Interleaver design for modulation with polar codes

EP4758758A1Pending Publication Date: 2026-06-17QUALCOMM INC
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Patent Information

Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
QUALCOMM INC
Filing Date
2023-08-08
Publication Date
2026-06-17

AI Technical Summary

Technical Problem

Current wireless communication systems, particularly in 5G NR technology, face challenges in improving modulation schemes for polar codes, which are essential for efficient data transmission and error correction.

Method used

The proposed solution involves an interleaver design that splits encoded bits into subsets and applies different interleaving schemes to each subset, maximizing diversity combining and improving polarization of polar codes. This design includes multiple interleavers, each using a specific pattern or cyclic shift, to map interleaved bits to different bit levels of modulated symbols.

Benefits of technology

The technical efficacy of this solution is enhanced performance in wireless communication systems, particularly in high-order modulation schemes, by reducing bit error rates and improving transmission efficiency over fading channels.

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Abstract

Aspects of the disclosure are directed to techniques for wireless communication, and specifically, to methods for interleaving and deinterleaving wireless data. In some examples, a wireless node may encode a plurality of bits to yield encoded bits. In some examples, the wireless node may interleave: (i) a first subset of one or more encoded bits via a first interleaving scheme, and (ii) a second subset of one or more encoded bits via a second interleaving scheme, wherein the one or more encoded bits of the second subset are different from the one or more encoded bits of the first subset. In some examples, the wireless node may map: (i) the interleaved first subset to a first bit level, and (ii) the interleaved second subset to a second bit level.
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