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Group-based millimeter wave (MMW) communication multi-beam scheduling method

A scheduling method and multi-beam technology, applied in wireless communication, electrical components, network planning, etc., can solve problems such as reducing system spectrum efficiency, limiting beam combination diversity, and insufficient utilization of system hardware resources, so as to improve system spectrum efficiency , Reduce the effect of inter-beam interference

Active Publication Date: 2017-09-15
XIDIAN UNIV
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Problems solved by technology

Although this method can reduce inter-beam interference, when the total number of users is very large, the number of scheduled beams and the number of users will approach the number of radio frequency links, and achieve multi-user diversity gain, but there are still the following deficiencies: ( 1) Selecting between fixed beam subsets limits the diversity of beam combinations and reduces the spectral efficiency of the system; (2) When the total number of users is small, the number of scheduled beams will be significantly smaller than the number of radio frequency links. Insufficient utilization of system hardware resources

Method used

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[0027] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations to the present invention.

[0028] refer to figure 1 , a packet-based millimeter wave communication multi-beam scheduling method, comprising the following steps:

[0029] Step 1. The sending end generates N beams to obtain a beam set {f(1), f(2),...,f(N)}, where f(N) represents the Nth beam, and N is the total number of beams;

[0030] The method of generating N beams at the sending end is as follows: the sending end constructs a DFT matrix

[0031]

[0032] The value of the element on the pth row and the qth column is f(p,q), and let Obtain N beams, where, j means (-1) 1 / 2 , q=1,...,N, p=1,...,M, M represents the total number of antennas at the sending...

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Abstract

The invention provides a group-based millimeter wave (MMW) communication multi-beam scheduling method. Technical problems of low system spectrum efficiency and insufficient hardware resource utilization in the prior art are solved. The method comprises the following realization steps: a sending end generates beams to obtain a beam set; the sending end groups the beaming set to obtain a beaming group set; the sending sends a training signal to a user by using each beam in the beam set; the user computes a signal-to-interference-to-noise rate (SINR) of each beam in the beam set, and feeding back the maximum SINR and the optimal beam serial number corresponding to the maximum SINR to the sending end; the sending end performs beam scheduling on each beam in the beam group set. By using the scheduling method provided by the invention, the system spectrum efficiency can be effectively improved, the system hardware resource is sufficiently utilized, and the method can be used for the multi-user data transmission.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and relates to a millimeter wave communication multi-beam scheduling method, in particular to a group-based millimeter wave communication multi-beam scheduling method, which can be used for multi-user data transmission. Background technique [0002] Millimeter Wave (Millimeter Wave) refers to electromagnetic waves with a frequency range between 30GHz and 300GHz. It has the advantages of short wavelength, wide frequency bandwidth and good directionality. Millimeter Wave communication refers to a wireless communication method that uses the millimeter wave frequency band for data transmission. . Millimeter-wave communication can be combined with large-scale multiple-input multiple-output technology to achieve beamforming. Array antennas are used to generate multiple beams with high gain at different spatial positions. The low interference between beams of millimeter-wave communication...

Claims

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Application Information

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IPC IPC(8): H04W16/10H04W72/08H04W72/12H04W16/28H04W72/04
CPCH04W16/10H04W72/121H04W16/28H04W72/046H04W72/541H04W72/542
Inventor 李晓辉杨冬华李丹涛袁江伟
Owner XIDIAN UNIV
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