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A method for improving service transmission quality of mobile communication system

A mobile communication system and service transmission technology, applied in the field of improving the service transmission quality of mobile communication systems, can solve the problems of waste of wireless resources, inability to guarantee normal calls, and high block error rate

Inactive Publication Date: 2009-12-16
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Considering that in extreme cases, the transmission quality is very poor, the bit error rate (Bite-Error-Rate, BER) and the block error rate are very high, and normal calls cannot be guaranteed. If the wireless connection is still maintained, then it is a problem for wireless resources. wasteful and therefore degrades system performance

Method used

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  • A method for improving service transmission quality of mobile communication system
  • A method for improving service transmission quality of mobile communication system
  • A method for improving service transmission quality of mobile communication system

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Embodiment Construction

[0023] In order to better illustrate specific embodiments of the present invention, below in conjunction with accompanying drawing, further detail as follows:

[0024] figure 1 is the measurement control flow chart between the base station controller and the base station, such as figure 1 shown, including:

[0025] Step 101, the base station controller sends a measurement request message to the base station, requiring the base station to measure the transmission quality of the uplink, which is specifically expressed as measuring the bit error rate BER of the physical channel;

[0026] Step 102, the base station performs measurement according to the requirements, and reports the result to the base station controller when the reporting requirements are met;

[0027] Step 103, enter the uplink outer loop power control decision process.

[0028] figure 2 is the uplink outer loop power control decision-making flow chart, corresponding to figure 1 Step 103 in, as shown in the ...

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Abstract

The invention discloses a method for improving service transmission quality of a mobile communication system, comprising the following steps: a base station compares the measured value of the uplink wireless link quality with a target quality value in real time, and if the measured value is low, the target signal-to-interference ratio is raised ; If the adjusted target SIR exceeds the maximum allowable SIR, reduce the transmission rate of the uplink; if the current service has a guaranteed bit rate requirement, then compare the transmission rate of the uplink with a one-level reduction Whether it is not less than the guaranteed bit rate, if yes, lower one level, if not, release the wireless connection, if there is no requirement for the guaranteed bit rate, then lower one level, if the current transmission rate is already the lowest level, then release the wireless connection .

Description

technical field [0001] The invention relates to a method for improving system performance in the third generation mobile communication system, in particular to a method for improving service transmission quality of the mobile communication system. Background technique [0002] In the 3G CDMA (Code Devision Multiple Address) system, the mobile stations work on the same frequency, and the base stations only rely on the spreading codes of the mobile stations to distinguish them. For the mobile station at the edge of the cell and at the center of the cell, the path losses of the two are different. If two mobile stations transmit with the same power, the signal interference of the mobile station farther from the base station is relatively small, resulting in a large bit error, thus forming a near-far effect. On the other hand, the wireless channel of mobile communication has a wideband dynamic frequency band. These characteristics are related to the nature of mobile users, and a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/005
Inventor 史莉荣
Owner ZTE CORP
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