US 12,452,950 B2
Discontinuous reception transmission
Fangli Xu, Beijing (CN); Chunhai Yao, Beijing (CN); Dawei Zhang, Saratoga, CA (US); Haijing Hu, Los Gatos, CA (US); Naveen Kumar R. Palle Venkata, San Diego, CA (US); Pavan Nuggehalli, Cupertino, CA (US); Ralf Rossbach, Munich (DE); Sarma V. Vangala, Campbell, CA (US); Sethuraman Gurumoorthy, San Ramon, CA (US); Yuqin Chen, Beijing (CN); and Zhibin Wu, Los Altos, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Appl. No. 17/593,733
Filed by Apple Inc., Cupertino, CA (US)
PCT Filed Aug. 5, 2021, PCT No. PCT/CN2021/111060
§ 371(c)(1), (2) Date Sep. 23, 2021,
PCT Pub. No. WO2023/010493, PCT Pub. Date Feb. 9, 2023.
Prior Publication US 2024/0023194 A1, Jan. 18, 2024
Int. Cl. H04L 1/1829 (2023.01); H04L 1/1812 (2023.01); H04L 5/00 (2006.01); H04W 4/06 (2009.01); H04W 72/232 (2023.01); H04W 76/28 (2018.01)
CPC H04W 76/28 (2018.02) [H04L 1/1812 (2013.01); H04L 1/1848 (2013.01); H04W 4/06 (2013.01); H04W 72/232 (2023.01)] 18 Claims
OG exemplary drawing
 
1. A user equipment (UE), comprising:
a transceiver configured to communicate with a network; and
a processor communicatively coupled to the transceiver and configured to perform operations comprising:
receiving, from a base station, a first configuration of discontinuous reception (DRX) which is for maintaining a first active time for a point-to-point (PTP) transmission;
receiving, from the base station, a second configuration of DRX which is for maintaining a second active time for a point-to-multipoint (PTM) transmission;
monitoring a first physical downlink control channel (PDCCH) with a first identifier which is specific to the UE based on the first active time;
monitoring a second PDCCH with a second identifier which is specific to the PTM transmission based on the second active time;
decoding, based on signals received from the base station, the second PDCCH;
generating, for transmission to the base station, hybrid automatic repeat request (HARQ) feedback in response to decoding the second PDCCH;
starting, after the HARQ feedback is transmitted, a PTM retransmission timer; and
starting a PTP active time in response to starting the PTM retransmission timer.