TR 23.851
Network Sharing –
Architecture and Functional description
V6.1.0 (Wzip)
2004/06 30 p.
- Rapporteur:
- Dr. Nilsson, Ulf
TeliaSonera AB
full Table of Contents for TR 23.851 Word version: 6.1.0
1 Scope p. 6
In the current mobile telephony marketplace, functionality that enables various forms of network sharing is becoming more and more important. These aspects have not really been addressed in either 2G or 3G systems, although there is functionality that supports a very basic type of network sharing in the current specifications within 3GPP. In TR 22.951, 3GPP has studied service requirements and functionality necessary for supporting a standardized network sharing.
The present document discusses issues and describes functionalities required for Network Sharing as outlined in TR 22.951. The intention is to present one (or more) architectural alternatives for achieving the required functionality within a 3GPP network. An important part of the work is to adapt the network functionality so that supporting mobile telephones that do not have any of the possibly new functionality being introduced for network sharing support can be handled in a more efficient way than in pre-Rel-6 networks.
2 References p. 6
3 Definitions, symbols and abbreviations p. 7
4 General Description p. 7
4.1 CN operator and Network Selection p. 9
4.1.1 Core network operator identity p. 9
4.1.2 System broadcast information for network sharing p. 9
4.1.3 Network selection solution alternatives p. 9
4.1.3.1 UE based solution p. 10
4.1.3.2 Broadcast channel based solution p. 10
4.1.3.3 Connected mode based solution p. 11
4.1.3.4 Behaviour of non-supporting UEs p. 12
4.1.4 Optimisation by Shared Network Domain areas p. 13
4.1.5 Attach/detach handling p. 13
4.1.5.1 Comparison p. 14
4.2 Relationship with Iu Flex p. 14
4.3 Assignment of CN operator and CN node p. 14
4.3.1 Description p. 14
4.3.2 Information flow for CN centric redirection p. 16
4.3.3 Connection-less interrogation in RAN Centric redirection p. 18
4.4 Network name display p. 19
4.5 Void
4.6 Usage of Gs interface p. 19
4.7 Pre-Rel-6 Functionality p. 20
4.8 HPLMN support p. 20
4.9 Information flow for RAN centric redirection p. 20
4.10 RAN Centric redirection architectural description aspects p. 22
5 Functional Description p. 23
5.1 MS Functions p. 23
5.2 RNC Functions p. 23
5.3 BSC Functions p. 23
5.4 MSC Functions p. 24
5.5 SGSN Functions p. 24
6 Charging and Accounting Aspects p. 24
7 Security Aspects p. 25
8 Conclusions p. 25
9 Open Issues p. 25
A Signaling flows for manual and automatic network selection p. 26
$ Change history p. 29
