NSN 2G_3G Interworking solution

[fon909]

Hi,

Apologies if the doc has been posted earlier. attaching NSN 2G - 3G Interworking solution, with following contents;


Summary of changes .............................................................................................4
1 Introduction ............................................................................................5
2 Roaming..................................................................................................6
2.1 Controlling inbound roaming ....................................................................7
2.1.1 International roaming................................................................................8
2.1.2 National roaming ......................................................................................8
2.1.3 Regional roaming ...................................................................................11
2.2 Controlling outbound roaming ................................................................12
2.2.1 Subscription Based Network Access......................................................12
2.3 Additional roaming control mechanisms.................................................14
3 Handovers.............................................................................................16
3.1 Handovers within WCDMA network .......................................................17
3.1.1 Soft and softer handovers ......................................................................18
3.1.2 Hard handovers......................................................................................20
3.1.3 Handovers in the MSC Server concept ..................................................25
3.2 Inter-system handovers..........................................................................26
3.2.1 Handover from WCDMA to GSM ...........................................................29
3.2.2 Handover from GSM to WCDMA ...........................................................31
3.2.3 Cell re-selection (PS Handover) between WCDMA and GSM ...............32
4 QoS in GSM-WCDMA interworking.....................................................36
5 Traffic balancing...................................................................................41
5.1 Service and load based handovers........................................................42
5.2 Handover control features related to national roaming ..........................47
5.3 IMSI Based Handover ............................................................................49
5.4 Multimode Radio Resource Management..............................................50
5.5 Inter-system direct access......................................................................52
5.6 Different access profiles for subscribers ................................................52
5.7 Network assisted cell change NACC......................................................53
6 OSS support for GSM-WCDMA interworking ....................................55
7 Dual-mode terminals in GSM/WCDMA environment.........................57


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