2003.12
Um 接口信令
GSM 系统专用协议DTAP DTAP Direct Transfer Application Part BSSMAP BSS Management Application Part CM Call Management MM Mobile Management RR Radio Resource Management SCCP Signalling Connection Control Part MAP Mobile Application Part TCAP Transaction Capability Application Part ISUP ISDN User Part MTP Message Transfer Part CM MM RR Sig. layer 2Layer 1 (air)Sig. layer 2Sig. layer 1MTP SCCP BSSMAP RR (CM+MM)MS BSC MTP MTP SCCP SCCP CM MM BSSMAP TCAP MAP I S U P MSC Sig. layer 2Layer 1 (air)BTS (CM)(MM)(RR)(CM)(MM)(RR)(CM)(MM)(LAPDm)(LAPDm)(LAPD)Sig. layer 2Sig. layer 1(LAPD)BTSM BTSM RR'BTSM BTS Man
agement
Um Interface Abis Interface A-interface Inter-MSC Interface
Channel Request Establishment Cause emergency call Call re-establish Location update Answer to paging: same as channel needed in Paging NECI=0: MO&procedure be complete with SDCCH NECI=1:
立即指配流程MS BSS CHANNEL REQUEST(1)IMMEDIATE ASSIGNMENT(EXTENDED)Immediate Assignment L2 Pseudo length Protocol discriminator Skip indication Message type----N(SD) for MS side Page mode Channel description Random reference Timing advance Mobile allocation Starting time T3126MM RR
CHANNEL REQUEST(2~M+1)IMMEDIATE ASSIGNMENT REJECT SABM(L3) (1)UA(L3)
SABM(L3) (2~6)
太阳是大家的教学设计Protocol discriminator Call control;call related SS messages Mobility management messages Radio resource management messages Skip indication Other than 0 should be ignore Page mode Normal paging Extended paging Paging reorganization Same as before Channel description Channel type and TDMA offset SDCCH/8+SACCH/8+subchannel SDCCH/4+SACCH/4+subchannel TCH/F+ACCH TN TSC Hopping channel single channel:ARFCN Request reference Random Access Information T1’/T2/T3——>FN T1’=(FN/1326)mod 32T2=(FN)mod 26T3=(FN)mod 51(FN)mod 42432=51x((T3-T2)mod 26)+T3+51x26xT1’Mobile allocation Index for CA Starting time T1’/T2/T3IA rest octets MAIO+Mobile allocation (frequency parameters before time)Immediate Assignment Extended
Page mode Channel description1Random reference1Timing advance1Channel description2Request reference2Timing advance2Mobile allocation Starting time IA rest octets Immediate Assignment Reject Page mode Random reference1Waiting Indication1Random reference2Waiting Indication2Random reference3Waiting Indication3Random reference4Waiting Indication4Waiting Indication T3122:0~255 second S~S+T-10~max(8,T)-1T3101T200:235ms MM 要求进入
专有模式
RR 允许接入网络
T3122RACH RACH AGCH AGCH SDCCH SDCCH SDCCH
T3126:T+2S~5 second
Paging Request Type1Mobile identity1(IMSI/TMSI)Mobile identity2(IMSI/TMSI)寻呼流程MS BSS PAGING REQUEST TYPE1/2/3PAGING REQUEST TYPE 1/2/3CHANNEL REQUEST IMMEDIATE ASSIGNMENT(EXTENDED)SABM(Paging response)UA(Paging response)Paging Request Type2Mobile identity3(IMSI/TMSI)Paging Request Type3Paging mode Channel needed for mobile1Mobile identity1(TMSI)Channel needed for mobile2Mobile identity2(TMSI)Channel needed for mobile3Mobile identity3(TMSI)PCH PCH T3113Paging Response Ciphering key sequence Mobile station classmark 2MS identity(IMSI/TMSI)Phase1/Phase2 MS Controlled Early Classmark Sending RF Power Capability Pseudo Synchronization Capability Supplementary Service Screening Indication MT SMS pt. To pt. Capability Frequency Capability(GSM900 Extended?)A5/1;A5.2;A5/3
Measurement report
BA-used
qe3是什么DTX-used
Meas-valid
Rxlev_full/sub(serving cell) Rxqual_full/sub(serving cell) NO-NCELL-M
Rxlev(neighbor cell 1~6) BCCH-Freq-Ncell(1~6) BSIC-Ncell(1~6)
SACCH流程
MS BSS
SYSTEM INFORMATION 5/5bis/5ter/6
朵康MEASUREMENT REPORT
宜昌市康庄路小学
SACCH Downlink L1 Header
Ordered MS power level
Ordered timing advance不公平的游戏
SACCH Uplink L1 Header
伶仃洋Actual MS power level
Actual timing advance SYSTEM INFORMATION 5/5bis/5ter/6
MEASUREMENT REPORT
SACCH
SACCH
SACCH
SACCH
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