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A multi-user mimo system and method

A multi-user and mobile device technology, applied in the field of multi-user MIMO system, can solve the problem of large amount of feedback information

Inactive Publication Date: 2019-10-29
SHANGHAI RES CENT FOR WIRELESS COMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a multi-user MIMO system and method for solving the problem in the prior art that the amount of information that needs to be fed back to generate a control matrix is ​​relatively large

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  • A multi-user mimo system and method
  • A multi-user mimo system and method

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Embodiment Construction

[0030] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention.

[0031] It should be noted that the diagrams provided in this embodiment are only schematically illustrating the basic idea of ​​the present invention, and only the components related to the present invention are shown in the diagrams rather than the number, shape and shape of the components in actual implementation. Dimensional drawing, the type, quantity and proportion of each component can be changed arbitrarily during actual impleme...

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Abstract

The invention provides a multiuser MIMO system and method. The multiuser MIMO system comprises K mobile devices and a base station, each mobile device is equipped with M antennas, the base station comprises a detection frame sending module used for generating a detection frame and sending the detection frame to the mobile devices by broadcasting; a feedback matrix acquisition module used for acquiring feedback matrixes sent by all mobile devices, wherein the feedback matrixes comprise feedback channel feature information of the mobile devices; and a control matrix generating module used for generating a control sub-matrix for each mobile device by using all feedback matrixes excluding the feedback matrix of its own, and combining all control sub-matrixes into a control matrix. According to the multiuser MIMO system and method in the technical scheme provided by the invention, in a multiuser downlink transmission scene, the method for generating a beamforming control matrix proposed for a user channel feature value feedback scene is used for solving the problem that the control matrix is difficult to generate in the feature value feedback scene.

Description

technical field [0001] The present invention relates to a communication technology, in particular to a multi-user MIMO system and method. Background technique [0002] MIMO technology has become one of the key technologies of the next generation wireless communication system. In order to further improve transmission efficiency, in practical applications, MIMO systems often require a base station (Base Station, BS) to communicate with multiple mobile stations (Mobile Station, MS) at the same time, such as the most common cellular systems and wireless local area networks ( Wireless Local Area Network, WLAN), etc., that is, a point-to-multipoint multi-user MIMO (Multi-user MIMO) system. Multi-user MIMO uplinks are often referred to as multiple access channels, and downlinks are broadcast channels. In the uplink, all users work on the same frequency band and send signals to the same base station, and then the base station uses appropriate methods to distinguish user data. The ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/0452H04B7/0456
CPCH04B7/0417H04B7/0452
Inventor 彭俊宇康凯钱骅
Owner SHANGHAI RES CENT FOR WIRELESS COMM