Systems and methods for rate matching when using common polar codes

Abstract

General polar codes are disclosed that encode symbols of a q-ary alphabet, where q≥2. Systems and methods are also disclosed for performing code rate matching when using general polar codes. In one embodiment, a method performed at a transmitter includes receiving a plurality of bits at a polar encoder. The plurality of bits represent a plurality of q-ary symbols, where q>2. The method further includes encoding the plurality of bits using the polar encoder to generate a codeword of q-ary symbols represented by bits. The method further includes puncturing the codeword according to a puncturing pattern to obtain a punctured codeword having a reduced bit length.

Description

[0001] claim priority [0002] This application claims U.S. Provisional Patent Application Serial No. 62 / 351,442, filed June 17, 2016, entitled "Systems and Methods for RateMatching When Using General Polar Codes," and filed May 29, 2017, entitled " Systems and Methods for Rate Matching When Using General Polar Codes," the priority of U.S. Patent Application Serial No. 15 / 607,584, both of which are incorporated herein by reference. technical field [0003] This application relates to error control coding and coding rate matching, and more particularly to coding rate matching when using common polar codes. Background technique [0004] In a communication system, information is transmitted from a transmitter to a receiver through a channel. For example, in a wireless communication system, a transmitter in a mobile device may transmit information to a receiver in a base station through a wireless channel. [0005] Channels may introduce errors into information transmitted ove...

AI Technical Summary

Problems solved by technology

However, due to the coding rate requirements, the codeword length that can be actually transmitted into the channel may not be exactly the bit length N b = 2 n

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