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RAN WG2 is in charge of the Radio Interface architecture and protocols (MAC, RLC, PDCP), the specification of the Radio Resource Control protocol, the strategies of Radio Resource Management and the services provided by the physical layer to the upper layers.
Within the scope of TSG RAN, RAN WG2 is responsible for the development of specifications dealing with UTRA, Evolved UTRA, and beyond.


Terms of Reference


The latest terms of reference were approved at RAN#53 in document RP-110964.


RAN WG2 is responsible for:


  • Specification of the radio interface architecture and protocol termination
  • Specification of radio interface protocols between UE and RAN,
  • Specification of radio interface protocols common to RAN and GERAN
  • Maintaining the specifications for the protocol used to configure UE loop back functionality for UTRAN
  • Specification of radio interface parameters to be exchanged between RNCs and between RNCs and BSCs in case of SRNS relocation
  • For EUTRAN, specification of the radio interface parameters to be exchanged between eNodeBs in case of inter eNodeB handover, and between eNodeB and RNC/BSC in case of inter-RAT handovers
  • Stage 2 Specifications of the services offered by the physical layer to upper layers
  • Specification of Cell selection and re-selection procedures
  • Specification of UE capabilities for UE - RAN interface (in collaboration with RAN WG1 for Layer 1 capabilities)
  • Definition of RRM strategies to be supported by RAN
  • Definition of protocol methodology in RAN specifications
  • Identification of the requirements for UE protocol tests to be defined by TSG RAN WG5, for new functions under RAN WG2 responsibility
  • For EUTRAN, specification of radio interface protocols between UE and positioning server
  • Specification of radio measurements reported to the OAM domain and the radio interface protocols used to collect them

Useful links and information

About RAN WG2 List of elected officials
Documents Meeting documents
  Work items
Meetings Next meeting information & previous meeting reports and documents
  Liaisons Statements
  Full RAN WG2 meeting calendar
General info Email exploder lists


RAN Working groups and Ad Hoc groups 
TSG RAN Plenary  
TSG RAN WG1 Radio Layer 1 specification
TSG RAN WG2 Radio Layer 2 and Radio Layer 3 RR specification
TSG RAN WG3 Iub Iur and Iu specification - UTRAN O&M requirements
TSG RAN WG4 Radio performance and protocol aspects (system) - RF parameters and BS conformance
TSG RAN WG5 Mobile terminal conformance testing
TSG RAN WG6 Legacy RAN radio and protocol
TSG RAN AHG1 Ad-hoc group on ITU (internal) co-ordination
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