US 10,374,754 B2 · Polar code rate matching method and apparatus, and wireless communications device

Abstract

The present disclosure discloses a polar code rate matching method and apparatus and a wireless communications device that includes performing sorting processing on the first sequence Z according to a preset rule to determine a second sequence, wherein the first sequence Z is determined based on a Mersenne twister algorithm according to a code length of a target polar code, and interleaving the target polar code according to a mapping function to generate interleaved output bits, wherein the mapping function is determined according to the first sequence Z and the second sequence. A Mersenne twister algorithm is applied to target polar code rate matching such that a bit sequence obtained from the rate matching can be more even in structure, a frame error rate of a punctured polar code can be reduced, hybrid automatic repeat request (HARQ) performance can be improved, and further, communication reliability can be improved.

Claims21

Dependent claims

An apparatus, comprising:

a memory configured to store instructions;
and
a processor coupled to the memory and configured to execute the instructions, which cause the processor to be configured to:
determine a first sequence based on a Mersenne twister algorithm according to a code length of a target polar code and data bits that are to be sent by the apparatus;
perform a sort function on the first sequence based on a preset rule to determine a second sequence;
interleave the target polar code according to a mapping function to generate interleaved output bits, wherein the mapping function is determined according to the first sequence and the second sequenced;
and
transmitting the interleaved output bits to a wireless communication device.

5 more elements

A wireless communications device, comprising:

a memory configured to store instructions;
and
a processor configured to execute the instructions, which causes the processor to be configured to:
determine a first sequence based on a Mersenne twister algorithm according to a code length of a target polar code and data bits;
perform a sort function on the first sequence based on a preset rule to determine a second sequence;
interleave the target polar code according to a mapping function to generate interleaved output bits, wherein the mapping function is determined according to the first sequence and the second sequence;
and
transmit the interleaved output bits to another wireless communication device.

5 more elements

Dependencies are inferred from the claim text.

Polar code rate matching method and apparatus, and wireless communications device

Life of this patent

Polar code rate matching method and apparatus, and wireless communications device

Life of this patent

Abstract

Claims21