4.1.2.2 The update Status...........................................................................................................................................69
4.1.2.3 MM sublayer states on the network side........................................................................................................70
4.1.3 GPRS mobility management (GMM) sublayer states.......................................................................................71
4.1.3.1 GMM states in the MS...................................................................................................................................71
4.1.3.1.1 Main states 71
4.1.3.1.2 Substates of state GMM-DEREGISTERED...............................................................................................72
4.1.3.1.3 Substates of state GMM-REGISTERED....................................................................................................72
4.1.3.2 GPRS update status........................................................................................................................................75
4.1.3.3 GMM mobility management states on the network side...............................................................................75
4.1.3.3.1 Main States76
4.1.3.3.2 Substates of state GMM-REGISTERED....................................................................................................76
4.2 Behaviour of the MS in MM Idle state, GMM-DEREGISTERED state and GMM-REGISTERED state.........77
4.2.1 Primary Service State selection.........................................................................................................................77
4.2.1.1 Selection of the Service State after Power On...............................................................................................77
4.2.1.2 Other Cases....................................................................................................................................................78
4.2.2 Detailed Description of the MS behaviour in MM IDLE State........................................................................78
4.2.2.1 Service State, NORMAL SERVICE..............................................................................................................78
4.2.2.2 Service State, ATTEMPTING TO UPDATE................................................................................................79
4.2.2.3 Service State, LIMITED SERVICE...............................................................................................................79
4.2.2.4 Service State, NO IMSI..................................................................................................................................80
4.2.2.5 Service State, SEARCH FOR PLMN, NORMAL SERVICE.......................................................................80
4.2.2.6 Service State, SEARCH FOR PLMN............................................................................................................81
4.2.2.7 Service State, RECEIVING GROUP CALL (NORMAL SERVICE)...........................................................81
4.2.2.8 Service State, RECEIVING GROUP CALL (LIMITED SERVICE)...........................................................81
4.2.2.9 Service State, eCALL INACTIVE.................................................................................................................82
4.2.3 Service state when back to state MM IDLE from another state.......................................................................82
4.2.4 Behaviour in state GMM-DEREGISTERED....................................................................................................83
4.2.4.1 Primary substate selection..............................................................................................................................83
4.2.4.1.1 Selection of the substate after power on or enabling the MS's GPRS capability........................................83
4.2.4.1.2 Other Cases.................................................................................................................................................84
4.2.4.2 Detailed description of the MS behaviour in state GMM-DEREGISTERED...............................................84
4.2.4.2.1 Substate, NORMAL-SERVICE..................................................................................................................84
4.2.4.2.2 Substate, ATTEMPTING-TO-ATTACH...................................................................................................84
4.2.4.2.3 Substate, LIMITED-SERVICE...................................................................................................................85
4.2.4.2.4 Substate, NO-IMSI......................................................................................................................................85
4.2.4.2.5 Substate, NO-CELL....................................................................................................................................85
4.2.4.2.6 Substate, PLMN-SEARCH.........................................................................................................................85
4.2.4.2.7 Substate, ATTACH-NEEDED....................................................................................................................85
4.2.4.2.8 Substate, SUSPENDED (A/Gb mode only)................................................................................................85
4.2.4.3 Substate when back to state GMM-DEREGISTERED from another GMM state........................................85
4.2.5 Behaviour in state GMM-REGISTERED.........................................................................................................86
4.2.5.1 Detailed description of the MS behaviour in state GMM-REGISTERED....................................................86
4.2.5.1.1 Substate, NORMAL-SERVICE..................................................................................................................86
4.2.5.1.2 Substate, SUSPENDED (A/Gb mode only)................................................................................................86
4.2.5.1.3 Substate, UPDATE-NEEDED....................................................................................................................87
4.2.5.1.4 Substate, ATTEMPTING-TO-UPDATE....................................................................................................87
4.2.5.1.5 Substate, NO-CELL-AVAILABLE............................................................................................................87
4.2.5.1.6 Substate, LIMITED-SERVICE...................................................................................................................88
4.2.5.1.7 Substate, ATTEMPTING-TO-UPDATE-MM...........................................................................................88
4.2.5.1.8 Substate, PLMN-SEARCH.........................................................................................................................88
4.3 MM common procedures.....................................................................................................................................88
4.3.1 TMSI reallocation procedure............................................................................................................................88
4.3.1.0 General 88
4.3.1.1 TMSI reallocation initiation by the network..................................................................................................89
4.3.1.2 TMSI reallocation completion by the mobile station.....................................................................................89
4.3.1.3 TMSI reallocation completion in the network...............................................................................................89
4.3.1.4 Abnormal cases in the mobile station............................................................................................................89
4.3.1.5 Abnormal cases on the network side..............................................................................................................89
4.3.2 Authentication procedure..................................................................................................................................90
4.3.2a Authentication procedure used for a UMTS authentication challenge...........................................................90
4.3.2b Authentication Procedure used for a GSM authentication challenge.............................................................90
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