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Coding and decoding method, device and system

A coding device and coding method technology, applied in the field of wireless communication, can solve problems such as decoding performance degradation and decoding errors, and achieve the effects of improving decoding performance, increasing accuracy, and reducing false alarm probability

Pending Publication Date: 2020-05-26
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Another example is that the decoding of the information bit sequence is correct, but the RNTI corresponding to the path that finally passes the CRC check is not the RNTI used by the sender for scrambling, which will lead to decoding errors and degrade the decoding performance

Method used

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  • Coding and decoding method, device and system
  • Coding and decoding method, device and system
  • Coding and decoding method, device and system

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Embodiment Construction

[0144] The technical solutions proposed by the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0145] The wireless communication systems mentioned in the embodiments of this application include but are not limited to Global System of Mobile Communication (GSM for short) system, Code Division Multiple Access (Code Division Multiple Access, CDMA for short) system, wideband code division multiple Wideband Code Division Multiple Access (WCDMA for short) system, General Packet Radio Service (GPRS for short), Long Term Evolution (LTE for short) system, Frequency Division Duplex (FD) of LTE DivisionDuplex (FDD for short) system, Time Division Duplex (TDD for short) of LTE, Universal Mobile Telecommunication System (UMTS for short), Worldwide Interoperability for Microwave Access, The three major application scenarios of WiMAX) communication system and next-generation 5G mobile communication system, namely ...

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Abstract

The invention discloses a coding and decoding method. The method comprises the following steps that a sending end acquires a first bit sequence; the sending end performs sequence transformation on thefirst bit sequence to obtain a second bit sequence; the sending end scrambles the second bit sequence by using a radio network temporary identifier RNTI to obtain a third bit sequence; the sending end performs polarization Polar coding on the third bit sequence to obtain a coded bit sequence; and the sending end sends the coded bit sequence. Correspondingly, a receiving end sequentially executesdecoding, RNTI descrambling, deserializing and CRC checking processes, and finally outputs a decoded bit sequence. According to the coding and decoding method provided by the invention, the correct bit sequence can be quickly and accurately recovered, so the RNTI false alarm probability during decoding is reduced, the decoding accuracy is improved, and the decoding performance is greatly improved.

Description

technical field [0001] The present application relates to the field of wireless communication, and in particular to a coding and decoding method, coding and decoding device and system. Background technique [0002] In a wireless communication system, when the sending end sends a bit sequence to the receiving end, in order to check the correctness of the received bit sequence at the receiving end, the sending end can add several (for example, 24) check bits to the information bit sequence . Further, the sending end may use a Radio Network Tempory Identity (RNTI for short) to scramble the last few bits (for example, the last 16 bits) of the parity bits, and this process is called RNTI scrambling. Subsequently, the bit sequence scrambled by RNTI is processed by channel coding, rate matching and modulation, and then sent to the receiving end. The receiving end processes the received data through demodulation, de-rate matching, etc., and then inputs it to the decoder for decodi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03M13/27H03M13/00
CPCH03M13/2757H03M13/6522
Inventor 颜冯尧
Owner HUAWEI TECH CO LTD
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