TS 24.301 — Non-Access-Stratum (NAS) protocol for Evolved Packet System (EPS)⚓︎
Release: Rel 15 · Version assessed: 15.2.0 · Network: 4G · Applies to: MME, PGW
Mandatory items: 428, of which 428 supported. A further 309 clauses of the specification carry no conformance requirement and are not listed.
Mandatory items⚓︎
| Ref. | Item | Status | Support | Remarks |
|---|---|---|---|---|
| 4.4 | NAS security | Mandatory | Supported | |
| 4.4.1 | General | Mandatory | Supported | |
| 4.4.2 | Handling of EPS security contexts | Mandatory | Supported | |
| 4.4.2.1 | General | Mandatory | Supported | |
| 4.4.2.2 | Establishment of a mapped EPS security context during intersystem handover | Mandatory | Supported | |
| 4.4.2.3 | Establishment of secure exchange of NAS messages | Mandatory | Supported | |
| 4.4.2.4 | Change of security keys | Mandatory | Supported | |
| 4.4.3 | Handling of NAS COUNT and NAS sequence number | Mandatory | Supported | |
| 4.4.3.1 | General | Mandatory | Supported | |
| 4.4.3.2 | Replay protection | Mandatory | Supported | |
| 4.4.3.3 | Integrity protection and verification | Mandatory | Supported | |
| 4.4.3.4 | Ciphering and deciphering | Mandatory | Supported | |
| 4.4.3.5 | NAS COUNT wrap around | Mandatory | Supported | |
| 4.4.4 | Integrity protection of NAS signalling messages | Mandatory | Supported | |
| 4.4.4.1 | General | Mandatory | Supported | |
| 4.4.4.3 | Integrity checking of NAS signalling messages in the MME | Mandatory | Supported | |
| 4.4.5 | Ciphering of NAS signalling messages | Mandatory | Supported | |
| 5.1 | Overview | Mandatory | Supported | |
| 5.1.2 | Types of EMM procedures | Mandatory | Supported | |
| 5.1.3 | EMM sub layer states | Mandatory | Supported | |
| 5.1.3.1 | General | Mandatory | Supported | |
| 5.1.3.4 | EMM sub layer states in the MME | Mandatory | Supported | |
| 5.1.3.4.1 | EMM-DEREGISTERED | Mandatory | Supported | |
| 5.1.3.4.2 | EMM-COMMON-PROCEDURE-INITIATED | Mandatory | Supported | |
| 5.1.3.4.3 | EMM-REGISTERED | Mandatory | Supported | |
| 5.1.3.4.4 | EMM-DEREGISTERED-INITIATED | Mandatory | Supported | |
| 5.3 | General on elementary EMM procedures | Mandatory | Supported | |
| 5.3.1 | EMM modes and NAS signalling connection | Mandatory | Supported | |
| 5.3.1.1 | Establishment of the NAS signalling connection | Mandatory | Supported | |
| 5.3.1.2 | Release of the NAS signalling connection | Mandatory | Supported | Cdma2000 is not supported |
| 5.3.5 | Handling of the periodic tracking area update timer and mobile reachable timer (S1 mode only) | Mandatory | Supported | |
| 5.4 | EMM common procedures | Mandatory | Supported | |
| 5.4.2 | Authentication procedure | Mandatory | Supported | |
| 5.4.2.1 | General | Mandatory | Supported | |
| 5.4.2.2 | Authentication initiation by the network | Mandatory | Supported | |
| 5.4.2.4 | Authentication completion by the network | Mandatory | Supported | |
| 5.4.2.5 | Authentication not accepted by the network | Mandatory | Supported | |
| 5.4.2.7 | Abnormal cases | Mandatory | Supported | |
| 5.4.3 | Security mode control procedure | Mandatory | Supported | |
| 5.4.3.1 | General | Mandatory | Supported | |
| 5.4.3.2 | NAS security mode control initiation by the network | Mandatory | Supported | |
| 5.4.3.4 | NAS security mode control completion by the network | Mandatory | Supported | |
| 5.4.3.7 | Abnormal cases on the network side | Mandatory | Supported | |
| 5.4.4 | Identification procedure | Mandatory | Supported | |
| 5.4.4.1 | General | Mandatory | Supported | |
| 5.4.4.2 | Identification initiation by the network | Mandatory | Supported | |
| 5.4.4.4 | Identification completion by the network | Mandatory | Supported | |
| 5.4.4.6 | Abnormal cases on the network side | Mandatory | Supported | |
| 5.4.5.1 | General | Mandatory | Supported | |
| 5.4.5.2 | EMM information procedure initiation by the network | Mandatory | Supported | |
| 5.4.5.4 | Abnormal cases on the network side | Mandatory | Supported | |
| 5.5 | EMM specific procedures | Mandatory | Supported | |
| 5.5.1 | Attach procedure | Mandatory | Supported | |
| 5.5.1.1 | General | Mandatory | Supported | |
| 5.5.1.2 | Attach procedure for EPS services | Mandatory | Supported | |
| 5.5.1.2.1 | General | Mandatory | Supported | |
| 5.5.1.2.3 | EMM common procedure initiation | Mandatory | Supported | |
| 5.5.1.2.4 | Attach accepted by the network | Mandatory | Supported | |
| 5.5.1.2.5 | Attach not accepted by the network | Mandatory | Supported | |
| 5.5.1.2.5A | Attach for emergency bearer services not accepted by the network | Mandatory | Supported | |
| 5.5.1.2.7 | Abnormal cases on the network side | Mandatory | Supported | |
| 5.5.2 | Detach procedure | Mandatory | Supported | |
| 5.5.2.1 | General | Mandatory | Supported | |
| 5.5.2.2 | UE initiated detach procedure | Mandatory | Supported | |
| 5.5.2.2.2 | UE initiated detach procedure completion for EPS services only | Mandatory | Supported | |
| 5.5.2.2.3 | UE initiated combined detach procedure completion | Mandatory | Supported | |
| 5.5.2.2.5 | Abnormal cases on the network side | Mandatory | Supported | |
| 5.5.2.3 | Network initiated detach procedure | Mandatory | Supported | |
| 5.5.2.3.1 | Network initiated detach procedure initiation | Mandatory | Supported | |
| 5.5.2.3.3 | Network initiated detach procedure completion by the network | Mandatory | Supported | |
| 5.5.2.3.5 | Abnormal cases on the network side | Mandatory | Supported | |
| 5.5.3 | Tracking area updating procedure (S1 mode only) | Mandatory | Supported | |
| 5.5.3.1 | General | Mandatory | Supported | |
| 5.5.3.2 | Normal and periodic tracking area updating procedure | Mandatory | Supported | |
| 5.5.3.2.1 | General | Mandatory | Supported | |
| 5.5.3.2.3 | EMM common procedure initiation | Mandatory | Supported | |
| 5.5.3.2.4 | Normal and periodic tracking area updating procedure accepted by the network | Mandatory | Supported | |
| 5.5.3.2.5 | Normal and periodic tracking area updating procedure not accepted by the network | Mandatory | Supported | |
| 5.5.3.2.7 | Abnormal cases on the network side | Mandatory | Supported | |
| 5.5.3.3 | Combined tracking area updating procedure | Mandatory | Supported | |
| 5.5.3.3.1 | General | Mandatory | Supported | |
| 5.5.3.3.4 | Combined tracking area updating procedure accepted by the network | Mandatory | Supported | |
| 5.5.3.3.4.1 | General | Mandatory | Supported | |
| 5.5.3.3.4.2 | Combined tracking area updating successful | Mandatory | Supported | |
| 5.5.3.3.4.3 | Combined tracking area updating successful for EPS services only | Mandatory | Supported | |
| 5.5.3.3.5 | Combined tracking area updating procedure not accepted by the network | Mandatory | Supported | |
| 5.5.3.3.7 | Abnormal cases on the network side | Mandatory | Supported | |
| 5.6 | EMM connection management procedures (S1 mode only) | Mandatory | Supported | |
| 5.6.1 | Service request procedure | Mandatory | Supported | |
| 5.6.1.1 | General | Mandatory | Supported | |
| 5.6.1.3 | EMM common procedure initiation | Mandatory | Supported | |
| 5.6.1.4 | Service request procedure accepted by the network | Mandatory | Supported | |
| 5.6.1.5 | Service request procedure not accepted by the network | Mandatory | Supported | |
| 5.6.1.7 | Abnormal cases on the network side | Mandatory | Supported | |
| 5.6.2 | Paging procedure | Mandatory | Supported | |
| 5.6.2.1 | General | Mandatory | Supported | |
| 5.6.2.2 | Paging for EPS services | Mandatory | Supported | |
| 5.6.2.2.1 | Paging for EPS services through E-UTRAN using S-TMSI | Mandatory | Supported | |
| 5.6.2.2.1.1 | General | Mandatory | Supported | |
| 5.6.2.2.2 | Paging for EPS services through E-UTRAN using IMSI | Mandatory | Supported | |
| 5.7 | Reception of an EMM STATUS message by an EMM entity | Mandatory | Supported | |
| 6.1.3.3 | ESM sub layer states in the MME | Mandatory | Supported | |
| 6.1.3.3.1 | BEARER CONTEXT INACTIVE | Mandatory | Supported | |
| 6.1.3.3.2 | BEARER CONTEXT ACTIVE PENDING | Mandatory | Supported | |
| 6.1.3.3.3 | BEARER CONTEXT ACTIVE | Mandatory | Supported | |
| 6.1.3.3.4 | BEARER CONTEXT INACTIVE PENDING | Mandatory | Supported | |
| 6.1.3.3.5 | BEARER CONTEXT MODIFY PENDING | Mandatory | Supported | |
| 6.1.3.3.6 | PROCEDURE TRANSACTION INACTIVE | Mandatory | Supported | |
| 6.1.3.3.7 | PROCEDURE TRANSACTION PENDING | Mandatory | Supported | |
| 6.2 | IP address allocation | Mandatory | Supported | |
| 6.2.1 | General | Mandatory | Supported | |
| 6.2.2 | IP address allocation via NAS signalling | Mandatory | Supported | |
| 6.3 | General on elementary ESM procedures | Mandatory | Supported | |
| 6.3.1 | Services provided by lower layers | Mandatory | Supported | |
| 6.3.2 | Principles of address handling for ESM procedures | Mandatory | Supported | |
| 6.3.4 | Abnormal cases in the network | Mandatory | Supported | |
| 6.4 | Network initiated ESM procedures | Mandatory | Supported | |
| 6.4.1 | Default EPS bearer context activation procedure | Mandatory | Supported | |
| 6.4.1.1 | General | Mandatory | Supported | |
| 6.4.1.2 | Default EPS bearer context activation initiated by the network | Mandatory | Supported | |
| 6.4.1.6 | Abnormal cases on the network side | Mandatory | Supported | |
| 6.4.2 | Dedicated EPS bearer context activation procedure | Mandatory | Supported | |
| 6.4.2.1 | General | Mandatory | Supported | |
| 6.4.2.2 | Dedicated EPS bearer context activation initiated by the network | Mandatory | Supported | |
| 6.4.2.6 | Abnormal cases on the network side | Mandatory | Supported | |
| 6.4.3 | EPS bearer context modification procedure | Mandatory | Supported | |
| 6.4.3.1 | General | Mandatory | Supported | |
| 6.4.3.2 | EPS bearer context modification initiated by the network | Mandatory | Supported | |
| 6.4.3.6 | Abnormal cases on the network side | Mandatory | Supported | |
| 6.4.4 | EPS bearer context deactivation procedure | Mandatory | Supported | |
| 6.4.4.1 | General | Mandatory | Supported | |
| 6.4.4.2 | EPS bearer context deactivation initiated by the network | Mandatory | Supported | |
| 6.4.4.5 | Abnormal cases on the network side | Mandatory | Supported | |
| 6.4.4.6 | Local EPS bearer context deactivation without ESM signalling | Mandatory | Supported | |
| 6.5 | UE requested ESM procedures | Mandatory | Supported | |
| 6.5.1 | UE requested PDN connectivity procedure | Mandatory | Supported | |
| 6.5.1.1 | General | Mandatory | Supported | |
| 6.5.1.3 | UE requested PDN connectivity procedure accepted by the network | Mandatory | Supported | |
| 6.5.1.4 | UE requested PDN connectivity procedure not accepted by the network | Mandatory | Supported | |
| 6.5.1.4.1 | General | Mandatory | Supported | |
| 6.5.1.6 | Abnormal cases on the network side | Mandatory | Supported | |
| 6.5.2 | UE requested PDN disconnect procedure | Mandatory | Supported | |
| 6.5.2.1 | General | Mandatory | Supported | |
| 6.5.2.3 | UE requested PDN disconnection procedure accepted by the network | Mandatory | Supported | |
| 6.5.2.4 | UE requested PDN disconnection procedure not accepted by the network | Mandatory | Supported | |
| 6.5.2.6 | Abnormal cases on the network side | Mandatory | Supported | |
| 6.5.3 | UE requested bearer resource allocation procedure | Mandatory | Supported | In case the EBI included in the NAS message is already allocated, then MME processes it as a Bearer Modification Procedure. |
| 6.5.3.1 | General | Mandatory | Supported | |
| 6.5.3.3 | UE requested bearer resource allocation procedure accepted by the network | Mandatory | Supported | |
| 6.5.3.4 | UE requested bearer resource allocation procedure not accepted by the network | Mandatory | Supported | |
| 6.5.3.4.1 | General | Mandatory | Supported | |
| 6.5.3.6 | Abnormal cases on the network side | Mandatory | Supported | |
| 6.5.4 | UE requested bearer resource modification procedure | Mandatory | Supported | |
| 6.5.4.1 | General | Mandatory | Supported | |
| 6.5.4.3 | UE requested bearer resource modification procedure accepted by the network | Mandatory | Supported | |
| 6.5.4.4 | UE requested bearer resource modification procedure not accepted by the network | Mandatory | Supported | |
| 6.5.4.4.1 | General | Mandatory | Supported | |
| 6.5.4.6 | Abnormal cases on the network side | Mandatory | Supported | |
| 6.6 | Miscellaneous procedures | Mandatory | Supported | |
| 6.6.1 | Exchange of protocol configuration options | Mandatory | Supported | |
| 6.6.1.1 | General | Mandatory | Supported | |
| 6.6.1.2 | ESM information request procedure | Mandatory | Supported | |
| 6.6.1.2.1 | General | Mandatory | Supported | |
| 6.6.1.2.2 | ESM information request initiated by the network | Mandatory | Supported | |
| 6.6.1.2.4 | ESM information request completion by the network | Mandatory | Supported | |
| 6.6.1.2.6 | Abnormal cases on the network side | Mandatory | Supported | |
| 6.6.1.3 | Exchange of protocol configuration options in other messages | Mandatory | Supported | |
| 6.7 | Reception of an ESM STATUS message by an ESM entity | Mandatory | Supported | |
| 7.0 | Handling of unknown, unforeseen, and erroneous protocol data | Mandatory | Supported | |
| 7.1 | General | Mandatory | Supported | |
| 7.2 | Message too short | Mandatory | Supported | |
| 7.3 | Unknown or unforeseen procedure transaction identity or EPS bearer identity | Mandatory | Supported | |
| 7.3.1 | Procedure transaction identity | Mandatory | Supported | |
| 7.3.2 | EPS bearer identity | Mandatory | Supported | |
| 7.4 | Unknown or unforeseen message type | Mandatory | Supported | |
| 7.5 | Non-semantical mandatory information element errors | Mandatory | Supported | |
| 7.5.1 | Common procedures | Mandatory | Supported | |
| 7.5.2 | EPS mobility management | Mandatory | Supported | |
| 7.5.3 | EPS session management | Mandatory | Supported | |
| 7.6 | Unknown and unforeseen IEs in the non-imperative message part | Mandatory | Supported | |
| 7.6.1 | IEs unknown in the message | Mandatory | Supported | |
| 7.6.2 | Out of sequence IEs | Mandatory | Supported | |
| 7.6.3 | Repeated IEs | Mandatory | Supported | |
| 7.7 | Non-imperative message part errors | Mandatory | Supported | |
| 7.7.1 | Syntactically incorrect optional IEs | Mandatory | Supported | |
| 7.7.2 | Conditional IE errors | Mandatory | Supported | |
| 7.8 | Messages with semantically incorrect contents | Mandatory | Supported | |
| 8.0 | Message functional definitions and contents | Mandatory | Supported | |
| 8.1 | Overview | Mandatory | Supported | |
| 8.2 | EPS mobility management messages | Mandatory | Supported | |
| 8.2.1 | Attach accept | Mandatory | Supported | |
| 8.2.1.1 | Message definition | Mandatory | Supported | |
| 8.2.1.2 | GUTI | Mandatory | Supported | |
| 8.2.1.3 | Location area identification | Mandatory | Supported | |
| 8.2.1.4 | MS identity | Mandatory | Supported | |
| 8.2.1.5 | EMM cause | Mandatory | Supported | |
| 8.2.1.6 | T3402 value | Mandatory | Supported | |
| 8.2.1.7 | T3423 value | Mandatory | Supported | |
| 8.2.1.10 | EPS network feature support | Mandatory | Supported | |
| 8.2.2 | Attach complete | Mandatory | Supported | |
| 8.2.3 | Attach reject | Mandatory | Supported | |
| 8.2.3.1 | Message definition | Mandatory | Supported | |
| 8.2.3.2 | ESM message container | Mandatory | Supported | |
| 8.2.4 | Attach request | Mandatory | Supported | |
| 8.2.4.1 | Message definition | Mandatory | Supported | |
| 8.2.4.14 | Device properties | Mandatory | Supported | |
| 8.2.4.15 | Old GUTI type | Mandatory | Supported | |
| 8.2.5 | Authentication failure | Mandatory | Supported | |
| 8.2.5.1 | Message definition | Mandatory | Supported | |
| 8.2.5.2 | Authentication failure parameter | Mandatory | Supported | |
| 8.2.6 | Authentication reject | Mandatory | Supported | |
| 8.2.7 | Authentication request | Mandatory | Supported | |
| 8.2.8 | Authentication response | Mandatory | Supported | |
| 8.2.10 | Detach accept | Mandatory | Supported | |
| 8.2.10.1 | Detach accept (UE originating detach) | Mandatory | Supported | |
| 8.2.10.2 | Detach accept (UE terminated detach) | Mandatory | Supported | |
| 8.2.11 | Detach request | Mandatory | Supported | |
| 8.2.11.1 | Detach request (UE originating detach) | Mandatory | Supported | |
| 8.2.11.2 | Detach request (UE terminated detach) | Mandatory | Supported | |
| 8.2.11.2.1 | Message definition | Mandatory | Supported | |
| 8.2.11.2.2 | EMM cause | Mandatory | Supported | |
| 8.2.12 | Downlink NAS Transport | Mandatory | Supported | |
| 8.2.13 | EMM information | Mandatory | Supported | |
| 8.2.13.1 | Message definition | Mandatory | Supported | |
| 8.2.15 | Extended service request | Mandatory | Supported | |
| 8.2.15.1 | Message definition | Mandatory | Supported | |
| 8.2.18 | Identity request | Mandatory | Supported | |
| 8.2.19 | Identity response | Mandatory | Supported | |
| 8.2.20 | Security mode command | Mandatory | Supported | |
| 8.2.20.1 | Message definition | Mandatory | Supported | |
| 8.2.20.3 | Replayed nonceUE | Mandatory | Supported | |
| 8.2.20.4 | NonceMME | Mandatory | Supported | |
| 8.2.21 | Security mode complete | Mandatory | Supported | |
| 8.2.21.1 | Message definition | Mandatory | Supported | |
| 8.2.22 | Security mode reject | Mandatory | Supported | |
| 8.2.23 | Security protected NAS message | Mandatory | Supported | |
| 8.2.24 | Service reject | Mandatory | Supported | |
| 8.2.24.1 | Message definition | Mandatory | Supported | |
| 8.2.24.2 | T3442 value | Mandatory | Supported | |
| 8.2.25 | Service request | Mandatory | Supported | |
| 8.2.26 | Tracking area update accept | Mandatory | Supported | |
| 8.2.26.1 | Message definition | Mandatory | Supported | |
| 8.2.26.2 | T3412 value | Mandatory | Supported | |
| 8.2.26.3 | GUTI | Mandatory | Supported | |
| 8.2.26.4 | TAI list | Mandatory | Supported | |
| 8.2.26.5 | EPS bearer context status | Mandatory | Supported | |
| 8.2.26.6 | Location area identification | Mandatory | Supported | |
| 8.2.26.7 | MS identity | Mandatory | Supported | |
| 8.2.26.8 | EMM cause | Mandatory | Supported | |
| 8.2.26.9 | T3402 value | Mandatory | Supported | |
| 8.2.26.10 | T3423 value | Mandatory | Supported | |
| 8.2.26.13 | EPS network feature support | Mandatory | Supported | |
| 8.2.27 | Tracking area update complete | Mandatory | Supported | |
| 8.2.28 | Tracking area update reject | Mandatory | Supported | |
| 8.2.29 | Tracking area update request | Mandatory | Supported | |
| 8.2.29.1 | Message definition | Mandatory | Supported | |
| 8.2.29.2 | Non-current native NAS key set identifier | Mandatory | Supported | |
| 8.2.29.6 | NonceUE | Mandatory | Supported | |
| 8.2.29.7 | UE network capability | Mandatory | Supported | |
| 8.2.29.11 | EPS bearer context status | Mandatory | Supported | |
| 8.2.29.20 | Old GUTI type | Mandatory | Supported | |
| 8.2.29.21 | Device properties | Mandatory | Supported | |
| 8.3 | EPS session management messages | Mandatory | Supported | |
| 8.3.1 | Activate dedicated EPS bearer context accept | Mandatory | Supported | |
| 8.3.1.1 | Message definition | Mandatory | Supported | |
| 8.3.1.2 | Protocol configuration options | Mandatory | Supported | |
| 8.3.2 | Activate dedicated EPS bearer context reject | Mandatory | Supported | |
| 8.3.2.1 | Message definition | Mandatory | Supported | |
| 8.3.2.2 | Protocol configuration options | Mandatory | Supported | |
| 8.3.3 | Activate dedicated EPS bearer context request | Mandatory | Supported | |
| 8.3.3.1 | Message definition | Mandatory | Supported | |
| 8.3.3.2 | Transaction identifier | Mandatory | Supported | |
| 8.3.3.3 | Negotiated QoS | Mandatory | Supported | |
| 8.3.3.6 | Packet flow identifier | Mandatory | Supported | |
| 8.3.3.7 | Protocol configuration options | Mandatory | Supported | |
| 8.3.4 | Activate default EPS bearer context accept | Mandatory | Supported | |
| 8.3.4.1 | Message definition | Mandatory | Supported | |
| 8.3.4.2 | Protocol configuration options | Mandatory | Supported | |
| 8.3.5 | Activate default EPS bearer context reject | Mandatory | Supported | |
| 8.3.5.1 | Message definition | Mandatory | Supported | |
| 8.3.5.2 | Protocol configuration options | Mandatory | Supported | |
| 8.3.6 | Activate default EPS bearer context request | Mandatory | Supported | |
| 8.3.6.1 | Message definition | Mandatory | Supported | |
| 8.3.6.2 | Transaction identifier | Mandatory | Supported | |
| 8.3.6.3 | Negotiated QoS | Mandatory | Supported | |
| 8.3.6.6 | Packet flow identifier | Mandatory | Supported | |
| 8.3.6.7 | APN-AMBR | Mandatory | Supported | |
| 8.3.6.8 | ESM cause | Mandatory | Supported | |
| 8.3.6.9 | Protocol configuration options | Mandatory | Supported | |
| 8.3.7 | Bearer resource allocation reject | Mandatory | Supported | |
| 8.3.7.1 | Message definition | Mandatory | Supported | |
| 8.3.7.2 | Protocol configuration options | Mandatory | Supported | |
| 8.3.8 | Bearer resource allocation request | Mandatory | Supported | |
| 8.3.8.1 | Message definition | Mandatory | Supported | |
| 8.3.8.2 | Protocol configuration options | Mandatory | Supported | |
| 8.3.8.3 | Device properties | Mandatory | Supported | |
| 8.3.9 | Bearer resource modification reject | Mandatory | Supported | |
| 8.3.9.1 | Message definition | Mandatory | Supported | |
| 8.3.9.2 | Protocol configuration options | Mandatory | Supported | |
| 8.3.10 | Bearer resource modification request | Mandatory | Supported | |
| 8.3.10.1 | Message definition | Mandatory | Supported | |
| 8.3.10.2 | Required traffic flow QoS | Mandatory | Supported | |
| 8.3.10.3 | ESM cause | Mandatory | Supported | |
| 8.3.10.4 | Protocol configuration options | Mandatory | Supported | |
| 8.3.10.5 | Device properties | Mandatory | Supported | |
| 8.3.11 | Deactivate EPS bearer context accept | Mandatory | Supported | |
| 8.3.11.1 | Message definition | Mandatory | Supported | |
| 8.3.11.2 | Protocol configuration options | Mandatory | Supported | |
| 8.3.12 | Deactivate EPS bearer context request | Mandatory | Supported | |
| 8.3.12.1 | Message definition | Mandatory | Supported | |
| 8.3.12.2 | Protocol configuration options | Mandatory | Supported | |
| 8.3.13 | ESM information request | Mandatory | Supported | |
| 8.3.14 | ESM information response | Mandatory | Supported | |
| 8.3.14.1 | Message definition | Mandatory | Supported | |
| 8.3.14.2 | Access point name | Mandatory | Supported | |
| 8.3.14.3 | Protocol configuration options | Mandatory | Supported | |
| 8.3.15 | ESM status | Mandatory | Supported | |
| 8.3.16 | Modify EPS bearer context accept | Mandatory | Supported | |
| 8.3.16.1 | Message definition | Mandatory | Supported | |
| 8.3.16.2 | Protocol configuration options | Mandatory | Supported | |
| 8.3.17 | Modify EPS bearer context reject | Mandatory | Supported | |
| 8.3.17.1 | Message definition | Mandatory | Supported | |
| 8.3.17.2 | Protocol configuration options | Mandatory | Supported | |
| 8.3.18 | Modify EPS bearer context request | Mandatory | Supported | |
| 8.3.18.1 | Message definition | Mandatory | Supported | |
| 8.3.18.2 | New EPS QoS | Mandatory | Supported | |
| 8.3.18.3 | TFT | Mandatory | Supported | |
| 8.3.18.4 | New QoS | Mandatory | Supported | |
| 8.3.18.7 | Packet flow identifier | Mandatory | Supported | |
| 8.3.18.8 | APN-AMBR | Mandatory | Supported | |
| 8.3.18.9 | Protocol configuration options | Mandatory | Supported | |
| 8.3.19 | PDN connectivity reject | Mandatory | Supported | |
| 8.3.19.1 | Message definition | Mandatory | Supported | |
| 8.3.19.2 | Protocol configuration options | Mandatory | Supported | |
| 8.3.20 | PDN connectivity request | Mandatory | Supported | |
| 8.3.20.1 | Message definition | Mandatory | Supported | |
| 8.3.20.2 | ESM information transfer flag | Mandatory | Supported | |
| 8.3.20.3 | Access point name | Mandatory | Supported | |
| 8.3.20.4 | Protocol configuration options | Mandatory | Supported | |
| 8.3.20.5 | Device properties | Mandatory | Supported | |
| 8.3.21 | PDN disconnect reject | Mandatory | Supported | |
| 8.3.21.1 | Message definition | Mandatory | Supported | |
| 8.3.21.2 | Protocol configuration options | Mandatory | Supported | |
| 8.3.22 | PDN disconnect request | Mandatory | Supported | |
| 8.3.22.1 | Message definition | Mandatory | Supported | |
| 8.3.22.2 | Protocol configuration options | Mandatory | Supported | |
| 9.0 | General message format and information elements coding | Mandatory | Supported | |
| 9.1 | Overview | Mandatory | Supported | |
| 9.2 | Protocol discriminator | Mandatory | Supported | |
| 9.3 | Security header type and EPS bearer identity | Mandatory | Supported | |
| 9.3.1 | Security header type | Mandatory | Supported | |
| 9.3.2 | EPS bearer identity | Mandatory | Supported | |
| 9.4 | Procedure transaction identity | Mandatory | Supported | |
| 9.5 | Message authentication code | Mandatory | Supported | |
| 9.6 | Sequence number | Mandatory | Supported | |
| 9.7 | NAS message | Mandatory | Supported | |
| 9.8 | Message type | Mandatory | Supported | |
| 9.9 | Other information elements | Mandatory | Supported | |
| 9.9.1 | General | Mandatory | Supported | |
| 9.9.2 | Common information elements | Mandatory | Supported | |
| 9.9.2.0A | Device properties | Mandatory | Supported | |
| 9.9.2.1 | EPS bearer context status | Mandatory | Supported | |
| 9.9.2.2 | Location area identification | Mandatory | Supported | |
| 9.9.2.3 | Mobile identity | Mandatory | Supported | |
| 9.9.2.6 | NAS security parameters from E-UTRA | Mandatory | Supported | |
| 9.9.2.7 | NAS security parameters to E-UTRA | Mandatory | Supported | |
| 9.9.3 | EPS Mobility Management (EMM) information elements | Mandatory | Supported | |
| 9.9.3.1 | Authentication failure parameter | Mandatory | Supported | |
| 9.9.3.2 | Authentication parameter AUTN | Mandatory | Supported | |
| 9.9.3.3 | Authentication parameter RAND | Mandatory | Supported | |
| 9.9.3.4 | Authentication response parameter | Mandatory | Supported | |
| 9.9.3.4A | Ciphering key sequence number | Mandatory | Supported | |
| 9.9.3.6 | Daylight saving time | Mandatory | Supported | |
| 9.9.3.7 | Detach type | Mandatory | Supported | |
| 9.9.3.9 | EMM cause | Mandatory | Supported | |
| 9.9.3.10 | EPS attach result | Mandatory | Supported | |
| 9.9.3.11 | EPS attach type | Mandatory | Supported | |
| 9.9.3.12 | EPS mobile identity | Mandatory | Supported | |
| 9.9.3.12A | EPS network feature support | Mandatory | Supported | |
| 9.9.3.13 | EPS update result | Mandatory | Supported | |
| 9.9.3.14 | EPS update type | Mandatory | Supported | |
| 9.9.3.15 | ESM message container | Mandatory | Supported | |
| 9.9.3.19 | KSI and sequence number | Mandatory | Supported | |
| 9.9.3.21 | NAS key set identifier | Mandatory | Supported | |
| 9.9.3.22 | NAS message container | Mandatory | Supported | |
| 9.9.3.23 | NAS security algorithms | Mandatory | Supported | |
| 9.9.3.24 | Network name | Mandatory | Supported | |
| 9.9.3.25 | Nonce | Mandatory | Supported | |
| 9.9.3.25A | Paging identity | Mandatory | Supported | |
| 9.9.3.27 | Service type | Mandatory | Supported | |
| 9.9.3.28 | Short MAC | Mandatory | Supported | |
| 9.9.3.29 | Time zone | Mandatory | Supported | |
| 9.9.3.30 | Time zone and time | Mandatory | Supported | |
| 9.9.3.32 | Tracking area identity | Mandatory | Supported | |
| 9.9.3.33 | Tracking area identity list | Mandatory | Supported | |
| 9.9.3.34 | UE network capability | Mandatory | Supported | |
| 9.9.3.36 | UE security capability | Mandatory | Supported | |
| 9.9.3.45 | GUTI type | Mandatory | Supported | |
| 9.9.4 | EPS Session Management (ESM) information elements | Mandatory | Supported | |
| 9.9.4.1 | Access point name | Mandatory | Supported | |
| 9.9.4.2 | APN aggregate maximum bit rate | Mandatory | Supported | |
| 9.9.4.3 | EPS quality of service | Mandatory | Supported | |
| 9.9.4.4 | ESM cause | Mandatory | Supported | |
| 9.9.4.5 | ESM information transfer flag | Mandatory | Supported | |
| 9.9.4.6 | Linked EPS bearer identity | Mandatory | Supported | |
| 9.9.4.8 | Packet flow identifier | Mandatory | Supported | |
| 9.9.4.9 | PDN address | Mandatory | Supported | |
| 9.9.4.10 | PDN type | Mandatory | Supported | |
| 9.9.4.11 | Protocol configuration options | Mandatory | Supported | |
| 9.9.4.12 | Quality of service | Mandatory | Supported | |
| 9.9.4.14 | Request type | Mandatory | Supported | |
| 9.9.4.15 | Traffic flow aggregate description | Mandatory | Supported | |
| 9.9.4.16 | Traffic flow template | Mandatory | Supported | |
| 9.9.4.17 | Transaction identifier | Mandatory | Supported | |
| 10.0 | List of system parameters | Mandatory | Supported | |
| 10.1 | General | Mandatory | Supported | |
| 10.2 | Timers of EPS mobility management | Mandatory | Supported | |
| 10.3 | Timers of EPS session management | Mandatory | Supported | |
| Annex A | Cause values for EPS mobility management | Mandatory | Supported | |
| A.1 | Causes related to UE identification | Mandatory | Supported | |
| A.2 | Cause related to subscription options | Mandatory | Supported | |
| A.3 | Causes related to PLMN specific network failures and congestion/authentication failures | Mandatory | Supported | Authentication related |
| A.4 | Causes related to nature of request | Mandatory | Supported | |
| A.5 | Causes related to invalid messages | Mandatory | Supported | |
| Annex B | Cause values for EPS session management | Mandatory | Supported | |
| B.1 | Causes related to nature of request | Mandatory | Supported | |
| B.2 | Protocol errors (e.g., unknown message) class | Mandatory | Supported | |
| Annex C | Storage of EMM information | Mandatory | Supported |
Optional items⚓︎
The specification leaves these 196 items to the implementation; 34 are supported or partially supported. An item marked Not applicable belongs to an area the platform does not provide, named in the Support column. Expand for the full list.
196 optional items
| Ref. | Item | Support | Remarks |
|---|---|---|---|
| 4.2A | Handling of NAS signalling low priority indication | Supported | |
| 4.4.2.5 | Derivation of keys at CS to PS SRVCC handover from A/Gb mode to S1 mode or from Iu mode to S1 mode | Not supported | |
| 4.5 | Disabling and re-enabling of UEs E-UTRA capability | Not supported | |
| 5.1.1 | General | Supported | SMS based mobility management is not supported. |
| 5.3.1.3 | Suspend and resume of the NAS signalling connection | Not supported | |
| 5.3.12 | Extended idle-mode DRX cycle | Supported | |
| 5.3.14 | Dedicated core network | Not supported | |
| 5.3.15 | CIoT EPS optimizations | Not supported | |
| 5.3.16 | Restriction on use of enhanced coverage | Not supported | |
| 5.3.17 | Service Gap Control | Not supported | |
| 5.4.5 | EMM information procedure | Not supported | |
| 5.5.1.2.4A | Attach successful for EPS services and not accepted for SMS services | Not supported | |
| 5.5.3.2.4A | Tracking area updating successful for EPS services and not accepted for SMS services | Not supported | |
| 5.6.2.2.1.2 | Abnormal cases on the network side | Supported | Here, MME stops the ongoing PAGING procedure and starts with the Normal Attach procedure. |
| 5.6.3 | Transport of NAS messages procedure | Not supported | |
| 5.6.3.1 | General | Not supported | |
| 5.6.3.3 | Network initiated transport of NAS messages | Not supported | |
| 5.6.3.5 | Abnormal cases on the network side | Supported | |
| 6.2A | IP header compression | Not supported | |
| 6.3.5 | Handling of APN based congestion control | Not supported | |
| 6.3.5A | Handling of group specific session management congestion control | Not supported | |
| 6.3.6 | Handling of network rejection not due to APN based congestion control | Not supported | |
| 6.3.8 | Handling of serving PLMN rate control | Not supported | |
| 6.3.9 | Handling of APN rate control | Not supported | |
| 6.3.10 | Handling of 3GPP PS data off | Not supported | |
| 6.3.11 | Handling of Reliable Data Service | Not supported | |
| 6.6.4 | Transport of user data via the control plane procedure | Not supported | |
| 6.6.4.1 | General | Not supported | |
| .6.6.4.2 | UE initiated transport of user data via the control plane | Not supported | |
| 6.6.4.3 | Network initiated transport of user data via the control plane | Not supported | |
| 8.2.1.12 | T3412 extended value | Not supported | |
| 8.2.1.13 | T3324 value | Supported | |
| 8.2.1.14 | Extended DRX parameters | Supported | |
| 8.2.1.15 | DCN-ID | Not supported | |
| 8.2.1.16 | SMS services status | Not supported | |
| 8.2.1.17 | Non-3GPP NW provided policies | Not supported | |
| 8.2.1.18 | T3448 value | Not supported | |
| 8.2.1.19 | Network policy | Not supported | |
| 8.2.1.20 | T3447 value | Not supported | |
| 8.2.3.4 | T3402 value | Not supported | |
| 8.2.3.5 | Extended EMM cause | Supported | |
| 8.2.4.16 | MS network feature support | Not supported | |
| 8.2.4.17 | TMSI based NRI container | Not supported | |
| 8.2.4.18 | T3324 value | Supported | |
| 8.2.4.19 | T3412 extended value | Supported | |
| 8.2.4.20 | Extended DRX parameters | Supported | |
| 8.2.4.21 | UE additional security capability | Supported | |
| 8.2.9 | CS service notification | Not supported | |
| 8.2.9.1 | Message definition | Not supported | |
| 8.2.9.2 | CLI | Not supported | |
| 8.2.9.3 | SS Code | Not supported | |
| 8.2.9.4 | LCS indicator | Not supported | |
| 8.2.9.5 | LCS client identity | Not supported | |
| 8.2.13.2 | Full name for network | Supported | |
| 8.2.13.3 | Short name for network | Not supported | |
| 8.2.13.4 | Local time zone | Not supported | |
| 8.2.13.5 | Universal time and local time zone | Not supported | |
| 8.2.13.6 | Network daylight saving time | Not supported | |
| 8.2.14 | EMM status | Not supported | |
| 8.2.20.2 | IMEISV request | Not supported | |
| 8.2.20.5 | HashMME | Not supported | |
| 8.2.20.6 | Replayed UE additional security capability | Supported | |
| 8.2.21.2 | IMEISV | Not supported | |
| 8.2.21.3 | Replayed NAS message container | Not supported | |
| 8.2.24.4 | T3448 value | Not supported | |
| 8.2.26.11 | Equivalent PLMNs | Not supported | |
| 8.2.26.12 | Emergency number list | Not supported | |
| 8.2.26.12A | Extended emergency number list | Not supported | |
| 8.2.26.14 | Additional update result | Not supported | |
| 8.2.26.15 | T3412 extended value | Not supported | |
| 8.2.26.16 | T3324 value | Not supported | |
| 8.2.26.17 | Extended DRX parameters | Supported | |
| 8.2.26.18 | DCN-ID | Not supported | |
| 8.2.26.19 | SMS services status | Not supported | |
| 8.2.26.20 | Non-3GPP NW provided policies | Not supported | |
| 8.2.26.21 | T3448 value | Not supported | |
| 8.2.26.22 | Network policy | Not supported | |
| 8.2.26.23 | T3447 value | Not supported | |
| 8.2.28.3 | Extended EMM cause | Supported | |
| 8.2.29.8 | Last visited registered TAI | Not supported | |
| 8.2.29.9 | DRX parameter | Not supported | |
| 8.2.29.10 | UE radio capability information update needed | Not supported | |
| 8.2.29.12 | MS network capability | Not supported | |
| 8.2.29.13 | Old location area identification | Not supported | |
| 8.2.29.14 | TMSI status | Not supported | |
| 8.2.29.15 | Mobile station class mark 2 | Not supported | |
| 8.2.29.16 | Mobile station class mark 3 | Not supported | |
| 8.2.29.17 | Supported Codecs | Not supported | |
| 8.2.29.18 | Additional update type | Not supported | |
| 8.2.29.22 | MS network feature support | Not supported | |
| 8.2.29.23 | TMSI based NRI container | Not supported | |
| 8.2.29.24 | T3324 value | Supported | |
| 8.2.29.25 | T3412 extended value | Supported | |
| 8.2.29.26 | Extended DRX parameters | Supported | |
| 8.2.29.27 | UE additional security capability | Supported | |
| 8.2.29.28 | UE status | Not supported | |
| 8.2.30 | Uplink NAS Transport | Not supported | |
| 8.2.33 | CONTROL PLANE SERVICE REQUEST | Not supported | |
| 8.2.33.1 | Message definition | Not supported | |
| 8.2.33.2 | ESM message container | Not supported | |
| 8.2.33.3 | NAS message container | Not supported | |
| 8.2.33.4 | EPS bearer context status | Not supported | |
| 8.2.33.5 | Device properties | Not supported | |
| 8.2.34 | Service Accept | Not supported | |
| 8.2.34.1 | Message definition | Not supported | |
| 8.2.34.2 | EPS bearer context status | Not supported | |
| 8.2.34.3 | T3448 value | Not supported | |
| 8.3.1.4 | Extended protocol configuration options | Not supported | |
| 8.3.2.4 | Extended protocol configuration options | Not supported | |
| 8.3.3.4 | Negotiated LLC SAPI | Not supported | |
| 8.3.3.5 | Radio priority | Not supported | |
| 8.3.3.10 | Extended protocol configuration options | Not supported | |
| 8.3.3.11 | Extended EPS QoS | Supported | |
| 8.3.4.3 | Extended protocol configuration options | Not supported | |
| 8.3.5.3 | Extended protocol configuration options | Not supported | |
| 8.3.6.4 | Negotiated LLC SAPI | Not supported | |
| 8.3.6.5 | Radio priority | Not supported | |
| 8.3.6.15 | Extended protocol configuration options | Not supported | |
| 8.3.6.16 | Serving PLMN rate control | Not supported | |
| 8.3.6.17 | Extended APN aggregate maximum bit rate | Supported | |
| 8.3.6.18 | Extended EPS QoS | Supported | |
| 8.3.7.4 | Re-attempt indicator | Not supported | |
| 8.3.7.6 | Extended protocol configuration options | Not supported | |
| 8.3.8.5 | Extended protocol configuration options | Not supported | |
| 8.3.8.6 | Extended EPS QoS | Supported | |
| 8.3.9.4 | Re-attempt indicator | Not supported | |
| 8.3.9.6 | Extended protocol configuration options | Not supported | |
| 8.3.10.7 | Header compression configuration | Not supported | |
| 8.3.10.8 | Extended protocol configuration options | Not supported | |
| 8.3.10.9 | Extended EPS QoS | Supported | |
| 8.3.11.4 | Extended protocol configuration options | Not supported | |
| 8.3.12.3 | T3396 value | Not supported | |
| 8.3.12.6 | Extended protocol configuration options | Not supported | |
| 8.3.12A | ESM dummy message | Not supported | |
| 8.3.14.3 | Extended protocol configuration options | Not supported | |
| 8.3.16.4 | Extended protocol configuration options | Not supported | |
| 8.3.17.4 | Extended protocol configuration options | Not supported | |
| 8.3.18.5 | Negotiated LLC SAPI | Not supported | |
| 8.3.18.6 | Radio priority | Not supported | |
| 8.3.18.12 | Header compression configuration | Not supported | |
| 8.3.18.13 | Extended protocol configuration options | Not supported | |
| 8.3.18.14 | Extended APN-AMBR | Supported | |
| 8.3.18.15 | Extended EPS QoS | Supported | |
| 8.3.19.4 | Re-attempt indicator | Not supported | |
| 8.3.19.5 | Extended protocol configuration options | Not supported | |
| 8.3.20.8 | Extended protocol configuration options | Not supported | |
| 8.3.21.3 | Extended protocol configuration options | Not supported | |
| 8.3.22.3 | Extended protocol configuration options | Not supported | |
| 8.3.25 | ESM DATA TRANSPORT | Not supported | |
| 8.3.25.1 | Message definition | Not supported | |
| 8.3.25.2 | Release assistance indication | Not supported | |
| 9.9.2.4 | Mobile station class mark 2 | Not supported | |
| 9.9.2.5 | Mobile station class mark 3 | Not supported | |
| 9.9.2.8 | PLMN list | Not supported | |
| 9.9.2.10 | Supported codec list | Not supported | |
| 9.9.3.0A | Additional update result | Not supported | |
| 9.9.3.0B | Additional update type | Not supported | |
| 9.9.3.4B | SMS services status | Not supported | |
| 9.9.3.5 | CSFB response | Not supported | |
| 9.9.3.8 | DRX parameter | Not supported | |
| 9.9.3.16 | GPRS timer | Not supported | |
| 9.9.3.16A | GPRS timer 2 | Supported | IE " T3324 value" of ATTACH REQUEST Message. |
| 9.9.3.16B | GPRS timer 3 | Supported | IE " T3412 extended value " OF ATTACH REQUEST Message. |
| 9.9.3.17 | Identity type 2 | Not supported | |
| 9.9.3.18 | IMEISV request | Not supported | |
| 9.9.3.20 | MS network capability | Not supported | |
| 9.9.3.20A | MS network feature support | Not supported | |
| 9.9.3.26 | P-TMSI signature | Not supported | |
| 9.9.3.26A | Extended EMM cause | Supported | |
| 9.9.3.31 | TMSI status | Not supported | |
| 9.9.3.35 | UE radio capability information update needed | Not supported | |
| 9.9.3.37 | Emergency Number List | Not supported | |
| 9.9.3.37A | Extended Emergency Number List | Not supported | |
| 9.9.3.38 | CLI | Not supported | |
| 9.9.3.39 | SS Code | Not supported | |
| 9.9.3.40 | LCS indicator | Not supported | |
| 9.9.3.41 | LCS client identity | Not supported | |
| 9.9.3.46 | Extended DRX parameters | Supported | |
| 9.9.3.47 | Control plane service type | Not supported | |
| 9.9.3.48 | DCN-ID | Not supported | |
| 9.9.3.50 | HashMME | Not supported | |
| 9.9.3.51 | Replayed NAS message container | Not supported | |
| 9.9.3.52 | Network policy | Not supported | |
| 9.9.3.53 | UE additional security capability | Supported | |
| 9.9.3.54 | UE status | Not supported | |
| 9.9.4.7 | LLC service access point identifier | Not supported | |
| 9.9.4.13 | Radio priority | Not supported | |
| 9.9.4.24 | User data container | Not supported | |
| 9.9.4.25 | Release assistance indication | Not supported | |
| 9.9.4.26 | Extended protocol configuration options | Not supported | |
| 9.9.4.27 | Header compression configuration status | Not supported | |
| 9.9.4.28 | Serving PLMN rate control | Not supported | |
| 9.9.4.29 | Extended APN aggregate maximum bit rate | Supported | |
| 9.9.4.30 | Extended quality of service | Supported | |
| Annex D | Establishment cause (S1 mode only) | Not supported | |
| D.1 | Mapping of NAS procedure to RRC establishment cause (S1 mode only) | Not supported |
Assessed 2026-09-15 against TS 24.301 version 15.2.0.