Table 7.1-6B: MPDCCH and PDSCH configured by SPS C-RNTI
Transmission mode Mode 1 6-1A 6-1A UE specific by C-RNTI Type0-Common Transmit diversity (see subclause 7.1.2) 6-1A 6-1A UE specific by C-RNTI Type0-Common UE specific by C-RNTI Type0-Common UE specific by C-RNTI Transmit diversity(see subclause 7.1.2) Transmit diversity(see subclause 7.1.2) Single-antenna port, port 7 (see subclause 7.1.1) Single-antenna port, port 7 (see subclause 7.1.1) DCI format 6-1A Search Space Type0-Common Transmission scheme of PDSCH corresponding to MPDCCH Single-antenna port, port 0 (see subclause 7.1.1) Mode 2 Mode 6 6-1A 6-1A Mode 9 6-1A Table 7.1-8: MPDCCH and PDSCH configured by Temporary C-RNTIand/or C-RNTI during
random access procedure
DCI format DCI format 6-1A DCI format 6-1B Search Space Type2-Common Type2-Common Transmission scheme of PDSCH corresponding to MPDCCH If the number of PBCH antenna port is one, Single-antenna port, port 0 is used (see subclause 7.1.1), otherwise Transmit diversity (see subclause 7.1.2) If the number of PBCH antenna port is one, Single-antenna port, port 0 is used (see subclause 7.1.1), otherwise Transmit diversity (see subclause 7.1.2) ? 上行相关
Table 8-3B: MPDCCH and PUSCH configured by C-RNTI
Transmission mode Mode 1 DCI format DCI format 6-0A or 6-0B Search Space Type0-common (only for 6-0A) and UE specific by C-RNTI Transmission scheme of PUSCH corresponding to MPDCCH Single-antenna port, port 10 (see subclause 8.0.1) Table 8-4B: MPDCCH configured as \
DCI format DCI format 6-1A or 6-1B Search Space Type0-common (only for 6-1A) and UE specific by C-RNTI
Table 8-5B: MPDCCH and PUSCH configured by SPS C-RNTI
Transmission mode Mode 1 DCI format DCI format 6-0A Search Space Type0-common (only for 6-0A) and UE specific by C-RNTI Transmission scheme of PUSCH corresponding to PDCCH Single-antenna port, port 10 (see subclause 8.0.1) Table 8-6A: MPDCCH configured by Temporary C-RNTI and/or C-RNTI during random
access procedure
DCI format DCI format 6-0A, 6-0B Search Space Type2-Common Table 8-7A: MPDCCH configured by TPC-PUCCH-RNTI
DCI format DCI format 3/3A Search Space Type0-Common (for CEModeA only) Table 8-8A: MPDCCH configured by TPC-PUSCH-RNTI
DCI format DCI format 3/3A Search Space Type0-Common (for CEModeA only)
3.10.6MPDCCH assignment procedure
MPDCCH检测的narrow band index由高层配置参数mpdcch-Narrowband-r13决定，如果跳频使
能，则mpdcch-Narrowband-r13只是决定第一个MPDCCH传输子帧的narrowband Index，后续的narrowband Index 需要根据跳频参数计算得到。
UE可以被配置监控1或2个MPDCCH-PRB-sets，可以是2 RB，4RB or 2+4RB.
定义了3种common search space和一个UE-specific search space，不同Type针对不同的RNTI，定义了不同的搜索空间。
Type0-MPDCCH common search space: 用于C-RNTI，SPS C-RNTI, Tmp C-RNTI (TPC-PUCCH-
RNTI, TPC-PUSCH-RNTI for UL)
Type1-MPDCCH common search space: 用于P-RNTI(DCI format 6-2) Type2-MPDCCH common search space: 用于RA-RNTI (DCI format 6-1A/6-1B) MPDCCH UE-specific search space: C-RNTI, SPS C-RNTI
CEModeB不需要监测Type0-MPDCCH common search space； UE-specific search space 不需要和type1/type2 common search space同收；
3.10.7Start symbol
lMPDCCHStartis given by the higher layer parameter startSymbolLC
Until BL/CE UE receives higher layer configuration of MPDCCH UE-specific search space, the BL/CE UE monitors MPDCCH according to the same configuration of MPDCCH search space and Narrowband as that for MPDCCH scheduling Msg4.
4 基本流程介绍
4.1 搜网及系统消息更新
4.1.1 ICS
PSS/SSS设计没有改变，但需要增加非相干累加长度以对抗更低的信噪比 (-15dB以下),同时协议中的同步要求时间也会放宽。 因此BL/CE 的CellID和原小区的CellID相同。
4.1.2 MIB
MIB调度基本上和Legacy UE相同，也是占用中心的6个RB，Legacy UE的MIB在40ms内的每个子帧0的TTI0的slot1的前4个OS上传输(MIB RM之后的资源填满这16个OS). 而BL/CE UE的MIB会对每一个子帧的数据再重传3~5次，用于提高极低信噪比下的接收性能。重传所在的帧号/子帧号/slot号/symbol号参考table 6.6.4-1 for FDD和table 6.6.4-2 for TDD。FDD 的重传在前一个无线帧的子帧9和当前子帧；TDD的重传在当前子帧和当前无线帧的子帧5。重传的时候，不只是对应symbol上的数据重传，其中包含的CRS也全部重传。如果该RE本身已经是CRS位置，则不需要被重传symbol的CRS取代。由于MIB资源映射的时候，默认按照4天线的CRS位置映射，因此从下面的重传表格看，不会出现原始symbol上的data RE覆盖重传symbol上的CRS RE的情况。
FDD: 1 MIB periodSFN=0MIBTTI 9SFN=1DDDDDDDMIBMIBDDDDDDDDMIBSFN=2MIBDDDDDDDDMIBSFN=3MIBDDDDDDDDMIBMIBTTI 0D TDD: 1 MIB periodSFN=0MIBTTI 0SFN=1UDDMIBTTI 5SFN=2UDDMIBTTI 5SFN=3UDDMIBTTI 5SSUDDMIBSSUDDMIBSSUDDMIBSUDDMIBTTI 5SUDD
FDD: MIB of each symbolTDD: MIB of each symbolSFN=9SFN=0SFN=0SFN=1SFN=5SFN=6012301230123056012312301230123010123012301First SymL = 0PSSSecond Sym = 1SSSThird symb L = 2Fourth SymL 3First SymL = 0PSSSecond Sym = 1SSSThird symb L = 2Fourth SymL 3
i表示无线帧nf-i, ns表示slot号，l表示symbol号。下表中l表示原始的4个symbol编号，表格中的每一项表示symbol l 分别重传所在位置。
Table 6.6.4-1: Frame offset, slot and symbol number triplets for repetition of PBCH for
frame structure type 1.
l 0 1 2 3 ?,l'? Frame offset, slot and symbol number triplets ?i,nsNormal cyclic prefix Extended cyclic prefix (1,18,3), (1,19,0), (1,19,4), (0,0,4) (1,18,3), (1,19,0), (1,19,5) (1,18,4), (1,19,1). (1,19,5), (0,1,4) (1,18,4), (1,19,1). (0,0,3) (1,18,5), (1,19,2), (1,19,6), (0,1,5) (1,18,5), (1,19,2), (0,1,4) (1,18,6), (1,19,3), (0,0,3), (0,1,6) (1,19,3), (1,19,4), (0,1,5) Table 6.6.4-2: Slot and symbol number pairs for repetition of PBCH for frame structure
type 2.
l 0 1 2 3 ?,l'? Slot and symbol number pairs ?nsNormal cyclic prefix Extended cyclic prefix (0,3), (1,4), (10,3), (11,0), (11,4) (0,3), (10,3), (11,0) (0,4), (1,5), (10,4), (11,1), (11,5) (0,4), (10,4), (11,1) (0,5), (10,5), (11.2) (0,5), (10,5), (11.2) (0,6), (10,6), (11.3) (1,4), (11,3), (11.4)
相比原本定义的MIB内容，针对R13的BL/CE需要从spare域里面占用了5bit用于携带
schedulingInfoSIB1-BR-r13信息。
MasterInformationBlock ::= dl-Bandwidth phich-Config systemFrameNumber schedulingInfoSIB1-BR-r13 spare } SEQUENCE { ENUMERATED { n6, n15, n25, n50, n75, n100}, PHICH-Config, BIT STRING (SIZE (8)), INTEGER (0..31), BIT STRING (SIZE (5)) schedulingInfoSIB1-BR This field contains an index to a table that defines SystemInformationBlockType1-BR scheduling information. The table is specified in TS 36.213 [23, Table 7.1.6-1 and Table 7.1.7.2.7-1]. Value 0 means that SystemInformationBlockType1-BR is not scheduled.
4.1.3 SIB1-BR
BL/CE 的MIB除了重传情况和传统小区有区别，其他的调度以及内容都还是复用传统小区的。但BL/CE的 SIB1和SIBx则完全从原小区的调度中独立出来了，BL/CE定义了单独的SIB1-BR以取代SIB1(SIB1-BR的消息结构和SIB1是相同的)。
SIB1-BR携带的信息用于评估该UE是否被允许驻留在该小区，并且SIB1-BR包含其他SIBx的调度信息。
4.1.3.1 SIB1-BR接收子帧描述
SIB1-BR按照80ms调度周期调度，在周期内会安排多次重传，重传次数以及SIB1-BR的传输块大小都由MIB里面携带的信息schedulingInfoSIB1-BR指示。
每个SIB1-BR的80ms周期从满足条件nfmod8?0无线帧nf开始。在80ms内重传次数通过
SIB1-BRSIB1-BR查表得到为NPDSCH次，NPDSCH可以取值为0/4/8/16，如果配置是0，表示SIB1-BR没有
被传输，不需要接收。
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