US 12,432,011 B2
Forward error correction encoding with reliability differentiation
Kanke Wu, San Diego, CA (US); and Bin Tian, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Aug. 23, 2022, as Appl. No. 17/821,695.
Prior Publication US 2024/0072932 A1, Feb. 29, 2024
Int. Cl. H04L 1/00 (2006.01); H03M 13/31 (2006.01); H04L 27/36 (2006.01)
CPC H04L 1/0061 (2013.01) [H03M 13/31 (2013.01); H04L 27/36 (2013.01)] 34 Claims
OG exemplary drawing
 
9. A wireless communication device, comprising:
at least one processor; and
at least one memory communicatively coupled with the at least one processor and storing processor-readable code that, when executed by the at least one processor, is configured to:
perform a first forward error correction encoding operation on a first set of information bits associated with a first priority that results in a first set of encoded bits that includes the first set of information bits and a first set of parity bits;
perform a second forward error correction encoding operation on a second set of information bits and at least a portion of the first set of encoded bits that includes at least a portion of the first set of information bits and that does not include the first set of parity bits, the second set of information bits associated with a second priority lower than the first priority, the performance of the second forward error correction encoding operation resulting in a second set of encoded bits that includes the first set of information bits, the second set of information bits, and a second set of parity bits;
map the second set of encoded bits to a set of modulation symbols, the mapping comprising:
mapping the first set of information bits to relatively higher reliability bit positions of a modulation constellation; and
mapping the second set of information bits to relatively lower reliability bit positions of the modulation constellation;
modulate the set of modulation symbols onto a carrier signal; and
transmit the modulated carrier signal over a wireless channel; and
map a portion of the first set of encoded bits that includes the first set of parity bits omitted from the second set of encoded bits to relatively higher reliability bit positions of the modulation constellation of the set of modulation symbols.
 
26. A wireless communication device, comprising:
at least one processor; and
at least one memory communicatively coupled with the at least one processor and storing processor-readable code that, when executed by the at least one processor, is configured to:
parse a set of information bits into a first set of information bits associated with a first priority and a second set of information bits associated with a second priority lower than the first priority according to a bit prioritization parameter associated with a state of a wireless channel;
perform a first forward error correction encoding operation on the first set of information bits that results in a first set of encoded bits that includes the first set of information bits and a first set of parity bits;
perform a second forward error correction encoding operation on the second set of information bits that results in a second set of encoded bits that includes the second set of information bits and a second set of parity bits;
map the first set of encoded bits and the second set of encoded bits to a set of modulation symbols, the mapping comprising, in accordance with the bit prioritization parameter, mapping the first set of information bits to relatively higher reliability bit positions of a modulation constellation and mapping the second set of information bits to relatively lower reliability bit positions of the modulation constellation;
modulate the set of modulation symbols onto a carrier signal; and
transmit the modulated carrier signal over the wireless channel.