US 12,010,005 B2
Cable modem termination system
Jing Xiao, Shenzhen (CN); Xuebo Chen, Shenzhen (CN); Wei Lu, Shenzhen (CN); Jing Sun, Shenzhen (CN); and Zhiyong Dong, Shenzhen (CN)
Assigned to ARRIS Enterprises LLC, Suwanee, GA (US)
Filed by ARRIS Enterprises LLC, Suwanee, GA (US)
Filed on Dec. 21, 2022, as Appl. No. 18/086,262.
Application 18/086,262 is a continuation of application No. 17/681,355, filed on Feb. 25, 2022, granted, now 11,563,658.
Claims priority of application No. 202110210567.1 (CN), filed on Feb. 25, 2021; and application No. 202110210629.9 (CN), filed on Feb. 25, 2021.
Prior Publication US 2023/0130482 A1, Apr. 27, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 43/0811 (2022.01); H04L 1/24 (2006.01); H04L 12/28 (2006.01); H04L 41/0681 (2022.01); H04L 43/0823 (2022.01); H04L 43/16 (2022.01)
CPC H04L 43/0811 (2013.01) [H04L 1/24 (2013.01); H04L 12/2801 (2013.01); H04L 12/2898 (2013.01); H04L 41/0681 (2013.01); H04L 43/0823 (2013.01); H04L 43/16 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A cable modem termination system including a processor executing instructions, comprising:
determining a first quantity related to uncorrectable erroneous codewords and a second quantity related to other codewords except said erroneous codewords in a data packet received by said cable modem termination system from another device via a channel;
calculating a first metric based upon said first quantity and said second quantity;
in response to said first metric indicating a threshold number of uncorrectable erroneous codewords over a first time duration, determining said channel as a damaged channel;
determining a third quantity related to uncorrectable erroneous test codewords and a fourth quantity related to other test codewords except said erroneous test codewords in said test data received by said cable modem termination system from said another device via said channel;
calculating a second metric based upon said third quantity and said fourth quantity; and
in response to said second metric indicating a threshold number of correctable codewords over a second time duration, determining said channel as an available channel.