Tech-invite 3GPPspace IETFspace

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Content for TS 43.129 Word version: 18.0.0

0… 4…

4 Architecture and principles p. 12

4.1 Reference architecture p. 12

4.2 Handover principles p. 12

4.2.1 General p. 12

4.2.2 PS Handover preparation phase p. 13

4.2.3 PS Handover execution phase p. 14

4.2.4 PS Handover Network Node Responsibilities p. 14

4.3 Protocol architecture p. 14

4.3.1 User plane overview p. 14

4.3.2 Control plane overview p. 14

4.3.3 Physical Layer p. 15

4.3.3.1 Shared Channels p. 15

4.3.3.1.1 General p. 15

4.3.4 RLC/MAC p. 15

4.3.5 Radio Resource (RR) p. 16

4.3.6 BSSGP p. 16

4.3.7 Overview of PS Handover Signalling Messages p. 16

4.3.7.1 PS handover signalling messages on the Um interface p. 16

4.3.7.2 PS handover signalling messages on the Gb interface p. 16

4.3.7.3 PS handover signalling messages on the Gn interface p. 17

4.3.7.4 PS handover signalling messages on the Up interface |R7| p. 18

4.4 Identifiers p. 18

4.4.1 NSAPI, PFI, RAB ID relation during inter-RAT, inter-mode UTRAN/GERAN Iu PS handover p. 19

4.4.2 NSAPI, PFI, EPS Bearer ID relation during inter-RAT GERAN / E-UTRAN PS handover |R8| p. 20

5 Signalling procedures p. 20

5.1 GERAN (A/Gb mode) → GERAN (A/Gb mode) handover p. 20

5.1.1 Intra Cell p. 20

5.1.2 Intra BSS p. 20

5.1.2.1 General p. 20

5.1.2.2 Intra BSS HO; Preparation phase p. 21

5.1.2.3 Intra BSS HO; Execution phase p. 22

5.1.2.4 Intra BSS Handover - Optimised p. 23

5.1.3 Intra SGSN p. 25

5.1.3.1 Intra SGSN/Inter BSS HO, Preparation phase p. 25

5.1.3.2 Intra SGSN/Inter BSS HO, Execution phase p. 26

5.1.4 Inter SGSN p. 28

5.1.4.1 Inter SGSN HO, Preparation phase p. 28

5.1.4.2 Inter SGSN HO, Execution phase p. 31

5.2 Inter-RAT/mode handover (GERAN A/Gb mode → UTRAN/ GERAN Iu mode) p. 35

5.2.1 Intra SGSN p. 35

5.2.1.1 Intra-SGSN GERAN A/Gb mode to UTRAN/GERAN Iu mode HO; Preparation phase p. 35

5.2.1.2 Intra-SGSN GERAN A/Gb mode to UTRAN/GERAN Iu mode HO; Execution phase p. 37

5.2.2 Inter SGSN p. 40

5.2.2.1 Inter-SGSN GERAN A/Gb mode to UTRAN/GERAN Iu mode HO; Preparation phase p. 40

5.2.2.2 Inter-SGSN GERAN A/Gb mode to UTRAN/GERAN Iu mode HO; Execution phase p. 42

5.3 Inter-RAT/mode Handover (UTRAN/GERAN Iu mode → GERAN A/Gb mode) p. 46

5.3.1 Intra SGSN p. 46

5.3.1.1 Inter RAT/mode UTRAN/GERAN Iu mode to GERAN A/Gb mode PS HO; Preparation phase p. 46

5.3.1.2 Inter RAT/mode UTRAN/GERAN Iu mode to GERAN A/Gb mode PS HO; Execution phase p. 48

5.3.2 Inter SGSN p. 51

5.3.2.1 Inter RAT/mode UTRAN/GERAN Iu mode to GERAN A/Gb mode PS HO; Preparation phase p. 51

5.3.2.2 Inter RAT UTRAN/GERAN Iu mode to GERAN A/Gb mode PS HO; Execution phase p. 53

5.3a Inter-RAT Handover (GERAN A/Gb mode to E-UTRAN) |R8| p. 56

5.3a.1 General p. 56

5.3a.2 Preparation phase p. 56

5.3a.3 Execution phase p. 57

5.3b Inter-RAT Handover (E-UTRAN to GERAN A/Gb mode) |R8| p. 57

5.3b.1 General p. 57

5.3b.2 Preparation phase p. 57

5.3b.3 Execution phase p. 57

5.4 Handover reject p. 58

5.4.1 General p. 58

5.4.2 Inter-SGSN HO Reject; Signalling procedure p. 58

5.5 Handover cancel p. 58

5.5.1 General p. 58

5.5.2 Signalling procedures p. 59

5.5.2.1 Inter-SGSN case, GERAN A/Gb mode→ GERAN A/Gb mode p. 59

5.5.2.2 Inter-SGSN case, GERAN A/Gb mode→ UTRAN/GERAN Iu mode p. 60

5.5.2.3 Inter-SGSN case, UTRAN/GERAN Iu mode→ GERAN A/Gb mode p. 61

5.5.2.4 Inter-SGSN, GERAN A/Gb mode → E-UTRAN |R8| p. 61

5.5.2.5 Inter-SGSN case, E - UTRAN→ GERAN A/Gb mode |R8| p. 61

5.6 Container handling p. 61

5.6.1 Contents of the containers p. 63

5.6.1.1 Contents of the GERAN A/Gb mode or GAN mode → GERAN A/Gb mode Transparent Containers p. 64

5.6.1.1.1 Source BSS to Target BSS Transparent Container p. 64

5.6.1.1.2 Target BSS to Source BSS Transparent Container p. 64

5.6.1.2 Contents of the GERAN A/Gb mode or GAN mode → UTRAN Transparent Containers p. 64

5.6.1.2.1 Source to Target Transparent Container p. 64

5.6.1.2.2 Target to Source Transparent Container p. 65

5.6.1.3 Contents of the UTRAN → GERAN A/Gb Mode or GAN mode Transparent Containers p. 65

5.6.1.3.1 Source BSS to Target BSS Transparent Container p. 65

5.6.1.3.2 Target BSS to Source BSS Transparent Container p. 65

5.6.1.4 Contents of the GERAN A/Gb mode → GERAN Iu mode Transparent Containers p. 66

5.6.1.4.1 Source to Target Transparent Container p. 66

5.6.1.4.2 Target to Source Transparent Container p. 66

5.6.1.5 Content of GERAN Iu mode → GERAN A/Gb mode Transparent Containers p. 66

5.6.1.5.1 Source BSS to Target BSS Transparent Container p. 66

5.6.1.5.2 Target BSS to Source BSS Transparent Container p. 66

5.6.1.6 Contents of the GERAN A/Gb mode → GAN mode Transparent Containers |R7| p. 67

5.6.1.6.1 Source BSS to Target BSS Transparent Container p. 67

5.6.1.6.2 Target BSS to Source BSS Transparent Container p. 67

5.6.1.7 Contents of the GERAN A/Gb mode → E-UTRAN Transparent Containers |R8| p. 67

5.6.1.7.1 Source to Target Transparent Container p. 67

5.6.1.7.2 Target to Source Transparent Container p. 67

5.6.1.8 Contents of the E-UTRAN → GERAN A/Gb mode Transparent Containers |R8| p. 68

5.6.1.8.1 Source BSS to Target BSS Transparent Container p. 68

5.6.1.8.2 Target BSS to Source BSS Transparent Container p. 68

5.7 PS Handover Failure p. 68

5.7.1 Preparations Phase Failure Scenarios p. 68

5.7.1.1 PS Handover preparation phase failure scenarios on the Um interface p. 68

5.7.1.2 PS Handover preparation phase failure scenarios on the Gb interface p. 69

5.7.1.3 PS Handover preparation phase failure scenarios on the Gn interface p. 69

5.7.1.4 PS Handover preparation phase failure scenarios on the Up interface |R7| p. 69

5.7.2 Execution Phase Failure Scenarios p. 70

5.7.2.1 Execution phase failures on the Um interface p. 70

5.7.2.1.1 Initial Access Failure in the Target Cell during PS handover p. 70

5.7.2.1.2 Radio contact with the MS is lost: p. 71

5.7.2.2 Execution phase failures on the Gb interface p. 73

5.7.2.3 Execution phase failures on the Gn interface p. 74

5.8 GAN Handover |R7| p. 74

5.8.1 Intra-SGSN Handover (GERAN A/Gb mode → GAN mode handover) p. 74

5.8.1.1 Intra SGSN PS Handover, Preparation phase p. 74

5.8.1.2 Intra SGSN PS Handover, Execution phase p. 75

5.8.2 Intra-SGSN Handover (GAN mode → GERAN A/Gb mode handover) p. 75

5.8.2.1 Intra SGSN PS Handover, Preparation phase p. 75

5.8.2.2 Intra SGSN PS Handover, Execution phase p. 76

5.8.3 Inter-SGSN Handover (GERAN A/Gb mode → GAN mode handover) p. 76

5.8.3.1 Inter SGSN PS Handover, Preparation phase p. 76

5.8.3.2 Inter SGSN PS Handover, Execution phase p. 76

5.8.4 Inter-SGSN Handover (GAN mode → GERAN A/Gb mode handover) p. 76

5.8.4.1 Inter SGSN PS Handover, Preparation phase p. 76

5.8.4.2 Inter SGSN, Execution phase p. 77

5.8.5 Inter RAT Handover; Intra SGSN (UTRAN → GAN mode handover) p. 77

5.8.5.1 Intra SGSN PS Handover, Preparation phase p. 77

5.8.5.2 Intra SGSN PS Handover, Execution phase p. 78

5.8.6 Inter RAT Handover; Intra SGSN (GAN mode →UTRAN handover) p. 78

5.8.6.1 Intra SGSN PS Handover, Preparation phase p. 78

5.8.6.2 Intra SGSN, Execution phase p. 78

5.8.7 Inter RAT Handover; Inter SGSN (UTRAN → GAN mode handover) p. 79

5.8.7.1 Inter SGSN PS Handover, Preparation phase p. 79

5.8.7.2 Inter SGSN PS Handover, Execution phase p. 79

5.8.8 Inter RAT Handover; Inter SGSN (GAN mode → UTRAN handover) p. 79

5.8.8.1 Inter SGSN PS Handover, Preparation phase p. 79

5.8.8.2 Inter SGSN PS Handover, Execution phase p. 79

6 Radio interface Signalling p. 79

6.1 PS Handover Signalling (Um) p. 79

6.1.1 General p. 79

6.1.2 Overview of PS Handover messages p. 80

6.1.2.1 GERAN A/Gb mode/GAN mode to GERAN A/Gb mode PS Handover p. 80

6.1.2.2 UTRAN/GERAN Iu mode to GERAN A/Gb mode/GAN mode PS Handover p. 80

6.1.2.3 GERAN A/Gb mode to GERAN Iu mode PS Handover p. 81

6.1.2.4 GERAN A/Gb mode/GAN mode to UTRAN mode PS Handover p. 81

6.1.2.5 GERAN A/Gb mode to GAN mode PS Handover |R7| p. 82

6.1.2.6 GERAN A/Gb mode to E-UTRAN PS Handover |R8| p. 82

6.1.2.7 E-UTRAN to GERAN A/Gb mode PS Handover |R8| p. 82

6.1.3 RLC/MAC segmentation p. 83

6.1.4 Inter RAT/mode PS Handover to GERAN A/Gb p. 83

6.1.5 Inter RAT/mode PS Handover from GERAN A/Gb p. 83

6.2 Mechanisms for Initial Access in the Target Cell p. 83

6.2.1 General p. 83

6.2.2 Synchronisation of handovers p. 83

6.2.3 Option 1 - Downlink Data sent after performing access in the target cell p. 84

6.2.3.1 Unsynchronised Networks Call Flow p. 84

6.2.3.2 Synchronised Networks Call Flow p. 85

6.2.4 Option 2 - Downlink Data sent before performing access in the target cell (Blind Transmission) p. 85

6.2.4.1 Unsynchronised Networks Call Flow p. 85

6.2.4.2 Synchronised Network Call Flow p. 86

6.3 Methods for triggering PS Handover p. 87

A (Normative) Agreed handover principles p. 88

A.1 Agreed handover principles p. 88

B PS Handover Primitives p. 90

B.1 Overview p. 90

B.2 Primitives in Source BSS p. 90

B.3 Primitives in Old SGSN p. 91

B.4 Primitives in New SGSN |R13| p. 92

B.5 Primitives in Target BSS p. 93

B.6 Primitives in MS p. 93

$ Change History p. 94