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Joint Analog Beam and User Scheduling Method in Digital-Analog Hybrid Communication

An analog beam and user scheduling technology, applied in diversity/multi-antenna systems, space transmit diversity, electrical components, etc., can solve problems such as high complexity and cost, system performance impact, etc., and achieve the effect of reducing scheduling complexity

Active Publication Date: 2020-02-18
SOUTHEAST UNIV
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  • Claims
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Problems solved by technology

Digital beamforming technology requires each antenna to be equipped with a radio frequency link, which can efficiently suppress interference between users and achieve optimal system performance, but the complexity and cost are too high
Analog beamforming technique greatly reduces complexity by using phase shifters, but system performance suffers

Method used

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  • Joint Analog Beam and User Scheduling Method in Digital-Analog Hybrid Communication
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  • Joint Analog Beam and User Scheduling Method in Digital-Analog Hybrid Communication

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Embodiment Construction

[0038] The present invention will be further illustrated below in conjunction with specific examples. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. After reading the present invention, modifications to various equivalent forms of the present invention by those skilled in the art fall within the scope defined by the appended claims of the present application.

[0039] For the MU-MIMO wireless communication system, the base station configures L transmitting subarrays, the number of users to be served is K (K≥L), and the number of codewords in the codebook is N. The embodiment of the present invention provides a method for joint analog beam and user scheduling in digital-analog hybrid communication, which implements joint analog beam and user scheduling in an MU-MIMO wireless communication system based on a codebook. Such as figure 1 As shown, the method of the prese...

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Abstract

The invention discloses a combined beam simulation and user scheduling method in digital-analog hybrid communication. The combined beam simulation and user scheduling is realized based on a code book. The method mainly comprises the beam simulation training stage and a combined beam simulation and user scheduling stage; in the beam simulation training stage, a base station performs the beam simulation training by using the codeword in the codebook in order, each user feeds back the measured receiving power of each reference signal and the corresponding codeword index number to the base station; in the combined beam simulation and user scheduling stage, the base station forms a corresponding reference signal receiving power table according to the reference signal receiving signal fed back by the user, and performs the combined beam simulation and user scheduling according to the user scheduling method provided by the invention.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and relates to a combined analog beam and user scheduling method in digital-analog hybrid communication. This method feeds back the reference signal received power obtained by each user corresponding to each codeword training to the base station through simulated beam training to form a table, and the base station performs joint simulated beam and user scheduling according to the reference signal received power information fed back by the user. Background technique [0002] With the widespread popularity of smart terminals and the explosive growth of network capacity, the demand for high-speed data transmission and reliable wireless communication is increasingly urgent. In the next generation of wireless communication systems, research on key technologies of high spectral efficiency is emphasized, and ultra-dense network deployment has become a an evolutionary idea. Millimeter wav...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/0452H04B7/06
CPCH04B7/0452H04B7/0617H04B7/0639H04B7/0684
Inventor 何世文侯琪黄永明王海明洪伟唐姗姗
Owner SOUTHEAST UNIV
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