US 11,991,639 B2
Battery life-time optimization for low power devices
Talha Khan, Santa Clara, CA (US); Per Gunningberg, Uppsala (SE); Olof Liberg, Enskede (SE); and Yi-Pin Eric Wang, Fremont, CA (US)
Assigned to Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Appl. No. 17/612,524
Filed by TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm (SE)
PCT Filed May 21, 2019, PCT No. PCT/IB2019/054200
§ 371(c)(1), (2) Date Nov. 18, 2021,
PCT Pub. No. WO2020/234627, PCT Pub. Date Nov. 26, 2020.
Prior Publication US 2022/0256469 A1, Aug. 11, 2022
Int. Cl. H04W 52/02 (2009.01); H04W 52/54 (2009.01)
CPC H04W 52/0277 (2013.01) [H04W 52/54 (2013.01)] 31 Claims
OG exemplary drawing
 
1. A method implemented by a network node in a wireless communication network of controlling the operation of a user equipment (UE), the method comprising:
determining a voltage response characteristic of a battery of the UE; and
controlling operation of the UE in connected mode based on the voltage response characteristic of the battery to extend a life-time of the battery,
wherein the voltage response characteristic comprises at least one of a sustained current load of the battery, a recovery period of the battery, or a discharge duration of the battery, and
wherein controlling the operation of the UE in connected mode comprises controlling reception by the UE of a downlink transmission including adjusting a downlink control information (DCI) search parameter based at least in part on the voltage response characteristic of the battery.