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RAN4 - Radio Performance and Protocol Aspects

<UPDATED 2021-08-17>> Mr. Haijie Qiu (Samsung Electronics Co., Ltd / TTA)  and Mr. Andrey Chervyakov (Intel / ATIS) re-elected Vice Chairs of RAN WG4 by acclamation on 16.08.2021.

Within the 3GPP Technical Specification Group Radio Access Network (TSG RAN), 3GPP TSG RAN WG4 (RAN4) is responsible for the following aspects. RAN4 works on the Radio Frequency (RF) aspects of UTRAN/E-UTRAN/NR. RAN4 performs simulations and derives the minimum requirements for transmission and reception parameters, Radio Resource Management (RRM), and for channel demodulation and Channel State Information (CSI) reporting.

Once these requirements are set, the group defines the test procedures that will be used to verify them for BS, Repeater, Relay and Integrated Access Backhaul (IAB).

Requirements for other radio elements, like Repeaters, Relay, and IAB are specified in RAN4 as well. In addition, OTA requirements and testing methods for both BS and UE are defined in RAN4.

Terms of Reference

The latest terms of reference were approved at RAN#91-e in document RP-210786.

Useful links and information

About RAN WG4 List of elected officials
Documents Meeting documents
  Work items
Meetings Next meeting information & previous meeting reports and documents
  Liaisons Statements
  Full RAN WG4 meeting calendar
General info Email exploder lists


RAN Working groups and Ad Hoc groups 
TSG RAN Plenary  
TSG RAN WG1 Radio Layer 1 (Physical layer)
TSG RAN WG2 Radio layer 2 and Radio layer 3 Radio Resource Control
TSG RAN WG3 UTRAN/E-UTRAN/NG-RAN architecture and related network interfaces
TSG RAN WG4 Radio Performance and Protocol Aspects
TSG RAN WG5 Mobile terminal conformance testing
TSG RAN WG6 Legacy RAN radio and protocol - CLOSED
TSG RAN AHG1 Ad-hoc group on ITU (internal) co-ordination
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