A UE-to-Network relay architecture enabling remote UEs to communicate through intermediate relays via PC5 sidelink and Uu interfaces in 5G networks.

Patentradars sammanfattning

This invention relates to a relay-based communication system for 5G networks where remote user equipment (UEs) establish connectivity through intermediate relay nodes. The architecture defines protocol stack layers including PC5 (sidelink) and Uu (network) interfaces, with specific handling of SDAP, PDCP, RLC, and MAC layers for both direct network connections and relay-assisted paths. The system supports dual-stack operation where remote UEs can communicate via the relay to network functions like gNB, AMF, and SMF through standardized 3GPP layer arrangements.

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