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LTE Signaling Flow. Content Interface and protocol Signaling Flow of S1 Interface Signaling Flow of X2 Interface Signaling Flow of Basic Service.

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Presentation on theme: "LTE Signaling Flow. Content Interface and protocol Signaling Flow of S1 Interface Signaling Flow of X2 Interface Signaling Flow of Basic Service."— Presentation transcript:

1 LTE Signaling Flow

2 Content Interface and protocol Signaling Flow of S1 Interface Signaling Flow of X2 Interface Signaling Flow of Basic Service

3 Network architecture and interfaces

4 Functional division of EPC and E-UTRAN

5 Control Plane Protocol

6 User Plane Protocol

7 Signaling and data flow Signaling flow Data flow

8 EPS bearer Non-GBR bearer E-RAB Data Radio Bearer Default Bearer What is bearer ? An EPS bearer uniquely identifies traffic flows that receive a common QoS treatment between a UE and a PDN GW

9 EPS Bearer Service Architecture

10 Concept of Connection Uu ( X1 ) interface S1 interface NAS signaling connection UE- associated logical S1- connection

11 Content Interface and protocol Signaling Flow of S1 Interface Signaling Flow of X2 Interface Signaling Flow of Basic Service

12 S1 Setup

13 eNB Configuration Update

14 MME Configuration Update

15 Content Interface and protocol Signaling Flow of S1 Interface Signaling Flow of X2 Interface Signaling Flow of Basic Service

16 X2 Setup

17 eNB Configuration Update

18 Load Indication

19 Resource Status Request

20 Resource Status Reporting Initiation

21 Content Interface and protocol Signaling Flow of S1 Interface Signaling Flow of X2 Interface Signaling Flow of Basic Service

22 PLMN selection and cell selection

23 System Information Broadcast

24 Random access procedure

25 UE Attach

26 UE Detach( power off in idle)

27 UE Detach( power off in connected)

28 UE Detach(no power off in idle)

29 UE Detach(no power off in connected)

30 Paging(system information changed)

31 Paging(MME trigger)

32 Service Request(UE trigger)

33 TAU in Idle(no active identifier)

34 TAU in Idle(setup active identifier)

35 TAU in Connected

36 E-RAB Setup

37 E-RAB Release

38 RRC Connection Re-establishment

39 UE Handover between one eNB’s cells eNB

40 UE Handover between the different eNB’s cells(through X2 interface)

41 UE Handover between the different eNB’s cells(through S1 interface)

42


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