US 12,452,784 B2
Link reachability determining method and apparatus
Guogang Huang, Shenzhen (CN); Ming Gan, Shenzhen (CN); Yunbo Li, Shenzhen (CN); and Yuchen Guo, Shenzhen (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed on Dec. 15, 2022, as Appl. No. 18/066,492.
Application 18/066,492 is a continuation of application No. PCT/CN2021/100723, filed on Jun. 17, 2021.
Claims priority of application No. 202010561038.1 (CN), filed on Jun. 18, 2020; and application No. 202010739697.X (CN), filed on Jul. 28, 2020.
Prior Publication US 2023/0113050 A1, Apr. 13, 2023
Int. Cl. H04W 48/20 (2009.01); H04W 76/15 (2018.01); H04W 88/10 (2009.01)
CPC H04W 48/20 (2013.01) [H04W 76/15 (2018.02); H04W 88/10 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A link reachability determining method, wherein the method is applied to a multi-link station (STA), the multi-link STA comprises M STAs, the M STAs one-to-one correspond to M links supported by the multi-link STA, M is an integer greater than 1, and the method comprises:
receiving a first frame sent by a multi-link access point AP on a first link, wherein the first link is one of the M links supported by the multi-link STA, the multi-link AP comprises N APs, the first frame comprises transmit power and antenna gain information of each of the N APs, and Nis an integer greater than 1; and
determining, based on the first frame, whether each of the M links supported by the multi-link STA is reachable in an uplink direction, the determining comprising at least:
determining a link loss of a target link and antenna gain information of a target AP based on the first frame, wherein the target link is one of a plurality of links supported by the multi-link STA, and the target AP is an AP that is of the multi-link AP and that operates on the target link; and
determining uplink receive power of the target link based on the antenna gain information of the target AP, the link loss of the target link, and transmit power and antenna gain information of a target STA, wherein the target STA is a STA that is of the multi-link STA and that operates on the target link.