FUTUREWEI · 10.6.1.1

Futurewei proposes reusing Rel-19 LP-WUS design aspects, specifically Zadoff-Chu OFDM sequences defined before DFT processing, as a starting point for 6G DL WUS but requires removing the underlying OOK signal and Manchester encoding. They propose targeting Broadcast PDCCH coverage with an MDR of 1% and FAR of {0.1%,1%}, citing an expected ~1.13dB coverage gap with 5G NR Broadcast PDCCH based on NF improvement and OFDM detection gains over OOK. They propose that the DL WUS of OFDM-based sequence can replace Rel-16 DCP and Rel-17 PEI functionalities for a unified energy-saving solution. They call for a new design of candidate OFDM sequence length and number per symbol to achieve the PDCCH coverage target without depending on OOK-based power boosting. They propose direct mapping of raw information bits to OFDM sequences with configurable repetitions for simplified, energy-efficient UE processing.

Futurewei proposes adopting a DL WUS based on an OFDM sequence with at least PDCCH as a coverage target, replacing Rel-16 DCP and Rel-17 PEI functionality for a unified 6G energy saving solution. They propose using Rel-19 LP-WUS design as a starting point, maintaining the pre-DFT OFDM sequence overlay definition to enable time-domain EE processing at the UE, but explicitly requiring the removal of the underlying OOK signal and Manchester encoding constraint. Futurewei proposes a new design for the length and number of candidate OFDM sequences per OFDM symbol, redesigned for the PDCCH coverage target and UE processing complexity without the OOK signal. They also propose direct mapping of raw information bits to OFDM sequences with a configurable number of repetitions for simplified EE UE processing.