Signal detection method and equipment

Abstract

The embodiment of the invention relates to the technical field of wireless communication, and in particular relates to a signal detection method and equipment. The signal detection method and equipment are used for detecting multiple non-orthogonal multi-access user signals for pattern segmentation. By means of the embodiment of the invention, a receiving end performs non-orthogonal characteristic pattern detection of the received signals corresponding to a plurality of user equipment and determines target user equipment and detection signals; signals of one or more target user equipment are detected from the detection signals; therefore, detection of multiple non-orthogonal multi-access user signals can be carried out; and the non-orthogonal multi-access performance is improved.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method and equipment for detecting signals. Background technique [0002] Mobile communication needs to make all users share limited wireless resources, so as to achieve the purpose of simultaneous communication of different users and different locations and minimize interference. This is the multiple access technology. [0003] With the rapid development of wireless communication, the number of users and business volume are increasing explosively, which continuously puts higher requirements on the system capacity of wireless networks. Industry research predicts that mobile data service traffic doubles every year, and by 2020 there will be approximately 50 billion user devices accessing wireless mobile networks worldwide. Explosive user growth makes multiple access technology a central issue in network upgrades. Multiple access technology determines the...

AI Technical Summary

Problems solved by technology

[0006] Pattern Division Non-Orthogonal Multiple Access technology, referred to as Pattern Division Multiple Access (PDMA), is a technology based on the overall optimization of the multi-user communication system and joint processing by the sending end and the receiving end. At the sending end, based on multiple The non-orthogonal characteristic pattern in the signal domain is used to distinguish users. At the receiving end, based on the characteristic structure of the user pattern, the serial interference cancellation method is used to realize multi-user detection, so as to achieve further multiplexing of multi-users in existing time-frequency wireless resources. , to solve the problem in the prior art that the orthogonal method can only reach the inner boundary of the multi-user capacity boundary, resulting in a relatively low utilization rate of wireless resources

The traditional receiver is designed based on an orthogonal system, and it is difficult to effectively detect the signal of the user equipment for non-orthogonal multiple access

[0007] To sum up, there is currently no universal scheme for effective detection of user equipment signals for pattern-segmented non-orthogonal multiple access

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