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首页3GPP Release 14 NAS协议详细规范:EPS阶段3下载指南
本资源是3GPP(3rd Generation Partnership Project,第三代合作伙伴计划)组织发布的关于LTE(Long-Term Evolution,长期演进)非接入层(Non-Access Stratum,NAS)协议的技术规格文档,版本为3GPPTS 24.301 V14.4.0,发布日期为2017年6月。NAS协议在4G移动通信系统(EPS,Evolved Packet System)中扮演关键角色,它负责用户设备(User Equipment,UE)与网络之间的信令交互,包括鉴权、会话管理以及数据传输等关键功能。
在LTE网络中,NAS协议是连接用户设备与核心网(Core Network)之间的重要桥梁,它位于应用层和无线接入网(Radio Access Network,RAN)之间的第三层,也就是Layer 3。NAS协议在以下场景中发挥重要作用:
1. **接入和注册**:UE在连接到网络时,需要通过NAS进行初始接入请求(Attach Request),并在成功后获得网络分配的身份(IMSI或SUPI)和承载上下文。
2. **安全和鉴权**:NAS协议负责实现用户身份验证,包括SIM卡的鉴权过程,确保只有合法用户能访问网络服务。
3. **会话管理**:UE与网络之间的会话管理,包括建立、修改和释放会话,如承载控制(Bearer Control)和切换管理。
4. **移动性管理**:UE在移动过程中,NAS协议处理位置更新(Location Update)、路由区更新(RAU)等移动性相关操作。
5. **数据传输**:虽然NAS主要关注信令层面,但间接地支持用户数据的传输,例如承载建立(Bearer Activation)和数据通知。
值得注意的是,这份文档是3GPP的一个阶段3(Stage 3)规范,这意味着它是对之前版本的继承和发展,可能包含了一些增强和改进,旨在提升系统的效率和安全性。然而,由于资源指出是旧版且未经过3GPP组织的正式批准,因此不建议直接用于实际网络部署,而是作为3GPP未来开发工作的基础资料。
获取3GPP系统实施所需的完整规格和报告,应通过3GPP组织的官方出版机构。3GPP的联系方式也列在文档末尾,如支持办公室地址、电话、传真和互联网网址。
这份NAS协议规范对于理解和设计4G LTE网络的接入层至关重要,但它主要用于学术研究和标准制定,而不是直接的网络实施指南。
3GPP
3GPP TS 24.301 V14.4.0 (2017-06)
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Release 14
8.3.21 PDN disconnect reject .............................................................................................................................................. 352
8.3.21.1 Message definition.............................................................................................................................................. 352
8.3.21.2 Protocol configuration options ......................................................................................................................... 353
8.3.21.3 Extended protocol configuration options........................................................................................................ 353
8.3.22 PDN disconnect request ........................................................................................................................................... 353
8.3.22.1 Message definition.............................................................................................................................................. 353
8.3.22.2 Protocol configuration options ......................................................................................................................... 354
8.3.22.3 Extended protocol configuration options........................................................................................................ 354
8.3.23 Remote UE report ..................................................................................................................................................... 354
8.3.23.1 Message definition.............................................................................................................................................. 354
8.3.23.2 Remote UE Context Connected ....................................................................................................................... 355
8.3.23.3 Remote UE Context Disconnected .................................................................................................................. 355
8.3.23.4 ProSe Key Management Function Address.................................................................................................... 355
8.3.24 Remote UE report response..................................................................................................................................... 355
8.3.24.1 Message definition.............................................................................................................................................. 355
8.3.25 ESM DATA TRANSPORT .................................................................................................................................... 356
8.3.25.1 Message definition.............................................................................................................................................. 356
8.3.25.2 Release assistance indication ............................................................................................................................ 356
9 General message format and information elements coding ............................................................ 357
9.1 Overview........................................................................................................................................................................... 357
9.2 Protocol discriminator .................................................................................................................................................... 358
9.3 Security header type and EPS bearer identity............................................................................................................. 358
9.3.1 Security header type ................................................................................................................................................. 358
9.3.2 EPS bearer identity ................................................................................................................................................... 359
9.4 Procedure transaction identity ....................................................................................................................................... 359
9.5 Message authentication code ......................................................................................................................................... 359
9.6 Sequence number............................................................................................................................................................. 359
9.7 NAS message ................................................................................................................................................................... 360
9.8 Message type .................................................................................................................................................................... 360
9.9 Other information elements ........................................................................................................................................... 361
9.9.1 General ........................................................................................................................................................................ 361
9.9.2 Common information elements .............................................................................................................................. 362
9.9.2.0 Additional information....................................................................................................................................... 362
9.9.2.0A Device properties ................................................................................................................................................ 362
9.9.2.1 EPS bearer context status .................................................................................................................................. 362
9.9.2.2 Location area identification............................................................................................................................... 363
9.9.2.3 Mobile identity .................................................................................................................................................... 363
9.9.2.4 Mobile station classmark 2................................................................................................................................ 363
9.9.2.5 Mobile station classmark 3................................................................................................................................ 363
9.9.2.6 NAS security parameters from E-UTRA........................................................................................................ 363
9.9.2.7 NAS security parameters to E-UTRA ............................................................................................................. 364
9.9.2.8 PLMN list............................................................................................................................................................. 365
9.9.2.9 Spare half octet.................................................................................................................................................... 365
9.9.2.10 Supported codec list ........................................................................................................................................... 365
9.9.3 EPS Mobility Management (EMM) information elements................................................................................ 365
9.9.3.0A Additional update result..................................................................................................................................... 365
9.9.3.0B Additional update type ....................................................................................................................................... 366
9.9.3.1 Authentication failure parameter...................................................................................................................... 367
9.9.3.2 Authentication parameter AUTN ..................................................................................................................... 367
9.9.3.3 Authentication parameter RAND..................................................................................................................... 367
9.9.3.4 Authentication response parameter.................................................................................................................. 367
9.9.3.4A Ciphering key sequence number ...................................................................................................................... 368
9.9.3.4B SMS services status ............................................................................................................................................ 368
9.9.3.5 CSFB response .................................................................................................................................................... 369
9.9.3.6 Daylight saving time .......................................................................................................................................... 369
9.9.3.7 Detach type .......................................................................................................................................................... 369
9.9.3.8 DRX parameter ................................................................................................................................................... 370
9.9.3.9 EMM cause .......................................................................................................................................................... 370
3GPP
3GPP TS 24.301 V14.4.0 (2017-06)
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Release 14
9.9.3.10 EPS attach result ................................................................................................................................................. 371
9.9.3.11 EPS attach type.................................................................................................................................................... 372
9.9.3.12 EPS mobile identity ............................................................................................................................................ 372
9.9.3.12A EPS network feature support ............................................................................................................................ 374
9.9.3.13 EPS update result ................................................................................................................................................ 377
9.9.3.14 EPS update type .................................................................................................................................................. 378
9.9.3.15 ESM message container..................................................................................................................................... 379
9.9.3.16 GPRS timer .......................................................................................................................................................... 379
9.9.3.16A GPRS timer 2....................................................................................................................................................... 379
9.9.3.16B GPRS timer 3....................................................................................................................................................... 379
9.9.3.17 Identity type 2...................................................................................................................................................... 379
9.9.3.18 IMEISV request .................................................................................................................................................. 379
9.9.3.19 KSI and sequence number ................................................................................................................................. 379
9.9.3.20 MS network capability ....................................................................................................................................... 380
9.9.3.20A MS network feature support.............................................................................................................................. 380
9.9.3.21 NAS key set identifier........................................................................................................................................ 380
9.9.3.22 NAS message container ..................................................................................................................................... 381
9.9.3.23 NAS security algorithms ................................................................................................................................... 381
9.9.3.24 Network name ..................................................................................................................................................... 382
9.9.3.24A Network resource identifier container ............................................................................................................. 382
9.9.3.25 Nonce .................................................................................................................................................................... 382
9.9.3.25A Paging identity..................................................................................................................................................... 383
9.9.3.26 P-TMSI signature................................................................................................................................................ 383
9.9.3.26A Extended EMM cause ........................................................................................................................................ 383
9.9.3.27 Service type.......................................................................................................................................................... 384
9.9.3.28 Short MAC........................................................................................................................................................... 385
9.9.3.29 Time zone............................................................................................................................................................. 385
9.9.3.30 Time zone and time ............................................................................................................................................ 386
9.9.3.31 TMSI status.......................................................................................................................................................... 386
9.9.3.32 Tracking area identity ........................................................................................................................................ 386
9.9.3.33 Tracking area identity list .................................................................................................................................. 387
9.9.3.34 UE network capability ....................................................................................................................................... 391
9.9.3.35 UE radio capability information update needed ............................................................................................ 395
9.9.3.36 UE security capability ........................................................................................................................................ 396
9.9.3.37 Emergency Number List.................................................................................................................................... 399
9.9.3.38 CLI......................................................................................................................................................................... 399
9.9.3.39 SS Code ................................................................................................................................................................ 400
9.9.3.40 LCS indicator....................................................................................................................................................... 400
9.9.3.41 LCS client identity.............................................................................................................................................. 401
9.9.3.42 Generic message container type ....................................................................................................................... 401
9.9.3.43 Generic message container................................................................................................................................ 402
9.9.3.44 Voice domain preference and UE's usage setting ......................................................................................... 402
9.9.3.45 GUTI type ............................................................................................................................................................ 402
9.9.3.46 Extended DRX parameters................................................................................................................................ 403
9.9.3.47 Control plane service type ................................................................................................................................. 403
9.9.3.48 DCN-ID ................................................................................................................................................................ 404
9.9.3.49 Non-3GPP access provided emergency numbers policy ............................................................................. 404
9.9.3.50 Hash
MME
................................................................................................................................................................ 404
9.9.3.51 Replayed NAS message container ................................................................................................................... 404
9.9.4 EPS Session Management (ESM) information elements ................................................................................... 405
9.9.4.1 Access point name .............................................................................................................................................. 405
9.9.4.2 APN aggregate maximum bit rate.................................................................................................................... 405
9.9.4.2A Connectivity type ................................................................................................................................................ 407
9.9.4.3 EPS quality of service ........................................................................................................................................ 407
9.9.4.4 ESM cause............................................................................................................................................................ 412
9.9.4.5 ESM information transfer flag .......................................................................................................................... 414
9.9.4.6 Linked EPS bearer identity ............................................................................................................................... 414
9.9.4.7 LLC service access point identifier ................................................................................................................. 415
9.9.4.7A Notification indicator ......................................................................................................................................... 415
3GPP
3GPP TS 24.301 V14.4.0 (2017-06)
18
Release 14
9.9.4.8 Packet flow identifier ......................................................................................................................................... 416
9.9.4.9 PDN address ........................................................................................................................................................ 416
9.9.4.10 PDN type .............................................................................................................................................................. 417
9.9.4.11 Protocol configuration options ......................................................................................................................... 418
9.9.4.12 Quality of service................................................................................................................................................ 418
9.9.4.13 Radio priority....................................................................................................................................................... 418
9.9.4.13A Re-attempt indicator ........................................................................................................................................... 418
9.9.4.14 Request type......................................................................................................................................................... 419
9.9.4.15 Traffic flow aggregate description................................................................................................................... 419
9.9.4.16 Traffic flow template.......................................................................................................................................... 419
9.9.4.17 Transaction identifier ......................................................................................................................................... 419
9.9.4.18 WLAN offload acceptability............................................................................................................................. 419
9.9.4.19 NBIFOM container............................................................................................................................................. 420
9.9.4.20 Remote UE context list ...................................................................................................................................... 420
9.9.4.21 PKMF address ..................................................................................................................................................... 423
9.9.4.22 Header compression configuration .................................................................................................................. 423
9.9.4.23 Control plane only indication ........................................................................................................................... 426
9.9.4.24 User data container ............................................................................................................................................. 426
9.9.4.25 Release assistance indication ............................................................................................................................ 427
9.9.4.26 Extended protocol configuration options........................................................................................................ 427
9.9.4.27 Header compression configuration status ....................................................................................................... 428
9.9.4.28 Serving PLMN rate control ............................................................................................................................... 429
10 List of system parameters ........................................................................................................... 429
10.1 General .............................................................................................................................................................................. 429
10.2 Timers of EPS mobility management .......................................................................................................................... 430
10.3 Timers of EPS session management ............................................................................................................................ 437
Annex A (informative): Cause values for EPS mobility management ........................................ 439
A.1 Causes related to UE identification .............................................................................................. 439
A.2 Cause related to subscription options ........................................................................................... 439
A.3 Causes related to PLMN specific network failures and congestion/authentication failures ............... 440
A.4 Causes related to nature of request .............................................................................................. 441
A.5 Causes related to invalid messages .............................................................................................. 441
Annex B (informative): Cause values for EPS session management .......................................... 443
B.1 Causes related to nature of request .............................................................................................. 443
B.2 Protocol errors (e.g., unknown message) class.............................................................................. 446
Annex C (normative): Storage of EMM information............................................................... 447
Annex D (normative): Establishment cause (S1 mode only) .................................................... 448
D.1 Mapping of NAS procedure to RRC establishment cause (S1 mode only) ...................................... 448
Annex E (informative): Guidelines for enhancements to MS network capability IE and UE
network capability IE .......................................................................... 457
Annex F (normative): Application specific Congestion control for Data Communication
(ACDC)................................................................................................ 458
Annex G (informative): Change history..................................................................................... 459
3GPP
3GPP TS 24.301 V14.4.0 (2017-06)
19
Release 14
Foreword
This Technical Specification has been produced by the 3
rd
Generation Partnership Project (3GPP).
The contents of the present document are subject to continuing work within the TSG and may change following formal
TSG approval. Should the TSG modify the contents of the present document, it will be re-released by the TSG with an
identifying change of release date and an increase in version number as follows:
Version x.y.z
where:
x the first digit:
1 presented to TSG for information;
2 presented to TSG for approval;
3 or greater indicates TSG approved document under change control.
y the second digit is incremented for all changes of substance, i.e. technical enhancements, corrections, updates,
etc.
z the third digit is incremented when editorial only changes have been incorporated in the document.
3GPP
3GPP TS 24.301 V14.4.0 (2017-06)
20
Release 14
1 Scope
The present document specifies the procedures used by the protocols for mobility management and session management
between User Equipment (UE) and Mobility Management Entity (MME) in the Evolved Packet System (EPS). These
protocols belong to the non-access stratum (NAS).
The EPS Mobility Management (EMM) protocol defined in the present document provides procedures for the control of
mobility when the User Equipment (UE) is using the Evolved UMTS Terrestrial Radio Access Network (E-UTRAN).
The EMM protocol also provides control of security for the NAS protocols.
The EPS Session Management (ESM) protocol defined in the present document provides procedures for the handling of
EPS bearer contexts. Together with the bearer control provided by the access stratum, this protocol is used for the
control of user plane bearers.
For both NAS protocols the present document specifies procedures for the support of inter-system mobility between
E-UTRAN and other 3GPP or non-3GPP access networks:
- For inter-system mobility between E-UTRAN and GERAN or UTRAN, this includes rules for a mapping
between parameters and procedures used by the NAS protocols defined in the present document and the NAS
protocols specified in 3GPP TS 24.008 [13].
- For inter-system mobility between E-UTRAN and generic non-3GPP access networks, this includes specific
NAS procedures to maintain IP connectivity to the PDN Gateway and to provide parameters needed by the UE
when using mobility management based on Dual-Stack Mobile IPv6 (see 3GPP TS 24.303 [14]) or MIPv4
(see 3GPP TS 24.304 [15]).
The present document is applicable to the UE and to the Mobility Management Entity (MME) in the EPS.
The present document is also applicable to the relay node in the EPS (see 3GPP TS 23.401 [10]).
The present document also specifies NAS signalling enhancement for the support of efficient transport of IP, non-IP
and SMS data of CIoT capable devices.
2 References
The following documents contain provisions which, through reference in this text, constitute provisions of the present
document.
References are either specific (identified by date of publication, edition number, version number, etc.) or
non-specific.
For a specific reference, subsequent revisions do not apply.
For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including
a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same
Release as the present document.
[1] 3GPP TR 21.905: "Vocabulary for 3GPP Specifications".
[1A] 3GPP TS 22.011: "Service accessibility".
[1B] Void.
[1C] 3GPP TS 22.278: "Service requirements for the Evolved Packet System (EPS)".
[2] 3GPP TS 23.003: "Numbering, addressing and identification".
[3] 3GPP TS 23.038: "Alphabets and language-specific information".
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