信令 nokia信令.doc

信令 nokia信令 导读：就爱阅读网友为您分享以下“nokia信令”资讯，希望对您有所帮助，感谢您对92的支持! NOKIA 1. MOBILE ORIGINATED CALL Nokia Standard Document Template Planning and IP Engineering +---------+ +---------+ +---------+ +---------+ +---------+ | MS | | BTS | | BSC | | MSC | | VLR | +---------+ +---------+ +---------+ +---------+ +---------+ | | | | | | | | | | | | ************************* | | | | | | * RADIO ACCESS PART * | | | | | | ************************* | | | | | | | | | | | | | | | |CHANNEL_REQUEST(RACH) | | | | | | |1 +---------gt;| | | | | | | | | | | |CHANNEL_REQUIRED | | | | | | |2 +---------gt;|---------------------------------SDCCH SEIZ ATT | | | |CHANNEL_ACTIVATION | | | | SDCCH BUSY ATT | | | +lt;---------|3 | | | | | GHOST CCCH RES | | | |CHANNEL_ACTIVATION_ACK. | | | | | | |4 +---------gt;| | | | | | | | | |IMMEDIATE_ASSIGNMENT_COMMAND | | | | | +lt;---------|5--------------------------------SDCCH_ASSIGN | |IMMEDIATE_ASSIGN(AGCH) | | | | | | | +lt;---------|6 | | | | | | | | | | | | | | | | | | | ************************** | | | | | | * ESTABLISHMENT PART * | | | | | | ************************** | | | | | | | | | | | | | | | |CM_SERVICE_REQUEST(S