US 12,003,321 B2
Wireless communication system, wireless communication device, receiver, control circuit, and storage medium
Masatsugu Higashinaka, Tokyo (JP)
Assigned to MITSUBISHI ELECTRIC CORPORATION, Tokyo (JP)
Filed by MITSUBISHI ELECTRIC CORPORATION, Tokyo (JP)
Filed on Jul. 12, 2021, as Appl. No. 17/372,890.
Application 17/372,890 is a continuation of application No. PCT/JP2019/006879, filed on Feb. 22, 2019.
Prior Publication US 2021/0344443 A1, Nov. 4, 2021
Int. Cl. H04B 1/38 (2015.01); H03M 13/19 (2006.01); H04L 1/00 (2006.01)
CPC H04L 1/0041 (2013.01) [H03M 13/19 (2013.01); H04L 1/0045 (2013.01); H04L 1/0059 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A wireless communication system comprising:
a transmitter comprising:
a coder to generate a first bit sequence by performing convolutional coding on an information bit on the basis of a code rate;
a bit eraser to generate a second bit sequence by erasing one or more bits from the first bit sequence for every predetermined first number of bits; and
a modulator to generate a symbol by modulation using the second bit sequence; and
a receiver comprising:
a demodulator to calculate a plurality of first reliabilities that are reliabilities of a plurality of bit sequences that can be derived from the symbol;
a likelihood extender to generate a plurality of extended bit sequences that are bit sequences each composed of bits for the first number of bits, and generate a plurality of second reliabilities that are reliabilities of the plurality of extended bit sequences by assigning a plurality of first reliabilities duplicated, as the reliabilities of the plurality of extended bit sequences; and
a decoder to create a trellis diagram using the code rate and the plurality of extended bit sequences, and perform decoding by assigning the plurality of second reliabilities to a plurality of branches of the trellis diagram.