US Patent:
20230024091, Jan 26, 2023
Inventors:
- San Diego CA, US
Manav LNU - Hyderabad, IN
Manish JAIN - San Jose CA, US
Abhishek KUMAR - Hyderabad, IN
Venkata Pavan Kumar Bhargav MEDEPALLY - Hyderabad, IN
Kiran Singh MATHARU - Menlo Park CA, US
Parees KAMBLI - San Jose CA, US
Farrukh RASHID - San Diego CA, US
Ashutosh Vinod AGRAWAL - Bengaluru, IN
International Classification:
H04W 52/02
H04L 1/00
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.