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TS 24.301 (CT1)
Non-Access-Stratum (NAS) protocol
for Evolved Packet System (EPS) – Stage 3

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(P) V14.4.0    2017/06    476 p.
(P) V13.10.0    2017/06    458 p.
(P) V12.13.0    2016/12    368 p.
(P) V11.14.0    2015/03    336 p.
(P) V10.15.0    2014/09    315 p.
(P) V9.11.0    2013/03    285 p.
(P) V8.10.0    2011/06    264 p.


Rapporteur:  Ms. Liu, Jennifer
See also:  EPC-related TS/TR    


This TS 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 this TS provides procedures for the control of mobility when the UE is using the E-UTRAN. The EMM protocol also provides control of security for the NAS protocols.
  • The EPS Session Management (ESM) protocol defined in this TS 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 this TS 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 this TS and the NAS protocols specified in TS 24.008.
  • 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 TS 24.303) or MIPv4
This TS is applicable to the UE and to the Mobility Management Entity (MME) in the EPS. It is also applicable to the relay node in the EPS (see TS 23.401).


 

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1   Scope [R8]   PDF-p. 20
2   References [R8]
3   Definitions and abbreviations [R8]   PDF-p. 23
4   General [R8]   PDF-p. 30
4.1   Overview
4.2   Linkage between the protocols for EPS mobility management and EPS session management
4.2A   Handling of NAS signalling low priority indication [R10]   PDF-p. 31
4.3   UE mode of operation
4.4   NAS security   PDF-p. 40
4.5   Disabling and re-enabling of UE's E-UTRA capability   PDF-p. 50
4.6   Applicability of procedures [R10]   PDF-p. 51
4.7   EPS mobility management and EPS session management in NB-S1 mode [R13]   PDF-p. 52
4.8   EPS mobility management and EPS session management in WB-S1 mode for IoT [R13]      Up

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