Ericsson · 10.6.2

Ericsson questions the necessity of UL WUS discussions in agenda item 10.6.2 by arguing that on-demand sync signals and on-demand SIB1 are already covered in other agenda items (AI 10.5.1.1, 10.5.1.2) and NES power models are treated in AI 10.4. They oppose DS#1a and DS#2a on fundamental grounds, citing inability to achieve time-frequency synchronization, lack of WUS configuration and transmission parameters, inability to identify the cell or determine UL transmit power, and violation of the principle that the network is responsible for resource allocation. They propose that DS#1b be redirected to agenda item 10.5.1 for study in the context of on-demand SIB1, while identifying the main challenge as providing UL WUS configuration—potentially hundreds of bits—prior to SIB1 reception. They de-prioritize DS#2b due to marginal NES gain of around 4% with 160 ms SSB periodicity and propose that any 6G evaluations use a baseline with longer SSB periodicity and clustered SI/common transmissions. They oppose DS#1c and DS#2c, arguing that any UE with poor implementation could exploit UL WUS for additional sync signal transmissions, which is not resource efficient and significantly increases network energy consumption.