This Technical Specification specifies the procedures used at the radio interface (Reference Point Um, see GSM TS 04.02) for Call Control (CC), Mobility Management (MM) and Radio Resource (RR) management.
The layer 3 procedures apply to the interface structures defined in TS GSM 04.03. They use the functions and services provided by layer 2 defined in TS GSM 04.05 and 04.06. TS GSM 04.07 gives the general description of layer 3 including procedures, messages format and error handling.
1. Radio Resource management procedures
- Idle mode procedures
- RR connection establishment
- Paging procedure
- Handover procedure
- RR connection release procedure
2. Elementary procedures for Mobility Management
- Type of MM procedures
- MM sublayer states
- Behaviour in MM IDLE State
- MM common procedures
- Location updating and Periodic updating procedure
- IMSI attach procedure
3.Elementary procedures for circuit-switched Call Control
- Call Control States
- Network call states
- Call establishment procedures
- Mobile terminating call establishment
- Call clearing
- Miscellaneous procedures
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