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Content for  TR 23.810  Word version:  8.0.0

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1  ScopeWord‑p. 6

The objective is to study if there is enhancement needed to the current service interaction management architecture (e.g. SCIM as part of AS and Service Broker as part of OSA SCS) in order to satisfy requirements in TS 22.228.
This technical report contains the results of a study on service interaction management architecture with focus on the following aspects:
  • considering through scenarios, if the current service interaction management architecture sufficiently manages interactions between application servers, within the Home Network or on third party servers, and
  • determine, through a functional element architecture study, whether there is a need for enhancement of the architecture, as well as any required extensions to the current IMS protocols and procedures.
    In addition, alternative mechanisms to improve preventing interacting services may be identified.
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2  References

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]
TS 23.228: "IP Multimedia Subsystem (IMS); Stage 2.
[2]
TR 21.905: "Vocabulary for 3GPP Specifications".
[3]
TS 23.002: "Network Architecture".
[4]
TS 29.328: "IP Multimedia (IM) Subsystem Sh Interface; Signaling Flows and Message Contents".
[5]
TS 29.228: "IP Multimedia (IM) Subsystem Cx and Dx Interfaces; Signaling Flows and Message Contents".
[6]
TS 23.218: "IP Multimedia (IM) session handling; IM call model; Stage 2".
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3  Definitions and Abbreviations

3.1  Definitions

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.
IMS Service:
An IMS service resides on an Application Server and can be invoked via initial Filter Criteria from S-CSCF.
IMS Service Interaction:
When executing more than one IMS services in the same session, an IMS service interaction occurs when one or more of those services interact in a way that may differ from the expected behaviour when they are executed separately.
IMS Service Integration:
Once interactions among multiple IMS services can be appropriately managed, it enables integration of multiple IMS services for better customer experience.
Service Broker:
Logical function that manages service interactions among services hosted on a single or multiple Application Servers of any of the following types: IMS Application Servers (i.e. IM-SSF, SIP AS, OSA SCS).
Static IMS Service Interaction Management:
IMS Service interaction management is static if the management of the interactions is based on the predictable and predefined service detection and resolution information.
Dynamic IMS Service Interaction Management:
IMS Service interaction management is dynamic if the management of the interactions is based on dynamic information, e.g. the content of a message or the results from run-time.
Centralized Service Brokering Function:
A centralized Service Brokering function manages service interactions and integration in a single entity of Service Broker.
Distributed Service Brokering Function:
A distributed Service Brokering function constitutes multiple entities of Service Broker.
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3.2  AbbreviationsWord‑p. 7

For the purposes of the present document, the abbreviations given in TR 21.905 and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in TR 21.905.
ISB
IMS Service Broker
SB
Service Broker

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