4G信令流程
1.1 信令流程:
LTE信令主要模組:
Ø 隨機接入
Ø 尋呼
Ø RRC連線建立、重配、重建立、釋放
Ø 測量
1.1.1 隨機接入

1.1.2 尋呼
1.1.3 RRC連線建立、重配、重建立、釋放
1.14 測量
2.1 CSFB信令流程
↔
NAS RRC MAC PDCP RLC
UE
1.Rrc Connection Request→
eNB
MME
Msg1→
RAR←
Msg3→
Msg4←
2.Rrc Connection Setup←
3.Rrc Connection Complete→
4.S1AP_InitialUEMessageMsg(Attach Request)→ a) TAI;
b) E-UTRAN CGI;
c) NAS-PDU:Attach Request訊息;
d) RRC Establishment Cause;
6.DownLinkTransportMsg(Authentication Request)←
5.S1AP_DownLinkNasTransportMsg(Authentication Request)←
7.UpLinkTransportMsg(Authentication Response)→
8.S1AP_UpLinkNasTransportMsg(Authentication Response)→
10.DownLinkTransportMsg(Nas_SecurityCommand)←
9.S1AP_DownLinkNasTransportMsg(Nas Security Command)←
11.UpLinkTranportMsg(Nas_SecurityComplete)→
12.S1AP_UpLinkNasTransportMsg(Nas Security Complete)→
. cfrd
13.S1AP_InitialContextSetupRequestMsg(Attach Accept)←
a) MME UE S1AP ID;
b) eNB UE S1AP ID;
c) UE Aggregate Maximum Bit Rate;
d) E-RAB to be Setup List:
i) E-RAB ID;
ii) E-RAB Level QoS Parameters,中包含QCI為5~9(預設E-RAB);
iii) Transport Layer Address;
iv) GTP-TEID;
v) NAS-PDU;
e) UE security capabilities;
f) Security Key;
g) Trace Activation(Optional);
h) Handover Restriction List(Optional);
i) UE Radio Capability(Optional);
j) Subscriber Profile ID for RAT/Frequency priority(Optional);
k) CS Fallback Indicator(Optional);
l) SRVCC Operation Possible(Optional)
15.UECapabilityInformation→
16.S1AP_UECapabilityInformationMsg→
17.RRC_SecurityModeCommand←
18.RrcConnectionReconfiguration←
19.RRC_SecurityModeComplete→
20.RrcConnectionReconfigurationComplete→
21.S1AP_InitialContextSetupReponseMsg→
a) 成功建立的E-RAB的RAB ID和傳輸層地址;
22.Attach Accept←
23.Attach Complete→
24.S1AP_UpLinkNasTransportMsg→
25.UlInfomationTransport(Detach Request)→
26.S1AP_UpLinkNasTransportMsg→
a) eNB UE S1AP ID;
b) TAI;
c) E-UTRAN CGI;
d) NAS-PDU:Detach Request訊息;
e) RRC Establishment Cause;
28.DlInformationTransport(Detach Accept)←
27.S1AP_DownLinkNasTransportMsg(Detach Accept)←
30.RrcConnectionRelease←
29.S1AP_UeContextReleaseCommandMsg←
31.S1AP_UeContextReleaseCompleteMsg→
信令
翻譯
Attach request
附著請求
rrcConnectionRequest
RRC連線請求
rrcConnectionSetup
RRC連線建立
rrcConnectionSetupComplete
RRC連線設定完成
rrcConnectionReconfiguration
rrc連線重配置
dl Information Transfer
DL資訊傳輸
rrc Connection Reconfiguration Complete
rrc連線重配置完成
Security protected NAS message
安全保護的NAS訊息
Authentication request
認證請求
Authentication response
驗證響應
Unknown(0x077B)
未知(0x077B)
ulInformationTransfer
UL資訊傳輸
dlInformationTransfer
Security mode command
安全模式命令
Security mode complete
安全模式完成
Unknown(0x0790)
未知(0x0790)
ueCapabilityEnquiry
UE能力查詢
ueCapabilityInformation
UE能力資訊
securityModeCommand
RRC連線重配置
rrcConnectionReconfigurationComplete
Attach accept
附著接受
Activate default EPS bearer context request
啟用預設EPS承載上下文請求
Activate default EPS bearer context accept
啟用預設EPS承載上下文接受
Attach complete
附著完成
Unknown(0x072D)
未知(0x072D)
RrcConnectionRelease
rrc釋放
4G信令流程
1.1 信令流程:
LTE信令主要模組:
Ø 隨機接入
Ø 尋呼
Ø RRC連線建立、重配、重建立、釋放
Ø 測量
1.1.1 隨機接入




1.1.2 尋呼


1.1.3 RRC連線建立、重配、重建立、釋放






1.14 測量



2.1 CSFB信令流程
↔
NAS RRC MAC PDCP RLC
↔
NAS RRC MAC PDCP RLC
↔
UE
1.Rrc Connection Request→
eNB
MME
Msg1→
RAR←
Msg3→
Msg4←
2.Rrc Connection Setup←
3.Rrc Connection Complete→
4.S1AP_InitialUEMessageMsg(Attach Request)→ a) TAI;
b) E-UTRAN CGI;
c) NAS-PDU:Attach Request訊息;
d) RRC Establishment Cause;
6.DownLinkTransportMsg(Authentication Request)←
5.S1AP_DownLinkNasTransportMsg(Authentication Request)←
7.UpLinkTransportMsg(Authentication Response)→
8.S1AP_UpLinkNasTransportMsg(Authentication Response)→
10.DownLinkTransportMsg(Nas_SecurityCommand)←
9.S1AP_DownLinkNasTransportMsg(Nas Security Command)←
11.UpLinkTranportMsg(Nas_SecurityComplete)→
12.S1AP_UpLinkNasTransportMsg(Nas Security Complete)→
. cfrd
13.S1AP_InitialContextSetupRequestMsg(Attach Accept)←
a) MME UE S1AP ID;
b) eNB UE S1AP ID;
c) UE Aggregate Maximum Bit Rate;
d) E-RAB to be Setup List:
i) E-RAB ID;
ii) E-RAB Level QoS Parameters,中包含QCI為5~9(預設E-RAB);
iii) Transport Layer Address;
iv) GTP-TEID;
v) NAS-PDU;
e) UE security capabilities;
f) Security Key;
g) Trace Activation(Optional);
h) Handover Restriction List(Optional);
i) UE Radio Capability(Optional);
j) Subscriber Profile ID for RAT/Frequency priority(Optional);
k) CS Fallback Indicator(Optional);
l) SRVCC Operation Possible(Optional)
15.UECapabilityInformation→
16.S1AP_UECapabilityInformationMsg→
17.RRC_SecurityModeCommand←
18.RrcConnectionReconfiguration←
19.RRC_SecurityModeComplete→
20.RrcConnectionReconfigurationComplete→
21.S1AP_InitialContextSetupReponseMsg→
a) 成功建立的E-RAB的RAB ID和傳輸層地址;
22.Attach Accept←
23.Attach Complete→
24.S1AP_UpLinkNasTransportMsg→
25.UlInfomationTransport(Detach Request)→
26.S1AP_UpLinkNasTransportMsg→
a) eNB UE S1AP ID;
b) TAI;
c) E-UTRAN CGI;
d) NAS-PDU:Detach Request訊息;
e) RRC Establishment Cause;
28.DlInformationTransport(Detach Accept)←
27.S1AP_DownLinkNasTransportMsg(Detach Accept)←
30.RrcConnectionRelease←
29.S1AP_UeContextReleaseCommandMsg←
31.S1AP_UeContextReleaseCompleteMsg→
信令
翻譯
Attach request
附著請求
rrcConnectionRequest
RRC連線請求
rrcConnectionSetup
RRC連線建立
rrcConnectionSetupComplete
RRC連線設定完成
rrcConnectionReconfiguration
rrc連線重配置
dl Information Transfer
DL資訊傳輸
rrc Connection Reconfiguration Complete
rrc連線重配置完成
Security protected NAS message
安全保護的NAS訊息
Authentication request
認證請求
Authentication response
驗證響應
Unknown(0x077B)
未知(0x077B)
ulInformationTransfer
UL資訊傳輸
dlInformationTransfer
DL資訊傳輸
Security protected NAS message
安全保護的NAS訊息
Security mode command
安全模式命令
Security mode complete
安全模式完成
Unknown(0x0790)
未知(0x0790)
ulInformationTransfer
UL資訊傳輸
ueCapabilityEnquiry
UE能力查詢
ueCapabilityInformation
UE能力資訊
securityModeCommand
安全模式命令
rrcConnectionReconfiguration
RRC連線重配置
rrcConnectionReconfigurationComplete
rrc連線重配置完成
Security protected NAS message
安全保護的NAS訊息
Attach accept
附著接受
Activate default EPS bearer context request
啟用預設EPS承載上下文請求
Activate default EPS bearer context accept
啟用預設EPS承載上下文接受
Attach complete
附著完成
Unknown(0x072D)
未知(0x072D)
ulInformationTransfer
UL資訊傳輸
rrcConnectionReconfiguration
RRC連線重配置
rrcConnectionReconfigurationComplete
rrc連線重配置完成
RrcConnectionRelease
rrc釋放