A precoding method, device and electronic equipment

Abstract

Embodiments of the present invention provide a precoding method, device, and electronic equipment, including: selecting the optimal codeword of the current channel according to the Type I codebook scheme, and calculating the chord distance between the optimal codeword and the current channel as the target Chord distance, where the target chord distance represents the similarity between the optimal codeword and the current channel on the vector, and if the target chord distance is not greater than the preset chord distance, then update the optimal codeword according to the Type II codebook scheme, and Send the precoding information carrying the index of the updated optimal codeword to the base station, so that the base station performs precoding according to the index of the updated optimal codeword, since the optimal code is determined according to the Type I codebook scheme After the word, when the similarity between the optimal codeword and the current channel on the vector and the preset chord distance are not greater than the preset chord distance, the optimal codeword can be updated according to the Type II codebook scheme, realizing dynamic adjustment Codebook scheme.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to a precoding method, device and electronic equipment. Background technique [0002] In the past two years, the research on 5G technology in the industry and academia has entered a stage of full swing, among which Massive MIMO (Massive Multiple-In Multiple-Out, large-scale multiple-input multiple-output technology) is still one of the key technologies of the physical layer. It plays an important role in improving system capacity and spectrum efficiency. [0003] The Massive MIMO system uses array antennas for data transmission, which can increase system capacity, improve spectrum efficiency, and enhance stability without increasing signal bandwidth and power. However, due to the large number of transmitting antennas at the base station and the limited processing capability of user equipment, precoding technology has become the main interference suppression technol...

AI Technical Summary

Problems solved by technology

[0007] Although the codebook-based precoding scheme released by 3GPP specifies two types of codebooks for different scenarios, it cannot dynamically adjust the selected scheme category under changing channel conditions.

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