Coding method and device

Abstract

The invention discloses a coding method and device, and aims to unifying coding methods of ultrashort codes. The method comprises the following steps that: a transmitting end acquires an information bit to be coded; and the transmitting end performs PC-Polar code coding on the information bit to be coded according to a first construction parameter to obtain and transmit a coded bit sequence, wherein a check equation in the first construction parameter include a first element representing the bit location of the check information and a second element representing a check bit location; the firstelement corresponds to a first vector in a generation matrix of a PC-Polar code; the second element corresponds to a second vector in the generation matrix; if the first Hamming weight of the first vector is the same as the second Hamming weight of the second vector, the third Hamming weight of a modular two vector is greater than the first Hamming weight and greater than the second Hamming weight; and if the first Hamming weight is different from the second Hamming weight, the third Hamming weight is greater than a smaller value in the first Hamming weight and the second Hamming weight.

Description

technical field [0001] The present application relates to the field of communication technologies, and in particular to an encoding method and device. Background technique [0002] In communication systems of different wireless access technologies, different encoding methods are generally adopted to adapt to various application scenarios. In the Long Term Evolution (LTE) system, the Physical Layer ARQ Indicator Channel (Physical Hybrid ARQ Indicator Channel, PHICH), the Physical Layer Control Format Indication Channel (Physical Control Format Indication Channel, PCFICH), the physical layer uplink Control channel (Physical Uplink Control CHannel, PUCCH), physical layer uplink shared channel (Physical Uplink Shared CHannel, PUSCH) and other physical layer channels will involve the application of ultra-short codes with information vector length less than or equal to 13. In the existing LTE control channel scenario, when K<15, use repetition (repetition) code, simplex (simpl...

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Problems solved by technology

[0004] However, LTE-TBCC cannot uniformly encode ultra-short codes, and the Hadamard decoding complexity adopted by LTE-RM when the code length becomes larger is unacceptable

Therefore, in the LTE communication system, the fifth generation (5th Generation, 5G) communication system, or more possible communication systems, if multiple encoding methods are used, the terminal needs to support multiple sets of encoders and decoders, which will inevitably increase the number of terminals. the cost of

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