公开(公告)号：US11895593B2

公开(公告)日：2024-02-06

申请号：US17654011

申请日：2022-03-08

Applicant: QUALCOMM Incorporated

Inventor： Manu Krishnan Kavunkal ,  Manav Lnu ,  Manish Jain ,  Abhishek Kumar ,  Venkata Pavan Kumar Bhargav Medepally ,  Kiran Singh Matharu ,  Parees Kambli ,  Awlok Singh Josan ,  Farrukh Rashid ,  Ashutosh Vinod Agrawal

IPC: H04W52/02 ,  H04L1/00

CPC classification number: H04W52/0238 ,  H04L1/001

Abstract: To reduce power consumption, a user equipment (UE) may trigger a microsleep in a subframe when a physical downlink control channel (PDCCH) does not include a downlink grant. However, because the microsleep depends on the PDCCH not including a downlink grant, the UE cannot trigger the microsleep until after the PDCCH is decoded. Accordingly, in some aspects, a UE may enable an aggressive extra microsleep in which a microsleep duration may be increased by reducing a PDCCH decode time. For example, a UE may use a stale channel estimate and noise estimate from a previous subframe to perform PDCCH demapping when conditions related to a PDCCH block error rate are satisfied. In this way, removing channel estimation and noise estimation from a PDCCH demapping path may reduce the PDCCH decode time, whereby the UE may trigger a microsleep sooner to increase a sleep ratio and thereby increase power savings.