cpri规范-通用公共无线接口（CPRI）规范V2.0（中文）

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【文件名】:08123@52RD_cpri-003 cpri规范v2[1]_0（中文）.pdf
【格　式】:pdf
【大　小】:1069K
【简　介】:
【目　录】:1 概念.......................................................................................................................................................5
2 系统描述...............................................................................................................................................6
2.1 定义/术语......................................................................................................................................6
2.2 系统结构.......................................................................................................................................9
2.3 相关配置.....................................................................................................................................10
2.4 功能描述.....................................................................................................................................12
2.4.1 无线功能..............................................................................................................................12
2.4.2 CPRI 控制功能....................................................................................................................13
3 接口指标............................................................................................................................................14
3.1 支持的无线标准............................................................................................................................14
3.2 操作范围.......................................................................................................................................14
3.3 拓扑结构/转换/多路技术............................................................................................................14
3.4 带宽/容量/可测性........................................................................................................................15
3.4.1 容量.......................................................................................................................................15
3.4.2 用户平台IQ采样宽度..........................................................................................................15
3.4.3 控制和管理平台BIT速率....................................................................................................15
3.5 同步/定时......................................................................................................................................16
3.5.1 频率同步...............................................................................................................................16
3.5.2 结构定时信息........................................................................................................................16
3.5.3 链路定时精确度....................................................................................................................17
3.5.4 往返延时精度........................................................................................................................17
3.6 延时校准.......................................................................................................................................17
3.6.1 单链路光缆往返延时............................................................................................................17
3.6.2 多跳连接的往返延时............................................................................................................17
3.7 链路维护.......................................................................................................................................18
3.8 QOS...............................................................................................................................................18
3.8.1 最大延时...............................................................................................................................18
3.8.2 用户平台误比特率................................................................................................................18
3.8.3 控制和管理平台误比特率....................................................................................................18
3.9 启动...............................................................................................................................................19
3.9.1 时钟启动时间........................................................................................................................19
3.9.2 即插即用...............................................................................................................................19
4 接口规范..............................................................................................................................................22
4.1 协议总结.........................................................................................................................................22
4.2 物理层（LAYER 1）规范..............................................................................................................23
4.2.1 线比特率..............................................................................................................................23
4.2.2 物理层模式..........................................................................................................................23
4.2.3 电接口.................................................................................................................................24
4.2.4 光接口.................................................................................................................................25
4.2.5 线性编码..............................................................................................................................25
4.2.6 比特纠错和检测..................................................................................................................25
4.2.7 帧结构.................................................................................................................................25
4.2.8 同步和定时..........................................................................................................................38
4.2.9 链路延时精度和电缆延时校准...........................................................................................38
4.2.10 物理层的链路维护..............................................................................................................41
4.3 慢速控制和管理（C&M）信道数据链路层（LAYER 2）规范...............................................44
4.3.1 MAC 帧结构..........................................................................................................................44
4.3.2 媒体访问控制/数据映射.......................................................................................................45
4.3.3 流控制功能............................................................................................................................45
4.3.4 数据保护/重传机制...............................................................................................................45
4.4 快速控制和管理（C&M）信道数据链路层（LAYER 2）规范...............................................45
4.4.1 MAC 帧结构..........................................................................................................................46
4.4.2 媒体访问控制/数据映射.......................................................................................................46
4.4.3 流控制功能............................................................................................................................49
4.4.4 数据保护/重传机制...............................................................................................................49
4.5 启动次序.......................................................................................................................................49
4.5.1 概述.......................................................................................................................................49
4.5.2 物理层启动定时器................................................................................................................50
4.5.3 状态描述...............................................................................................................................51
4.5.4 转换描述...............................................................................................................................57
5 互用性..................................................................................................................................................60
5.1 之前及以后版本的兼容性............................................................................................................60
5.1.1 在CPRI 固着最小控制信息的位置.....................................................................................60
5.1.2 CPRI 中的保留带宽..............................................................................................................60
5.1.3 版本号...................................................................................................................................61
5.1.4 CPRI 帧结构中的规范版本..................................................................................................61
5.2 遵从...............................................................................................................................................61
6 附录.......................................................................................................................................................62
6.1 延时校准实例（提供信息）........................................................................................................62
6.3 网络（提供信息）........................................................................................................................64
6.3.1 概念.......................................................................................................................................64
6.3.2 SAPCM 通过RE的接收与传送..........................................................................................64
6.3.3 SAPIQ通过RE 的接收与传送...........................................................................................65
6.3.4 SAPS通过RE的接收与分配..............................................................................................65
6.3.5 通过RE 信号化CPRI 物理层的接收与传送......................................................................65
6.3.6 BIT 率变换............................................................................................................................66
7 缩写表..................................................................................................................................................66
8 参考文献..............................................................................................................................................68

19519552

cpri协议是用于3G,4G基站的开放式协议接口，值得学习哦！！！[em01]

19519552

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