6.1.2 Data content of Physical channels and Signals for E-TM
36.1413GPPBase Station (BS) conformance testingEvolved Universal Terrestrial Radio Access (E-UTRA)Release 17TS
Randomisation of the data content is obtained by utilizing the length-31 Gold sequence scrambling of TS36.211, Clause 7.2 [12] which is invoked by all physical channels prior to modulation and mapping to the RE grid. An appropriate number of ‘0’ bits shall be generated prior to the scrambling.
In case multiple carriers are configured with E-TMs, the 
shall be incremented by 1 for each additional configured carrier.
Initialization of the scrambler and RE-mappers as defined in TS36.211 [12] use the following additional parameters:
– 
= 0 (used for PBCH)
– The E-TM shall start when 
= 0
– 
= 1 for the lowest configured carrier, 
= 2 for the 2nd lowest configured carrier,…, = n for the nth configured carrier
– p = 0 (data generated according to definitions in TS36.211 for antenna port 0). p = 0 shall be used for the generation of the E-TM data, even if the signal is transmitted on a physical port other than port 0.
– q = 0 (single code word)
6.1.2.1 Reference signals
Sequence generation, modulation and mapping to REs according to TS36.211, clause 6.10.1
6.1.2.2 Primary Synchronization signal
Sequence generation, modulation and mapping to REs according to TS36.211, clause 6.11.1
6.1.2.3 Secondary Synchronization signal
Sequence generation, modulation and mapping to REs according to TS36.211, clause 6.11.2
6.1.2.4 PBCH
– 240 REs (480 bits) are available for PBCH for the duration of the E-UTRA test models (1 frame, 10 ms)
– Generate 480 bits of ‘all 0’ data
– Initialize scrambling generator for each invocation of the E-TM, i.e. set always 
= 0
– Perform scrambling according to TS36.211, clause 6.6.1 of the 480 bits
– Perform modulation according to TS36.211, clause 6.6.2
– Perform mapping to REs according to TS36.211, clause 6.6.4
6.1.2.5 PCFICH
– Generate 32 bit CFI codeword according to TS36.212, clause 5.3.4.
– Perform scrambling according to TS36.211, clause 6.7.1
– Perform modulation according to TS36.211, clause 6.7.2
– Perform mapping to REs according to TS36.211, clause 6.7.4
6.1.2.6 PHICH
– PHICH duration is assumed as ‘Normal’ according to TS36.211, clause 6.9.3
– Set 
= 1/6 to obtain 
, see TS36.211, clause 6.9
– Use 2 PHICH per group, 
= 0, 4
– For frame structure type 2 the factor 
shall not be set as per TS36.211, Table 6.9-1, but instead shall be set to 
for all transmitted subframes (Note).
– For each subframe the required amount of HARQ Indicators (HI) is as follows: 
*(2 PHICH per group).
– Generate this amount of HIs using ‘0’ data for each HI.
– Generate 3 bit HI codeword according to TS36.212, clause 5.3.5
– Perform scrambling and modulation according to TS36.211, clause 6.9.1
– Perform mapping to REs according to TS36.211, clause 6.9.3
NOTE: This is in order to preserve commonality between FDD and TDD E-TM.
6.1.2.7 PDCCH
– For each subframe the required amount of bits for all PDCCHs is as follows: (# of PDCCH)*(# of CCE per PDCCH)* (9 REG per CCE)*(4 RE per REG)*(2 bits per RE) with these parameters according to the E-TM definitions in subclause 6.1.1
– Generate this amount of bits according to ‘all 0’ data
– Numbering of CCEs shall be according to TS36.211, clause 6.8.1. Mapping of PDCCHs to the available CCEs is performed as follows: First PDCCH is mapped to CCE(0), second PDCCH to CCE(0+ ‘# of CCEs per PDCCH’), … etc. The remaining resources not used for PDCCH are treated as <NIL> REGs according to TS36.211, clause 6.8.2
– Perform PDCCH multiplexing and scrambling according to TS36.211, clause 6.8.2
– Perform modulation according to TS36.211, clause 6.8.3
– Perform mapping to REs according to TS36.211, clause 6.8.5
6.1.2.8 PDSCH or sPDSCH
– For each subframe generate the required amount of bits for all PRBs according to ‘all 0’ data
– PRB numbering is according to TS36.211, clause 6.2.3
– E-TMs utilize 1 user or 2 user PDSCH transmissions distinguished by 
. For each E-TM, PRBs are mapped to users (
) according to their respective PRB attribute as follows:
Table 6.1.2.8-1: Mapping of PRBs to 
for each E-TM
|
|
|
|
E-TM1.1 |
0 for all PRBs |
|
E-TM1.2 |
0 for boosted PRBs or those with PA = 0dB 1 for de-boosted PRBs |
|
E-TM2 |
0 for all PRBs |
|
E-TM3.1 |
0 for all PRBs |
|
E-TM3.2 |
0 for QPSKPRBs 1 for 16QAM PRBs |
|
E-TM3.3 |
0 for 16QAM PRBs 1 for QPSK PRBs |
– The required amount of PDSCH (sPDSCH for sTTI) ‘0’ bits within a subframes and allocated PRBs shall be generated for each user
– Perform user specific scrambling according to TS36.211, clause 6.3.1. This makes use of 
.
– Perform modulation of the scrambled bits with the modulation scheme defined for each user according to TS36.211, clause 6.3.2
– Perform mapping of the complex-valued symbols to PRBs according to TS36.211, clause 6.3.5.
6.1.2.9 sPDCCH
– For each subslot (sublsot TTI) the required amount of bits for all sPDCCHs is as follows: (# of sPDCCH)*(# of sCCE per sPDCCH)* (NSREG sREG per sCCE)*(12 RE per sREG)*(2 bits per RE) with these parameters according to the E-TM definitions in subclause 6.1.1, with NSREG = 4 (for 2 symbols) or 6 (for 3 symbols)
– For each slot (slot TTI) the required amount of bits for all sPDCCHs is as follows: (# of sPDCCH)*(# of sCCE per sPDCCH)* (4 sREG per sCCE)*(12 RE per sREG)*(2 bits per RE) with these parameters according to the E-TM definitions in subclause 6.1.1
– Generate this amount of bits according to ‘all 0’ data
– Numbering of sCCEs shall be according to TS36.211, clause 6.8C.1. Mapping of sPDCCHs to the available sCCEs is performed as follows: First sPDCCH is mapped to sCCE(0), second sPDCCH to sCCE(0+ ‘# of sCCEs per sPDCCH’), … etc. The remaining resources not used for sPDCCH are treated as <NIL> sREGs according to TS36.211, clause 6.8C.2
– Perform sPDCCH multiplexing and scrambling according to TS36.211, clause 6.8C.2
– Perform modulation according to TS36.211, clause 6.8C.3
– Perform mapping to REs according to TS36.211, clause 6.8C.5