Encoding method, decoding method, apparatus, and device
AssigneeHuawei Technologies Co., Ltd.
InventorsAleksei Eduardovich Maevskii, Vladimir Gritsenko, Jian Wang, Hejia Luo, Gongzheng Zhang, Jie Jin
Life of this patent
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Abstract
A polar code encoding/decoding method in a communications system is provided, including: determining an information bit location set or a frozen bit location set of a polar code based on an interleaving operation or a corresponding de-interleaving operation; and encoding or decoding the polar code based on the determined information bit location set or frozen bit location set.
Claims17
A method in a communications system, comprising:
- receiving a bit sequence;
- constructing a polar code by determining an information bit location set or a frozen bit location set of the polar code;
- and
- encoding or decoding the bit sequence using the polar code based on the determined information bit location set or frozen bit location set;
- wherein the information bit location set or the frozen bit location set of the polar code is determined by:
- obtaining one subset of sub-channel locations of the polar code or a plurality of mutually exclusive subsets of sub-channel locations of the polar code, wherein a sub-channel location in each subset still belongs to this subset and does not belong to other subsets after undergoing any quantity of interleaving operations;
- and
- selecting a first part of the subset as the information bit location set or selecting a second part of subsets as the frozen bit location set wherein any subset in the first part of subsets is different from any subset in the second part of subsets.
A device in a wireless communication network, comprising a processor and a memory storing program instructions for execution by the processor;
- wherein when executed by the processor, the program instructions cause the device to:
- determine an information bit location set or a frozen bit location set of a polar code;
- construct the polar code based on the determined information bit location set or frozen bit location set;
- and
- use the polar code to encode or decode a bit sequence;
- wherein the information bit location set or the frozen bit location set of the polar code is determined by:
- obtaining one subset of sub-channel locations of the polar code or a plurality of mutually exclusive subsets of sub-channel locations of the polar code, wherein a sub-channel location in each subset still belongs to this subset and does not belong to other subsets after undergoing any quantity of interleaving operations;
- and
- selecting a first part of the subset as the information bit location set or selecting a second part of subsets as the frozen bit location set wherein any subset in the first part of subsets is different from any subset in the second part of subsets.
An apparatus in a communications system, comprising a polar code structure determining circuit and a polar code encoding/decoding module, wherein
- the polar code structure determining circuit is configured to determine an information bit location set or a frozen bit location set of a polar code by:
- obtaining one subset of sub-channel locations of the polar code or a plurality of mutually exclusive subsets of sub-channel locations of the polar code, wherein a sub-channel location in each subset still belongs to this subset and does not belong to other subsets after undergoing any quantity of interleaving operations;
- and selecting a first part of the subset as the information bit location set or select a second part of the subset as the frozen bit location set, wherein any subset in the first part of subsets is different from any subset in the second part of subsets;
- and
- the polar code encoding/decoding circuit is configured to encode or decode a bit sequence of a radio signal using the polar code based on the information bit location set or the frozen bit location set that is determined by the polar code structure determining module.
Dependencies are inferred from the claim text.