Data transmission method and device based on user scheduling

A data transmission method and user scheduling technology, applied in the field of data transmission method and device based on user scheduling, can solve the problems of high computational complexity of precoding matrix and low efficiency of precoding matrix, so as to save inversion operation and speed up response , the effect of improving efficiency and speed

Inactive Publication Date: 2018-08-28
BEIJING SAMSUNG TELECOM R&D CENT +1
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Problems solved by technology

[0007] Aiming at the shortcomings of the existing methods, the present invention proposes a data transmission method and device based on user scheduling to solve the problems in the prior art that the calculation complexity of the precoding matrix is ​​high and the efficiency of determining the precoding matrix is ​​low , to reduce the computational complexity of the precoding matrix and improve the efficiency of determining the precoding matrix

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  • Data transmission method and device based on user scheduling
  • Data transmission method and device based on user scheduling
  • Data transmission method and device based on user scheduling

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Embodiment Construction

[0025] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary, and are only used to explain the present invention, and cannot be construed as limiting the present invention.

[0026] Those skilled in the art can understand that, unless specifically stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present invention refers to the presence of the described features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, Integers, steps, operations, elements, compo...

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Abstract

Embodiments of the invention provide a data transmission method and a data transmission device based on user scheduling, wherein the method comprises the following steps of: determining, according tothe acquired information of the user terminal equipment, a combination of corresponding data layers from an alternative multi-user pairing set; iteratively determining a pre-coding matrix of the combination of the data layers; determining a user scheduling result according to the pre-coding matrix, and performing data transmission to the corresponding user terminal equipment according to the userscheduling result. In the embodiments of the invention, the inverse operation of the matrix is saved, the computational complexity is greatly reduced, the efficiency and speed of determining the pre-coding matrix are improved, and the pre-coding matrix of the combination of the plurality of data layers of multi-user pairing may be determined quickly enough, without a reduction in system capacity.Therefore, the invention is capable of improving the efficiency of multi-user scheduling without affecting the system capacity, and accelerating the response to the user terminal device as a whole, thereby improving the user experience.

Description

Technical field [0001] The present invention relates to the field of wireless communication technology. Specifically, the present invention relates to a data transmission method and device based on user scheduling. Background technique [0002] In a mobile communication system that uses a multi-antenna MIMO (Multiple Input Multiple Output) technology, channels between different users have a certain degree of spatial isolation. Using the spatial channel isolation between different users, the same time / frequency / code resources can be used to simultaneously send signals to multiple users. In the MIMO system, these methods of simultaneously transmitting signals for multiple users using the same time / frequency / code resources are called MU (Multi-User, multi-user) MIMO technology. [0003] According to the MIMO theory, the capacity of the MIMO system under MU-MIMO is proportional to the number of base station antennas and the total number of multi-user receiving antennas. Through MU-MIM...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/0452H04B7/0456
CPCH04B7/0452H04B7/0456
Inventor 杨昂张然然朴明熙李建旭李明源桂鑫荆梅芳
Owner BEIJING SAMSUNG TELECOM R&D CENT
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