系统接口技术规范层.doc

系统接口技术规范层82020年5月29日文档仅供参考IMT-DS FDD(WCDMA)系统Iub接口技术规范:层120XX-XX-XX发布 20XX-XX-XX实施中华人民共和国信息产业部科学技术司 印 发Technical Specification of IMT-DS FDD(WCDMA) SystemIub Interface :Layer 1目 次前 言II1 范围22 引用标准23 定义和缩略语34. 层134.1 概述34.2 层1描述34.3 来自高层的需求44.4 层1提供的服务44.5 到管理平面的接口5前 言 本通信标准参考性技术文件主要用于无线接入网。本文基于 3GPP制订的Release-99( 9月份 版本)技术规范,具体对应于TS 25.431 V3.0.0。本参考性技术文件由信息产业部电信研究院提出。本参考性技术文件由信息产业部电信研究院归口。本参考性技术文件起草单位:信息产业部电信传输研究所本参考性技术文件主要起草人:盛蕾、续合元、徐京皓、徐菲本参考性技术文件 1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)系统Iub 接口技术规范:层1Technical Specification of IMT-DS FDD(WCDMA)System Iub Interface:Layer 1 1 范围本参考性技术文件规定了Iub接口技术规范的物理层实现部分Page: 1范围要素应写成一系列事实的说明。应使用如下所示的表述格式: 本标准规定了(的尺寸;的方法;的特性)或 本标准确立了(的体系;的基本原则)或 本标准给出了(的指南)或 本标准确定了(的术语)对标准适用性的说明应由下列措辞开头:本标准适用于,它基于 3GPP制订的Release-99( 9月份版本)技术规范,具体对应于TS 25.430 V3.0.0。2 引用标准下列标准所包含的条文,经过在本标准中引用而成为本标准的条文。本标准出版时,所示版本均为有效。所有标准都会被修订,使用本标准的各方应探讨使用下列标准最新版本的可能性。1ITU-T Recommendation I.432.2 (8/96): ISDN User-Network interfaces, Layer 1 Recommendations, 155 520kbit/s and 622 080 kbit/s operation.2ITU-T Recommendation I.432.3 (8/96): ISDN User-Network interfaces, Layer 1 Recommendations, 1544kbit/s and 2048 kbit/s operation.3ITU-T Recommendation G.703 (10/98): Physical/electrical characteristics of hierarchical digital interfaces.4ITU-T Recommendation G.704 (10/98): Synchronous frame structures used at 1544, 6312, 2048, 8448 and 44 736 kbit/s hierarchical levels.5ITU-T Recommendation G.957 (7/95): Optical interfaces for equipments and systems relating to the synchronous digital hierarchy.6ITU-T Recommendation I.432.1 (8/96): ISDN User-Network interfaces, Layer 1 Recommendations, General characteristics.7ITU-T Recommendation G.823 (3/93): The control of jitter and wander within digital networks which are based on the 2048 kbit/s hierarchy.8ITU-T Recommendation G.824 (3/93): The control of jitter and wander within digital networks which are based on the 1544 kbit/s hierarchy.9ITU-T Recommendation G.825 (3/93): The control of jitter and wander within digital networks which are based on the synchronous digital hierarchy (SDH).10ITU-T Recommendation G.826 (8/96): Error performance parameters and objectives for international, constant bit rate digital paths at or above the primary rate.11ITU-T Recommendation I.361 (11/95): B-ISDN ATM layer specification.12ATM Forum AF-PHY-0016.000 (9/94): DS1 Physical Layer Specification.13ATM Forum AF-PHY-0064.000 (9/96): E1 Physical Layer Interface Specification.14ATM Forum AF-PHY-0086.001 (2/99): Inverse Multiplexing for ATM (IMA) Specification Version 1.1.15ITU-T Recommendation G.751 (11/88): Digital multiplex equipments operating at the third order bit rate of 34 368 kbit/s and the fourth order bit rate of 139 264 kbit/s and using positive justification.16ATM Forum AF-PHY-0130.00 (10/99): ATM on Fractional E1/T1.3 定义和缩略语ATMAsynchronous Transfer Mode 异步传输格式BERBit Error Rate 比特差错率IMAInverse Multiplexing on ATM ATM反向复用PDHPlesiochronous Digital Hierarchy Plesiochronous数字等级PMDPhysical Media Dependent 物理介质独立SDHSynchronous Digital Hierarchy 同步数字等级SDUService Data Unit 业务数据单元TCTransmission Convergence 传输集中4. 层14.1 概述层1的主要功能如下所示:- 到物理介质的接口;- 小区的描述;- 线性时钟提取能力;- 层1告警的提取和产生;- 顺序的传递;- 质量控制的传输。4.2 层1描述层1的参考配置应与IUT-T建议I.432.1一致:物理层分成:- 物理媒质独立(PMI)子层;- 传输集中(TC)子层,由ITU-T建议I.432.1定义。PMD应至少符合下面一种标准:- ETSI STM-4 (622 Mb/s) interface according to I.432.2 1 with optical S-1.1 interface according to G.957 5.- SONET STS-12c (622 Mb/s) interface according to ANSI, T1.105-1995 with optical multimode.- SONET STS-3c (155 Mb/s) interface according to ANSI, T1.105-1995 with optical multimode.- ETSI STM-1 (155 Mb/s) interface according to I.432.2 1 with electrical interface (CMI) to G.703 3.- ETSI STM-1 (155 Mb/s) interface according to I.432.2 1 with optical S-1.1 interface according to G.957 5.- ITU STS-1 (51 Mb/s) interface according to ANSI, T1.105-1995 with electrical interface.- ITU STM-0 (51 Mb/s) interface according to ETSI/TTC with electrical interface.- ITU STM-0 (51 Mb/s) interface according to ETSI/TTC with optical S-1.1 interface according G.957 5.- J2, 6.3 Mb/s interface according to Japanese standard JT-G.703 3 and JT-G.704 4 (75 Ohm).注:J2要求基于G.804.中的映射按HEC将ATM信元对应到物理层。E2, 8Mb/s according to ETSI/ITU G.703 3 and G.704 4 (75 Ohm).- E3, 34 Mb/s interface according to ETSI/ITU G.751 13 (75 Ohm).- T3, 45 Mb/s interface according to ANSI/ITU G.703 3 and G.704 4 (75 Ohm).- E1, 2Mb/s interface balanced 120 Ohm symmetrical according to ETS 300 420, ITU-T G.704 4 and TBR 013 (G.703) 3, and AF-PHY-0064.000 11- E1, 2Mb/s according to ETSI/ITU G.703 3 and G.704 4 (75 Ohm), and AF-PHY-0064.000 13.- J1, 1.5 Mb/s interface according to Jt-431-a (100 Ohm).- J1, 1.5 Mb/s interface according to JT-G.703 3 and JT-G.704 4 (110 Ohm).- T1, 1.5 Mb/s interface according to AF-PHY-0016.000 10 and ANSI/ITU G.703 3 and G.704 4 (100 Ohm).提供到高层的服务应与所用的技术相独立。对传送网络的干涉的支持-如PDH或SDH陆地链路、点到点或点到多点无线链路-不应被禁止。在I.432.1中描述的”ATM on Fractional E1/T1”领域内,能够使用n个64kbit/s时隙,允许该接口与其它接口在同一物理介质上共存。当使用E1、T1或J1时,能够在相关的交换终止(ET)上的物理端口的适当子集内使用ATM(IMA)的反向复用。时钟的稳定度需求应满足G.823或G.824或G.825 。从Iur处提取的时钟将用作UTRAN的参考时钟。传输质量控制应根据ITU-T建议G.826来提供。4.3 来自高层的需求没有特别的需求,与4.1节中的概述一致。4.4 层1提供的服务根据IUT-T I.361,物理层经过物理业务接入点(PHY-SAP)提供的到高层的服务如下图所示:图1: 物理层和ATM层间的SAP根据ITU-T I.361 , 第3.2节, 将在PHY-SAP上提供下面的原语:- PHY-DATA请求(PHY-SDU);- PHY-DATA指示(PHY-SDU)。参数PHY-SDU包括一个由ITU-T I.361定义的在物理介质上发送或接收的ATM信元。 - PHY-DATA 请求 (PHY-SDU);4.5 到管理平面的接口到管理平面的接口不在本规范内规定,下面简要地描述一下:- 性能管理功能;- 告警状态报告功能;- 同步源管理。