US 12,294,895 B2
IAB node switching method and apparatus
Jing Liu, Shanghai (CN); Zhenzhen Cao, Beijing (CN); Mingzeng Dai, Shenzhen (CN); and Yuanping Zhu, Shanghai (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed on Aug. 10, 2021, as Appl. No. 17/398,175.
Application 17/398,175 is a continuation of application No. PCT/CN2020/075156, filed on Feb. 13, 2020.
Claims priority of application No. 201910118848.7 (CN), filed on Feb. 15, 2019.
Prior Publication US 2021/0368409 A1, Nov. 25, 2021
Int. Cl. H04W 36/00 (2009.01); H04W 36/08 (2009.01); H04W 36/38 (2009.01)
CPC H04W 36/0033 (2013.01) [H04W 36/0011 (2013.01); H04W 36/08 (2013.01); H04W 36/38 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An integrated access and backhaul (IAB) node switching method, comprising:
sending, from a third IAB node to a source donor node, a measurement report, using an RRC message, that reflects channel quality;
receiving, by the third IAB node, a node switching command from the source donor node, wherein the source donor node is a control node of the third IAB node, a first node is a source parent node of the third IAB node, the node switching command is based upon a determination of the channel quality by the source donor node based on the measurement report reported by the third IAB node, and the node switching command comprises target transmission time unit configuration information of the third IAB node;
switching, by the third IAB node, to a second node, and
sending, by the third IAB node, first indication information to a child node of the third IAB node, wherein the first indication information indicates the child node to interrupt transmission with the third IAB node.