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683b5b8a98f7b1390ddd5516ea9247a2
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51.010-1
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14.5.1.2 TCH/AFS
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14.5.1.2.1 Definition
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The adjacent channel selectivity is a measure of the capability of the receiver to receive a wanted modulated signal without exceeding a given degradation due to the presence of an unwanted signal in the adjacent channel.
The adjacent channel can be adjacent in the RF spectrum or in time. There are therefore two types of adjacent channel selectivity:
1) Adjacent RF channel selectivity, which is specifically tested in this subclause.
2) Adjacent Time Slot selectivity, which is not tested in this subclause.
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14.5.1.2.2 Conformance requirement
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1. With adjacent channel interference at 200 kHz above and below the wanted signal and signal level 9 dB above the wanted signal level:
1.1 For a TUhigh faded wanted signal and a TUhigh adjacent channel interferer, the FER for TCH/AFS shall be within the requirements of table 2 in 3GPP TS 05.05; 3GPP TS 05.05, 6.3.
1.2 For a TUhigh faded wanted signal and a TUhigh adjacent channel interferer, the Class Ib and Class II RBER shall be within the requirements of table 2 in 3GPP TS 05.05; 3GPP TS 05.05, 6.3.
2. For adjacent channel interference at 400 kHz above and below the wanted signal frequency and signal level 41 dB above the wanted signal level:
2.1 For a TUhigh faded wanted signal and a TUhigh adjacent channel interferer, the FER for TCH/AFS shall be within the requirements of table 2 in 3GPP TS 05.05; 3GPP TS 05.05, 6.3.
1.2 For a TUhigh faded wanted signal and a TUhigh adjacent channel interferer, the Class Ib and Class II RBER shall be within the requirements of table 2 in 3GPP TS 05.05; 3GPP TS 05.05, 6.3.
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14.5.1.2.3 Test purpose
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1 To verify that with a TUhigh adjacent channel interferer at 200 kHz above and below the wanted TUhigh signal frequency and the interfering signal at a level resulting in the specified interference ratio:
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1.1 Conformance requirement 1.1 is met with an allowance for the statistical significance of the test.
1.2 Conformance requirement 1.2 is met with an allowance for the statistical significance of the test.
2. To verify that with a TUhigh adjacent channel interferer at 400 kHz above and below a TUhigh wanted signal frequency and the interfering signal at a level resulting in the specified interference ratio:
2.1 Conformance requirement 2.1 is met with an allowance for the statistical significance of the test.
2.2 Conformance requirement 2.2 is met with an allowance for the statistical significance of the test.
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14.5.1.2.4 Method of test
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14.5.1.2.4.1 Initial conditions
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A call is set up according to the generic call set up procedure on a TCH/AFS with an ARFCN in the mid ARFCN range, power control level set to maximum power.
The multirate configuration indicates the use of a codec set limited to 12.2 kbit/s.
The SS commands the MS to create the traffic channel loop back signalling erased frames.
The SS transmits Standard Test Signal C1 on the TCH (wanted signal).
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14.5.1.2.4.2 Procedure
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a) In addition to the wanted signal, the SS transmits an independent, uncorrelated interfering signal, Standard Test Signal I1 (unwanted signal).
The unwanted signal is continuous and has no fixed relationship with the bit transitions of the wanted signal.
The fading characteristic of the wanted and the unwanted signal is set to TUHigh.
The unwanted signal is transmitted at a nominal frequency 200 kHz above the nominal frequency of the wanted signal. Its amplitude is set according to the specified reference interference ratio (‑9 dB for 200 kHz offset), meaning 9 dB above that of the wanted signal.
b) The SS compares the data of the signal that it sends to the MS with the signal which is looped back from the receiver after demodulation and decoding, and checks the frame erasure indication.
c) The SS tests the frame erasure compliance for the TCH/AFS by examining at least the minimum number of samples of consecutive frames. The number of frame erasure events is recorded.
d) The SS determines the number of residual bit error events for the bits of the class Ib, by examining sequences of at least the minimum number of samples of consecutive bits of class Ib, Bits are only taken from those frames for which no bad frame indication was given.
e) The unwanted signal is moved to a nominal frequency 200 kHz below the nominal frequency of the wanted signal. Its amplitude is set according to the specified reference interference ratio (‑9 dB-3 dB for 200 kHz offset), meaning 12 dB above that of the wanted signal.
f) The SS uses a Channel Mode Modify procedure to change the active codec set to 7.95 kbit/s and steps b) to d) are repeated.
g) The unwanted signal is moved to a nominal frequency 400 kHz above the nominal frequency of the wanted signal. Its amplitude is set to 3 dB below the reference interference ratio ((‑41 dB ‑ 3 dB) for 400 kHz offset), meaning 44 dB above that of the wanted signal.
h) The SS uses a Channel Mode Modify procedure to change the active codec set to 5.9 kbit/s and steps b) to d) are repeated.
i) The unwanted signal is moved to a nominal frequency 400 kHz below the nominal frequency of the wanted signal. Its amplitude is set to 3 dB below the reference interference ratio ((‑41 dB ‑ 3 dB) for 400 kHz offset), meaning 44 dB above that of the wanted signal.
j) The SS uses a Channel Mode Modify procedure to change the active codec set to 4.75 kbit/s and steps b) to d) are repeated.
Maximum/Minimum Duration of Test
Pre Rel-5 MS
Maximum: 16 minutes (GSM850, GSM900), 42 minutes (DCS1800, PCS1900).
Minimum: 14 minutes (GSM850, GSM900), 7 minutes (DCS1800, PCS1900).
Rel-5 onwards MS
Maximum: 23 minutes (GSM850, GSM900), 125 minutes (DCS1800, PCS1900).
Minimum: 14 minutes (GSM850, GSM900), 17 minutes (DCS1800, PCS1900).
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14.5.1.2.5 Test requirements
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Testing the adjacent channel interference performance is performed using statistical methods that lead to an early pass/fail decision with test time significantly reduced for MS with BER/BLER not on the limit.
For more information on statistical testing of BER/BLER performance, especially the definition of the limit lines refer to Annex 6.2
Wrong decision risk F for one single error ratio test:
Fpass = Ffail = F and F = 0.2%
Wrong decision probability D per test step:
Dpass = Dfail = D and D = 0.0085%
Parameters for limit lines:
1. D = 0.000085 wrong decision probability per test step.
2. M = 1.5 bad DUT factor
3. ne number of (error) events.
4. ns number of samples. The error rate is calculated from ne and ns.
Limit checking
Before limit checking is valid the minimum test time due to fading needs to be considered:
Testing under multipath and interference conditions requires that at least 990 wavelengths are crossed with the speed given in the fading profile. This leads to a minimum test time depending on the frequency range. No early pass/fail decision is allowed until the minimum test time due to fading has elapsed.
Table 14-56: Minimum test times due to TU high fading conditions
Full Rate 50 km/h
Frequency
0,4
0,7
0,85
0,9
1,8
1,9
GHz
Wavelength
0,75
0,43
0,35
0,33
0,17
0,16
m
990 Waves
743
424
349
330
165
156
m
min net test time
53
31
25
24
12
11
s @ 50km/h
min test time
428
244
201
190
95
90
s
0:07:08
0:04:04
0:03:21
0:03:10
0:01:35
0:01:30
hh:mm:ss
If the minimum test time due to multipath conditions exceeds the target test time, then the test runs for the minimum test time due to multipath conditions and the decision is done by comparing the result with the “derived test limit”. In this case early pass/fail decisions are obsolete.
If the target test time exceeds the minimum test time due to multipath conditions early pass/fail decisions can be headed for in order to accelerate test execution.
For an early decision a minimum number of (error) events is necessary.
For an early pass decision ne ≥ 1 (inclusive artificial error)
For an early fail decision ne ≥ 7
When the target test time has been reached the test is finished and a pass/fail decision can be made.
The error rates measured for different channels and under the different propagation conditions shall be tested according to the values given in table 14-57 or 14-58. Adjacent channel rejection tests with a frequency condition noted as "@‑ndB" are performed for an interference ratio n dB below the reference interference ratio (see 3GPP TS 05.05). Where an entry in the table is ‘-‘, this combination should not be tested.
Table 14-57: Statistical test limits for GSM 400, GSM 700, T-GSM 810, GSM 850 and GSM 900 adjacent channel rejection
TU high no FH
0.4 to 0.9GHz
frames per s
Orig. BER
Derived
Target number
Target test
Target test time
Channel
bits per sec
clas1b per s
requirement
test limit
of samples
time (s)
(hh:mm:ss)
AFS 12.2
frames
12200
50
0,060000
0,074040
4660
93
00:01:33
Class1b
12200
8150
0,017000
0,020978
16446
2
00:00:02
AFS 7.95
frames @-3dB
7950
50
Pre Rel-5:
0,075000
Rel-5:
0,053000
Pre Rel-5:
0,092550
Rel-5:
0,065402
Pre Rel-5:
3728
Rel-5:
5275
Pre Rel-5:
75
Rel-5:
106
Pre Rel-5:
00:01:15
Rel-5:
00:01:46
Class1b @-3dB
7950
4200
Pre Rel-5:
0,015000
Rel-5:
0,010000
Pre Rel-5:
0,018510
Rel-5:
0,012340
Pre Rel-5:
18639
Rel-5:
27958
Pre Rel-5:
4
Rel-5:
7
Pre Rel-5:
00:00:04
Rel-5:
00:00:07
AFS 5.9
frames @-3dB
5900
50
Pre Rel-5:
0,032000
Rel-5:
0,020000
Pre Rel-5:
0,039488
Rel-5:
0,024680
Pre Rel-5:
8737
Rel-5:
13979
Pre Rel-5:
175
Rel-5:
280
Pre Rel-5:
00:02:55
Rel-5:
00:04:40
Class1b @-3dB
5900
3150
Pre Rel-5:
0,002900
Rel-5:
0,002300
Pre Rel-5:
0,003579
Rel-5:
0,002838
Pre Rel-5:
96407
Rel-5:
121556
Pre Rel-5:
31
Rel-5:
39
Pre Rel-5:
00:00:31
Rel-5:
00:00:39
AFS 4.75
frames @-3dB
4750
50
Pre Rel-5:
0,017000
Rel-5:
0,008200
Pre Rel-5:
0,020978
Rel-5:
0,010119
Pre Rel-5:
16446
Rel-5:
34095
Pre Rel-5:
329
Rel-5:
682
Pre Rel-5:
00:05:29
Rel-5:
00:11:22
Class1b @-3dB
4750
2800
Pre Rel-5:
0,001500
Rel-5:
0,001100
Pre Rel-5:
0,001851
Rel-5:
0,001357
Pre Rel-5:
186386
Rel-5:
254162
Pre Rel-5:
67
Rel-5:
91
Pre Rel-5:
00:01:07
Rel-5:
00:01:31
Table 14-58: Statistical test limits for DCS 1 800 and PCS 1 900 adjacent channel rejection
TU high no FH
1.8 to 1.9 GHz
frames per s
Orig. BER
Derived
Target number
Target test
Target test time
Channel
bits per sec
clas1b per s
requirement
test limit
of samples
time (s)
(hh:mm:ss)
AFS 12.2
frames
12200
50
Pre Rel-5:
0,035000
Rel-5:
0,027000
Pre Rel-5:
0,043190
Rel-5:
0,033318
Pre Rel-5:
7898
Rel-5:
10355
Pre Rel-5:
160
Rel-5:
207
Pre Rel-5:
00:02:40
Rel-5:
00:03:27
Class1b
12200
8150
Pre Rel-5:
0,018000
Rel-5:
0,016000
Pre Rel-5:
0,022212
Rel-5:
0,019744
Pre Rel-5:
15533
Rel-5:
17474
Pre Rel-5:
2
Rel-5:
2
Pre Rel-5:
00:00:02
Rel-5:
00:00:02
AFS 7.95
frames @-3dB
7950
50
Pre Rel-5:
0,034000
Rel-5:
0,020000
Pre Rel-5:
0,041956
Rel-5:
0,024680
Pre Rel-5:
8223
Rel-5:
13979
Pre Rel-5:
164
Rel-5:
280
Pre Rel-5:
00:02:44
Rel-5:
00:04:40
Class1b @-3dB
7950
4200
Pre Rel-5:
0,007800
Rel-5:
0,006800
Pre Rel-5:
0,009625
Rel-5:
0,008391
Pre Rel-5:
35844
Rel-5:
41115
Pre Rel-5:
9
Rel-5:
10
Pre Rel-5:
00:00:09
Rel-5:
00:00:10
AFS 5.9
frames @-3dB
5900
50
Pre Rel-5:
0,010000
Rel-5:
0,004100
Pre Rel-5:
0,012340
Rel-5:
0,005059
Pre Rel-5:
27958
Rel-5:
68190
Pre Rel-5:
559
Rel-5:
1364
Pre Rel-5:
00:09:19
Rel-5:
00:22:44
Class1b @-3dB
5900
3150
Pre Rel-5:
0.001200
Rel-5:
0,000790
Pre Rel-5:
0,001481
Rel-5:
0,000975
Pre Rel-5:
232983
Rel-5:
353897
Pre Rel-5:
74
Rel-5:
112
Pre Rel-5:
00:01:14
Rel-5:
00:01:52
AFS 4.75
frames @-3dB
4750
50
Pre Rel-5:
0,003500
Rel-5:
0,001000
Pre Rel-5:
0,004319
Rel-5:
0,001234
Pre Rel-5:
79880
Rel-5:
279579
Pre Rel-5:
1598
Rel-5:
5592
Pre Rel-5:
00:26:38
Rel-5:
01:33:12
Class1b @-3dB
4750
2800
Pre Rel-5:
0,000330
Rel-5:
0,000210
Pre Rel-5:
0,000407
Rel-5:
0,000259
Pre Rel-5:
847208
Rel-5:
1331327
Pre Rel-5:
303
Rel-5:
475
Pre Rel-5:
00:05:03
Rel-5:
00:07:55
14.5.1.2a Adjacent channel rejection - TCH/AFS in TIGHTER configuration
14.5.1.2a.1 Definition
The adjacent channel selectivity is a measure of the capability of the receiver to receive a wanted modulated signal without exceeding a given degradation due to the presence of an unwanted signal in the adjacent channel.
The adjacent channel can be adjacent in the RF spectrum or in time. There are therefore two types of adjacent channel selectivity:
1) Adjacent RF channel selectivity, which is specifically tested in this subclause.
2) Adjacent Time Slot selectivity, which is not tested in this subclause.
14.5.1.2a.2 Conformance requirement
3GPP TS 45.005 subclause 6.3.3
Table 6.3-1a: Reference interference ratio requirements in adjacent channels for Packet-switched (Normal symbol-rate), Enhanced circuit-switched data, Wideband AMR and 8-PSK modulated AMR channels, speech and associated control channels in VAMOS mode, TIGHTER – MS
Modulation of wanted signal
GMSK
8-PSK
16-QAM
32-QAM
AQPSK
for adjacent (200 kHz) interference
C/Ia1 =
C/Ic ‑ 18 dB, see table 2af for TIGHTER MS
See table 2l for speech, see tables 2g, 2i, 2n and 2w for other channels, see table 2af for TIGHTER MS
See table 2w, see table 2af for TIGHTER MS
See table
2w, see table 2af for TIGHTER MS
See table 2aa and 2ab
for adjacent (400 kHz) interference
C/Ia2 =
C/Ic ‑ 50 dB
C/Ic - 50 dB
C/Ic - 48 dB
C/Ic - 48 dB
[Note 1]
for adjacent (600 kHz) interference
C/Ia3 =
C/Ic ‑ 58 dB
C/Ic - 58 dB
NOTE 1: The adjacent channel interference @ 400 kHz requirement (C/Ia2) does not apply to channels in VAMOS mode.
NOTE: The C/Ia3 figure is given for information purposes and will not require testing. It was calculated for the case of an equipment with an antenna connector, operating at output power levels of +33 dBm and below. Rejection of signals at 600 kHz is specified in subclause 5.1.
3GPP TS 45.005 subclause 6.3.4
For all adjacent channel (200 kHz) requirements specified in table 2af for TIGHTER MS, the wanted signal level shall be: -75 dBm + Iar + Corr, where:
Iar = the adjacent channel (200 kHz) interference ratio according to table 2af
Corr = the correction factor for reference performance according to table 6.2-4.
14.5.1.2a.3 Test purpose
1. For TCH/AFS FER, MS shall meet the reference interference performance mentioned in 3GPP TS 45.005 sub clause 6.3.3, for adjacent-channel interference ratio mentioned in table 2af according to propagation conditions.
2. At reference adjacent-channel interference, the TCH/AFS class Ib BER shall meet the reference interference performance of table 2af in 3GPP TS 45.005.
14.5.1.2a.4 Method of test
14.5.1.2a.4.1 Initial conditions
A call is set up according to the generic call set up procedure on a TCH/AFS with an ARFCN in the mid ARFCN range, power control level set to maximum power.
The multirate configuration indicates the use of a codec set limited to 12.2 kbit/s.
The SS commands the MS to create the traffic channel loop back signalling erased frames.
The SS transmits Standard Test Signal C1 on the TCH (wanted signal).
14.5.1.2a.4.2 Procedure
a) The fading characteristic of the wanted and the unwanted signal is set to TUHigh no FH.
b) In addition to the wanted signal, the SS transmits an independent, uncorrelated interfering signal, Standard Test Signal I1 (unwanted signal).
The unwanted signal is continuous and has no fixed relationship with the bit transitions of the wanted signal.
The unwanted signal is transmitted at a nominal frequency 200 kHz above the nominal frequency of the wanted signal. Its amplitude is set according to the specified reference interference ratio as in table 2af.
c) The SS compares the data of the signal that it sends to the MS with the signal which is looped back from the receiver after demodulation and decoding, and checks the frame erasure indication.
d) The SS tests the frame erasure compliance for the TCH/AFS by examining at least the minimum number of samples of consecutive frames. The number of frame erasure events is recorded.
e) The SS determines the number of residual bit error events for the bits of the class Ib, by examining sequences of at least the minimum number of samples of consecutive bits of class Ib, Bits are only taken from those frames for which no bad frame indication was given.
f) The SS uses a Channel Mode Modify procedure to change the active codec set to 7.95 kbit/s and steps c) to e) are repeated.
g) The unwanted signal is moved to a nominal frequency 400 kHz above the nominal frequency of the wanted signal. Its amplitude is set to 3 dB below the reference interference ratio ((‑41 dB ‑ 3 dB) for 400 kHz offset), meaning 44 dB above that of the wanted signal.
h) The SS uses a Channel Mode Modify procedure to change the active codec set to 5.9 kbit/s and steps c) to e) are repeated.
i) The unwanted signal is moved to a nominal frequency 400 kHz below the nominal frequency of the wanted signal. Its amplitude is set to 3 dB below the reference interference ratio ((‑41 dB ‑ 3 dB) for 400 kHz offset), meaning 44 dB above that of the wanted signal.
j) The SS uses a Channel Mode Modify procedure to change the active codec set to 4.75 kbit/s and steps c) to e) are repeated.
Maximum/Minimum Duration of Test
Maximum: 23 minutes (GSM850, GSM900), 125 minutes (DCS1800, PCS1900).
Minimum: 14 minutes (GSM850, GSM900), 17 minutes (DCS1800, PCS1900).
14.5.1.2a.5 Test requirements
Testing the adjacent channel interference performance is performed using statistical methods that lead to an early pass/fail decision with test time significantly reduced for MS with BER/BLER not on the limit.
For more information on statistical testing of BER/BLER performance, especially the definition of the limit lines refer to Annex 6.2.
Wrong decision risk F for one single error ratio test:
Fpass = Ffail = F and F = 0.2%
Wrong decision probability D per test step:
Dpass = Dfail = D and D = 0.0085%
Parameters for limit lines:
1. D = 0.000085 wrong decision probability per test step.
2. M = 1.5 bad DUT factor
3. ne number of (error) events.
4. ns number of samples. The error rate is calculated from ne and ns.
Limit checking
Before limit checking is valid the minimum test time due to fading needs to be considered:
Testing under multipath and interference conditions requires that at least 990 wavelengths are crossed with the speed given in the fading profile. This leads to a minimum test time depending on the frequency range. No early pass/fail decision is allowed until the minimum test time due to fading has elapsed.
Table 14.5.1.2a.5-1: Minimum test times due to TU high fading conditions
Full Rate 50 km/h
Frequency
0,4
0,7
0,85
0,9
1,8
1,9
GHz
Wavelength
0,75
0,43
0,35
0,33
0,17
0,16
m
990 Waves
743
424
349
330
165
156
m
min net test time
53
31
25
24
12
11
s @ 50km/h
min test time
428
244
201
190
95
90
s
0:07:08
0:04:04
0:03:21
0:03:10
0:01:35
0:01:30
hh:mm:ss
If the minimum test time due to multipath conditions exceeds the target test time, then the test runs for the minimum test time due to multipath conditions and the decision is done by comparing the result with the “derived test limit”. In this case early pass/fail decisions are obsolete.
If the target test time exceeds the minimum test time due to multipath conditions early pass/fail decisions can be headed for in order to accelerate test execution.
For an early decision a minimum number of (error) events is necessary.
For an early pass decision ne ≥ 1 (inclusive artificial error)
For an early fail decision ne ≥ 7
When the target test time has been reached the test is finished and a pass/fail decision can be made.
The error rates measured for different channels and under the different propagation conditions shall be tested according to the values given in table 14.5.1.2a.5-2 and 14.5.1.2a.5-3.
Table 14.5.1.2a.5-2: Statistical test limits for GSM 850 and GSM 900 Adjacent Channel Rejection
TU high no FH
0.4 to 0.9GHz
frames per s
Orig. BER
Derived
Target number
Target test
Target test time
Channel
bits per sec
class1b per s
requirement
test limit
of samples
time (s)
(hh:mm:ss)
AFS 12.2
Frames
12200
50
0,060000
0,074040
4660
93
00:01:33
Class1b
12200
8150
0,017000
0,020978
16446
2
00:00:02
AFS 7.95
frames @-3dB
7950
50
0,053000
0,065402
5275
106
00:01:46
Class1b @-3dB
7950
4200
0,010000
0,012340
27958
7
00:00:07
AFS
5.9
frames @-3dB
5900
50
0,020000
0,024680
13979
280
00:04:40
Class1b @-3dB
5900
3150
0,002300
0,002838
121556
39
00:00:39
AFS 4.75
frames @-3dB
4750
50
0,008200
0,010119
34095
682
00:11:22
Class1b @-3dB
4750
2800
0,001100
0,001357
254162
91
00:01:31
Table 14.5.1.2a.5-3: Statistical test limits for DCS 1800 and PCS 1900 Adjacent Channel Rejection
TU high no FH
1.8 to 1.9 GHz
frames per s
Orig. BER
Derived
Target number
Target test
Target test time
Channel
bits per sec
class1b per s
requirement
test limit
of samples
time (s)
(hh:mm:ss)
AFS 12.2
Frames
12200
50
0,027000
0,033318
10355
207
00:03:27
Class1b
12200
8150
0,016000
0,019744
17474
2
00:00:02
AFS 7.95
frames @-3dB
7950
50
0,020000
0,024680
13979
280
00:04:40
Class1b @-3dB
7950
4200
0,006800
0,008391
41115
10
00:00:10
AFS
5.9
frames @-3dB
5900
50
0,004100
0,005059
68190
1364
00:22:44
Class1b @-3dB
5900
3150
0,000790
0,000975
353897
112
00:01:52
AFS 4.75
frames @-3dB
4750
50
0,001000
0,001234
279579
5592
01:33:12
Class1b @-3dB
4750
2800
0,000210
0,000259
1331327
475
00:07:55
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.5.1.3 TCH/AHS
| |
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
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14.5.1.3.1 Definition
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The adjacent channel selectivity is a measure of the capability of the receiver to receive a wanted modulated signal without exceeding a given degradation due to the presence of an unwanted signal in the adjacent channel.
The adjacent channel can be adjacent in the RF spectrum or in time. There are therefore two types of adjacent channel selectivity:
1) Adjacent RF channel selectivity which is specifically tested in this subclause.
2) Adjacent Time Slot selectivity, which is not tested in this subclause.
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51.010-1
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14.5.1.3.2 Conformance requirement
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1. With adjacent channel interference at 200 kHz above and below the wanted signal and signal level 9 dB above the wanted signal level:
1.1 For a TUhigh faded wanted signal and a TUhigh adjacent channel interferer, the FER for TCH/AHS shall be within the requirements of table 2 in 3GPP TS 05.05; 3GPP TS 05.05, 6.3.
1.2 For a TUhigh faded wanted signal and a TUhigh adjacent channel interferer, the Class Ib and Class II RBER shall be within the requirements of table 2 in 3GPP TS 05.05; 3GPP TS 05.05, 6.3.
2. For adjacent channel interference at 400 kHz above and below the wanted signal frequency and signal level 41 dB above the wanted signal level:
2.1 For a TUhigh faded wanted signal and a TUhigh adjacent channel interferer, the FER for TCH/AHS shall be within the requirements of table 2 in 3GPP TS 05.05; 3GPP TS 05.05, 6.3.
2.2 For a TUhigh faded wanted signal and a TUhigh adjacent channel interferer, the Class Ib and Class II RBER shall be within the requirements of table 2 in 3GPP TS 05.05; 3GPP TS 05.05, 6.3.
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51.010-1
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14.5.1.3.3 Test purpose
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1. To verify that with a TUhigh adjacent channel interferer at 200 kHz above and below the wanted TUhigh signal frequency and the interfering signal at a level resulting in the specified interference ratio:
1.1 Conformance requirement 1.1 is met with an allowance for the statistical significance of the test.
1.2 Conformance requirement 1.2 is met with an allowance for the statistical significance of the test.
2. To verify that with a TUhigh adjacent channel interferer at 400 kHz above and below a TUhigh wanted signal frequency and the interfering signal at a level resulting in the specified interference ratio:
2.1 Conformance requirement 2.1 is met with an allowance for the statistical significance of the test.
2.2 Conformance requirement 2.2 is met with an allowance for the statistical significance of the test.
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51.010-1
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14.5.1.3.4 Method of test
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51.010-1
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14.5.1.3.4.1 Initial conditions
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A call is set up according to the generic call set up procedure on a TCH/AHS with an ARFCN in the mid ARFCN range, power control level set to maximum power.
The multirate configuration indicates the use of a codec set limited to 7,4 kbit/s.
The SS commands the MS to create the traffic channel loop back signalling erased frames.
The SS transmits Standard Test Signal C1 on the TCH (wanted signal).
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51.010-1
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14.5.1.3.4.2 Procedure
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a) In addition to the wanted signal, the SS transmits an independent, uncorrelated interfering signal, Standard Test Signal I1 (unwanted signal).
The unwanted signal is continuous and has no fixed relationship with the bit transitions of the wanted signal.
The fading characteristic of the wanted and the unwanted signal is set to TUHigh.
The unwanted signal is transmitted at a nominal frequency 200 kHz above the nominal frequency of the wanted signal. The interference ratio is set to 3 dB above the reference interference ratio (‑9 dB + 3 dB), meaning that the amplitude of the interferer is set to 6 dB above that of the wanted signal.
b) The SS compares the data of the signal that it sends to the MS with the signal which is looped back from the receiver after demodulation and decoding, and checks the frame erasure indication.
c) The SS tests the frame erasure compliance for the TCH/AHS by examining at least the minimum number of samples of consecutive frames. The number of frame erasure events is recorded.
d) The SS determines the number of residual bit error events for the bits of the class Ib and class II, by examining sequences of at least the minimum number of samples of consecutive bits of class Ib and class II, Bits are only taken from those frames for which no bad frame indication was given.
e) The unwanted signal is moved to a nominal frequency 200 kHz below the nominal frequency of the wanted signal. The interference ratio is set to 3 dB above the reference interference ratio (‑9 dB + 3 dB), meaning that the amplitude of the interferer is set to 6 dB above that of the wanted signal.
f) The SS uses a Channel Mode Modify procedure to change the active codec set to 6.7 kbit/s and steps b) to d) are repeated.
g) The unwanted signal is moved to a nominal frequency 400 kHz above the nominal frequency of the wanted signal. Its amplitude is set to the reference interference ratio (‑41 dB for 400 kHz offset), meaning 41 dB above that of the wanted signal.
h) The SS uses a Channel Mode Modify procedure to change the active codec set to 5.15 kbit/s and steps b) to d) are repeated.
i) The unwanted signal is moved to a nominal frequency 400 kHz below the nominal frequency of the wanted signal. Its amplitude is set to the reference interference ratio (‑41 dB for 400 kHz offset), meaning 41 dB above that of the wanted signal.
j) The SS uses a Channel Mode Modify procedure to change the active codec set to 4.75 kbit/s and steps b) to d) are repeated.
Maximum/Minimum Duration of Test
Pre Rel-5 MS
Maximum: 27 minutes (GSM850), 26 minutes (GSM900), 14 minutes (DCS1800, PCS1900).
Minimum: 27 minutes (GSM850), 26 minutes (GSM900), 13 minutes (DCS1800), 12 minutes (PCS1900).
Rel-5 onwards MS
Maximum: 27 minutes (GSM850), 26 minutes (GSM900), 15 minutes (DCS1800, PCS1900).
Minimum: 27 minutes (GSM850), 26 minutes (GSM900), 13 minutes (DCS1800), 12 minutes (PCS1900).
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51.010-1
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14.5.1.3.5 Test requirements
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Testing the adjacent channel interference performance is performed using statistical methods that lead to an early pass/fail decision with test time significantly reduced for MS with BER/BLER not on the limit.
For more information on statistical testing of BER/BLER performance, especially the definition of the limit lines refer to Annex 6.2
Wrong decision risk F for one single error ratio test:
Fpass = Ffail = F and F = 0.2%
Wrong decision probability D per test step:
Dpass = Dfail = D and D = 0.0085%
Parameters for limit lines:
1. D = 0.000085 wrong decision probability per test step.
2. M = 1.5 bad DUT factor
3. ne number of (error) events.
4. ns number of samples. The error rate is calculated from ne and ns.
Limit checking
Before limit checking is valid the minimum test time due to fading needs to be considered:
Testing under multipath and interference conditions requires that at least 990 wavelengths are crossed with the speed given in the fading profile. This leads to a minimum test time depending on the frequency range. No early pass/fail decision is allowed until the minimum test time due to fading has elapsed.
Table 14-59: Minimum test times due to TU high fading conditions
Half Rate 50 km/h
Frequency
0,4
0,7
0,85
0,9
1,8
1,9
GHz
Wavelength
0,75
0,43
0,35
0,33
0,17
0,16
m
990 Waves
743
424
349
330
165
156
m
min net test time
53
31
25
24
12
11
s @ 50km/h
min test time
855
489
403
380
190
180
s
0:14:15
0:08:09
0:06:43
0:06:20
0:03:10
0:03:00
hh.mm:ss
If the minimum test time due to multipath conditions exceeds the target test time, then the test runs for the minimum test time due to multipath conditions and the decision is done by comparing the result with the “derived test limit”. In this case early pass/fail decisions are obsolete.
If the target test time exceeds the minimum test time due to multipath conditions early pass/fail decisions can be headed for in order to accelerate test execution.
For an early decision a minimum number of (error) events is necessary.
For an early pass decision ne ≥ 1 (inclusive artificial error)
For an early fail decision ne ≥ 7
When the target test time has been reached the test is finished and a pass/fail decision can be made.
The error rates measured for different channels and under the different propagation conditions shall be tested according to the values given in table 14-60 or 14-61. Adjacent channel rejection tests with a frequency condition noted as "@+ndB" are performed for an interference ratio n dB above the reference interference ratio (see 3GPP TS 05.05).
Table 14-60: Statistical test limits for GSM 400, GSM 700, T-GSM 810, GSM 850 and GSM 900 adjacent channel rejection
TU high no FH
0.4 to 0.9GHz
frames per s
Orig. BER
Derived
Target number
Target test
Target test time
clas1b per s
requirement
test limit
of samples
time (s)
(hh:mm:ss)
Channel
bits per sec
class II per s
AHS 7.4
frames @+3dB
7400
50
0,048000
0,059232
5825
116
00:01:56
Class1b @+3dB
7400
2950
0,005100
0,006293
54819
19
00:00:19
Class II @+3dB
7400
1400
0,033000
0,040722
8472
6
00:00:06
AHS 6.7
frames @+3dB
6700
50
0,023000
0,028382
12156
243
00:04:03
Class1b @+3dB
6700
2750
0,003900
0,004813
71687
26
00:00:26
Class II @+3dB
6700
1200
0,036000
0,044424
7766
6
00:00:06
AHS 5.15
frames
5150
50
0,033000
0,040722
8472
169
00:02:49
Class1b
5150
2100
0,006000
0,007404
46596
22
00:00:22
Class II
5150
600
0,069000
0,085146
4052
7
00:00:07
AHS 4.75
frames
4750
50
Pre Rel-5:
0,025000
Rel-5:
0,018000
Pre Rel-5:
0,030850
Rel-5:
0,022212
Pre Rel-5:
11184
Rel-5:
15532
Pre Rel-5:
224
Rel-5:
311
Pre Rel-5:
00:03:44
Rel-5:
00:05:11
Class1b
4750
2200
Pre Rel-5:
0,002900
Rel-5:
0,002200
Pre Rel-5:
0,003579
Rel-5:
0,002715
Pre Rel-5:
96407
Rel-5:
127081
Pre Rel-5:
44
Rel-5:
58
Pre Rel-5:
00:00:44
Rel-5:
00:00:58
Class II
4750
600
Pre Rel-5:
0,075000
Rel-5:
0,070000
Pre Rel-5:
0,092550
Rel-5:
0,086380
Pre Rel-5:
3728
Rel-5:
3994
Pre Rel-5:
6
Rel-5:
7
Pre Rel-5:
00:00:06
Rel-5:
00:00:07
Table 14-61: Statistical test limits for DCS 1 800 and PCS 1 900 adjacent channel rejection
TU high no FH
1.8 and 1.9 GHz
frames per s
Orig. BER
Derived
Target number
Target test
Target test time
clas1b per s
requirement
test limit
of samples
time (s)
(hh:mm:ss)
Channel
bits per sec
class II per s
AHS 7.4
frames @+3dB
7400
50
Pre Rel-5:
0,054000
Rel-5:
0,049000
Pre Rel-5:
0,066636
Rel-5:
0,060466
Pre Rel-5:
5178
Rel-5:
5706
Pre Rel-5:
104
Rel-5:
114
Pre Rel-5:
00:01:44
Rel-5:
00:01:54
Class1b @+3dB
7400
2950
Pre Rel-5:
0,006000
Rel-5:
0,005100
Pre Rel-5:
0,007404
Rel-5:
0,006293
Pre Rel-5:
46597
Rel-5:
54819
Pre Rel-5:
16
Rel-5:
19
Pre Rel-5:
00:00:16
Rel-5:
00:00:19
Class II @+3dB
7400
1400
Pre Rel-5:
0,035000
Rel-5:
0,033000
Pre Rel-5:
0,043190
Rel-5:
0,040722
Pre Rel-5:
7988
Rel-5:
8472
Pre Rel-5:
6
Rel-5:
6
Pre Rel-5:
00:00:06
Rel-5.
00:00:06
AHS 6.7
frames @+3dB
6700
50
0,025000
0,030850
11183
224
00:03:44
Class1b @+3dB
6700
2750
0,003800
0,004689
73573
27
00:00:27
Class II @+3dB
6700
1200
Pre Rel-5:
0,039000
Rel-5:
0,035000
Pre Rel-5:
0,048126
Rel-5:
0,043190
Pre Rel-5:
7169
Rel-5:
7988
Pre Rel-5:
6
Rel-5:
6
Pre Rel-5:
00:00:06
Rel-5:
00:00:06
AHS 5.15
frames
5150
50
0,038000
0,046892
7357
147
00:02:27
Class1b
5150
2100
0,006600
0,008144
42360
20
00:00:20
Class II
5150
600
0,068000
0,083912
4111
7
00:00:07
AHS 4.75
frames
4750
50
Pre Rel-5:
0,028000
Rel-5:
0,021000
Pre Rel-5:
0,034552
Rel-5:
0,025914
Pre Rel-5:
9985
Rel-5:
13313
Pre Rel-5:
200
Rel-5:
266
Pre Rel-5:
00:03:20
Rel-5:
00:04:26
Class1b
4750
2200
0,002500
0,003085
111831
51
00:00:51
Class II
4750
600
Pre Rel-5:
0,075000
Rel-5:
0,070000
Pre Rel-5:
0,09255
Rel-5:
0,086380
Pre Rel-5:
3728
Rel-5:
3994
Pre Rel-5:
6
Rel-5:
7
Pre Rel-5:
00:00:06
Rel-5:
00:00:07
14.5.1.3a Adjacent channel rejection - TCH/AHS in TIGHTER configuration
14.5.1.3a.1 Definition
The adjacent channel selectivity is a measure of the capability of the receiver to receive a wanted modulated signal without exceeding a given degradation due to the presence of an unwanted signal in the adjacent channel.
The adjacent channel can be adjacent in the RF spectrum or in time. There are therefore two types of adjacent channel selectivity:
1) Adjacent RF channel selectivity which is specifically tested in this subclause.
2) Adjacent Time Slot selectivity, which is not tested in this subclause.
14.5.1.3a.2 Conformance requirement
3GPP TS 45.005 subclause 6.3.3
Table 6.3-1a: Reference interference ratio requirements in adjacent channels for Packet-switched (Normal symbol-rate), Enhanced circuit-switched data, Wideband AMR and 8-PSK modulated AMR channels, speech and associated control channels in VAMOS mode, TIGHTER – MS
Modulation of wanted signal
GMSK
8-PSK
16-QAM
32-QAM
AQPSK
for adjacent (200 kHz) interference
C/Ia1 =
C/Ic ‑ 18 dB, see table 2af for TIGHTER MS
See table 2l for speech, see tables 2g, 2i, 2n and 2w for other channels, see table 2af for TIGHTER MS
See table 2w, see table 2af for TIGHTER MS
See table
2w, see table 2af for TIGHTER MS
See table 2aa and 2ab
for adjacent (400 kHz) interference
C/Ia2 =
C/Ic ‑ 50 dB
C/Ic - 50 dB
C/Ic - 48 dB
C/Ic - 48 dB
[Note 1]
for adjacent (600 kHz) interference
C/Ia3 =
C/Ic ‑ 58 dB
C/Ic - 58 dB
NOTE 1: The adjacent channel interference @ 400 kHz requirement (C/Ia2) does not apply to channels in VAMOS mode.
NOTE: The C/Ia3 figure is given for information purposes and will not require testing. It was calculated for the case of an equipment with an antenna connector, operating at output power levels of +33 dBm and below. Rejection of signals at 600 kHz is specified in subclause 5.1.
3GPP TS 45.005 subclause 6.3.4
For all adjacent channel (200 kHz) requirements specified in table 2af for TIGHTER MS, the wanted signal level shall be: -75 dBm + Iar + Corr, where:
Iar = the adjacent channel (200 kHz) interference ratio according to table 2af
Corr = the correction factor for reference performance according to table 6.2-4.
14.5.1.3a.3 Test purpose
1. For TCH/AHS FER, MS shall meet the reference interference performance mentioned in 3GPP TS 45.005 sub clause 6.3.3, for adjacent-channel interference ratio mentioned in table 2af according to propagation conditions.
2. At reference adjacent-channel interference, the TCH/AHS class Ib BER shall meet the reference interference performance of table 2af in 3GPP TS 45.005.
3. At reference adjacent-channel interference, the TCH/AHS class II BER shall meet the reference interference performance of table 2af in 3GPP TS 45.005.
14.5.1.3a.4 Method of test
14.5.1.3a.4.1 Initial conditions
A call is set up according to the generic call set up procedure on a TCH/AHS with an ARFCN in the mid ARFCN range, power control level set to maximum power.
The multirate configuration indicates the use of a codec set limited to 7,4 kbit/s.
The SS commands the MS to create the traffic channel loop back signalling erased frames.
The SS transmits Standard Test Signal C1 on the TCH (wanted signal).
14.5.1.3a.4.2 Procedure
a) The fading characteristic of the wanted and the unwanted signal is set to TUHigh.
b) In addition to the wanted signal, the SS transmits an independent, uncorrelated interfering signal, Standard Test Signal I1 (unwanted signal).
The unwanted signal is continuous and has no fixed relationship with the bit transitions of the wanted signal.
The unwanted signal is transmitted at a nominal frequency 200 kHz above the nominal frequency of the wanted signal. Its amplitude is set according to the specified reference interference ratio as in table 2af.
c) The SS compares the data of the signal that it sends to the MS with the signal which is looped back from the receiver after demodulation and decoding, and checks the frame erasure indication.
d) The SS tests the frame erasure compliance for the TCH/AHS by examining at least the minimum number of samples of consecutive frames. The number of frame erasure events is recorded.
e) The SS determines the number of residual bit error events for the bits of the class Ib and class II, by examining sequences of at least the minimum number of samples of consecutive bits of class Ib and class II, Bits are only taken from those frames for which no bad frame indication was given.
f) The SS uses a Channel Mode Modify procedure to change the active codec set to 6.7 kbit/s and steps c) to e) are repeated
g) The unwanted signal is moved to a nominal frequency 400 kHz above the nominal frequency of the wanted signal. Its amplitude is set to the reference interference ratio (‑41 dB for 400 kHz offset), meaning 41 dB above that of the wanted signal as defined in Table 2.
h) The SS uses a Channel Mode Modify procedure to change the active codec set to 5.15 kbit/s and steps c) to e) are repeated.
i) The unwanted signal is moved to a nominal frequency 400 kHz below the nominal frequency of the wanted signal. Its amplitude is set to the reference interference ratio (‑41 dB for 400 kHz offset), meaning 41 dB above that of the wanted signal as defined in Table 2.
j) The SS uses a Channel Mode Modify procedure to change the active codec set to 4.75 kbit/s and steps c) to e) are repeated.
Maximum/Minimum Duration of Test
Maximum: 27 minutes (GSM850), 26 minutes (GSM900), 15 minutes (DCS1800, PCS1900).
Minimum: 27 minutes (GSM850), 26 minutes (GSM900), 13 minutes (DCS1800), 12 minutes (PCS1900).
14.5.1.3a.5 Test requirements
Testing the adjacent channel interference performance is performed using statistical methods that lead to an early pass/fail decision with test time significantly reduced for MS with BER/BLER not on the limit.
For more information on statistical testing of BER/BLER performance, especially the definition of the limit lines refer to Annex 6.2
Wrong decision risk F for one single error ratio test:
Fpass = Ffail = F and F = 0.2%
Wrong decision probability D per test step:
Dpass = Dfail = D and D = 0.0085%
Parameters for limit lines:
1. D = 0.000085 wrong decision probability per test step.
2. M = 1.5 bad DUT factor
3. ne number of (error) events.
4. ns number of samples. The error rate is calculated from ne and ns.
Limit checking
Before limit checking is valid the minimum test time due to fading needs to be considered:
Testing under multipath and interference conditions requires that at least 990 wavelengths are crossed with the speed given in the fading profile. This leads to a minimum test time depending on the frequency range. No early pass/fail decision is allowed until the minimum test time due to fading has elapsed.
Table 14.5.1.3a.5-1: Minimum test times due to TU high fading conditions
Half Rate 50 km/h
Frequency
0,4
0,7
0,85
0,9
1,8
1,9
GHz
Wavelength
0,75
0,43
0,35
0,33
0,17
0,16
m
990 Waves
743
424
349
330
165
156
m
min net test time
53
31
25
24
12
11
s @ 50km/h
min test time
855
489
403
380
190
180
s
0:14:15
0:08:09
0:06:43
0:06:20
0:03:10
0:03:00
hh.mm:ss
If the minimum test time due to multipath conditions exceeds the target test time, then the test runs for the minimum test time due to multipath conditions and the decision is done by comparing the result with the “derived test limit”. In this case early pass/fail decisions are obsolete.
If the target test time exceeds the minimum test time due to multipath conditions early pass/fail decisions can be headed for in order to accelerate test execution.
For an early decision a minimum number of (error) events is necessary.
For an early pass decision ne ≥ 1 (inclusive artificial error)
For an early fail decision ne ≥ 7
When the target test time has been reached the test is finished and a pass/fail decision can be made.
The error rates measured for different channels and under the different propagation conditions shall be tested according to the values given in table 14.5.1.3a.5-2 and 14.5.1.3a.5-3.
Table 14.5.1.3a.5-2: Statistical test limits for GSM 850 and GSM 900 Adjacent Channel Rejection
TU high no FH
0.4 to 0.9GHz
frames per s
Orig. BER
Derived
Target number
Target test
Target test time
class 1b per s
require-ment
test limit
of samples
time (s)
(hh:mm:ss)
Channel
bits per sec
class II per s
AHS 7.4
frames @+3dB
7400
50
0,048000
0,059232
5825
116
00:01:56
Class1b @+3dB
7400
2950
0,005100
0,006293
54819
19
00:00:19
Class II @+3dB
7400
1400
0,033000
0,040722
8472
6
00:00:06
AHS 6.7
frames @+3dB
6700
50
0,023000
0,028382
12156
243
00:04:03
Class1b @+3dB
6700
2750
0,003900
0,004813
71687
26
00:00:26
Class II @+3dB
6700
1200
0,036000
0,044424
7766
6
00:00:06
AHS 5.15
Frames
5150
50
0,033000
0,040722
8472
169
00:02:49
Class1b
5150
2100
0,006000
0,007404
46596
22
00:00:22
Class II
5150
600
0,069000
0,085146
4052
7
00:00:07
AHS 4.75
Frames
4750
50
0,018000
0,022212
15532
311
00:05:11
Class1b
4750
2200
0,002200
0,002715
127081
58
00:00:58
Class II
4750
600
0,070000
0,086380
3994
7
00:00:07
Table 14.5.1.3a.5-3: Statistical test limits for DCS 1800 and PCS 1900 Adjacent Channel Rejection
TU high no FH
1.8 and 1.9 GHz
frames per s
Orig. BER
Derived
Target number
Target test
Target test time
class1b per s
require-ment
test limit
of samples
time (s)
(hh:mm:ss)
Channel
bits per sec
class II per s
AHS 7.4
frames @+3dB
7400
50
0,049000
0,060466
5706
114
00:01:54
Class1b @+3dB
7400
2950
0,005100
0,006293
54819
19
00:00:19
Class II @+3dB
7400
1400
0,033000
0,040722
8472
6
00:00:06
AHS 6.7
frames @+3dB
6700
50
0,025000
0,030850
11183
224
00:03:44
Class1b @+3dB
6700
2750
0,003800
0,004689
73573
27
00:00:27
Class II @+3dB
6700
1200
0,035000
0,043190
7988
6
00:00:06
AHS 5.15
Frames
5150
50
0,038000
0,046892
7357
147
00:02:27
Class1b
5150
2100
0,006600
0,008144
42360
20
00:00:20
Class II
5150
600
0,068000
0,083912
4111
7
00:00:07
AHS 4.75
Frames
4750
50
0,021000
0,025914
13313
266
00:04:26
Class1b
4750
2200
0,002500
0,003085
111831
51
00:00:51
Class II
4750
600
0,070000
0,086380
3994
7
00:00:07
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683b5b8a98f7b1390ddd5516ea9247a2
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51.010-1
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14.5.1.4 O-TCH/AHS
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51.010-1
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14.5.1.4.1 Definition
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-
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51.010-1
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14.5.1.4.2 Conformance requirement
|
For 8-PSK modulated channels, speech channels (AMR and AMR-WB), the minimum interference ratio for which the reference performance for co channel interference (C/Ic) shall be met is specified in table 2k
The corresponding interference ratio for adjacent channel interference shall be:
Modulation of wanted signal
GMSK
8-PSK
‑
for adjacent (200 kHz) interference
C/Ia1
=
C/Ic ‑ 18 dB
See table 2l for speech, see tables 2f, 2g, 2h, 2i and 2n for other channels
‑
for adjacent (400 kHz) interference
C/Ia2
=
C/Ic ‑ 50 dB
C/Ic –50 dB
‑
for adjacent (600 kHz) interference
C/Ia3
=
C/Ic ‑ 58 dB
C/Ic –58 dB
For 8-PSK modulated speech channels (AMR and AMR-WB), ECSD channels and 8-PSK modulated packet-switched channels, the wanted input signal level shall be: - 93 dBm + Ir + Corr, where:
Ir = the interference ratio according to tables 2b and 2c for packets switched channels, tables 2d and 2e for ECSD and table 2k for speech (AMR and AMR-WB) and associated control channels.
Corr = the correction factor for reference performance according to subclause 6.2
For adjacent channel performance, the wanted input signal level shall be set to the value calculated using the formulas above for co channel performance.
For all classes of MS supporting 8-PSK speech channels, an additional +2 dB adjustment applies for 8-PSK modulated speech channels.
The reference performance is the same as defined in subclause 6.2
The reference performance shall be:
For speech channels (O-TCH/AHSy) FER £ 1%
3GPP TS 45.005, subclauses 6.2, 6.3.
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51.010-1
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14.5.1.4.3 Test purpose
|
To verify that the MS does not exceed conformance requirement for FER and class 1b RBER under TU50 propagation conditions with an allowance for the statistical significance of the test, for channel combinations O-TCH/AHS7.4, O-TCH/AHS6.7.
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51.010-1
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14.5.1.4.4 Method of test
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51.010-1
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14.5.1.4.4.1 Initial conditions
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A call is set up according to the generic call set up procedure on a O-TCH/AHS with an ARFCN in the mid ARFCN range, power control level set to maximum power. RADIO_LINK_TIMEOUT is set to maximum.
The multirate configuration indicates the use of a codec set limited to 7,4 kbit/s.
The SS transmits Standard Test Signal C1 on the traffic channel (wanted signal).
The SS commands the MS to create the traffic channel loop back, signalling erased frames (subclause 36).
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51.010-1
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14.5.1.4.4.2 Procedure
|
a) In addition to the wanted signal, the SS produces an independent, uncorrelated interfering signal, Standard Test Signal I1 (unwanted signal) at a nominal frequency 400KHz above that of the wanted signal. The unwanted signal is continuous and has no fixed relationship with the bit transitions of the wanted signal.
b) The fading characteristic of the wanted and the interfering signals are set to TU50.
c) The SS sets the level of the interfering signal to –27dBm.
d) The SS sets the level of the wanted signal to –77dBm.
e) The SS determines the number of residual bit error events for the bits of the class Ib, by examining sequences of at least the minimum number of samples of consecutive bits of class Ib. Bits are only taken from those frames not signalled as erased.
f) The SS also determines the frame erasure events by examining sequences of at least the minimum number of samples of consecutive frames and assuming a frame is received successfully, if it is not signalled as erased.
g) The SS moves the interfering signal to a nominal frequency 200KHz below that of the wanted signal.
h) The SS sets the level of the interfering signal to –73dBm.
i) The SS uses a Channel Mode Modify procedure to change the active codec set to 6,7 kbit/s.
j) The SS sets the level of the wanted signal to that indicated by Clev in table 14.5.1.4-2 or 14.5.1.4-3.
k) Steps e) to f) are repeated.
Maximum/Minimum Duration of Test
Maximum: 19 minutes (GSM850), 19 minutes (GSM900), 19 minutes (DCS1800), 19 minutes (PCS1900).
Minimum: 14 minutes (GSM850), 13 minutes (GSM900), 7 minutes (DCS1800), 6 minutes (PCS1900).
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51.010-1
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14.5.1.4.5 Test requirements
|
Testing should be performed using statistical methods that lead to an early pass/fail decision with test time significantly reduced for MS with FER/BER not on the limit.
For more information on statistical testing of BER/BLER performance, especially the definition of limit lines refer to Annex 7.
Wrong decision risk F for one single error rate test:
Fpass = Ffail = F and F = 0.2%
Wrong decision probability D per test step:
Dpass = Dfail = D and D = 0.0085%
Parameters for limit lines:
1. D = 0.000085 wrong decision probability per test step.
2. M = 1.5 bad DUT factor
3. ne number of (error) events. This parameter is the x‑ordinate in figure A7.1.3.1.
4. ns number of samples. The error rate is calculated from ne and ns.
Limit checking
Before limit checking is valid the minimum test time due to fading needs to be considered:
Testing under multipath and interference conditions requires that at least 990 wavelengths are crossed with the speed given in the fading profile. This leads to a minimum test time depending on the frequency range. No early pass/fail decision is allowed until the minimum test time due to fading has elapsed.
Table 14.5.1.4-1: Minimum test times due to TU high fading conditions
Half Rate 50 km/h
Frequency
0,85
0,9
1,8
1,9
GHz
Wavelength
0,35
0,33
0,17
0,16
m
min test time
403
380
190
180
s
0:06:43
0:06:20
0:03:10
0:03:00
If the minimum test time due to multipath conditions exceeds the target test time, then the test runs for the minimum test time due to multipath conditions and the decision is made by comparing the result with the “derived test limit”. In this case early pass/fail decisions are obsolete.
If the target test time exceeds the minimum test time due to multipath conditions early pass/fail decisions can be headed for in order to accelerate test execution.
For an early decision a minimum number of (error) events is necessary.
For an early pass decision ne ≥ 1 (inclusive artificial error)
For an early fail decision ne ≥ 7
When the target test time has been reached the test is finished and a pass/fail decision can be made.
The error rate measured in this test shall be tested according to the values given in tables 14.5.1.4-2 and 14.5.1.4.3
Table 14.5.1.4-2: Statistical test limits for T-GSM 810, GSM 850 and GSM 900 O-TCH/AHS adj-chan interference
TU50 / No FH
0.8 to 0.9GHz
Clev (dBm)
Samples per second
Orig. BER requirement
Derived test limit
Target number of samples
Target test time (s)
Target test time (hh:mm:ss)
O-TCH/ AHS 7.4
Frames
n/a
50
0,010000
0,012340
27958
560
00:09:20
Class1b
3950
0,001500
0.001851
186385
48
00:00:48
O-TCH/ AHS 6.7
Frames
-77.5
50
0,010000
0,012340
27958
560
00:09:20
Class1b
3950
0,001500
0.001851
186385
48
00:00:48
Table 14.5.1.4-3: Statistical test limits for DCS 1 800 and PCS 1 900 O-TCH/AHS adj-chan interference
TU50 / No FH
1.8 to 1.9GHz
Clev (dBm)
Samples per second
Orig. BER requirement
Derived test limit
Target number of samples
Target test time (s)
Target test time (hh:mm:ss)
O-TCH/ AHS 7.4
Frames
n/a
50
0,010000
0,012340
27958
560
00:09:20
Class1b
3950
0,001700
0.002098
164442
42
00:00:42
O-TCH/ AHS 6.7
Frames
-78.0
50
0,010000
0,012340
27958
560
00:09:20
Class1b
3950
0,001500
0.001851
186385
48
00:00:48
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51.010-1
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14.5.1.5 O-TCH/WFS
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51.010-1
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14.5.1.5.1 Definition
|
The adjacent channel selectivity is a measure of the capability of the receiver to receive a wanted modulated signal without exceeding a given degradation due to the presence of an unwanted signal in the adjacent channel.
The adjacent channel can be adjacent in the RF spectrum or in time. There are therefore two types of adjacent channel selectivity:
1) Adjacent RF channel selectivity, which is specifically tested in this subclause.
2) Adjacent Time Slot selectivity, which is not tested in this subclause.
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51.010-1
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14.5.1.5.2 Conformance requirement
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The reference interference performance (for co channel, C/Ic, or adjacent channel, C/Ia) in terms of frame erasure, bit error or residual bit error rates (whichever appropriate) is specified in table 2, according to the type of channel and the propagation condition. The actual interference ratio is defined as the interference ratio for which this performance is met. The actual interference ratio shall be less than a specified limit, called the reference interference ratio.
For equipment supporting 8-PSK, and for MS indicating support for Downlink Advanced Receiver Performance – phase I (see 3GPP TS 24.008), the applicable requirements in table 2a, 2b, 2c, 2d, 2e, 2f, 2g, 2h, 2i, 2j, 2k, 2l, 2m, 2n and 2p apply for both GMSK and 8-PSK modulated interfering signals. The corresponding interference ratio for adjacent channel interference shall be:
Modulation of wanted signal
GMSK
8-PSK
‑
for adjacent (200 kHz) interference
C/Ia1
=
C/Ic ‑ 18 dB
See table 2l for speech, see tables 2f, 2g, 2h, 2i and 2n for other channels
‑
for adjacent (400 kHz) interference
C/Ia2
=
C/Ic ‑ 50 dB
C/Ic –50 dB
‑
for adjacent (600 kHz) interference
C/Ia3
=
C/Ic ‑ 58 dB
C/Ic –58 dB
NOTE: The C/Ia3 figure is given for information purposes and will not require testing. It was calculated for the case of an equipment with an antenna connector, operating at output power levels of +33 dBm and below. Rejection of signals at 600 kHz is specified in subclause 5.1.
For 8-PSK modulated speech channels (AMR and AMR-WB), ECSD channels and 8-PSK modulated packet-switched channels, the wanted input signal level shall be: - 93 dBm + Ir + Corr, where:
Ir = the interference ratio according to tables 2b and 2c for packets switched channels, tables 2d and 2e for ECSD and table 2k for speech (AMR and AMR-WB) and associated control channels.
Corr = the correction factor for reference performance according to subclause 6.2
The levels shall be corrected by the following values:
MS, 8-PSK modulated signals
for GSM 400, GSM 900, GSM 850 and GSM 700 small MS
0 dB
for other GSM 400, GSM 900, GSM 850 and GSM 700 MS
-2 dB
for DCS 1 800 and PCS 1900 class 1 or class 2 MS
0 dB
for other DCS 1 800 and PCS 1900 MS
-2 dB
For GMSK modulated speech channels for wideband AMR, and for 8-PSK modulated speech channels for AMR, associated control channels and in band signalling, the minimum input signal level for which the reference performance shall be met is specified in table 1f and 1g respectively for normal BTS, according to the type of channel and the propagation condition. The reference performance shall be:
‑
for speech channels (O-TCH/AHSy, O-TCH/WFSy, O-TCH/WHSy)
FER
:
£ 1%
For other equipment than normal BTS, the levels shall be corrected by the values in the table below, describing the reference performance level correction factors for packet switched channels. Furthermore, for all classes of MS supporting 8-PSK speech channels, an additional +2 dB adjustment applies for 8-PSK modulated speech channels. For T-GSM 810 the requirements for GSM 900 shall apply, apart for those parameters for which a separate requirement exists.
3GPP 45.005 clauses 2, 6.2 and 6.3
NOTE: The tables 1 and 2 mentioned above can be found in 3GPP 45.005 clause 6.7
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51.010-1
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14.5.1.5.3 Test purpose
|
1 To verify that with a TUhigh adjacent channel interferer at 200 kHz above and below the wanted TUhigh signal frequency and the interfering signal at a level resulting in the specified interference ratio the MS does not exceed conformance requirements in tables 14.5.1.5-2/3 with an allowance for the statistical significance of the test.
2. To verify that with a TUhigh adjacent channel interferer at 400 kHz above and below a TUhigh wanted signal frequency and the interfering signal at a level resulting in the specified interference ratio the MS does not exceed conformance requirements in tables 14.5.1.5-2/3 with an allowance for the statistical significance of the test.
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51.010-1
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14.5.1.5.4 Method of test
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51.010-1
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14.5.1.5.4.1 Initial conditions
|
A call is set up according to the generic call set up procedure on a O-TCH/WFS with an ARFCN in the mid ARFCN range, power control level set to maximum power.
The multirate configuration indicates the use of a codec set limited to 15.85 kbit/s.
The SS commands the MS to create the traffic channel loop back signalling erased frames.
The SS transmits Standard Test Signal C1 on the O-TCH (wanted signal) with an amplitude of -93 dBm + Ir + Corr +2 dB, where Ir equals C/Ic in table.14.5.1.5-2/3 and the values for Corr are as stated above.
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51.010-1
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14.5.1.5.4.2 Procedure
|
a) In addition to the wanted signal, the SS transmits an independent, uncorrelated interfering signal, Standard Test Signal I1 (unwanted signal).
The unwanted signal is continuous and has no fixed relationship with the bit transitions of the wanted signal.
The fading characteristic of the wanted and the unwanted signal is set to TUHigh.
The unwanted signal is transmitted at a nominal frequency of 200 kHz above the nominal frequency of the wanted signal. The interference ratio is set to C/Ia1 from table 14.5.1.5-4.
b) The SS compares the data of the signal that it sends to the MS with the signal which is looped back from the receiver after demodulation and decoding, and checks the frame erasure indication.
c) The SS tests the frame erasure compliance for the O-TCH/WFS by examining at least the minimum number of samples of consecutive frames. The number of frame erasure events is recorded.
d) The SS determines the number of residual bit error events for the bits of the class Ib, by examining sequences of at least the minimum number of samples of consecutive bits of class Ib, Bits are only taken from those frames for which no bad frame indication was given.
e) The unwanted signal is moved to a nominal frequency 200 kHz below the nominal frequency of the wanted signal.
f) The SS uses a Channel Mode Modify procedure to change the active codec set to 12.65 kbit/s and the wanted signal level is set accordingly. The interference ratio is set to C/Ia1 from table 14.5.1.5-4 and steps b) to d) are repeated.
g) The unwanted signal is moved to a nominal frequency 400 kHz above the nominal frequency of the wanted signal.
h) The SS uses a Channel Mode Modify procedure to change the active codec set to 8.85 kbit/s and the wanted signal level is set accordingly. The interference ratio is set to (C/Ic - 50dB), i.e. the amplitude of the unwanted signal is set to (50 dB – C/Ic) above that of the wanted signal, (C/Ic is the co-channel interference ratio from table 14.5.1.5-2 and 14.5.1.5-3). Steps b) to d) are repeated.
i) The unwanted signal is moved to a nominal frequency 400 kHz below the nominal frequency of the wanted signal.
j) The SS uses a Channel Mode Modify procedure to change the active codec set to 6.60 kbit/s and the wanted signal level is set accordingly. The interference ratio is set to (C/Ic - 50dB), i.e. the amplitude of the unwanted signal is set to (50 dB – C/Ic) above that of the wanted signal, (C/Ic is the co-channel interference ratio from table 14.5.1.5-2 and 14.5.1.5-3). Steps b) to d) are repeated.
Maximum/Minimum Duration of Test
Maximum: 14 minutes (GSM700, T-GSM 810, GSM850 and GSM900), 7 minutes (DCS1800 and PCS1900).
Minimum: 14 minutes (GSM700, T-GSM 810, GSM850 and GSM900), 7 minutes (DCS1800 and PCS1900).
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51.010-1
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14.5.1.5.5 Test requirements
|
Testing the adjacent channel interference performance is performed using statistical methods that lead to an early pass/fail decision with test time significantly reduced for MS with BER/BLER not on the limit.
For more information on statistical testing of BER/BLER performance, especially the definition of the limit lines refer to Annex 6.2
Wrong decision risk F for one single error ratio test:
Fpass = Ffail = F and F = 0.2%
Wrong decision probability D per test step:
Dpass = Dfail = D and D = 0.0085%
Parameters for limit lines:
1. D = 0.000085 wrong decision probability per test step.
2. M = 1.5 bad DUT factor
3. ne number of (error) events.
4. ns number of samples. The error rate is calculated from ne and ns.
Limit checking
Before limit checking is valid the minimum test time due to fading needs to be considered:
Testing under multipath and interference conditions requires that at least 990 wavelengths are crossed with the speed given in the fading profile. This leads to a minimum test time depending on the frequency range. No early pass/fail decision is allowed until the minimum test time due to fading has elapsed.
Table 14.5.1.5-1: Minimum test times due to TU high fading conditions
Full Rate 50 km/h
Frequency
0,4
0,7
0,85
0,9
1,8
1,9
GHz
Wavelength
0,75
0,43
0,35
0,33
0,17
0,16
m
990 Waves
743
424
349
330
165
156
m
min net test time
53
31
25
24
12
11
s @ 50km/h
min test time
428
244
201
190
95
90
s
0:07:08
0:04:04
0:03:21
0:03:10
0:01:35
0:01:30
hh:mm:ss
If the minimum test time due to multipath conditions exceeds the target test time, then the test runs for the minimum test time due to multipath conditions and the decision is done by comparing the result with the “derived test limit”. In this case early pass/fail decisions are obsolete.
If the target test time exceeds the minimum test time due to multipath conditions early pass/fail decisions can be headed for in order to accelerate test execution.
For an early decision a minimum number of (error) events is necessary.
For an early pass decision ne ≥ 1 (inclusive artificial error)
For an early fail decision ne ≥ 7
When the target test time has been reached the test is finished and a pass/fail decision can be made.
The error rates measured for different channels and under the different propagation conditions, under any combination of normal and extreme test voltages and ambient temperatures, shall be tested according to the values given in table 14.5.1.5-2 or 14.5.1.5-3. Adjacent channel rejection tests with a frequency condition noted as "@‑ndB" are performed for an interference ratio n dB below the reference interference ratio (see 3GPP TS 05.05). Where an entry in the table is ‘-‘, this combination should not be tested.
Table 14.5.1.5-2: Statistical test limits for GSM 710, T-GSM 810, GSM 850 and GSM 900 adjacent channel rejection
TU high no FH,
0.4 to 0.9GHz
C/Ic (dB)
samples
per s
Orig. BER/FER requirement
Derived test limit
Target number of samples
Target test time (s)
Target test time (hh:mm:ss)
WFS15.85
frames
13.5
50
0,010000
0,012340
27958
560
00:09:20
Class1b
12250
0,004500
0,005553
62129
5
00:00:05
WFS12.65
frames
11.5
50
0,010000
0,012340
27958
560
00:09:20
Class1b
9050
0,003500
0,004319
79880
9
00:00:09
WFS 8.85
frames
10.5
50
0,010000
0,012340
27958
560
00:09:20
Class1b
5650
0,003500
0,004319
79880
15
00:00:15
WFS 6.60
frames
9.5
50
0,010000
0,012340
27958
560
00:09:20
Class1b
3900
0,001500
0,001851
186386
48
00:00:48
Table 14.5.1.5-3: Statistical test limits for DCS 1800 and PCS 1900 adjacent channel rejection
TU high no FH
1.8 to 1.9GHz
C/Ic (dB)
samples
per s
Orig. BER/FER requirement
Derived test limit
Target number of samples
Target test time (s)
Target test time
(hh:mm:ss)
WFS15.85
frames
12.0
50
0,010000
0,012340
27958
560
00:09:20
Class1b
12250
0,005000
0,006170
55916
5
00:00:05
WFS12.65
frames
10.5
50
0,010000
0,012340
27958
560
00:09:20
Class1b
9050
0,003600
0,004442
77668
9
00:00:09
WFS 8.85
frames
9.0
50
0,010000
0,012340
27958
560
00:09:20
Class1b
5650
0,004200
0,005183
66564
12
00:00:12
WFS 6.60
frames
8.0
50
0,010000
0,012340
27958
560
00:09:20
Class1b
3900
0,002000
0,002468
139790
36
00:00:36
Table 14.5.1.5-4: Adjacent channel interference ratio C/Ia1 for 8PSK-modulated WB-AMR channels
Type of Channel
GSM 850 and GSM 900
DCS 1 800 & PCS 1 900
Propagation condition
TU50(no FH)
TU50(no FH)
O-TCH/ WFS15.85
dB
-5
-5.5
O-TCH/ WFS12.65
dB
-7
-7.5
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51.010-1
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14.5.1.6 Adjacent channel interference O-TCH/WHS
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683b5b8a98f7b1390ddd5516ea9247a2
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51.010-1
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14.5.1.6.1 Definition
|
-
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683b5b8a98f7b1390ddd5516ea9247a2
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51.010-1
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14.5.1.6.2 Conformance requirement
|
For 8-PSK modulated channels, speech channels (AMR and AMR-WB), the minimum interference ratio for which the reference performance for co channel interference (C/Ic) shall be met is specified in table 2k
The corresponding interference ratio for adjacent channel interference shall be:
Modulation of wanted signal
GMSK
8-PSK
‑
for adjacent (200 kHz) interference
C/Ia1
=
C/Ic ‑ 18 dB
See table 2l for speech, see tables 2f, 2g, 2h, 2i and 2n for other channels
‑
for adjacent (400 kHz) interference
C/Ia2
=
C/Ic ‑ 50 dB
C/Ic –50 dB
‑
for adjacent (600 kHz) interference
C/Ia3
=
C/Ic ‑ 58 dB
C/Ic –58 dB
For 8-PSK modulated speech channels (AMR and AMR-WB), ECSD channels and 8-PSK modulated packet-switched channels, the wanted input signal level shall be: - 93 dBm + Ir + Corr, where:
Ir = the interference ratio according to tables 2b and 2c for packets switched channels, tables 2d and 2e for ECSD and table 2k for speech (AMR and AMR-WB) and associated control channels.
Corr = the correction factor for reference performance according to subclause 6.2
The levels shall be corrected by the following values:
MS, 8-PSK modulated signals
for GSM 400, GSM 900, GSM 850 and GSM 700 small MS
0 dB
for other GSM 400, GSM 900, GSM 850 and GSM 700 MS
-2 dB
for DCS 1 800 and PCS 1900 class 1 or class 2 MS
0 dB
for other DCS 1 800 and PCS 1900 MS
-2 dB
For adjacent channel performance, the wanted input signal level shall be set to the value calculated using the formulas above for co channel performance.
For all classes of MS supporting 8-PSK speech channels, an additional +2 dB adjustment applies for 8-PSK modulated speech channels.
The reference performance is the same as defined in subclause 6.2
The reference performance shall be:
For speech channels (O-TCH/WHSy) FER £ 1%
3GPP TS 45.005, subclauses 6.2, 6.3.
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683b5b8a98f7b1390ddd5516ea9247a2
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51.010-1
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14.5.1.6.3 Test purpose
|
To verify that the MS does not exceed conformance requirement for FER and class 1b RBER under TU50 propagation conditions with an allowance for the statistical significance of the test, for channel combinations O-TCH/WHS8.85, O-TCH/WHS6.6.
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683b5b8a98f7b1390ddd5516ea9247a2
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51.010-1
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14.5.1.6.4 Method of test
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683b5b8a98f7b1390ddd5516ea9247a2
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51.010-1
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14.5.1.6.4.1 Initial conditions
|
A call is set up according to the generic call set up procedure on a O-TCH/WHS with an ARFCN in the mid ARFCN range, power control level set to maximum power. RADIO_LINK_TIMEOUT is set to maximum.
The multirate configuration indicates the use of a codec set limited to 8,85 kbit/s.
The SS transmits Standard Test Signal C1 on the traffic channel (wanted signal) with an amplitude of -93 dBm + Ir + Corr +2 dB, where Ir equals C/Ic in table. 14.5.1.6-2 and the values for Corr are as stated above.
The SS commands the MS to create the traffic channel loop back, signalling erased frames (subclause 36).
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683b5b8a98f7b1390ddd5516ea9247a2
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51.010-1
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14.5.1.6.4.2 Procedure
|
a) In addition to the wanted signal, the SS produces an independent, uncorrelated interfering signal, Standard Test Signal I1 (unwanted signal) at a nominal frequency 400KHz above that of the wanted signal. The unwanted signal is continuous and has no fixed relationship with the bit transitions of the wanted signal.
b) The fading characteristic of the wanted and the interfering signals are set to TU50.
c) The interference ratio is set to (C/Ic - 50dB), i.e. the amplitude of the unwanted signal is set to (50 dB – C/Ic) above that of the wanted signal, (C/Ic is the co-channel interference ratio from table 14.5.1.6-2).
d) The SS determines the number of residual bit error events for the bits of the class Ib, by examining sequences of at least the minimum number of samples of consecutive bits of class Ib. Bits are only taken from those frames not signalled as erased.
e) The SS also determines the frame erasure events by examining sequences of at least the minimum number of samples of consecutive frames and assuming a frame is received successfully, if it is not signalled as erased.
f) The SS moves the interfering signal to a nominal frequency 200KHz below that of the wanted signal.
g) The SS uses a Channel Mode Modify procedure to change the active codec set to 6,6 kbit/s.
h) The SS sets the level of the wanted signal accordingly.
i) The interference ratio is set to C/Ia1 from table 14.5.1.6-2.
j) Steps d) to e) are repeated.
Maximum/Minimum Duration of Test
Maximum: 19 minutes (GSM850), 19 minutes (GSM900), 19 minutes (DCS1800), 19 minutes (PCS1900).
Minimum: 14 minutes (GSM850), 13 minutes (GSM900), 7 minutes (DCS1800), 6 minutes (PCS1900).
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51.010-1
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14.5.1.6.5 Test requirements
|
Testing should be performed using statistical methods that lead to an early pass/fail decision with test time significantly reduced for MS with FER/BER not on the limit.
For more information on statistical testing of BER/BLER performance, especially the definition of limit lines refer to Annex 7.
Wrong decision risk F for one single error rate test:
Fpass = Ffail = F and F = 0.2%
Wrong decision probability D per test step:
Dpass = Dfail = D and D = 0.0085%
Parameters for limit lines:
1. D = 0.000085 wrong decision probability per test step.
2. M = 1.5 bad DUT factor
3. ne number of (error) events. This parameter is the x‑ordinate in figure A7.1.3.1.
4. ns number of samples. The error rate is calculated from ne and ns.
Limit checking
Before limit checking is valid the minimum test time due to fading needs to be considered:
Testing under multipath and interference conditions requires that at least 990 wavelengths are crossed with the speed given in the fading profile. This leads to a minimum test time depending on the frequency range. No early pass/fail decision is allowed until the minimum test time due to fading has elapsed.
Table 14.5.1.6-1: Minimum test times due to TU high fading conditions
Half Rate 50 km/h
Frequency
0,85
0,9
1,8
1,9
GHz
Wavelength
0,35
0,33
0,17
0,16
M
min test time
403
380
190
180
S
0:06:43
0:06:20
0:03:10
0:03:00
If the minimum test time due to multipath conditions exceeds the target test time, then the test runs for the minimum test time due to multipath conditions and the decision is made by comparing the result with the “derived test limit”. In this case early pass/fail decisions are obsolete.
If the target test time exceeds the minimum test time due to multipath conditions early pass/fail decisions can be headed for in order to accelerate test execution.
For an early decision a minimum number of (error) events is necessary.
For an early pass decision ne ≥ 1 (inclusive artificial error)
For an early fail decision ne ≥ 7
When the target test time has been reached the test is finished and a pass/fail decision can be made.
The error rate measured in this test shall be tested according to the values given in tables 14.5.1.6-2 and 14.5.1.6.3
Table 14.5.1.6-2: Statistical test limits for GSM 850 and GSM 900 O-TCH/WHS adj-chan interference
TU high no FH
C/Ia1 (dB)
C/Ic (dB)
Samples per second
Orig. BER requirement
Derived test limit
Target number of samples
Target test time (s)
Target test time (hh:mm:ss)
O-TCH/ WHS 8.85
Frames
-
15.0
50
0,010000
0,012340
27958
560
00:09:20
Class1b
5650
0,001100
0,001357
254237
45
00:00:45
O-TCH/ WHS 6.60
Frames
-5.0
13.5
50
0,010000
0,012340
27958
560
00:09:20
Class1b
3900
0,001500
0,001851
186386
48
00:00:48
Table 14.5.1.6-3: Statistical test limits for DCS 1 800 and PCS 1 900 O-TCH/WHS adj-chan interference
TU high no FH
C/Ia1 (dB)
C/Ic (dB)
Samples per second
Orig. BER requirement
Derived test limit
Target number of samples
Target test time (s)
Target test time (hh:mm:ss)
O-TCH/ WHS 8.85
Frames
-
14.5
50
0,010000
0,012340
27958
560
00:09:20
Class1b
5650
0,001200
0, 001481
232951
42
00:00:42
O-TCH/ WHS 6.60
Frames
-5.0
13.0
50
0,010000
0,012340
27958
560
00:09:20
Class1b
3900
0,001600
0,001974
174772
45
00:00:45
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14.5.1.7 TCH/WFS Adjacent Channel Interference
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14.5.1.7.1 Definition
|
The adjacent channel selectivity is a measure of the capability of the receiver to receive a wanted modulated signal without exceeding a given degradation due to the presence of an unwanted signal in the adjacent channel.
The adjacent channel can be adjacent in the RF spectrum or in time. There are therefore two types of adjacent channel selectivity:
1) Adjacent RF channel selectivity, which is specifically tested in this subclause.
2) Adjacent Time Slot selectivity, which is not tested in this subclause.
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14.5.1.7.2 Conformance requirement
|
At reference adjacent channel interference the TCH/WFS class Ib BER shall meet the reference interference performance of table 2j in 3GPP TS 45.005 subclause 6.3.
At reference adjacent channel interference the TCH/WFS FER shall meet the reference performance stated in 3GPP TS 45.005 subclause 6.2.
The reference performance shall be:
For speech channels (TCH/WHSy) FER £ 1%
The performance requirements for GSM 400 and GSM 700 systems are as for GSM 900 in table 2j, except that the GSM 400 MS speed is doubled from that of GSM 900, e.g. TU50 becomes TU100, and the GSM 700 MS speed is increased by a factor of 1.2, e.g. TU50 becomes TU60.
For packet switched and AMR-WB speech, GMSK modulated channels the wanted input signal level shall be: -93 dBm + Ir + Corr, where:
Ir = the interference ratio according to table 2a and table 2j for the packet switched and AMR-WB speech channels respectively
Corr = the correction factor for reference performance according to subclause 3GPP TS 45.005 subclause 6.2.
The corresponding interference ratio for adjacent channel interference shall be:
Modulation of wanted signal
GMSK
‑
for adjacent (200 kHz) interference
C/Ia1
=
C/Ic ‑ 18 dB
‑
for adjacent (400 kHz) interference
C/Ia2
=
C/Ic ‑ 50 dB
For T-GSM 810 the requirements for GSM 900 shall apply, apart for those parameters for which a separate requirement exists.
Reference: 3GPP TS 45.005 Subclause 2, 6.3
The levels shall be corrected by the following values:
MS, GMSK modulated signals
‑
for DCS 1 800 class 1 or class 2 MS
+2/+4 dB**
‑
for DCS 1 800 class 3 MS
+2 dB
‑
for GSM 400 small MS, GSM 900 small MS GSM 850 small MS and GSM 700 small MS
+2 dB
‑
for other GSM 400, GSM 900 MS and GSM 850 MS and GSM 700 MS
0 dB
for PCS 1900 class 1 or class 2 MS
+2 dB
for other PCS 1900 MS
0 dB
**NOTE: For DCS 1 800 class 1 and class 2 MS, a correction offset of +2dB shall apply for the reference sensitivity performance as specified in table 1a for the normal conditions defined in Annex D and an offset of +4 dB shall be used to determine all other MS performances.
3GPP TS 45.005 Subclause 6.2
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14.5.1.7.3 Test purpose
|
To verify that with an adjacent channel interferer at 200 kHz and at 400kHz above and below the wanted signal the MS does not exceed conformance requirements in tables 14.5.1.7-3/4 for three given codec rates under propagation condition TUhigh (for GSM 400, GSM 700, T-GSM 810, GSM 850, GSM 900, DCS 1800 and PCS 1900) with no frequency hopping, with an allowance for the statistical significance of the test.
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14.5.1.7.4 Method of Test
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14.5.1.7.4.1 Initial conditions
|
A call is set up according to the generic call set up procedure on TCH/WFS with an ARFCN in the mid ARFCN range, power control level set to maximum power.
The multirate configuration indicates the use of a codec set limited to 12.65 kbit/s.
The SS commands the MS to create the traffic channel loop back signalling erased frames.
The SS transmits Standard Test Signal C1 on the TCH (wanted signal) with an amplitude of -93 dBm + Ir + Corr, where Ir equals C/Ic in table.14.5.1.7-2 and the values for Corr are as stated above
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14.5.1.7.4.2 Procedure
|
a) In addition to the wanted signal, the SS transmits an independent, uncorrelated interfering signal, Standard Test Signal I1 (unwanted signal).
The unwanted signal is continuous and has no fixed relationship with the bit transitions of the wanted signal.
The interference ratio shall be set to (C/Ic – 18 dB) for adjacent channel interference of 200 kHz and (C/Ic - 50 dB) for adjacent channel interference of 400 kHz respectively. The co-channel interference values C/Ic can be found in table 14.5.1.7-2.
The fading characteristic of the wanted and the unwanted signal is set to TUHigh.
The unwanted signal is transmitted at a nominal frequency of 200 kHz above the nominal frequency of the wanted signal. The interference ratio is set to (C/Ic – 18 dB), i.e. the amplitude of the unwanted signal is set to (18 dB – C/Ic) above that of the wanted signal.
b) The SS compares the data of the signal that it sends to the MS with the signal which is looped back from the receiver after demodulation and decoding, and checks the frame erasure indication.
c) The SS tests the frame erasure compliance for the TCH/WFS by examining at least the minimum number of samples of consecutive frames. The number of frame erasure events is recorded.
d) The SS determines the number of residual bit error events for the bits of the class Ib, by examining sequences of at least the minimum number of samples of consecutive bits of class Ib, Bits are only taken from those frames for which no bad frame indication was given.
e) The unwanted signal is moved to a nominal frequency of 200 kHz below the nominal frequency of the wanted signal. The interference ratio is set to (C/Ic – 18 dB), i.e. the amplitude of the unwanted signal is set to (18 dB – C/Ic) above that of the wanted signal.
f) The SS uses a Channel Mode Modify procedure to change the active codec set to 8.85 kbit/s. The wanted signal level is set accordingly and steps b) to d) are repeated.
g) The unwanted signal is moved to a nominal frequency of 400 kHz above the nominal frequency of the wanted signal. The interference ratio is set to (C/Ic – 50 dB), i.e. the amplitude of the unwanted signal is set to (50 dB – C/Ic) above that of the wanted signal.
h) The SS uses a Channel Mode Modify procedure to change the active codec set to 6.60 kbit/s. The wanted signal level is set accordingly and steps b) to d) are repeated.
i) The unwanted signal is moved to a nominal frequency of 400 kHz below the nominal frequency of the wanted signal. The interference ratio is set to (C/Ic – 50 dB), i.e. the amplitude of the unwanted signal is set to (50 dB – C/Ic) above that of the wanted signal. Steps b) to d) are repeated.
Maximum/Minimum Duration of Test
Maximum: 5 minutes (GSM850, GSM900), 23 minutes (DCS1800, PCS1900).
Minimum: 2 minutes (GSM850, GSM900), 4 minutes (DCS1800, PCS1900).
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14.5.1.7.5 Test requirements
|
Testing the adjacent channel interference performance is performed using statistical methods that lead to an early pass/fail decision with test time significantly reduced for MS with BER/BLER not on the limit.
For more information on statistical testing of BER/BLER performance, especially the definition of the limit lines refer to Annex 6.2
Wrong decision risk F for one single error ratio test:
Fpass = Ffail = F and F = 0.2%
Wrong decision probability D per test step:
Dpass = Dfail = D and D = 0.0085%
Parameters for limit lines:
1. D = 0.000085 wrong decision probability per test step.
2. M = 1.5 bad DUT factor
3. ne number of (error) events.
4. ns number of samples. The error rate is calculated from ne and ns.
Limit checking
Before limit checking is valid the minimum test time due to fading needs to be considered:
Testing under multipath and interference conditions requires that at least 990 wavelengths are crossed with the speed given in the fading profile. This leads to a minimum test time depending on the frequency range. No early pass/fail decision is allowed until the minimum test time due to fading has elapsed.
Table 14.5.1.7-1: Minimum test times due to TU high fading conditions
Frequency
0,4
0,7
0,85
0,9
1,8
1,9
GHz
Wavelength
0,75
0,43
0,35
0,33
0,17
0,16
m
min test time
428
244
201
190
95
90
s
0:07:08
0:04:04
0:03:21
0:03:10
0:01:35
0:01:30
hh:mm:ss
If the minimum test time due to multipath conditions exceeds the target test time, then the test runs for the minimum test time due to multipath conditions and the decision is done by comparing the result with the “derived test limit”. In this case early pass/fail decisions are obsolete.
If the target test time exceeds the minimum test time due to multipath conditions early pass/fail decisions can be headed for in order to accelerate test execution.
For an early decision a minimum number of (error) events is necessary.
For an early pass decision ne ≥ 1 (inclusive artificial error)
For an early fail decision ne ≥ 7
When the target test time has been reached the test is finished and a pass/fail decision can be made.
Table 14.5.1.7-2: Co-channel interference ratio C/Ic for GMSK-modulated WB-AMR channels
Type of Channel
GSM 850 and GSM 900
DCS 1 800 & PCS 1 900
Propagation condition
TU50(no FH)
TU50(no FH)
TCH/ WFS12.65
dB
14.5
13.0
TCH/ WFS8.85
dB
11.5
10.0
TCH/ WFS6.60
dB
10.5
9.0
Table 14.5.1.7-3: Statistical test limits for GSM 700, T-GSM 810, GSM 850 and GSM 900 adjacent channel rejection
0.4 to 0.9GHz
frames per s
Orig. BER
Derived
Target number
Target test
Target test time
Channel
bits per sec
clas1b per s
requirement
test limit
of samples
time (s)
(hh:mm:ss)
WFS 12.65
frames
12650
50
0.010000
0.012340
27958
560
00:09:20
Class1b
12650
9050
0,004000
0,004936
69895
8
00:00:08
WFS 8.85
frames
8850
50
0,010000
0,012340
27958
560
00:09:20
Class1b
8850
5650
0,004200
0,005183
66566
12
00:00:12
WFS 6.60
frames
6600
50
0,010000
0,012340
27958
560
00:09:20
Class1b
6600
3900
0,001600
0,001974
174737
45
00:00:45
Table 14.5.1.7-3: Statistical test limits for DCS 1 800 and PCS 1 900 adjacent channel rejection
TU high no FH
1.8 and 1.9GHz
frames per s
Orig. BER
Derived
Target number
Target test
Target test time
Channel
bits per sec
clas1b per s
requirement
test limit
of samples
time (s)
(hh:mm:ss)
WFS 12.65
frames
12650
50
0,010000
0,012340
27958
560
00:09:20
Class1b
12650
9050
0,006300
0,007774
44378
5
00:00:05
WFS 8.85
frames
8850
50
0,010000
0,012340
27958
560
00:09:20
Class1b
8850
5650
0,006400
0,007898
43684
8
00:00:08
WFS 6.60
frames
6600
50
0,010000
0,012340
27958
560
00:09:20
Class1b
6600
3900
0,002700
0,003332
103548
27
00:00:27
14.5.1.7a Adjacent Channel Interference - TCH/WFS in TIGHTER configuration
14.5.1.7a.1 Definition
The adjacent channel selectivity is a measure of the capability of the receiver to receive a wanted modulated signal without exceeding a given degradation due to the presence of an unwanted signal in the adjacent channel.
The adjacent channel can be adjacent in the RF spectrum or in time. There are therefore two types of adjacent channel selectivity:
1) Adjacent RF channel selectivity, which is specifically tested in this subclause.
2) Adjacent Time Slot selectivity, which is not tested in this subclause.
14.5.1.7a.2 Conformance requirement
3GPP TS 45.005 subclause 6.3.3
Table 6.3-1a: Reference interference ratio requirements in adjacent channels for Packet-switched (Normal symbol-rate), Enhanced circuit-switched data, Wideband AMR and 8-PSK modulated AMR channels, speech and associated control channels in VAMOS mode, TIGHTER – MS
Modulation of wanted signal
GMSK
8-PSK
16-QAM
32-QAM
AQPSK
for adjacent (200 kHz) interference
C/Ia1 =
C/Ic ‑ 18 dB, see table 2af for TIGHTER MS
See table 2l for speech, see tables 2g, 2i, 2n and 2w for other channels, see table 2af for TIGHTER MS
See table 2w, see table 2af for TIGHTER MS
See table
2w, see table 2af for TIGHTER MS
See table 2aa and 2ab
for adjacent (400 kHz) interference
C/Ia2 =
C/Ic ‑ 50 dB
C/Ic - 50 dB
C/Ic - 48 dB
C/Ic - 48 dB
[Note 1]
for adjacent (600 kHz) interference
C/Ia3 =
C/Ic ‑ 58 dB
C/Ic - 58 dB
NOTE 1: The adjacent channel interference @ 400 kHz requirement (C/Ia2) does not apply to channels in VAMOS mode.
NOTE: The C/Ia3 figure is given for information purposes and will not require testing. It was calculated for the case of an equipment with an antenna connector, operating at output power levels of +33 dBm and below. Rejection of signals at 600 kHz is specified in subclause 5.1.
3GPP TS 45.005 subclause 6.3.4
For all adjacent channel (200 kHz) requirements specified in table 2af for TIGHTER MS, the wanted signal level shall be: -75 dBm + Iar + Corr, where:
Iar = the adjacent channel (200 kHz) interference ratio according to table 2af
Corr = the correction factor for reference performance according to table 6.2-4.
14.5.1.7a.3 Test purpose
To verify that with an adjacent channel interferer at 200 kHz above and below the wanted signal the MS does not exceed conformance requirements in tables 14.5.1.7a-3/4 for three given codec rates under propagation condition TUhigh (for GSM 850, GSM 900, DCS 1800 and PCS 1900) with no frequency hopping, with an allowance for the statistical significance of the test.
14.5.1.7a.4 Method of Test
14.5.1.7a.4.1 Initial conditions
A call is set up according to the generic call set up procedure on TCH/WFS with an ARFCN in the mid ARFCN range, power control level set to maximum power.
The multirate configuration indicates the use of a codec set limited to 12.65 kbit/s.
The SS commands the MS to create the traffic channel loop back signalling erased frames.
The SS transmits Standard Test Signal C1 on the TCH (wanted signal) with an amplitude of -75 dBm + Iar + Corr, where Iar can be found in table.14.5.1.7a-2 and the values for Corr are as stated above.
14.5.1.7a.4.2 Procedure
a) The fading characteristic of the wanted and the unwanted signal is set to TUHigh.
In addition to the wanted signal, the SS transmits an independent, uncorrelated interfering signal, Standard Test Signal I1 (unwanted signal).
The unwanted signal is continuous and has no fixed relationship with the bit transitions of the wanted signal.
The unwanted signal is transmitted at a nominal frequency 200 kHz above the nominal frequency of the wanted signal. Its amplitude is set according to the specified reference interference ratio as in table 14.5.1.7a-2.
b) The SS compares the data of the signal that it sends to the MS with the signal which is looped back from the receiver after demodulation and decoding, and checks the frame erasure indication.
c) The SS tests the frame erasure compliance for the TCH/WFS by examining at least the minimum number of samples of consecutive frames. The number of frame erasure events is recorded.
d) The SS determines the number of residual bit error events for the bits of the class Ib, by examining sequences of at least the minimum number of samples of consecutive bits of class Ib, Bits are only taken from those frames for which no bad frame indication was given.
e) The unwanted signal is moved to a nominal frequency of 200 kHz below the nominal frequency of the wanted signal. Its amplitude is set according to the specified reference interference ratio as in table 14.5.1.7a-2.
f) The SS uses a Channel Mode Modify procedure to change the active codec set to 8.85 kbit/s. The wanted signal level is set accordingly and steps b) to d) are repeated.
g) The unwanted signal is moved to a nominal frequency of 400 kHz above the nominal frequency of the wanted signal. The interference ratio is set to (C/Ic – 50 dB), i.e. the amplitude of the unwanted signal is set to (50 dB – C/Ic) above that of the wanted signal. The co-channel interference values C/Ic can be found in table 14.5.1.7a-3.
h) The SS uses a Channel Mode Modify procedure to change the active codec set to 6.60 kbit/s. The wanted signal level is set accordingly and steps b) to d) are repeated.
i) The unwanted signal is moved to a nominal frequency of 400 kHz below the nominal frequency of the wanted signal. The interference ratio is set to (C/Ic – 50 dB), i.e. the amplitude of the unwanted signal is set to (50 dB – C/Ic) above that of the wanted signal. Steps b) to d) are repeated. The co-channel interference values C/Ic can be found in table 14.5.1.7a-3.
Maximum/Minimum Duration of Test
Maximum: 5 minutes (GSM850, GSM900), 23 minutes (DCS1800, PCS1900).
Minimum: 2 minutes (GSM850, GSM900), 4 minutes (DCS1800, PCS1900).
14.5.1.7a.5 Test requirements
Testing the adjacent channel interference performance is performed using statistical methods that lead to an early pass/fail decision with test time significantly reduced for MS with BER/BLER not on the limit.
For more information on statistical testing of BER/BLER performance, especially the definition of the limit lines refer to Annex 6.2
Limit checking
Before limit checking is valid the minimum test time due to fading needs to be considered:
Table 14.5.1.7a-1: Minimum test times due to TU high fading conditions
Frequency
0,4
0,7
0,85
0,9
1,8
1,9
GHz
Wavelength
0,75
0,43
0,35
0,33
0,17
0,16
m
min test time
428
244
201
190
95
90
s
0:07:08
0:04:04
0:03:21
0:03:10
0:01:35
0:01:30
hh:mm:ss
The error rates measured for different channels shall be tested according to the values given in table 14.5.1.7a-4 or 14.5.1.7a-5.
Table 14.5.1.7a-2: Adjacent channel interference ratio Iar for GMSK-modulated WB-AMR channels and TIGHTER (acc. TS 45.005 table 2af)
Type of Channel
GSM 850 and GSM 900
DCS 1 800 & PCS 1 900
Propagation condition
TU50(no FH)
TU50(no FH)
TCH/ WFS12.65
dB
-17.5
-19.0
TCH/ WFS8.85
dB
-20.5
-22.0
TCH/ WFS6.60
dB
-21.5
-23.0
Table 14.5.1.7a-3: Co-channel interference ratio C/Ic for GMSK-modulated WB-AMR channels (acc. TS 45.005 table 2j)
Type of Channel
GSM 850 and GSM 900
DCS 1 800 & PCS 1 900
Propagation condition
TU50(no FH)
TU50(no FH)
TCH/ WFS12.65
dB
14.5
13.0
TCH/ WFS8.85
dB
11.5
10.0
TCH/ WFS6.60
dB
10.5
9.0
Table 14.5.1.7a-4: Statistical test limits for GSM 700, T-GSM 810, GSM 850 and GSM 900 adjacent channel rejection
TU high no FH
0.4 to 0.9GHz
frames per s
Orig. BER
Derived
Target number
Target test
Target test time
Channel
bits per sec
clas1b per s
requirement
test limit
of samples
time (s)
(hh:mm:ss)
WFS 12.65
Frames
12650
50
0.010000
0.012340
27958
560
00:09:20
Class1b
12650
9050
0,004000
0,004936
69895
8
00:00:08
WFS 8.85
Frames
8850
50
0,010000
0,012340
27958
560
00:09:20
Class1b
8850
5650
0,004200
0,005183
66566
12
00:00:12
WFS 6.60
Frames
6600
50
0,010000
0,012340
27958
560
00:09:20
Class1b
6600
3900
0,001600
0,001974
174737
45
00:00:45
Table 14.5.1.7a-5: Statistical test limits for DCS 1800 and PCS 1900 adjacent channel rejection
TU high no FH
1.8 and 1.9GHz
frames per s
Orig. BER
Derived
Target number
Target test
Target test time
Channel
bits per sec
clas1b per s
requirement
test limit
of samples
time (s)
(hh:mm:ss)
WFS 12.65
Frames
12650
50
0,010000
0,012340
27958
560
00:09:20
Class1b
12650
9050
0,006300
0,007774
44378
5
00:00:05
WFS 8.85
Frames
8850
50
0,010000
0,012340
27958
560
00:09:20
Class1b
8850
5650
0,006400
0,007898
43684
8
00:00:08
WFS 6.60
Frames
6600
50
0,010000
0,012340
27958
560
00:09:20
Class1b
6600
3900
0,002700
0,003332
103548
27
00:00:27
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.5.2 Adjacent channel rejection - control channels
| |
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.5.2.1 Definition
|
The adjacent channel selectivity is a measure of the capability of the receiver to receive a wanted modulated signal without exceeding a given degradation due to the presence of an unwanted signal in the adjacent channel.
The adjacent channel can be the adjacent in the RF spectrum or in time. There are therefore two types of adjacent channel selectivity:
1) Adjacent RF channel selectivity which is specifically tested in this subclause.
2) Adjacent Time Slot selectivity, which is implicitly tested in test 14.2.1.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.5.2.2 Conformance requirement
|
1. For adjacent channel interference at 200 kHz above and below the wanted signal frequency and signal level 9 dB above the wanted signal level:
1.1 For a TUhigh faded wanted signal and a TUhigh adjacent channel interferer, the FER for the FACCH/F does not exceed the requirements of table 2 in 3GPP TS 05.05 subclause 6.3.
1.2 For a TUhigh faded wanted signal and a TUhigh adjacent channel interferer, the FER for the FACCH/F does not exceed the requirements of table 2 in 3GPP TS 05.05 under extreme test conditions; 3GPP TS 05.05 subclause 6.3, annex D subclauses D.2.1and D.2.2.
2. For adjacent channel interference at 400 kHz above and below the wanted signal frequency and signal level 41 dB above the wanted signal level:
2.1 For a TUhigh faded wanted signal and a TUhigh adjacent channel interferer, the FER for the FACCH/F does not exceed the requirements of table 2 in 3GPP TS 05.05 subclause 6.3.
2.2 For a TUhigh faded wanted signal and a TUhigh adjacent channel interferer, the FER for the FACCH/F does not exceed the requirements of table 2 in 3GPP TS 05.05 under extreme test conditions; 3GPP TS 05.05 subclause 6.3, annex D subclauses D.2.1and D.2.2.
If a system simulator does not support the faded interferer, a static adjacent interferer has to be used. The following requirements apply;
2 :
2. 3 For a TUhigh faded wanted signal and a static adjacent channel interferer, the FER for the FACCH/F shall be better than:
GSM 400, GSM 700, GSM 850 and GSM 900: 17,1 %; 3GPP TS 05.05, subclause 6.3;
DCS 1 800 and PCS 1 900: 6,1 %; 3GPP TS 05.05, subclause 6.3.
2. 4 For a TUhigh faded wanted signal and a static adjacent channel interferer, the FACCH/F shall be better than:
GSM 400, GSM 700, GSM 850 and GSM 900: 17,1 %;
DCS 1 800 and PCS 1 900: 6,1 %.
under extreme test conditions; 3GPP TS 05.05, subclause 6.3, annex D subclauses D.2.1 and D.2.2.
3GPP TS 45.05 subclause 2:
For T-GSM 810 the requirements for GSM 900 shall apply, apart for those parameters for which a separate requirement exists.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.5.2.3 Test purpose
| |
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
1 To verify that with TUhigh adjacent channel interference at 200 kHz above and below a TUhigh wanted signal frequency and signal level 9 dB above the wanted signal level:
|
1.1 Conformance requirement 1.1 is met with an allowance for the statistical significance of the test.
1.2 Conformance requirement 1.2 is met with an allowance for the statistical significance of the test.
2. To verify that with TUhigh or static adjacent channel interference at 400 kHz above and below a TUhigh wanted signal frequency and signal level 41 dB above the wanted signal level:
2.1 Conformance requirement 2.1 or 2.3 is met with an allowance for the statistical significance of the test.
2.2 Conformance requirement 2.2 or 2.4 is met with an allowance for the statistical significance of the test.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.5.2.4 Method of test
| |
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.5.2.4.1 Initial conditions
|
A call is set up according to the generic call set up procedure on a TCH/F in the mid ARFCN range. Any one of the supported TCH/(F9,6, F4,8, or F2,4) or TCH (Signalling Only) shall be used.
The SS transmits the Standard Test Signal C1 on the TCH (wanted signal).
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.5.2.4.2 Procedure
|
a) In addition to the wanted signal, the SS transmits an independent, uncorrelated interfering signal, Standard Test Signal I1 (unwanted signal).
The unwanted signal is continuous and has no fixed relationship with the bit transitions of the wanted signal. The fading characteristic of the wanted and the unwanted signal is TUhigh.
The unwanted signal is transmitted at a nominal frequency 200 kHz above the nominal frequency of the wanted signal. Its amplitude is set to 9dB above that of the wanted signal.
b) The SS sends a Layer 3 message which does not require a Layer 3 response from the MS. Due to the adjacent channel interference, the MS may not be able to acknowledge the Layer 2 frame. Each repeated L2 frame indicates a frame erasure event. The SS determines the number of frame erasure events during at least the minimum number of samples of FACCH/F frames.
NOTE: These frames will not be consecutive but it is expected that the statistical significance of the tests will not be unduly degraded.
c) The measurement of step b) is repeated with the unwanted signal on a frequency at the same displacement from, but below, the frequency of the wanted signal.
d) The measurement of steps a) to c) is repeated for a displacement of the unwanted signal of 400 kHz, and with the amplitude of the unwanted signal 41 dB above the level of the wanted input signal. The fading characteristic of the unwanted signal is set to TUhigh. If, due to system simulator limitation, fading is not possible
a static interferer may be used. Different test limits apply (see table 14-23).
e) Steps a) to d) are repeated under extreme test conditions.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.5.2.5 Test requirements
|
Table 14-23: Limits for adjacent channel selectivity
Interference at
Channel
Type of measurement
Test limit error rate %
Minimum No. of samples
Test limit error rate %
Minimum No. of samples
200 kHz/400 kHz
interferer faded
FACCH/F
FER
10,640
5 639
3,808
15 756
400 kHz interferer static
FACCH/F
FER
19,152
3 133
6,832
8 782
The error rates measured in this test shall not exceed the test limit error rates given in table 14-23. This shall apply for any combination of normal and extreme test voltages and ambient temperature, and with the interfering signals at either side of the wanted frequency.
NOTE: A static unwanted signal may be used to avoid a potential problem with the noise floor of the fading simulator.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.6 Intermodulation rejection
| |
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.6.1 Intermodulation rejection - speech channels
| |
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.6.1.1 Definition
|
The intermodulation rejection is a measure of the capability of the receiver to receive a wanted modulated signal without exceeding a given degradation due to the presence of two or more unwanted signals with a specific frequency relationship to the wanted signal frequency.
For E-GSM 900, R-GSM 900 and ER-GSM 900 MS this test is only performed in the P-GSM band.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.6.1.2 Conformance requirement
|
In the presence of two unwanted signals with a specific frequency relationship to the wanted signal frequency the Class II RBER for TCH/FS shall meet the reference sensitivity performance of table 1 in 3GPP TS 05.05 subclause 5.3.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.6.1.3 Test purpose
|
To verify that the MS does not exceed the conformance requirement with an allowance for the statistical significance of the test.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.6.1.4 Method of test
|
NOTE: The measurements address the third order intermodulation, which represents the most serious case.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.6.1.4.1 Initial conditions
|
A call is set up according to the generic call set up procedure on a TCH with an ARFCN in the Mid ARFCN range, power control level set to maximum power.
The SS transmits Standard Test Signal C1 on the traffic channel.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.6.1.4.2 Procedure
|
a) The amplitude of the wanted signal is set to 4 dB above the reference sensitivity level (see table 14-24).
b) The SS commands the MS to create the loop back facility signalling erased frames.
c) The SS produces a static wanted signal, and two static interfering (unwanted) signals at the same time. There is no correlation in the modulation between the signals.
The first interfering signal is on a frequency equal to the centre frequency of an ARFCN four above that of the receiver. This signal is static and unmodulated.
The second interfering signal is on an ARFCN eight above that of the receiver. This signal is static, continuous and modulated by random data.
The amplitude of both the interfering signals is set according to table 14-24.
d) The SS compares the data of the signal that it sends to the MS with the signal which is looped back from the receiver after demodulation and decoding, and checks the frame erasure indication.
The SS tests the RBER compliance of class II bits by examining at least the minimum number of samples of consecutive bits. Bits only taken from those frames which do not signal frame erasure. The number of error events is recorded.
e) The measurement of step d) is repeated with the two unwanted signals having frequencies corresponding to ARFCN four and eight below the ARFCN of the wanted signal.
f) Steps b) to e), are repeated but with the receiver operating on an ARFCN in the Low ARFCN range.
g) Steps b) to e), are repeated but with the receiver operating on an ARFCN in the High ARFCN range.
h) Steps a) to g) are repeated under extreme test conditions.
Table 14-24: Intermodulation test signal levels
GSM 400, GSM 700,
T-GSM 810,
GSM 850 and GSM 900
DCS 1 800
PCS 1 900
Small MS
Other MS
Class 1 and 2
Class 3
WANTED SIGNAL dBVemf( )
15
13
17
15
15
FIRST INTERFERER dBVemf( )
64
74
64
68
64
SECOND INTERFERER dBVemf( )
63
63
64
68
64
NOTE: Some of the levels in table 14-24 are different to those specified in 3GPP TS 05.05 due to the consideration of the effect of modulation sideband noise from the second interferer.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.6.1.5 Test requirements
|
The error rate measured in this test shall not exceed the test limit error rate values given in table 14-25.
This shall apply under normal condition and under any combination of normal and extreme test voltages and ambient temperature, and with the two interfering signals at either side of the wanted frequency.
Table 14-25: Limits for intermodulation rejection
Channel
Propagation conditions
Type of measurement
Test limit error rate %
Minimum No. of samples
TCH/FS Class II
Static
RBER
2,439
8 200
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.6.2 Intermodulation rejection - control channels
| |
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.6.2.1 Definition
|
The intermodulation rejection is a measure of the capability of the receiver to receive a wanted modulated signal without exceeding a given degradation due to the presence of two or more unwanted signals with a specific frequency relationship to the wanted signal frequency.
For E-GSM 900, R-GSM 900 and ER-GSM 900 MS this test is only performed in the P-GSM band.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.6.2.2 Conformance requirement
|
In the presence of two unwanted signals with a specific frequency relationship to the wanted signal frequency the FER for FACCH/F shall meet the reference sensitivity performance of table 1 in 3GPP TS 05.05 subclause 5.3.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.6.2.3 Test purpose
|
To verify that the MS does not exceed the conformance requirement with an allowance for the statistical significance of the test.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.6.2.4 Method of test
|
NOTE: The measurements address the third order intermodulation, which represents the most serious case.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.6.2.4.1 Initial conditions
|
A call is set up according to the generic call set up procedure on a TCH with an ARFCN in the Mid ARFCN range, power control level set to maximum.
The SS transmits Standard Test Signal C1 on the traffic channel. The amplitude of the wanted signal is set to 4 dB above the reference sensitivity level (see table 14-25).
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.6.2.4.2 Procedure
|
a) The SS produces a TUhigh wanted signal, and two static interfering (unwanted) signals at the same time. There is no correlation in the modulation between the signals.
The first interfering signal is on a frequency equal to the centre frequency of an ARFCN four above that of the receiver. This signal is static and unmodulated.
The second interfering signal is on an ARFCN eight above that of the receiver. This signal is static, continuous and modulated by random data.
The amplitude of both the interfering signals is set according to table 14-26.
b) The SS sends a Layer 3 message which does not require a Layer 3 response from the MS. The SS determines the number of frame erasure events during at least the minimum number of samples of FACCH/F frames.
NOTE: These frames will not be consecutive but it is expected that the statistical significance of the tests will not be unduly degraded.
c) The measurement of step b) is repeated with the two unwanted signals having frequencies corresponding to ARFCN four and eight below the ARFCN of the wanted signal.
d) Steps a) to c), are repeated but with the receiver operating on an ARFCN in the Low ARFCN range.
e) Steps a) to c), are repeated but with the receiver operating on an ARFCN in the High ARFCN range.
f) Steps a) to e) are repeated under extreme test conditions.
Table 14-26: Intermodulation test signal levels
GSM 400, GSM 700,
T-GSM 810,
GSM 850 and GSM 900
DCS 1 800
PCS 1 900
Small MS
Other MS
Class 1 and 2
Class 3
WANTED SIGNAL dBVemf( )
15
13
17
15
15
FIRST INTERFERER dBVemf( )
64
74
64
68
64
SECOND INTERFERER dBVemf( )
63
63
64
68
64
NOTE: Some of the levels in table 14-26 are different to those specified in 3GPP TS 05.05 due to the consideration of the effect of modulation sideband noise from the second interferer.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.6.2.5 Test requirements
|
The error rate measured in this test shall not exceed the test limit error rate values given in table 14-27.
This shall apply under normal condition and under any combination of normal and extreme test voltages and ambient temperature, and with the two interfering signals at either side of the wanted frequency.
Table 14-27: Limits for intermodulation rejection
GSM 400, GSM 700,
T-GSM 810,
GSM 850 and GSM 900
DCS 1 800 and PCS 1 900
Channel
Propagation conditions
Type of measurement
Test limit error rate %
Minimum No. of max-samples
Test limit error rate %
Min No. of max-samples
FACCH/F
TUhigh/No FH
FER
8,961
6 696
4,368
13 736
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.7 Blocking and spurious response
| |
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.7.1 Blocking and spurious response - speech channels
| |
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.7.1.1 Definition
|
Blocking is a measure of the ability of the receiver to receive a modulated wanted input signal in the presence of an unwanted input signal, on frequencies other than those of the spurious responses or the adjacent channels, without exceeding a given degradation.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.7.1.2 Conformance requirement
|
1. The blocking characteristics of the receiver are specified separately for in-band and out-of-band performance as identified in 3GPP TS 05.05 subclause 5.1.
The reference sensitivity performance as specified in table 1 of 3GPP TS 05.05 shall be met when the following signals are simultaneously input to the receiver:
- a useful signal at frequency f0, 3 dB above the reference sensitivity level as specified in 3GPP TS 05.05 subclause 6.2;
- a continuous, static sine wave signal at a level as in the table of 3GPP TS 05.05 subclause 5.1 and at a frequency (f) which is an integer multiple of 200 kHz;
with the following exceptions, called spurious response frequencies:
a) GSM 700, GSM 850 and GSM 900: in band, for a maximum of six occurrences (which if grouped shall not exceed three contiguous occurrences per group);
DCS 1 800: in band, for a maximum of twelve occurrences (which if grouped shall not exceed three contiguous occurrences per group);
PCS 1 900: in band, for a maximum of twelve occurrences (which if grouped shall not exceed three contiguous occurrences per group);
GSM 400: in band, for a maximum of three occurrences;
b) out of band, for a maximum of 24 occurrences (which if below f0 and grouped shall not exceed three contiguous occurrences per group).
where the above performance shall be met when the continuous sine wave signal (f) is set to a level of 70 dBµV (emf) (i.e. -43 dBm). 3GPP TS 05.05, subclause 5.1.
3GPP TS 45.05 subclause 2:
For T-GSM 810 the requirements for GSM 900 shall apply, apart for those parameters for which a separate requirement exists.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.7.1.3 Test purpose
|
1. To verify that the in band blocking performance is met without exceeding the total number of allowed in band spurious responses. An allowance is made for the statistical significance of the test.
2. To verify that at selected out of band frequencies, the out of band blocking performance is met without exceeding the total number of allowed out of band spurious responses. An allowance is made for the statistical significance of the test.
NOTE: Not all of the possible out of band frequencies are tested as this results in excessive test time. However, the total number of out of band spurious responses, specified in 3GPP TS 05.05, are allowed to ensure a fair test of the MS.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.7.1.4 Method of test
| |
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.7.1.4.1 Initial conditions
|
A call is set up according to the generic call set up procedure, except the BCCH frequency list shall be empty, on a TCH with an arbitrary ARFCN in the range supported by the MS. The power control level is set to maximum power. The ARFCN of the BCCH shall be the same - or at an offset of +/- 2 channels, than that of the ARFCN for the TCH.
The SS transmits Standard Test Signal C1 on the traffic channel. (TCH frequency FR).
The SS commands the MS to create traffic channel loop back signalling erased frames.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.7.1.4.2 Procedure
|
a) The SS produces a static wanted signal and a static interfering signal at the same time. The amplitude of the wanted signal is set to 4 dB above the reference sensitivity level.
b) The unwanted signal is a C.W. signal (Standard test signal IO) of frequency FB. It is applied in turn on the subset of frequencies calculated in step c) in the overall range 100 kHz to 12,75 GHz, where FB is an integer multiple of 200 kHz.
However, frequencies in the range FR ±600 kHz are excluded.
NOTE: Allowance must be made for possible spurious signals arising from the SS. These are particularly likely at sub harmonic frequencies nFB where n = 2, 3, 4, 5, etc.
c) The frequencies at which the test is performed (adjusted to an integer multiple of 200 kHz channels most closely approximating the absolute frequency of the calculated blocking signal frequency) are the combined frequencies from i), ii) and iii) below:-
i) The total frequency range formed by:
GSM 400 the frequencies between Flo + (IF1 + IF2 + ... + IFn +3,6 MHz)
and Flo - (IF1 + IF2 + ... + IFn + 3,6 MHz).
GSM 700 and T-GSM 810 the frequencies between Flo + (IF1 + IF2 + ... + IFn +7,5 MHz)
and Flo - (IF1 + IF2 + ... + IFn + 7,5 MHz).
GSM 850 and P-GSM 900 the frequencies between Flo + (IF1 + IF2 + ... + IFn +1 2,5 MHz)
and Flo - (IF1 + IF2 + ... + IFn + 12,5 MHz).
E-GSM 900 the frequencies between Flo + (IF1 + IF2 + ... + IFn + 17,5 MHz)
and Flo - (IF1 + IF2 + ... + IFn + 17,5 MHz).
DCS 1 800 the frequencies between Flo + (IF1 + IF2 + ... +IFn + 37,5 MHz)
and Flo - (IF1 + IF2 + ... + IFn + 37,5 MHz).
PCS 1 900 the frequencies between Flo + (IF1 + IF2 + ... + IFn + 30,0 MHz)
and Flo - (IF1 + IF2 + ... + IFn + 30,0 MHz).
and
the frequencies +100 MHz and -100 MHz from the edge of the relevant receive band.
Measurements are made at 200 kHz intervals.
ii) The three frequencies IF1, IF1 + 200 kHz, IF1 - 200 kHz.
iii) The frequencies:
mFlo + IF1;
mFlo - IF1;
mFR;
where m is all positive integers greater than or equal to 2 such that either sum lies in the range 100 kHz to 12,75 GHz.
The frequencies in step ii) and iii) lying in the range of frequencies defined by step i) above need not be repeated.
Where:
Flo - local oscillator applied to first receiver mixer
IF1 ... IFn - are the n intermediate frequencies
Flo, IF1, IF2 ... IFn - shall be declared by the manufacturer in the PIXIT statement
3GPP TS 51.010-1 annex 3.
d) The level of the unwanted signal is set according to table 14-28.
Table 14-28a: Level of unwanted signals
GSM 900
DCS 1 800
Small MS
Other MS
FREQUENCY
LEVEL IN dBVemf( )
FR ±600 kHz to FR ±800 kHz
70
75
70
FR ±800 kHz to FR ±1,6 MHz
70
80
70
FR ±1,6 MHz to FR ±3 MHz
80
90
80
915 MHz to FR - 3 MHz
90
90
-
FR + 3 MHz to 980 MHz
90
90
-
1 785 MHz to FR - 3 MHz
-
-
87
FR + 3 MHz to 1 920 MHz
-
-
87
835 MHz to < 915 MHz
113
113
> 980 MHz to 1 000 MHz
113
113
100 kHz to < 835 MHz
90
90
> 1 000 MHz to 12,75 GHz
90
90
100 kHz to 1 705 MHz
-
-
113
> 1 705 MHz to < 1 785 MHz
-
-
101
> 1 920 MHz to 1 980 MHz
-
-
101
> 1 980 MHz to 12,75 GHz
-
-
90
Table 14-28b: Level of unwanted signals
GSM 450
GSM 480
Small MS
Other MS
Small MS
Other MS
FREQUENCY
LEVEL IN dBVemf( )
FR ±600 kHz to FR ±800 kHz
70
75
70
75
FR ±800 kHz to FR ±1,6 MHz
70
80
70
80
FR ±1,6 MHz to FR ±3 MHz
80
90
80
90
457,6 MHz to FR - 3 MHz
90
90
-
-
FR + 3 MHz to 473,6 MHz
90
90
-
-
486 MHz to FR - 3 MHz
-
-
90
90
FR + 3 MHz to 502 MHz
-
-
90
90
100 kHz to < 457,6 MHz
113
113
-
-
> 473,6 MHz to 12,75 GHz
113
113
-
-
100 kHz to < 486 MHz
-
-
113
113
> 502 MHz to 12,75 GHz
-
-
113
113
Table 14-28c: Level of unwanted signals
PCS 1 900
FREQUENCY
LEVEL IN dBVemf( )
FR ±600 kHz to FR ±800 kHz
70
FR ±800 kHz to FR ±1,6 MHz
70
FR ±1,6 MHz to FR ±3 MHz
80
1 910 MHz to FR - 3 MHz
87
FR + 3 MHz to 2 010 MHz
87
100 kHz to 1 830 MHz
113
> 1 830 MHz to < 1 910 MHz
101
> 2 010 MHz to 2 070 MHz
101
> 2 070 MHz to 12,75 GHz
90
Table 14-28d: Level of unwanted signals
GSM 710
GSM 750
T-GSM 810
GSM 850
FREQUENCY
LEVEL IN dBVemf( )
FR ±600 kHz to FR ±800 kHz
70
70
70
70
FR ±800 kHz to FR ±1,6 MHz
70
70
70
70
FR ±1,6 MHz to FR ±3 MHz
80
80
80
80
678 MHz to FR - 3 MHz
90
-
-
-
FR + 3 MHz to 728 MHz
90
-
-
-
727 MHz to FR - 3 MHz
-
90
-
-
FR + 3 MHz to 777 MHz
-
90
-
-
831 MHz to FR - 3 MHz
-
-
90
-
FR + 3 MHz to 886 MHz
-
-
90
-
849 MHz to FR - 3 MHz
-
-
-
90
FR + 3 MHz to 914 MHz
-
-
-
90
678 MHz to FR - 3 MHz
113
-
-
-
FR + 3 MHz to 728 MHz
113
-
-
-
100 kHz to < 727 MHz
-
113
-
-
> 777 MHz to 12,75 GHz
-
113
-
-
100 kHz to 831 MHz
-
-
113
-
> 886 MHz to 12,75 MHz
-
-
113
-
100 kHz to < 849 MHz
-
-
-
113
> 914 MHz to 12,75 GHz
-
-
-
113
NOTE 1: These values differ from 3GPP TS 05.05 because of practical generator limits in the SS.
NOTE 2: For an E-GSM 900 MS the level of the unwanted signal in the band 905 MHz to < 915 MHz is relaxed to 108 dBuVemf( ).
NOTE 3: For a GSM 450 small MS the level of the unwanted signal in the band 450,4 MHz to < 457,6 MHz is relaxed to 108 dBuVemf( ). For a GSM 480 small MS the level of the unwanted signal in the band 478,8 MHz to < 486 MHz is relaxed to 108 dBuVemf( ).
e) The SS compares the data of the signal that it sends to the MS with the signal which is looped back from the receiver after demodulation and decoding, and checks the frame erasure indication.
The SS tests the RBER compliance for the bits of class II, by examining sequences of at least the minimum number of samples of consecutive bits of class II, where bits are taken only from those frames for which no bad frame indication was given. The number of error events is recorded.
If a failure is indicated it is noted and counted towards the allowed exemption totals.
In the case of failures discovered at the predicted frequencies at steps f ii), iii) or iv) the test is repeated on the adjacent channels ±200 kHz away. If either of these two frequencies fail then the next channel 200 kHz beyond is also tested. This process is repeated until all channels constituting the group of failures is known.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.7.1.5 Test requirements
|
The error rate measured in this test shall not exceed the conformance requirement. Testing the conformance requirement can be done either in the classical way with a fixed minimum number of samples (refer to section 14.7.1.5.2) or using statistical methods that lead to an early pass/fail decision with test time significantly reduced for MS with performance not on the limit (refer to section 14.7.1.5.1). Both methods are based on a bad DUT factor M = 1.5.
This shall apply under normal test voltage and ambient temperature, and with the interfering signal at any frequency in the range specified.
The following exceptions are allowed:
GSM 450: A maximum of three failures in the frequency band 457,6 MHz to 473,6 MHz.
A maximum of 24 failures in the combined bands 100 kHz to 457,6 MHz and 473,6 MHz to 12,75 GHz (which, if below FR and grouped, shall not exceed three 200 kHz channels per group).
GSM 480: A maximum of three failures in the frequency band 486 MHz to 502 MHz.
A maximum of 24 failures in the combined bands 100 kHz to 486 MHz and 502 MHz to 12,75 GHz (which, if below FR and grouped, shall not exceed three 200 kHz channels per group).
GSM 710: A maximum of six failures in the frequency band 678 MHz to 728 MHz (which, if grouped, shall not exceed three 200 kHz channels per group).
A maximum of 24 failures in the combined bands 100 kHz to 678 MHz and 728 MHz to 12,75 GHz (which, if below FR and grouped, shall not exceed three 200 kHz channels per group).
GSM 750: A maximum of six failures in the frequency band 727 MHz to 782 MHz (which, if grouped, shall not exceed three 200 kHz channels per group).
A maximum of 24 failures in the combined bands 100 kHz to 727 MHz and 782 MHz to 12,75 GHz (which, if below FR and grouped, shall not exceed three 200 kHz channels per group).
GSM 810: A maximum of six failures in the frequency band 831 MHz to 886 MHz (which, if grouped, shall not exceed three 200 kHz channels per group).
A maximum of 24 failures in the combined bands 100 kHz to 831 MHz and 886 MHz to 12,75 GHz (which, if below FR and grouped, shall not exceed three 200 kHz channels per group).
GSM 850: A maximum of six failures in the frequency band 849 MHz to 914 MHz (which, if grouped, shall not exceed three 200 kHz channels per group).
A maximum of 24 failures in the combined bands 100 kHz to 849 MHz and 914 MHz to 12,75 GHz (which, if below FR and grouped, shall not exceed three 200 kHz channels per group).
GSM 900: A maximum of six failures in the frequency band 915 MHz to 980 MHz (which, if grouped, shall not exceed three 200 kHz channels per group).
A maximum of 24 failures in the combined bands 100 kHz to 915 MHz and 980 MHz to 12,75 GHz (which, if below FR and grouped, shall not exceed three 200 kHz channels per group).
DCS 1 800: A maximum of twelve failures in the band 1 785 MHz to 1 920 MHz (which, if grouped, shall not exceed three 200 kHz channels per group).
A maximum of 24 in the combined bands 100 kHz to 1 785 MHz and 1 920 MHz to 12,75 GHz (which, if below FR and grouped, shall not exceed three 200 kHz channels per group).
PCS 1 900: A maximum of twelve failures in the band 1 910 MHz to 2 010 MHz (which, if grouped, shall not exceed three 200 kHz channels per group).
A maximum of 24 in the combined bands 100 kHz to 1 910 MHz and 2 010 MHz to 12,75 GHz (which, if below FR and grouped, shall not exceed three 200 kHz channels per group).
If the number of failures do not exceed the maximum allowed figures stated above, the test of 14.7.1.4 is repeated at the frequencies at which the failures occurred. The level of the unwanted signal is set to 70 dBVemf( ) and the performance requirement is once again that stated in the table above.
The number of Error Events recorded in this test shall not exceed the test limit error rate values given below, when using either the accelerated BER method or the maximum number of samples. No failures are allowed at this lower unwanted signal level.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.7.1.5.1 Statistical testing of blocking and spurious response performance with early decision
|
For more information on statistical testing of blocking and spurious response performance, especially the definition of limit lines refer to Annex 7.
Wrong decision risk F for one single error rate test:
Fpass ≠ Ffail As the blocking test case comprises of many BER tests the wrong decision risk for a fail decision of one single error rate test must be smaller than the wrong decision risk for a pass decision to avoid an increased probability of an erroneous fail decision.
Fpass = 0.2%
Ffail = 0.02%
Wrong decision probability D per test step:
Dpass ≠ Dfail
Dpass = 0.008%
Dfail = 0.0008%
Parameters for limit lines:
1. Dpass = 0.008% wrong decision probability per test step for early pass decision.
Dfail = 0.0008% wrong decision probability per test step for early fail decision.
2. M = 1.5 bad DUT factor
3. ne number of (error) events.
4. ns number of samples. The error rate is calculated from ne and ns.
Limit checking
For an early decision a minimum number of measured (error) events is necessary.
For an early pass decision ne ≥ 1
For an early fail decision ne ≥ 8
When the target test time has been reached the test is finished and a pass/fail decision can be made.
The statistical test limits for blocking performance with early decision are given in Table 14-29a
Table 14-29a: Statistical test limits for blocking performance
Channel
bits per s
Orig. RBER
requirement
Derived test limit
Target number of samples
Target test time (s)
Target test time
(hh:mm:ss)
TCH/FS Class II
3900
0,020000
0,025020
16107
4
00:00:04
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.7.1.5.2 Fixed testing of blocking and spurious response performance with minimum number of samples
|
The fixed testing of the conformance requirement is done using the minimum number of samples and the limit RBER given in table 14‑29c
Table 14-29c: Limits for blocking
Channel
Type of measurement
Test limit error rate %
Minimum number of samples
TCH/FS Class II
RBER
2,439
8 200
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.7.2 Blocking and spurious response - control channels
| |
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.7.2.1 Definition
|
Blocking is a measure of the ability of the receiver to receive a modulated wanted input signal in the presence of an unwanted input signal, on frequencies other than those of the spurious responses or the adjacent channels, without exceeding a given degradation.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.7.2.2 Conformance requirement
|
1. The blocking characteristics of the receiver are specified separately for in-band and out-of-band performance as identified in 3GPP TS 45.005 subclause 5.1.
The reference sensitivity performance as specified in table 1 of 3GPP TS 45.005 shall be met when the following signals are simultaneously input to the receiver:
- a useful signal at frequency f0, 3 dB above the reference sensitivity level as specified in 3GPP TS 45.005 subclause 6.2;
- a continuous, static sine wave signal at a level as in the table of 3GPP TS 45.005 subclause 5.1 and at a frequency (f) which is an integer multiple of 200 kHz.
with the following exceptions, called spurious response frequencies:
a) GSM 700, GSM 850 or GSM 900: in band, for a maximum of six occurrences (which if grouped shall not exceed three contiguous occurrences per group);
DCS 1 800: in band, for a maximum of twelve occurrences (which if grouped shall not exceed three contiguous occurrences per group);
PCS 1 900: in band, for a maximum of twelve occurrences (which if grouped shall not exceed three contiguous occurrences per group);
GSM 400: in band, for a maximum of three occurrences;
b) out of band, for a maximum of 24 occurrences (which if below f0 and grouped shall not exceed three contiguous occurrences per group).
where the above performance shall be met when the continuous sine wave signal (f) is set to a level of 70 dBµV (emf) (i.e. -43 dBm). 3GPP TS 45.005, subclause 5.1.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.7.2.3 Test purpose
|
1. To verify that the in band blocking performance is met without exceeding the total number of allowed in band spurious responses. An allowance is made for the statistical significance of the test.
2. To verify that at selected out of band frequencies, the out of band blocking performance is met without exceeding the total number of allowed out of band spurious responses. An allowance is made for the statistical significance of the test.
NOTE: Not all of the possible out of band frequencies are tested as this results in excessive test time. However, the total number of out of band spurious responses, specified in 3GPP TS 45.005, are allowed to ensure a fair test of the MS.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.7.2.4 Method of test
| |
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.7.2.4.1 Initial conditions
|
A call is set up according to the generic call set up procedure, except the BCCH frequency list shall be empty, on a TCH with an arbitrary ARFCN in the range supported by the MS. The power control level is set to maximum power. The ARFCN of the BCCH shall be the same - or at an offset of +/- 2 channels, than that of the ARFCN for the TCH.
The SS transmits Standard Test Signal C1 on the traffic channel. (TCH frequency FR).
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.7.2.4.2 Procedure
|
NOTE: To reduce the overall test time an optional pre-measurment to detect blocking events can be perfomed prior to the start of the test procedure. As an outcome of the pre-measurement the test is performed only for blocking event related frequencies.a) The SS sends a Layer 3 message which does not require a Layer 3 response from the MS. Due to interfering signals, the MS may not be able to acknowledge the Layer 2 frame. Frame erasures are indicated by repeated L2 frames.
b) The SS is set to produce a TUhigh wanted signal and a static interfering signal at the same time. The SS sets the amplitude of the wanted signal to 4 dB above the reference sensitivity level.
c) The unwanted signal is a C.W. signal (Standard test signal IO) of frequency FB. It is applied in turn on the subset of frequencies calculated at step f) in the overall range 100 kHz to 12,75 GHz, where FB is an integer multiple of 200 kHz.
However, frequencies in the range FR ±600 kHz are excluded.
NOTE: Allowance must be made for possible spurious signals arising from the SS. These are particularly likely at sub harmonic frequencies nFB where n = 2, 3, 4, 5, etc.
d) The frequencies at which the test is performed (adjusted to an integer multiple of 200 kHz channels most closely approximating the absolute frequency of the calculated blocking signal frequency) are the combined frequencies from i), ii) and iii) which follow:
i) The total frequency range formed by:-
GSM 400 the frequencies between Flo + (IF1 + IF2 + ... + IFn + 3,6 MHz)
and Flo - (IF1 + IF2 + ... + IFn + 3,6 MHz).
GSM 700 the frequencies between Flo + (IF1 + IF2 + ... + IFn + 7,5 MHz)
and Flo - (IF1 + IF2 + ... + IFn + 7,5 MHz).
GSM 850 the frequencies between Flo + (IF1 + IF2 + ... + IFn + 12,5 MHz)
and Flo - (IF1 + IF2 + ... + IFn + 12,5 MHz).
P-GSM 900 the frequencies between Flo + (IF1 + IF2 + ... + IFn + 12,5 MHz)
and Flo - (IF1 + IF2 + ... + IFn + 12,5 MHz).
E-GSM 900 the frequencies between Flo + (IF1 + IF2 + ... + IFn +1 7,5 MHz)
and Flo - (IF1 + IF2 + ... + IFn + 17,5 MHz).
DCS 1 800 the frequencies between Flo + (IF1 + IF2 + ... + IFn + 37,5 MHz)
and Flo - (IF1 + IF2 + ... + IFn + 37,5 MHz).
PCS 1 900 the frequencies between Flo + (IF1 + IF2 + ... + IFn + 30,0 MHz)
and Flo - (IF1 + IF2 + ... + IFn + 30,0 MHz).
and
the frequencies +100 MHz and -100 MHz from the edge of the relevant receive band.
Measurement are made at 200 kHz intervals.
ii) The three frequencies IF1, IF1 + 200 kHz, IF1 - 200 kHz.
iii) The frequencies:
mFlo + IF1;
mFlo - IF1;
mFR;
where m is all positive integers greater than or equal to 2 such that either sum lies in the range 100 kHz to 12,75 GHz.
The frequencies in step ii) and iii) lying in the range of frequencies defined by step i) above need not be repeated.
Where:
Flo - local oscillator applied to first receiver mixer
IF1 ... IFn - are the n intermediate frequencies
Flo, IF1, IF2 ... IFn - shall be declared by the manufacturer in the PIXIT statement
3GPP TS 51.010-1 annex 3.
e) The level of the unwanted signal is set according to table 14-30.
Table 14-30a: Level of unwanted signals
GSM 900
DCS 1 800
Small MS
Other MS
FREQUENCY
LEVEL IN dBVemf( )
FR ±600 kHz to FR ±800 kHz
70
75
70
FR ±800 kHz to FR ±1,6 MHz
70
80
70
FR ±1,6 MHz to FR ±3 MHz
80
90
80
915 MHz to FR - 3 MHz
90
90
-
FR + 3 MHz to 980 MHz
90
90
-
1785 MHz to FR - 3 MHz
-
-
87
FR + 3 MHz to 1 920 MHz
-
-
87
835 MHz to < 915 MHz
113
113
> 980 MHz to 1 000 MHz
113
113
100 kHz to < 835 MHz
90
90
> 1 000 MHz to 12,75 GHz
90
90
100 kHz to 1 705 MHz
-
-
113
> 1 705 MHz to < 1 785 MHz
-
-
101
> 1 920 MHz to 1 980 MHz
-
-
101
> 1 980 MHz to 12,75 GHz
-
-
90
Table 14-30b: Level of unwanted signals
GSM 450
GSM 480
Small MS
Other MS
Small MS
Other MS
FREQUENCY
LEVEL IN dBVemf( )
FR ±600 kHz to FR ±800 kHz
70
75
70
75
FR ±800 kHz to FR ±1,6 MHz
70
80
70
80
FR ±1,6 MHz to FR ±3 MHz
80
90
80
90
457,6 MHz to FR - 3 MHz
90
90
-
-
FR + 3 MHz to 473,6 MHz
90
90
-
-
486 MHz to FR - 3 MHz
-
-
90
90
FR + 3 MHz to 502 MHz
-
-
90
90
100 kHz to < 457,6 MHz
113
113
-
-
> 473,6 MHz to 12,75 GHz
113
113
-
-
100 kHz to < 486 MHz
-
-
113
113
> 502 MHz to 12,75 GHz
-
-
113
113
Table 14-30c: Level of unwanted signals
PCS 1 900
FREQUENCY
LEVEL IN dBVemf( )
FR ±600 kHz to FR ±800 kHz
70
FR ±800 kHz to FR ±1,6 MHz
70
FR ±1,6 MHz to FR ±3 MHz
80
1 910 MHz to FR - 3 MHz
87
FR + 3 MHz to 2 010 MHz
87
100 kHz to 1 830 MHz
113
> 1 830 MHz to < 1 910 MHz
101
> 2 010 MHz to 2 070 MHz
101
> 2 070 MHz to 12,75 GHz
90
Table 14-30d: Level of unwanted signals
GSM 710
GSM 750
T-GSM 810
GSM 850
FREQUENCY
LEVEL IN dBVemf( )
FR ±600 kHz to FR ±800 kHz
70
70
70
70
FR ±800 kHz to FR ±1,6 MHz
70
70
70
70
FR ±1,6 MHz to FR ±3 MHz
80
80
80
80
678 MHz to FR - 3 MHz
90
-
-
-
FR + 3 MHz to 728 MHz
90
-
-
-
727 MHz to FR - 3 MHz
-
90
-
-
FR + 3 MHz to 777 MHz
-
90
-
-
831 MHz to FR - 3 MHz
-
-
90
-
FR + 3 MHz to 886 MHz
-
-
90
-
849 MHz to FR - 3 MHz
-
-
-
90
FR + 3 MHz to 914 MHz
-
-
-
90
678 MHz to FR - 3 MHz
113
-
-
-
FR + 3 MHz to 728 MHz
113
-
-
-
100 kHz to < 727 MHz
-
113
-
-
> 782 MHz to 12,75 GHz
-
113
-
-
100 kHz to 831 MHz
-
-
113
-
> 886 MHz to 12,75 MHz
-
-
113
-
100 kHz to < 849 MHz
-
-
-
113
> 914 MHz to 12,75 GHz
-
-
-
113
NOTE 1: These values differ from 3GPP TS 05.05 because of practical generator limits in the SS.
NOTE 2: For an E-GSM 900 MS the level of the unwanted signal in the band 905 MHz to < 915 MHz is relaxed to 108 dBuVemf( ).
NOTE 3: For a GSM 450 small MS the level of the unwanted signal in the band 450,4 MHz to <457,6 MHz is relaxed to 108 dBuVemf( ). For a GSM 480 small MS the level of the unwanted signal in the band 478,8 MHz to <486 MHz is relaxed to 108 dBuVemf( ).
f) The SS determines the number of frame erasure events during at least the minimum number of samples. If a failure is indicated, it is noted and counted towards the allowed exemption total.
In the case of failures discovered at the predicted frequencies at steps f ii), iii) or iv) the test is repeated on the adjacent channels ±200 kHz away. If either of these two frequencies fail then the next channel 200 kHz beyond is also be tested. This process is repeated until all channels constituting the group of failures is known.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.7.2.5 Test requirements
|
The error rate measured in this test shall not exceed the test limit error rate given in table 14-31.
This shall apply under normal test voltage and ambient temperature, and with the interfering signal at any frequency in the range specified.
Table 14-31: Limits for blocking
GSM 400 and GSM 900
DCS 1 800 and PCS 1 900
Channel
Type of measurement
Test limit error rate
Minimum No. of samples
Test limit error rate
Minimum No. of samples
FACCH/F
FER
8,961
6 696
4,368
13 736
The following exceptions are allowed:
GSM 450: A maximum of three failures in the frequency band 457,6 MHz to 473,6 MHz.
A maximum of 24 failures in the combined bands 100 kHz to 457,6 MHz and 473,6 MHz to 12,75 GHz (which, if below FR and grouped, shall not exceed three 200 kHz channels per group).
GSM 480: A maximum of three failures in the frequency band 486 MHz to 502 MHz.
A maximum of 24 failures in the combined bands 100 kHz to 486 MHz and 502 MHz to 12,75 GHz (which, if below FR and grouped, shall not exceed three 200 kHz channels per group).
GSM 710: A maximum of six failures in the frequency band 678 MHz to 728 MHz (which, if grouped, shall not exceed three 200 kHz channels per group).
A maximum of 24 failures in the combined bands 100 kHz to 678 MHz and 728 MHz to 12,75 GHz (which, if below FR and grouped, shall not exceed three 200 kHz channels per group).
GSM 750: A maximum of six failures in the frequency band 727 MHz to 782 MHz (which, if grouped, shall not exceed three 200 kHz channels per group).
A maximum of 24 failures in the combined bands 100 kHz to 727 MHz and 782 MHz to 12,75 GHz (which, if below FR and grouped, shall not exceed three 200 kHz channels per group).
T-GSM 810: A maximum of six failures in the frequency band 831 MHz to 886 MHz (which, if grouped, shall not exceed three 200 kHz channels per group).
A maximum of 24 failures in the combined bands 100 kHz to 831 MHz and 886 MHz to 12,75 GHz (which, if below FR and grouped, shall not exceed three 200 kHz channels per group).
GSM 850: A maximum of six failures in the frequency band 849 MHz to 914 MHz (which, if grouped, shall not exceed three 200 kHz channels per group).
A maximum of 24 failures in the combined bands 100 kHz to 849 MHz and 914 MHz to 12,75 GHz (which, if below FR and grouped, shall not exceed three 200 kHz channels per group).
GSM 900: A maximum of six failures in the band 915 MHz to 980 MHz (which, if grouped, shall not exceed three 200 kHz channels per group).
A maximum of 24 in the combined bands 100 kHz to 915 MHz and 980 MHz to 12,75 GHz (which, if below FR and grouped, shall not exceed three 200 kHz channels per group).
DCS 1 800: A maximum of twelve failures in the band 1785 MHz to 1 920 MHz (which, if grouped, shall not exceed three 200 kHz channels per group).
A maximum of 24 in the combined bands 100 kHz to 1785 MHz and 1 920 MHz to 12,75 GHz (which, if below FR and grouped, shall not exceed three 200 kHz channels per group).
PCS 1 900: A maximum of twelve failures in the band 1 910 MHz to 2 010 MHz (which, if grouped, shall not exceed three 200 kHz channels per group).
A maximum of 24 in the combined bands 100 kHz to 1 910 MHz and 2 010 MHz to 12,75 GHz (which, if below FR and grouped, shall not exceed three 200 kHz channels per group).
If the number of failures do not exceed the maximum allowed figures stated above, the test of 14.7.2.4 is repeated at the frequencies at which the failures occurred. The level of the unwanted signal is set to 70 dBVemf( ) and the performance requirement is once again that stated above.
The number of Error Events recorded in this test shall not exceed the test limit error rate values given above, when using the maximum number of samples.
No failures are allowed at this lower unwanted signal level.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.7.3 Blocking and spurious response - speech channels for MS supporting the R-GSM or ER-GSM 900 band
| |
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.7.3.1 Definition
|
Blocking is a measure of the ability of the receiver to receive a modulated wanted input signal in the presence of an unwanted input signal, on frequencies other than those of the spurious responses or the adjacent channels, without exceeding a given degradation.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.7.3.2 Conformance requirement
|
1. The blocking characteristics of the receiver are specified separately for in-band and out-of-band performance as identified in 3GPP TS 05.05 subclause 5.1.
The reference sensitivity performance as specified in table 1 of 3GPP TS 05.05 shall be met when the following signals are simultaneously input to the receiver:
- a useful signal at frequency f0, 3 dB above the reference sensitivity level as specified in 3GPP TS 05.05 subclause 6.2;
- a continuous, static sine wave signal at a level as in the table of 3GPP TS 05.05 subclause 5.1 and at a frequency (f) which is an integer multiple of 200 kHz.
With the following exceptions, called spurious response frequencies:
a) R-GSM 900 or ER-GSM 900: in band, for a maximum of six occurrences (which if grouped shall not exceed three contiguous occurrences per group);
b) out of band, for a maximum of 24 occurrences (which if below f0 and grouped shall not exceed three contiguous occurrences per group).
Where the above performance shall be met when the continuous sine wave signal (f) is set to a level of 70 dBµV (emf) (i.e. -43 dBm). 3GPP TS 05.05, subclause 5.1.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.7.3.3 Test purpose
|
1. To verify that the in band blocking performance is met without exceeding the total number of allowed in band spurious responses. An allowance is made for the statistical significance of the test.
2. To verify that at selected out of band frequencies, the out of band blocking performance is met without exceeding the total number of allowed out of band spurious responses. An allowance is made for the statistical significance of the test.
NOTE: Not all of the possible out of band frequencies are tested as this results in excessive test time. However, the total number of out of band spurious responses, specified in 3GPP TS 05.05, are allowed to ensure a fair test of the MS.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.7.3.4 Method of test
| |
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.7.3.4.1 Initial conditions
|
A call is set up according to the generic call set up procedure, except the BCCH frequency list shall be empty, on a TCH with an arbitrary ARFCN in the range supported by the MS. The power control level is set to maximum power. The ARFCN of the BCCH shall be the same - or at an offset of +/- 2 channels, than that of the ARFCN for the TCH.
The SS transmits Standard Test Signal C1 on the traffic channel. (TCH frequency FR).
The SS commands the MS to create traffic channel loop back signalling erased frames.
|
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