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51.010-1
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14.2.2.5 Test requirements
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The error rates measured for different channels and under the different propagation conditions, shall not exceed the test limit error rate values given in table 14-7 or 14-8.
Table 14-7: Limits for GSM 400, GSM 700, T-GSM 810, GSM 850 and GSM 900 sensitivity
Channels
Propagation conditions TUhigh
Propagation conditions RA
Propagation conditions HT
Test limit error rate %
Minimum No. of samples
Test limit error rate %
Minimum No. of samples
Test limit error rate %
Minimum No. of samples
TCH/HS (FER)
4,598
13050
TCH/HS Class Ib (BFI=0)
0,404
148500
TCH/HS Class II (BFI=0)
7,725
25500
7,600
20000
8,500
20000
TCH/HS (UFR)
6,250
9600
TCH/HS Class Ib ((BFI or UFI)=0)
0,269
227000
Table 14-8: Limits for DCS 1800 and PCS 1 900 sensitivity
Channels
Propagation conditions TUhigh
Propagation conditions RA
Propagation conditions HT
Test limit error rate %
Minimum No. of samples
Test limit error rate %
Minimum No. of samples
Test limit error rate %
Minimum No. of samples
TCH/HS (FER)
4,706
12750
TCH/HS Class Ib (BFI=0)
0,426
141000
TCH/HS Class II (BFI=0)
7,725
25500
7,600
20000
8,735
20000
TCH/HS (UFR)
6,383
9400
TCH/HS Class Ib ((BFI or UFI)=0)
0,291
206000
14.2.2a Reference sensitivity - TCH/HS in TIGHTER configuration
14.2.2a.1 Definition
The reference sensitivity level is the signal level at the MS receiver input at which a certain BER and FER and UFR for speech frames must be achieved.
14.2.2a.2 Conformance requirement
3GPP TS 45.005 subclause 6.2.5
The reference performance for Tightened Link Level Performance (TIGHTER) specified in table 1w, shall be
For speech channels (TCH/FS, TCH/HS, TCH/EFS, TCH/AFSx, TCH/AHSx, TCH/WFSx ) FER: 1 %
In addition for speech channels the residual class Ib BER and residual class II BER performance shall not exceed the specified values in table 1w at the corresponding signal level in dBm. The reference sensitivity level in section 6.2.1 shall be applied for TIGHTER MS.
14.2.2a.3 Test purpose
NOTE: This test is performed under STATIC propagation conditions to allow implicit testing of the ability of the MS to hop over the full band. The tests under dynamic propagation conditions are better suited to test the reference sensitivity conformance but cannot test hopping over the full band due to limited bandwidth of available fading simulators.
1. For TCH HS/FER, MS shall meet the reference sensitivity performance mentioned in 3GPP TS 45.005 sub clause 6.2.5, for reference sensitivity level mentioned in Table 1w according to propagation conditions.
2. At reference sensitivity level, the TCH/HS class Ib RBER shall meet the performance mentioned in table 1w in 3GPP TS 45.005.
3. At reference sensitivity level, the TCH/HS RBER2 shall meet the performance mentioned in table 1w in 3GPP TS 45.005.
14.2.2a.4 Method of test
NOTE 1: The BA list sent on the BCCH and SACCH will indicate at least six surrounding cells with at least one near to each band edge. It is not necessary to generate any of these BCCHs but, if provided the signal strengths of BCCHs shall be in the range 15 dBVemf( ) to 35 dBVemf( ).
NOTE 2: The ARFCN of any BCCH shall not be co-channel or on adjacent channels to the wanted traffic channel.
14.2. 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 for GSM 400, GSM 700, T-GSM 810, GSM 850, DCS 1800 and PCS 1 900 and ARFCN 70 for GSM 900, power control level set to maximum power.
The SS transmits Standard Test Signal C1 on the traffic channel.
The SS commands the MS to create traffic channel loop back signalling erased frames.
Specific PICS Statements:
-
14.2.2a.4.2 Procedure
a) 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 detected with BFI=1 are signalled as erased on the uplink.
b) The fading function is set to TUhigh.
c) The SS sets the amplitude of the wanted signal to reference sensitivity as defined in Table 1w.
d) The SS compares the data of the signal that it sends to the MS with the signal which is looped back from the receiver after demodulation and decoding, and checks the frame erasure indication.
e) The SS determines the number of residual bit error events for the bits of class II, by examining sequences of 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 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.
g) The SS also determines the frame erasure events by examining sequences of at least the minimum number of samples of consecutive frames and assuming a frame is received successfully, if it is not signalled as erased.
h) Steps d) and e) are repeated, with the SS fading function set in turn to RA and HT.
14.2.2a.5 Test requirements
The error rates measured for different channels and under the different propagation conditions shall not exceed the test limit error rate values given in table 14.2.2a.5-1 or 14.2.2a.5-2.
Table 14.2.2a.5-1: Limits for GSM 850 and GSM 900 sensitivity
Channels
Propagation conditions TUhigh
Propagation conditions RA
Propagation conditions HT
Test limit error rate %
Minimum No. of samples
Test limit error rate %
Minimum No. of samples
Test limit error rate %
Minimum No. of samples
TCH/HS FER
1
13050
class Ib(RBER)
0,24
148500
class II(RBER)
5,09
25500
5,83
20000
5,12
20000
Table 14.2.2a.5-2: Limits for DCS 1800 and PCS 1900 sensitivity
Channels
Propagation conditions TUhigh
Propagation conditions RA
Propagation conditions HT
Test limit error rate %
Minimum No. of samples
Test limit error rate %
Minimum No. of samples
Test limit error rate %
Minimum No. of samples
TCH/HS FER
1
12750
class Ib(RBER)
0,21
141000
class II(RBER)
5,95
25500
4,87
20000
5,26
20000
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51.010-1
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14.2.3 Reference sensitivity - FACCH/F
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14.2.3.1 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.
14.2.3.2 Conformance requirement.
At reference sensitivity level, the FACCH/F FER shall meet the reference sensitivity performance of table 1 in 3GPP TS 05.05 subclause 6.2.
14.2.3.3 Test purpose.
To verify that the MS does not exceed the conformance requirement under TUhigh propagation condition with an allowance for the statistical significance of the test.
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14.2.3.4 Method of test
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14.2.3.4.1 Initial conditions
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A call is set up according to the generic call set up procedure on a TCH/F with an ARFCN in the Low ARFCN range, power control level set to maximum power.
The SS transmits Standard Test Signal C1 on the traffic channel.
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51.010-1
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14.2.3.4.2 Procedure
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a) The fading function is set to TUhigh.
b) The SS sets the amplitude of the wanted signal to reference sensitivity level ( ).
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 the Layer 2 frame with an RR frame and the SS will repeat the Layer 2 frame. Each repeated 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.
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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51.010-1
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14.2.3.5 Test Requirements
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The error rates measured shall not exceed the test limit error rate values given in table 14-9.
Table 14-9: Limits for FACCH/F sensitivity
GSM 400, GSM 700, T-GSM 810, GSM 850 and GSM 900
DCS 1 800 and PCS 1 900
Channels
Type of
measurements
Propagation
Test limit error rate %
Minimum No of samples
Test limit error rate %
Minimum No of samples
FACCH/F
FER
TUhigh
8,961
6696
4,368
13736
14.2.3a Reference sensitivity - FACCH/F in TIGHTER configuration
14.2.3a.1 Definition
The reference sensitivity for control channels is the signal level at the MS receiver input at which a certain FER must be achieved.
14.2.3a.2 Conformance requirement.
3GPP TS 45.005 subclause 6.2.5
The reference performance for Tightened Link Level Performance (TIGHTER) specified in table 1w, shall be
• For signalling channels (SCH, FACCH/F, FACCH/H, SDCCH) FER: 5 %
14.2.3a.3 Test purpose.
For FACCH/F, MS shall meet the reference sensitivity performance mentioned in 3GPP TS 45.005 sub clause 6.2.5, for reference sensitivity level mentioned in Table 1w according to propagation conditions.
14.2.3a.4 Method of test
14.2.3a.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 Low ARFCN range, power control level set to maximum power.
The SS transmits Standard Test Signal C1 on the traffic channel.
Specific PICS Statements:
-
14.2.3a.4.2 Procedure
a) The fading function is set to TUhigh.
b) The SS sets the amplitude of the wanted signal to reference sensitivity, as defined in Table 1w.
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 the Layer 2 frame with an RR frame and the SS will repeat the Layer 2 frame. Each repeated 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.
NOTE: These frames will not be consecutive but it is expected that the statistical significance of the tests will not be unduly degraded.
14.2.3a.5 Test Requirements
The error rates measured shall not exceed the test limit error rate values given in table 14.2.3a.5-1.
Table 14.2.3a.5-1: Limits for FACCH/F sensitivity
GSM 400, GSM 700, T-GSM 810, GSM 850 and GSM 900
DCS 1 800 and PCS 1 900
Channels
Type of
measurements
Propagation
Test limit error rate %
Minimum No of samples
Test limit error rate %
Minimum No of samples
FACCH/F
FER
TUhigh
5
6696
5
13736
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14.2.4 Reference sensitivity - FACCH/H
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14.2.4.1 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.
14.2.4.2 Conformance requirement.
At reference sensitivity level, the FACCH/H FER shall meet the reference sensitivity performance of table 1 in 3GPP TS 05.05 subclause 6.2.
14.2.4.3 Test purpose.
To verify that the MS does not exceed the conformance requirement under TUhigh propagation condition with an allowance for the statistical significance of the test.
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14.2.4.4 Method of test
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51.010-1
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14.2.4.4.1 Initial conditions
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A call is set up according to the generic call set up procedure on TCH/HS, TCH/H4.8, TCH/H2.4 or any TCH/AHS, whichever supported by the MS, 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.
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14.2.4.4.2 Procedure
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a) The fading function is set to TUhigh.
b) The SS sets the amplitude of the wanted signal to reference sensitivity level ( ).
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 the Layer 2 frame with an RR frame and the SS will repeat the Layer 2 frame. Each repeated 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/H 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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51.010-1
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14.2.4.5 Test requirements
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The error rates measured shall not exceed the test limit error rate values given in table 14-10.
Table 14-10: Limits for FACCH/H sensitivity
GSM 400, GSM 700, T-GSM 810, GSM 850 and GSM 900
DCS 1 800 and PCS 1 900
Channels
Type of measurements
Propagation
Test limit error rate %
Minimum No of samples
Test limit error rate %
Minimum No of samples
FACCH/H
FER
TUhigh
7,728
8,064
14.2.4a Reference sensitivity - FACCH/H in TIGHTER configuration
14.2.4a.1 Definition
The reference sensitivity for control channels is the signal level at the MS receiver input at which a certain FER must be achieved.
14.2.4a.2 Conformance requirement.
3GPP TS 45.005 subclause 6.2.5
The reference performance for Tightened Link Level Performance (TIGHTER) specified in table 1w, shall be
• For signalling channels (SCH, FACCH/F, FACCH/H, SDCCH) FER: 5 %
14.2.4a.3 Test purpose.
For FACCH/H, MS shall meet the reference sensitivity performance mentioned in 3GPP TS 45.005 sub clause 6.2.5, for reference sensitivity level mentioned in Table 1w according to propagation conditions.
14.2.4a.4 Method of test
14.2.4a.4.1 Initial conditions
A call is set up according to the generic call set up procedure on 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.
Specific PICS Statements:
-
14.2.4a.4.2 Procedure
a) The fading function is set to TUhigh.
b) The SS sets the amplitude of the wanted signal to reference sensitivity level, as defined in Table 1w.
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 the Layer 2 frame with an RR frame and the SS will repeat the Layer 2 frame. Each repeated 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/H frames.
NOTE: These frames will not be consecutive but it is expected that the statistical significance of the tests will not be unduly degraded.
14.2.4a.5 Test requirements
The error rates measured shall not exceed the test limit error rate values given in table 14.2.4a.5-1.
Table 14.2.4a.5-1: Limits for FACCH/H sensitivity
GSM 400, GSM 700, T-GSM 810, GSM 850 and GSM 900
DCS 1 800 and PCS 1 900
Channels
Type of measurements
Propagation
Test limit error rate %
Minimum No of samples
Test limit error rate %
Minimum No of samples
FACCH/H
FER
TUhigh
5
5
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51.010-1
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14.2.5 Reference sensitivity - full rate data channels
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51.010-1
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14.2.5.1 Definition
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The reference sensitivity for data channels is the signal level at the MS receiver input at which a certain BER must be achieved.
14.2.5.2 Conformance Requirement.
1. At reference sensitivity level, the TCH/F9,6, TCH/F4,8 and TCH/F2,4 BER shall meet the reference sensitivity performance of table 1 in 3GPP TS 05.05 subclause 6.2.
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51.010-1
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14.2.5.3 Test purpose
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1. To verify that the MS does not exceed conformance requirement 1 under HT propagation condition with an allowance for the statistical significance of the test.
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51.010-1
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14.2.5.4 Method of test
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51.010-1
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14.2.5.4.1 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. One of the supported TCH/(F9,6, F4,8, or F2,4) shall be used. The power control level is set to maximum power.
The SS transmits Standard Test Signal C1 on the traffic channel.
The SS commands the MS to create the traffic channel loop back signalling erased frames (subclause 36.2.1.1.1).
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51.010-1
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14.2.5.4.2 Procedure
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a) The fading function is set to HT.
b) The SS sets the amplitude of the wanted signal level to reference sensitivity level ( ).
c) The SS compares transmitted data with received data for at least the minimum number of samples of consecutive bits and records every error bit as an error event.
d) The SS sets the wanted signal level to 28 dBVemf.
e) The SS commands the MS to open the TCH loop.
f) The SS commands the MS to another of the supported data channels.
g) Steps b) to f) are repeated for all supported full rate data channels.
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51.010-1
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14.2.5.5 Test requirements
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The Max-events measured for different channels shall not exceed the values given in table 14-11.
Table 14-11: Limits for full rate data channel sensitivity
GSM 400, GSM 700, T-GSM 810, GSM 850 and GSM 900
DCS 1 800 and PCS 1 900
Channels
Type of measurements
Propagation
Test limit error rate %
Minimum No of samples
Test limit error rate %
Minimum No of samples
TCH/F9,6
BER
HT
0,778
180000
0,784
76500
TCH/F4,8
BER
HT
0,011
5350000
0,011
5350000
TCH/F2,4
BER
HT
0,001
11900000
0,001
11900000
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51.010-1
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14.2.6 Reference sensitivity - half rate data channels
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51.010-1
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14.2.6.1 Definition
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The reference sensitivity for data channels is the signal level at the MS receiver input at which a certain BER must be achieved.
14.2.6.2 Conformance Requirement.
1. At reference sensitivity level, the TCH/H4,8 and TCH/H2,4 BER shall meet the reference sensitivity performance of table 1 in 3GPP TS 05.05 subclause 6.2.
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51.010-1
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14.2.6.3 Test purpose
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1. To verify that the MS does not exceed conformance requirement 1 under HT propagation condition with an allowance for the statistical significance of the test.
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51.010-1
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14.2.6.4 Method of test
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51.010-1
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14.2.6.4.1 Initial conditions
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A call is set up according to the generic call set up procedure on a TCH with an ARFCN in the Mid ARFCN range. One of the supported TCH/(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.
The SS commands the MS to create the traffic channel loop back signalling erased frames (subclause 36.2.1.1.1).
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51.010-1
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14.2.6.4.2 Procedure
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a) The fading function is set to HT.
b) The SS sets the amplitude of the wanted signal level to reference sensitivity level ( ).
c) The SS compares transmitted data with received data for at least the minimum number of samples of consecutive bits and records every error bit as an error event.
d) The SS sets the wanted signal level to 28 dBVemf.
e) The SS commands the MS to open the TCH loop.
f) The SS commands the MS to another of the supported data channels.
g) Steps b) to f) are repeated for all supported data channels.
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51.010-1
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14.2.6.5 Test requirements
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The Max-events measured for different channels shall not exceed the values given in table 14-12.
Table 14-12: Limits for half rate data channel sensitivity
GSM 400, GSM 700, T-GSM 810, GSM 850 and GSM 900
DCS 1 800 and PCS 1 900
Channels
Type of measurements
Propag-ation
Test limit error rate %
Minimum No of samples
Test limit error rate %
Minimum No of samples
TCH/H4,8
BER
HT
0,778
180000
-
-
TCH/H2,4
BER
HT
0,011
5350000
-
-
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51.010-1
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14.2.7 Reference sensitivity - TCH/EFS
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51.010-1
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14.2.7.1 Definition
|
The reference sensitivity is the signal level at the MS receiver input at which a certain BER and FER must be achieved.
For E-GSM 900 MS this test is only performed in the P-GSM band.
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51.010-1
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14.2.7.2 Conformance requirement
|
1. At reference sensitivity level, the TCH/EFS FER shall meet the reference sensitivity performance of table 1 in 3GPP TS 05.05 subclause 6.2.
2 At reference sensitivity level, the TCH/EFS class I RBER shall meet the reference sensitivity performance of table 1 in 3GPP TS 05.05 subclause 6.2.
3 At reference sensitivity level, the TCH/EFS class II RBER shall meet the reference sensitivity, performance of table 1 in 3GPP TS 05.05 subclause 6.2.
4. At reference sensitivity level, the TCH/EFS class II RBER shall meet the reference sensitivity, performance of table 1 in GSM under extreme conditions; 3GPP TS 05.05, subclause 6.2 and annex D subclauses D.2.1 and D.2.2.
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51.010-1
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14.2.7.3 Test purpose
|
NOTE: This test is performed under STATIC propagation conditions to allow implicit testing of the ability of the MS to hop over the full band. The tests under dynamic propagation conditions are better suited to test the reference sensitivity conformance but cannot test hopping over the full band due to limited bandwidth of available fading simulators.
1. To verify that the MS does not exceed conformance requirement 1 under STATIC and TUhigh propagation conditions with an allowance for the statistical significance of the test.
2. To verify that the MS does not exceed conformance requirement 2 under STATIC and TUhigh propagation conditions with an allowance for the statistical significance of the test.
3. To verify that the MS does not exceed conformance requirement 3 under STATIC, TUhigh, RA and HT propagation conditions with an allowance for the statistical significance of the test.
4. To verify that the MS does not exceed conformance requirement 4 under STATIC and TUhigh propagation conditions with an allowance for the statistical significance of the test.
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683b5b8a98f7b1390ddd5516ea9247a2
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51.010-1
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14.2.7.4 Method of test
|
NOTE 1: The BA list sent on the BCCH and SACCH will indicate at least six surrounding cells with at least one near to each band edge. It is not necessary to generate any of these BCCHs but, if provided the signal strengths of BCCHs shall be in the range 15 dBmVemf( ) to 35 dBmVemf( ).
NOTE 2: The ARFCN of any BCCH shall not be co-channel or on adjacent channels to the wanted traffic channel.
NOTE 3: When frequency hopping is used, the traffic channel may fall on any of the ARFCNs defined in clause 6.
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683b5b8a98f7b1390ddd5516ea9247a2
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51.010-1
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14.2.7.4.1 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 for GSM 400, GSM 700, T-GSM 810, GSM 850, DCS 1800 and PCS 1 900 and ARFCN 70 for GSM 900, power control level set to maximum power.
NOTE: For GSM 900 ARFCN 70 is tested since this is the 73rd harmonic of the 13 MHz clock normally used internally in a MS.
The SS transmits Standard Test Signal C1 on the traffic channel.
The SS commands the MS to create traffic channel loop back signalling erased frames.
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683b5b8a98f7b1390ddd5516ea9247a2
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51.010-1
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14.2.7.4.2 Procedure
|
a) The fading function is set to TUhigh.
b) the SS sets the amplitude of the wanted signal to reference sensitivity level ( ).
c) The SS compares the data of the signal that it sends to the MS with the signal which is looped back from the receiver after demodulation and decoding, and checks the frame erasure indication.
d) The SS determines the number of residual bit error events for the bits of class II, by examining sequences of at least the minimum number of samples of consecutive bits of class II. Bits are taken only from those frames not signalled as erased.
e) The SS determines the number of residual bit error events for the bits of the class Ib, by examining sequences of at least the minimum number of samples of consecutive bits of class Ib. Bits are only taken from those frames not signalled as erased.
f) The SS also determines the frame erasure events by examining sequences of at least the minimum number of samples of consecutive frames and assuming a frame is received successfully, if it is not signalled as erased.
g) Steps a) to d) are repeated under extreme test conditions.
h) Steps a) to g) are repeated for TCH/EFS with ARFCNs in the Low ARFCN range for GSM 400, GSM 700, T-GSM 810, GSM 850, DCS 1800 and PCS 1 900 and ARFCN 5 for GSM 900 and the High ARFCN range.
NOTE: For GSM 900 ARFCN 5 is tested since this is the 72nd harmonic of the 13 MHz clock normally used internally in a MS.
i) Steps b) to d) are repeated with the SS fading function set in turn to RA and HT.
j) Steps b) to g) are repeated, with the SS fading function set to static and the MS is commanded by the SS into hopping mode using the hopping sequence defined in clause 6.
The amplitude of the wanted signal is set according to step b). All the other time slots, except the active ones, are set to 20 dB above reference sensitivity level( ). This implicitly tests adjacent time slot rejection.
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14.2.7.5 Test requirements
|
The error rates measured for different channels and under the different propagation conditions, under any combination of normal and extreme test voltages and ambient temperatures, shall not exceed the test limit error rate values given in tables 14-4 or 14-13a, 14-13b.
Table 14-13a: Limits for GSM 400, GSM 700, T-GSM 810, GSM 850 and GSM 900 sensitivity
Channels
Propagation conditions TUhigh
Propagation conditions RA
Propagation conditions HT
Static conditions
Test limit error rate %
Minimum No. of samples
Test limit error rate %
Minimum No. of samples
Test limit error rate %
Minimum No. of samples
Test limit error rate %
Minimum No. of samples
TCH/EFS
FER
8,867
8900
0,122
164000
class Ib(RBER)
0,224
1000000
0,110
20000000
class II (RBER)
7,500
120000
7,500
24000
9,350
60000
2,439
8200
Table 14-13b: Limits for DCS 1 800 and PCS 1 900 sensitivity
Channels
Propagation conditions TUhigh
Propagation conditions RA
Propagation conditions HT
Static conditions
Test limit error rate %
Minimum No. of samples
Test limit error rate %
Minimum No. of samples
Test limit error rate %
Minimum No. of samples
Test limit error rate %
Minimum No. of samples
TCH/EFS
FER
4,475
13400
0,122
164000
class Ib(RBER)
0,130
1500000
0,110
20000000
class II(RBER)
8,333
60000
7,500
24000
9,498
30000
2,439
8200
14.2.7a Reference sensitivity - TCH/EFS in TIGHTER configuration
14.2.7a.1 Definition
The reference sensitivity is the signal level at the MS receiver input at which a certain BER and FER must be achieved.
14.2.7a.2 Conformance requirement
3GPP TS 45.005 subclause 6.2.5
The reference performance for Tightened Link Level Performance (TIGHTER) specified in table 1w, shall be
For speech channels (TCH/FS, TCH/HS, TCH/EFS, TCH/AFSx, TCH/AHSx, TCH/WFSx ) FER: 1 %
In addition for speech channels the residual class Ib BER and residual class II BER performance shall not exceed the specified values in table 1w at the corresponding signal level in dBm. The reference sensitivity level in section 6.2.1 shall be applied for TIGHTER MS.
14.2.7a.3 Test purpose
NOTE: This test is performed under STATIC propagation conditions to allow implicit testing of the ability of the MS to hop over the full band. The tests under dynamic propagation conditions are better suited to test the reference sensitivity conformance but cannot test hopping over the full band due to limited bandwidth of available fading simulators.
1. For TCH EFS/FER, MS shall meet the reference sensitivity performance mentioned in 3GPP TS 45.005 sub clause 6.2.5, for reference sensitivity level mentioned in Table 1w according to propagation conditions.
2. At reference sensitivity level, the TCH/EFS class Ib RBER shall meet the performance mentioned in table 1w in 3GPP TS 45.005.
3. At reference sensitivity level, the TCH/EFS RBER2 shall meet the performance mentioned in table 1w in 3GPP TS 45.005.
14.2.7a.4 Method of test
NOTE 1: The BA list sent on the BCCH and SACCH will indicate at least six surrounding cells with at least one near to each band edge. It is not necessary to generate any of these BCCHs but, if provided the signal strengths of BCCHs shall be in the range 15 dBmVemf( ) to 35 dBmVemf( ).
NOTE 2: The ARFCN of any BCCH shall not be co-channel or on adjacent channels to the wanted traffic channel.
14.2.7a.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 for GSM 400, GSM 700, T-GSM 810, GSM 850, DCS 1800 and PCS 1 900 and ARFCN 70 for GSM 900, power control level set to maximum power.
NOTE: For GSM 900 ARFCN 70 is tested since this is the 73rd harmonic of the 13 MHz clock normally used internally in a MS.
The SS transmits Standard Test Signal C1 on the traffic channel.
The SS commands the MS to create traffic channel loop back signalling erased frames.
Specific PICS Statements:
-
14.2.7a.4.2 Procedure
a) The fading function is set to TUhigh.
b) The SS sets the amplitude of the wanted signal to reference sensitivity as defined in Table 1w.
c) The SS compares the data of the signal that it sends to the MS with the signal which is looped back from the receiver after demodulation and decoding, and checks the frame erasure indication.
d) The SS determines the number of residual bit error events for the bits of class II, by examining sequences of at least the minimum number of samples of consecutive bits of class II. Bits are taken only from those frames not signalled as erased.
e) The SS determines the number of residual bit error events for the bits of the class Ib, by examining sequences of at least the minimum number of samples of consecutive bits of class Ib. Bits are only taken from those frames not signalled as erased.
f) The SS also determines the frame erasure events by examining sequences of at least the minimum number of samples of consecutive frames and assuming a frame is received successfully, if it is not signalled as erased.
g) Steps a) to d) are repeated under extreme test conditions.
h) Steps a) to g) are repeated for TCH/EFS with ARFCNs in the Low ARFCN range for GSM 400, GSM 700, T-GSM 810, GSM 850, DCS 1800 and PCS 1 900 and ARFCN 5 for GSM 900 and the High ARFCN range.
NOTE: For GSM 900 ARFCN 5 is tested since this is the 72nd harmonic of the 13 MHz clock normally used internally in a MS.
i) Steps b) to d) are repeated with the SS fading function set in turn to RA and HT.
j) Steps b) to g) are repeated, with the SS fading function set to static and the MS is commanded by the SS into hopping mode using the hopping sequence defined in clause 6.
The amplitude of the wanted signal is set according to step b). All the other time slots, except the active ones, are set to 20 dB above reference sensitivity level( ). This implicitly tests adjacent time slot rejection.
14.2.7a.5 Test requirements
The error rates measured for different channels and under the different propagation conditions, under any combination of normal and extreme test voltages and ambient temperatures, shall not exceed the test limit error rate values given in tables 14.2.7a.5-1, 14.2.7a.5-2.
Table 14.2.7a.5-1: Limits for GSM 850 and GSM 900 sensitivity
Channels
Propagation conditions TUhigh
Propagation conditions RA
Propagation conditions HT
Static conditions
Test limit error rate %
Minimum No. of samples
Test limit error rate %
Minimum No. of samples
Test limit error rate %
Minimum No. of samples
Test limit error rate %
Minimum No. of samples
TCH/EFS
FER
1
8900
1
164000
class Ib(RBER)
0,03
1000000
0,03
20000000
class II (RBER)
3,29
120000
6,19
24000
5,34
60000
6,22
8200
Table 14.2.7a.5-2: Limits for DCS 1800 and PCS 1900 sensitivity
Channels
Propagation conditions TUhigh
Propagation conditions RA
Propagation conditions HT
Static conditions
Test limit error rate %
Minimum No. of samples
Test limit error rate %
Minimum No. of samples
Test limit error rate %
Minimum No. of samples
Test limit error rate %
Minimum No. of samples
TCH/EFS
FER
1
13400
1
164000
class Ib(RBER)
0,04
1500000
0,03
20000000
class II(RBER)
4,92
60000
6,07
24000
6,85
30000
6,22
8200
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14.2.8 Reference sensitivity - full rate data channels in multislot configuration
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14.2.8.1 Definition
|
The reference sensitivity for data channels is the signal level at the MS receiver input at which a certain BER must be achieved.
14.2.8.2 Conformance Requirement.
1. At reference sensitivity level, the TCH/F9,6, TCH/F4,8 and TCH/F2,4 BER shall meet the reference sensitivity performance of table 1 in 3GPP TS 05.05 subclause 6.2.
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14.2.8.3 Test purpose
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1. To verify that the MS does not exceed conformance requirement 1 in all multislot classes under HT propagation condition with an allowance for the statistical significance of the test.
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14.2.8.4 Method of test
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14.2.8.4.1 Initial conditions
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A call is set up according to the generic call set up procedure for multislot HSCSD on a TCH with an ARFCN in the Mid ARFCN range. One of the supported TCH/(F9,6, F4,8, or F2,4) shall be used.
The SS sets the MS to operate in a worst case configuration where the overlapping of the transmitting and receiving timeslots are maximized. If it needs the use of timing advance, it is set to 63. If overlapping is not possible, transmitting and receiving timeslots should be as close as possible.
The power control level is set to maximum power.
The SS transmits Standard Test Signal C1 on all the channels.
The SS commands the MS to create the loop back of the closest channel to the transmitting timeslot.
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14.2.8.4.2 Procedure
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a) The fading function is set to HT.
b) The SS commands the MS to close the TCH loop.
c) The SS sets the amplitude of the wanted signal level to reference sensitivity level ( ) in all subchannels.
d) The SS compares transmitted data with received data in all channels for at least the minimum number of samples of consecutive bits and records every error bit as an error event.
e) The SS sets the wanted signal level to 28 dBmVemf.
f) The SS commands the MS to open the TCH loop.
g) The SS commands the MS to another of the supported data channels.
h) Steps b) to g) are repeated for all supported full rate data channels.
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14.2.8.5 Test requirements
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The Max-events measured for different channels shall not exceed the values given in table 14-15.
Table 14-15: Limits for full rate data channel sensitivity
GSM 400, GSM 700, T-GSM 810, GSM 850 and GSM 900
DCS 1 800 and PCS 1 900
Channels
Type of measurements
Propagation
Test limit error rate %
Minimum No of samples
Test limit error rate %
Minimum No of samples
TCH/F9,6
BER
HT
0,778
180000
0,784
76500
TCH/F4,8
BER
HT
0,011
5350000
0,011
5350000
TCH/F2,4
BER
HT
0,001
11900000
0,001
11900000
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14.2.9 Reference sensitivity - TCH/FS for MS supporting the R-GSM or ER-GSM band
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14.2.9.1 Definition
|
The reference sensitivity is the signal level at the MS receiver input at which a certain BER and FER must be achieved.
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14.2.9.2 Conformance requirement
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1. At reference sensitivity level, the TCH/FS FER shall meet the reference sensitivity performance of table 1 in 3GPP TS 05.05 subclause 6.2.
2 At reference sensitivity level, the TCH/FS class I RBER shall meet the reference sensitivity performance of table 1 in 3GPP TS 05.05 subclause 6.2.
3 At reference sensitivity level, the TCH/FS class II RBER shall meet the reference sensitivity, performance of table 1 in 3GPP TS 05.05 subclause 6.2.
4. At reference sensitivity level, the TCH/FS class II RBER shall meet the reference sensitivity, performance of table 1 in GSM under extreme conditions; 3GPP TS 05.05, subclause 6.2 and annex D subclauses D.2.1 and D.2.2.
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14.2.9.3 Test purpose
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NOTE: This test is performed under STATIC propagation conditions to allow implicit testing of the ability of the MS to hop over the full band. The tests under dynamic propagation conditions are better suited to test the reference sensitivity conformance but cannot test hopping over the full band due to limited bandwidth of available fading simulators.
1. To verify that the MS does not exceed conformance requirement 1 under STATIC and TUhigh propagation conditions with an allowance for the statistical significance of the test.
2. To verify that the MS does not exceed conformance requirement 2 under STATIC and TUhigh propagation conditions with an allowance for the statistical significance of the test.
3. To verify that the MS does not exceed conformance requirement 3 under STATIC, TUhigh, RA and HT propagation conditions with an allowance for the statistical significance of the test.
4. To verify that the MS does not exceed conformance requirement 4 under STATIC and TUhigh propagation conditions with an allowance for the statistical significance of the test.
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14.2.9.4 Method of test
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NOTE 1: The BA list sent on the BCCH and SACCH will indicate at least six surrounding cells with at least one near to each band edge. It is not necessary to generate any of these BCCHs but, if provided the signal strengths of BCCHs shall be in the range 15 dBVemf( ) to 35 dBVemf( ).
NOTE 2: The ARFCN of any BCCH shall not be co-channel or on adjacent channels to the wanted traffic channel.
NOTE 3: When frequency hopping is used, the traffic channel may fall on any of the ARFCNs defined in clause 6.
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14.2.9.4.1 Initial conditions
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A call is set up according to the generic call set up procedure on a TCH/FS with ARFCN 70 for R-GSM 900 and ER-GSM 900, power control level set to maximum power.
NOTE: For R-GSM 900 and ER-GSM 900, ARFCN 70 is tested since this is the 73rd harmonic of the 13 MHz clock normally used internally in a MS.
The SS transmits Standard Test Signal C1 on the traffic channel.
The SS commands the MS to create traffic channel loop back signalling erased frames.
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14.2.9.4.2 Procedure
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a) The fading function is set to TUhigh.
b) the SS sets the amplitude of the wanted signal to reference sensitivity level ( ).
c) The SS compares the data of the signal that it sends to the MS with the signal which is looped back from the receiver after demodulation and decoding, and checks the frame erasure indication.
d) The SS determines the number of residual bit error events for the bits of class II, by examining sequences of at least the minimum number of samples of consecutive bits of class II. Bits are taken only from those frames not signalled as erased.
e) The SS determines the number of residual bit error events for the bits of the class Ib, by examining sequences of at least the minimum number of samples of consecutive bits of class Ib. Bits are only taken from those frames not signalled as erased.
f) The SS also determines the frame erasure events by examining sequences of at least the minimum number of samples of consecutive frames and assuming a frame is received successfully, if it is not signalled as erased.
g) Steps a) to d) are repeated under extreme test conditions.
h) Steps a) to g) are repeated for TCH/FS with ARFCN 5 and 964 for R-GSM 900 and ER-GSM 900 and the High ARFCN range.
NOTE: For R-GSM 900 and ER-GSM 900, ARFCN 5 and 964 are tested since they are the 72nd and 71st harmonic of the 13 MHz clock normally used internally in a MS.
i) Steps b) to d) are repeated with the SS fading function set in turn to RA and HT.
j) Steps b) to g) are repeated, with the SS fading function set to static and the MS is commanded by the SS into hopping mode using the hopping sequence defined in clause 6.
The amplitude of the wanted signal is set according to step b). All the other time slots, except the active ones, are set to 20 dB above reference sensitivity level( ). This implicitly tests adjacent time slot rejection.
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14.2.9.5 Test requirements
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The error rates measured for different channels and under the different propagation conditions, under any combination of normal and extreme test voltages and ambient temperatures, shall not exceed the test limit error rate values given in table 14-5b.
Table 14-5b: Limits for GSM 900 sensitivity
Channels
Propagation conditions TUhigh
Propagation conditions RA
Propagation conditions HT
Static conditions
Test limit error rate %
Minimum No. of samples
Test limit error rate %
Minimum No. of samples
Test limit error rate %
Minimum No. of samples
Test limit error rate %
Minimum No. of samples
TCH/FS
FER
6,742*
8900
0,122*
164000
class Ib(RBER)
0,42/
1000000
0,41/
20000000
class II(RBER)
8,333
120000
7,5
24000
9,333
60000
2,439
8200
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14.2.10 Reference sensitivity - TCH/AFS
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14.2.10.1 Definition
|
The reference sensitivity is the signal level at the MS receiver input at which a certain BER and FER must be achieved.
For E-GSM 900 MS this test is only performed in the P-GSM band.
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14.2.10.2 Conformance requirement
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1. At reference sensitivity level, the TCH/AFS FER shall meet the reference sensitivity performance of table 1 in 3GPP TS 05.05 subclause 6.2.
2. At reference sensitivity level, the TCH/AFS class Ib RBER shall meet the reference sensitivity, performance of table 1 in 3GPP TS 05.05 subclause 6.2.
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14.2.10.3 Test purpose
|
NOTE: This test is not performed under STATIC propagation conditions because the performance requirements are too small to be accurately measured.
1. To verify that the MS does not exceed conformance requirement 1 under TUhigh propagation conditions with an allowance for the statistical significance of the test.
2. To verify that the MS does not exceed conformance requirement 2 under TUhigh propagation conditions with an allowance for the statistical significance of the test.
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14.2.10.4 Method of test
|
NOTE 1: The BA list sent on the BCCH and SACCH will indicate at least six surrounding cells with at least one near to each band edge. It is not necessary to generate any of these BCCHs but, if provided the signal strengths of BCCHs shall be in the range 15 dBVemf( ) to 35 dBVemf( ).
NOTE 2: The ARFCN of any BCCH shall not be co-channel or on adjacent channels to the wanted traffic channel.
NOTE 3: When frequency hopping is used, the traffic channel may fall on any of the ARFCNs defined in clause 6.
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14.2.10.4.1 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 for GSM 400, GSM 700, T-GSM 810, GSM 850, DCS 1800 and PCS 1 900 and ARFCN 70 for GSM 900, power control level set to maximum power.
NOTE: For GSM 900 ARFCN 70 is tested since this is the 73rd harmonic of the 13 MHz clock normally used internally in a MS.
The multirate configuration indicates the use of a codec set limited to 12,2 kbit/s.
The SS transmits Standard Test Signal C1 on the traffic channel.
The SS commands the MS to create traffic channel loop back signalling erased frames.
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14.2.10.4.2 Procedure
|
a) The fading function is set to TUhigh.
b) the SS sets the amplitude of the wanted signal to reference sensitivity level ( ).
c) The SS compares the data of the signal that it sends to the MS with the signal which is looped back from the receiver after demodulation and decoding, and checks the frame erasure indication.
d) The SS determines the number of residual bit error events for the bits of class Ib, by examining sequences of at least the minimum number of samples of consecutive bits of class Ib. Bits are taken only from those frames not signalled as erased.
e) The SS also determines the frame erasure events by examining sequences of at least the minimum number of samples of consecutive frames and assuming a frame is received successfully, if it is not signalled as erased.
f) The SS uses a Channel Mode Modify procedure to change the active codec set to 10,2 kbit/s and steps a) to e) are repeated.
g) The SS uses a Channel Mode Modify procedure to change the active codec set to 7,4 kbit/s and steps a) to e) are repeated.
Maximum/Minimum Duration of Test
Statistical test method, pre Rel-5 MS
Maximum: 31 minutes (GSM850, GSM900), 83 minutes (DCS1800, PCS1900).
Minimum: 10 minutes (GSM850, GSM900), 5 minutes (DCS1800, PCS1900).
Statistical test method, Rel-5 onwards MS
Maximum: 31 minutes (GSM850, GSM900), 278 minutes (DCS1800, PCS1900).
Minimum: 10 minutes (GSM850, GSM900), 9 minutes (DCS1800, PCS1900).
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14.2.10.5 Test requirements
|
Testing the reference sensitivity performance is performed using statistical methods that lead to an early pass/fail decision with test time significantly reduced for MS with BER/BLER not on the limit.
For more information on statistical testing of BER/BLER performance, especially the definition of the limit lines refer to Annex 6.2
Wrong decision risk F for one single error 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.
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 14-36: 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 rates measured for different channels and under the different propagation conditions, shall be tested according to the values given in table 14-37 or 14-38.
Table 14-37: Statistical test limits for GSM 400, GSM 700, T-GSM 810, GSM 850 and GSM 900 sensitivity
TU high no FH
0.4 to 0.9GHz
frames per s
Orig. BER
Derived
Target number
Target test
Target test time
Channel
bits per sec
clas1b per s
requirement
test limit
of samples
time (s)
(hh:mm:ss)
AFS 12.2
frames
12200
50
0,049000
0,060466
5706
114
00:01:54
Class1b
12200
8150
0,015000
0,018510
18639
2
00:00:02
AFS 10.2
frames
10200
50
0,021000
0,025914
13313
266
00:04:26
Class1b
10200
6950
0,002300
0,002838
121556
17
00:00:17
AFS 7.4
frames
7400
50
0,004100
0,005059
68190
1364
00:22:44
Class1b
7400
4350
0,000540
0,000666
517738
119
00:01:59
Table 14-38: Statistical test limits for DCS 1 800 and PCS 1 900 sensitivity
TU high no FH
1.8 to 1.9 GHz
frames per s
Orig. BER
Derived
Target number
Target test
Target test time
Channel
bits per sec
clas1b per s
requirement
test limit
of samples
time (s)
(hh:mm:ss)
AFS 12.2
frames
12200
50
Pre Rel-5:
0,030000
Rel-5:
0,020000
Pre Rel-5:
0,037020
Rel-5:
0,024680
Pre Rel-5:
9320
Rel-5:
13979
Pre Rel-5:
186
Rel-5:
280
Pre Rel-5:
00:03:06
Rel-5:
00:04:40
Class1b
12200
8150
Pre Rel-5:
0,0150000
Rel-5:
0,014000
Pre Rel-5:
0,018510
Rel-5:
0,017276
Pre Rel-5:
18639
Rel-5:
19970
Pre Rel-5:
2
Rel-5:
2
Pre Rel-5:
00:00:02
Rel-5:
00:00:02
AFS 10.2
frames
10200
50
Pre Rel-5:
0,012000
Rel-5:
0,006500
Pre Rel-5:
0,014808
Rel-5:
0,008021
Pre Rel-5:
23299
Rel-5:
43012
Pre Rel-5:
466
Rel-5:
860
Pre Rel-5:
00:07:46
Rel-5:
00:14:20
Class1b
10200
6950
Pre Rel-5:
0,001700
Rel-5:
0,001200
Pre Rel-5:
0,002098
Rel-5:
0,001481
Pre Rel-5:
164458
Rel-5:
232982
Pre Rel-5:
24
Rel-5:
34
Pre Rel-5:
00:00:24
Rel-5:
00:00:34
AFS 7.4
frames
7400
50
Pre Rel-5:
0,001300
Rel-5:
0,000360
Pre Rel-5:
0,001604
Rel-5:
0,000444
Pre Rel-5:
215061
Rel-5:
776607
Pre Rel-5:
4301
Rel-5:
15532
Pre Rel-5:
01:11:41
Rel-5:
04:18:52
Class1b
7400
4350
Pre Rel-5:
0,000260
Rel-5:
0,000130
Pre Rel-5:
0,000321
Rel-5:
0,000160
Pre Rel-5:
1075302
Rel-5:
2150605
Pre Rel-5:
247
Rel-5:
494
Pre Rel-5:
00:04:07
Rel-5:
00:08:14
14.2.10a Reference sensitivity - TCH/AFS in TIGHTER configuration
14.2.10a.1 Definition
The reference sensitivity is the signal level at the MS receiver input at which a certain BER and FER must be achieved.
14.2.10a.2 Conformance requirement
3GPP TS 45.005 subclause 6.2.5
The reference performance for Tightened Link Level Performance (TIGHTER) specified in table 1w, shall be
For speech channels (TCH/FS, TCH/HS, TCH/EFS, TCH/AFSx, TCH/AHSx, TCH/WFSx ) FER: 1 %
In addition for speech channels the residual class Ib BER and residual class II BER performance shall not exceed the specified values in table 1w at the corresponding signal level in dBm. The reference sensitivity level in section 6.2.1 shall be applied for TIGHTER MS.
14.2.10a.3 Test purpose
NOTE: This test is not performed under STATIC propagation conditions because the performance requirements are too small to be accurately measured.
1. For TCH AFS/FER, MS shall meet the reference sensitivity performance mentioned in 3GPP TS 45.005 sub clause 6.2.5, for reference sensitivity level mentioned in Table 1w according to propagation conditions.
2. For TCH/AFS class Ib RBER, MS shall meet the reference sensitivity performance mentioned in 3GPP TS 45.005 sub clause 6.2.5, for reference sensitivity level mentioned in Table 1w according to propagation conditions.
14.2.10a.4 Method of test
NOTE 1: The BA list sent on the BCCH and SACCH will indicate at least six surrounding cells with at least one near to each band edge. It is not necessary to generate any of these BCCHs but, if provided the signal strengths of BCCHs shall be in the range 15 dBVemf( ) to 35 dBVemf( ).
NOTE 2: The ARFCN of any BCCH shall not be co-channel or on adjacent channels to the wanted traffic channel.
14.2.10a.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 for GSM 400, GSM 700, T-GSM 810, GSM 850, DCS 1800 and PCS 1 900 and ARFCN 70 for GSM 900, power control level set to maximum power.
NOTE: For GSM 900 ARFCN 70 is tested since this is the 73rd harmonic of the 13 MHz clock normally used internally in a MS.
The multirate configuration indicates the use of a codec set limited to 12,2 kbit/s.
The SS transmits Standard Test Signal C1 on the traffic channel.
The SS commands the MS to create traffic channel loop back signalling erased frames.
Specific PICS Statements:
-
14.2.10a.4.2 Procedure
a) The fading function is set to TUhigh no FH.
b) The SS sets the amplitude of the wanted signal to reference sensitivity as defined in Table 1w.
c) The SS compares the data of the signal that it sends to the MS with the signal which is looped back from the receiver after demodulation and decoding, and checks the frame erasure indication.
d) The SS determines the number of residual bit error events for the bits of class Ib, by examining sequences of at least the minimum number of samples of consecutive bits of class Ib. Bits are taken only from those frames not signalled as erased.
e) The SS also determines the frame erasure events by examining sequences of at least the minimum number of samples of consecutive frames and assuming a frame is received successfully, if it is not signalled as erased.
f) The SS uses a Channel Mode Modify procedure to change the active codec set to 10,2 kbit/s and steps a) to e) are repeated.
g) The SS uses a Channel Mode Modify procedure to change the active codec set to 7,4 kbit/s and steps a) to e) are repeated.
Maximum/Minimum Duration of Test
Maximum: 31 minutes (GSM850, GSM900), 278 minutes (DCS1800, PCS1900).
Minimum: 10 minutes (GSM850, GSM900), 9 minutes (DCS1800, PCS1900).
14.2.10a.5 Test requirements
Testing the reference sensitivity performance is performed using statistical methods that lead to an early pass/fail decision with test time significantly reduced for MS with BER/BLER not on the limit.
For more information on statistical testing of BER/BLER performance, especially the definition of the limit lines refer to Annex 6.2
Wrong decision risk F for one single error 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.
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 14.2.10a.5-1: Minimum test times due to TU high fading conditions
Full Rate 50 km/h
Frequency
0,4
0,7
0,85
0,9
1,8
1,9
GHz
Wavelength
0,75
0,43
0,35
0,33
0,17
0,16
M
min test time
428
244
201
190
95
90
S
0:07:08
0:04:04
0:03:21
0:03:10
0:01:35
0:01:30
hh:mm:ss
If the minimum test time due to multipath conditions exceeds the target test time, then the test runs for the minimum test time due to multipath conditions and the decision is done by comparing the result with the “derived test limit”. In this case early pass/fail decisions are obsolete.
If the target test time exceeds the minimum test time due to multipath conditions early pass/fail decisions can be headed for in order to accelerate test execution.
For an early decision a minimum number of (error) events is necessary.
For an early pass decision ne ≥ 1 (inclusive artificial error)
For an early fail decision ne ≥ 7
When the target test time has been reached the test is finished and a pass/fail decision can be made.
The error rates measured for different channels and under the different propagation conditions shall be tested according to the values given in table 14.2.10a.5-2 to 14.2.10a.5-3.
Table 14.2.10a.5-2 : Statistical test limits for GSM 850 and GSM 900 sensitivity
TU high no FH
0.4 to 0.9GHz
frames per s
Orig. BER
Derived
Target number
Target test
Target test time
Channel
bits per sec
clas1b per s
requirement
test limit
of samples
time (s)
(hh:mm:ss)
AFS 12.2
frames
12200
50
0,049000
0,060466
5706
114
00:01:54
Class1b
12200
8150
0,015000
0,018510
18639
2
00:00:02
AFS 10.2
frames
10200
50
0,021000
0,025914
13313
266
00:04:26
Class1b
10200
6950
0,002300
0,002838
121556
17
00:00:17
AFS 7.4
frames
7400
50
0,004100
0,005059
68190
1364
00:22:44
Class1b
7400
4350
0,000540
0,000666
517738
119
00:01:59
Table 14.2.10a.5-3 : Statistical test limits for DCS 1 800 and PCS 1 900 sensitivity
TU high no FH
1.8 to 1.9 GHz
frames per s
Orig. BER
Derived
Target number
Target test
Target test time
Channel
bits per sec
clas1b per s
requirement
test limit
of samples
time (s)
(hh:mm:ss)
AFS 12.2
frames
12200
50
0,020000
0,024680
13979
280
00:04:40
Class1b
12200
8150
0,014000
0,017276
19970
2
00:00:02
AFS 10.2
frames
10200
50
0,006500
0,008021
43012
860
00:14:20
Class1b
10200
6950
0,001200
0,001481
232982
34
00:00:34
AFS 7.4
frames
7400
50
0,000360
0,000444
776607
15532
04:18:52
Class1b
7400
4350
0,000130
0,000160
2150605
494
00:08:14
14.2.11 to 14.2.17 Void
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.2.18 Reference sensitivity - TCH/AHS
| |
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.2.18.1 Definition
|
The reference sensitivity level is the signal level at the MS receiver input at which a certain BER and FER for speech frames must be achieved.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.2.18.2 Conformance requirement
|
1. At reference sensitivity level, the TCH/AHS FER shall meet the reference sensitivity performance of table 1 in 3GPP TS 05.05 subclause 6.2.
2 At reference sensitivity level, the TCH/AHS class Ib RBER (BFI=0) shall meet the reference sensitivity performance of table 1 in 3GPP TS 05.05 subclause 6.2.
3 At reference sensitivity level, the TCH/AHS class II RBER (BFI=0) shall meet the reference sensitivity performance of table 1 in 3GPP TS 05.05 subclause 6.2.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.2.18.3 Test purpose
|
1. To verify that the MS does not exceed conformance requirement 1 under TUhigh propagation conditions with an allowance for the statistical significance of the test.
2. To verify that the MS does not exceed conformance requirement 2 under TUhigh propagation conditions with an allowance for the statistical significance of the test.
3. To verify that the MS does not exceed conformance requirement 3 under TUhigh, RA and HT propagation conditions with an allowance for the statistical significance of the test.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.2.18.4 Method of test
| |
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.2.18.4.1 Initial conditions
|
The BA list sent on the BCCH and SACCH indicates at least six surrounding cells, with at least one near to each band edge. It is not necessary to generate any of these BCCHs, but if provided, the signal strengths of BCCHs shall be in the range 15 dBVemf( ) to 35 dBVemf( ).
The ARFCN of any BCCH shall not be co-channel or on adjacent channels to the wanted traffic channel.
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 5,15 kbit/s.
The SS transmits Standard Test Signal C1 on the traffic channel.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.2.18.4.2 Procedure
|
a) The SS commands the MS to create traffic channel loop back signalling erased frames.
NOTE: Frames detected with BFI=1 are signalled as erased on the uplink.
b) The fading function is set to TUHigh.
c) The SS sets the amplitude of the wanted signal to reference sensitivity level ( ).
d) The SS compares the data of the signal that it sends to the MS with the signal which is looped back from the receiver after demodulation and decoding, and checks the frame erasure indication.
e) The SS determines the number of residual bit error events for the bits of class II, by examining sequences of 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 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.
g) The SS also determines the frame erasure events by examining sequences of at least the minimum number of samples of consecutive frames and assuming a frame is received successfully, if it is not signalled as erased.
h) The SS uses a Channel Mode Modify procedure to change the active codec set to 4,75 kbit/s and steps d) to g) are repeated.
i) The fading function is set to HT.
j) The SS uses a Channel Mode Modify procedure to change the active codec set to 7,4 kbit/s and steps d) to g) are repeated.
k) The SS uses a Channel Mode Modify procedure to change the active codec set to 5,9 kbit/s and steps d) to g) are repeated.
l) The fading function is set to RA.
m) The SS uses a Channel Mode Modify procedure to change the active codec set to 7,95 kbit/s and steps d) to g) are repeated.
n) The SS uses a Channel Mode Modify procedure to change the active codec set to 6,7 kbit/s and steps d) to g) are repeated.
Maximum/Minimum Duration of Test
Pre Rel-5 MS
Maximum: 24 minutes (GSM850), 23 minutes (GSM900), 15 minutes (DCS1800, PCS1900).
Minimum: 23 minutes (GSM850), 22 minutes (GSM900), 12 minutes (DCS1800, PCS1900).
Rel -5 onwards MS
Maximum: 24 minutes (GSM850), 23 minutes (GSM900), 17 minutes (DCS1800, PCS1900).
Minimum: 23 minutes (GSM850), 22 minutes (GSM900), 12 minutes (DCS1800, PCS1900).
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.2.18.5 Test requirements
|
Testing the reference sensitivity 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 range. No early pass/fail decision is allowed until the minimum test time due to fading has elapsed.
Table 14-39: 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
hh.mm:ss
Table 14-40: Minimum test times due to HT 100 fading conditions
Half Rate 100 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
Table 14-x: Minimum test times due to RA 130 fading conditions
Half Rate 130 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
-
-
-
-
73
69
s
-
-
-
-
0:01:13
0:01:09
Table 14-41: Minimum test times due to RA 250 fading conditions
Half Rate 250 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
171
98
81
76
-
-
s
0:02:51
0:01:38
0:01:21
0:01:16
-
-
hh:mm:ss
If the minimum test time due to multipath conditions exceeds the target test time, then the test runs for the minimum test time due to multipath conditions and the decision is done by comparing the result with the “derived test limit”. In this case early pass/fail decisions are obsolete.
If the target test time exceeds the minimum test time due to multipath conditions early pass/fail decisions can be headed for in order to accelerate test execution.
For an early decision a minimum number of (error) events is necessary.
For an early pass decision ne ≥ 1 (inclusive artificial error)
For an early fail decision ne ≥ 7
When the target test time has been reached the test is finished and a pass/fail decision can be made.
The error rates measured for different channels and under the different propagation conditions, shall be tested according to the values given in table 14-42 or 14-43.
Table 14-42: Statistical test limits for GSM 400, GSM 700, T-GSM 810, GSM 850 and GSM 900: fading TU high
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 5.15
frames
5150
50
0,025000
0,030850
11183
224
00:03:44
Class1b
5150
2100
0,005100
0,006293
54819
26
00:00:26
Class II
5150
600
0,063000
0,077742
4438
7
00:00:07
AHS 4.75
frames
4750
50
0,012000
0,014808
23298
466
00:07:46
Class1b
4750
2200
0,001700
0,002098
164458
75
00:01:15
Class II
4750
600
0,064000
0,078976
4368
7
00:00:07
Table 14-43: Statistical test limits for GSM 400, GSM 700, T-GSM 810, GSM 850 and GSM 900: fading RA 250
RA 250 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
clas II per s
AHS 7.95
frames
7950
50
Class1b
7950
2800
Class II
7950
1800
Pre Rel-5:
0,059000
Rel-5:
0,047000
Pre Rel-5:
0,072806
Rel-5:
0,057998
Pre Rel-5:
4739
Rel-5:
5948
Pre Rel-5:
3
Rel-5:
3
Pre Rel-5:
00:00:03
Rel-5:
00:00:03
AHS 6.7
frames
6700
50
Class1b
6700
2750
Class II
6700
1200
Pre Rel-5:
0,065000
Rel-5:
0,055000
Pre Rel-5:
0,080210
Rel-5:
0,067870
Pre Rel-5:
4302
Rel-5:
5083
Pre Rel-5:
4
Rel-5:
4
Pre Rel-5:
00:00:04
Rel-5:
00:00:04
Table 14-44: Statistical test limits for GSM 400, GSM 700, T-GSM 810, GSM 850 and GSM 900: fading HT 100
HT 100 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
clas II per s
AHS 7.4
frames
7400
50
Class1b
7400
2950
Class II
7400
1400
Pre Rel-5:
0,069000
Rel-5:
0,060000
Pre Rel-5:
0,085146
Rel-5:
0,074040
Pre Rel-5:
4052
Rel-5:
4660
Pre Rel-5:
3
Rel-5:
3
Pre Rel-5:
00:00:03
Rel-5:
00:00:03
AHS 5.9
frames
5900
50
Class1b
5900
2350
Class II
5900
800
Pre Rel-5:
0,083000
Rel-5:
0,068000
Pre Rel-5:
0.102422
Rel-5:
0,083912
Pre Rel-5:
3369
Rel-5:
4111
Pre Rel-5:
4
Rel-5:
5
Pre Rel-5:
00:00:04
Rel-5:
00:00:05
Table 14-45: Statistical test limits for DCS 1 800 and PCS 1 900 sensitivity: fading TU high
TU high no FH
1.8 and 1.9 GHz
frames per s
Orig. BER
Derived
Target number
Target test
Target test time
clas1b per s
requirement
test limit
of samples
time (s)
(hh:mm:ss)
Channel
bits per sec
class II per s
AHS 5.15
frames
5150
50
0,026000
0,032084
10753
215
00:03:35
Class1b
5150
2100
0,005300
0,006540
52751
25
00:00:25
Class II
5150
600
0,063000
0,077742
4438
7
00:00:07
AHS 4.75
frames
4750
50
Pre Rel-5:
0,017000
Rel-5:
0,012000
Pre Rel-5:
0,020978
Rel-5:
0,014808
Pre Rel-5:
16446
Rel-5:
23298
Pre Rel-5:
329
Rel-5:
466
Pre Rel-5:
00:05:29
Rel-5:
00:07:46
Class1b
4750
2200
Pre Rel-5:
0,002500
Rel-5:
0,001800
Pre Rel-5:
0,003085
Rel-5:
0,002221
Pre Rel-5:
111832
Rel-5:
155321
Pre Rel-5:
51
Rel-5:
71
Pre Rel-5:
00:00:51
Rel-5:
00:01:11
Class II
4750
600
0,065000
0,080210
4301
7
00:00:07
Table 14-46: Statistical test limits for DCS 1 800 and PCS 1 900 sensitivity: fading RA 130
RA 130 no FH
1.8 and 1.9 GHz
frames per s
Orig. BER
Derived
Target number
Target test
Target test time
clas1b per s
requirement
test limit
of samples
time (s)
(hh:mm:ss)
Channel
bits per sec
clas II per s
AHS 7.95
frames
7950
50
Class1b
7950
2800
Class II
7950
1800
Pre Rel-5:
0,059000
Rel-5:
0,048000
Pre Rel-5:
0,072806
Rel-5:
0,059232
Pre Rel-5:
4739
Rel-5:
5825
Pre Rel-5:
3
Rel-5:
3
Pre Rel-5:
00:00:03
Rel-5:
00:00:03
AHS 6.7
frames
6700
50
Class1b
6700
2750
Class II
6700
1250
Pre Rel-5:
0,065000
Rel-5:
0,055000
Pre Rel-5:
0,080210
Rel-5:
0,067870
Pre Rel-5:
4302
Rel-5:
5083
Pre Rel-5:
3
Rel-5:
4
Pre Rel-5:
00:00:03
Rel-5:
00:00:04
Table 14-47: Statistical test limits for DCS 1 800 and PCS 1 900 sensitivity: fading HT 100
HT 100 no FH
1.8 and 1.9 GHz
frames per s
Orig. BER
Derived
Target number
Target test
Target test time
clas1b per s
requirement
test limit
of samples
time (s)
(hh:mm:ss)
Channel
bits per sec
clas II per s
AHS 7.4
frames
7400
50
Class1b
7400
2950
Class II
7400
1400
Pre Rel-5:
0,071000
Rel-5:
0,060000
Pre Rel-5:
0,087614
Rel-5:
0,074040
Pre Rel-5:
3938
Rel-5:
4660
Pre Rel-5:
3
Rel-5:
3
Pre Rel-5:
00:00:03
Rel-5:
00:00:03
AHS 5.9
frames
5900
50
Class1b
5900
2350
Class II
5900
800
Pre Rel-5:
0,084000
Rel-5:
0,068000
Pre Rel-5:
0,103656
Rel-5:
0,083912
Pre Rel-5:
3329
Rel-5:
4111
Pre Rel-5:
4
Rel-5:
5
Pre Rel-5:
00:00:04
Rel-5:
00:00:05
14.2.18a Reference sensitivity - TCH/AHS in TIGHTER configuration
14.2.18a.1 Definition
The reference sensitivity level is the signal level at the MS receiver input at which a certain BER and FER for speech frames must be achieved.
14.2.18a.2 Conformance requirement
3GPP TS 45.005 subclause 6.2.5
The reference performance for Tightened Link Level Performance (TIGHTER) specified in table 1w, shall be
For speech channels (TCH/FS, TCH/HS, TCH/EFS, TCH/AFSx, TCH/AHSx, TCH/WFSx ) FER: 1 %
In addition for speech channels the residual class Ib BER and residual class II BER performance shall not exceed the specified values in table 1w at the corresponding signal level in dBm. The reference sensitivity level in section 6.2.1 shall be applied for TIGHTER MS.
14.2.18a.3 Test purpose
1. For TCH AHS/FER, MS shall meet the reference sensitivity performance mentioned in 3GPP TS 45.005 sub clause 6.2.5, for reference sensitivity level mentioned in Table 1w according to propagation conditions.
2. At reference sensitivity level, the TCH/AHS class Ib RBER (BFI=0) shall meet the performance mentioned in table 1w in 3GPP TS 45.005.
3. At reference sensitivity level, the TCH/AHS class II RBER (BFI=0) shall meet the performance mentioned in table 1w in 3GPP TS 45.005.
14.2.18a.4 Method of test
14.2.18a.4.1 Initial conditions
The BA list sent on the BCCH and SACCH indicates at least six surrounding cells, with at least one near to each band edge. It is not necessary to generate any of these BCCHs, but if provided, the signal strengths of BCCHs shall be in the range 15 dBVemf( ) to 35 dBVemf( ).
The ARFCN of any BCCH shall not be co-channel or on adjacent channels to the wanted traffic channel.
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 5,15 kbit/s.
The SS transmits Standard Test Signal C1 on the traffic channel.
14.2.18a.4.2 Procedure
a) The SS commands the MS to create traffic channel loop back signalling erased frames.
NOTE: Frames detected with BFI=1 are signalled as erased on the uplink.
b) The fading function is set to TUHigh.
c) The SS sets the amplitude of the wanted signal to reference sensitivity as defined in Table 1w.
d) The SS compares the data of the signal that it sends to the MS with the signal which is looped back from the receiver after demodulation and decoding, and checks the frame erasure indication.
e) The SS determines the number of residual bit error events for the bits of class II, by examining sequences of 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 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.
g) The SS also determines the frame erasure events by examining sequences of at least the minimum number of samples of consecutive frames and assuming a frame is received successfully, if it is not signalled as erased.
h) The SS uses a Channel Mode Modify procedure to change the active codec set to 4,75 kbit/s and steps d) to g) are repeated.
i) The fading function is set to HT.
j) The SS uses a Channel Mode Modify procedure to change the active codec set to 7,4 kbit/s and steps d) to e) are repeated.
k) The SS uses a Channel Mode Modify procedure to change the active codec set to 5,9 kbit/s and steps d) to e) are repeated.
l) The fading function is set to RA.
m) The SS uses a Channel Mode Modify procedure to change the active codec set to 7,95 kbit/s and steps d) to e) are repeated.
n) The SS uses a Channel Mode Modify procedure to change the active codec set to 6,7 kbit/s and steps d) to e) are repeated.
Maximum/Minimum Duration of Test
Maximum: 24 minutes (GSM850), 23 minutes (GSM900), 17 minutes (DCS1800, PCS1900).
Minimum: 23 minutes (GSM850), 22 minutes (GSM900), 12 minutes (DCS1800, PCS1900).
14.2.18a.5 Test requirements
Testing the reference sensitivity 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 range. No early pass/fail decision is allowed until the minimum test time due to fading has elapsed.
Table 14.2.18a.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
hh.mm:ss
Table 14.2.18a.5-2: Minimum test times due to HT 100 fading conditions
Half Rate 100 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
Table 14.2.18a.5-3: Minimum test times due to RA 130 fading conditions
Half Rate 130 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
-
-
-
-
73
69
s
-
-
-
-
0:01:13
0:01:09
Table 14.2.18a.5-4: Minimum test times due to RA 250 fading conditions
Half Rate 250 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
171
98
81
76
-
-
s
0:02:51
0:01:38
0:01:21
0:01:16
-
-
hh:mm:ss
If the minimum test time due to multipath conditions exceeds the target test time, then the test runs for the minimum test time due to multipath conditions and the decision is done by comparing the result with the “derived test limit”. In this case early pass/fail decisions are obsolete.
If the target test time exceeds the minimum test time due to multipath conditions early pass/fail decisions can be headed for in order to accelerate test execution.
For an early decision a minimum number of (error) events is necessary.
For an early pass decision ne ≥ 1 (inclusive artificial error)
For an early fail decision ne ≥ 7
When the target test time has been reached the test is finished and a pass/fail decision can be made.
The error rates measured for different channels and under the different propagation conditions shall be tested according to the values given in tables below:
Table 14.2.18a.5-5: Statistical test limits for GSM 400, GSM 700, T-GSM 810, GSM 850 and GSM 900: fading TU high
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 5.15
frames
5150
50
0,025000
0,030850
11183
224
00:03:44
Class1b
5150
2100
0,005100
0,006293
54819
26
00:00:26
Class II
5150
600
0,063000
0,077742
4438
7
00:00:07
AHS 4.75
frames
4750
50
0,012000
0,014808
23298
466
00:07:46
Class1b
4750
2200
0,001700
0,002098
164458
75
00:01:15
Class II
4750
600
0,064000
0,078976
4368
7
00:00:07
Table 14.2.18a.5-6: Statistical test limits for GSM 400, GSM 700, T-GSM 810, GSM 850 and GSM 900: fading RA 250
RA 250 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
clas II per s
AHS 7.95
frames
7950
50
0.0100
0.012340
27957
559
00:09:19
Class1b
7950
2800
0.0044
0.005429
63541
23
00:00:23
Class II
7950
1800
0.0191
0.023569
14638
8
00:00:08
AHS 6.7
frames
6700
50
0.0100
0.012340
27957
559
00:09:31
Class1b
6700
2750
0.0029
0.003578
96406
35
00:00:35
Class II
6700
1200
0.0342
0.042202
8175
7
00:00:07
Table 14.2.18a.5-7: Statistical test limits for GSM 400, GSM 700, T-GSM 810, GSM 850 and GSM 900: fading HT 100
HT 100 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
clas II per s
AHS 7.4
frames
7400
50
0.0100
0.012340
27957
559
00:09:19
Class1b
7400
2950
0.0023
0.002838
121556
41
00:00:41
Class II
7400
1400
0.0237
0.029245
11797
8
00:00:08
AHS 5.9
frames
5900
50
0.0100
0.012340
27957
559
00:09:31
Class1b
5900
2350
0.0017
0.002097
164458
70
00:01:10
Class II
5900
800
0.0408
0.050347
6852
9
00:00:09
Table 14.2.18a.5-8: Statistical test limits for DCS 1800 and PCS 1900 sensitivity: fading TU high
TU high no FH
1.8 and 1.9 GHz
frames per s
Orig. BER
Derived
Target number
Target test
Target test time
clas1b per s
requirement
test limit
of samples
time (s)
(hh:mm:ss)
Channel
bits per sec
class II per s
AHS 5.15
frames
5150
50
0,026000
0,032084
10753
215
00:03:35
Class1b
5150
2100
0,005300
0,006540
52751
25
00:00:25
Class II
5150
600
0,063000
0,077742
4438
7
00:00:07
AHS 4.75
frames
4750
50
0,012000
0,014808
23298
466
00:07:46
Class1b
4750
2200
0,001800
0,002221
155321
71
00:01:11
Class II
4750
600
0,065000
0,080210
4301
7
00:00:07
Table 14.2.18a.5-9: Statistical test limits for DCS 1800 and PCS 1900 sensitivity: fading RA 130
RA 130 no FH
1.8 and 1.9 GHz
frames per s
Orig. BER
Derived
Target number
Target test
Target test time
clas1b per s
requirement
test limit
of samples
time (s)
(hh:mm:ss)
Channel
bits per sec
clas II per s
AHS 7.95
frames
7950
50
0.0100
0.012340
27957
559
00:09:19
Class1b
7950
2800
0,004
0.004936
69895
24
00:00:24
Class II
7950
1800
0,018
0.022221
15532
9
00:00:09
AHS 6.7
frames
6700
50
0.0100
0.012340
27957
559
00:09:19
Class1b
6700
2750
0,003
0.003702
93193
33
00:00:33
Class II
6700
1200
0,03
0.03702
9319
8
00:00:08
Table 14.2.18a.5-10: Statistical test limits for DCS 1800 and PCS 1900 sensitivity: fading HT 100
HT 100 no FH
1.8 and 1.9 GHz
frames per s
Orig. BER
Derived
Target number
Target test
Target test time
clas1b per s
requirement
test limit
of samples
time (s)
(hh:mm:ss)
Channel
bits per sec
clas II per s
AHS 7.4
frames
7400
50
0.0100
0.012340
27957
559
00:09:19
Class1b
7400
2950
0.0023
0.002838
121556
41
00:00:41
Class II
7400
1400
0.0258
0.031837
10836
8
00:00:08
AHS 5.9
frames
5900
50
0.0100
0.012340
27957
559
00:09:31
Class1b
5900
2350
0.0019
0.002344
147147
63
00:01:03
Class II
5900
800
0.0426
0.052568
6563
8
00:00:08
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14.2.19 Reference sensitivity - TCH/AFS-INB
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51.010-1
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14.2.19.1 Definition
|
The reference sensitivity is the signal level at the MS receiver input at which a certain FER for in band signalling codewords or frames must be achieved.
For E-GSM 900 MS this test is only performed in the P-GSM band.
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14.2.19.2 Conformance requirement
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1. At reference sensitivity level, the TCH/AFS-INB FER shall meet the reference sensitivity performance of table 1 in 3GPP TS 45.005 subclause 6.2.
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.
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14.2.19.3 Test purpose
|
NOTE: This test is not performed under STATIC propagation conditions because the performance requirements are too small to be accurately measured.
1. To verify that the MS does not exceed conformance requirement 1 under TUhigh propagation conditions with an allowance for the statistical significance of the test.
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14.2.19.4 Method of test
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NOTE 1: The BA list sent on the BCCH and SACCH will indicate at least six surrounding cells with at least one near to each band edge. It is not necessary to generate any of these BCCHs but, if provided the signal strengths of BCCHs shall be in the range 15 dBVemf( ) to 35 dBVemf( ).
NOTE 2: The ARFCN of any BCCH shall not be co-channel or on adjacent channels to the wanted traffic channel.
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14.2.19.4.1 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 for GSM 400, GSM 700, T-GSM 810, GSM 850, DCS 1800 and PCS 1 900 and ARFCN 70 for GSM 900, power control level set to maximum power.
NOTE: For GSM 900 ARFCN 70 is tested since this is the 73rd harmonic of the 13 MHz clock normally used internally in a MS.
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 codewords by closing a Loop I.
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14.2.19.4.2 Procedure
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a) The fading function is set to TUhigh.
b) The SS sets the amplitude of the wanted signal to reference sensitivity level ( ).
c) The SS shall change the Codec Mode Indication and Codec Mode Command 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 CMI/CMC pattern shall be repeated until the minimum required number of frame samples has been sent to the MS.
d) The SS compares the in band signalling codewords/frames it sends to the MS with the in band signalling codewords/frames which are looped back from the receiver after demodulation and decoding, and checks for in band signalling (CMI/CMC) frame errors.
e) 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 inband 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: 50 minutes (GSM850, GSM900, DCS1800, PCS1900).
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14.2.19.5 Test requirements
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The frame error rates measured for different channels shall not exceed the test limit error rate values given in table 14.2.19-1 or 14.2.19-2.
Table 14.2.19-1: Limits for GSM 400, GSM 700, T-GSM 810, GSM 850 and GSM 900 sensitivity
Channels
Propagation conditions Tuhigh
Test limit
error rate %
Minimum No.
of samples
TCH/AFS-INB (FER)
0.047
150000
Table 14.2.19-2: Limits for DCS 1 800 and PCS 1 900 sensitivity
Channels
Propagation conditions TUhigh
Test limit
error rate %
Minimum No.
of samples
TCH/AFS-INB (FER)
0.015
150000
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14.2.20 Reference sensitivity - TCH/AHS-INB
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14.2.20.1 Definition
|
The reference sensitivity level is the signal level at the MS receiver input at which a certain FER for in band signalling codewords or frames must be achieved.
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14.2.20.2 Conformance requirement
|
1. At reference sensitivity level, the TCH/AHS-INB FER shall meet the reference sensitivity performance of table 1 in 3GPP TS 45.005 subclause 6.2.
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.
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14.2.20.3 Test purpose
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1. To verify that the MS does not exceed conformance requirement 1 under TUhigh propagation conditions with an allowance for the statistical significance of the test.
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14.2.20.4 Method of test
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14.2.20.4.1 Initial conditions
|
The BA list sent on the BCCH and SACCH indicates at least six surrounding cells, with at least one near to each band edge. It is not necessary to generate any of these BCCHs, but if provided, the signal strengths of BCCHs shall be in the range 15 dBVemf( ) to 35 dBVemf( ).
The ARFCN of any BCCH shall not be co-channel or on adjacent channels to the wanted traffic channel.
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 and with the following sets of codec 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).
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14.2.20.4.2 Procedure
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a) The SS commands the MS to loop back in band signalling codewords by closing a Loop I.
b) The fading function is set to TUhigh.
c) The SS sets the amplitude of the wanted signal to reference sensitivity level ( ).
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 CMI/CMC 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 codewords/frames it sends to the MS with the in band signalling codewords/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 inband 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: 25 minutes (GSM850, GSM900), 28 minutes (DCS1800, PCS1900).
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14.2.20.5 Test requirements
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The error rates measured for different channels and under the different propagation conditions, shall not exceed the test limit error rate values given in table 14.2.20-1 or 14.2.20-2.
Table 14.2.20-1: Limits for GSM 400, GSM 700, T-GSM 810, GSM 850 and GSM 900 sensitivity
Channels
Propagation conditions TUhigh
Test limit
error rate %
Minimum No.
of samples
TCH/AHS-INB (FER)
0.806
74000
Table 14.2.20-2: Limits for DCS 1800 and PCS 1 900 sensitivity
Channels
Propagation conditions TUhigh
Test limit
error rate %
Minimum No.
of samples
TCH/AHS-INB (FER)
0.717
83000
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14.2.21 Reference sensitivity – O-TCH/AHS
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14.2.21.1 Definition
|
-
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51.010-1
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14.2.21.2 Conformance requirement
|
For 8-PSK modulated speech channels for AMR, associated control channels and inband signalling, the minimum input signal level for which the reference performance shall be met is specified in table 1g
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 shall be:
For speech channels (O-TCH/AHSy) FER £ 1%
All other requirements in tables 1f and 1g shall be fulfilled at this input level for reference performance.
3GPP TS 45.005, subclause 6.2.
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683b5b8a98f7b1390ddd5516ea9247a2
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51.010-1
|
14.2.21.3 Test purpose
|
To verify that the MS does not exceed conformance requirement for FER and class 1b RBER under HT100 propagation conditions with an allowance for the statistical significance of the test, for channel combinations O-TCH/AHS10.2 and O-TCH/AHS 5.15
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.2.21.4 Method of test
| |
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.2.21.4.1 Initial conditions
|
A call is set up according to the generic call set up procedure on a O-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 10,2 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).
|
683b5b8a98f7b1390ddd5516ea9247a2
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51.010-1
|
14.2.21.4.2 Procedure
|
a) The fading function is set to HT100.
b) The SS sets the level of the wanted signal to that indicated by Clev in table 14.2.21-2 or 14.2.21-3.
c) The SS compares the data of the signal that it sends to the MS with the signal which is looped back from the receiver after demodulation and decoding, and checks the frame erasure indication.
d) The SS determines the number of residual bit error events for the bits of the class Ib, by examining sequences of at least the minimum number of samples of consecutive bits of class Ib. Bits are only taken from those frames not signalled as erased.
e) The SS also determines the frame erasure events by examining sequences of at least the minimum number of samples of consecutive frames and assuming a frame is received successfully, if it is not signalled as erased.
f) The SS uses a Channel Mode Modify procedure to change the active codec set to 5,15 kbit/s and steps b) to e) are repeated.
Maximum/Minimum Duration of Test
Maximum: 19 minutes (GSM850), 19 minutes (GSM900), 19 minutes (DCS1800), 19 minutes (PCS1900).
Minimum: 6 minutes (GSM850), 6 minutes (GSM900), 3 minutes (DCS1800), 3 minutes (PCS1900).
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683b5b8a98f7b1390ddd5516ea9247a2
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51.010-1
|
14.2.21.5 Test requirements
|
Testing should be performed using statistical methods that lead to an early pass/fail decision with test time significantly reduced for MS with FER/BER not on the limit.
For more information on statistical testing of BER/BLER performance, especially the definition of limit lines refer to Annex 7.
Wrong decision risk F for one single error rate test:
Fpass = Ffail = F and F = 0.2%
Wrong decision probability D per test step:
Dpass = Dfail = D and D = 0.0085%
Parameters for limit lines:
1. D = 0.000085 wrong decision probability per test step.
2. M = 1.5 bad DUT factor
3. ne number of (error) events. This parameter is the x‑ordinate in figure A7.1.3.1.
4. ns number of samples. The error rate is calculated from ne and ns.
Limit checking
Before limit checking is valid the minimum test time due to fading needs to be considered:
Testing under multipath and interference conditions requires that at least 990 wavelengths are crossed with the speed given in the fading profile. This leads to a minimum test time depending on the frequency range. No early pass/fail decision is allowed until the minimum test time due to fading has elapsed.
Table 14.2.21-1: Minimum test times due to HT 100 fading conditions
Half Rate 100 km/h
Frequency
0,85
0,9
1,8
1,9
GHz
Wavelength
0,35
0,33
0,17
0,16
m
min test time
201
190
95
90
s
0:03:21
0:03:10
0:01:35
0:01:30
If the minimum test time due to multipath conditions exceeds the target test time, then the test runs for the minimum test time due to multipath conditions and the decision is made by comparing the result with the “derived test limit”. In this case early pass/fail decisions are obsolete.
If the target test time exceeds the minimum test time due to multipath conditions early pass/fail decisions can be headed for in order to accelerate test execution.
For an early decision a minimum number of (error) events is necessary.
For an early pass decision ne ≥ 1 (inclusive artificial error)
For an early fail decision ne ≥ 7
When the target test time has been reached the test is finished and a pass/fail decision can be made.
The error rate measured in this test shall be tested according to the values given in tables 14.2.21-2 and 14.2.21.3.
Table 14.2.21-2: Statistical test limits for GSM 700, T-GSM 810, GSM 850 and GSM 900 O-TCH/AFS reference sensitivity
HT100 / No FH
0.8 to 0.9GHz
Clev (dBm)
Samples per second
Orig. BER requirement
Derived test limit
Target number of samples
Target test time (s)
Target test time (hh:mm:ss)
AHS 10.2
Frames
-91.5
50
0,010000
0,012340
27958
560
00:09:20
Class1b
6950
0,001900
0,002345
147121
21
00:00:21
AHS 5.15
Frames
-95.0
50
0,010000
0,012340
27958
560
00:09:20
Class1b
2700
0,001100
0,001357
254237
94
00:01:34
Table 14.2.21-3: Statistical test limits for DCS 1 800 and PCS 1 900 O-TCH/AFS reference sensitivity
HT100 / No FH
1.8 to 1.9GHz
Clev (dBm)
Samples per second
Orig. BER requirement
Derived test limit
Target number of samples
Target test time (s)
Target test time (hh:mm:ss)
AHS 10.2
Frames
-91.0
50
0,010000
0,012340
27958
560
00:09:20
Class1b
6950
0,002000
0,002468
139789
20
00:00:20
AHS 5.15
Frames
-95.0
50
0,010000
0,012340
27958
560
00:09:20
Class1b
2700
0,001200
0,001408
232982
86
00:01:26
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.2.22 Reference sensitivity – O-TCH/WFS
| |
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.2.22.1 Definition
|
-
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.2.22.2 Conformance requirement
|
For 8-PSK modulated speech channels for AMR, associated control channels and inband signalling, the minimum input signal level for which the reference performance shall be met is specified in table 1g
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 shall be:
For speech channels (O-TCH/WFSy) FER £ 1%
All other requirements in tables 1f and 1g shall be fulfilled at this input level for reference performance.
Correction values for 8-PSK modulated signals:
for GSM 400, GSM 900, GSM 850, T_GSM 810 and GSM 700 small MS
0 dB
for other GSM 400, GSM 900, GSM 850, T_GSM 810 and GSM 700 MS
-2 dB
for DCS 1 800 and PCS 1900 class 1 or class 2 MS
0 dB
for other DCS 1 800 and PCS 1900 MS
-2 dB
3GPP TS 45.005, subclause 6.2.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.2.22.3 Test purpose
|
To verify that the MS does not exceed conformance requirement for FER and class 1b RBER under HT100 propagation conditions with an allowance for the statistical significance of the test, for channel combinations O-TCH/WFS15.85 and O-TCH/WFS 6.60
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.2.22.4 Method of test
| |
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.2.22.4.1 Initial conditions
|
A call is set up according to the generic call set up procedure on a O-TCH/WFS with an ARFCN in the mid ARFCN range, power control level set to maximum power. RADIO_LINK_TIMEOUT is set to maximum.
The multirate configuration indicates the use of a codec set limited to 15,85 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).
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.2.22.4.2 Procedure
|
a) The fading function is set to HT100.
b) The SS sets the level of the wanted signal to that indicated by Clev in table 14.2.22-2 or 14.2.22-3. The level is corrected by the appropriate value in the table above.
c) The SS compares the data of the signal that it sends to the MS with the signal which is looped back from the receiver after demodulation and decoding, and checks the frame erasure indication.
d) The SS determines the number of residual bit error events for the bits of the class Ib, by examining sequences of at least the minimum number of samples of consecutive bits of class Ib. Bits are only taken from those frames not signalled as erased.
e) The SS also determines the frame erasure events by examining sequences of at least the minimum number of samples of consecutive frames and assuming a frame is received successfully, if it is not signalled as erased.
f) The SS uses a Channel Mode Modify procedure to change the active codec set to 6.60 kbit/s and steps b) to e) are repeated.
Maximum/Minimum Duration of Test
Maximum: 19 minutes (GSM850), 19 minutes (GSM900), 19 minutes (DCS1800), 19 minutes (PCS1900).
Minimum: 6 minutes (GSM850), 6 minutes (GSM900), 3 minutes (DCS1800), 3 minutes (PCS1900).
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.2.22.5 Test requirements
|
Testing should be performed using statistical methods that lead to an early pass/fail decision with test time significantly reduced for MS with FER/BER not on the limit.
For more information on statistical testing of BER/BLER performance, especially the definition of limit lines refer to Annex 7.
Wrong decision risk F for one single error rate test:
Fpass = Ffail = F and F = 0.2%
Wrong decision probability D per test step:
Dpass = Dfail = D and D = 0.0085%
Parameters for limit lines:
1. D = 0.000085 wrong decision probability per test step.
2. M = 1.5 bad DUT factor
3. ne number of (error) events. This parameter is the x‑ordinate in figure A7.1.3.1.
4. ns number of samples. The error rate is calculated from ne and ns.
Limit checking
Before limit checking is valid the minimum test time due to fading needs to be considered:
Testing under multipath and interference conditions requires that at least 990 wavelengths are crossed with the speed given in the fading profile. This leads to a minimum test time depending on the frequency range. No early pass/fail decision is allowed until the minimum test time due to fading has elapsed.
Table 14.2.22-1: Minimum test times due to HT 100 fading conditions
Full Rate 100 km/h
Frequency (GHz)
0,85
0,9
1,8
1,9
Wavelength (m)
0,35
0,33
0,17
0,16
min test time (s)
101
95
48
45
0:01:41
0:01:35
0:00:48
0:00:45
If the minimum test time due to multipath conditions exceeds the target test time, then the test runs for the minimum test time due to multipath conditions and the decision is made by comparing the result with the “derived test limit”. In this case early pass/fail decisions are obsolete.
If the target test time exceeds the minimum test time due to multipath conditions early pass/fail decisions can be headed for in order to accelerate test execution.
For an early decision a minimum number of (error) events is necessary.
For an early pass decision ne ≥ 1 (inclusive artificial error)
For an early fail decision ne ≥ 7
When the target test time has been reached the test is finished and a pass/fail decision can be made.
The error rate measured in this test shall be tested according to the values given in tables 14.2.22-2 and 14.2.22.3
Table 14.2.22-2: Statistical test limits for GSM 700, T-GSM 810, GSM 850 and GSM 900 O-TCH/WFS reference sensitivity
HT100 / No FH
0.8 to 0.9GHz
Clev (dBm)
Samples per second
Orig. BER requirement
Derived test limit
Target number of samples
Target test time (s)
Target test time (hh:mm:ss)
WFS15.85
Frames
-95.0
50
0,010000
0,012340
27958
560
00:09:20
Class1b
12250
0,005000
0.006170
55915
5
00:00:05
WFS 6.60
Frames
-99.5
50
0,010000
0,012340
27958
560
00:09:20
Class1b
3900
0,002700
0.003332
103547
27
00:00:27
Table 14.2.22-3: Statistical test limits for DCS 1 800 and PCS 1 900 O-TCH/WFS reference sensitivity
HT100 / No FH
1.8 to 1.9GHz
Clev (dBm)
Samples per second
Orig. BER requirement
Derived test limit
Target number of samples
Target test time (s)
Target test time (hh:mm:ss)
WFS15.85
Frames
-95.0
50
0,010000
0,012340
27958
560
00:09:20
Class1b
12250
0,006000
0.007404
46596
4
00:00:04
WFS 6.60
Frames
-99.5
50
0,010000
0,012340
27958
560
00:09:20
Class1b
3900
0,003000
0.003702
69894
18
00:00:18
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.2.23 Reference sensitivity – O-TCH/WHS
| |
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
14.2.23.1 Definition
|
-
|
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