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A Polar Code Decoder

A decoder and polar code technology, applied in the field of polar code decoders, can solve the problems of inflexible structure and poor applicability of polar code decoders.

Active Publication Date: 2021-01-05
HUAWEI TECH CO LTD
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  • Description
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Problems solved by technology

[0005] The application provides a polar code decoder, which is used to solve the technical problems of inflexible structure and poor applicability of the polar code decoder in the prior art

Method used

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Embodiment Construction

[0069] The present application will be described in detail below with reference to the accompanying drawings, and the specific operation methods in the method embodiments can also be applied to the device embodiments or system embodiments.

[0070] figure 1 It is a schematic diagram of a network architecture applicable to this embodiment of the application. The network architecture may include at least one network device 100 (only one is shown) and one or more terminal devices 200 connected to the network device 100 .

[0071] The network device 100 may be a device capable of communicating with the terminal device 200 . The network device 100 may be any device with a wireless transceiver function. Including but not limited to: base stations (for example, base station NodeB, evolved base station eNodeB, base station in the fifth generation (the fifth generation, 5G) communication system, base station or network equipment in future communication system, access node in WiFi sys...

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Abstract

A polar code decoder and decoding method. The polar code decoder comprises a decoding unit and a control unit communicationally connected to the decoding unit. The decoding unit comprises m input ends and n paths. The m input ends are selectively connected to the n paths. The control unit is used for sending a first control signal to the decoding unit. The first control signal is used for indicating an SC decoding mode or an SCL w1 decoding mode. The decoding unit is used for receiving the first control signal sent by the control unit, and configuring the SC decoding mode for decoding or configuring the SCL w1 decoding mode for decoding according the first control signal. Hence, the polar code decoder provided by the present application can implement different decoding modes by means of selective connection between the input ends and the paths, so that one decoder can implement decoding with different performance and different parallelism degrees, the flexibility in selection of speed performance is achieved, and two-stage decoding can be achieved based on the decoder to accelerate a PDCCH blind detection process.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a polar code decoder. Background technique [0002] In a communication system, channel coding can ensure against interference in information transmission and reliably transmit information data to receiving devices. Usually, the sending device needs to encode the information data to obtain coded bits, interleave the coded bits, map the interleaved bits into modulation symbols, and then process and send the modulation symbols through the communication channel. After the receiving device receives the modulation symbols, it decodes them through a decoder and recovers them into information data. [0003] 3GPP selects polar (Polar) codes for 5G enhanced mobile broadband (enhance mobile broadband, eMBB) service control channel coding. With its unique channel polarization characteristics, Polar codes can achieve better error correction performance than other known code types suc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03M13/15
CPCH03M13/15
Inventor 张玉伦游治
Owner HUAWEI TECH CO LTD
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