TSG Radio Access Network (TSG RAN) is responsible for the definition of the functions, requirements and interfaces of the UTRA/E-UTRA network in its two modes, FDD & TDD. More precisely: radio performance, physical layer, layer 2 and layer 3 RR specification in UTRAN/E-UTRAN; specification of the access network interfaces (Iu, Iub, Iur, S1 and X2); definition of the O&M requirements in UTRAN/E-UTRAN and conformance testing for User Equipment and Base Stations.

Useful links and information

RAN Terms of Reference

Approved following the 3GPP OP meeting #20 in Moscow, 7 October 2008

The TSG Radio Access Network (TSG-R) is responsible for the UTRAN and evolved UTRAN, including their internal structures, of systems based on 3GPP specifications for evolved 3G and beyond.

Specifically it has a responsibility for:

• Radio aspects of Terminal Equipment and evolved Terminal Equipment and evolved UTRAN functions (FDD & TDD), requirements and interfaces.
• Management of work items placed under its responsibility.

Addressing the following areas of work:

• Radio Layer 1 specification;
• Radio Layer 2 specification;
• Radio Layer 3 specification;
• Iub specification (including logical O&M);
• Iur specification;
• Iu specification;
• Iuant specification;
• S1 specification including O&M aspects;
• X2 specification including O&M aspects;
• UTRAN and evolved UTRAN O&M requirements;
• Transport of implementation specific O&M between the Management System and node B/e Node B
• Conformance test specifications for testing of all aspects of base stations and evolved base stations;
• Specifications for radio performance and RF system aspects
• Conformance test specification for evolved UE • .
• Liaising with other TSGs, in particular TSG SA, to ensure overall co-ordination.
• Elaborating on behalf of 3GPP the submission to ITU-R relating to the specification of IMT advanced systems