US 12,381,581 B2
Using erasure coding on partial code block communication interruption
Victor Liau, Germantown, MD (US); Mustafa Eroz, Germantown, MD (US); and Lin-Nan Lee, Potomac, MD (US)
Assigned to Hughes Network Systems, LLC, Germantown, MD (US)
Filed by Hughes Network Systems, LLC, Germantown, MD (US)
Filed on Dec. 4, 2023, as Appl. No. 18/528,689.
Prior Publication US 2025/0183918 A1, Jun. 5, 2025
Int. Cl. H03M 13/37 (2006.01); H03M 13/11 (2006.01)
CPC H03M 13/373 (2013.01) [H03M 13/1154 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method for recovering from communication interruptions by a periodic blockage, the method comprising:
selecting an inner code block rate supporting a Packet Error Ratio (PER) greater than or equal to a target PER during the periodic blockage;
estimating an expected number of erasures based on a count of the inner code blocks in an outer code block, a count of periodic blockages expected in a transmitting duration of the inner code blocks, and the target PER;
choosing an outer code block rate capable of correcting an erasure ratio of the expected number of erasures to the count of the inner code blocks;
encoding an input using the outer code block rate to form an outer code block;
forming inner code blocks by individually encoding segments of the outer code block using the inner code block rate; and
transmitting the inner code blocks,
wherein a count of inner code blocks is greater than 1, and the PER is a ratio of the expected number of erasures to the count of inner code blocks.