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Method for improving quality of broadcasting service in mobile communication network

A broadcasting service and mobile communication technology, applied in the direction of transmission control/equalization, space transmission diversity, radio/inductive link selection and arrangement, etc., can solve the problems of affecting service quality, noisy voice, high receiving bit error rate, etc., and achieve improvement Effects of receiving quality, improving support capability, and ensuring system capacity

Active Publication Date: 2010-02-17
THE RES INST OF TELECOMM TRANSMISSION MIIT +1
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AI Technical Summary

Problems solved by technology

Therefore, in some areas in the cell, the terminal cannot receive broadcast services with good quality
Especially at the edge of the entire service area, terminals cannot achieve macro-diversity combining by receiving broadcast signals from multiple cells
In this way, in the absence of smart antenna shaping gain and diversity combining gain, the receiving bit error rate in this area will be higher, resulting in unclear broadcast images and noisy sounds, reducing user experience and affecting service quality
If the network is divided into multiple service areas to broadcast different content, then at the edge of the area, due to mutual interference, the service quality will further deteriorate

Method used

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  • Method for improving quality of broadcasting service in mobile communication network

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Embodiment Construction

[0036]The specific embodiment of the present invention will be further described in detail below in conjunction with the accompanying drawings. The above and other objects, features and advantages of the present invention will be apparent to those skilled in the art from the detailed description of the present invention.

[0037] The present invention first distinguishes whether the area where the power does not reach the expected value is located in the edge area, and adjusts the broadcast service signal by using power compensation or multi-element antenna beamforming.

[0038] Among them, the multi-element antenna beamforming principle is as follows: figure 1 Shown, including antenna array, beamforming network and algorithmic control unit. The algorithm control unit generates signal weighting vectors {W0, W1, W2,...Wn} on each element of the antenna according to the user's position and the horizontal beamwidth of the downlink beam, and these weighting vectors are multiplied...

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Abstract

The invention provides a method for improving the quality of a broadcasting service in a mobile communication network, which is invented to solve the problem that the quality of the broadcasting service in the prior cellular mobile communication network cannot be guaranteed. The method comprises the following steps: testing the received power strength of a broadcasting service channel in a service coverage region, and determining the location of a region in which the received power strength of the broadcasting service channel does not reach an expected value; if the region not reaching the expected value is positioned on the edge of the service region, superposing a beamformed broadcasting service channel with a different frequency or a different time slot which bears the same service on the basis of the prior signals in the service coverage region; and if the region not reaching the expected value is not positioned on the edge of the service region, performing joint adjustment of thepower of the broadcasting service channels of a plurality of cells in the service coverage region. The method can select different adjusting modes according to the location characteristics of the region not reaching the standard and improves broadcasting service signals by power compensation or multi-element antenna beamforming.

Description

technical field [0001] The invention relates to a method for improving broadcast service quality in a mobile communication network, in particular to a method for improving broadcast service quality in a TD-SCDMA network. Background technique [0002] In the cellular mobile communication network, mobile communication operators introduce broadcasting services into the cellular mobile communication network in order to provide multimedia graphic and text transmission services to users with the same needs while saving resources. That is to improve on the basis of the current mobile communication network, provide users with broadcast downlink channels, broadcast multimedia video information directly to all users, and help operators carry out various commercial applications such as multimedia advertisements, free and premium TV channels, and group sending of MMS , the mobile TV service can be carried out with a lower network deployment cost. This service is called MBMS service (Mu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/06H04B7/005H04Q7/36
Inventor 李文宇万屹魏贵明徐菲
Owner THE RES INST OF TELECOMM TRANSMISSION MIIT
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