Tech-invite 3GPPspace IETFspace

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Content for TR 43.901 Word version: 18.0.0

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5.1 Architecture 5.2 Protocol aspects 5.3 Security mechanisms 5.4 Multi-mode terminal operation 5.5 Emergency call support in GAN 5.6 Feasibility for support of services available through GERAN while in GAN mode 5.7 Other considerations

5 Study results p. 9

5.1 Architecture p. 9

5.1.1 Architecture for generic access interface p. 9

5.1.1.1 Functional architecture p. 9

5.1.1.2 Functional entities p. 10

5.1.1.2.1 Mobile Stations (MS) p. 10

5.1.1.2.2 Generic Access Network Controller (GANC) p. 10

5.1.1.3 Interfaces p. 11

5.1.1.3.1 A/Gb interfaces p. 11

5.1.1.3.2 Up interface p. 11

5.1.1.3.3 Wm interface p. 11

5.1.1.4 High level description of generic access p. 11

5.1.2 Signalling flows p. 11

5.1.2.1 Registration for generic access p. 11

5.1.2.2 Deregistration p. 13

5.1.3 Mobile originated call flow p. 14

5.1.4 Mobile terminated call flow p. 16

5.1.5 GPRS procedures p. 17

5.1.5.1 GAN-GRR user data transport channel p. 17

5.1.5.2 GPRS user data transport procedures p. 17

5.1.5.3 GPRS signalling and SMS transport procedures p. 17

5.1.5.4 Packet paging for GPRS data service p. 17

5.1.5.5 Packet paging for CS domain service p. 18

5.1.5.6 GPRS Suspend procedure p. 18

5.1.5.7 GPRS Resume procedure p. 18

5.2 Protocol aspects p. 18

5.2.1 New Generic Layer p. 18

5.2.1.1 CS domain signalling plane p. 18

5.2.1.2 CS domain user plane p. 20

5.2.1.3 PS domain signalling plane p. 21

5.2.1.4 PS domain user plane p. 22

5.2.2 Existing protocols p. 23

5.2.2.1 Standard 3GPP protocols p. 23

5.2.2.1.1 Short Message Service p. 23

5.2.2.1.2 GSM SMS services p. 24

5.2.2.1.3 GPRS SMS services p. 24

5.2.2.1.4 Supplementary services p. 24

5.2.2.2 Standard IP-based protocols p. 24

5.3 Security mechanisms p. 24

5.3.1 Security levels p. 24

5.3.2 Up interface security p. 25

5.4 Multi-mode terminal operation p. 25

5.4.1 Mechanism of mode selection in multi-mode terminals p. 26

5.4.2 PLMN selection p. 26

5.4.3 Re-selection between GERAN/UTRAN and GAN modes p. 27

5.4.3.1 Rove-in (from GERAN/UTRAN to GAN) p. 27

5.4.3.2 Rove-out (from GAN to GERAN/UTRAN) p. 27

5.4.3.3 Ping-pong avoidance between GAN and GERAN/UTRAN p. 27

5.4.4 Handovers between GAN and GERAN p. 28

5.4.4.1 Cell identifiers in generic access p. 28

5.4.4.1.1 GAN cell id for Location Services & billing p. 28

5.4.4.1.2 GAN cell id for handover-to-GAN p. 29

5.4.4.2 Handover to GAN p. 30

5.4.4.3 Handover to GERAN p. 32

5.4.4.4 Other handover considerations p. 33

5.4.5 Cell Change Order between GAN and GERAN p. 34

5.5 Emergency call support in GAN p. 34

5.6 Feasibility for support of services available through GERAN while in GAN mode p. 34

5.7 Other considerations p. 35

6 Potential impacts on current specifications p. 35

7 Summary and conclusion p. 35

$ Change History p. 36