Polar code transmission method and device
A transmission method and coding technology, applied in the field of Polar code transmission methods and devices, can solve the problems of unsatisfactory polarization channel accuracy, affecting the improvement of Polar code encoding and decoding performance, etc.
Active Publication Date: 2018-11-23
HUAWEI TECH CO LTD
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[0004] The reliability sorting of polarized channels plays an important role in the coding and decoding performance of Polar codes, but at this stage, the accuracy of the reliability sorting of polarized channels is not ideal, which affects the coding and decoding performance of Polar codes in the application process further improvement of
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[0065] Embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.
[0066] like figure 1 As shown, the wireless communication system 100 applied in the embodiment of the present application includes a sending end 101 and a receiving end 102 . Wherein, the sending end 101 may be a network device, and the receiving end 102 is a terminal; or, the sending end 101 is a terminal, and the receiving end 102 is a network device. The network device may be a base station, or a device integrated with a base station and a base station controller, or other devices with similar communication functions.
[0067] It should be noted that the wireless communication systems mentioned in the embodiments of this application include but are not limited to: Narrow Band-Internet of Things system (English: Narrow Band-Internet of Things, referred to as: NB-IoT), Global System for Mobile Communications (English: Global System for Mobile Comm...
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The application relates to the technical field of the communication, and discloses a Polar code transmission method and device for improving the accuracy of the reliability ordering of a polarizationchannel. The method comprises the following steps: a sending end acquires a first ordering sequence, wherein the first ordering sequence represents the reliability ordering of N polarization channelsof the Polar code with code length as N, and the first ordering sequence is generated after adjusting the location of at least one first sequence number in a second ordering sequence or at least one second sequence number in the second ordering sequence; the second ordering sequence represents the reliability ordering of N polarization channels; if the reliability curve is formed according to natural ordering of the 0-th to the (N-1) the polarization channels, the reliability value of the polarization channel of the first sequence number is located at a valley point location of the curve, andthe reliability value of the polarization channel of the second sequence number is located at a peak point location of the curve; the sending end determines an information bit sequence number set according to the first ordering sequence, and performs Polar code encoding on the to-be-encoded bit according to the information bit sequence number set.
Description
technical field [0001] The embodiments of the present application relate to the field of communication technologies, and in particular, to a polar code transmission method and device. Background technique [0002] As the most basic wireless access technology, channel coding plays a vital role in ensuring the reliability of data transmission. In an existing wireless communication system, generally, a Turbo code, a Low Density Parity Check code (Low Density Parity Check, LDPC) and a polar (Polar) code are used for channel coding. Turbo codes cannot support information transmission with too low or too high a code rate. For the transmission of short and medium packets, Turbo codes and LDPC codes are difficult to achieve ideal performance under limited code length due to their own coding and decoding characteristics. In terms of implementation, Turbo codes and LDPC codes have high computational complexity in the process of encoding and decoding. Polar codes are theoretically p...
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Login to View More IPC IPC(8): H04L1/00H03M13/13
CPCH03M13/13H04L1/0009H04L1/0057
Inventor 周悦李榕陈莹黄凌晨王俊
Owner HUAWEI TECH CO LTD