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51.010-1
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14.2.37.1 Definition
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The reference sensitivity for control channels is the signal level at the MS receiver input at which a certain FER must be achieved.
14.2.37.2 Conformance requirement.
- The reference performance for the Repeated Associated control channel performance in VAMOS mode shall be according to subclause 6.2.4.
3GPP TS 45.005 subclause 6.2.1a
- For Repeated Downlink FACCH and Repeated SACCH (see 3GPP TS 44.006), the minimum input signal level for which the reference performance shall be met is specified in table 1i, 1s, 1t, 1v and 1x, according to the propagation condition and type of equipment. The performance requirements for GSM 400 and GSM 700 systems are as for GSM 900 in table 1i, 1s, 1t, 1v and 1x, 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.
3GPP TS 45.005 subclause 6.2.4
- The reference performance for Repeated Downlink FACCH and Repeated SACCH shall be FER £ 5%.
3GPP TS 45.005 subclause 6.2.4
- When calculating FER, a FACCH frame and its repetition or a SACCH frame and its repetition respectively, shall be counted as one frame and a frame erasure shall be counted when neither the FACCH frame nor its repetition or neither the SACCH frame nor its repetition respectively, could be successfully decoded.
3GPP TS 45.005 subclause 6.2.4
14.2.37.3 Test purpose.
To verify that the MS does not exceed the conformance requirement under TU50 /NoFH propagation condition with an allowance for the statistical significance of the test.
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51.010-1
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14.2.37.4 Method of test
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51.010-1
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14.2.37.4.1 Initial conditions
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A call is set up according to the generic call set up procedure on a TCH/F with an ARFCN in the Mid ARFCN range, power control level set to maximum power.
The SS transmits a Standard Test Signal C1 (AQPSK) (wanted signal) on the active VAMOS subchannel (subchannel 2) using trainings sequence 5 form TSC set 2. The other VAMOS subchannel (subchannel 1) uses trainings sequences 5 from TSC set 1.
The SCPIR_DL is set to 0 dB.
The SS shall use Repeated FACCH for command and response frames for the duration of the test.
Each pair of FACCH blocks shall be counted as a single sample.
Specific PICS Statements:
- VAMOS I supported (TSPC_VAMOS_Type1)
- VAMOS II supported (TSPC_VAMOS_Type2)
- VAMOS III supported (TSPC_VAMOS_Type3)
For MS indicating VAMOS III support, connect the SS to the MS antenna connectors according to Annex A1.1.6.2.
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14.2.37.4.2 Procedure
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a) The fading function is set to TU50 /NoFH for MS indicating VAMOS I or VAMOS II support and TUhigh/(Corr.=0, AGI=0 dB as per 3GPP TS 45.005 Annex Q.7) for MS indicating VAMOS III support.
b) Depending on the indicated VAMOS type and the relevant antenna correlation and antenna gain imbalance values, the SS sets the level of the wanted signal specified by Clev in table 14.2.37-2 through table 14.2.37-6.
c) The SS sends a Layer 3 message which does not require a Layer 3 response from the MS. Due to the low signal level the MS may not be able to acknowledge an RR frame and the L2 entity of the SS will repeat the Layer 2 frame. Each retransmitted L2 frame will be counted and will indicate a frame erasure event.
d) The SS determines the frame erasure events during at least the minimum number of samples of FACCH/F frames.
e) For MS indicating VAMOS III support, steps b) to d) are repeated with the SS fading function set in turn to TU high/(Corr.=0,7, AGI=-6 dB as per 3GPP TS 45.005 Annex Q.7).
NOTE: These frames will not be consecutive but it is expected that the statistical significance of the tests will not be unduly degraded.
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14.2.37.5 Test Requirements
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Testing should be performed using statistical methods that lead to an early pass/fail decision with test time significantly reduced for MS with FER not on the limit.
For information on statistical testing refer to Annex 7 (A7.1.3.2)
Before limit checking is valid the minimum test time due to fading needs to be considered:
Table 14.2.37-1: Minimum test times due to TU50 fading conditions
TCH/F @ 50 km/h
Frequency /MHz
850
900
1800
1900
Wave length / m
0,35
0,33
0,17
0,16
Min. Test time /s
604
570
285
270
hh:mm:ss
00:10:04
00:09:30
00:04:45
00:04:30
NOTE: Minimum test time calculation due to fading is based on the best rate 50/3 frame relation in table 14.2.37-4
The error rates measured shall not exceed the test limit error rate values given in table 14.2.37-2 through table 14.2.37-6 depending of the indicated VAMOS type and the relevant antenna correlation and antenna gain imbalance values.
Table 14.2.37-2: Test Limits for Repeated FACCH/F sensitivity (VAMOS I MS)
GSM 900 / 850
Channel
SCPIR_DL /dB
Clev
/dBm
Orig. BER requirement
Derived test limit
Target number of samples
FACCH/F
0
-98,5
0.05
0.0617
5592
GSM 1800 / 1900
FACCH/F
0
-99
Table 14.2.37-3: Test Limits for Repeated FACCH/F sensitivity (VAMOS II MS)
GSM 900 / 850
Channel
SCPIR_DL /dB
Clev
/dBm
Orig. BER requirement
Derived test limit
Target number of samples
FACCH/F
0
-101
0.05
0.0617
5592
GSM 1800 / 1900
FACCH/F
0
-101,5
Table 14.2.37-4: Maximum test times
Maximum test time (best rate 50/3 per second) (s)
Maximum test time (best rate 50/3 per second) (hh:mm:ss)
Maximum test time (worst rate 50/6 per second) (s)
Maximum test time (worst rate 50/6 per second) (hh:mm:ss)
336
00:05:36
671
00:11:11
Table 14.2.37-5: Test Limits for Repeated FACCH/F sensitivity (VAMOS III MS, Corr=0.0, AGI=0 dB)
GSM 900 / 850
Channel
SCPIR_DL /dB
Clev
/dBm
Orig. BER requirement
Derived test limit
Target number of samples
FACCH/F
0
-104
0.05
0.0617
5592
GSM 1800 / 1900
FACCH/F
0
-104,5
Table 14.2.37-6: Test Limits for Repeated FACCH/F sensitivity (VAMOS III MS, Corr=0.7, AGI=-6 dB)
GSM 900 / 850
Channel
SCPIR_DL /dB
Clev
/dBm
Orig. BER requirement
Derived test limit
Target number of samples
FACCH/F
0
-101,5
0.05
0.0617
5592
GSM 1800 / 1900
FACCH/F
0
-102
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51.010-1
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14.3 Usable receiver input level range
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51.010-1
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14.3.1 Definition
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The usable receiver input level range is the range of the radio frequency input level of a specified modulated signal over which bit error ratio or frame erasure ratios stay between specified limits.
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51.010-1
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14.3.2 Conformance requirement
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1. The receiver input level range requirements of 3GPP TS 05.05 subclause 6.1 for TCH/FS class II RBER under static and EQ propagation conditions shall be met:
1.1 Under normal conditions.
1.2 Under extreme conditions.
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14.3.3 Test purpose
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1. To verify that the MS does not exceed the conformance requirement with an allowance for the statistical significance of the test:
1.1 Under normal conditions.
1.2 Under extreme conditions.
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14.3.4 Method of test
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51.010-1
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14.3.4.1 Initial conditions
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A call is set up according to the generic call set up procedure on a TCH/FS with an ARFCN in the Mid ARFCN range, power control level set to maximum.
The SS transmits Standard Test Signal C1 on the TCH/FS.
The SS commands the MS to create traffic channel loop back signalling erased frames (subclause 36.2.1.1.2).
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51.010-1
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14.3.4.2 Procedure
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a) The SS compares the data that it sends to the MS with the signal which is looped back from the receiver after demodulation and decoding.
The SS tests the bit error ratio for the non-protected bits of TCH/FS class II, by examining sequences of at least the minimum number of samples of consecutive bits of class II. The number of error events is recorded.
b) Step a) is repeated with the amplitude of the wanted signal increased to an input level at the receiver input of 73 dBVemf( ).
c) Step a) is repeated with the amplitude of the wanted signal increased to an input level at the receiver input of:
GSM 400 98 dBVemf( )
GSM 700 98 dBVemf( )
T-GSM 810 98 dBVemf( )
GSM 850 98 dBVemf( )
GSM 900 98 dBVemf( )
DCS 1 800 90 dBVemf( )
PCS 1 900 90 dBVemf( )
d) The SS fading function is set to EQ.
e) Step a) is repeated with the amplitude of the wanted signal set to respectively 20 dB above reference sensitivity level( ) and 73dBVemf( ) at the receiver input.
f) The test is repeated under extreme test conditions.
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51.010-1
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14.3.5 Test requirements
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The error rate measured in this test shall not exceed the test limit error rate values given in table 14-14. This shall apply for any combination of normal and extreme test voltages and ambient temperature, for the different propagation conditions and for any level of input signal to the receiver.
Table 14-14: Limits for input level range
GSM 400, GSM 700, T-GSM 810, GSM 850 and GSM 900
DCS 1 800 and PCS 1 900
Propagation conditions
Test limit error rate %
Minimum No. of samples
Test limit error rate %
Minimum No. of samples
Static <=73 dBVemf( )
0,012
1640000
0,012
1 640 000
Static 98 dBVemf( )
0,122
164000
Static 90 dBVemf( )
0,122
164 000
EQ
3,25
120000
3,25
60 000
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51.010-1
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14.4 Co-channel rejection
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51.010-1
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14.4.1 Co-channel rejection - TCH/FS
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51.010-1
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14.4.1.1 Definition
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The co-channel 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 an unwanted modulated signal, both signals being at the nominal frequency of the receiver.
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51.010-1
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14.4.1.2 Conformance requirement
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1. At reference co-channel interference the TCH/FS FER shall meet the reference interference performance of table 2 in 3GPP TS 05.05 subclause 6.3.
2. At reference co-channel interference the TCH/FS class Ib BER shall meet the reference interference performance of table 2 in 3GPP TS 05.05 subclause 6.3.
3. At reference co-channel interference the TCH/FS class II BER shall meet the reference interference performance of table 2 in 3GPP TS 05.05 subclause 6.3.
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51.010-1
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14.4.1.3 Test purpose
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1. To verify that the MS does not exceed conformance requirement 1 under propagation condition TUlow with no frequency hopping with an allowance for the statistical significance of the test.
2. To verify that the MS does not exceed conformance requirement 2 under propagation condition TUlow with no frequency hopping, with an allowance for the statistical significance of the test.
3. To verify that the MS does not exceed conformance requirement 3 under propagation condition TUlow with no frequency hopping with an allowance for the statistical significance of the test.
4. To verify that the non-DARP capable MS does not exceed conformance requirement 1 under propagation condition TUhigh with frequency hopping with an allowance for the statistical significance of the test.
5. To verify that the non-DARP capable MS does not exceed conformance requirement 2 under propagation condition TUhigh with frequency hopping with an allowance for the statistical significance of the test.
6. To verify that the non-DARP capable MS does not exceed conformance requirement 3 under propagation condition TUhigh with frequency hopping with an allowance for the statistical significance of the test.
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51.010-1
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14.4.1.4 Method of test
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51.010-1
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14.4.1.4.1 Initial conditions
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A call is set up according to the generic call set up procedure on a TCH/FS 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 (wanted signal).
The SS commands the MS to create the traffic channel loop back, signalling erased frames (subclause 36.1.2.1.1.1).
Specific PICS Statements:
- DARP phase 1 supported (TSPC_DARP_Phase1)
- DARP phase 2 supported (TSPC_DARP_Phase2)
PIXIT Statements:
-
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51.010-1
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14.4.1.4.2 Procedure
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a) In addition to the wanted signal, the SS produces 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. Its amplitude is 9 dB below that of the wanted signal.
The fading characteristic of the wanted and the interfering signal is TUlow.
b) The SS compares the modulation 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 determines the number of residual bit error events for the bits of class II, by examining at least the minimum number of samples of consecutive bits of class II. Bits are taken only from those frames not signalled as erased.
d) The SS determines the number of residual bit error events for the bits of the class Ib, by examining 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 at least the minimum number of samples of consecutive frames and assuming a frame is received successfully it is not signalled as erased.
f) For the non-DARP capable MS, steps a) to e) are repeated except that in step a) both the wanted and interfering signal are TUhigh hopping and the SS commands the MS into hopping mode. A hopping pattern covering at least 10 frequencies in a range not exceeding 5 MHz is used. The hopping band is centred around an ARFCN in the Mid ARFCN range.
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14.4.1.5 Test requirements
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The error rate measured in this test shall not exceed the test limit error rate values given in table 14-15.
Table 14-15: Limits for co-channel rejection
Channel
Type of measurement
Propagation condition
Test limit error rate %
Minimum No. of samples
TCH/FS
FER
TUlow/No FH
24*
25 000
TCH/FS Class Ib
RBER
TUlow/No FH
2,091/
3 300 000
TCH/FS Class II
RBER
TUlow/No FH
4,3
2 000 000
TCH/FS
FER
TUhigh/FH
3,371*
17 800
TCH/FS class Ib
RBER
TUhigh/FH
0,215/
2 000 000
TCH/FS class II
RBER
TUhigh/FH
8,333
1 200 000
The parameter can range from 1 to 1.6. The value of for the RBER test on TCH/FS class Ib bits under particular measurement conditions shall be the same as that determined in the FER test on TCH/FS under the same conditions.
14.4.1a Co-channel rejection - TCH/FS in TIGHTER configuration
14.4.1a.1 Definition
The co-channel 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 an unwanted modulated signal, both signals being at the nominal frequency of the receiver.
14.4.1a.2 Conformance requirement
3GPP TS 45.005 subclause 6.3.5
A MS indicating support for TIGHTER Capability (see 3GPP TS 24.008) shall fulfil the requirements in table 2ad for cochannel interference (C/Ic).
The reference performance shall be:
Table 6.3-6 Reference performance for TIGHTER
For speech channels (TCH/FS, TCH/HS, TCH/EFS, TCH/AFSx, TCH/AHSx, TCH/WFSx )
FER:
1 %
In addition to table 6.3-6, for speech channels the residual class Ib BER and residual class II BER performance shall not exceed the specified values in table 2ad at the corresponding interference ratio C/Ic.
14.4.1a.3 Test purpose
1. For TCH/FS FER, MS shall meet the reference interference performance mentioned in 3GPP TS 45.005 sub clause 6.3.5, for co-channel interference ratio mentioned in table 2ad according to propagation conditions.
2. At reference co-channel interference the TCH/FS class Ib BER shall meet the reference interference performance of table 2ad in 3GPP TS 45.005.
3. At reference co-channel interference the TCH/FS class II BER shall meet the reference interference performance of table 2ad in 3GPP TS 45.005.
14.4.1a.4 Method of test
14.4.1a.4.1 Initial conditions
A call is set up according to the generic call set up procedure on a TCH/FS 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 (wanted signal) at the level -93 dBm + Ir + Corr, where:
Ir = the interference ratio according to table 2ad\
Corr = the correction factor for reference performance according to table 6.2-4.
The SS commands the MS to create the traffic channel loop back, signalling erased frames.
Specific PICS Statements:
-
PIXIT Statements:
-
14.4.1a.4.2 Procedure
a) In addition to the wanted signal, the SS produces an independent, uncorrelated interfering signal, Standard Test Signal I1 (unwanted signal) 7 dB below that of the wanted signal.
The fading characteristic of the wanted and the interfering signal is TUlow.
b) The SS compares 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 determines the number of residual bit error events for the bits of class II, by examining at least the minimum number of samples of consecutive bits of class II. Bits are taken only from those frames not signalled as erased.
d) The SS determines the number of residual bit error events for the bits of the class Ib, by examining 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 at least the minimum number of samples of consecutive frames and assuming a frame is received successfully it is not signalled as erased.
14.4.1a.5 Test requirements
The error rate measured in this test shall not exceed the test limit error rate values given in table 14.4.1a.5-1 and 14.4.1a.5-2.
Table 14.4.1a.5-1: Limits for GSM 850 and GSM 900 co-channel rejection
Channels
Propagation conditions TUlow/NoFH
Test limit error rate %
Minimum No. of samples
TCH/FS
FER
1
25 000
class Ib(RBER)
0,05
3 300 000
class II(RBER)
0,6
2 000 000
Table 14.4.1a.5-2: Limits for DCS 1 800 and PCS 1 900 co-channel rejection
Channels
Propagation conditions TUlow/NoFH
Test limit error rate %
Minimum No. of samples
TCH/FS
FER
1
25 000
class Ib(RBER)
0,05
3 300 000
class II(RBER)
0,6
2 000 000
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51.010-1
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14.4.2 Co-channel rejection - TCH/HS
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51.010-1
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14.4.2.1 Definition
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-
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51.010-1
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14.4.2.2 Conformance requirement
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1. At reference co channel interference, the TCH/HS FER (shall meet the reference interference performance of table 2 in 3GPP TS 05.05 subclause 6.3.
2. At reference co channel interference, the TCH/HS class Ib BER (BFI=0) shall meet the reference interference performance of table 2 in 3GPP TS 05.05 subclause 6.3.
3. At reference co channel interference, the TCH/HS class II BER (BFI=0) shall meet the reference interference performance of table 2 in 3GPP TS 05.05 subclause 6.3.
4. At reference co channel interference, the TCH/HS UFR shall meet the reference interference performance of table 2 in 3GPP TS 05.05 subclause 6.3.
5. At reference co channel interference, the TCH/HS class Ib RBER ((BFI or UFI)=0) shall meet the reference interference performance of table 2 in 3GPP TS 05.05 subclause 6.3.
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51.010-1
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14.4.2.3 Test purpose
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1. To verify that the MS does not exceed conformance requirement 1, under propagation conditions TUhigh with frequency hopping, with an allowance for the statistical significance of the test.
2. To verify that the MS does not exceed conformance requirement 1, under propagation conditions TUhigh with frequency hopping, with an allowance for the statistical significance of the test.
3. To verify that the MS does not exceed conformance requirement 1, under propagation conditions TUhigh with frequency hopping, with an allowance for the statistical significance of the test.
4. To verify that the MS does not exceed conformance requirement 4, under propagation condition TUhigh with frequency hopping, with an allowance for the statistical significance of the test.
5. To verify that the MS does not exceed conformance requirement 4, under propagation condition TUhigh with frequency hopping, with an allowance for the statistical significance of the test.
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51.010-1
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14.4.2.4 Method of test
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51.010-1
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14.4.2.4.1 Initial conditions
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A call is set up according to the generic call set up procedure on a TCH/HS 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 (wanted signal).
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51.010-1
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14.4.2.4.2 Procedure
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a) In addition to the wanted signal, the SS produces 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. Its amplitude is 9 dB below that of the wanted signal.
b) The fading characteristic of the wanted and the interfering signal is set to TUhigh. The SS commands the MS into hopping mode. A hopping pattern covering at least 10 frequencies in a range not exceeding 5 MHz is used. The hopping pattern is centred around an ARFCN in the Mid ARFCN range.
c) The SS commands the MS to create traffic channel loop back signalling erased frames using test loop A.
NOTE 1: Test loop A is defined in clause 36. Frames marked with BFI=1 are signalled as erased on the uplink.
d) The SS compares the modulation 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.
e) The SS determines the number of residual bit error events for the bits of class II, by examining at least the minimum number of samples of consecutive bits of class II. Bits are taken only from those frames not signalled as erased.
f) The SS determines the number of residual bit error events for the bits of the class Ib, by examining at least the minimum number of samples of consecutive bits of class Ib. Bits are only taken from those frames not signalled as erased.
g) The SS also determines the frame erasure events by examining at least the minimum number of samples of consecutive frames and assuming a frame is received successfully it is not signalled as erased.
h) The SS commands the MS to open test loop A and close test loop D.
NOTE 2: Test loop D is defined in clause 36. Frames marked as erased (BFI=1), or unreliable (UFI=1), are signalled to the SS on the uplink.
j) 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 erased/unreliable frame indication.
k) 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/unreliable.
l) The SS also determines the unreliable frame events by examining sequences of at least the minimum number of samples of consecutive frames and assuming a frame is received successfully it is not signalled as erased/unreliable.
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51.010-1
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14.4.2.5 Test requirements
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The error rate measured in this test shall not exceed the test limit error rate values given in table 14-16 or table 14-17.
Table 14-16: Limits for GSM 400, GSM 700, T-GSM 810, GSM 850 and GSM 900 co-channel rejection
Channel/Type of measurement
Propagation condition
Test limit error rate %
Minimum No. of samples
TCH/HS FER
TUhigh/FH
5,607
10 700
TCH/HS Class Ib RBER (BFI=0)
TUhigh/FH
0,325
184 700
TCH/HS Class II RBER (BFI=0)
TUhigh/FH
7,961
25 500
TCH/HS UFR
TUhigh/FH
6,834
8 780
TCH/HS Class Ib RBER ((BFI or UFI)=0)
TUhigh/FH
0,235
255 000
Table 14-17: Limits for DCS 1800 and PCS 1 900 co-channel rejection
Channel/Type of measurement
Propagation condition
Test limit error rate %
Minimum No. of samples
TCH/HS FER
TUhigh/FH
5,607
10 700
TCH/HS Class Ib RBER (BFI=0)
TUhigh/FH
0,325
184 700
TCH/HS Class II RBER (BFI=0)
TUhigh/FH
7,961
25 500
TCH/HS UFR
TUhigh/FH
6,834
8 780
TCH/HS Class Ib RBER ((BFI or UFI)=0)
TUhigh/FH
0,235
255 000
14.4.2a Co-channel rejection - TCH/HS in TIGHTER configuration
14.4.2a.1 Definition
The co-channel 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 an unwanted modulated signal, both signals being at the nominal frequency of the receiver.
14.4.2a.2 Conformance requirement
3GPP TS 45.005 subclause 6.3.5
A MS indicating support for TIGHTER Capability (see 3GPP TS 24.008) shall fulfil the requirements in table 2ad for cochannel interference (C/Ic).
The reference performance shall be:
Table 6.3-6 Reference performance for TIGHTER
For speech channels (TCH/FS, TCH/HS, TCH/EFS, TCH/AFSx, TCH/AHSx, TCH/WFSx )
FER:
1 %
In addition to table 6.3-6, for speech channels the residual class Ib BER and residual class II BER performance shall not exceed the specified values in table 2ad at the corresponding interference ratio C/Ic.
14.4.2a.3 Test purpose
1. For TCH/HS FER, MS shall meet the reference interference performance mentioned in 3GPP TS 45.005 sub clause 6.3.5, for co-channel interference ratio mentioned in table 2ad according to propagation conditions.
2. At reference co channel interference, the TCH/HS class Ib BER shall meet the reference interference performance of table 2ad in 3GPP TS 45.005.
3. At reference co channel interference, the TCH/HS class II BER shall meet the reference interference performance of table 2ad in 3GPP TS 45.005.
14.4.2a.4 Method of test
14.4.2a.4.1 Initial conditions
A call is set up according to the generic call set up procedure on a TCH/HS 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 (wanted signal) at the level -93 dBm + Ir + Corr, where:
Ir = the interference ratio according to table 2ad\
Corr = the correction factor for reference performance according to table 6.2-4.
Specific PICS Statements:
-
14.4.2a.4.2 Procedure
a) In addition to the wanted signal, the SS produces an independent, uncorrelated interfering signal, Standard Test Signal I1 (unwanted signal) 0 dB below that of the wanted signal.
b) The fading characteristic of the wanted and the interfering signal is set to TUhigh. The SS commands the MS into hopping mode. A hopping pattern covering at least 10 frequencies in a range not exceeding 5 MHz is used. The hopping pattern is centred around an ARFCN in the Mid ARFCN range.
c) The SS commands the MS to create traffic channel loop back signalling erased frames using test loop A.
NOTE 1: Test loop A is defined in clause 36. Frames marked with BFI=1 are signalled as erased on the uplink.
d) The SS compares the modulation 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.
e) The SS determines the number of residual bit error events for the bits of class II, by examining at least the minimum number of samples of consecutive bits of class II. Bits are taken only from those frames not signalled as erased.
f) The SS determines the number of residual bit error events for the bits of the class Ib, by examining at least the minimum number of samples of consecutive bits of class Ib. Bits are only taken from those frames not signalled as erased.
g) The SS also determines the frame erasure events by examining at least the minimum number of samples of consecutive frames and assuming a frame is received successfully it is not signalled as erased.
14.4.2a.5 Test requirements
The error rate measured in this test shall not exceed the test limit error rate values given in table 14.4.2a.5-1or table 14.4.2a.5-2.
Table 14.4.2a.5-1: Limits for GSM 850 and GSM 900 co-channel rejection
Channels
Propagation conditions TUhigh
Propagation conditions RA
Test limit error rate %
Minimum No. of samples
Test limit error rate %
Minimum No. of samples
TCH/HS
FER
1
10 700
class Ib(RBER)
0,24
184 700
class II(RBER)
4,16
25 500
5,19
24 000
Table 14.4.2a.5-2: Limits for DCS 1 800 and PCS 1 900 co-channel rejection
Channels
Propagation conditions TUhigh
Propagation conditions RA
Test limit error rate %
Minimum No. of samples
Test limit error rate %
Minimum No. of samples
TCH/HS
FER
1
10 700
class Ib(RBER)
0,24
184 700
class II(RBER)
4,08
25 500
5,13
24 000
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14.4.3 Void
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14.4.4 Co-channel rejection - FACCH/F
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14.4.4.1 Definition
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The co-channel 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 an unwanted modulated signal, both signals being at the nominal frequency of the receiver.
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14.4.4.2 Conformance requirement
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At reference co channel interference the FACCH/F FER shall meet the reference interference performance of table 2 in 3GPP TS 05.05 subclause 6.3).
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14.4.4.3 Test purpose
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To verify that the MS does not exceed the conformance requirement under propagation condition TUlow with an allowance for the statistical significance of the test.
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14.4.4.4 Method of test
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14.4.4.4.1 Initial conditions
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A call is set up according to the generic call set up procedure on a TCH/F with an ARFCN in the mid ARFCN range. The power control level is set to maximum power.
The SS transmits Standard Test Signal C1 on the traffic channel (wanted signal).
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14.4.4.4.2 Procedure
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a) In addition to the wanted signal, the SS produces 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. Its amplitude is 9 dB below that of the wanted signal.
The fading characteristic of the wanted and the interfering signal is TUlow.
b) The SS sends a Layer 3 message which does not require a Layer 3 response from the MS. Due to the co-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.
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14.4.4.5 Test requirements
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The error rate measured in this test shall not exceed the test limit error rate values given in table 14-19.
Table 14-19: Limits for co-channel rejection
Channel
Type of measurement
Propagation condition
Test limit error rate %
Minimum No. of samples
FACCH/F
FER
TUlow/No FH
24
25 000
14.4.4a Co-channel rejection - FACCH/F in TIGHTER configuration
14.4.4a.1 Definition
The co-channel 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 an unwanted modulated signal, both signals being at the nominal frequency of the receiver.
14.4.4a.2 Conformance requirement
3GPP TS 45.005 subclause 6.3.5
A MS indicating support for TIGHTER Capability (see 3GPP TS 24.008) shall fulfil the requirements in table 2ad for cochannel interference (C/Ic).
The reference performance shall be:
Table 6.3-6: Reference performance for TIGHTER
For signalling channels (FACCH/F, FACCH/H, SDCCH)
FER:
5 %
14.4.4a.3 Test purpose
For FACCH/F FER, MS shall meet the reference interference performance mentioned in 3GPP TS 45.005 sub clause 6.3.5, for co-channel interference ratio mentioned in table 2ad according to propagation conditions.
14.4.4a.4 Method of test
14.4.4a.4.1 Initial conditions
A call is set up according to the generic call set up procedure on a TCH/F with an ARFCN in the mid ARFCN range. The power control level is set to maximum power.
The SS transmits Standard Test Signal C1 on the traffic channel (wanted signal).
14.4.4a.4.2 Procedure
a) In addition to the wanted signal, the SS produces 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. Its amplitude is set according to the specified reference interference ratio as in table 2ad.
The fading characteristic of the wanted and the interfering signal is TUlow no FH.
b) The SS sends a Layer 3 message which does not require a Layer 3 response from the MS. Due to the co-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.
14.4.4a.5 Test requirements
The error rate measured in this test shall not exceed the test limit error rate values given in table 14.4.4a.5-1.
Table 14.4.4a.5-1: Limits for co-channel rejection
Channel
Type of measurement
Propagation condition
Test limit error rate %
Minimum No. of samples
FACCH/F
FER
TUlow/No FH
5
25 000
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14.4.5 Co-channel rejection - FACCH/H
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14.4.5.1 Definition
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14.4.5.2 Conformance requirement
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At reference co channel interference the FACCH/H FER shall meet the reference interference performance of table 2 in 3GPP TS 05.05 subclause 6.3).
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14.4.5.3 Test purpose
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To verify that the MS does not exceed the conformance requirement under propagation condition TUlow with an allowance for the statistical significance of the test.
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14.4.5.4 Method of test
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14.4.5.4.1 Initial conditions
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A call is set up according to the generic call set up procedure on a TCH with an ARFCN in the mid ARFCN range. For MS supporting half rate speech this shall be a TCH/HS. For MS not supporting TCH/HS one of the supported TCH/(AHS, H4,8, or H2,4) shall be used. The power control level is set to maximum power.
The SS transmits Standard Test Signal C1 on the traffic channel (wanted signal).
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14.4.5.4.2 Procedure
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a) In addition to the wanted signal, the SS produces 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. Its amplitude is 9 dB below that of the wanted signal.
The fading characteristic of the wanted and the interfering signal is TUlow.
b) The SS sends a Layer 3 message which does not require a Layer 3 response from the MS. Due to the co-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/H frames.
NOTE: These frames will not be consecutive but it is expected that the statistical significance of the tests will not be unduly degrade.
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14.4.5.5 Test requirements
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The error rate measured in this test shall not exceed the test limit error rate values given in table 14-20.
Table 14-20: Limits for co-channel rejection
Channel
Type of measurement
Propagation condition
Test limit error rate %
Minimum No. of samples
FACCH/H
FER
TUlow/No FH
24,000
25 000
14.4.5a Co-channel rejection - FACCH/H in TIGHTER configuration
14.4.5a.1 Definition
The co-channel 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 an unwanted modulated signal, both signals being at the nominal frequency of the receiver.
14.4.5a.2 Conformance requirement
3GPP TS 45.005 subclause 6.3.5
A MS indicating support for TIGHTER Capability (see 3GPP TS 24.008) shall fulfil the requirements in table 2ad for cochannel interference (C/Ic).
The reference performance shall be:
Table 6.3-6: Reference performance for TIGHTER
For signalling channels (FACCH/F, FACCH/H, SDCCH)
FER:
5 %
14.4.5a.3 Test purpose
For FACCH/H FER, MS shall meet the reference interference performance mentioned in 3GPP TS 45.005 sub clause 6.3.5, for co-channel interference ratio mentioned in table 2ad according to propagation conditions.
14.4.5a.4 Method of test
14.4.5a.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. For MS supporting half rate speech this shall be a TCH/HS. For MS not supporting TCH/HS one of the supported TCH/(AHS, H4,8, or H2,4) shall be used. The power control level is set to maximum power.
The SS transmits Standard Test Signal C1 on the traffic channel (wanted signal).
14.4.5a.4.2 Procedure
a) In addition to the wanted signal, the SS produces 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. Its amplitude is set according to the specified reference interference ratio as in table 2ad.
The fading characteristic of the wanted and the interfering signal is TUlow no FH.
b) The SS sends a Layer 3 message which does not require a Layer 3 response from the MS. Due to the co-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/H frames.
NOTE: These frames will not be consecutive but it is expected that the statistical significance of the tests will not be unduly degrade.
14.4.5a.5 Test requirements
The error rate measured in this test shall not exceed the test limit error rate values given in table 14.4.5a.5-1.
Table 14.4.5a.5-1: Limits for co-channel rejection
Channel
Type of measurement
Propagation condition
Test limit error rate %
Minimum No. of samples
FACCH/H
FER
TUlow/No FH
5
25 000
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14.4.6 Co-channel rejection - TCH/EFS
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14.4.6.1 Definition
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The co-channel 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 an unwanted modulated signal, both signals being at the nominal frequency of the receiver.
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14.4.6.2 Conformance requirement
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1. At reference co-channel interference the TCH/EFS FER shall meet the reference interference performance of table 2 in 3GPP TS 05.05 subclause 6.3.
2. At reference co-channel interference the TCH/EFS class Ib BER shall meet the reference interference performance of table 2 in 3GPP TS 05.05 subclause 6.3.
3. At reference co-channel interference the TCH/EFS class II BER shall meet the reference interference performance of table 2 in 3GPP TS 05.05 subclause 6.3.
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14.4.6.3 Test purpose
|
1. To verify that the MS does not exceed conformance requirement 1 under propagation condition TUhigh with frequency hopping and TUlow with no frequency hopping with an allowance for the statistical significance of the test.
2. To verify that the MS does not exceed conformance requirement 2 under propagation condition TUhigh with frequency hopping and TUlow with no frequency hopping, with an allowance for the statistical significance of the test.
3. To verify that the MS does not exceed conformance requirement 3 under propagation condition TUhigh with frequency hopping and TUlow with no frequency hopping with an allowance for the statistical significance of the test.
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14.4.6.4 Method of test
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14.4.6.4.1 Initial conditions
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A call is set up according to the generic call set up procedure on a TCH/EFS 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 (wanted signal).
The SS commands the MS to create the traffic channel loop back, signalling erased frames (subclause 36.1.2.1.1.1).
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14.4.6.4.2 Procedure
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a) In addition to the wanted signal, the SS produces 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. Its amplitude is 9 dB below that of the wanted signal.
The fading characteristic of the wanted and the interfering signal is TUlow.
b) The SS compares the modulation 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 determines the number of residual bit error events for the bits of class II, by examining at least the minimum number of samples of consecutive bits of class II. Bits are taken only from those frames not signalled as erased.
d) The SS determines the number of residual bit error events for the bits of the class Ib, by examining 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 at least the minimum number of samples of consecutive frames and assuming a frame is received successfully it is not signalled as erased.
f) Steps a) to e) are repeated except that in step a) both the wanted and interfering signal are TUhigh hopping and the SS commands the MS into hopping mode. A hopping pattern covering at least 10 frequencies in a range not exceeding 5 MHz is used. The hopping pattern is centred around an ARFCN in the Mid ARFCN range.
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14.4.6.5 Test requirements
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The error rate measured in this test shall not exceed the test limit error rate values given in table 14-21.
Table 14-21: Limits for co-channel rejection
Channel
Type of measurement
Propagation condition
Test limit error rate %
Minimum No. of samples
TCH/EFS
FER
TUlow/No FH
24
25 000
TCH/EFS Class Ib
RBER
TUlow/No FH
0,209
3 300 000
TCH/EFS Class II
RBER
TUlow/No FH
3,039
2 000 000
TCH/EFS
FER
TUhigh/FH
3,357
17 800
TCH/EFS class Ib
RBER
TUhigh/FH
0,115
2 000 000
TCH/EFS class II
RBER
TUhigh/FH
8,333
1 200 000
14.4.6a Co-channel rejection - TCH/EFS in TIGHTER configuration
14.4.6a.1 Definition
The co-channel 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 an unwanted modulated signal, both signals being at the nominal frequency of the receiver.
14.4.6a.2 Conformance requirement
3GPP TS 45.005 subclause 6.3.5
A MS indicating support for TIGHTER Capability (see 3GPP TS 24.008) shall fulfil the requirements in table 2ad for cochannel interference (C/Ic).
The reference performance shall be:
Table 6.3-6: Reference performance for TIGHTER
For speech channels (TCH/FS, TCH/HS, TCH/EFS, TCH/AFSx, TCH/AHSx, TCH/WFSx )
FER:
1 %
In addition to table 6.3-6, for speech channels the residual class Ib BER and residual class II BER performance shall not exceed the specified values in table 2ad at the corresponding interference ratio C/Ic.
14.4.6a.3 Test purpose
1. For TCH/EFS FER, MS shall meet the reference interference performance mentioned in 3GPP TS 45.005 sub clause 6.3.5, for co-channel interference ratio mentioned in table 2ad according to propagation conditions.
2. At reference co-channel interference the TCH/EFS class Ib BER shall meet the reference interference performance of table 2ad in 3GPP TS 45.005.
3. At reference co-channel interference the TCH/EFS class II BER shall meet the reference interference performance of table 2ad in 3GPP TS 45.005.
14.4.6a.4 Method of test
14.4.6a.4.1 Initial conditions
A call is set up according to the generic call set up procedure on a TCH/EFS 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 (wanted signal).
The SS commands the MS to create the traffic channel loop back, signalling erased frames (subclause 36.1.2.1.1.1).
14.4.6a.4.2 Procedure
a) In addition to the wanted signal, the SS produces 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. Its amplitude is set according to the specified reference interference ratio as in table 2ad.
The fading characteristic of the wanted and the interfering signal is TUlow no FH.
b) The SS compares the modulation 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 determines the number of residual bit error events for the bits of class II, by examining at least the minimum number of samples of consecutive bits of class II. Bits are taken only from those frames not signalled as erased.
d) The SS determines the number of residual bit error events for the bits of the class Ib, by examining 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 at least the minimum number of samples of consecutive frames and assuming a frame is received successfully it is not signalled as erased.
f) Steps a) to e) are repeated except that in step a) both the wanted and interfering signal are TUhigh hopping and the SS commands the MS into hopping mode. A hopping pattern covering at least 10 frequencies in a range not exceeding 5 MHz is used. The hopping pattern is centred around an ARFCN in the Mid ARFCN range.
14.4.6a.5 Test requirements
The error rate measured in this test shall not exceed the test limit error rate values given in table 14.4.6a.5-1 and 14.4.6a.5-2.
Table 14.4.6a.5-1: Limits for GSM 850 and GSM 900 co-channel rejection
Channels
Propagation conditions TUhigh/FH
Propagation conditions TUlow/No FH
Test limit error rate %
Minimum No. of samples
Test limit error rate %
Minimum No. of samples
TCH/EFS
FER
1
17 800
1
25 000
class Ib(RBER)
0,09
2 000 000
0,19
3 300 000
class II(RBER)
4,92
1 200 000
0,62
2 000 000
Table 14.4.6a.5-2: Limits for DCS 1 800 and PCS 1 900 co-channel rejection
Channels
Propagation conditions TUhigh/FH
Propagation conditions TUlow/No FH
Test limit error rate %
Minimum No. of samples
Test limit error rate %
Minimum No. of samples
TCH/EFS
FER
1
17 800
1
25 000
class Ib(RBER)
0,09
2 000 000
0,19
3 300 000
class II(RBER)
4,54
1 200 000
0,62
2 000 000
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14.4.7 Receiver performance in the case of frequency hopping and co‑channel interference on one carrier
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14.4.7.1 Definition
|
The GSM receiver is specified to be able to handle one out of four carriers being strongly interfered with, if frequency hopping is applied. This is used in networks to increase the capacity.
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14.4.7.2 Conformance Requirement
|
Under the following conditions:
- a useful signal, cyclic frequency hopping over four carriers under static conditions, with equal input levels 20 dB above reference sensitivity level;
- a random, continuous, GMSK-modulated interfering signal on only one of the carriers at a level 10 dB higher than the useful signal,
the FER for TCH/FS shall be less than 5%; 3GPP TS 05.05 subclause 6.6.
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14.4.7.3 Test Purpose
|
To verify that the MS does not exceed the conformance requirement with an allowance for the statistical significance of the test.
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14.4.7.4 Method Of Test
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14.4.7.4.1 Initial conditions
|
A call is set up according to the generic call set up procedure on a TCH/FS channel in hopping mode, power control level set to maximum power. A cyclic hop pattern covering four frequencies with a minimum carrier distance of 600 kHz is used.
The SS transmits Standard Test Signal C1 on the traffic channel with a power level 20 dB above reference sensitivity level (wanted signal). No fading is applied.
The SS commands the MS to create the traffic channel loop back, signalling erased frames.
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14.4.7.4.2 Test Procedure
|
a) In addition to the wanted signal, the SS produces an independent, uncorrelated interfering signal, Standard Test Signal I1 (unwanted signal) on one of the hopping frequencies of the wanted signal, and on the timeslot used by the wanted signal. The unwanted signal is continuous and has no fixed relationship with the bit transitions of the wanted signal. Its amplitude is 10 dB above that of the wanted signal. No fading characteristics are applied.
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 determines the frame erasure events by examining at least the minimum number of samples of consecutive frames and assuming a frame is received successfully it is not signalled as erased.
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14.4.7.5 Test requirements
|
The error rate measured in this test shall not exceed the test limit error rate value given in the following table.
Channel
Type of measurement
Propagation condition
Test limit error rate (%)
Minimum No. of samples
TCH/FS
FER
Static
6.1
3 300
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14.4.8 Co-channel rejection - TCH/AFS
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14.4.8.1 Definition
|
The co-channel 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 an unwanted modulated signal, both signals being at the nominal frequency of the receiver.
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14.4.8.2 Conformance requirement
|
1. At reference co-channel interference the TCH/AFS FER shall meet the reference interference performance of table 2 in 3GPP TS 05.05 subclause 6.3.
2. At reference co-channel interference the TCH/AFS class Ib BER shall meet the reference interference performance of table 2 in 3GPP TS 05.05 subclause 6.3.
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14.4.8.3 Test purpose
|
1. To verify that the MS does not exceed conformance requirement 1 under propagation condition TUhigh with frequency hopping and TUlow with no frequency hopping with an allowance for the statistical significance of the test.
2. To verify that the MS does not exceed conformance requirement 2 under propagation condition TUhigh with frequency hopping and TUlow with no frequency hopping, with an allowance for the statistical significance of the test.
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51.010-1
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14.4.8.4 Method of test
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51.010-1
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14.4.8.4.1 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. RADIO_LINK_TIMEOUT is set to maximum.
The multirate configuration indicates the use of a codec set limited to 7,95 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).
Specific PICS Statements:
- DARP phase 1 supported (TSPC_DARP_Phase1)
- DARP phase 2 supported (TSPC_DARP_Phase2)
PIXIT Statements:
-
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51.010-1
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14.4.8.4.2 Procedure
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a) In addition to the wanted signal, the SS produces 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 is set to the reference interference ratio (+9 dB), meaning that the amplitude of the interferer is 9 dB below that of the wanted signal.
The fading characteristic of the wanted and the interfering signal is TUlow (TU3 for T-GSM 810, GSM850 and GSM900, TU1,5 for GSM1800 and GSM1900).
b) The SS compares the modulation 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 determines the number of residual bit error events for the bits of the class Ib, by examining at least the minimum number of samples of consecutive bits of class Ib. Bits are only taken from those frames not signalled as erased.
d) The SS also determines the frame erasure events by examining at least the minimum number of samples of consecutive frames and assuming a frame is received successfully it is not signalled as erased.
e) 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.
f) The interference ratio is set to 3 dB below the reference interference ratio (+9 dB ‑ 3 dB), meaning that the amplitude of the interferer is 6 dB below that of the wanted signal.
g) 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.
h) If the MS is DARP capable, the following steps are omitted.
i) The SS commands the MS into hopping mode. A hopping pattern covering at least 10 frequencies in a range not exceeding 5 MHz is used. The hopping pattern is centred on an ARFCN in the Mid ARFCN range. The interference ratio is set to the reference interference ratio (+9 dB), meaning that the amplitude of the interferer is 9 dB below that of the wanted signal. The fading characteristic of the wanted and the interfering signal is TUHigh (TU50 for T-GSM 810, GSM850 and GSM900, GSM1800 and GSM1900).
j) The SS uses a Channel Mode Modify procedure to change the active codec set to 12,2 kbit/s and steps b) to d) are repeated.
k) The SS uses a Channel Mode Modify procedure to change the active codec set to 10,2 kbit/s and steps b) to d) are repeated.
l) The SS uses a Channel Mode Modify procedure to change the active codec set to 7,4 kbit/s and steps b) to d) are repeated.
m) The interference ratio is set to 3 dB below the reference interference ratio (+9 dB ‑ 3 dB), meaning that the amplitude of the interferer is 6 dB below that of the wanted signal.
n) 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.
o) 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.
Maximum/Minimum Duration of Test
Non-DARP MS
- Maximum: 3 hours (GSM850, GSM900), 4 hours (DCS1800, PCS1900).
- Minimum: 1 hour (GSM850, GSM900, DCS1800, PCS1900).
DARP MS
- Maximum/minimum: 42 minutes (GSM850, GSM900, DCS1800, PCS1900).
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51.010-1
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14.4.8.5 Test requirements
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Testing the Co‑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 limit lines refer to Annex A7.
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 14‑1.
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 for fading profiles greater than 5km/h, and 250 wavelengths are crossed for fading profiles less than or equal to 5km/h. 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 14-48: Minimum test times due to TU low fading conditions
Full Rate 3 km/h
Frequency
0,4
0,7
0,85
0,9
1,8
1,9
GHz
Wavelenth
0,75
0,43
0,35
0,33
-
-
m
min test time
1800
1029
847
800
-
-
S
0:30:00
0:17:09
0:14:07
0:13:20
-
-
hh:mm:ss
Full Rate 1,5 km/h
Frequency
0,4
0,7
0,85
0,9
1,8
1,9
GHz
Wavelenth
-
-
-
-
0,17
0,16
m
min test time
-
-
-
-
800
758
s
-
-
-
-
0:13:20
0:12:38
hh:mm:ss
Table 14-49: 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
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 rate measured in this test shall be tested according to the values given in tables 14-49 or 14-50.
Co-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 45.005).
Table 14-49: Statistical test limits for GSM 400, GSM 700, T-GSM 810, GSM 850 and GSM 900 TU low no FH
TU low 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 7.95
frames
7950
50
0,130000
0,160420
2151
43
00:00:43
Class1b
7950
4200
0,006600
0,008144
42360
10
00:00:10
AFS 5.9
frames
5900
50
0,100000
0,123400
2796
56
00:00:56
Class1b
5900
3150
0,003800
0,004689
73573
23
00:00:23
AFS 4.75
frames @-3dB
4750
50
0,170000
0,209780
1645
33
00:00:33
Class1b@-3dB
4750
2800
0,006200
0,007651
45093
16
00:00:16
Table 14-50: Statistical test limits for GSM 400, GSM 700, GSM 850 and GSM 900 TU high with FH
TU high 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
0,035000
0,043190
7988
160
00:02:40
Class1b
12200
8150
0,017000
0,020978
16446
2
00:00:02
AFS 10.2
frames
10200
50
0,014000
0,017276
19970
399
00:06:39
Class1b
10200
6950
0,002100
0,002591
133133
19
00:00:19
AFS 7.4
frames
7400
50
0,001600
0,001974
174737
3495
00:58:15
Class1b
7400
4350
0,000320
0,000395
873683
201
00:03:21
AFS 6.7
Frames@ -3dB
6700
50
0,012000
0,014808
23298
466
00:07:46
Class1b@ -3dB
6700
3950
0,006000
0,007404
46596
12
00:00:12
AFS 5.15
frames @-3dB
5150
50
0,004700
0,005800
59485
1190
00:19:50
Class1b@-3dB
5150
2700
0,001100
0,001357
254162
94
00:01:34
Table 14-51: Statistical test limits for DCS 1 800 and PCS 1 900 TU low no FH
TU low 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)
AFS 7.95
frames
7950
50
0,130000
0,160420
2151
43
00:00:43
Class1b
7950
4200
0,006700
0,008268
41728
10
00:00:10
AFS 5.9
frames
5900
50
0,100000
0,123400
2796
56
00:00:56
Class1b
5900
3150
0,003800
0,004689
73573
23
00:00:23
AFS 4.75
frames @-3dB
4750
50
0,170000
0,209780
1645
33
00:00:33
Class1b@-3dB
4750
2800
0,006100
0,007527
45833
16
00:00:16
Table 14-52: Statistical test limits for DCS 1 800 and PCS 1 900 TU high with FH
TU high 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)
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 10.2
frames
10200
50
0,009800
0,012093
28528
571
00:09:31
Class1b
10200
6950
0,001700
0,002098
164458
24
00:00:24
AFS 7.4
frames
7400
50
0,000830
0,001024
336842
6737
01:52:17
Class1b
7400
4350
0,000200
0,000247
1397893
321
00:05:21
AFS 6.7
Frames @-3dB
6700
50
0,008200
0,010119
34094
682
00:11:22
Class1b@-3dB
6700
3950
0,005100
0,006293
54819
14
00:00:14
AFS 5.15
frames @-3dB
5150
50
0,002600
0,003208
107530
2151
00:35:51
Class1b@-3dB
5150
2700
0,000720
0,000888
388304
144
00:02:24
14.4.8a Co-channel rejection - TCH/AFS in TIGHTER configuration
14.4.8a.1 Definition
The co-channel 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 an unwanted modulated signal, both signals being at the nominal frequency of the receiver.
14.4.8a.2 Conformance requirement
3GPP TS 45.005 subclause 6.3.5
A MS indicating support for TIGHTER Capability (see 3GPP TS 24.008) shall fulfil the requirements in table 2ad for co channel interference (C/Ic).
The reference performance shall be:
Table 6.3-6: Reference performance for TIGHTER
For speech channels (TCH/FS, TCH/HS, TCH/EFS, TCH/AFSx, TCH/AHSx, TCH/WFSx )
FER:
1 %
In addition to table 6.3-6, for speech channels the residual class Ib BER and residual class II BER performance shall not exceed the specified values in table 2ad at the corresponding interference ratio C/Ic.
14.4.8a.3 Test purpose
1. For TCH/AFS FER, MS shall meet the reference interference performance mentioned in 3GPP TS 45.005 sub clause 6.3.5, for co-channel interference ratio mentioned in table 2ad according to propagation conditions.
2. At reference co-channel interference the TCH/AFS class Ib BER shall meet the reference interference performance of table 2ad in 3GPP TS 45.005.
14.4.8a.4 Method of test
14.4.8a.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. RADIO_LINK_TIMEOUT is set to maximum.
The multirate configuration indicates the use of a codec set limited to 7,95 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).
Specific PICS Statements:
-
PIXIT Statements:
-
14.4.8a.4.2 Procedure
a) The fading characteristic of the wanted and the interfering signal is TUlow no FH.
b) In addition to the wanted signal, the SS produces 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. Its amplitude is set according to the specified reference interference ratio as in table 2ad.
c) The SS compares the modulation 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 determines the number of residual bit error events for the bits of the class Ib, by examining 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 at least the minimum number of samples of consecutive frames and assuming a frame is received successfully it is not signalled as erased.
f) 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.
g) 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.
14.4.8a.5 Test requirements
Testing the Co‑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 definitions of limit lines refer to Annex A7.
Limit checking
Before limit checking is valid the minimum test time due to fading needs to be considered:
Table 14.4.8a.5-1: Minimum test times due to TU low fading conditions
Full Rate 3 km/h
Frequency
0,4
0,7
0,85
0,9
1,8
1,9
GHz
Wavelenth
0,75
0,43
0,35
0,33
-
-
M
min test time
1800
1029
847
800
-
-
S
0:30:00
0:17:09
0:14:07
0:13:20
-
-
hh:mm:ss
Full Rate 1,5 km/h
Frequency
0,4
0,7
0,85
0,9
1,8
1,9
GHz
Wavelenth
-
-
-
-
0,17
0,16
M
min test time
-
-
-
-
800
758
S
-
-
-
-
0:13:20
0:12:38
hh:mm:ss
The error rate measured in this test shall be tested according to the values given in tables 14.4.8a.5-3 and 14.4.8a.5-4.
Table 14.4.8a.5-3: Statistical test limits for GSM 850 and GSM 900 TU low no FH
TU low 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 7.95
frames
7950
50
0,010000
0.012340
27958
560
00:09:20
Class1b
7950
4200
0.001100
0.001357
254163
61
00:01: 01
AFS 5.9
frames
5900
50
0,010000
0.012340
27958
560
00:09: 20
Class1b
5900
3150
0.000500
0.000617
559158
178
00:02:58
AFS 4.75
frames
4750
50
0,010000
0.012340
27958
560
00:09:20
Class1b
4750
2800
0.000600
0.000740
465965
167
00:02:47
Table 14.4.8a.5-4: Statistical test limits for DCS 1800 and PCS 1900 TU low no FH
TU low 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)
AFS 7.95
frames
7950
50
0.010000
0.012340
27958
560
00:09: 20
Class1b
7950
4200
0.001000
0.001234
279579
67
00:01:07
AFS 5.9
frames
5900
50
0.010000
0.012340
27958
560
00:09: 20
Class1b
5900
3150
0.000700
0.000864
399399
127
00:02:07
AFS 4.75
frames
4750
50
0.010000
0.012340
27958
560
00:09: 20
Class1b
4750
2800
0.000600
0.000740
465965
167
00:02:47
14.4.9 to 14.4.15 Void
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51.010-1
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14.4.16 Co-channel rejection - TCH/AHS
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683b5b8a98f7b1390ddd5516ea9247a2
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51.010-1
|
14.4.16.1 Definition
|
-
|
683b5b8a98f7b1390ddd5516ea9247a2
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51.010-1
|
14.4.16.2 Conformance requirement
|
1. At reference co channel interference, the TCH/AHS FER shall meet the reference interference performance of table 2 in 3GPP TS 05.05 subclause 6.3.
2. At reference co channel interference, the TCH/AHS class Ib BER (BFI=0) shall meet the reference interference performance of table 2 in 3GPP TS 05.05 subclause 6.3.
3. At reference co channel interference, the TCH/AHS class II BER (BFI=0) shall meet the reference interference performance of table 2 in 3GPP TS 05.05 subclause 6.3.
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683b5b8a98f7b1390ddd5516ea9247a2
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51.010-1
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14.4.16.3 Test purpose
|
1. To verify that the MS does not exceed conformance requirement 1, under propagation conditions TUhigh without frequency hopping, with an allowance for the statistical significance of the test.
2. To verify that the MS does not exceed conformance requirement 2, under propagation conditions TUhigh without frequency hopping, with an allowance for the statistical significance of the test.
3. To verify that the MS does not exceed conformance requirement 3, under propagation conditions TUhigh without frequency hopping, with an allowance for the statistical significance of the test.
|
683b5b8a98f7b1390ddd5516ea9247a2
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51.010-1
|
14.4.16.4 Method of test
| |
683b5b8a98f7b1390ddd5516ea9247a2
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51.010-1
|
14.4.16.4.1 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 7,95 kbit/s.
The SS transmits Standard Test Signal C1 on the traffic channel (wanted signal).
|
683b5b8a98f7b1390ddd5516ea9247a2
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51.010-1
|
14.4.16.4.2 Procedure
|
a) In addition to the wanted signal, the SS produces 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 is set to 3 dB above the reference interference ratio (+9 dB + 3 dB), meaning that the amplitude of the interferer is 12 dB below that of the wanted signal.
b) The fading characteristic of the wanted and the interfering signal is set to TUhigh. The SS commands the MS into non hopping mode.
c) The SS commands the MS to create traffic channel loop back signalling erased frames.
NOTE: Frames marked with BFI=1 are signalled as erased on the uplink.
d) The SS compares the modulation 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.
e) The SS determines the number of residual bit error events for the bits of class II, by examining at least the minimum number of samples of consecutive bits of class II. Bits are taken only from those frames not signalled as erased.
f) The SS determines the number of residual bit error events for the bits of the class Ib, by examining at least the minimum number of samples of consecutive bits of class Ib. Bits are only taken from those frames not signalled as erased.
g) The SS also determines the frame erasure events by examining at least the minimum number of samples of consecutive frames and assuming a frame is received successfully it is not signalled as erased.
h) The SS uses a Channel Mode Modify procedure to change the active codec set to 7,4 kbit/s and steps b) to g) are repeated.
i) The SS uses a Channel Mode Modify procedure to change the active codec set to 6,7 kbit/s and steps b) to g) are repeated.
j) The interference ratio is set to the reference interference ratio (+9 dB), meaning that the amplitude of the interferer is 9 dB below that of the wanted signal. The SS uses a Channel Mode Modify procedure to change the active codec set to 5,9 kbit/s and steps b) to g) are repeated.
k) The SS uses a Channel Mode Modify procedure to change the active codec set to 5,15 kbit/s and steps b) to g) are repeated.
l) The SS uses a Channel Mode Modify procedure to change the active codec set to 4,75 kbit/s and steps b) to g) are repeated.
Maximum/Minimum Duration of Test
Statistical test method, pre Rel-5 MS
Maximum: 40 minutes (GSM850), 38 minutes (GSM900), 20 minutes (DCS1800), 19 minutes (PCS1900).
Minimum: 40 minutes (GSM850), 38 minutes (GSM900), 19 minutes (DCS1800), 18 minutes (PCS1900).
Statistical test method, Rel-5 onwards MS
Maximum: 40 minutes (GSM850), 38 minutes (GSM900), 21 minutes (DCS1800), 20 minutes (PCS1900).
Minimum: 40 minutes (GSM850), 38 minutes (GSM900), 19 minutes (DCS1800), 18 minutes (PCS1900).
|
683b5b8a98f7b1390ddd5516ea9247a2
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51.010-1
|
14.4.16.5 Test requirements
|
Testing the Co‑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 limit lines refer to Annex 6.2
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 14‑1.
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. No early pass/fail decision is allowed until the minimum test time due to fading has elapsed.
Table 14-53: 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
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
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 rate measured in this test shall be tested according to the values given in tables 14-54 or 14-55.
Co-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 45.005).
Table 14-54: Statistical test limits for GSM 400, GSM 700, T-GSM 810, GSM 850 and GSM 900
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 7.95
frames @+3dB
7950
50
0,067000
0,082678
4173
83
00:01:23
Class1b @+3dB
7950
2800
0,010000
0,012340
27958
10
00:00:10
Class II @+3dB
7950
1800
0,032000
0,039488
8737
5
00:00:05
AHS 7.4
frames @+3dB
7400
50
0,047000
0,057998
5948
119
00:01:59
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 5.9
frames
5900
50
0,071000
0,087614
3938
79
00:01:19
Class1b
5900
2350
0,005700
0,007034
49049
21
00:00:21
Class II
5900
800
0,065000
0,080210
4301
5
00:00:05
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:
3228
Rel-5:
3994
Pre Rel-5:
6
Rel-5:
7
Pre Rel-5:
00:00:06
Rel-5:
00:00:07
Table 14-55: Statistical test limits for DCS 1 800 and PCS 1 900
TU high no FH
1.8 and 1.9GHz
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 7.95
frames @+3dB
7950
50
0,067000
0,082678
4173
83
00:01:23
Class1b @+3dB
7950
2800
0,010000
0,012340
27958
10
00:00:10
Class II @+3dB
7950
1800
Pre Rel-5:
0,033000
Rel-5:
0,031000
Pre Rel-5:
0,040722
Rel-5:
0,038254
Pre Rel-5:
8473
Rel-5:
9019
Pre Rel-5:
5
Rel-5:
5
Pre Rel-5:
00:00:05
Rel-5:
00:00:05
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:
7
Pre Rel-5:
00:00:06
Rel-5:
00:00:07
AHS 5.9
frames
5900
50
0,077000
0,095018
3631
73
00:01:13
Class1b
5900
2350
0,006000
0,007404
46596
20
00:00:20
Class II
5900
800
Pre Rel-5:
0,069000
Rel-5:
0,064000
Pre Rel-5:
0,085146
Rel-5:
0,078976
Pre Rel-5:
4052
Rel-5:
4368
Pre Rel-5:
5
Rel-5:
5
Pre Rel-5:
00:00:05
Rel-5:
00:00:05
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
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.4.16.5.2 Fixed testing of BER/BLER performance with minimum number of samples
|
The error rate measured in this test shall not exceed the test limit error rate values given in table 14-16 or table 14-17.
Table 14-16: Fixed limits for GSM 400, GSM 700, T-GSM 810, GSM 850 and GSM 900 co-channel rejection
Channel
Propagation condition
Test limit error rate %
Minimum No. of samples
TCH/AHS 7.95 (FER)
TUhigh/No FH@+3dB
8.44
8960
TCH/AHS 7.95 Class Ib (RBER)
TUhigh/No FH@+3dB
1.62
60000
TCH/AHS 7.95 Class II (RBER)
TUhigh/No FH@+3dB
4.032
18750
TCH/AHS 7.4 (FER)
TUhigh/No FH@+3dB
6.048
12500
TCH/AHS 7.4 Class Ib (RBER)
TUhigh/No FH@+3dB
0.643
117650
TCH/AHS 7.4 Class II (RBER)
TUhigh/No FH@+3dB
4.158
18200
TCH/AHS 6.7 (FER)
TUhigh/No FH@+3dB
2.898
23000
TCH/AHS 6.7 Class Ib (RBER)
TUhigh/No FH@+3dB
0.491
136000
TCH/AHS 6.7 Class II (RBER)
TUhigh/No FH@+3dB
4.536
15000
TCH/AHS 5.9 (FER)
TUhigh/No FH
8.946
8450
TCH/AHS 5.9 Class Ib (RBER)
TUhigh/No FH
0.718
105270
TCH/AHS 5.9 Class II (RBER)
TUhigh/No FH
8.19
9230
TCH/AHS 5.15 (FER)
TUhigh/No FH
4.158
18190
TCH/AHS 5.15 Class Ib (RBER)
TUhigh/No FH
0.756
100000
TCH/AHS 5.15 Class II (RBER)
TUhigh/No FH
8.694
8700
TCH/AHS 4.75 (FER)
TUhigh/No FH
Pre Rel-5:
3.15
Rel-5:
2.268
Pre Rel-5:
24000
Rel-5:
33333
TCH/AHS 4.75 Class Ib (RBER)
TUhigh/No FH
Pre Rel-5:
0.365
Rel-5:
0.277
Pre Rel-5:
206900
Rel-5:
272730
TCH/AHS 4.75 Class II (RBER)
TUhigh/No FH
Pre Rel-5:
9.45
Rel-5:
8.82
Pre Rel-5:
8000
Rel-5:
8580
Table 14-17: Fixed limits for DCS 1800 and PCS 1 900 co-channel rejection
Channel
Propagation condition
Test limit error rate %
Minimum No. of samples
TCH/AHS 7.95 (FER)
TUhigh/No FH@+3dB
8.442
8960
TCH/AHS 7.95 Class Ib (RBER)
TUhigh/No FH@+3dB
1.26
60000
TCH/AHS 7.95 Class II (RBER)
TUhigh/No FH@+3dB
Pre Rel-5:
4.158
Rel-5:
3.906
Pre Rel-5:
18190
Rel-5:
19355
TCH/AHS 7.4 (FER)
TUhigh/No FH@+3dB
Pre Rel-5:
6.804
Rel-5:
6.174
Pre Rel-5:
11120
Rel-5:
12250
TCH/AHS 7.4 Class Ib (RBER)
TUhigh/No FH@+3dB
Pre Rel-5:
0.756
Rel-5:
0.63
Pre Rel-5:
100000
Rel-5:
117730
TCH/AHS 7.4 Class II (RBER)
TUhigh/No FH@+3dB
Pre Rel-5:
4.41
Rel-5:
4.158
Pre Rel-5:
17150
Rel-5:
18200
TCH/AHS 6.7 (FER)
TUhigh/No FH@+3dB
3.15
24000
TCH/AHS 6.7 Class Ib (RBER)
TUhigh/No FH@+3dB
0.479
157900
TCH/AHS 6.7 Class II (RBER)
TUhigh/No FH@+3dB
Pre Rel-5:
4.914
Rel-5:
4.41
Pre Rel-5:
15390
Rel-5:
17150
TCH/AHS 5.9 (FER)
TUhigh/No FH
9.702
7800
TCH/AHS 5.9 Class Ib (RBER)
TUhigh/No FH
0.756
100000
TCH/AHS 5.9 Class II (RBER)
TUhigh/No FH
Pre Rel-5:
8.694
Rel-5:
8.064
Pre Rel-5:
8700
Rel-5:
9375
TCH/AHS 5.15 (FER)
TUhigh/No FH
4.788
15800
TCH/AHS 5.15 Class Ib (RBER)
TUhigh/No FH
0.831
90910
TCH/AHS 5.15 Class II (RBER)
TUhigh/No FH
8.568
8830
TCH/AHS 4.75 (FER)
TUhigh/No FH
Pre Rel-5:
3.528
Rel-5:
2.646
Pre Rel-5:
21430
Rel-5:
28580
TCH/AHS 4.75 Class Ib (RBER)
TUhigh/No FH
0.315
240000
TCH/AHS 4.75 Class II (RBER)
TUhigh/No FH
Pre Rel-5:
9.45
Rel-5:
8.82
Pre Rel-5:
8000
Rel-5:
8580
14.4.16a Co-channel rejection - TCH/AHS in TIGHTER configuration
14.4.16a.1 Definition
The co-channel 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 an unwanted modulated signal, both signals being at the nominal frequency of the receiver.
14.4.16a.2 Conformance requirement
3GPP TS 45.005 subclause 6.3.5
A MS indicating support for TIGHTER Capability (see 3GPP TS 24.008) shall fulfil the requirements in table 2ad for co channel interference (C/Ic).
The reference performance shall be:
Table 6.3-6: Reference performance for TIGHTER
For speech channels (TCH/FS, TCH/HS, TCH/EFS, TCH/AFSx, TCH/AHSx, TCH/WFSx )
FER:
1 %
In addition to table 6.3-6, for speech channels the residual class Ib BER and residual class II BER performance shall not exceed the specified values in table 2ad at the corresponding interference ratio C/Ic.
14.4.16a.3 Test purpose
1. For TCH/AHS FER, MS shall meet the reference interference performance mentioned in 3GPP TS 45.005 sub clause 6.3.5, for co-channel interference ratio mentioned in table 2ad according to propagation conditions.
2. At reference co-channel interference the TCH/AHS class Ib BER shall meet the reference interference performance of table 2ad in 3GPP TS 45.005.
3. At reference co-channel interference the TCH/AHS class II BER shall meet the reference interference performance of table 2ad in 3GPP TS 45.005.
14.4.16a.4 Method of test
14.4.16a.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 7,95 kbit/s.
The SS transmits Standard Test Signal C1 on the traffic channel (wanted signal).
14.4.16a.4.2 Procedure
a) In addition to the wanted signal, the SS produces 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. Its amplitude is set according to the specified reference interference ratio as in table 2ad.
b) The fading characteristic of the wanted and the interfering signal is set to TUhigh. The SS commands the MS into non hopping mode.
c) The SS commands the MS to create traffic channel loop back signalling erased frames.
NOTE: Frames marked with BFI=1 are signalled as erased on the uplink.
d) The SS compares the modulation 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.
e) The SS determines the number of residual bit error events for the bits of class II, by examining at least the minimum number of samples of consecutive bits of class II. Bits are taken only from those frames not signalled as erased.
f) The SS determines the number of residual bit error events for the bits of the class Ib, by examining at least the minimum number of samples of consecutive bits of class Ib. Bits are only taken from those frames not signalled as erased.
g) The SS also determines the frame erasure events by examining at least the minimum number of samples of consecutive frames and assuming a frame is received successfully it is not signalled as erased.
h) The SS uses a Channel Mode Modify procedure to change the active codec set to 7,4 kbit/s and steps b) to g) are repeated.
i) The SS uses a Channel Mode Modify procedure to change the active codec set to 6,7 kbit/s and steps b) to g) are repeated.
j) The SS uses a Channel Mode Modify procedure to change the active codec set to 5,9 kbit/s and steps b) to g) are repeated.
k) The SS uses a Channel Mode Modify procedure to change the active codec set to 5,15 kbit/s and steps b) to g) are repeated.
l) The SS uses a Channel Mode Modify procedure to change the active codec set to 4,75 kbit/s and steps b) to g) are repeated.
Maximum/Minimum Duration of Test
Maximum: 40 minutes (GSM850), 38 minutes (GSM900), 21 minutes (DCS1800), 20 minutes (PCS1900).
Minimum: 40 minutes (GSM850), 38 minutes (GSM900), 19 minutes (DCS1800), 18 minutes (PCS1900).
14.4.16a.5 Test requirements
Testing the Co‑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 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 14.4.16a.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
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
The error rate measured in this test shall be tested according to the values given in table’s 14.4.16a.5-2 or 14.4.16a.5-3.
Table 14.4.16a.5-2: Statistical test limits for GSM 850 and GSM 900
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 7.95
frames @+3dB
7950
50
0,067000
0,082678
4173
83
00:01:23
Class1b @+3dB
7950
2800
0,010000
0,012340
27958
10
00:00:10
Class II @+3dB
7950
1800
0,032000
0,039488
8737
5
00:00:05
AHS 7.4
frames @+3dB
7400
50
0,048000
0,057998
5948
119
00:01:59
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 5.9
frames
5900
50
0,071000
0,087614
3938
79
00:01:19
Class1b
5900
2350
0,005700
0,007034
49049
21
00:00:21
Class II
5900
800
0,065000
0,080210
4301
5
00:00:05
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 14.4.16a.5-3: Statistical test limits for DCS 1 800 and PCS 1 900
TU high no FH
1.8 and 1.9GHz
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 7.95
frames @+3dB
7950
50
0,067000
0,082678
4173
83
00:01:23
Class1b @+3dB
7950
2800
0,010000
0,012340
27958
10
00:00:10
Class II @+3dB
7950
1800
0,031000
0,038254
9019
5
00:00:05
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
7
00:00:07
AHS 5.9
frames
5900
50
0,077000
0,095018
3631
73
00:01:13
Class1b
5900
2350
0,006000
0,007404
46596
20
00:00:20
Class II
5900
800
0,064000
0,078976
4368
5
00:00:05
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
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.4.17 Co-channel rejection - TCH/AFS-INB
| |
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.4.17.1 Definition
|
The co-channel 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 an unwanted modulated signal, both signals being at the nominal frequency of the receiver.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.4.17.2 Conformance requirement
|
1. At reference co-channel interference the TCH/AFS-INB FER shall meet the reference interference performance of table 2 in 3GPP TS 45.005 subclause 6.3.
The delays associated with Loop I remain constant for all of the following circumstances:
- For a given MS implementation.
- For the duration of the MS being powered on.
3GPP TS 44.014 subclause 5.1.7a.1.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.4.17.3 Test purpose
|
1. To verify that the MS does not exceed conformance requirement 1 under propagation condition TUhigh with frequency hopping and TUlow with no frequency hopping with an allowance for the statistical significance of the test.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.4.17.4 Method of test
| |
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.4.17.4.1 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 the following set of codecs modes:
Codec Mode
TCH/AFS in kbit/s
CODEC_MODE_4
12,2
CODEC_MODE_3
7,95
CODEC_MODE_2
5,9
CODEC_MODE_1
4,75
The Initial Codec Mode shall be set to the lowest codec mode (CODEC_MODE_1).
The following decision threshold and hysteresis values in terms of normalized carrier to interference ratio (C/Inorm), shall apply for Codec Mode Command / Request (MC, MR):
MC'/MR'
THR_MC_Dn(MC)/
THR_MR_Dn(MR)
THR_MC_Up(MC)/
THR_MR_Up(MR)
CODEC_MODE_4
18,5 dB
+
CODEC_MODE_3
12,5 dB
20,5 dB
CODEC_MODE_2
6,5 dB
14,5 dB
CODEC_MODE_1
8,5 dB
The SS transmits Standard Test Signal C1 on the traffic channel using the Initial Codec Mode (ICM).
The SS continuously sends a CMC corresponding to the highest codec mode (CODEC_MODE_4).
The SS commands the MS to loop back in band signalling code words by closing a Loop I.
Specific PICS Statements:
- AMR half rate speech supported (TSPC_AddInfo_Half_rate_version_3)
PIXIT Statements:
-
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.4.17.4.2 Procedure
|
a) In addition to the wanted signal, the SS produces 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. Its amplitude is 6 dB below that of the wanted signal (9 dB – 3 dB less attenuation on the interfering signal).
The fading characteristic of the wanted and the interfering signal is TUlow.
b) The SS shall change the Codec Mode Indication and Codec Mode Command at to the neighbour mode every 22 speech frames (440 ms) by following a scanning pattern (1->2->3->4->4->3->2->1). CMI should initially be increased. CMC should initially be decreased. The CMIC/MC shall be repeated until the minimum required number of frame samples has been sent to the MS.
c) The SS compares the in band signalling code words/frames it sends to the MS with the in band signalling code words/frames which are looped back from the receiver after demodulation and decoding, and checks for in band signalling (CMI/CMC) frame errors.
d) The SS determines the frame error events by examining sequences of at least the minimum number of samples of consecutive frames. All frames should be considered when computing the frame error rate: those corresponding to a downlink CMI/CMC transitions and those without downlink CMI/CMC transitions.
e) If the MS does not support AMR half rate speech, then steps a) to d) are repeated except that in step a) both the wanted and interfering signal are TUhigh hopping and the SS commands the MS into hopping mode. A hopping pattern covering at least 10 frequencies in a range not exceeding 5 MHz is used. The hopping pattern is centred around an ARFCN in the Mid ARFCN range.
NOTE: The delays associated with Loop I are not specified, and will be MS implementation dependant. Loop I should be considered as having two separate parts (DL CMC -> UL CMI and DL CMI -> UL CMR). The delays associated with the two parts may differ. The SS should ensure that the correctly looped in band bits are compared. The delays associated with Loop I will remain constant for the duration of the test, thus every UL frame received by the SS will have only one possible expected value.
Maximum/Minimum Duration of Test
MS supporting AMR half rate speech:
Maximum/minimum: 14 minutes (GSM850, GSM900).
Maximum/minimum: 6 minutes (DCS1800, PCS1900).
MS not supporting AMR half rate speech:
Maximum/minimum: 72 minutes (GSM850, GSM900).
Maximum/minimum: 84 minutes (DCS1800, PCS1900).
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.4.17.5 Test requirements
|
The frame error rate measured in this test shall not exceed the test limit error rate values given in table 14.4.17-1 or 14.4.17-2.
Co-channel rejection tests with a frequency condition noted as "@ndB" are performed with the interfering frequency transmitted with an additional n dB attenuation, see 3GPP TS 45.005.
Table 14.4.17-1: Limits for GSM 400, GSM 700, T-GSM 810, GSM 850 and GSM 900 co-channel rejection
Channel
Propagation
condition
Test limit
error rate %
Minimum No.
of samples
TCH/AFS-INB (FER)
TUlow/No FH@-3 dB
4.319
7988
TCH/AFS-INB (FER)
TUhigh/FH@-3 dB
0.197
174737
Table 14.4.17-2: Limits for DCS 1800 and PCS 1 900 co-channel rejection
Channel
Propagation
condition
Test limit
error rate %
Minimum No.
of samples
TCH/AFS-INB (FER)
Tulow/No FH@-3dB
4.319
7988
TCH/AFS-INB (FER)
TUhigh/FH@-3 dB
0.148
232982
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.4.18 Co-channel rejection - TCH/AHS-INB
| |
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.4.18.1 Definition
|
The co-channel 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 an unwanted modulated signal, both signals being at the nominal frequency of the receiver.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.4.18.2 Conformance requirement
|
1. At reference co channel interference, the TCH/AHS-INB shall meet the reference interference performance of table 2 in 3GPP TS 45.005 subclause 6.3.
The delays associated with Loop I remain constant for all of the following circumstances:
- For a given MS implementation.
- For the duration of the MS being powered on.
3GPP TS 44.014 subclause 5.1.7a.1.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.4.18.3 Test purpose
|
1. To verify that the MS does not exceed conformance requirement 1, under propagation conditions TUhigh without frequency hopping, with an allowance for the statistical significance of the test.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.4.18.4 Method of test
| |
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.4.18.4.1 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 the following set of codecs modes:
Codec Mode
TCH/AHS in kbit/s
CODEC_MODE_4
7,95
CODEC_MODE_3
6,7
CODEC_MODE_2
5,9
CODEC_MODE_1
4.75
The Initial Codec Mode shall be set to the lowest codec mode (CODEC_MODE_1).
The following decision threshold and hysteresis values in terms of normalized carrier to interference ratio (C/Inorm), shall apply for Codec Mode Command / Request (MC, MR):
MC'/MR'
THR_MC_Dn(MC')/
THR_MR_Dn(MR')
THR_MC_Up(MC')/
THR_MR_Up(MR')
CODEC_MODE_4
16,0 dB
+
CODEC_MODE_3
12,0 dB
18,0 dB
CODEC_MODE_2
8,0 dB
14,0 dB
CODEC_MODE_1
10,0 dB
The SS transmits Standard Test Signal C1 on the traffic channel using the Initial Codec Mode (ICM).
The SS continuously sends a CMC corresponding to the highest codec mode (CODEC_MODE_4).
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.4.18.4.2 Procedure
|
a) In addition to the wanted signal, the SS produces 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. Its amplitude is 9 dB below that of the wanted signal.
b) The fading characteristic of the wanted and the interfering signal is set to TUhigh. The SS commands the MS into non hopping mode.
c) The SS commands the MS to loop back band signalling code words by closing a Loop I.
d) The SS shall change the Codec Mode Indication and Codec Mode Command at to the neighbour mode every 22 speech frames (440 ms) by following a scanning pattern (1->2->3->4->4->3->2->1). CMI should initially be increased. CMC should initially be decreased. The CMICMC pattern shall be repeated until the minimum required number of frame samples has been sent to the MS.
e) The SS compares the in band signalling code words/frames it sends to the MS with the in band signalling code words/frames which are looped back from the receiver after demodulation and decoding, and checks for in band signalling (CMI/CMC) frame errors.
f) The SS determines the frame error events by examining sequences of at least the minimum number of samples of consecutive frames. All frames should be considered when computing the frame error rate: those corresponding to a downlink CMI/CMC transitions and those without downlink CMI/CMC transitions.
NOTE: The delays associated with Loop I are not specified, and will be MS implementation dependant. Loop I should be considered as having two separate parts (DL CMC -> UL CMI and DL CMI -> UL CMR). The delays associated with the two parts may differ. The SS should ensure that the correctly looped in band bits are compared. The delays associated with Loop I will remain constant for the duration of the test, thus every UL frame received by the SS will have only one possible expected value.
Maximum/Minimum Duration of Test
Maximum/minimum: 26 minutes (GSM850, GSM900), 25 minutes (DCS1800, PCS1900).
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.4.18.5 Test requirements
|
The frame error rate measured in this test shall not exceed the test limit error rate values given in table 14.4.18-1 or table 14.4.18-2.
Table 14.4.18-1: Limits for GSM 400, GSM 700, T-GSM 810, GSM 850 and GSM 900 co-channel rejection
Channel
Propagation
condition
Test limit
error rate %
Minimum No.
of samples
TCH/AHS-INB (FER)
TUhigh/No FH
0.784
76000
Table 14.4.18-2: Limits for DCS 1800 and PCS 1 900 co-channel rejection
Channel
Propagation
condition
Test limit
error rate %
Minimum No.
of samples
TCH/AHS-INB (FER)
TUhigh/No FH
0.795
75000
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.4.19 Co-channel rejection - O-TCH/AHS
| |
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.4.19.1 Definition
|
-
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.4.19.2 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
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 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.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.4.19.3 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/AHS12.2, O-TCH/AHS7.95, O-TCH/AHS5.9 and O-TCH/AHS4.75.
|
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