US 11,743,001 B2
Indexing-based feedback codes and methods of use
Yihan Jiang, Cupertino, CA (US); Ravikiran Gopalan, Cupertino, CA (US); Amaael Antonini, Los Angeles, CA (US); and Anand Chandrasekher, Saratoga, CA (US)
Assigned to Aira Technologies, Inc., Saratoga, CA (US)
Filed by Aira Technologies, Inc., Saratoga, CA (US)
Filed on Dec. 20, 2021, as Appl. No. 17/556,155.
Claims priority of provisional application 63/131,268, filed on Dec. 28, 2020.
Prior Publication US 2022/0209897 A1, Jun. 30, 2022
Int. Cl. H04L 1/24 (2006.01); H04L 1/00 (2006.01); H04L 1/1867 (2023.01); H04L 1/08 (2006.01); H04L 1/20 (2006.01)
CPC H04L 1/242 (2013.01) [H04L 1/0009 (2013.01); H04L 1/0041 (2013.01); H04L 1/0046 (2013.01); H04L 1/0047 (2013.01); H04L 1/0061 (2013.01); H04L 1/0072 (2013.01); H04L 1/0091 (2013.01); H04L 1/08 (2013.01); H04L 1/1867 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A method comprising:
determining, at an encoder, error correction using a feedback packet for a received packet having errors, the received packet having been decoded at a decoder from an original packet which has been transmitted from the encoder to the decoder over a first communications channel, the feedback packet comprising the received decoded packet, which has been transmitted as the feedback packet from the decoder to the encoder over a second communications channel;
generating, at the encoder, an index of the error correction using the feedback packet, the index comprising error positions for the errors in the feedback packet; and
transmitting the index from the encoder to the decoder over the first communications channel as feedback to the decoder, the index transmitted instead of retransmitting the original packet to reduce transmission bandwidth requirement.