PUCCH结构与配置

1、1. PUCCH概述2. PUCCH结构3. PUCCH网管配置与系统消息参数4. PUCCH容量计算 ZTE Corporation. All rights reserved.PUCCH概述物理上行控制信道PUCCH承载上行控制信息：ACK/NACK、CQI和SRI（调度请求），PUCCH和PUSCH是不会同时传输的。PUCCH支持6种格式：bitMPUCCH格式格式调制方式调制方式每子帧中包含的每子帧中包含的bitbit数数应用场景应用场景1N/AN/A上行调度请求1aBPSK1单数据块ACK/NACK1bQPSK2双数据块ACK/NACK2QPSK20CQI2aQPSK+BPSK21CQ

2、I+单数据块ACK/NACK2bQPSK+QPSK22CQI+双数据块ACK/NACK1. PUCCH概述2. PUCCH结构3. PUCCH网管配置与系统消息参数4. PUCCH容量计算 ZTE Corporation. All rights reserved.PUCCH结构-Format 1/1a/1b ZTE Corporation. All rights reserved.PUCCH结构-Format 1/1a/1b ZTE Corporation. All rights reserved.PUCCH结构-Format 2/2a/2b ZTE Corporation. All righ

3、ts reserved.PUCCH结构-Format 2/2a/2b ZTE Corporation. All rights reserved.PUCCH结构-混合模式1. PUCCH概述2. PUCCH结构3. PUCCH网管配置与系统消息参数4. PUCCH容量计算 ZTE Corporation. All rights reserved.PUCCH网管配置 ZTE Corporation. All rights reserved.PUCCH系统消息参数PUCCH-ConfigCommon :=SEQUENCE deltaPUCCH-ShiftENUMERATED ds1, ds2, ds

4、3,nRB-CQIINTEGER (0.98),nCS-ANINTEGER (0.7),n1PUCCH-ANINTEGER (0.2047)PUCCH-ConfigDedicated :=SEQUENCE ackNackRepetitionCHOICEreleaseNULL,setupSEQUENCE repetitionFactorENUMERATED n2, n4, n6, spare1,n1PUCCH-AN-RepINTEGER (0.2047)1. PUCCH概述2. PUCCH结构3. PUCCH网管配置与系统消息参数4. PUCCH容量计算 ZTE Corporation. All

5、 rights reserved.PUCCH容量计算上行PUCCH的占用的RB数计算过程如下。1.PUCCH format 1/1a/1b的循环偏移量：如果Cycle Shift Number for PUCCH Format 1/1a/1b(byPucchDeltaShf) = 1，每个RB上可复用的最大pucch format1个数为36；如果Cycle Shift Number for PUCCH Format 1/1a/1b (byPucchDeltaShf) = 2则每个RB上PUCCH format1可复用的pucch format1个数为 36/2 = 18。2.PUCCH fo

6、rmat 2/2a/2b使用的RB数：RB Number of PUCCH Format 2/2a/2b (byNumPucchCqiRB) = 23.SR信道个数：The Number of SR PUCCH (wNPucchSr) = 184.半静态分配的PUCCH Format 1的信道个数：Number of Semi Allocation Format 1 PUCCH(wNPucchSemiAn) = 185.动态分配的AN信道数与CCE个数（Ncce）相关, the Factor of PHICH Group(byNg)取1/2时，CCE个数如下表Bandwidth1.4MHz(6

7、RB)3MHz(15RB)5MHz(25RB)10MHz(50RB)15MHz（75RB）20MHz(100RB）CFI = 1024101521CFI = 22713264054CFI = 341221436587由于PUCCH在一个子帧的两个时隙中跳频，PUCCH占用的RB数是偶数，因此PUCCH占用的RB数由下式计算：CEIL( (byNumPucchCqiRB + CEIL( (Ncce + wNPucchSemiAn + wNPucchSr) / (36 / byPucchDeltaShf) ) )/2 )*2 带宽15MHz(75RB)：PUCCH占用的RB个数 = CEIL (2+CEIL (40+18+18)/(36/2), 1)/2, 1)*2 = 8 ZTE Corporation. All rights reserved.遗留问题1. Format1使用开关键控调制，但是在1a、1b中SR该如何传输？2. 按照我们后台网管的配置，如何对