US 12,245,253 B2
Systems and methods for resource allocation and encoding of inter-UE coordination messages
Chunxuan Ye, Cupertino, CA (US); Chunhai Yao, Beijing (CN); Dawei Zhang, Cupertino, CA (US); Haijing Hu, Cupertino, CA (US); Haitong Sun, Cupertino, CA (US); Hong He, Cupertino, CA (US); Oghenekome Oteri, Cupertino, CA (US); Seyed Ali Akbar Fakoorian, Cupertino, CA (US); Sigen Ye, Cupertino, CA (US); Sudhir K Baghel, Cupertino, CA (US); Wei Zeng, Cupertino, CA (US); Weidong Yang, Cupertino, CA (US); Yushu Zhang, Beijing (CN); and Zhibin Wu, Cupertino, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Appl. No. 17/598,245
Filed by Apple Inc., Cupertino, CA (US)
PCT Filed Oct. 16, 2020, PCT No. PCT/CN2020/121483
§ 371(c)(1), (2) Date Oct. 14, 2021,
PCT Pub. No. WO2022/077435, PCT Pub. Date Apr. 21, 2022.
Prior Publication US 2023/0247654 A1, Aug. 3, 2023
Int. Cl. H04W 72/40 (2023.01); H04W 28/26 (2009.01)
CPC H04W 72/40 (2023.01) [H04W 28/26 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method of communication by a wireless user equipment (UE) with a second UE in a communication network, the method comprising:
configuring, by the UE, a pool of coordination resources for sending a coordination message that is associated with sidelink communication between the UE and the second UE, including allocating, with a first bitmap, resources including first physical resource blocks (PRBs) to a Physical Sidelink Feedback Channel (PSFCH) for carrying Hybrid Automatic Repeat Request (HARQ) feedback of the sidelink communication; and allocating, with a second bitmap, resources including second PRBs to a Physical Sidelink Feedback Coordination Channel (PSFCCH) for separately carrying the coordination message;
receiving, by the UE from the second UE, data indicating reserved resources intended for use by the second UE to transmit sidelink data to the UE;
determining the coordination message used to indicate whether the reserved resources are available for use by the UE to receive the sidelink data from the second UE;
determining resources from the pool of coordination resources used to carry the coordination message; and
transmitting, by the UE, the coordination message carried on the resources to indicate to the second UE whether to use the reserved resources for the sidelink data.