US 11,991,770 B2
Method for detecting link failure of sidelink and terminal
Jing Liang, Chang'an Dongguan (CN); Xiaodong Yang, Chang'an Dongguan (CN); and Qian Zheng, Chang'an Dongguan (CN)
Assigned to Vivo Mobile Communication Co., Ltd., Guangdong (CN)
Filed by VIVO MOBILE COMMUNICATION CO., LTD., Guangdong (CN)
Filed on Mar. 24, 2021, as Appl. No. 17/211,567.
Application 17/211,567 is a continuation of application No. PCT/CN2019/107856, filed on Sep. 25, 2019.
Claims priority of application No. 201811117204.8 (CN), filed on Sep. 25, 2018.
Prior Publication US 2021/0212148 A1, Jul. 8, 2021
Int. Cl. H04W 76/19 (2018.01); H04W 24/10 (2009.01); H04W 76/14 (2018.01); H04W 92/18 (2009.01)
CPC H04W 76/19 (2018.02) [H04W 24/10 (2013.01); H04W 76/14 (2018.02); H04W 92/18 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for detecting link failure of a sidelink, applied to a terminal and comprising:
transmitting target information through a sidelink, wherein the target information comprises a data packet; and
determining, if a transmission status of the target information meets a preset criterion, that no link failure occurs on the sidelink, and determining, if otherwise, that link failure occurs on the sidelink;
wherein before the step of determining, if a transmission status of the target information meets a preset criterion, that no link failure occurs on the sidelink, the method further comprises:
detecting whether a transmission status of the data packet meets a second preset criterion within the time interval;
wherein when the terminal is a transmit end, the second preset criterion comprises at least one of the following:
that reception feedback information of the data packet being ACK is received or detected,
that a quantity of failed transmissions of the data packet is less than a third number, and
that a quantity of retransmissions of the data packet is less than a fourth number.