A Method for Measuring and Calculating the Azimuth Angle of Mobile Communication Base Station Antenna
A mobile communication base station and antenna azimuth technology, which is used in the measurement and calculation of the relative gain distribution information of the antenna radiation to determine the horizontal installation azimuth of the antenna. Stable and informative effects
Active Publication Date: 2018-12-07
上海方库信息科技有限公司
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However, due to certain theoretical limitations of its algorithm, its core calculation process can only rely on probability statistics for calculation. Due to the influence of factors such as the number of samples and the distribution of test points, the calculation results will fluctuate to a certain extent, resulting in low accuracy and reliability.
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[0033] The technical content of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0034] In mobile communication systems, the base station antennas used have different radiation gains at various orientation angles on the installation horizontal plane. Under the spatial coordinates with the base station as the center point, take the gain values of each angle and connect them to form a sector-like area, and the outer edge of the horizontal or vertical plane is the gain envelope of the base station antenna in the horizontal or vertical direction.
[0035] Such as figure 1 and figure 2 As shown, the shape of the gain envelope of the base station antenna includes multiple adjacent lobes of different sizes. The shape of each lobe is similar to a spindle, and the gain of the main lobe is much stronger than that of the other side lobes, and it is in the middle. According to the design and production s...
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The invention discloses a method for measuring an azimuth angle of a mobile communication base station antenna, and includes the steps of: performing a drive test on a cellular mobile communication network, and measuring radiation relative gain distribution information of a target base station antenna at each azimuth angle of an installation horizontal plane; based on the shape characteristics of a gain envelope line formed by the radiation relative gain distribution information, extracting main lobe distribution of the target base station antenna in a horizontal direction and a central ray angle; and obtaining the azimuth angle of the antenna according to the main lobe distribution information and the central ray angle. According to the method for measuring the azimuth angle of the mobile communication base station antenna, people do not need to purchase or install special hardware by climbing up to a tower, and can complete measurement only by utilizing drive test data of an existing drive test terminal and sweep generator, the cost is low, and engineering implementation is easy; and a calculation result is high in degree of accuracy and stability, and a requirement for optimizing work of the cellular mobile communication network can be satisfied.
Description
technical field [0001] The invention relates to an antenna azimuth measurement method, in particular to a method for determining the horizontal installation azimuth of the antenna by measuring and calculating the relative gain distribution information of the antenna radiation according to the characteristics of the directional antenna of a mobile communication base station, which belongs to the technical field of mobile communication. Background technique [0002] In a mobile communication system, the transmission and reception of signals need to rely on antennas. Especially in a cellular mobile communication network, a base station mainly uses a directional antenna (referred to as a base station antenna) for signal coverage in a specific area. Therefore, the horizontal installation azimuth of the base station antenna (abbreviated as the azimuth) is a very important engineering construction parameter, which plays a vital role in the actual coverage effect of the cell and the...
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IPC IPC(8): H04W24/02H04W24/08H04W16/18
CPCH04W16/18H04W24/02H04W24/08
Inventor 陈平潘荣伟耿扬
Owner 上海方库信息科技有限公司