EMM Scenario and Eleven EMM Cases

原文地址:?m=view&id=techdocs&no=6002

NOTE:初始状态,UE A是关机的,,并且在网络中没有UE A的UE上下文存在。

EMM case 1,Initial Attach(初始附着)

UE状态:“EMM-Deregistered,ECM/RRC-Idle”–>“EMM-Registered,ECM/RRC-Connected”

EMM case 2,Detach(去附着)

UE状态:“EMM-Registered,ECM/RRC-Connected”–>“EMM-Deregistered,ECM/RRC-Idle”

EMM case 3,由于用户不活动释放S1

UE状态:“EMM-Registered,ECM/RRC-Connected”–>“EMM-Registered,ECM/RRC-Idle”

EMM case 4,由于新的业务发起服务请求

UE状态:“EMM-Registered,ECM/RRC-Idle”—>“EMM-Registered,ECM/RRC-Connected”

EMM case 5,TAU

UE状态:“EMM-Registered,ECM/RRC-Idle”—>“EMM-Registered,ECM/RRC-Connected”—>“EMM-Registered,ECM/RRC-Idle”

EMM case 6,没有TAU的切换

UE状态:“EMM-Registered,ECM/RRC-Connected”–>“EMM-Registered,ECM/RRC-Connected”

EMM case 7,没有TAU的小区重选

UE状态:“EMM-Registered,ECM/RRC-Idle”–>“EMM-Registered,ECM/RRC-Idle”

EMM case 8,包含TAU的切换

UE状态:“EMM-Registered,ECM/RRC-Connected”–>“EMM-Registered,ECM/RRC-Connected”

EMM case 9,包含TAU的小区重选

UE状态:“EMM-Registered,ECM/RRC-Idle”–>“EMM-Registered,ECM/RRC-Connected”–>“EMM-Registered,ECM/RRC-Idle”

EMM case 10,移动到另一个城市

UE状态:“EMM-Registered,ECM/RRC-Connected”–>“EMM-Registered,ECM/RRC-Idle”–>“EMM-Deregistered,ECM/RRC-Idle”

UE A从城市1(正在服务或者在idle状态)移动到城市2。UE A移出了LTE的覆盖区外,并且从网络detach。在detach过程之后,UE A进入“EMM-Deregistered,ECM/RRC-Idle”状态。EMM case 11,在另一个城市初始附着

UE状态:“EMM-Deregistered,ECM/RRC-Idle”–>“EMM-Registered,ECM/RRC-Connected”

References

[1] Netmanias Technical Document, “LTE EMM and ECM State”, February 2013, ?id=1x_TechdocsForum_4G [2] 3GPP TS 24.301, “Non-Access-Stratum (NAS) Protocol for Evolved Packet System (EPS); Stage 3”. [3] 3GPP TS 23.401, “General Packet Radio Service (GPRS) Enhancements for Evolved Universal Terrestrial Radio Access Network (E-UTRAN) Access“. [4] NMC Consulting Group Report, “E2E LTE Network Design”, August 2010.

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EMM Scenario and Eleven EMM Cases

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