1、宁波波导股份有限公司本参考性技术文件主要起草人:张翔、徐京皓、徐菲、卓天真、吴伟 沈玮、任伟、王小泉、汤加跃本参考性技术文件2001年7月首次发布。本参考性技术文件委托无线通信标准研究组负责解释。通信标准参考性技术文件IMT-DS FDD(WCDMA) System Radio Interface Physical Layer Technical Specification:1 范围本通信参考性技术文件描述了IMT-DS FDD(WCDMA)系统的无线接口的物理层的编码与复用部分内容。它基于 3GPP制订的Release-99(2001年3月份版本)技术规范,具体对应于TS 25.212 V3
2、.5.02 引用标准下列标准所包含的条文,通过在本文件中引用而成为本文件的条文。本文件出版时,所示版本均为有效。所有标准都会被修订,使用本文件的各方应探讨使用下列标准最新版本的可能性。1 3GPP TS25.201: Physical layer General Description.2 3GPP TS25.211:Physical channels and mapping of transport channels onto physical channels (FDD)3 3GPP TS25.213:Spreading and modulation (FDD)4 3GPP TS25.21
3、4:Physical layer procedures (FDD)5 3GPP TS25.215:Physical layer Measurements (FDD)6 3GPP TS25.221:Physical channels and mapping of transport channels onto physical channels (TDD)7 3GPP TS25.222:Multiplexing and channel coding (TDD)8 3GPP TS25.223:Spreading and modulation (TDD)9 3GPP TS25.224:Physica
4、l layer procedures (TDD)10 3GPP TS25.225:Physical layer Measurements (TDD)11 3GPP TS25.302:Services Provided by the Physical Layer12 3GPP TS25.402:Synchronisation in UTRAN, Stage 23 名词与缩略语3.1 定义本规范使用了以下术语和定义:TG:传输时间减少方法中得到的连续的空时隙称为传输间隔。传输间隔包含在一或两个连续无线帧内。TGL:传输时间减少方法中得到的连续空时隙的数目称为传输间隔长度。0 TGL 14。包含传输
5、间隔第一个空时隙和最后一个空时隙的无线帧的连接帧号分别是Nfirst和Nlast,传输间隔的长度可以根据5描述的压缩模式的参数进行计算。TrCH number:传输信道号是由L2层分配给L1层,用来表示传输信道的标识符。传输信道按传输信道号的升序排列并复用成编码组合信道(CCTrCH)。3.2 符号本规范使用了以下字符:x round towards , i.e. integer such that x x x+1x round towards -, i.e. integer such that x-1 x x x absolute value of xsgn(x) signum functi
6、on, i.e. Nfirst The first slot in the TG.Nlast The last slot in the TG. Ntr Number of transmitted slots in a radio frame.除非另外说明,以下字符的含义为:i TrCH number j TFC number k Bit number l TF number m Transport block number ni Radio frame number of TrCH i. p PhCH number r Code block number I Number of TrCHs i
7、n a CCTrCH Ci Number of code blocks in one TTI of TrCH i.Fi Number of radio frames in one TTI of TrCH i. Mi Number of transport blocks in one TTI of TrCH i. Ndata,j Number of data bits that are available for the CCTrCH in a radio frame with TFC j. Number of data bits that are available for the CCTrC
8、H in a compressed radio frame with TFC j.P Number of PhCHs used for one CCTrCH.PL Puncturing Limit for the uplink. Signalled from higher layersx, Xy, Yz, Z3.3 缩略语本规范使用了以下缩写:ARQ Automatic Repeat Request 自动重发请求BCH Broadcast Channel 广播信道BER Bit Error Rate 误比特率BLER Block Error Rate 误块率BS Base Station 基站
9、CCPCH Common Control Physical Channel 公共控制物理信道CCTrCH Coded Composite Transport Channel 码组合传输信道CFN Connection Frame Number 连接帧号CRC Cyclic Redundancy Check 循环冗余较验DCH Dedicated Channel 专用信道DL Downlink (Forward Link) 下行链路(前向链路)DPCCH Dedicated Physical Control Channel 专用物理控制信道DPCH Dedicated Physical Chan
10、nel 专用物理信道DPDCH Dedicated Physical Data Channel 专用物理数据信道DS-CDMA Direct-Sequence Code Division Multiple Access 直扩码分多址DSCH Downlink Shared Channel 下行共享信道DTX Discontinuous Transmission 不连续发射FACH Forward Access Channel 前向接入信道FDD Frequency Division Duplex 频分双工FER Frame Erasure Rate, Frame Error Rate 帧删除率
11、,误帧率GF Galois Field Galois(加罗华)域MAC Medium Access Control 媒质接入控制Mcps Mega-chips per second 每秒兆码片MS Mobile Station 移动台OVSF Orthogonal Variable Spreading Factor 正交可变扩频因子PCCC Parallel Concatenated Convolutional Code 并行级联卷积码PCH Paging Channel 寻呼信道PhCH Physical Channel 物理信道PRACH Physical Random Access Ch
12、annel 物理随机接入信道RACH Random Access Channel 随机接入信道RSC Recursive Systematic Convolutional Coder 递归系统卷积编码器RX Receive 接收SCH Synchronization Channel 同步信道SF Spreading Factor 扩频因子SFN System Frame Number 系统帧号SIR Signal-to-Interference Ratio 信干比SNR Signal to Noise Ratio 信噪比TF Transport Format 传输格式TFC Transport
13、 Format Combination 传输格式组合TFCI Transport Format Combination Indicator 传输格式组合指示TPC Transmit Power Control 发射功率控制TrCH Transport Channel 传输信道TTI Transmission Timing Interval 传输时间间隔TX Transmit 发射UL Uplink (Reverse Link) 上行链路(反向链路)4. 复用、信道编码和交织4.1 概述 来自/去到MAC和高层的数据流(传输块/传输块集)将被编码/解码以在无线传输链路上提供传输服务。信道编码方案由差错检测、差错纠正、速率匹配、交织及“传输信道到物理信道的映射”和“物理信道到传输
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