1、NOKIA Nokia Standard Document TemplatePlanning and IP Engineering1. MOBILE ORIGINATED CALL+-+ +-+ +-+ +-+ +-+ MS BTS BSC MSC VLR +-+ +-+ +-+ +-+ +-+ * * RADIO ACCESS PART * * CHANNEL_REQUEST(RACH) 1 +- CHANNEL_REQUIRED 2 +-SDCCH SEIZ ATT CHANNEL_ACTIVATION SDCCH BUSY ATT + IMMEDIATE_ASSIGNMENT_COMMA
2、ND + ESTABLISH_INDICATION 8 +-SUCC SEIZ ORIG CR(CM_SERVICE_REQUEST) SUCC SEIZ TERM 9 +- SDCCH CALL RE EST UA(SDCCH) SDCCH EMERG CALL + * * CIPHERING & ENCRYPTION PART * * CALL SETUP * * AUTHENTICATE + DT1(AUTHENTICATION_RESPONSE) 16+- AUTHENTICATION_RESPONSE 17+- SET_CIPHERING_MODE + DT1(CIPHERING_M
3、ODE_COMPLETE) 23+- ACCESS_REQUEST_ACCEPTED + TMSI_REALLOCATION_COMPLETE 29+- TMSI_ACK 30+- SETUP(SDCCH) 31+-+-+- DT1(SETUP) 32+- SEND_INFO_FOR_OG_CALL 33+- COMPLETE_CALL +-TCH REQUEST CHANNEL_ACTIVATION TCH NORM SEIZ + A_BSC ASSIGNMENT_COMMAND(SDCCH) + ESTABLISH_INDICATION 44+- UA(FACCH) + DT1(ASSIG
4、NMENT_COMPLETE) 47+- A_MSC CHANNEL_RELEASE + DT1(ALERTING) + DT1(CONNECT_ACK.) 55+- NOKIA Nokia Standard Document TemplatePlanning and IP Engineering+-+ +-+ +-+ +-+ +-+ MS BTS BSC MSC VLR +-+ +-+ +-+ +-+ +-+ * * CONVERSATION PART * * LOGIGAL CHANNEL: TCH * * MEASUREMENT_REPORT(SACCH) 56+- MEASUREMEN
5、T_REPORT/RESULT 57+- * * RELEASE BY MS * * DISCONNECT(FACCH) 58+-+-+- DT1(DISCONNECT) 59+- DT1(RELEASE) + DT1(RELEASE_COMPLETE) 63+-B_MSC DT1(CLEAR_COMMAND) + UA(FACCH) + RF_CHANNEL_RELEASE +-B_BSC DT1(CLEAR_COMPLETE) 72+- RLSD(SCCP_RELEASED) + 2. MOBILE TERMINATED CALLNOKIA Nokia Standard Document
6、TemplatePlanning and IP Engineering+-+ +-+ +-+ +-+ MS BTS BSC MSC +-+ +-+ +-+ +-+ * * PAGING PART * * UDT(PAGING) + CHANNEL_REQUIRED 5 +- SDCCH SEIZ ATT CHANNEL_ACTIVATION SDCCH BUSY ATT + IMMEDIATE_ASSIGNMENT_COMMAND + ESTABLISH_INDICATION 11+- SUCC SEIZ ORIG CR(PAGING_RESPONSE) SUCC SEIZ TERM 12+-
7、 SDCCH CALL RE EST UA(SDCCH) SDCCH EMERG CALL + DT1(AUTHENTICATION_RESPONSE) 17+- DT1(IDENTITY_REQUEST) + DT1(IDENTIFICATION_RESPONSE) 21+- DT1(CIPHERING_MODE_COMMAND) + DT1(CIPHERING_MODE_COMPLETE) 26+- DT1(SETUP) + DT1(CALL_PROCEEDING) 30+- DT1(ASSIGNMENT_REQUEST) +- TCH REQUEST CHANNEL_ACTIVATION
8、 TCH REQ REJ LACK + A_BSC ASSIGNMENT_COMMAND(SDCCH) + ESTABLISH_INDICATION 38+- UA(FACCH) + DT1(ASSIGNMENT_COMPLETE) 41+- A_MSC CHANNEL_RELEASE + NOKIA Nokia Standard Document TemplatePlanning and IP Engineering+-+ +-+ +-+ +-+ MS BTS BSC MSC +-+ +-+ +-+ +-+ ALERTING(FACCH) 44+-+-+- DT1(ALERTING) 45+
9、- CONNECT(FACCH) 46+-+-+- DT1(CONNECT) 47+- DT1(CONNECT_ACK.) + MEASUREMENT_REPORT/RESULT 51+- * * RELEASE BY MS * * DISCONNECT(FACCH) 52+-+-+- DT1(DISCONNECT) 53+- DT1(RELEASE) + DT1(RELEASE_COMPLETE) 57+- B_MSC DT1(CLEAR_COMMAND) + UA(FACCH) + RF_CHANNEL_RELEASE +- B_BSC DT1(CLEAR_COMPLETE) 66+- RLSD(SCCP_RELEASED) + NOKIA Nokia Standard Document TemplatePlanning and IP Engineering
