US 12,471,019 B2
Control channel monitoring in a wireless communication system
Andres Reial, Lomma (SE); Sina Maleki, Malmö (SE); Ali Nader, Malmö (SE); Niklas Andgart, Södra Sandby (SE); and Ilmiawan Shubhi, Malmö (SE)
Assigned to Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Appl. No. 17/600,701
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Apr. 2, 2020, PCT No. PCT/SE2020/050347
§ 371(c)(1), (2) Date Oct. 1, 2021,
PCT Pub. No. WO2020/204802, PCT Pub. Date Oct. 8, 2020.
Claims priority of provisional application 62/828,345, filed on Apr. 2, 2019.
Prior Publication US 2022/0191789 A1, Jun. 16, 2022
Int. Cl. H04W 52/02 (2009.01); H04W 76/28 (2018.01)
CPC H04W 52/0216 (2013.01) [H04W 52/0258 (2013.01); H04W 76/28 (2018.02)] 35 Claims
OG exemplary drawing
 
1. A method performed by a wireless device, the method comprising:
during a first portion of an active time of discontinuous reception (DRX) operation, monitoring a control channel using a first control channel monitoring configuration;
during the active time, switching from the first control channel monitoring configuration to a second control channel monitoring configuration, wherein said switching is triggered by a non-scheduling downlink control information (DCI) message that does not schedule any transmission but indicates an index of the second control channel monitoring configuration to which the wireless device is to switch; and
during a second portion of the active time occurring subsequent to the first portion and after said switching, monitoring the control channel using the second control channel monitoring configuration, wherein the first portion of the active time and the second portion of the active time are included in the same DRX cycle.