Multi-sector space multiplexing method and system based on uniform circular array antenna

Abstract

The invention discloses a multi-sector space multiplexing method and system based on a uniform circular array antenna. The multiplexing method comprises the following steps: determining each parameter of the uniform circular array antenna, acquiring an omni-directional directional diagram according to each parameter of the uniform circular array antenna so as to omni-directionally cover a first quadrant depression area of the residential area, acquiring two groups of cross sector beams to divide a second quadrant depression area of the residential area into two groups of sectors areas, wherein the two groups of sectors areas are used for omni-directionally covering the second quadrant depression area of the residential area, dividing frequency channels of the residential area into three groups which are respectively distributed to users in the omni-directional area and two groups of sectors areas. The invention considers the UCA directional diagram on two dimensions of a quadrant depression and an azimuth angle so that the UCA forms proper beam in a three-dimension space, and area division is conducted on the residential area, thereby realizing high gain beam covering of each beamedge area, and overcoming the problems of same frequency interference, frequent cross sector switch, and the like.

Description

technical field [0001] The invention relates to multi-antenna space multiplexing of wireless communication technology, in particular to a multi-sector space multiplexing method and system based on a uniform circular array antenna. Background technique [0002] In recent years, the wireless communication technology represented by the third generation mobile communication system has developed by leaps and bounds. However, with the continuous increase of mobile communication users and the emergence of a large number of new data services, how to use limited frequency resources to improve wireless channel capacity is still a problem to be solved. Especially in some hot spots with high traffic density (such as railway stations, airport waiting rooms, conference centers, commercial buildings) and hot spots (such as peak traffic periods, festivals, geological disasters, etc.), mobile communication traffic The amount of traffic and data traffic will increase exponentially, causing t...

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Problems solved by technology

[0005] First, a sectorized system usually uses a single fan-shaped beam group to cover the cell. In the edge area of ​​each beam, the pattern gain has a large attenuation, and the adjacent beams in this area are caused by the overlap of the pattern. (code pattern) interference is serious;

[0006] Second, the existing methods are only comprehensive methods for the direction diagrams only about the one-dimensional direction of the azimuth angle on the plane where the circular array is located (that is, at the 0° depression angle)

These methods do not consider the complex characteristics of the integrated pattern in the direction of the depression angle, and are only suitable for the case where the direction of the sending and receiving signal is close to 0° depression angle

Therefore, each sector is very close to each other, and it also faces the problem of reduced efficiency of the communication system caused by frequent cross-sector handovers caused by a large number of users moving around in the area below the antenna

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