US 11,943,695 B2
Network channel switching method and apparatus, device, and storage medium
Yuexia Qi, Shanghai (CN); and Jiangjian Jiang, Shanghai (CN)
Assigned to ESPRESSIF SYSTEMS (SHANGHAI) CO., LTD., Shanghai (CN)
Appl. No. 17/413,442
Filed by ESPRESSIF SYSTEMS (SHANGHAI) CO., LTD., Shanghai (CN)
PCT Filed Dec. 3, 2019, PCT No. PCT/CN2019/122705
§ 371(c)(1), (2) Date Jun. 11, 2021,
PCT Pub. No. WO2020/119523, PCT Pub. Date Jun. 18, 2020.
Claims priority of application No. 201811520852.8 (CN), filed on Dec. 12, 2018.
Prior Publication US 2022/0060961 A1, Feb. 24, 2022
Int. Cl. H04W 40/02 (2009.01); H04W 40/24 (2009.01); H04W 48/16 (2009.01); H04W 84/18 (2009.01)
CPC H04W 40/02 (2013.01) [H04W 40/246 (2013.01); H04W 40/248 (2013.01); H04W 48/16 (2013.01); H04W 84/18 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A network channel switching method performed by a node device in a wireless mesh network, comprising:
obtaining network channel switching information sent by an upper-level parent node device having a connection relationship therewith and sending the network channel switching information to at least a lower-level child node device having a connection relationship therewith; and
switching from a current channel to a target channel according to the received network channel switching information;
wherein obtaining network channel switching information sent by an upper-level parent node device having a connection relationship therewith comprises:
if the network channel switching information is lost, triggering an all-channel scanning to search for the upper-level parent node device having a connection relationship therewith;
obtaining the channel switching latency value and the target channel to be switched to from the upper-level parent node device, and generating the network channel switching information.