Technical Committee (TC) Broadband Radio Access Networks (BRAN) Activity Report 2019
Chair: Guido Hiertz (Ericsson GmbH, Eurolab)
Responsible for the standardization of Broadband Radio Access Networks.
ETSI’s Broadband Radio Access Networks committee (TC BRAN) produces and maintains standards and specifications for current and future Broadband Wireless Access (BWA) and Radio Local Area Network (RLAN) technologies in different frequency ranges.
The committee has primary responsibility for all aspects of standardization for broadband radio access networks, including systems as defined in ITU-R Recommendation F.1399-1.
In 2019 the committee published a Technical Report [TR 103 631] on the characteristics of Wireless Access Systems including Radio Local Area Networks (WAS/RLANs) in the band 6 725 - 7 125 MHz.
Updates to various Harmonised Standards remained an area of primary interest for the committee during the year.
Development progressed on a new version of the Harmonised Standard for 5 GHz Radio LANs. Mechanisms for coexistence between different technologies such as IEEE 802.11, LAA LTE, and 5G NR-U remain a major discussion item.
Work also continued on updating our Harmonised Standard for Multiple Gigabit Wireless Systems operating in the 60 GHz band to consider receiver sensitivity parameters.
Updates to the Harmonised Standard for Broadband Fixed Wireless Access (BFWA) in the 5,8 GHz band progressed, revising measurement uncertainty limits in accordance with comments received from the European Commission.
Revision to the Harmonised Standard on White Space Devices (WSD) operating in the 470 - 790 MHz TV broadcast band continued.
In parallel, three new Work Items were formally adopted during the course of the year, with further development/delivery anticipated in 2020.
- A new Harmonised Standard will specify technical requirements for wireless access systems including radio local area networks (WAS/RLANs) operating in the band 5 925 - 6 425 MHz, as described in ETSI TR 103 524 and ECC Report 302.
- In support of work in CEPT, a new feasibility assessment investigates the application of new and existing mitigation techniques to systems including radio local area networks (WAS/RLAN), radar and RTTT/smart tachographs to enable coexistence in the 5 725 - 5 850 MHz band.
- Currently in draft, a new Harmonised Standard considers Wideband Data Transmission Systems (WDTS) for fixed network radio equipment operating in the 57 - 71 GHz.
During July 2019 TC BRAN participated in the IEEE 802.11 Coexistence Workshop held in Vienna, Austria.
Look out for in 2020 – TC BRAN work in progress:
- Revision to Harmonised Standard (EN) on access to radio spectrum for 5 GHz RLANs
- Revision to EN on 60 GHz Multiple-Gigabit/s equipment
- Revision to EN on White Space Devices (WSD); wireless access systems operating in the 470 - 790 MHz TV band
- EN on technical characteristics and methods of measurements for wireless access systems including radio local area networks (WAS/RLANs) operating in 5 925 - 6 425 MHz band
- EN on WDTS for Fixed Networks in 57 - 71 GHz band
- Technical Report on mitigation techniques in 5725 - 5850 MHz band to enable coexistence between wireless access systems including radio local area networks (WAS/RLAN) and RTTT/smart tachograph and radars (including Fast Frequency Hopping)