FUTUREWEI · 10.6.1.2

Futurewei proposes a unified 6G DL WUS design based on OFDM sequences to replace both Rel-17 PEI and Rel-19 LP-WUS for idle/inactive paging, and both Rel-16 DCP and Rel-19 LP-WUS for connected state energy saving — avoiding multiple options for the same functionality. They propose extending coverage target to Broadcast PDCCH based on the 6G 'EE processing' power state, which has no NF degradation and falls within Rel-18/19 LP-WUR ON-state relative power, thereby eliminating the Rel-19 LP-WUS conditional entry/exit condition based on serving cell measurements. They propose adopting Rel-19 LP-WUS codepoint-based wake-up indication (including an all-subgroups codepoint), supporting at least 31 subgroups per PO associated with up to 4 POs. They further propose using DL WUS to dynamically indicate paging occasion distribution patterns (sparse, densely clustered, or grouped) and to support SCell dormancy indication with increased capacity compared to Rel-19's 32-codepoint limit. They target coupling serving cell measurement with DL-WUS monitoring in the EE processing state and recommend sequence design with good time domain or dual time/frequency domain characteristics for the primary synchronization signal to reduce measurement complexity.

Futurewei proposes a unified 6G DL WUS of OFDM based sequence design that claims functionality from both Rel-17 PEI and Rel-19 LP-WUS for RRC IDLE/INACTIVE operation, using codepoint-based indication with at least an all subgroups codepoint and supporting a maximum of at least 31 subgroups per PO with association to at least 4 POs. They argue that 6G UE 'EE processing' power state assumptions—specifically no NF degradation relative to the main radio and relative power within Rel-18/19 LP-WUR ON range—enable PDCCH as the coverage target, extending energy saving to full cell coverage. This eliminates the need for Rel-19's conditional entry/exit condition based on serving cell measurements. For RRC CONNECTED operation, they propose starting from Rel-19 Option 1-2 monitoring to decouple measurement requirements from PDCCH monitoring and support energy saving during short DRX cycles, while requiring SCell dormancy indication capability and increased wake-up capacity beyond Rel-19 LP-WUS to fully claim Rel-16 DCP functionality.