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Content for  TR 23.924  Word version:  17.0.0

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0  Introductionp. 5

The solution for support of the Intra Domain Connection of RAN Nodes to Multiple CN Nodes for GSM and UMTS systems in TS 23.236 has some issues for MSC Pool with existing deployments and implementations, e.g. upgrade of existing nodes. This TR studies whether these issues can be resolved by deploying a function above the BSC/RNC nodes which provides similar functions as the NNSF in BSC/RNC nodes that is specified in TS 23.236.
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1  Scopep. 6

This Technical Report evaluates the feasibility of implementing a function above the BSC/RNC nodes to provide similar functions as the NNSF function in BSC/RNC nodes that is specified in TS 23.236. This Technical Report also identifies the impacts on specifications.

2  Referencesp. 6

The following documents contain provisions which, through reference in this text, constitute provisions of the present document.
  • References are either specific (identified by date of publication, edition number, version number, etc.) or non specific.
  • For a specific reference, subsequent revisions do not apply.
  • For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document.
[1]
TR 21.905: "Vocabulary for 3GPP Specifications".
[2]
TS 23.236: "Intra-domain connection of Radio Access Network (RAN) nodes to multiple Core Network (CN) nodes".
[3]
TS 25.413: "UTRAN Iu interface Radio Access Network Application Part (RANAP) signalling".
[4]
TS 23.251: "Network sharing; Architecture and functional description".
[5]
TS 48.008: "3GPP TS 48.008: "Mobile Switching Centre - Base Station System (MSC BSS) interface; Layer 3 specification".
[6]
ITU-T Recommendation Q.714: "Specifications of Signalling System No. 7 - Signalling connection control part (SCCP): Signalling connection control part procedures".
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3  Definitions, symbols and abbreviationsp. 6

3.1  Definitionsp. 6

For the purposes of the present document, the terms and definitions given in TR 21.905 and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in TR 21.905.
Serving Node Selection Function:
A logical function above the BSC/RNC nodes used to assign an MSC Server to serve a mobile station and subsequently route the traffic to the assigned network resource.
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3.2  Abbreviationsp. 6

For the purposes of the present document, the terms and definitions given in TR 21.905 and TS 23.236 and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in TR 21.905 and TS 23.236.
SNRI
SCCP Network Resource Identifier
SNSF
Serving Node Selection Function
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