《gsm協(xié)議棧原理》ppt課件-文庫(kù)吧
2025-04-20 12:35 本頁(yè)面
【正文】 ATCI (2/9) ? L4A ? Layer 4 adaptation ? Translate function calls to primitives between MMI and L4C. ? Code generated by tool base on an Excel file ? Source ? mcu/ps/l4/l4a ? ATCI ? Submodule of L4C ? AT mand Interpreter ? Source ? mcu/ps/l4/l4c L4 – RAC (3/9) ? Registration Access Control ? GSM/GPRS registration management ? PLMN List/Selection ? Cell power level report ? Interface ? L4C_RAC_SAP – L4C ? GMMREG_SAP – MM ? MMIAS_SAP RMPC ? Source ? mcu/ps/l4/rac L4 – TCM (4/9) ? Terminal Context Management ? Handle PDP context profiles ? QoS, PDP address, PDP types… ? Request to activate PDP contexts ? Relay of Data transfer ? Interfaces ? TCM_L4C_SAP – L4C ? SMREG_SAP – SM ? SNDCP_REG_SAP SNDCP ? TCM_PPP_SAP – PPP ? TCM_TCPIP_SAP TCPIP ? Source ? mcu\ps\l4\tcm L4 – SMSAL (5/9) ? SMS Application Layer ? Message box of ME amp。 SIM ? Transmitting and receiving SMS ? Cell Broadcast management ? Interfaces ? SMSAL_L4C_SAP – L4C ? SMSAL_SOC_SAP – SOC ? MNSMS_SAP – SMS ? SMSAL_AS_SAP RMPC ? Source ? mcu/ps/l4/smsal L4 – TCM/SMSAL in WAP/GPRS (6/9) ? TCM will relay IP packets to SNDCP, and vice versa. ? SMSAL forwards PUSH message to Socket T C MWAPTCP /IP/ UDPSOCL4CSNDCPABMLLCSMS MS A LSMSL4 – CSM (7/9) ? Call Service Management ? Bearer Capability Handling ? CODEC attachment management ? CSD/Fax activation/deactivation ? Call information maintaining ? Call related SS handling ? Interfaces ? CSM_L4C_SAP – L4C ? MNCC_SAP – CC ? CSM_TDT_SAP – TDT of Data ? CSM_L2R_SAP – L2R of Data ? MNSS_SAP CISS ? Source ? mcu/ps/l4/csm L4 – SMU (8/9) ? Security Management Unit ? Security Checking ? Phone lock ? CHV1/CHV2 ? Personalization (ETSI ) ? Autolock ? Interfaces ? SMU_L4C_SAP – L4C ? PS_SIM_SAP SIM ? Source ? mcu/ps/l4/smu L4 PHB amp。 UEM (9/9) ? Phonebook ? Identify Emergency call ? Phonebook management ? User Equipment Management ? Peripheral management NAS ? Non Access Stratum NAS – CISS (1/12) ? Call Independent Supplemental Service ? 3GPP/ETSI specifications: ? ~, , ? SAPs ? MM_SS_SAP MM ? MNSS_SAP CSM of L4 ? Source ? mcu/ps/ccss/ss NAS – CC (2/12) ? Call Control ? 3GPP/ETSI specifications ? (Clause 5) ? SAPs ? MM_CC_SAP – MM ? MNCC_SAP CSM of L4 ? Source ? mcu/ps/ccss/cc NAS – SMS (3/12) ? Short Message Service ? 3GPP/ETSI specification: ? ? SAPs ? MM_SMS_SAP MM ? MNSMS_SAP SMSAL of L4 ? LLC_SMS_SAP LLC (GPRSonly)
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