US 11,864,109 B2
Wake-up signal operation for multiple transmission and reception points
Sungwoo Park, San Diego, CA (US); Mostafa Khoshnevisan, San Diego, CA (US); Xiaoxia Zhang, San Diego, CA (US); Tao Luo, San Diego, CA (US); Jing Sun, San Diego, CA (US); and Wooseok Nam, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Feb. 26, 2020, as Appl. No. 16/802,445.
Claims priority of provisional application 62/813,673, filed on Mar. 4, 2019.
Prior Publication US 2020/0288399 A1, Sep. 10, 2020
Int. Cl. H04W 52/02 (2009.01); H04W 76/27 (2018.01); H04W 80/02 (2009.01); H04W 76/28 (2018.01)
CPC H04W 52/0229 (2013.01) [H04W 76/27 (2018.02); H04W 76/28 (2018.02); H04W 80/02 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A method for wireless communication at a user equipment (UE), comprising:
receiving a wake-up signal configuration, the wake-up signal configuration indicating an anchor transmission/reception point of a plurality of transmission/reception points from which the UE is to monitor for wake-up signals, wherein the anchor transmission/reception point is associated with a first panel at the UE;
monitoring for wake-up signaling from the anchor transmission/reception point based at least in part on the wake-up signal configuration, the wake-up signaling being for a discontinuous reception cycle;
receiving at least one wake-up signal prior to or at a beginning of an on-duration state in the discontinuous reception cycle based at least in part on the monitoring, the at least one wake-up signal indicating a presence of information in the on-duration state;
turning on the first panel at the UE used to receive signals from the anchor transmission/reception point based at least in part on receiving the at least one wake-up signal;
receiving, in the on-duration state, a first control message from the anchor transmission/reception point using the first panel, wherein the first control message comprises an indication of a subset the plurality of transmission/reception points different from the anchor transmission/reception point for which the UE is to monitor for the information in the on-duration state, wherein the indication comprises an explicit indication of indices of the subset of the plurality of transmission/reception points or an indication of transmission configuration indication states corresponding to the indices of the subset of the plurality of transmission/reception points;
turning on a set of second panels at the UE associated with the subset of the plurality of transmission/reception points to receive the information in the on-duration state based at least in part on the indication of the subset of the plurality of transmission/reception points;
receiving, from the anchor transmission/reception point, a second control message indicating that the UE is to turn off the set of second panels at the UE used to receive signals from the subset of the plurality of transmission/reception points, wherein the second control message is a downlink control information message; and
turning off the set of second panels at the UE based at least in part on receiving the second control message.