20.26 Decoding of BCCH including information for UTRAN TDD cells
3GPP51.010-1Mobile Station (MS) conformance specificationPart 1: Conformance specificationTS
20.26.1 Conformance requirement
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.
20.26.2 Test purpose
To verify that the MS performs correctly when BCCH of suitable cell includes information for UTRAN-TDD cells.
20.26.3 Method of test
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.
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.
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.
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 |