US 11,895,602 B2
Cellular reporting techniques for synchronization state changes
Yuqin Chen, Shenzhen (CN); Haijing Hu, Beijing (CN); Fangli Xu, Beijing (CN); and Dawei Zhang, Saratoga, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Apr. 28, 2022, as Appl. No. 17/731,578.
Application 17/731,578 is a continuation of application No. 16/345,397, granted, now 11,330,538, previously published as PCT/CN2018/086307, filed on May 10, 2018.
Prior Publication US 2022/0256490 A1, Aug. 11, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 56/00 (2009.01); H04W 74/08 (2009.01); H04W 72/23 (2023.01); H04W 72/54 (2023.01)
CPC H04W 56/0005 (2013.01) [H04W 56/001 (2013.01); H04W 72/23 (2023.01); H04W 72/54 (2023.01); H04W 74/0841 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus, comprising:
a processor configured to cause a user equipment device (UE) to:
restart a timing alignment timer (TAT) in response to a first timing advance command from a cellular network for a plurality of serving cells;
based on radio resource configuration (RRC) information from the cellular network, identify a plurality of configurations for semi-persistent (SP) channel state information (CSI) reports for a physical uplink shared channel (PUSCH), wherein respective configurations of the plurality of configurations for the SP-CSI reports correspond to respective serving cells of the plurality of serving cells;
activate the plurality of configurations for the SP-CSI reports based on downlink control information (DCI) from the cellular network;
transmit one or more SP-CSI reports using the PUSCH according to the plurality of configurations for the SP-CSI reports; and
in response to expiration of the TAT:
deactivate the plurality of configurations for the SP-CSI reports; and
restart the TAT for the plurality of serving cells according to a second timing advance command, wherein none of the plurality of configurations for the SP-CSI reports are active upon restarting the TAT for the plurality of serving cells.