3GPP协议36211-850中文翻译 - 图文(3)

2019-08-29 20:54

Release 8 11 3GPP TS 36.211 V8.5.0 (2008-12)

表 5.2.3-1: 资源块参数

配置 常规CP 扩展CP RB NscUL Nsymb12 12 7 6 5.3

- - - - -

物理上行共享信道

加扰

加扰比特调制成复值符号 通过预编码转换成复值符号 复值符号映射到资源单元

在每个天线端口产生时域复值SC-FDMA 符号

Modulation mapperTransform precoderResource element mapper表征物理上行共享信道的基带信号定义如下:

ScramblingSC-FDMA signal gen.

图5.3-1: PUSCH处理过程

5.3.1 加扰

采用UE-specific加扰序列对一个子帧内的比特进行加扰。

5.3.2 调制

表5.3.2-1: PUSCH调制方案

物理信道 调制方案 PUSCH QPSK, 16QAM, 64QAM

5.3.3 转换预编码

调制复值符号d(0),...,d(Msymb?1)通过转换预编码变为同样数量的SC-FDMA符号。

5.3.4 映射到物理资源

SC-FDMA符号z(0),...,z(Msymb?1)乘以传输功率PPUSCH,以增序方式映射到资源单元(k,l),首先按k映射,然后按l继续。

5.4 物理上行控制信道PUCCH

PUCCH用于传输上行控制信息,不同与PUSCH同时传输,在TDD中,不能在UpPTS 域传输,格式如下:

3GPP

Release 8 12 3GPP TS 36.211 V8.5.0 (2008-12)

表5.4-1: PUCCH 格式

PUCCH 格式 1 1a 1b 2 2a 2b 调制方案 N/A BPSK QPSK QPSK QPSK+BPSK QPSK+QPSK 每子帧比特数Mbit N/A 1 2 20 21 22 说明 仅用于常规CP 仅用于常规CP

cell所有PUCCH格式在每个符号采用一个序列的循环位移,不同PUCCH格式采用ncs(ns,l)获得循环位移。cellncs(ns,l)是符号序号l和时隙序号ns的函数

cellncs(ns,l)?UL?ns?8l?i)?2i ?i?0c(8Nsymb7这里伪随机序列c(i) 参见7.2节,采用cinitcell初始化。 ?NID(2)(2)(1)PUCCH的物理资源取决于高层给定的参数NRB和Ncs。NRB?0 denotes the bandwidth in terms of resource

(1)blocks that are available for use by PUCCH formats 2/2a/2b transmission in each slot. The variable Ncs denotes the

number of cyclic shift used for PUCCH formats 1/1a/1b in a resource block used for a mix of formats 1/1a/1b and

(1)2/2a/2b. The value of Ncs is an integer multiple of ?PUCCH within the range of {0, 1, …, 7}, where ?PUCCH is provided shiftshift(1)by higher layers. No mixed resource block is present if Ncs?0. At most one resource block in each slot supports a mix of formats 1/1a/1b and 2/2a/2b. Resources used for transmission of PUCCH format 1/1a/1b and 2/2a/2b are

(1)??Ncs(2)(2)(1)RBRB(1)represented by the non-negative indices nPUCCH and nPUCCH?NRBNsc????(Nsc?Ncs?2), respectively.

?8?5.4.1 PUCCH 格式1,1a和1b

PUCCH格式1, information is carried by the presence/absence of transmission of PUCCH from the UE. In the remainder of this section, d(0)?1 shall be assumed for PUCCH format 1.

对于PUCCH格式1a和1b,分别发送一个或两个比特。比特块b(0),...,b(Mbit?1)调制映射成一个复值符号d(0),参见表5.4-1。

表5.4.1-1: 调制符号d(0) PUCCH 格式1a和1b

PUCCH 格式 1a b(0),...,b(Mbit?1) 0 1 00 01 10 11 d(0) 1 ?1 1 ?j j 1b ?1 )PUCCHd(0)乘以长度为Nseq?12的循环移位序列ru(,?v(n),得到

)PUCCHy(n)?d(0)?ru(,??1 v(n), n?0,1,...,Nseq)RSPUCCHPUCCH这里ru(,?。 循环移位?随着符号和时隙变化而变化。y(0),...,y(Nseq?1)通v(n)参见5.5.1节,Msc?Nseq过S(ns)加扰和正交序列wnoc(i)扩频,得到

3GPP

Release 8 13 3GPP TS 36.211 V8.5.0 (2008-12)

PUCCHPUCCHPUCCHzm'?NSF?Nseq?m?Nseq?n?S(ns)?wnoc(m)?y?n?

??这里

PUCCHm?0,...,NSF?1PUCCHn?0,...,Nseq?1

m'?0,1?1S(ns)??j??eifn'(nS)mod2?0

otherwise2PUCCHPUCCH其中常规PUCCH格式1/1a/1b中NSF?4,缩短 PUCCH格式1/1a/1b中第一个时隙NSF?4,第二个时

PUCCH隙NSF?3。正交序列wnoc(i) 由表5.4.1-2和5.4.1-3给出。n'(ns)在下面给出。

PUCCHPUCCH?1)(NSF表5.4.1-2: 正交序列w(0)?w(NSF?4)

PUCCH序列索引noc(ns) 正交序列w(0)?w(NSF?1) ????0 1 2 ??1??1??1?1?1?1? ?1?1?1? ?1?1?1? PUCCHPUCCH?1)(NSF表5.4.1-3: 正交序列w(0)?w(NSF?3)

PUCCH序列索引 noc(ns) 正交序列w(0)?w(NSF?1) ????0 1 2 ?111? 3?1?1ej2?ej4?ej4?ej2?3? ? 33(1)Resources used for transmission of PUCCH format 1, 1a and 1b are identified by a resource index nPUCCH from which

the orthogonal sequence index noc(ns) and the cyclic shift ?(ns,l) are determined according to

?n?(n)??PUCCHN??sshiftnoc(ns)??2?n?(ns)??PUCCHN??shift???for normal cyclic prefix??for extended cyclic prefix

RB?(ns,l)?2??ncs(ns,l)Nsc?ncell(n,l)??cssncs(ns,l)??cellncs(ns,l)???where

???n?(n)???n?(n)??ssPUCCHshiftPUCCHshiftRB?noc(ns)mod?PUCCHmodN?modNscshiftRB?noc(ns)2modN?modNsc??????for normal cyclic prefixfor extended cyclic prefix3GPP

Release 8 14

(1)(1)(1)PUCCH??Ncsif nPUCCH?c?Ncs?shift?N??RB?otherwise?Nsc

prefix?3normal cyclicc?? cyclic prefix?2extended3GPP TS 36.211 V8.5.0 (2008-12)

The resource indices within the two resource blocks in the two slots of a subframe to which the PUCCH is mapped are

given by

(1)??nPUCCHn?(ns)??(1)(1)PUCCHRBmodc?Nsc?PUCCH?shift?nPUCCH?c?Ncs?shift?????(1)(1)if nPUCCH?c?Ncs?PUCCHshift

otherwisefor nsmod2?0 and by

RB(1)(1)??c?n?(ns?1)?1??modcNsc?PUCCH?1?1nPUCCH?c?Ncs?PUCCHshiftshift n?(ns)??PUCCHotherwise??h/c???hmodc?N'/?shiftCCHfor nsmod2?1, where h??n'(ns?1)?d?modcN'/?PU, with d?2for normal CP and d?0for extended CP. shift???The parameter delta-PUCCH-shift ?PUCCH is provided by higher layers. shift5.4.2 PUCCH 格式2, 2a和2b

~~~b(i)??b(i)?c(i)?mod2

比特块b(0),...,b(19)通过UE专用加扰序列加扰,得到b(0),...,b(19):

这里加扰序列c(i)参见7.2节,初始化cinitcell???ns2??1??2NID?1?216?nRNTI。

??~~PUCCHb(0),...,b(19)通过QPSK调制得到复值调制符号d(0),...,d(9)。乘以长度为Nseq?12的循环移位序列

)ru(,?v(n),得到

PUCCH)z(Nseq?n?i)?d(n)?ru(,?v(i)n?0,1,...,9RBi?0,1,...,Nsc?1

)RSPUCCH这里ru(,?。 v(i)参见5.5.1节,Msc?Nseq(2)Resources used for transmission of PUCCH formats 2/2a/2b are identified by a resource index nPUCCH from which the

cyclic shift ?(ns,l) is determined according to

RB ?(ns,l)?2??ncs(ns,l)Nscwhere

cellRB ncs(ns,l)?ncs(ns,l)?n'(ns)modNSC??and

(2)RB?nPUCCHmodNscn'(ns)??(2)(1)RB?nPUCCH?Ncs?1modNsc??(2)RB(2)if nPUCCH?NscNRBotherwise

3GPP

Release 8 15 3GPP TS 36.211 V8.5.0 (2008-12)

for nsmod2?0 and by

RBRB(2)RB(2)?Nsc?n'(ns?1)?1?modNsc?1?1if nPUCCH?NscNRB n'(ns)??RB(2)RBotherwise?Nsc?2?nPUCCHmodNsc??????for nsmod2?1.

对于PUCCH格式2a 和2b(仅用于常规CP),比特b(20),...,b(Mbit?1)按照表5.4.2-1调制成复值符号d(10),用于生成 PUCCH格式2a 和2b的DM-RS。

表5.4.2-1: PUCCH 格式2a和2b 的调制符号d(10)

PUCCH格式 2a b(20),...,b(Mbit?1) 0 1 00 01 10 11 d(10) 1 ?1 1 ?j j 2b ?1

5.4.3 映射到物理资源

The block of complex-valued symbols z(i) shall be multiplied with the amplitude scaling factor ?PUCCH in order to conform to the transmit power PPUCCHspecified in Section 5.1.2.1 in [4], and mapped in sequence starting with z(0) to resource elements. PUCCH uses one resource block in each of the two slots in a subframe. Within the physical resource block used for transmission, the mapping of z(i) to resource elements ?k,l? not used for transmission of

reference signals shall be in increasing order of first k, then l and finally the slot number, starting with the first slot in the subframe.

The physical resource blocks to be used for transmission of PUCCH in slot ns is given by

nPRB??m??????2????NUL?1??m??2??RB???if ?m?nsmod2?mod2?0

if ?m?nsmod2?mod2?1where the variable m depends on the PUCCH format. For formats 1, 1a and 1b

(2)?NRB??(1)(1)?c?Ncs?PUCCHm???nPUCCHshift??RBPUCCHc?Nsc?shift????(1)(1)if nPUCCH?c?Ncs?PUCCHshift(1)???Ncs(2)??NRB???otherwise8????

prefix?3normal cyclicc?? cyclic prefix?2extendedand for formats 2, 2a and 2b

(2)RBm?nPUCCHNsc

??Mapping of modulation symbols for the physical uplink control channel is illustrated in Figure 5.4.3-1.

In case of simultaneous transmission of sounding reference signal and PUCCH format 1a or 1b, one SC-FDMA symbol

on PUCCH shall punctured.

3GPP


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