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gsm系統(tǒng)原理-公司培訓(xùn)-資料下載頁

2025-01-19 07:50本頁面
  

【正文】 HSN=0 Cyclic ? HSN=163 Pseudo Random Hopping ? ARFCN=Absolute Radio Frequency Channel Number 四川偉創(chuàng)科技 90 三、 呼叫信令流程 ? 呼叫信令流程 – 移動主叫 – 移動被叫 – 位置更新 – 切換 四川偉創(chuàng)科技 91 MS BSC Channel activation ack Channel activation Encryption mand Channel required Complete Layer 3 Info. Authentication request Call proceeding Cipher Mode Complete SABM(cm_serv_req) Immediate assign mand establish indication BTS Channel request UA(cm_serv_req) Cipher Mode Command Immediate assignment MSC Authentication response Setup Cipher Mode Command Cipher Mode Complete (To be continued) 移動主叫(一) 四川偉創(chuàng)科技 92 MS BSC BTS MSC Assignment Request Channel activation ack Assignment mand establish indication Assignment Complete Assignment Complete Deactivate SACCH Release request Release confirm RF Channle release RF Channel release ack Alerting Connect Connect acknowledge SABM UA Channel activation (To be continued) 移動主叫(二) 四川偉創(chuàng)科技 93 MS BSC BTS MSC Channel Release Release Complete Release Clear Command RF Channle release DISC Deactivate SACCH RF Channel release ack Release Indication UA Disconnect Clear Complete (End) 移動主叫(三) 四川偉創(chuàng)科技 94 MS BSC BTS MSC Channel activation ack Channel activation Encryption mand Channel required Complete Layer 3 Info. Authentication request Call confirm Cipher Mode Complete SABM(pag_resp) Immediate assign mand establish indication Channel request UA(pag_resp) Cipher Mode Command Immediate assignment Authentication response Setup Cipher Mode Command Cipher Mode Complete Paging Command Paging Request Paging (To be continued) 移動被叫(一) 四川偉創(chuàng)科技 95 MS BSC BTS MSC Assignment Request Channel activation ack Assignment mand establish indication Assignment Complete Assignment Complete Deactivate SACCH Release request Release confirm RF Channle release RF Channel release ack Alerting Connect Connect acknowledge SABM UA Channel activation (End) 移動被叫(二) 四川偉創(chuàng)科技 96 MS BSC Channel activation ack Channel activation Encryption mand Channel required Complete Layer 3 Info. Authentication request TMSI reallocation plete Cipher Mode Complete SABM(loc_upd_req) Immediate assign mand establish indication BTS Channel request UA(loc_upd_req) Cipher Mode Command Immediate assignment MSC Authentication response Location updating accept Cipher Mode Command Cipher Mode Complete (To be continued) 位置更新(一) 四川偉創(chuàng)科技 97 MS BSC BTS MSC Channel Release Clear Command RF Channle release DISC Deactivate SACCH RF Channel release ack Release Indication UA Clear Complete (End) 位置更新(二) 四川偉創(chuàng)科技 98 MS BSC BTS1 BTS2 Channel activation Channel activation ack Measurement result Handover mand Measurement report Handover access Handover plete SABM UA Handover plete Handover performed (to msc) Physical information establish indication Handover detection BSC內(nèi)部切換 四川偉創(chuàng)科技 99 MS MSC BSS1 BSS2 Handover request Handover required Handover request ack Handover mand Handover access Handover plete SABM UA Handover plete Clear plete Physical information Handover detect Clear mand MSC內(nèi)部切換 四川偉創(chuàng)科技 100 謝謝!
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