Tech-invite 3GPPspace IETFspace

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Content for TR 43.901 Word version: 16.0.0

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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

5.1 Architecture

5.1.1 Architecture for generic access interface

5.1.1.1 Functional architecture

5.1.1.2 Functional entities Word‑p. 10

5.1.1.2.1 Mobile Stations (MS)

5.1.1.2.2 Generic Access Network Controller (GANC)

5.1.1.3 Interfaces Word‑p. 11

5.1.1.3.1 A/Gb interfaces

5.1.1.3.2 Up interface

5.1.1.3.3 Wm interface

5.1.1.4 High level description of generic access

5.1.2 Signalling flows

5.1.2.1 Registration for generic access

5.1.2.2 Deregistration Word‑p. 13

5.1.3 Mobile originated call flow Word‑p. 14

5.1.4 Mobile terminated call flow Word‑p. 16

5.1.5 GPRS procedures Word‑p. 17

5.1.5.1 GAN-GRR user data transport channel

5.1.5.2 GPRS user data transport procedures

5.1.5.3 GPRS signalling and SMS transport procedures

5.1.5.4 Packet paging for GPRS data service

5.1.5.5 Packet paging for CS domain service Word‑p. 18

5.1.5.6 GPRS Suspend procedure

5.1.5.7 GPRS Resume procedure

5.2 Protocol aspects

5.2.1 New Generic Layer

5.2.1.1 CS domain signalling plane

5.2.1.2 CS domain user plane Word‑p. 20

5.2.1.3 PS domain signalling plane Word‑p. 21

5.2.1.4 PS domain user plane Word‑p. 22

5.2.2 Existing protocols Word‑p. 23

5.2.2.1 Standard 3GPP protocols

5.2.2.1.1 Short Message Service

5.2.2.1.2 GSM SMS services Word‑p. 24

5.2.2.1.3 GPRS SMS services

5.2.2.1.4 Supplementary services

5.2.2.2 Standard IP-based protocols

5.3 Security mechanisms

5.3.1 Security levels

5.3.2 Up interface security Word‑p. 25

5.4 Multi-mode terminal operation

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

5.4.2 PLMN selection

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

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

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

5.4.3.3 Ping-pong avoidance between GAN and GERAN/UTRAN

5.4.4 Handovers between GAN and GERAN Word‑p. 28

5.4.4.1 Cell identifiers in generic access

5.4.4.1.1 GAN cell id for Location Services & billing

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

5.4.4.2 Handover to GAN Word‑p. 30

5.4.4.3 Handover to GERAN Word‑p. 32

5.4.4.4 Other handover considerations Word‑p. 33

5.4.5 Cell Change Order between GAN and GERAN Word‑p. 34

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 Word‑p. 35

6 Potential impacts on current specifications

7 Summary and conclusion

$ Change History Word‑p. 36