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首页3GPP E-UTRA与E-UTRAN: 空口信令与移动性管理规范
"3GPPTS36.300V15.9.0(2020-03)" 是一份3GPP发布的技术规范文档,主要关注3GPP的无线接入网络(Radio Access Network, RAN)的演进技术,即Evolved Universal Terrestrial Radio Access (E-UTRA) 和 Evolved Universal Terrestrial Radio Access Network (E-UTRAN)。该文档在3GPP的第15个发布版本中提供了第二阶段(Stage 2)的总体描述,涵盖了网络架构和无线接口的关键层面。
这份规范详细阐述了E-UTRA和E-UTRAN的多个层次,包括:
1. 物理层(Physical Layer):定义了无线传输的物理特性,如频率分配、调制方式、信道编码以及多址接入方式,如正交频分复用(OFDM)等。物理层处理信号的发射和接收,包括射频信号的处理、信道估计、功率控制等。
2. 链路适配层(Medium Access Control, MAC):负责调度数据传输,处理多个用户之间的资源分配,实现不同服务等级的公平性,并处理错误检测和纠正。
3. 无线电链路控制层(Radio Link Control, RLC):提供可靠的数据传输服务,包括分段、重组和确认机制,以确保数据包的完整性和正确顺序。
4. 分组数据会聚协议层(Packet Data Convergence Protocol, PDCP):在无线网络中处理IP数据包,执行头压缩以减少无线传输中的开销,并提供安全功能,如加密和完整性保护。
5. 无线资源控制层(Radio Resource Control, RRC):管理UE(用户设备)与网络之间的信令交互,负责建立、维护和释放RRC连接,以及移动性管理,包括小区重选和小区切换。RRC连接建立是用户设备进入网络服务的第一步,涉及初始接入过程和连接请求的处理。
6. 移动性管理:小区重选是UE在不同小区间自动选择最佳服务的过程,而小区切换则是UE在保持业务连续性的情况下,从一个小区迁移到另一个更合适的小区。
这份文档是3GPP组织内部开发的,尚未经过3GPP组织伙伴的正式批准,仅用于3GPP未来的发展工作。虽然未经官方认可,但3GPP的技术规范对于理解和实现E-UTRA和E-UTRAN系统至关重要,是相关实施者获取标准信息的主要来源。
关键词:LTE(Long-Term Evolution)、E-UTRAN、Stage 2、无线架构。此规范适用于那些希望深入理解4G LTE网络技术以及与之相关的空口信令和移动性管理的读者。
15.10.2 Counting Procedure.............................................................................................................................................195
15.11 MBMS service reception using Receive Only Mode.....................................................................................195
16 Radio Resource Management aspects..............................................................................................195
16.0 General.............................................................................................................................................................195
16.1 RRM functions.................................................................................................................................................195
16.1.1 Radio Bearer Control (RBC).................................................................................................................................195
16.1.2 Radio Admission Control (RAC)..........................................................................................................................196
16.1.3 Connection Mobility Control (CMC)....................................................................................................................196
16.1.4 Dynamic Resource Allocation (DRA) - Packet Scheduling (PS)..........................................................................196
16.1.5 Inter-cell Interference Coordination (ICIC)...........................................................................................................196
16.1.5.0 General 196
16.1.5.1 UE configurations for time domain ICIC...........................................................................................................197
16.1.5.2 OAM requirements for time domain ICIC.........................................................................................................197
16.1.5.2.1 Configuration for CSG cell..............................................................................................................................197
16.1.5.2.2 Configuration for interfering non-CSG cell....................................................................................................197
16.1.6 Load Balancing (LB).............................................................................................................................................198
16.1.7 Inter-RAT Radio Resource Management..............................................................................................................198
16.1.8 Subscriber Profile ID for RAT/Frequency Priority...............................................................................................198
16.1.9 Inter-eNB CoMP....................................................................................................................................................198
16.1.10 Cell on/off and cell discovery..............................................................................................................................198
16.2 RRM architecture.............................................................................................................................................199
16.2.1 Centralised Handling of certain RRM Functions..................................................................................................199
16.2.2 De-Centralised RRM.............................................................................................................................................199
16.2.2.1 UE History Information......................................................................................................................................199
16.2.3 Void 199
16.3 UE assistance information for RRM, and UE power optimisations and UE overheating...............................199
17 Void................................................................................................................................................. 200
17.1 Void 200
18 UE capabilities.................................................................................................................................200
19 S1 Interface......................................................................................................................................201
19.1 S1 User plane...................................................................................................................................................201
19.2 S1 Control Plane..............................................................................................................................................202
19.2.0 General...................................................................................................................................................................202
19.2.1 S1 Interface Functions...........................................................................................................................................203
19.2.1.0 General 203
19.2.1.1 S1 Paging function..............................................................................................................................................204
19.2.1.2 S1 UE Context Management function................................................................................................................204
19.2.1.3 Initial Context Setup Function............................................................................................................................204
19.2.1.3a UE Context Modification Function..................................................................................................................204
19.2.1.3b UE Context Resume Function..........................................................................................................................204
19.2.1.4 Mobility Functions for UEs in ECM-CONNECTED.........................................................................................204
19.2.1.4.1 Intra-LTE Handover........................................................................................................................................204
19.2.1.4.2 Inter-3GPP-RAT Handover............................................................................................................................204
19.2.1.5 E-RAB Service Management function...............................................................................................................205
19.2.1.6 NAS Signalling Transport function....................................................................................................................205
19.2.1.7 NAS Node Selection Function (NNSF)..............................................................................................................205
19.2.1.8 S1-interface management functions...................................................................................................................205
19.2.1.9 MME Load balancing Function..........................................................................................................................205
19.2.1.10 Location Reporting Function............................................................................................................................206
19.2.1.11 Warning Message Transmission function........................................................................................................206
19.2.1.12 Overload Function............................................................................................................................................206
19.2.1.13 RAN Information Management Function.........................................................................................................206
19.2.1.14 S1 CDMA2000 Tunnelling function................................................................................................................206
19.2.1.15 Configuration Transfer Function......................................................................................................................206
19.2.1.16 LPPa Signalling Transport function.................................................................................................................206
19.2.1.17 Trace Function..................................................................................................................................................206
19.2.1.18 UE Radio Capability Match..............................................................................................................................206
19.2.1.19 Retrieve UE Information Function...................................................................................................................206
19.2.1.20 UE Information Transfer Function...................................................................................................................206
3GPP
3GPP TS 36.300 V15.9.0 (2020-03)11Release 15
19.2.1.21 Report of Secondary RAT data volumes Function...........................................................................................206
19.2.2 S1 Interface Signalling Procedures........................................................................................................................207
19.2.2.0 General 207
19.2.2.1 Paging procedure................................................................................................................................................207
19.2.2.2 S1 UE Context Release procedure......................................................................................................................207
19.2.2.2.0 General 207
19.2.2.2.1 S1 UE Context Release (EPC triggered).........................................................................................................207
19.2.2.2.2 S1 UE Context Release Request (eNB triggered)...........................................................................................208
19.2.2.3 Initial Context Setup procedure..........................................................................................................................208
19.2.2.3a UE Context Modification procedure.................................................................................................................209
19.2.2.4 E-RAB signalling procedures.............................................................................................................................210
19.2.2.4.1 E-RAB Setup procedure..................................................................................................................................210
19.2.2.4.2 E-RAB Modification procedure......................................................................................................................211
19.2.2.4.3 E-RAB Release procedure...............................................................................................................................212
19.2.2.4.4 E-RAB Release Indication procedure..............................................................................................................212
19.2.2.4.5 E-RAB Modification Indication procedure.....................................................................................................213
19.2.2.5 Handover signalling procedures.........................................................................................................................213
19.2.2.5.0 General 213
19.2.2.5.1 Handover Preparation procedure.....................................................................................................................213
19.2.2.5.2 Handover Resource Allocation procedure.......................................................................................................214
19.2.2.5.3 Handover Notification procedure....................................................................................................................215
19.2.2.5.4 Handover Cancellation....................................................................................................................................215
19.2.2.5.5 Path Switch procedure.....................................................................................................................................215
19.2.2.5.6 Message sequence diagrams............................................................................................................................216
19.2.2.5.7 eNB Status Transfer procedure........................................................................................................................224
19.2.2.5.8 MME Status Transfer procedure.....................................................................................................................225
19.2.2.6 NAS transport procedures...................................................................................................................................225
19.2.2.7 S1 interface Management procedures.................................................................................................................228
19.2.2.7.1 Reset procedure...............................................................................................................................................228
19.2.2.7.1a eNB initiated Reset procedure.......................................................................................................................228
19.2.2.7.1b MME initiated Reset procedure.....................................................................................................................229
19.2.2.7.2 Error Indication functions and procedures......................................................................................................229
19.2.2.7.2a eNB initiated error indication........................................................................................................................229
19.2.2.7.2b MME initiated error indication......................................................................................................................229
19.2.2.8 S1 Setup procedure.............................................................................................................................................229
19.2.2.9 eNB Configuration Update procedure................................................................................................................230
19.2.2.9a eNB Configuration Transfer procedure............................................................................................................231
19.2.2.10 MME Configuration Update procedure............................................................................................................231
19.2.2.10a MME Configuration Transfer procedure........................................................................................................232
19.2.2.11 Location Reporting procedures.........................................................................................................................232
19.2.2.11.0 General 232
19.2.2.11.1 Location Reporting Control procedure..........................................................................................................233
19.2.2.11.2 Location Report procedure............................................................................................................................233
19.2.2.11.3 Location Report Failure Indication procedure...............................................................................................233
19.2.2.12 Overload procedure..........................................................................................................................................234
19.2.2.12.1 Overload Start procedure...............................................................................................................................234
19.2.2.12.2 Overload Stop procedure...............................................................................................................................234
19.2.2.13 Write-Replace Warning procedure...................................................................................................................235
19.2.2.14 eNB Direct Information Transfer procedure....................................................................................................235
19.2.2.15 MME Direct Information Transfer procedure..................................................................................................236
19.2.2.16 S1 CDMA2000 Tunnelling procedures............................................................................................................236
19.2.2.16.1 Downlink S1 CDMA2000 Tunnelling procedure..........................................................................................236
19.2.2.16.2 Uplink S1 CDMA2000 Tunnelling procedure..............................................................................................236
19.2.2.17 Kill procedure...................................................................................................................................................237
19.2.2.18 LPPa Transport procedures...............................................................................................................................237
19.2.2.18.0 General 237
19.2.2.18.1 Downlink UE Associated LPPa Transport procedure...................................................................................237
19.2.2.18.2 Uplink UE Associated LPPa Transport procedure........................................................................................238
19.2.2.18.3 Downlink Non UE Associated LPPa Transport procedure...........................................................................238
19.2.2.18.4 Uplink Non UE Associated LPPa Transport procedure................................................................................238
19.2.2.19 Trace procedures...............................................................................................................................................239
3GPP
3GPP TS 36.300 V15.9.0 (2020-03)12Release 15
19.2.2.19.0 General 239
19.2.2.19.1 Trace Start procedure.....................................................................................................................................239
19.2.2.19.2 Trace Failure Indication procedure................................................................................................................239
19.2.2.19.3 Deactivate Trace procedure...........................................................................................................................240
19.2.2.19.4 Cell Traffic Trace procedure.........................................................................................................................240
19.2.2.20 UE Capability Info Indication procedure.........................................................................................................240
19.2.2.21 UE Radio Capability Match procedure.............................................................................................................241
19.2.2.22 PWS Restart Indication procedure....................................................................................................................241
19.2.2.23 PWS Failure Indication procedure....................................................................................................................241
19.2.2.24 UE Context Modification Indication procedure...............................................................................................242
19.2.2.25 Connection Establishment Indication procedure..............................................................................................242
19.2.2.26 UE Context Suspend procedure........................................................................................................................243
19.2.2.27 UE Context Resume procedure........................................................................................................................243
19.2.2.28 Retrieve UE Information procedure.................................................................................................................244
19.2.2.29 UE Information Transfer procedure.................................................................................................................244
19.2.2.30 eNB CP Relocation Indication..........................................................................................................................244
19.2.2.31 MME CP Relocation Indication.......................................................................................................................245
19.2.2.32 Secondary RAT Report.....................................................................................................................................245
20 X2 Interface......................................................................................................................................246
20.1 User Plane........................................................................................................................................................246
20.1.1 Flow Control Functions.........................................................................................................................................246
20.2 Control Plane....................................................................................................................................................246
20.2.0 X2-CP Overview...................................................................................................................................................246
20.2.1 X2-CP Functions...................................................................................................................................................247
20.2.2 X2-CP Procedures.................................................................................................................................................248
20.2.2.0 Overview of X2-CP procedures..........................................................................................................................248
20.2.2.1 Handover Preparation procedure........................................................................................................................248
20.2.2.2 Handover Cancel procedure...............................................................................................................................249
20.2.2.2a SeNB Addition Preparation procedure.............................................................................................................249
20.2.2.2b SeNB Reconfiguration Completion procedure.................................................................................................249
20.2.2.2c MeNB initiated SeNB Modification Preparation procedure.............................................................................250
20.2.2.2d SeNB initiated SeNB Modification procedure.................................................................................................250
20.2.2.2e MeNB initiated SeNB Release procedure.........................................................................................................251
20.2.2.2f SeNB initiated SeNB Release procedure..........................................................................................................251
20.2.2.2g SeNB Counter Check procedure.......................................................................................................................251
20.2.2.3 UE Context Release procedure...........................................................................................................................252
20.2.2.4 SN Status Transfer procedure.............................................................................................................................252
20.2.2.5 Error Indication procedure..................................................................................................................................254
20.2.2.6 Load Indication procedure..................................................................................................................................254
20.2.2.7 X2 Setup procedure............................................................................................................................................255
20.2.2.8 eNB Configuration Update procedure................................................................................................................255
20.2.2.9 Reset procedure..................................................................................................................................................256
20.2.2.10 Resource Status Reporting Initiation procedure...............................................................................................257
20.2.2.11 Resource Status Reporting procedure...............................................................................................................257
20.2.2.12 Radio Link Failure Indication procedure..........................................................................................................257
20.2.2.13 Handover Report procedure..............................................................................................................................258
20.2.2.14 Mobility Settings Change procedure................................................................................................................258
20.2.2.15 Cell Activation procedure.................................................................................................................................259
20.2.2.16 X2 Release procedure.......................................................................................................................................259
20.2.2.17 X2AP Message Transfer procedure..................................................................................................................260
20.2.2.18 X2 Removal procedure.....................................................................................................................................260
20.2.2.19 Retrieve UE Context.........................................................................................................................................260
20.2.2.20 SgNB Addition Preparation procedure.............................................................................................................262
20.2.2.21 SgNB Reconfiguration Completion procedure.................................................................................................263
20.2.2.22 MeNB initiated SgNB Modification Preparation procedure............................................................................263
20.2.2.23 SgNB initiated SgNB Modification Preparation procedure.............................................................................263
20.2.2.24 MeNB initiated SgNB Release procedure........................................................................................................264
20.2.2.25 SgNB initiated SgNB Release procedure.........................................................................................................264
20.2.2.26 SgNB initiated SgNB Change procedure.........................................................................................................264
20.2.2.27 SgNB Counter Check procedure......................................................................................................................265
20.2.2.28 EN-DC X2 Setup procedure.............................................................................................................................265
3GPP
3GPP TS 36.300 V15.9.0 (2020-03)13Release 15
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