Encoding method and apparatus

By constructing Polar codes in the encoding and decoding methods of the transmitting and receiving devices, the decoding performance problem caused by the different retransmission sequence lengths in HARQ transmission is solved, thereby improving decoding performance and retransmission flexibility.

WO2026123884A1 Publication Date: 2026-06-18HUAWEI TECH CO LTD
0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
HUAWEI TECH CO LTD
Filing Date
2025-09-23
Publication Date
2026-06-18

AI Technical Summary

⚠Technical Problem

In the Hybrid Automatic Repeat Request (HARQ) transmission mechanism, the construction of Polar codes is difficult, especially when the retransmission sequence lengths are different, which affects decoding performance.

⚗Method used

By executing encoding and decoding methods separately at the transmitting and receiving devices, Polar codes are constructed based on different retransmission sequence lengths to determine the information bit set and the frozen bit set, thus achieving polar coding and improving decoding performance.

🎯Benefits of technology

With different retransmission sequence lengths, the decoding performance and retransmission flexibility are improved, the implementation process is simplified, and the transmission reliability of information bit sequences is enhanced.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

Abstract

An encoding method and apparatus, relating to the technical field of communications, and capable of constructing Polar codes on the basis of different repeat sequence lengths to improve decoding performance. The method comprises: mapping information bits corresponding to A first bits among K first bits to A second bits among K second bits of a first sequence having a length of (N2-N1), to obtain a second sequence and perform polar encoding, to obtain a first encoded bit sequence having a length of (N2-N1), the K second bits comprising a first set of information bits and a second set of information bits; the first set of information bits comprising T most reliable bits among bits in a second reliability sequence other than a first set of pre-frozen bits, the first set of pre-frozen bits being determined on the basis of M2 and N2; and the second set of information bits comprising (K-T) most reliable bits among bits in the second reliability sequence other than the first set of information bits and a second set of pre-frozen bits, T being determined on the basis of K, M2, and N2.
Need to check novelty before this filing date? Find Prior Art