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TR 23.704 (SA2)
Study on CS/PS coordination in Shared Network

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(W-zip) V13.0.0    2014/12    130 p.


Rapporteur:  Mr. Gustafsson, Roland
See also:  Network-Sharing-related TS/TR    


The present document investigates relevant scenarios and possible solutions to enhance the Circuit Switched (CS) / Packet Switched (PS) Coordination in a shared UTRAN/GERAN network as currently specified in TS 23.251.

Within this technical report relevant mobility scenarios shall be investigated and it shall be evaluated per scenario if any issues with CS/PS Coordination can be expected. The investigation shall be done for non-supporting UEs and for any UE in shared networks where no Multiple PLMN list is broadcasted. Solutions to solve found issues shall be evaluated and agreed for subsequent normative specification.

The scenarios that need to be handled will at least include:
  • CS handover to UTRAN/GERAN (DTM/non-DTM for GERAN);
  • PS Handover to UTRAN/GERAN (DTM/non-DTM for GERAN);
  • Redirection;
  • Cell reselection;
  • CSFB;
  • rSRVCC and SRVCC;
  • PLMN selection at handover based on UE capability;
  • Registration to PS domain in a shared network after CS only registration has been performed.


 

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1   Scope   Word-p. 9
2   References
3   Definitions and abbreviations
4   General issues with CS/PS coordination
5   Scenarios
5.1   CS Handover to UTRAN/GERAN Scenarios
5.2   PS Handover to UTRAN/GERAN Scenarios
5.2.1   GERAN MOCN, non-DTM, no combined update procedures
5.2.2   Pool Centric: PS Handover to GERAN with no DTM support, user is SGs registered in the target network, no change of MSC pool
5.2.3   Operator Centric: PS Handover to a GERAN without DTM support, user is SGs registered in the target network
5.2.4   GERAN MOCN, non-DTM combined update procedures
5.2.5   GERAN GWCN, non-DTM, no combined update procedures
5.2.6   GERAN GWCN, non-DTM, combined update procedures   Word-p. 28
5.2.7   UTRAN/GERAN MOCN, no combined update procedures
5.2.8   Pool Centric: PS Handover to UTRAN or GERAN with DTM support, user is SGs registered in the target network, no change of MSC pool
5.2.9   Operator Centric: PS Handover to a UTRAN or GERAN with DTM support, user is SGs registered in the target network
5.2.10   UTRAN/GERAN MOCN, combined update procedures      Up
5.2.11   UTRAN/GERAN GWCN, no combined update procedures
5.2.12   UTRAN/GERAN GWCN, combined update procedures   Word-p. 34
5.3   SRVCC with SGs registration scenarios

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