3g call fllow short

1. FACH (BCH) UE read system info 2. UE send request signal to Nb via PRACH till it get AICH 3. When UE get AICH 4. UE request RRC setup via RACH to RNC 5. RNC request Radio bearer setup to Nb 6. Nb respond RB setup completed to RNC 8. RNC response to UE RB info to UE 9. UE respond RRC setup completed via DCCH 10.UE request Location update request to RNC including Cap. IMSI 11. RNC forward LU request to MSC 12. MSC request that information to HLR 13. HLR reqsponse subscriber information to MSC 14. MSC respond to RNC NAS (Autentication, accounting,access) 15. RNC DT to UE Aut. request via RRC (DCCH) 16. UE respond autentication request to RNC 17. RNC DT to MSC 18. MSC grant LU 19. RNC respond UE LU granted 20. RNC request deletion of DCCH channel to UE 21. UE ack 22. RNC req Nb deletion RB channel 23. Nb Ack deletion of RB

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7/21/2019 3G Call Fllow Short

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1. FACH (BCH) UE read system info2. UE send request signal to Nb via PRACH till it get AICH3. When UE get AICH4. UE request RRC setup via RACH to RNC5. RNC request Radio bearer setup to Nb6. Nb respond RB setup completed to RNC8. RNC response to UE RB info to UE9. UE respond RRC setup completed via DCCH10.UE request Location update request to RNC including Cap. IMSI11. RNC forward LU request to MSC12. MSC request that information to HLR13. HLR reqsponse subscriber information to MSC14. MSC respond to RNC NAS (Autentication, accounting,access)15. RNC DT to UE Aut. request via RRC (DCCH)16. UE respond autentication request to RNC17. RNC DT to MSC18. MSC grant LU19. RNC respond UE LU granted20. RNC request deletion of DCCH channel to UE21. UE ack22. RNC req Nb deletion RB channel23. Nb Ack deletion of RB

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