US 12,137,355 B2
High frequency beam switching
Hong He, San Jose, CA (US); Chunhai Yao, Beijing (CN); Chunxuan Ye, San Diego, CA (US); Dawei Zhang, Saratoga, CA (US); Haitong Sun, Cupertino, CA (US); Huaning Niu, San Jose, CA (US); Jie Cui, San Jose, CA (US); Oghenekome Oteri, San Diego, CA (US); Seyed Ali Akbar Fakoorian, San Diego, CA (US); Sigen Ye, Whitehouse Station, NJ (US); Wei Zeng, Saratoga, CA (US); Weidong Yang, San Diego, CA (US); Yang Tang, San Jose, CA (US); and Yushu Zhang, Beijing (CN)
Assigned to Apple Inc., Cupertino, CA (US)
Appl. No. 17/593,603
Filed by Apple Inc., Cupertino, CA (US)
PCT Filed Oct. 15, 2020, PCT No. PCT/CN2020/121322
§ 371(c)(1), (2) Date Sep. 21, 2021,
PCT Pub. No. WO2022/077398, PCT Pub. Date Apr. 21, 2022.
Prior Publication US 2022/0303789 A1, Sep. 22, 2022
Int. Cl. H04W 16/28 (2009.01); H04W 72/02 (2009.01); H04W 72/04 (2023.01); H04W 72/044 (2023.01); H04W 72/21 (2023.01); H04W 80/02 (2009.01)
CPC H04W 16/28 (2013.01) [H04W 72/02 (2013.01); H04W 72/046 (2013.01); H04W 72/21 (2023.01); H04W 80/02 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A user equipment (UE), comprising:
a transceiver configured to communicate with a base station; and
a processor communicatively coupled to the transceiver and configured to perform operations comprising:
receiving a physical uplink control channel (PUCCH) resource configuration from the base station, wherein the PUCCH resource configuration includes a plurality of PUCCH resources, each PUCCH resource comprising at least a corresponding transmission beam;
receiving a signal from the base station, the signal providing instruction to activate one of the plurality of PUCCH resources;
evaluating a reference signal received power (RSRP) associated with the activated PUCCH resource as being above a reference signal received power threshold value;
selecting a first one of the plurality of PUCCH resources as the activated PUCCH resource having a RSRP greater than the reference signal received power threshold value, when the instructed activated PUCCH has a RSRP less than the threshold value;
performing a beam switching operation to change a transmission beam to a transmission beam corresponding to the activated PUCCH resource; and
transmitting periodic uplink (UL) data using the transmission beam corresponding to the activated PUCCH resource.