Section: 4.1.2.3 MM sublayer states on the network side
Content: 1. IDLE The MM sublayer is not active except possibly when the RR sublayer is in Group Receive mode. 2. WAIT FOR RR CONNECTION The MM sublayer has received a request for MM connection establishment from the CM layer. A RR connection to the mobile station is requested from the RR sublayer (i.e. paging is performed). 3. MM CONNECTION ACTIVE The MM sublayer has a RR connection to a mobile station. One or more MM connections are active, or no MM connection is active but an RRLP procedure or LCS procedure over RRC is ongoing. 4. IDENTIFICATION INITIATED The identification procedure has been started by the network. The timer T3270 is running. 5. AUTHENTICATION INITIATED The authentication procedure has been started by the network. The timer T3260 is running. 6. TMSI REALLOCATION INITIATED The TMSI reallocation procedure has been started by the network. The timer T3250 is running. 7. SECURITY MODE INITIATED In Iu mode, the security mode setting procedure has been requested to the RR sublayer. In A/Gb mode, the cipher mode setting procedure has been requested to the RR sublayer. 8a. WAIT FOR MOBILE ORIGINATED MM CONNECTION A CM SERVICE REQUEST message is received and processed, and the MM sublayer awaits the "opening message" of the MM connection. 8b. WAIT FOR NETWORK ORIGINATED MM CONNECTION A CM SERVICE PROMPT message has been sent by the network and the MM sublayer awaits the "opening message" of the MM connection $(CCBS)$. 9. WAIT FOR REESTABLISHMENT The RR connection to a mobile station with one or more active MM connection has been lost. The network awaits a possible re-establishment request from the mobile station. 10. WAIT OF A GROUP CALL Only applicable in case for mobile station supporting VGCS talking. The MM sublayer has received a request for establishing a VGCS from the GCC sublayer. The request for establishing a VGCS channels is given to the RR sublayer. 11. GROUP CALL ACTIVE Only applicable in case of mobile station supporting VGCS talking. A VGCS channel is established by the RR sublayer. An RR connection to the talking mobile station can be established by the RR sublayer on the VGCS channel. The MM sublayer is active but no sending of MM message between the network and the mobile station has occurred. 12. MM CONNECTION ACTIVE (GROUP CALL) Only applicable in case of mobile station supporting VGCS talking. The MM sublayer has a RR connection to the talking mobile station on the VGCS channel. Only one MM connection is active. 13. WAIT FOR BROADCAST CALL Only applicable in case of VBS. The MM sublayer has received a request for a VBS establishment from the BCC sublayer. The request for establishment of VBS channels is given to the RR sublayer. 14. BROADCAST CALL ACTIVE Only applicable in case of VBS. A VBS channel is established by the RR sublayer. The MM sublayer is active but no explicit MM establishment between the Network and the mobile station has occurred.