Method for flexibly setting beam width of omni-directionally transmitting channel

A technology of omnidirectional transmission and beam width, which is applied in the field of time division synchronous code division multiple access mobile communication system, can solve the problems of poor antenna adaptability, inability to continuously adjust, and increase the difficulty of network coverage requirements, so as to reduce costs and improve adaptability Effect

Active Publication Date: 2012-04-25
THE RES INST OF TELECOMM TRANSMISSION MIIT +1
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

The width of this static beam is generally fixed and not dynamically adjusted. It is usually set to a fixed value when the antenna leaves the factory; or it is set to several static fixed angles by the base station, usually 3-4, and cannot be continuously adjusted according to the environment.
[0005] The above-mentioned method of setting a fixed value makes the adaptability of the antenna to the network environment poor, and the antenna needs to be replaced when the environment changes, and the cost of network maintenance is high; The difficulty of the network fully meeting the coverage requirements

Method used

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  • Method for flexibly setting beam width of omni-directionally transmitting channel
  • Method for flexibly setting beam width of omni-directionally transmitting channel
  • Method for flexibly setting beam width of omni-directionally transmitting channel

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Embodiment Construction

[0046] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, but it is not intended to limit the present invention.

[0047] Such as figure 1 The schematic diagram of multi-element antenna beamforming principle is shown, including antenna array, beamforming network and algorithm control unit. The algorithm control unit generates the signal weighting vector {W 0 , W 1 , W 2 ,...W n}, these weighted vectors are multiplied by the beamforming network and the transmitted signal to form signals with different amplitudes and phases, and then sent to the antenna vibration array through the A / D conversion and sending and receiving unit. Signals with different amplitudes and phases are superimposed in the air, the signal strength in the desired direction can be strengthened, and the signal strength in other directions can be weakened or even cancelled, thereby forming a signal...

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Abstract

The invention relates to a method for setting omnidirectional emitting channel beam width, which is mainly used for a mobile communication system using multiple array element smart antennas, such as the TD-SCDMA mobile communication system. The invention allows for no replacement of network antenna and carries out consecutive dynamic flexible setting or regulating the beam width of the omnidirectional emitting channel by providing a corresponding test for the system or according to network performance indexes, and using multi-array-element smart antennas, so as to reach the ideal omnidirectional emitting channel beam width compatible to the environment, and fully meet the requirements of network coverage. The invention can significantly improve the adaptability of antenna to network environment without replacing the antenna, and allow for consecutive dynamic regulation of omnidirectional emitting channel beam width in response to the changes in the network environment or communicationquality, thus satisfying the requirements of flexible coverage of the network to the community; in addition, the invention can apparently reduce the network maintenance cost, and lower the requirements of specific parameters of the products, thus making the selection of products more flexible and convenient.

Description

technical field [0001] The present invention relates to the method for setting the beam width of the omnidirectional transmission channel applied in the mobile communication system, more precisely, the present invention relates to the setting method of the channel beam width of the omnidirectional transmission of the cell of the mobile communication system using the multi-element smart antenna , especially suitable for time division synchronous code division multiple access mobile communication system (Time Division-Synchronous Code Division Multiple Access, hereinafter referred to as TD-SCDMA). Background technique [0002] In a cellular mobile communication network, antennas with different beamwidths are usually used to cover cells in different geographical environments, so as to effectively reduce the interference to adjacent cells under the premise of reasonable coverage for one’s own cell, so as to achieve a good overall network overlay effect. [0003] Due to the fact...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/04H04B7/26
Inventor 李文宇万屹魏贵明王志勤徐霞艳
Owner THE RES INST OF TELECOMM TRANSMISSION MIIT
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