US 12,490,169 B2
Method and device for Thread over Internet Protocol
Jonathan Wing-Yan Hui, Belmont, CA (US); Abtin Keshavarzian, Mountain View, CA (US); Matt Daniel Smith, San Jose, CA (US); and Yakun Xu, Shanghai (CN)
Assigned to Google LLC, Mountain View, CA (US)
Appl. No. 17/996,071
Filed by Google LLC, Mountain View, CA (US)
PCT Filed May 14, 2021, PCT No. PCT/US2021/032422
§ 371(c)(1), (2) Date Oct. 12, 2022,
PCT Pub. No. WO2021/231844, PCT Pub. Date Nov. 18, 2021.
Claims priority of provisional application 63/025,791, filed on May 15, 2020.
Prior Publication US 2023/0199610 A1, Jun. 22, 2023
Int. Cl. H04W 40/12 (2009.01); H04W 80/02 (2009.01); H04W 84/10 (2009.01)
CPC H04W 40/12 (2013.01) [H04W 80/02 (2013.01); H04W 84/10 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for determining a preferred physical layer for communication by a node in a wireless network implementing a Thread specification, the method comprising:
transmitting a first Internet Protocol version 6 (IPv6) over a first Low power Wireless Personal Area Networks (6LoWPAN) frame to a neighbor node using a first physical layer;
transmitting the first 6LoWPAN frame to the neighbor node using a second physical layer;
determining a first preference value for the neighbor node using the first physical layer based on one or more acknowledgement packets received from the neighbor node for transmissions made using the first physical layer;
determining a second preference value for the neighbor node using the second physical layer based on one or more Thread Radio Encapsulation Link (TREL) acknowledgement packets received from the neighbor node for transmissions made using the second physical layer;
comparing the first preference value and the second preference value to determine the preferred physical layer for communication comprising selecting the physical layer with the greatest preference value as the preferred physical layer; and
transmitting a second 6LoWPAN frame to the neighbor node using the preferred physical layer.