The updated ToR, reflecting the re-organisation of the 3GPP TSGs in March 2005, were agreed by the Working Group CT5 and are submitted to the CT#28 (Jun 2005) plenary meeting for approval.
3GPP is a partnership project consisting of several Standardisation Development Organisations (SDOs) and is responsible for the specification of the 3rd Generation Mobile System. The 3GPP organisation consists of a Project Coordination Group (PCG), responsible for the steering activities within 3GPP and several Technical Specification Groups (TSGs), responsible for the delivery of the technical specifications.
Each TSG is divided into Working Groups to manage the
activities within the TSG. The TSG Core Network and Terminals (TSG-CT) is
responsible for the specifications of the Core Network part of systems based on
3GPP specifications (e.g. supplementary services, CAMEL, OSA, GPRS, MAP, Iu Call
Control and Mobility Management).
TSG CT is divided into 6 Working Groups, including CT5.
TSG CT is also responsible for the maintenance of GSM specifications which were
under the remit of SMG3. However, CT5 is not responsible for the maintenance of
any GSM specification.
CT5 develops Application Programming Interfaces (APIs) for the Open Service Access (OSA). The UMTS network provides these interfaces to facilitate service implementations. CT5 is responsible for the following specifications:
Stage 2 for the UMTS OSA Architecture (TS 23.198);
Stage 3 for the interfaces specific to the UMTS OSA (TS 29.198-series);
Definition of the interface classes, methods and detailed behaviour of those classes (TS 29.198-series);
IDL, WSDL, Java specifications of the UMTS OSA-specific interfaces (TS 29.198-series);
Functional mapping of OSA interfaces to UMTS network protocols (TR 29.998-series);
OSA interfaces at high level of abstractions (also known as Parlay X Web services 29.199-series).
The work of CT5 is based on the Service Requirements set by SA1 and on the 3GPP Architecture defined by SA2.
Inside 3GPP: direct relationship with SA1/SA2;
Joint meetings with ETSI TISPAN, the Parlay Consortium and 3GPP2 with the aim to work on a common technical basis for the standards, in the areas where the scopes overlap;
External organizations with which CT5 does not liaise directly, but which carry out similar kind of work: ITU-T (liaison via ETSI TISPAN).
Providing alignment with other Web Services specifications, CT5 utilizes specifications and profiles published by W3C, WS Interoperability Organization (WS-I) and OASIS.