Qualcomm Incorporated

Farrukh Rashid

Arnaud Meylan

Reza Shahidi

Leena Zacharias

Qingxin Chen

Jafar Mohseni

Awlok Singh Josan

Manish Jain

Akshay Kumar

Zhibin Dang

Lan Lan

Zhong Fan

Manav Lnu

Ashutosh Vinod Agrawal

Parees Kambli

Venkata Pavan Kumar Bhargav Medepally

Kiran Singh Matharu

Manu Krishnan Kavunkal

Abhishek Kumar

Divaydeep Sikri

Certain aspects of the present disclosure provide a method for wireless communication by a user equipment (UE). The UE starts a first timer (such as a discontinuous reception (DRX) hybrid automatic repeat request (HARQ) round-trip-time (RTT) timer), after sending an uplink (UL) data transmission to a network entity. The UE then starts a second timer (such as a DRX retransmission timer) when the first timer expires. The UE then determines whether to wake up or sleep for a duration of the second timer based on a prior block error rate (BLER).

Power savings for voice services

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.

Aggressive extra microsleep using stale channel estimate and noise estimate to decode control channel

Growing community of inventors

San Diego, CA, United States of America

Farrukh Rashid