Method for improving quality of broadcasting service in mobile communication network

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...

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

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