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On 2 June 2026, the Next Generation Mobile Networks Alliance (NGMN) released two new publications that present the operators’ perspectives on the path toward 6G.
The first publication, “6G Architecture and Migration Options – An Operator View,” examines candidate 6G architecture and migration options for the RAN and core network with the objective of narrowing choices early, minimizing unnecessary complexity, and enabling a cost-effective evolution from existing 5G networks. In particular, it discusses multi-radio access technology spectrum sharing (MRSS) as the primary migration mechanism, alongside alternative approaches such as dual connectivity, highlighting their respective benefits, risks, and implications for user experience, cost, and ecosystem impact.
MRSS is a technology that provides 6G with flexible access to the currently used 5G spectrum. By allowing multiple radio access technologies to operate efficiently within the same carrier, MRSS enables operators to introduce 6G while continuing to make full use of their existing spectrum assets.
In this way, competitive user throughput and performance can be achieved for 6G even in locations where a large amount of new spectrum (e.g., spectrum around 7 GHz) is unavailable, not usable due to electromagnetic field limits, or too costly to deploy. For this reason, the operators’ vision of the document highlights MRSS as an important technology.
Full Article: IEEE Vehicular Technology Magazine, Volume 21, Issue 3, September 2026
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