7.1.11 PDSCH subframe assignment for BL/CE UE

36.2133GPPEvolved Universal Terrestrial Radio Access (E-UTRA)Physical layer proceduresRelease 17TS

A BL/CE UE shall upon detection of a MPDCCH with DCI format 6-1A/6-1B/6-2 intended for the UE, decode the corresponding PDSCH in subframe(s) n+ki with i = 0, 1, …, NTBN-1 according to the MPDCCH, where

– subframe n is the last subframe in which the MPDCCH is transmitted and is determined from the starting subframe of MPDCCH transmission and the DCI subframe repetition number field in the corresponding DCI;

– the value of is the number of scheduled TB determined in the corresponding DCI if present, otherwise;

– the value of is determined by the repetition number field in the corresponding DCI, where are given in Table 7.1.11-1, Table 7.1.11-2 and Table 7.1.11-3, respectively

– if the UE is configured with higher layer parameter multiTB-Gap and the PDSCH corresponds to an MPDCCH with DCI CRC scrambled by G-RNTI,

– subframe(s) ni = n+ki with i=0,1,…, NTBN-1 are NTBN BL/CE DL subframe(s), where, subframe n+x is the second BL/CE DL subframe after subframe n, and for , subframe is the first BL/CE DL subframe after subframe , where is given by higher layer parameter multiTB-Gap, and .

– otherwise,

– subframe(s) ni = n+ki with i=0,1,…, NTBN-1 are NTBN consecutive BL/CE DL subframe(s), where , and subframe n+x is the jth BL/CE DL subframe after subframe n, and j is given by the value of the PDSCH scheduling delay option as defined in [4] if the UE is configured with CEModeA and ‘PDSCH scheduling delay and HARQ-ACK delay for 14 HARQ’ field is present in the corresponding DCI, j=2 otherwise.

– for ,

– if the UE is configured with higher layer parameter interleaving in ce-PDSCH-MultiTB-Config, and PDSCH corresponding to a MPDCCH with DCI CRC scrambled by C-RNTI and where for BL/CE UE configured with CEModeA, for BL/CE UE configured with CEModeB,

– BL/CE DL subframes with are associated with TBr+1 ,

– otherwise,

– BL/CE DL subframes with are associated with TBr+1 , .

For BL/CE UEs, and for a PDSCH transmission starting in subframe n+k0 without a corresponding MPDCCH, the UE shall decode the PDSCH transmission in subframe(s) n+ki with i = 0, 1, …, N-1, where

– subframe(s) n+ki with i=0,1,…,N-1 are N consecutive BL/CE DL subframe(s), where 0≤k0<k1<…,kN-1 and the value of is determined by the repetition number field in the activation DCI, where are given in Table 7.1.11-1, Table 7.1.11-2 and Table 7.1.11-3, respectively.

If PDSCH carrying SystemInformationBlockType1-BR is transmitted in one narrowband in subframe n+ki, a BL/CE UE shall assume any other PDSCH in the same narrowband in the subframe n+ki is dropped. If PDSCH carrying SI message is transmitted in one narrowband in subframe n+ki, a BL/CE UE shall assume any other PDSCH not carrying SystemInformationBlockType1-BR in the same narrowband in the subframe n+ki is dropped.

For single antenna port (port 0), transmit diversity and closed-loop spatial multiplexing transmission schemes, if a PDSCH is transmitted in BL/CE DL subframe n+ki and BL/CE DL subframe n+ki is configured as an MBSFN subframe, a BL/CE UE shall assume that the PDSCH in subframe n+ki is dropped.

For PDSCH assigned by MPDCCH with DCI CRC scrambled by G-RNTI and DCI Format 6-1A, the UE shall use the higher layer parameter pdsch-maxNumRepetitionCEmodeA-SC-MTCH instead of pdsch-maxNumRepetitionCEmodeA in Table 7.1.11-1.

For PDSCH assigned by MPDCCH with DCI CRC scrambled by G-RNTI and DCI Format 6-1B, the UE shall use the higher layer parameter pdsch-maxNumRepetitionCEmodeB-SC-MTCH instead of pdsch-maxNumRepetitionCEmodeB in Table 7.1.11-2.

For a BL/CE UE in half-duplex FDD operation, if the UE is configured with CEModeA, and configured with higher layer parameter ce-HARQ-AckBundling, and ‘HARQ-ACK bundling flag’ in the corresponding DCI is set to 1, the UE shall assume .

Table 7.1.11-1: PDSCH repetition levels (DCI Format 6-1A)

Higher layer parameter

‘pdsch-maxNumRepetitionCEmodeA‘

Not configured

{1,2,4,8}

16

{1,4,8,16}

32

{1,4,16,32}

Table 7.1.11-2: PDSCH repetition levels (DCI Format 6-1B)

Higher layer parameter

‘pdsch-maxNumRepetitionCEmodeB‘

Not configured

{4,8,16,32,64,128,256,512}

192

{1,4,8,16,32,64,128,192}

256

{4,8,16,32,64,128,192,256}

384

{4,16,32,64,128,192,256,384}

512

{4,16,64,128,192,256,384,512}

768

{8,32,128,192,256,384,512,768}

1024

{4,8,16,64,128,256,512,1024}

1536

{4,16,64,256,512,768,1024,1536}

2048

{4,16,64,128,256,512,1024,2048}

Table 7.1.11-3: PDSCH repetition levels (DCI Format 6-2)

2-bit "DCI subframe repetition number"

field in DCI Format 6-2

00

{1,2,4,8,16,32,64,128}

01

{4,8,16,32,64,128,192,256}

10

{32,64,128,192,256,384,512,768}

11

{192,256,384,512,768,1024,1536,2048}