US 12,170,999 B2
PSFCH sending method and apparatus
Jinfang Zhang, Shenzhen (CN); and Hongjia Su, Shanghai (CN)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed on Dec. 23, 2021, as Appl. No. 17/561,501.
Application 17/561,501 is a continuation of application No. PCT/CN2020/098085, filed on Jun. 24, 2020.
Claims priority of application No. 201910569494.8 (CN), filed on Jun. 27, 2019.
Prior Publication US 2022/0116934 A1, Apr. 14, 2022
Int. Cl. H04W 72/20 (2023.01); H04W 4/40 (2018.01)
CPC H04W 72/20 (2023.01) [H04W 4/40 (2018.02)] 18 Claims
OG exemplary drawing
 
1. A physical sidelink feedback channel (PSFCH) sending method, wherein the method comprises:
receiving, by a first terminal apparatus, first sidelink data from a second terminal apparatus,
wherein a transmission resource of the first sidelink data comprises N resource elements, and N is a positive integer:
determining, by the first terminal apparatus, a feedback resource based on the transmission resource of the first sidelink data,
wherein the feedback resource is used to transmit sidelink feedback control information (SFCI), and the feedback resource comprises N resource elements; and
sending, by the first terminal apparatus, a first SFCI to the second terminal apparatus on the feedback resource through a first PSFCH and sending second SFCI to the second terminal apparatus through a second PSFCH,
wherein X resource elements are required for sending feedback information, and X is less than N,
wherein the first SFCI comprises the feedback information,
wherein the feedback information indicates whether the first terminal apparatus correctly receives the first sidelink data,
wherein the second SFCI comprises one or more of channel state information and receiving terminal measured assistance information (RMAI),
wherein a resource size of the first PSFCH is the same as a size of the X resource elements in the feedback information, and
wherein a resource size of the second PSFCH is the same as a resource size obtained by subtracting the X resource elements in the feedback information from the N resource elements in the feedback resource.