<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 |
| Specifications | |
| 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 |
