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51.010-1
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20.25.6.2 Test purpose
|
To verify that the MS uses the priority information and performs cell re-selection to Low priority UTRAN cell while in Idle Mode.
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683b5b8a98f7b1390ddd5516ea9247a2
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51.010-1
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20.25.6.3 Method of test
|
Initial conditions
Parameter
Cell 1
Cell 2
Carrier1
Carrier2
Channel Type carried
BCCH
BCH
Signal Level (dBm)
-50 to -90
Off to -60
Ec/No (dB)
-
-6dB
NOTE 1: MS is GPRS attached on Cell 1.
NOTE 2: Carrier 1 is the BCCH carrier, NC0.
NOTE 3: Carrier 2 is the UTRAN FDD cell configured according to TS 34.108, clause 6.1.4, Default settings for cell No.1
NOTE 4: Serving Cell Parameters are coded and transmitted on the specified Channel Type
NOTE 5: Carriers should have a relative accuracy of ±3 dB.
NOTE 6: SYSTEM INFORMATION TYPE 2QUATER Instance 1 and Instance 2 as per 20.25.1.
Test procedure
The MS is GPRS attached and has received a 3G Neighbour Cell description in System Information Type 2quater message, along with priority information.
Update the Carrier 1 and Carrier 2, power level as per the initial conditions.
It is verified that a Cell Reselection to UTRAN is performed within 30 sec.
Maximum duration of the test
5 minutes
Expected sequence
Step
Direction
Message
Comments
1
SS
SYSTEM INFORMATION TYPE 2QUATER
See specific contents below.
2
SS
Carrier 2 is activated with Ec/No = -6 (dB) and power level -60(dBm)
Set GSM power level to -90dBm to satisfy S_GSM criteria for low priority reselection evaluation
3
MS -> SS
RRC CONNECTION REQUEST
Verify that the MS reselects to Carrier 2 within 30 secs from Step 2.
Establishment cause shall be “interRAT-CellReselection”
Specific message contents
SYSTEM INFORMATION TYPE 2QUATER in Step 1
Information Element
Value/remark
< MP_CHANGE_MARK : bit (1)>
1
< UTRAN_PRIORITY : bit(3)>
’010’B
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683b5b8a98f7b1390ddd5516ea9247a2
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51.010-1
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20.25.7 Intersystem Cell Reselection / Idle Mode / H_PRIO
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683b5b8a98f7b1390ddd5516ea9247a2
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51.010-1
|
20.25.7.1 Conformance requirement
|
If the 3G Cell Reselection list or the E-UTRAN Neighbour Cell list include frequencies of other radio access technologies, the MS shall, at least every 5 s update the value RLA_C for the serving cell and each of the at least 6 strongest non serving GSM cells.
The MS shall then reselect a suitable (see 3GPP TS 25.304 for UTRAN and 3GPP TS 36.304 for E-UTRAN) cell of another radio access technology if the criteria below are satisfied. S_non-serving_XXX is the measurement quantity of a non-serving inter-RAT cell and XXX indicates the other radio access technology/mode and is defined as follows:
- for a UTRAN cell, is the measured RSCP value for the cell minus UTRAN_QRXLEVMIN for the cell’s frequency;
…
For a GSM cell, S_GSM is defined as the C1 value for the cell (see subclause 6.4);
Cell reselection to a cell of another inter-RAT frequency shall be performed if any of the conditions below (to be evaluated in the order shown) is satisfied:
- The S_non-serving_XXX of one or more cells of a higher priority inter-RAT frequency is greater than THRESH_XXX_high during a time interval T_reselection; in that case, the mobile station shall consider the cells for reselection in decreasing order of priority and, for cells of the same priority, in decreasing order of S_non-serving_XXX, and reselect the first cell that satisfies the conditions above;
- The value of S_GSM is lower than THRESH_GSM_low for the serving cell and all measured GSM cells during a time interval T_reselection; in this case, the mobile station shall consider for reselection the inter-RAT cells in the following order, and reselect the first one that satisfies the following criteria:
- cells of a lower priority inter-RAT frequency whose S_non-serving_XXX is greater than THRESH_XXX_low during a time interval T_reselection; these cells shall be considered in decreasing order of priority and, for cells of the same priority, in decreasing order of S_non-serving_XXX;
- if no cells satisfy the criterion above, inter-RAT cells for which, during a time interval T_reselection, S_non-serving_XXX is higher than S_GSM for the serving cell by at least a specific hysteresis H_PRIO; these cells shall be considered in decreasing order of S_non-serving_XXX.
A UTRAN FDD cell shall only be reselected if, in addition to the criteria above, its measured Ec/No value is equal to or greater than FDD_Qmin - FDD_Qmin_Offset.
References:
3GPP TS 45.008, subclause 6.6.6
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683b5b8a98f7b1390ddd5516ea9247a2
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51.010-1
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20.25.7.2 Test purpose
|
To verify that the MS uses the priority information and performs cell re-selection from GSM to UTRAN, according to hysteresis criteria while in Idle Mode.
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51.010-1
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20.25.7.3 Method of test
|
Initial conditions
Parameter
Cell 1
Cell 2
Carrier1
Carrier2
Channel Type carried
BCCH
BCH
Signal Level (dBm)
-50 to -90
Off to -75
Ec/No (dB)
-
-6dB
NOTE 1: MS is GPRS attached on Cell 1.
NOTE 2: Carrier 1 is the BCCH carrier, NC0.
NOTE 3: Carrier 2 is the UTRAN FDD cell configured according to TS 34.108, clause 6.1.4, Default settings for cell No.1
NOTE 4: Serving Cell Parameters are coded and transmitted on the specified Channel Type
NOTE 5: Carriers should have a relative accuracy of ±3 dB.
NOTE 6: SYSTEM INFORMATION TYPE 2QUATER (REL-8) as per 20.25.1.
Test procedure
The MS is GPRS attached and has received a 3G Neighbour Cell description in System Information Type 2quater message, along with priority information.
Update the Carrier 1 and Carrier 2, power level as per the initial conditions.
It is verified that a Cell Reselection to UTRAN is performed within 30 sec.
Maximum duration of the test
5 minutes
Expected sequence
Step
Direction
Message
Comments
1
SS
SYSTEM INFORMATION TYPE 2QUATER
See specific contents below.
2
SS
Carrier 2 is activated with Ec/No = -6 (dB) and power level -75(dBm)
Set GSM power level to -90dBm to satisfy S_GSM criteria for low priority reselection evaluation
3
MS -> SS
RRC CONNECTION REQUEST
Verify that the MS reselects to Carrier 2 within 30 secs from Step 2.
Establishment cause shall be “interRAT-CellReselection”
Specific message contents
SYSTEM INFORMATION TYPE 2QUATER in Step 1
Information Element
Value/remark
< MP_CHANGE_MARK : bit (1)>
1
< H_PRIO : bit(2) >
’01’B (5dB)
< UTRAN_PRIORITY : bit(3)>
’010’B
< THRESH_UTRAN_high : bit(5)>
’11111’B ( 62dB )
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51.010-1
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20.26 Decoding of BCCH including information for UTRAN TDD cells
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683b5b8a98f7b1390ddd5516ea9247a2
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51.010-1
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20.26.1 Conformance requirement
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When a message is coded using CSN.1 notation, the definition of the CSN.1 syntax in CSN.1 Specification, Version 2.0, shall be used.
Where the description of information elements in this Technical Specification contains bits defined to be "spare bits", these bits shall set to the indicated value (0 or 1) by the sending side, and their value shall be ignored by the receiving side. With few exceptions, spare bits are indicated as being set to "0" in 3GPP TS 44.018.
The following rules apply for the coding of type 4 information elements:
a) The octet number of an octet (which is defined in the figure of a sub-clause) consists of a positive integer, possibly of an additional letter, and possibly of an additional asterisk, see sub-clause f). The positive integer identifies one octet or a group of octets.
b) Each octet group is a self contained entity. The internal structure of an octet group may be defined in alternative ways.
c) An octet group is formed by using some extension mechanism. The preferred extension mechanism is to extend an octet (N) through the next octet(s) (Na, Nb, etc.) by using bit 8 in each octet as an extension bit.
The bit value "0" indicates that the octet group continues through to the next octet. The bit value "1" indicates that this octet is the last octet of the group. If one octet (Nb) is present, the preceding octets (N and Na) shall also be present.
In the format descriptions appearing in sub-clause 10.5.1 to 10.5.4, bit 8 is marked "0/1 ext" if another octet follows. Bit 8 is marked "1 ext" if this is the last octet in the extension domain.
Additional octets may be defined in later versions of the protocols ("1 ext" changed to "0/1 ext") and equipments shall be prepared to receive such additional octets; the contents of these octets shall be ignored. However the length indicated in clauses 9 and 10 only takes into account this version of the protocols.
d) In addition to the extension mechanism defined above, an octet (N) may be extended through the next octet(s) (N+1, N+2 etc.) by indications in bits 7-1 (of octet N).
e) The mechanisms in c) and d) may be combined.
f) Optional octets are marked with asterisks (*).
References:
- 3GPP TS 44.018 sections 10.1, 10.5.
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683b5b8a98f7b1390ddd5516ea9247a2
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51.010-1
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20.26.2 Test purpose
|
To verify that the MS performs correctly when BCCH of suitable cell includes information for UTRAN-TDD cells.
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51.010-1
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20.26.3 Method of test
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683b5b8a98f7b1390ddd5516ea9247a2
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51.010-1
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20.26.3.1 Initial conditions
|
Parameters changed from the default values in table 20.1.
Parameter
Carrier 1
Carrier 2
RF Signal Level
(dBV emf() / dBm)
48 / -65
38 / -75
CBA
0
0
RXLEV_ACCESS_MIN
(dBm)
-90
-67
MNC
MCC
C1
25
-8
C2
25
-8
ATT bit
1
1
MSCR
1
1
For an E-GSM MS carrier 2 is chosen in the E-GSM band, carrier 1 ARFCN in the P-GSM band.
Specific system information messages settings are configured on carriers 1 and 2 as specified in section Specific Message Contents.
NOTE: UTRAN TDD cell needs not to be active.
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683b5b8a98f7b1390ddd5516ea9247a2
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51.010-1
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20.26.3.2 Procedure
|
a) The SS activates the carriers with specific system information settings
b) The MS is switched on.
c) The MS is paged on carrier 1.
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51.010-1
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20.26.4 Test requirements
|
1) After step b), the MS shall perform location update procedure on carrier 1 within 60 seconds..
2) After step c), MS shall respond to paging.
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51.010-1
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20.26.5 Specific Message Contents
|
SYSTEM INFORMATION TYPE 3 REST OCTETS
• SI2q indicated on BCCH Norm
SYSTEM INFORMATION TYPE 2QUATER
Information Element
Value/remark
< RR management Protocol Discriminator bit (4) >
‘0110'B
< Skip Indicator : bit (4) >
‘0000'B
< Message type : bit (8) >
‘0000 0111’B
< SI2 quarter Rest Octets >
< BA_IND : bit >
0
< 3G_BA_IND : bit >
0
< MP_CHANGE_MARK : bit >
0
< SI2quater _INDEX : bit (4) >
‘0000’B
< SI2quater_COUNT : bit (4) >
‘0000’B
0 | 1 < Measurement_Parameters Description >
0
0 | 1 < GPRS_Real Time Difference Description >
0
0 | 1 < GPSR_BSIC Description >
0
0 | 1 < GPRS_REPORT PRIORITY Description >
0
0 | 1 < GPRS_Measurement_Parameters Description >
0
0 | 1 < NC Measurement Parameters >
0
0 | 1 < extension length >
0
0 | 1 < 3G Neighbour Cell Description >
1
0 | 1 < Index_Start_3G : bit (7) >
0
0 | 1 < Absolute_Index_Start_EMR : bit (7) >
0
0 | 1 < UTRAN FDD Description >
0
0 | 1 < UTRAN TDD Description >
1
0 | 1 < Bandwidth_TDD : bit (3) >
1
1 < Repeated UTRAN TDD Neighbour Cells > ** 0
1
0 < TDD-ARFCN : bit (14) >
‘2760’B
< TDD_Indic0 : bit >
1
< NR_OF_TDD_CELLS : bit (5) >
‘0001’B
< TDD_CELL_INFORMATION Field >
9 bits
Cell parameters ID according to TS 34.108, clause 6.1.4, Default settings for cell No.1
1 < Repeated UTRAN TDD Neighbour Cells > ** 0
0
0 | 1 < 3G MEASUREMENT Parameters Description >
1
< Qsearch_I : bit (4) >
‘0111’B (Always)
< Qsearch_C_Initial : bit (1) >
0
0 | 1 < TDD_Qoffset : bit (4) >
1 ‘0000’B (Always select a cell if acceptable)
< TDD_MULTIRAT_REPORTING : bit (2) >
‘01’B
< Qsearch_P : bit (4) >
‘0111’B (Always)
< 3G_SEARCH_PRIO : bit >
0
0 | 1 < FDD_REP_QUANT : bit >
0
0 | 1 < FDD_REPORTING_OFFSET : bit (3) >
0
0 | 1 < TDD_MULTIRAT_REPORTING : bit (2) >
0
0 | 1 < TDD_REPORTING_OFFSET : bit (3) >
0
21 Received signal measurements
For evaluating the reception quality (the basis for handover and power control) the following two criteria are used:
- signal strength (RXLEV);
- signal quality (RXQUAL).
Unless otherwise specified all tests in clauses 21.1 to 21.4 are applicable for all MSs supporting the bands referred to in clause 1.
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51.010-1
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21.1 Signal strength
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683b5b8a98f7b1390ddd5516ea9247a2
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51.010-1
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21.1.1 Definition
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The MS reports RXLEV values related to the apparent received RF signal strength. It is necessary for these levels to attain sufficient accuracy for the correct functioning of the system.
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51.010-1
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21.1.2 Conformance requirement
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1. The RMS received signal level at the receiver input shall be measured by the MS over the full range of ‑110 dBm to ‑48 dBm with a relative accuracy between signals with levels up to 20 dB difference according to table 21‑1
1.1 under normal conditions, 3GPP TS 05.08, subclause 8.1.2 and 3GPP TS 05.05, subclause 6.2.
1.2 under extreme conditions, 3GPP TS 05.08, subclause 8.1.2, 3GPP TS 05.05, subclauses D.1 and D.2.
Table 21-1: Tolerance for relative accuracy of receive signal measurement
Absolute level of lower level signal
dBm
Tolerance
dB
GSM
Small MS
GSM
Other MS
DCS 1800
Class 1&2
DCS 1800
Class 3
PCS 1900
Class 1&2
PCS 1900
Other MS
Lower limit
Single Multi
Upper limit
Single Multi
-88
-101
< -101
-90
-103
< -103
-86
-99
< -99
-88
-101
< -101
-88
-101
< -101
-90
-103
< -103
2 4
3 5
4 6
2 4
2 5
2 6
Single means that the measurements are on the same or different RF channel within the same frequency band.
Multi means that the measurements are on different RF channel on different frequency bands.
For measurements between ARFCN in different bands the 'Absolute level of lower level signal' column for the band including the lower level signal shall be used to determine which tolerance applies.
At extreme temperature conditions an extra 2 dB shall be added to the Multi limits in above table.
2. The RMS received signal level at the receiver input shall be measured with an absolute accuracy of ±4 dB from ‑110 dBm to ‑70 dBm under normal conditions; 3GPP TS 05.08, subclause 8.1.2.
3. The RMS received signal level at the receiver input shall be measured with an absolute accuracy of ±6 dB over the full range of ‑110 dBm to ‑48 dBm under both normal and extreme conditions; 3GPP TS 05.08, subclause 8.1.2.
4. If the received signal level falls below the reference sensitivity level for the type of MS then the MS shall report a level between the reference sensitivity level and the actual received level, but with the tolerances given in conformance requirements 2. and 3. above.
5. The measured signal level shall be mapped to an RXLEV value between 0 and 63 as specified in 3GPP TS 05.08, subclause 8.1.4.
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683b5b8a98f7b1390ddd5516ea9247a2
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51.010-1
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21.1.3 Test purpose
|
1. To verify that the RXLEV (or RXLEV_SERVING_CELL) / RXLEV_N reported by the MS does not exceed conformance requirement 1.
1.1 under normal conditions;
1.2 under extreme conditions.
2. To verify that the RXLEV (or RXLEV_SERVING_CELL) / RXLEV_N reported by the MS does not exceed conformance requirement 2 under normal conditions.
3. To verify that the RXLEV (or RXLEV_SERVING_CELL) / RXLEV_N reported by the MS does not exceed conformance requirement 3 under extreme conditions and under normal conditions from ‑48 dBm to ‑70 dBm.
4. To verify that the RXLEV (or RXLEV_SERVING_CELL) / RXLEV_N reported by the MS does not exceed conformance requirement 4.
NOTE: Conformance requirement 5 is inherently tested in each of the test purposes 1. to 4.
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51.010-1
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21.1.4 Method of test
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683b5b8a98f7b1390ddd5516ea9247a2
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51.010-1
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21.1.4.1 Initial conditions
|
The SS is set to produce the BCCH of the serving cell at 63 dBVemf( ) and the BCCHs of 6 surrounding cells at 28 dBVemf( ). The BCCH of the serving cell indicates these BCCHs, but not the BCCH of the serving cell. The ARFCN of the serving cell BCCH is chosen so as not to interfere with the other channels as shown in table 21-2. The fading profile for the BCCHs of the serving and surrounding cells will be set to static.
For circuit switch capable devices, after 30 s, a call is set up according to the generic call set up procedure to an ARFCN, within the supported band of operation. The SACCH indicates the same surrounding cell BCCHs as the BCCH of the serving cell.
For GPRS only devices, the Ready Timer (T3314) is indicated as disabled in the GMM ATTACH ACCEPT message. After 30s, a GPRS mode RLC unacknowledged mode downlink TBF is established on a single slot. Following TBF establishment, the SS transmits a PACKET MEASUREMENT ORDER message on downlink PACCH addressing the MS which sets the NETWORK_CONTROL_ORDER to ‘1’ and indicates the value NC_REPORTING_PERIOD_T = 0.480ms. The PACKET MEASUREMENT ORDER does not modify the broadcast allocation list as indicated on the BCCH of the serving cell. Throughout the downlink TBF, the SS transmits two consecutive downlink RLC data blocks to the MS with the S/P bit set to ‘1’ in the RLC/MAC header at least twice every 480ms. The PDTCH level is reported by the MS via the RXLEV_SERVING_CELL parameter and the neighbour cell BCCH levels are reported by the MS via the RXLEV_N parameters in the PACKET MEASUREMENT REPORT messages received on uplink PACCH.
NOTE: The 30 s is to allow the MS to scan and find all BCCHs.
Specific PICS statements:
- MS supporting packet switched services only (TSPC_operation_mode_C)
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683b5b8a98f7b1390ddd5516ea9247a2
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51.010-1
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21.1.4.2 Procedure
|
a) The levels of the TCH / PDTCH and BCCHs are set according to table 21-2 step 1. The SS waits 20 s before continuing.
Table 21-2: Signal levels at receiver input in dBVemf( )
ARFCN
TCH / PDTCH
BCCH1
BCCH2
BCCH3
BCCH4
BCCH5
BCCH6
Step
GSM 450
259
276
293
264
269
281
288
GSM 480
306
323
340
311
316
328
335
GSM 900:
1
62
124
20
40
80
100
DCS 1 800
512
700
885
585
660
790
835
PCS 1 900
512
700
805
585
660
790
550
450/900
259
124
276
293
269
288
1
480/900
306
124
323
340
316
335
1
450/1 800
259
885
276
293
269
288
512
480/1 800
306
885
323
340
316
335
512
900/1 800
1
885
62
124
40
100
512
450/900/1 800
259
124
276
885
293
1
512
480/900/1 800
306
124
323
885
340
1
512
GSM 850
128
189
251
150
170
210
230
GSM 710
438
475
511
440
455
485
500
T-GSM 810
438
475
511
440
455
485
500
GSM 750
438
475
511
440
455
485
500
750/850
438
251
475
511
455
485
128
1 + m 21
64,5 - m 10
64,5 - m 10
64,5 - m 10
64,5 - m 10
64,5 - m 10
64,5 - m 10
64,5 - m 10
2 + m 21
54,5 - m 10
63,5 - m 10
54,5 - m 10
54,5 - m 10
54,5 - m 10
54,5 - m 10
54,5 - m 10
3 + m 21
54,5 - m 10
62,5 - m 10
44,5 - m 10
44,5 - m 10
44,5 - m 10
44,5 - m 10
44,5 - m 10
.
.
.
.
.
.
44,5 - m 10
44,5 - m 10
17 + m 21
54,5 - m 10
.
.
.
.
44,5 - m 10
44,5 - m 10
18 + m 21
44,5 -m 10
.
.
.
.
44,5 - m 10
44,5 - m 10
.
.
.
.
.
.
44,5 - m 10
44,5 - m 10
21 + m 21
44,5 - m 10
44,5 - m 10
44,5 - m 10
44,5 - m 10
44,5 - m 10
44,5 - m 10
44,5 - m 10
m = 0, 1, 2, 3, 4.
b) The measurement is done in 105 steps. The initial signal levels of the TCH / PDTCH of the serving cell and the BCCHs of the surrounding cells are adjusted according to table 21-2. At each step the SS keeps the signal levels stable for one reporting period, except at steps 21 + m 21 where the level is held stable for 1,75 reporting periods. The RXLEV value for the period in which the change occurs (reported in the following period) is discarded. The SS records the RXLEV values reported for the surrounding cell BCCHs in steps 1 + m 21 and 21 + m 21. The RXLEV values for BCCH 1 are recorded by the SS for all 105 steps.
NOTE: This extension at steps 21 + m 21 is to allow an extra quarter reporting period for the MS to stabilize for steps 1 + m 21.
For circuit switched speech calls at steps 1 to 30 the SS simulates a base station with DTX off and at steps 31 to 105 the SS simulates a base station with DTX on. At step 64, within every 480 ms reporting period, out of the 4 SACCH and 8 SID timeslots the SS transmits the first six active timeslots of the TCH with signal level 39,5 dBVemf( ) and the last six active timeslots of the TCH with signal level 29,5 dBVemf( ). At steps 1 to 30 the SS checks the accuracy of the measured signal strength of TCH by checking the values of the parameters RXLEV_FULL and RXLEV_SUB. At steps 31 to 105 the SS shall check only the value of the parameter RXLEV_SUB.
For circuit switched data calls and signalling only connection the SS simulates a base station with DTX off for step 1 to 105. At steps 1 to 105 the SS checks the accuracy of the measured signal strength of TCH by checking the values of the parameters RXLEV_FULL and RXLEV_SUB.
For GPRS only devices at steps 1 to 105 the SS checks the accuracy of the measured signal strength of the PDTCH by checking the value of the parameter RXLEV_SERVING_CELL received in the PACKET MEASUREMENT REPORT messages from the MS.
c) Step b) is repeated under extreme conditions (annex 1, TC2,2 and TC3).
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683b5b8a98f7b1390ddd5516ea9247a2
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51.010-1
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21.1.5 Test requirements
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683b5b8a98f7b1390ddd5516ea9247a2
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51.010-1
|
21.1.5.1 Relative accuracy of measurements on different ARFCN
|
For normal and each of the 4 extreme conditions tested the following applies:
a) For each of the steps 1, 21, 22, 42, 43 and 64, of the 7 reported RXLEV (or RXLEV_SERVING_CELL) / RXLEV_N values checked, the difference between the minimum reported RXLEV (or RXLEV_SERVING_CELL) / RXLEV_N value and the maximum reported RXLEV (or RXLEV_SERVING_CELL) / RXLEV_N value shall be no more than 4 if the measurements are on the same or on different RF channel within the same frequency band and no more than 8 (12 for extreme temperature conditions) if the measurements are on different frequency bands.
b) For each of the steps 63 and 85, of the 7 reported RXLEV (or RXLEV_SERVING_CELL) / RXLEV_N values checked, the difference between the minimum reported RXLEV value and the maximum reported RXLEV (or RXLEV_SERVING_CELL) / RXLEV_N value shall be no more than 5 for small MS, DCS 1 800 and PCS 1 900 (Class 1 and 2) MS or 4 for other MS if the measurements are on the same or on different RF channel within the same frequency band and no more than 9 for small MS, DCS 1 800 and PCS 1 900 (Class 1 and 2) MS or 8 for other MS and other PCS 1 900 MS (13 and 12 for extreme temperature conditions) if the measurements are on different frequency bands.
c) For step 84, of the 7 reported RXLEV (or RXLEV_SERVING_CELL) / RXLEV_N values checked, the difference between the minimum reported RXLEV value and the maximum reported RXLEV (or RXLEV_SERVING_CELL) / RXLEV_N value shall be no more than 5 if the measurements are on the same or on different RF channel within the same frequency band and no more than 9 (13 for extreme temperature conditions) if the measurements are on different frequency bands.
d) For step 105, of the reported RXLEV (or RXLEV_SERVING_CELL) / RXLEV_N values checked, the difference between the minimum reported RXLEV value and the maximum reported RXLEV value shall be no more than 6 if the measurements are on the same or on different RF channel within the same frequency band and no more than 10 (14 for extreme temperature conditions) if the measurements are on different frequency bands.
NOTE: It is not mandatory for the MS to report any of the BCCHs in step 105.
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21.1.5.2 Relative accuracy at a single frequency (BCCH1)
|
For normal and each of the 4 extreme conditions tested the following applies:
For: n <= 21 and RXLEV1 / RXLEV_N1 = 63
RXLEVn / RXLEV_N1 - (63 - n + r) shall be between:
‑2 and +2
NOTE 1: This formula allows for an MS with an absolute accuracy worse than +0,5 dB and therefore reporting an RXLEV / RXLEV_N of 63 for more than one step. The formula checks the relative accuracy from the lowest input level for which the MS last reports RXLEV / RXLEV_N of 63.
Otherwise:
RXLEV (m*21+1) / RXLEV_N(m*21+1) - RXLEV (m*21+n) / RXLEV_N(m*21+n)- n + 1 shall be between:
‑2 and +2
for steps 2 to 62 and 65 to 71 for DCS 1 800 class 1/2 MS; or steps 2 to 62 and 65 to 73 for DCS 1 800 class 3, PCS 1 900 (Class 1&2) and Small GSM MS; or 2 to 75 for other MS and other PCS 1 900 MS.
‑3 and +2
for steps 63 and 72 to 96 for DCS 1 800 class 1/2 MS; or steps 63 and 74 to 98 for DCS 1 800 class 3, PCS 1 900 (Class 1 and 2) and Small GSM MS; or
76 to 100 for other MS and other PCS 1 900 MS.
‑4 and +2
for steps 97 to 105 for DCS 1 800 class 1/2 MS; or steps 99 to 105 for DCS 1 800 class 3, PCS 1 900 (Class 1 and 2) and Small GSM MS; or 101 to 105 for other MS and other PCS 1 900 MS.
where: 1 < n 21 and 0 m 4 as identified in table 21‑2, and r is the number of the last step where RXLEV / RXLEV_N of 63 was reported.
NOTE 2: It is not mandatory for the MS to report BCCH1 for steps greater than 99 for GSM 400, GSM 700, GSM 850, T_GSM 810 or GSM 900 Small MS or 101 for other GSM and other PCS 1 900 MS or 97 for a DCS 1 800 Class 1 or Class 2 MS and 99 for DCS 1 800 Class 3 and PCS 1 900 (Class 1 and 2) MS. If the MS reports a level and the upper limit for this step in the above formula implies a level below the reference sensitivity level for the type of MS, then the upper limit shall be considered as equal to a value corresponding to the reference sensitivity level.
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21.1.5.3 Absolute accuracy
|
For each BCCH reported, |RXLEVMS + m 10 - 62|/ |RXLEV_NMS + m 10 - 62| shall be no more than:
4 for steps 64 and 85 under normal conditions.
6 for steps 64 and 85 under extreme conditions.
6 for steps 1, 22 and 43 under normal and extreme conditions.
where: 0 m 4 as identified in table 21‑2.
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21.2 Signal strength selectivity
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21.2.1 Definition
|
The signal strength selectivity is a measure of the ability of the signal strength measuring part of the MS to discriminate against RF power from adjacent ARFCN. The RXLEV selectivity figure corresponds to the amount by which the adjacent channel power shall be attenuated.
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21.2.2 Conformance requirement
|
The selectivity of the received signal measurement shall be as follows:
- for adjacent (200 kHz) channel; 16 dB;
- for adjacent (400 kHz) channel; 48 dB;
- for adjacent (600 kHz) channel; 56 dB.
3GPP TS 05.08, subclause 8.1.2.
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21.2.3 Test purpose
|
To verify that the MS meets the conformance requirement at the 200 kHz adjacent channel above and below the wanted.
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21.2.4 Method of test
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21.2.4.1 Initial conditions
|
For GSM 450:
For circuit switch capable devices, a call is set up according to the generic call set up procedure on ARFCN 269 and with surrounding cell BCCH3 indicated in the BA list at ARFCN 281.
For GPRS only devices, the Ready Timer (T3314) is indicated as disabled in the GMM ATTACH ACCEPT message. A GPRS mode RLC unacknowledged mode downlink TBF is established on a single slot on ARFCN 269. Following TBF establishment, the SS transmits a PACKET MEASUREMENT ORDER message on downlink PACCH addressing the MS which sets the NETWORK_CONTROL_ORDER to ‘1’ and indicates the value NC_REPORTING_PERIOD_T = 0.480ms. The PACKET MEASUREMENT ORDER does not modify the broadcast allocation list as indicated on the BCCH of the serving cell in which BCCH3 is indicated at ARFCN 281. Throughout the downlink TBF, the SS transmits two consecutive downlink RLC data blocks to the MS with the S/P bit set to ‘1’ in the RLC/MAC header at least twice every 480ms. The PDTCH level is reported by the MS via the RXLEV_SERVING_CELL parameter and the neighbour cell BCCH levels are reported by the MS via the RXLEV_N parameters in the PACKET MEASUREMENT REPORT messages received on uplink PACCH.
The RF level of the TCH / PDTCH and BCCH3 is set to 20 dB above reference sensitivity level.
BCCH1 and 2 at ARFCN 270 and 280 are off.
These conditions are kept for 30 s to ensure the MS has time to decode the BCCH.
For GSM 480:
For circuit switch capable devices, a call is set up according to the generic call set up procedure on ARFCN 316 and with surrounding cell BCCH3 indicated in the BA list at ARFCN 328.
For GPRS only devices, the Ready Timer (T3314) is indicated as disabled in the GMM ATTACH ACCEPT message. A GPRS mode RLC unacknowledged mode downlink TBF is established on a single slot on ARFCN 316. Following TBF establishment, the SS transmits a PACKET MEASUREMENT ORDER message on downlink PACCH addressing the MS which sets the NETWORK_CONTROL_ORDER to ‘1’ and indicates the value NC_REPORTING_PERIOD_T = 0.480ms. The PACKET MEASUREMENT ORDER does not modify the broadcast allocation list as indicated on the BCCH of the serving cell in which BCCH3 is indicated at ARFCN 328. Throughout the downlink TBF, the SS transmits two consecutive downlink RLC data blocks to the MS with the S/P bit set to ‘1’ in the RLC/MAC header at least twice every 480ms. The PDTCH level is reported by the MS via the RXLEV_SERVING_CELL parameter and the neighbour cell BCCH levels are reported by the MS via the RXLEV_N parameters in the PACKET MEASUREMENT REPORT messages received on uplink PACCH.
The RF level of the TCH / PDTCH and BCCH3 is set to 20 dB above reference sensitivity level.
BCCH1 and 2 at ARFCN 317 and 327 are off.
These conditions are kept for 30 s to ensure the MS has time to decode the BCCH.
For GSM 710, GSM 750, T-GSM 810:
For circuit switch capable devices, a call is set up according to the generic call set up procedure on ARFCN 450 and with surrounding cell BCCH3 indicated in the BA list at ARFCN 485.
For GPRS only devices, the Ready Timer (T3314) is indicated as disabled in the GMM ATTACH ACCEPT message. A GPRS mode RLC unacknowledged mode downlink TBF is established on a single slot on ARFCN 450. Following TBF establishment, the SS transmits a PACKET MEASUREMENT ORDER message on downlink PACCH addressing the MS which sets the NETWORK_CONTROL_ORDER to ‘1’ and indicates the value NC_REPORTING_PERIOD_T = 0.480ms. The PACKET MEASUREMENT ORDER does not modify the broadcast allocation list as indicated on the BCCH of the serving cell in which BCCH3 is indicated at ARFCN 485. Throughout the downlink TBF, the SS transmits two consecutive downlink RLC data blocks to the MS with the S/P bit set to ‘1’ in the RLC/MAC header at least twice every 480ms. The PDTCH level is reported by the MS via the RXLEV_SERVING_CELL parameter and the neighbour cell BCCH levels are reported by the MS via the RXLEV_N parameters in the PACKET MEASUREMENT REPORT messages received on uplink PACCH.
The RF level of the TCH / PDTCH and BCCH3 is set to 20 dB above reference sensitivity level.
BCCH1 and 2 at ARFCN 451 and 484 are off.
These conditions are kept for 30 s to ensure the MS has time to decode the BCCH.
For GSM 850:
For circuit switch capable devices, a call is set up according to the generic call set up procedure on ARFCN 170 and with surrounding cell BCCH3 indicated in the BA list at ARFCN 210.
For GPRS only devices, the Ready Timer (T3314) is indicated as disabled in the GMM ATTACH ACCEPT message. A GPRS mode RLC unacknowledged mode downlink TBF is established on a single slot on ARFCN 170. Following TBF establishment, the SS transmits a PACKET MEASUREMENT ORDER message on downlink PACCH addressing the MS which sets the NETWORK_CONTROL_ORDER to ‘1’ and indicates the value NC_REPORTING_PERIOD_T = 0.480ms. The PACKET MEASUREMENT ORDER does not modify the broadcast allocation list as indicated on the BCCH of the serving cell in which BCCH3 is indicated at ARFCN 210. Throughout the downlink TBF, the SS transmits two consecutive downlink RLC data blocks to the MS with the S/P bit set to ‘1’ in the RLC/MAC header at least twice every 480ms. The PDTCH level is reported by the MS via the RXLEV_SERVING_CELL parameter and the neighbour cell BCCH levels are reported by the MS via the RXLEV_N parameters in the PACKET MEASUREMENT REPORT messages received on uplink PACCH.
The RF level of the TCH/ PDTCH and BCCH3 is set to 20 dB above reference sensitivity level.
BCCH1 and 2 at ARFCN 171 and 209 are off.
These conditions are kept for 30 s to ensure the MS has time to decode the BCCH.
For GSM 900:
For circuit switch capable devices, a call is set up according to the generic call set up procedure on ARFCN 40 and with surrounding cell BCCH3 indicated in the BA list at ARFCN 80.
For GPRS only devices, the Ready Timer (T3314) is indicated as disabled in the GMM ATTACH ACCEPT message. A GPRS mode RLC unacknowledged mode downlink TBF is established on a single slot on ARFCN 40. Following TBF establishment, the SS transmits a PACKET MEASUREMENT ORDER message on downlink PACCH addressing the MS which sets the NETWORK_CONTROL_ORDER to ‘1’ and indicates the value NC_REPORTING_PERIOD_T = 0.480ms. The PACKET MEASUREMENT ORDER does not modify the broadcast allocation list as indicated on the BCCH of the serving cell in which BCCH3 is indicated at ARFCN 80. Throughout the downlink TBF, the SS transmits two consecutive downlink RLC data blocks to the MS with the S/P bit set to ‘1’ in the RLC/MAC header at least twice every 480ms. The PDTCH level is reported by the MS via the RXLEV_SERVING_CELL parameter and the neighbour cell BCCH levels are reported by the MS via the RXLEV_N parameters in the PACKET MEASUREMENT REPORT messages received on uplink PACCH.
The RF level of the TCH/ PDTCH and BCCH3 is set to 20 dB above reference sensitivity level.
BCCH1 and 2 at ARFCN 41 and 79 are off.
These conditions are kept for 30 s to ensure the MS has time to decode the BCCH.
For DCS 1 800 and PCS 1 900:
For circuit switch capable devices, a call is set up according to the generic call set up procedure on ARFCN 690 and with surrounding cell BCCH3 indicated in the BA list at ARFCN 790.
For GPRS only devices, the Ready Timer (T3314) is indicated as disabled in the GMM ATTACH ACCEPT message. A GPRS mode RLC unacknowledged mode downlink TBF is established on a single slot on ARFCN 690. Following TBF establishment, the SS transmits a PACKET MEASUREMENT ORDER message on downlink PACCH addressing the MS which sets the NETWORK_CONTROL_ORDER to ‘1’ and indicates the value NC_REPORTING_PERIOD_T = 0.480ms. The PACKET MEASUREMENT ORDER does not modify the broadcast allocation list as indicated on the BCCH of the serving cell in which BCCH3 is indicated at ARFCN 790. Throughout the downlink TBF, the SS transmits two consecutive downlink RLC data blocks to the MS with the S/P bit set to ‘1’ in the RLC/MAC header at least twice every 480ms. The PDTCH level is reported by the MS via the RXLEV_SERVING_CELL parameter and the neighbour cell BCCH levels are reported by the MS via the RXLEV_N parameters in the PACKET MEASUREMENT REPORT messages received on uplink PACCH.
The RF level of the TCH/ PDTCH and BCCH3 is set to 20 dB above reference sensitivity level.
BCCH1 and 2 at ARFCN 691 and 789 are off.
These conditions are kept for 30 s to ensure the MS has time to decode the BCCH.
Specific PICS statements:
- MS supporting packet switched services only (TSPC_operation_mode_C)
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21.2.4.2 Procedure
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a) The SS records the RXLEV (or RXLEV_SERVING_CELL) / RXLEV_N values reported for the TCH / PDTCH and BCCH3
b) BCCH1 and 2 are set to 9 dB above the signal level of the TCH / PDTCH and BCCH3
NOTE: The first adjacent channel interference requirement limits the level of BCCHs 1 and 2 to 9 dB. This ensures that the MS can maintain the call, and read BCCH3.
c) These conditions are kept for 30 s.
d) The SS records the RXLEV (or RXLEV_SERVING_CELL) / RXLEV_N values reported for the TCH / PDTCH and BCCH3.
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21.2.5 Test requirements
|
The values of RXLEV (or RXLEV_SERVING_CELL) / RXLEV_N recorded in step d) shall be no more than 1 above the values recorded in step a).
NOTE: This one change in the reported value of RXLEV (or RXLEV_SERVING_CELL) / RXLEV_N is calculated as follows: The level of the first adjacent interfering signal is such that C/I is -9 dB. With an RXLEV selectivity for the first adjacent channel of 16 dB, the power from the adjacent channel is equal to -7 dB with respect to the power level of the useful signal. The increase in power therefore is equal to 10log(1 + 10-0,7) = 0,71 dB. Thus, the value of RXLEV (or RXLEV_SERVING_CELL) / RXLEV_N could increase by 1.
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21.3 Signal quality under static conditions
|
In order to have a testing performance corresponding to that in clause 14 for high error rates, the multiplication factor of the tested error rate with respect to the specified error rate have been increased. The following figures have been used (static propagation conditions):
Specified error rate
Multiplication factor
min. Max-events
25 %
1,22
200
30 - 40 %
1,15
300
> 40 %
1,1
400
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21.3.1 Signal quality under static conditions - TCH/FS no DTX
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21.3.1.1 Definition
|
The MS must be capable of measuring the received signal quality, which is specified in terms of bit error ratio (BER) before channel decoding averaged over the reporting period of length of one SACCH multiframe defined in subclause 8.4 of 3GPP TS 05.08. The MS has to map this BER into RXQUAL values using the coding scheme defined in subclause 8.2.4 of 3GPP TS 05.08. The error assessment is based on 104 TDMA frames: RXQUAL_FULL.
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21.3.1.2 Conformance requirement
|
1. The received signal quality shall be measured by the MS in a manner that can be related to an equivalent average BER before channel decoding (i.e. chip error ratio), assessed over the reporting period of one SACCH multiframe. When the quality is assessed over the full-set of frames, eight levels of RXQUAL are defined and shall be mapped to the equivalent BER before channel decoding as per the table in 3GPP TS 05.08, subclauses 8.2.2 and 8.2.4.
2. The reported parameters (RXQUAL) shall be the received signal quality, averaged over the reporting period of length one SACCH multiframe; 3GPP TS 05.08, subclause 8.2.3.
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21.3.1.3 Test purpose
|
1. To verify, under static propagation conditions, that the received signal quality is measured and mapped to the eight levels of RXQUAL_FULL by the MS in a manner that can be related to an equivalent average BER before channel decoding (i.e. chip error ratio), assessed over the reporting period of one SACCH multiframe. The probability that the correct RXQUAL band is reported shall meet the values given in as per the table in 3GPP TS 05.08, subclause 8.2.4.
2. To verify that the reported parameters (RXQUAL) are the received signal quality, averaged over the reporting period of length one SACCH multiframe.
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21.3.1.4 Method of test
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21.3.1.4.1 Initial conditions
|
A call is set up by the SS according to the generic call set up procedure on a full rate speech channel in the mid ARFCN range. The RADIO_LINK_TIMEOUT parameter value is set to maximum.
Specific PICS Statements:
-
PIXIT Statements:
- Loop C delay Full rate
The SS commands the MS to establish the TCH burst-by-burst loop (C), see subclause 36.
The SS produces a wanted signal and an independent uncorrelated interfering (unwanted) signal, both with static propagation characteristics. The wanted signal is the standard test signal C1. It is at the nominal frequency of the receiver and its level is 28 dBVemf(-85 dBm). The unwanted signal is the standard test signal I1, on the same timeslot on a nominal frequency 200 kHz above the nominal frequency of the wanted signal.
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21.3.1.4.2 Procedure
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a) The SS sets the level of the unwanted signal at a value for which the BER of the looped back bursts, averaged over the reporting period as defined in 3GPP TS 05.08, subclause 8.4 is covered by one of the cases 1 to 13 of table 21.3.1.5.
b) The SS verifies that the MS reports RXQUAL and whether or not the reported level is correct by comparison with the RXQUAL level of the corresponding looped back bursts. The SS increases a sample counter(i), and then an event counter(i) for each incorrect MS reported RXQUAL level, where i corresponds to the case determined by the BER of the looped back bursts (table 21.3.1.5). The SS shall take 10 samples.
c) If the previous RXQUAL_n >= 6 the SS shall set the unwanted signal to a level that ensures SACCH bursts will be successfully received by the MS. The SS shall wait 7 SACCH multiframe periods. The SS shall reapply the unwanted signal, then wait 1 SACCH multiframe period *2
d) The SS shall increase the level of the unwanted signal in small steps*1, after each level change repeating steps (b) and (c) until case 14 is reached.
e) The SS shall decrease the level of the unwanted signal in small steps*1, after each level change repeating step (b) and (c) until case 0 is reached.
f) Steps b) through e) should be repeated until the total number of samples, sumi=0..14(sample counter(i)) is a minimum of 3300 (minimum total events(200)/minimum test limit(0.061)).
g) The SS removes the unwanted signal and releases the call.
*1 NOTE: It is intended that the small steps are ~0.2dB, however the accuracy and linearity of these steps is inconsequential to the outcome of the test. It is intended that the test will be performed over a range of C/I which are representative of the normal operational range of the MS.
*2 NOTE: This special case for poor RF conditions is intended to ensure that the RADIO_LINK_TIMEOUT does not expire. The values have been selected to guarantee a net SACCH/T FER less than 62% (effective limit before failure ~67%).
*3NOTE: When testing RXQUAL_SUB , on a full rate speech channel, the MS has approximately twice as many bits as the SS to assess BER. The MS has both SID and SACCH bits, whereas the SS only has the looped back SID bits. Therefore it is only tested that the MS uses the correct frames for RXQUAL_SUB reporting by checking both RXQUAL_SUB and RXQUAL_FULL reports. No quantitative assessment is done.
Maximum Duration of Test
40 minutes.
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21.3.1.5 Test requirements
|
The sets of test results for sample counter (i) and event counter (i) should be combined as follows.
sum i=0..14 ((event counter i * 100) / test limit i)
-----------------------------------------------------------
sum i=0..14 (sample counter i)
A result of <1 is a pass, >=1 is a fail
Table 21.3.1.5: Test criteria and limits for RXQUAL_FULL errors for TCH/FS
Case
(i)
BER estimated by MS/SS (all applicable bursts)
(%)
Expected
RXQUAL
(RXQUAL_)
Test limit
DTX Off
(%)
0
<0.1
0
12.2
1
>=0.1, <0.26
0, 1
30.5
2
>=0.26, <0.3
1
30.5
3
>=0.3, <0.51
1, 2
30.5
4
>=0.51, <0.64
2
18.3
5
>=0.64, <1.0
2,3
18.3
6
>=1.0, <1.3
3
12.2
7
>=1.3, <1.9
3, 4
12.2
8
>=1.9, <2.7
4
12.2
9
>=2.7, <3.8
4, 5
12.2
10
>=3.8, <5.4
5
6.1
11
>=5.4, <7.6
5, 6
6.1
12
>=7.6, <11.0
6
6.1
13
>=11.0, <15.0
6, 7
6.1
14
>=15.0
7
6.1
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21.3.2 Signal quality under static conditions - TCH/HS
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51.010-1
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21.3.2.1 Definition
|
The MS shall be capable of measuring the received signal quality, which is specified in terms of bit error ratio (BER) before channel decoding averaged over the reporting period of length of one SACCH multiframe defined in subclause 8.4 of 3GPP TS 05.08. The MS shall map this BER into RXQUAL values using the coding scheme defined in subclause 8.2.4 of 3GPP TS 05.08. For the half rate channel without downlink DTX, the error assessment is based on 52 TDMA frames: RXQUAL_FULL. In case downlink DTX is used, the assessment is based on 12 TDMA frames: RXQUAL_SUB.
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21.3.2.2 Conformance requirement
|
1. The received signal quality shall be measured by the MS in a manner that can be related to an equivalent average BER before channel decoding (i.e. chip error ratio), assessed over the reporting period of one SACCH multiframe. When the quality is assessed over the full-set and sub-set of frames, eight levels of RXQUAL are defined and shall be mapped to the equivalent BER before channel decoding as per the table in 3GPP TS 05.08, subclauses 8.2.2 and 8.2.4.
2. The reported parameters (RXQUAL) shall be the received signal quality, averaged over the reporting period of length one SACCH multiframe; 3GPP TS 05.08, subclause 8.2.3.
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21.3.2.3 Test purpose
|
1. To verify, under static propagation conditions, that the received signal quality is measured and mapped to the eight levels of RXQUAL_FULL by the MS in a manner that can be related to an equivalent average BER before channel decoding (i.e. chip error ratio), assessed over the reporting period of one SACCH multiframe. The probability that the correct RXQUAL band is reported shall meet the values given as per the table in 3GPP TS 05.08, subclause 8.2.4.
2. To verify that the reported parameters (RXQUAL) are the received signal quality, averaged over the reporting period of length one SACCH multiframe.
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51.010-1
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21.3.2.4 Method of test
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51.010-1
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21.3.2.4.1 Initial conditions
|
A call is set up by the SS according to the generic call set up procedure on a half rate speech channel in the mid ARFCN range. The RADIO_LINK_TIMEOUT parameter value is set to maximum.
Specific PICS Statements:
-
PIXIT Statements:
- Loop C delay Half rate
The SS commands the MS to establish the TCH burst-by-burst loop (loop C), see subclause 36.
The SS produces a wanted signal and an independent uncorrelated interfering (unwanted) signal, both with static propagation characteristics. The wanted signal is the standard test signal C1. It is at the nominal frequency of the receiver and its level is 28 dBVemf (-85 dBm). The unwanted signal is the standard test signal I1, on the same timeslot on a nominal frequency 200 kHz above the nominal frequency of the wanted signal.
The SS sets downlink DTX off.
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21.3.2.4.2 Procedure
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a) The SS sets the level of the unwanted signal such that the BER of the looped back bursts, averaged over the reporting period as defined in 3GPP TS 05.08, subclause 8.4, is covered by one of the cases 1 to 13 of table 21.3.2.5.
b) The SS verifies that the MS reports RXQUAL and whether or not the reported level is correct by comparison with the RXQUAL level of the corresponding looped back bursts. The SS increases a sample counter(i), and then an event counter(i) for each incorrect MS reported RXQUAL level, where i corresponds to the case determined by the BER of the looped back bursts (table 21.3.2.5). The SS shall take 10 samples.
c) If the previous RXQUAL_n >= 6 the SS shall set the unwanted signal to a level that ensures SACCH bursts will be successfully received by the MS. The SS shall wait 7 SACCH multiframe periods. The SS shall reapply the unwanted signal, then wait 1 SACCH multiframe period *2
d) The SS shall increase the level of the unwanted signal in small steps*1, after each level change repeating step (b) until case 14 is reached.
e) The SS shall decrease the level of the unwanted signal in small steps*1, after each level change repeating step (b) until case 0 is reached.
f) Steps d) and e) should be repeated until the total number of samples, sumi=0..14(sample counter(i)) is a minimum of 3300.
g) The SS releases the call
*1 NOTE: It is intended that the small steps are ~0.2dB, however the accuracy and linearity of these steps is inconsequential to the outcome of the test. It is intended that the test will be performed over a range of C/I which are representative of the normal operational range of the MS.
*2 NOTE: This special case for poor RF conditions is intended to ensure that the RADIO_LINK_TIMEOUT does not expire. The values have been selected to guarantee a net SACCH/T FER less than 62% (effective limit before failure ~67%).
Maximum Duration of Test
40 minutes.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
21.3.2.5 Test requirements
|
The sets of test results for sample counter (i) and event counter (i) should be combined as follows.
sum i=0..14 ((event counter i * 100) / test limit i)
-----------------------------------------------------------
sum i=0..14 (sample counter i)
A result of <1 is a pass, >=1 is a fail.
Table 21.3.2.5: Test criteria and limits for RXQUAL_FULL for TCH/AHS
Case
(i)
BER estimated by MS/SS (all applicable bursts)
(%)
Expected RXQUAL
(RXQUAL_)
Test limit
DTX Off
(%)
0
<0.1
0
12.2
1
>=0.1, <0.26
0, 1
46
2
>=0.26, <0.3
1
46
3
>=0.3, <0.51
1, 2
46
4
>=0.51, <0.64
2
34.5
5
>=0.64, <1.0
2,3
34.5
6
>=1.0, <1.3
3
18.3
7
>=1.3, <1.9
3, 4
18.3
8
>=1.9, <2.7
4
18.3
9
>=2.7, <3.8
4, 5
18.3
10
>=3.8, <5.4
5
6.1
11
>=5.4, <7.6
5, 6
6.1
12
>=7.6, <11.0
6
6.1
13
>=11.0, <15.0
6, 7
6.1
14
>=15.0
7
6.1
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
21.3.3 Signal quality under static conditions - TCH/AFS – DTX off
| |
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
21.3.3.1 Definition
|
The MS must be capable of measuring the received signal quality, which is specified in terms of bit error ratio (BER) before channel decoding averaged over the reporting period of length of one SACCH multiframe defined in subclause 8.4 of 3GPP TS 05.08. The MS has to map this BER into RXQUAL values using the coding scheme defined in subclause 8.2.4 of 3GPP TS 05.08. For the full rate channel without downlink DTX, the error assessment is based on 104 TDMA frames: RXQUAL_FULL.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
21.3.3.2 Conformance requirement
|
1. The received signal quality shall be measured by the MS in a manner that can be related to an equivalent average BER before channel decoding (i.e. chip error ratio), assessed over the reporting period of one SACCH multiframe. When the quality is assessed over the full-set and sub-set of frames, eight levels of RXQUAL are defined and shall be mapped to the equivalent BER before channel decoding as per the table in 3GPP TS 05.08, subclauses 8.2.2 and 8.2.4.
2. The reported parameters (RXQUAL) shall be the received signal quality, averaged over the reporting period of length one SACCH multiframe; 3GPP TS 05.08, subclause 8.2.3.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
21.3.3.3 Test purpose
|
1. To verify, under static propagation conditions, that the received signal quality is measured and mapped to the eight levels of RXQUAL_FULL by the MS in a manner that can be related to an equivalent average BER before channel decoding (i.e. chip error ratio), assessed over the reporting period of one SACCH multiframe. The probability that the correct RXQUAL band is reported shall meet the values given by the table in 3GPP TS 05.08, subclause 8.2.4.
2. To verify that the reported parameters (RXQUAL) are the received signal quality, averaged over the reporting period of length one SACCH multiframe.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
21.3.3.4 Method of test
| |
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
21.3.3.4.1 Initial conditions
|
A call is set up according to the generic call set up procedure on a TCH/AFS with an ARFCN in the Mid ARFCN range, power control level set to maximum power. The RADIO_LINK_TIMEOUT parameter value is set to maximum.
Specific PICS Statements:
-
PIXIT Statements:
- Loop C delay Full rate
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 SS sends a CMC and CMI corresponding to the lowest codec mode (CODEC_MODE_1).
The SS produces a wanted signal and an independent uncorrelated interfering (unwanted) signal, both with static propagation characteristics. The SS transmits the wanted signal (Standard Test Signal C1) on the traffic channel at the nominal frequency of the receiver and its level is nominally 28 dBVemf (-85 dBm). The unwanted signal is the standard test signal I1, on the same timeslot on a nominal frequency 200 kHz above the nominal frequency of the wanted signal.
The SS commands the MS to establish the TCH burst-by-burst loop, see subclause 36.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
21.3.3.4.2 Procedure
|
a) The SS sets the level of the unwanted signal such that the BER of the looped back bursts, averaged over the reporting period as defined in 3GPP TS 05.08, subclause 8.4, is covered by one of the cases 1 to 13 of table 21.3.3.5.
b) The SS verifies that the MS reports RXQUAL and whether or not the reported level is correct by comparison with the RXQUAL level of the corresponding looped back bursts. The SS increases a sample counter(i), and then an event counter(i) for each incorrect MS reported RXQUAL level, where i corresponds to the case determined by the BER of the looped back bursts (table 21.3.3.5). The SS shall take 10 samples.
c) When sumi=0..14(sample counter(i)) = 800 the CMI shall be changed to indicate CODEC_MODE_2, at 1600 CMI = CODEC_MODE_3, and at 2400 CMI = CODEC_MODE_4.
d) If the previous RXQUAL_n >= 6 the SS shall set the unwanted signal to a level that ensures SACCH bursts will be successfully received by the MS. The SS shall wait 7 SACCH multiframe periods. The SS shall reapply the unwanted signal, then wait 1 SACCH multiframe period *2
e) The SS shall increase the level of the unwanted signal in small steps*1, after each level change repeating steps (b) and (c) until case 14 is reached.
f) The SS shall decrease the level of the unwanted signal in small steps*1, after each level change repeating step (b) and (c) until case 0 is reached.
g) Steps d) and e) should be repeated until the total number of samples, sumi=0..14(sample counter(i)) is a minimum of 3300.
h) The SS releases the call
*1 NOTE: It is intended that the small steps are ~0.2dB, however the accuracy and linearity of these steps is inconsequential to the outcome of the test. It is intended that the test will be performed over a range of C/I which are representative of the normal operational range of the MS.
*2 NOTE: This special case for poor RF conditions is intended to ensure that the RADIO_LINK_TIMEOUT does not expire. The values have been selected to guarantee a net SACCH/T FER less than 62% (effective limit before failure ~67%).
Maximum Duration of Test
40 minutes.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
21.3.3.5 Test requirements
|
The sets of test results for sample counter (i) and event counter (i) should be combined as follows.
sum i=0..14 ((event counter i * 100) / test limit i)
-----------------------------------------------------------
sum i=0..14 (sample counter i)
A result of <1 is a pass, >=1 is a fail.
Table 21.3.3.5: Test criteria and limits for RXQUAL_FULL for TCH/AFS
Case
(i)
BER estimated by MS/SS (all applicable bursts)
(%)
Expected RXQUAL
(RXQUAL_)
Test limit
DTX Off
(%)
0
<0.1
0
12.2
1
>=0.1, <0.26
0, 1
30.5
2
>=0.26, <0.3
1
30.5
3
>=0.3, <0.51
1, 2
30.5
4
>=0.51, <0.64
2
18.3
5
>=0.64, <1.0
2,3
18.3
6
>=1.0, <1.3
3
12.2
7
>=1.3, <1.9
3, 4
12.2
8
>=1.9, <2.7
4
12.2
9
>=2.7, <3.8
4, 5
12.2
10
>=3.8, <5.4
5
6.1
11
>=5.4, <7.6
5, 6
6.1
12
>=7.6, <11.0
6
6.1
13
>=11.0, <15.0
6, 7
6.1
14
>=15.0
7
6.1
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
21.3.4 Signal quality under static conditions - TCH/AHS - DTX Off
| |
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
21.3.4.1 Definition
|
The MS shall be capable of measuring the received signal quality, which is specified in terms of bit error ratio (BER) before channel decoding averaged over the reporting period of length of one SACCH multiframe defined in subclause 8.4 of 3GPP TS 05.08. The MS shall map this BER into RXQUAL values using the coding scheme defined in subclause 8.2.4 of 3GPP TS 05.08. For the half rate channel without downlink DTX, the error assessment is based on 52 TDMA frames: RXQUAL_FULL.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
21.3.4.2 Conformance requirement
|
1. The received signal quality shall be measured by the MS in a manner that can be related to an equivalent average BER before channel decoding (i.e. chip error ratio), assessed over the reporting period of one SACCH multiframe. When the quality is assessed over the full-set and sub-set of frames, eight levels of RXQUAL are defined and shall be mapped to the equivalent BER before channel decoding as per the table in 3GPP TS 05.08, subclauses 8.2.2 and 8.2.4.
2. The reported parameters (RXQUAL) shall be the received signal quality, averaged over the reporting period of length one SACCH multiframe; 3GPP TS 05.08, subclause 8.2.3.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
21.3.4.3 Test purpose
|
1. To verify, under static propagation conditions, that the received signal quality is measured and mapped to the eight levels of RXQUAL_FULL by the MS in a manner that can be related to an equivalent average BER before channel decoding (i.e. chip error ratio), assessed over the reporting period of one SACCH multiframe. The probability that the correct RXQUAL band is reported shall meet the values given by the table in 3GPP TS 05.08, subclause 8.2.4.
2. To verify that the reported parameters (RXQUAL) are the received signal quality, averaged over the reporting period of length one SACCH multiframe.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
21.3.4.4 Method of test
| |
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
21.3.4.4.1 Initial conditions
|
A call is set up according to the generic call set up procedure on a TCH/AHS with an ARFCN in the Mid ARFCN range, power control level set to maximum power. The RADIO_LINK_TIMEOUT parameter value is set to maximum.
Specific PICS Statements:
-
PIXIT Statements:
- Loop C delay Half rate
The multirate configuration indicates the use of the following set of codecs modes:
Codec Mode
TCH/AHS in kbit/s
CODEC_MODE_3
7.95
CODEC_MODE_2
6.7
CODEC_MODE_1
4,75
The Initial Codec mode (ICM) shall be set to the lowest codec mode (CODEC_MODE_1).
The SS continuously sends a CMC corresponding to the lowest codec mode (CODEC_MODE_1).
The SS produces a wanted signal and an independent uncorrelated interfering (unwanted) signal, both with static propagation characteristics. The SS transmits the wanted signal (Standard Test Signal C1 on the traffic channel using the Initial Codec Mode (ICM) at the nominal frequency of the receiver and its level is 28 dBVemf (-85 dBm). The unwanted signal is the standard test signal I1, on the same timeslot on a nominal frequency 200 kHz above the nominal frequency of the wanted signal.
The SS commands the MS to establish the TCH burst-by-burst loop, see subclause 36.
The SS sets downlink DTX off.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
21.3.4.4.2 Procedure
|
a) The SS sets the level of the unwanted signal such that the BER of the looped back bursts, averaged over the reporting period as defined in 3GPP TS 05.08, subclause 8.4, is covered by one of the cases 1 to 13 of table 21.3.4.5.
b) The SS verifies that the MS reports RXQUAL and whether or not the reported level is correct by comparison with the RXQUAL level of the corresponding looped back bursts. The SS increases a sample counter(i), and then an event counter(i) for each incorrect MS reported RXQUAL level, where i corresponds to the case determined by the BER of the looped back bursts (table 21.3.4.5). The SS shall take 10 samples.
c) When sumi=0..14(sample counter(i)) = 1100 the CMI shall be changed to indicate CODEC_MODE_2, at 2200 CMI = CODEC_MODE_3.
d) If the previous RXQUAL_n >= 6 the SS shall set the unwanted signal to a level that ensures SACCH bursts will be successfully received by the MS. The SS shall wait 7 SACCH multiframe periods. The SS shall reapply the unwanted signal, then wait 1 SACCH multiframe period *2
e) The SS shall increase the level of the unwanted signal in small steps*1, after each level change repeating steps (b) and (c) until case 14 is reached.
f) The SS shall decrease the level of the unwanted signal in small steps*1, after each level change repeating step (b) and (c) until case 0 is reached.
g) Steps d) and e) should be repeated until the total number of samples, sumi=0..14(sample counter(i)) is a minimum of 3300.
h) The SS releases the call
*1 NOTE: It is intended that the small steps are ~0.2dB, however the accuracy and linearity of these steps is inconsequential to the outcome of the test. It is intended that the test will be performed over a range of C/I which are representative of the normal operational range of the MS.
*2 NOTE: This special case for poor RF conditions is intended to ensure that the RADIO_LINK_TIMEOUT does not expire. The values have been selected to guarantee a net SACCH/T FER less than 62% (effective limit before failure ~67%).
Maximum Duration of Test
40 minutes.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
21.3.4.5 Test requirements
|
The sets of test results for sample counter (i) and event counter (i) should be combined as follows.
sum i=0..14 ((event counter i * 100) / test limit i)
-----------------------------------------------------------
sum i=0..14 (sample counter i)
A result of <1 is a pass, >=1 is a fail.
Table 21.3.4.5: Test criteria and limits for RXQUAL_FULL for TCH/AHS
Case
(i)
BER estimated by MS/SS (all applicable bursts)
(%)
Expected RXQUAL
(RXQUAL_)
Test limit
DTX Off
(%)
0
<0.1
0
12.2
1
>=0.1, <0.26
0, 1
46
2
>=0.26, <0.3
1
46
3
>=0.3, <0.51
1, 2
46
4
>=0.51, <0.64
2
34.5
5
>=0.64, <1.0
2,3
34.5
6
>=1.0, <1.3
3
18.3
7
>=1.3, <1.9
3, 4
18.3
8
>=1.9, <2.7
4
18.3
9
>=2.7, <3.8
4, 5
18.3
10
>=3.8, <5.4
5
6.1
11
>=5.4, <7.6
5, 6
6.1
12
>=7.6, <11.0
6
6.1
13
>=11.0, <15.0
6, 7
6.1
14
>=15.0
7
6.1
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
21.3.5 Signal quality under static conditions - TCH/AFS – DTX on
| |
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
21.3.5.1 Definition
|
The MS must be capable of measuring the received signal quality, which is specified in terms of bit error ratio (BER) before channel decoding averaged over the reporting period of length of one SACCH multiframe defined in subclause 8.4 of 3GPP TS 05.08. The MS has to map this BER into RXQUAL values using the coding scheme defined in subclause 8.2.4 of 3GPP TS 05.08. In case downlink DTX is used, the assessment is based on a subset of TDMA frames containing SID_UPDATE frames and SACCH frames: RXQUAL_SUB. On TCH/AFS and TCH/AHS, there is no fixed subset of TDMA frames that will always be transmitted during DTX, however a SID_UPDATE will be transmitted every 8 speech frames. A detection algorithm is required in the receiver which informs about whether a SID_UPDATE (see 3GPP TS 05.03 and 3GPP TS 06.93) frame was transmitted (and thus can be used for quality and signal level estimation) or not.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
21.3.5.2 Conformance requirement
|
1. The received signal quality shall be measured by the MS in a manner that can be related to an equivalent average BER before channel decoding (i.e. chip error ratio), assessed over the reporting period of one SACCH multiframe. When the quality is assessed over the full-set and sub-set of frames, eight levels of RXQUAL are defined and shall be mapped to the equivalent BER before channel decoding as per the table in 3GPP TS 05.08, subclauses 8.2.2 and 8.2.4.
2. The reported parameters (RXQUAL) shall be the received signal quality, averaged over the reporting period of length one SACCH multiframe; 3GPP TS 05.08, subclause 8.2.3.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
21.3.5.3 Test purpose
|
1. To verify that, for downlink DTX, the reported parameter RXQUAL_SUB is the received signal quality, averaged over the correct frames (SID_UPDATE and SACCH), mapped by the MS to the eight levels RXQUAL scale in a manner that can be related to an equivalent average BER before channel decoding assessed over the reporting period of one SACCH multiframe. The probability that the correct RXQUAL band is reported shall meet the values given by the table in 3GPP TS 05.08, subclause 8.2.4.
2. To verify that the reported parameters (RXQUAL) are the received signal quality, averaged over the reporting period of length one SACCH multiframe.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
21.3.5.4 Method of test
| |
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
21.3.5.4.1 Initial conditions
|
A call is set up according to the generic call set up procedure on a TCH/AFS with an ARFCN in the Mid ARFCN range, power control level set to maximum power. The RADIO_LINK_TIMEOUT parameter value is set to maximum.
Specific PICS Statements:
-
PIXIT Statements:
- Loop C delay Full rate
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 arbitrarilyset to one of the codec modes of the codec set. *3
The SS sends a CMC and CMI corresponding to the initial codec mode selection.
The SS produces a wanted signal and an independent uncorrelated interfering (unwanted) signal, both with static propagation characteristics. The SS transmits the wanted signal (Standard Test Signal C1) on the traffic channel at the nominal frequency of the receiver and its level is nominally 28 dBVemf (-85 dBm). The unwanted signal is the standard test signal I1, on the same timeslot on a nominal frequency 200 kHz above the nominal frequency of the wanted signal.
The SS commands the MS to establish the TCH burst-by-burst loop, see subclause 36.
The SS sets downlink DTX on.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
21.3.5.4.2 Procedure
|
a) The SS sets the level of the unwanted signal such that the BER of the looped back bursts, averaged over the reporting period as defined in 3GPP TS 05.08, subclause 8.4, is covered by one of the cases 1 to 13 of table 21.3.5.5.
b) The SS verifies that the MS reports RXQUAL and whether or not the reported level is correct by comparison with the RXQUAL level of the corresponding looped back bursts. The SS increases a sample counter(i), and then an event counter(i) for each incorrect MS reported RXQUAL level, where i corresponds to the case determined by the BER of the looped back bursts (table 21.3.5.5). The SS shall take 10 samples.
c) If the previous RXQUAL_n >= 6 the SS shall set the unwanted signal to a level that ensures SACCH bursts will be successfully received by the MS. The SS shall wait 7 SACCH multiframe periods. The SS shall reapply the unwanted signal, then wait 1 SACCH multiframe period *2
d) The SS shall increase the level of the unwanted signal in small steps*1, after each level change repeating step (b) and (c) until case 14 is reached.
e) The SS shall decrease the level of the unwanted signal in small steps*1, after each level change repeating step (b) and (c) until case 0 is reached.
f) Steps c) and d) should be repeated until the total number of samples, sumi=0..14(sample counter(i)) is a minimum of 1100.
g) The SS releases the call
*1 NOTE: It is intended that the small steps are ~0.2dB, however the accuracy and linearity of these steps is inconsequential to the outcome of the test. It is intended that the test will be performed over a range of C/I which are representative of the normal operational range of the MS.
*2 NOTE: This special case for poor RF conditions is intended to ensure that the RADIO_LINK_TIMEOUT does not expire. The values have been selected to guarantee a net SACCH/T FER less than 62% (effective limit before failure ~67%).
*3 NOTE: Using varying codec modes does not improve the test depth because the channel coding of the SID_UPDATE frames are identical for all codec modes. (TS 3GPP 45.003).
Maximum Duration of Test
15 minutes.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
21.3.5.5 Test requirements
|
The sets of test results for sample counter (i) and event counter (i) should be combined as follows.
sum i=0..14 ((event counter i * 100) / test limit i)
-----------------------------------------------------------
sum i=0..14 (sample counter i)
A result of <1 is a pass, >=1 is a fail.
Table 21.3.5.5: Test criteria and limits for RXQUAL_SUB for TCH/AFS
Case
(i)
BER measured by SS (12 of 16 bursts)
(%)
Assumed BER estimated by MS (16 of 16 bursts)
(%)
Expected
RXQUAL
(RXQUAL_)
Test limit
(%)
0
<0.05
<0.11
0,
40.25
1
>=0.05, <0.2
>=0.055, <0.256
0, 1
71.5
2
>=0.2, <0.4
>=0.164, <0.475
0, 1, 2
71.5
3
>=0.4, <0.5
>=0.329, <0.548
1, 2
71.5
4
>=0.5, <0.8
>=0.384, <0.914
1, 2, 3
71.5
5
>=0.8, <0.9
>=0.603, <1.096
2, 3
60.5
6
>=0.9, <1.5
>=0.713, <1.827
2, 3, 4
60.5
7
>=1.5, <1.8
>=1.151, <2.193
3, 4
60.5
8
>=1.8, <3.0
>=1.371, <3.746
3, 4, 5
60.5
9
>=3.0, <3.6
>=2.303, <4.477
4, 5
46
10
>=3.6, <6.0
>=2.741, <7.493
4, 5, 6
46
11
>=6.0, <7.3
>=4.550, <9.046
5, 6
34.5
12
>=7.3, <12.1
>=5.482, <15.077
5, 6, 7
34.5
13
>=12.1, <24.15
>=9.101, <30.154
6, 7
24.4
14
>=24.15
>=18.147
7
18.3
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
21.3.6 Signal quality under static conditions - TCH/AHS – DTX On
| |
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
21.3.6.1 Definition
|
The MS must be capable of measuring the received signal quality, which is specified in terms of bit error ratio (BER) before channel decoding averaged over the reporting period of length of one SACCH multiframe defined in subclause 8.4 of 3GPP TS 05.08. The MS has to map this BER into RXQUAL values using the coding scheme defined in subclause 8.2.4 of 3GPP TS 05.08. In case downlink DTX is used, the assessment is based on a subset of TDMA frames containing SID_UPDATE frames and SACCH frames: RXQUAL_SUB. On TCH/AHS, there is no fixed subset of TDMA frames that will always be transmitted during DTX, however a SID_UPDATE will be transmitted every 8 speech frames. A detection algorithm is required in the receiver that informs about whether a SID_UPDATE (see 3GPP TS 05.03 and 3GPP TS 06.93) frame was transmitted (and thus can be used for quality and signal level estimation) or not.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
21.3.6.2 Conformance requirement
|
1. The received signal quality shall be measured by the MS in a manner that can be related to an equivalent average BER before channel decoding (i.e. chip error ratio), assessed over the reporting period of one SACCH multiframe. When the quality is assessed over the full-set and sub-set of frames, eight levels of RXQUAL are defined and shall be mapped to the equivalent BER before channel decoding as per the table in 3GPP TS 05.08, subclauses 8.2.2 and 8.2.4.
2. The reported parameters (RXQUAL) shall be the received signal quality, averaged over the reporting period of length one SACCH multiframe; 3GPP TS 05.08, subclause 8.2.3.
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683b5b8a98f7b1390ddd5516ea9247a2
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51.010-1
|
21.3.6.3 Test purpose
|
1. To verify that, for downlink DTX, the reported parameter RXQUAL_SUB is the received signal quality, averaged over the correct frames (SID_UPDATE and SACCH), mapped by the MS to the eight levels RXQUAL scale in a manner that can be related to an equivalent average BER before channel decoding assessed over the reporting period of one SACCH multiframe. The probability that the correct RXQUAL band is reported shall meet the values given by the table in 3GPP TS 05.08, subclause 8.2.4.
2. To verify that the reported parameters (RXQUAL) are the received signal quality averaged over the reporting period of length one SACCH multiframe.
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683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
21.3.6.4 Method of test
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683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
21.3.6.4.1 Initial conditions
|
A call is set up according to the generic call set up procedure on a TCH/AHS with an ARFCN in the Mid ARFCN range, power control level set to maximum power. The RADIO_LINK_TIMEOUT parameter value is set to maximum.
Specific PICS Statements:
-
PIXIT Statements:
- Loop C delay Half rate
The multirate configuration indicates the use of the following set of codecs modes:
Codec Mode
TCH/AHS in kbit/s
CODEC_MODE_3
7.95
CODEC_MODE_2
6.7
CODEC_MODE_1
4,75
The Initial Codec Mode shall be arbitrarily set to one of the codec modes of the codec set. *3
The SS sends a CMC and CMI corresponding to the initial codec mode selection.
The SS produces a wanted signal and an independent uncorrelated interfering (unwanted) signal, both with static propagation characteristics. The SS transmits the wanted signal (Standard Test Signal C1) on the traffic channel at the nominal frequency of the receiver and its level is nominally 28 dBVemf (-85 dBm). The unwanted signal is the standard test signal I1, on the same timeslot on a nominal frequency 200 kHz above the nominal frequency of the wanted signal.
The SS commands the MS to establish the TCH burst-by-burst loop, see subclause 36.
The SS sets downlink DTX on.
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683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
21.3.6.4.2 Procedure
|
a) The SS sets the level of the unwanted signal such that the BER of the looped back bursts, averaged over the reporting period as defined in 3GPP TS 05.08, subclause 8.4, is covered by one of the cases 1 to 13 of table 21.3.6.5.
b) The SS verifies that the MS reports RXQUAL and whether or not the reported level is correct by comparison with the RXQUAL level of the corresponding looped back bursts. The SS increases a sample counter(i), and then an event counter(i) for each incorrect MS reported RXQUAL level, where i corresponds to the case determined by the BER of the looped back bursts (table 21.3.6.5). The SS shall take 10 samples.
c) If the previous RXQUAL_n >= 6 the SS shall set the unwanted signal to a level that ensures SACCH bursts will be successfully received by the MS. The SS shall wait 7 SACCH multiframe periods. The SS shall reapply the unwanted signal, then wait 1 SACCH multiframe period *2
d) The SS shall increase the level of the unwanted signal in small steps*1, after each level change repeating step (b) and (c) until case 14 is reached.
e) The SS shall decrease the level of the unwanted signal in small steps*1, after each level change repeating step (b) and (c) until case 0 is reached.
f) Steps c) and d) should be repeated until the total number of samples, sumi=0..14(sample counter(i)) is a minimum of 1200.
g) The SS releases the call
*1 NOTE: It is intended that the small steps are ~0.2dB, however the accuracy and linearity of these steps is inconsequential to the outcome of the test. It is intended that the test will be performed over a range of C/I which are representative of the normal operational range of the MS.
*2 NOTE: This special case for poor RF conditions is intended to ensure that the RADIO_LINK_TIMEOUT does not expire. The values have been selected to guarantee a net SACCH/T FER less than 62% (effective limit before failure ~67%).
*3 NOTE: Using varying codec modes does not improve the test depth because the channel coding of the SID_UPDATE frames are identical for all codec modes. (TS 3GPP 45.003).
Maximum Duration of Test
17 minutes.
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683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
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21.3.6.5 Test requirements
|
The sets of test results for sample counter (i) and event counter (i) should be combined as follows.
sum i=0..14 ((event counter i * 100) / test limit i)
-----------------------------------------------------------
sum i=0..14 (sample counter i)
A result of <1 is a pass, >=1 is a fail.
Table 21.3.6.5: Test criteria and limits for RXQUAL_SUB for TCH/AHS
Case
(i)
BER measured by SS (12 of 16 bursts)
(%)
Assumed BER estimated by MS (16 of 16 bursts)
(%)
Expected
RXQUAL
(RXQUAL_)
Test limit
(%)
0
<0.05
<0.11
0,
40.25
1
>=0.05, <0.2
>=0.055, <0.256
0, 1
71.5
2
>=0.2, <0.4
>=0.164, <0.475
0, 1, 2
71.5
3
>=0.4, <0.5
>=0.329, <0.548
1, 2
71.5
4
>=0.5, <0.8
>=0.384, <0.914
1, 2, 3
71.5
5
>=0.8, <0.9
>=0.603, <1.096
2, 3
60.5
6
>=0.9, <1.5
>=0.713, <1.827
2, 3, 4
60.5
7
>=1.5, <1.8
>=1.151, <2.193
3, 4
60.5
8
>=1.8, <3.0
>=1.371, <3.746
3, 4, 5
60.5
9
>=3.0, <3.6
>=2.303, <4.477
4, 5
46
10
>=3.6, <6.0
>=2.741, <7.493
4, 5, 6
46
11
>=6.0, <7.3
>=4.550, <9.046
5, 6
34.5
12
>=7.3, <12.1
>=5.482, <15.077
5, 6, 7
34.5
13
>=12.1, <24.15
>=9.101, <30.154
6, 7
24.4
14
>=24.15
>=18.147
7
18.3
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683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
21.4 Signal quality under TUhigh propagation conditions
|
In order to have a testing performance corresponding to that in clause 14 for high error rates, the multiplication factor of the tested error rate with respect to the specified error rate have been increased. The following figures have been used (TUHigh propagation conditions):
Specified error rate
Multiplication factor
min. Max-events
25 %
1,22
200
30 - 40 %
1,15
300
> 40 %
1,1
400
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683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
21.4.1 Signal quality under TUhigh propagation conditions - TCH/FS
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683b5b8a98f7b1390ddd5516ea9247a2
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51.010-1
|
21.4.1.1 Definition
|
The MS must be capable of measuring the received signal quality, which is specified in terms of bit error ratio (BER) before channel decoding averaged over the reporting period of length of one SACCH multiframe defined in subclause 8.4 of 3GPP TS 05.08. The MS has to map this BER into RXQUAL values using the coding scheme defined in subclause 8.2.4 of 3GPP TS 05.08. For the full rate channel without downlink DTX, the error assessment is based on 104 TDMA frames: RXQUAL_FULL.
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683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
21.4.1.2 Conformance requirement
|
1. The received signal quality shall be measured by the MS in a manner that can be related to an equivalent average BER before channel decoding (i.e. chip error ratio), assessed over the reporting period of 1 SACCH multiframe. The assessed equivalent BER before channel decoding shall be mapped to the eight levels of RXQUAL using the coding scheme defined in subclause 8.2.4 of 3GPP TS 05.08 subclauses 8.2.2 and 8.2.4.
2. The reported parameters (RXQUAL) shall be the received signal quality, averaged over the reporting period of length one SACCH multiframe.
3GPP TS 05.08, subclause 8.2.3.
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683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
21.4.1.3 Test purpose
|
1. To verify, under TUhigh conditions, that the received signal quality is measured and reported to the eight levels of RXQUAL_FULL by the MS in a manner that can be related to an equivalent average BER before channel decoding (i.e. chip error ratio), assessed over the reporting period of length one SACCH multiframe for the TCH/FS. The probability that the correct RXQUAL band is reported shall meet the values given as per the table in 3GPP TS 05.08 subclause 8.2.
2. To verify that the reported parameters (RXQUAL) is the received signal quality, averaged over the reporting period of length one SACCH multiframe.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
21.4.1.4 Method of test
| |
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
21.4.1.4.1 Initial conditions
|
The SS sets up a call according to the generic call set up procedure on a full rate speech channel in the mid ARFCN range. The RADIO_LINK_TIMEOUT parameter is set to maximum.
Specific PICS Statements:
-
PIXIT Statements:
- Loop C delay Full rate
The SS commands the MS to establish the TCH burst-by-burst loop (C), see subclause 36.
The SS produces the standard test signal C1, with TUhigh propagation profile. It shall be at the nominal frequency of the receiver at a level of 28 dBVemf (-85 dBm).
The SS also generates an independent, uncorrelated interfering (unwanted) signal with TUhigh propagation profile. The unwanted signal is the standard test signal I1, on the same timeslot and same ARFCN of the wanted signal.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
21.4.1.4.2 Procedure
|
a) The SS sets the level of the unwanted signal such that the BERof the looped back bursts, averaged over the reporting period as defined in 3GPP TS 05.08, subclause 8.4, is covered by one of the cases 1 to 13 of table 21.4.1.5.
b) The SS verifies that the MS reports RXQUAL and whether or not the reported level is correct by comparison with the RXQUAL level of the corresponding looped back bursts. The SS increases a sample counter(i), and then an event counter(i) for each incorrect MS reported RXQUAL level, where i corresponds to the case determined by the BER of the looped back bursts (table 21.4.1.5). The SS shall take 10 samples.
c) If the previous RXQUAL_n >= 6 the SS shall set the unwanted signal to a level that ensures SACCH bursts will be successfully received by the MS. The SS shall wait 7 SACCH multiframe periods. The SS shall reapply the unwanted signal, then wait 1 SACCH multiframe period *2
d) The SS shall increase the level of the unwanted signal in small steps*1, after each level change repeating steps (b) and (c) until case 14 is reached.
e) The SS shall decrease the level of the unwanted signal in small steps*1, after each level change repeating step (b) and (c) until case 0 is reached.
f) Steps b) through e) should be repeated until the total number of samples, sumi=0..14(sample counter(i)) is a minimum of 1650 (minimum total events(200)/minimum test limit(0.122)).
g) The SS removes the unwanted signal and releases the call.
*1 NOTE: It is intended that the small steps are ~0.2dB, however the accuracy and linearity of these steps is inconsequential to the outcome of the test. It is intended that the test will be performed over a range of C/I which are representative of the normal operational range of the MS.
*2 NOTE: This special case for poor RF conditions is intended to ensure that the RADIO_LINK_TIMEOUT does not expire. The values have been selected to guarantee a net SACCH/T FER less than 62% (effective limit before failure ~67%).
Maximum Duration of Test
14 minutes.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
21.4.1.5 Test requirements
|
The sets of test results for sample counter (i) and event counter (i) should be combined as follows.
sum i=0..14 ((event counter i * 100) / test limit i)
-----------------------------------------------------------
sum i=0..14 (sample counter i)
A result of <1 is a pass, >=1 is a fail.
Table 21.4.1.5: Test criteria and limits for RXQUAL FULL errors for TCH/FS
Case
(i)
BER estimated by MS/SS (all applicable bursts)
(%)
Expected
RXQUAL
(RXQUAL_)
Test limit
0
<0.1
0, 1
18.3
1
>=0.1, <0.26
0, 1, 2
18.3
2
>=0.26, <0.3
0, 1, 2
18.3
3
>=0.3, <0.51
0, 1, 2, 3
18.3
4
>=0.51, <0.64
1, 2, 3
18.3
5
>=0.64, <1.0
1, 2, 3, 4
30.5
6
>=1.0, <1.3
2, 3, 4
30.5
7
>=1.3, <1.9
2, 3, 4, 5
30.5
8
>=1.9, <2.7
3, 4, 5
30.5
9
>=2.7, <3.8
3, 4, 5, 6
30.5
10
>=3.8, <5.4
4, 5, 6
12.2
11
>=5.4, <7.6
4, 5, 6, 7
12.2
12
>=7.6, <11.0
5, 6, 7
12.2
13
>=11.0, <15.0
5, 6, 7
12.2
14
>=15.0
6, 7
12.2
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683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
21.4.2 Signal quality under TUhigh propagation conditions - TCH/AFS
| |
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
21.4.2.1 Definition
|
The MS shall be capable of measuring the received signal quality, which is specified in terms of bit error ratio (BER) before channel decoding averaged over the reporting period of length of one SACCH multiframe defined in subclause 8.4 of 3GPP TS 05.08. The MS shall map this BER into RXQUAL values using the coding scheme defined in subclause 8.2.4 of 3GPP TS 05.08. For the full rate channel without downlink DTX, the error assessment is based on 104 TDMA frames: RXQUAL_FULL.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
21.4.2.2 Conformance requirement
|
1. The received signal quality shall be measured by the MS in a manner that can be related to an equivalent average BER before channel decoding (i.e. chip error ratio), assessed over the reporting period of 1 SACCH multiframe. The assessed equivalent BER before channel decoding shall be mapped to the eight levels of RXQUAL using the coding scheme defined in subclause 8.2.4 of 3GPP TS 05.08 subclauses 8.2.2 and 8.2.4.
2. The reported parameters (RXQUAL) shall be the received signal quality, averaged over the reporting period of length one SACCH multiframe; 3GPP TS 05.08, subclause 8.2.3.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
21.4.2.3 Test purpose
|
1. To verify, under TUhigh conditions, that the received signal quality is measured and reported to the eight levels of RXQUAL_FULL by the MS in a manner that can be related to an equivalent average BER before channel decoding (i.e. chip error ratio), assessed over the reporting period of length one SACCH multiframe for the TCH/AFS. The probability that the correct RXQUAL band is reported shall meet the values given by the table in 3GPP TS 05.08 subclause 8.2.
2. To verify that the reported parameters (RXQUAL) is the received signal quality, averaged over the reporting period of length one SACCH multiframe.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
21.4.2.4 Method of test
| |
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
21.4.2.4.1 Initial conditions
|
A call is set up according to the generic call set up procedure on a TCH/AFS with an ARFCN in the Mid ARFCN range, power control level set to maximum power. The RADIO_LINK_TIMEOUT parameter value is set to maximum.
Specific PICS Statements:
-
PIXIT Statements:
- Loop C delay Full rate
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 SS sends a CMC and CMI corresponding to the lowest codec mode (CODEC_MODE_1).
The SS produces a wanted signal and an independent uncorrelated interfering (unwanted) signal, both with TUhigh propagation characteristics. The SS transmits the wanted signal (Standard Test Signal C1) on the traffic channel, with TUhigh propagation profile, at the nominal frequency of the receiver at a level of 28 dBVemf (-85 dBm). The unwanted signal is the standard test signal I1, on the same timeslot and on same ARFCN of the wanted signal.
The SS commands the MS to establish the TCH burst-by-burst loop (C), see subclause 36.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
21.4.2.4.2 Procedure
|
a) The SS sets the level of the unwanted signal such that the BER of the looped back bursts, averaged over the reporting period as defined in 3GPP TS 05.08, subclause 8.4, is covered by one of the cases 1 to 13 of table 21.4.2.5.
b) The SS verifies that the MS reports RXQUAL and whether or not the reported level is correct by comparison with the RXQUAL level of the corresponding looped back bursts. The SS increases a sample counter(i), and then an event counter(i) for each incorrect MS reported RXQUAL level, where i corresponds to the case determined by the BER of the looped back bursts (table 21.4.2.5). The SS shall take 10 samples.
c) When sumi=0..14(sample counter(i)) = 400 the CMI shall be changed to indicate CODEC_MODE_2, at 800 CMI = CODEC_MODE_3, and at 1200 CMI = CODEC_MODE_4.
d) If the previous RXQUAL_n >= 6 the SS shall set the unwanted signal to a level that ensures SACCH bursts will be successfully received by the MS. The SS shall wait 7 SACCH multiframe periods. The SS shall reapply the unwanted signal, then wait 1 SACCH multiframe period *2
e) The SS shall increase the level of the unwanted signal in small steps*1, after each level change repeating steps (b) and (c) until case 14 is reached.
f) The SS shall decrease the level of the unwanted signal in small steps*1, after each level change repeating step (b) and (c) until case 0 is reached.
g) Steps d) and e) should be repeated until the total number of samples, sumi=0..14(sample counter(i)) is a minimum of 1650.
h) The SS releases the call.
*1 NOTE: It is intended that the small steps are ~0.2dB, however the accuracy and linearity of these steps is inconsequential to the outcome of the test. It is intended that the test will be performed over a range of C/I which are representative of the normal operational range of the MS.
*2 NOTE: This special case for poor RF conditions is intended to ensure that the RADIO_LINK_TIMEOUT does not expire. The values have been selected to guarantee a net SACCH/T FER less than 62% (effective limit before failure ~67%).
Maximum Duration of Test
14 minutes.
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
21.4.2.5 Test requirements
|
The sets of test results for sample counter (i) and event counter (i) should be combined as follows.
sum i=0..14 ((event counter i * 100) / test limit i)
-----------------------------------------------------------
sum i=0..14 (sample counter i)
A result of <1 is a pass, >=1 is a fail.
Table 21.4.2.5: Test criteria and limits for RXQUAL FULL errors for TCH/AFS
Case
(i)
BER estimated by MS/SS (all applicable bursts)
(%)
Expected
RXQUAL
(RXQUAL_)
Test limit
0
<0.1
0, 1
18.3
1
>=0.1, <0.26
0, 1, 2
18.3
2
>=0.26, <0.3
0, 1, 2
18.3
3
>=0.3, <0.51
0, 1, 2, 3
18.3
4
>=0.51, <0.64
1, 2, 3
18.3
5
>=0.64, <1.0
1, 2, 3, 4
30.5
6
>=1.0, <1.3
2, 3, 4
30.5
7
>=1.3, <1.9
2, 3, 4, 5
30.5
8
>=1.9, <2.7
3, 4, 5
30.5
9
>=2.7, <3.8
3, 4, 5, 6
30.5
10
>=3.8, <5.4
4, 5, 6
12.2
11
>=5.4, <7.6
4, 5, 6, 7
12.2
12
>=7.6, <11.0
5, 6, 7
12.2
13
>=11.0, <15.0
5, 6, 7
12.2
14
>=15.0
6, 7
12.2
|
683b5b8a98f7b1390ddd5516ea9247a2
|
51.010-1
|
21.4.3 Signal quality under TUhigh propagation conditions - TCH/AHS
|
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