US 11,758,369 B2
Discovery of forwarders to mitigate asymmetric links in a multicast group
Jérôme Bartier, Edinburgh (GB); and Fabrice Monier, Bry sur Marne (FR)
Assigned to Itron Global SARL, Liberty Lake, WA (US)
Filed by Itron Global SARL, Liberty Lake, WA (US)
Filed on Dec. 23, 2020, as Appl. No. 17/133,252.
Prior Publication US 2022/0201439 A1, Jun. 23, 2022
Int. Cl. H04W 4/08 (2009.01); H04L 12/18 (2006.01); H04W 84/18 (2009.01); H04W 88/18 (2009.01)
CPC H04W 4/08 (2013.01) [H04L 12/185 (2013.01); H04L 12/189 (2013.01); H04W 84/18 (2013.01); H04W 88/18 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method, comprising:
transmitting, by a node included in a mesh network, a unicast message to a multicast group leader of a multicast group in response to a multicast advertisement message received from the multicast group leader, wherein the unicast message includes a first request to join the multicast group;
determining, by the node, that no message acknowledging the first request to join the multicast group has been received from the multicast group leader; and
in response to the determining, broadcasting, by the node, a first broadcast message that includes a multicast join request to one or more nodes included in the mesh network that are direct neighbors of the node, wherein the first broadcast message is forwardable by at least one node included in the one or more nodes based on a first maximum hop limit.