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Method for ensuring stability of service transmission in wireless communication system

A wireless communication system and service configuration technology, applied in the field of ensuring the robustness of service transmission, can solve the problems that the receiving end cannot correctly analyze, the base station and the terminal cannot communicate correctly, and receive service channel errors, etc.

Inactive Publication Date: 2009-10-21
BEIJING XINWEI TELECOM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This reconfiguration method has a weakness, that is, the reconfiguration message is sent along with the service channel, and the message still follows the parameter requirements of the original service configuration during baseband processing, so when the channel fades, the reconfiguration The message may not be correctly parsed at the receiving end, resulting in a complete error in the downlink / uplink reception service channel, and the base station and terminal cannot communicate correctly, which seriously affects the robustness of the service channel transmission

Method used

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  • Method for ensuring stability of service transmission in wireless communication system
  • Method for ensuring stability of service transmission in wireless communication system

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Embodiment Construction

[0012] The present invention proposes a method, that is, when the base station continuously receives uplink service errors, or the base station continuously receives downlink service reception error feedback from the terminal, the parameter requirements of the service configuration are adjusted in time, and a dedicated downlink channel is used for Send the reconfiguration requirements of the service configuration.

[0013] When the base station continuously receives uplink service errors, the base station can adjust the uplink service configuration parameters alone, or adjust the downlink and uplink service configuration parameters at the same time; when the base station continuously receives downlink service reception error feedback from the terminal, the base station needs to adjust the downlink service configuration parameter.

[0014] The mapping relationship between the dedicated downlink channel and the physical subchannel is completed and fixed by the base station during sy...

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Abstract

The invention provides a method capable of reliably sending service reconfiguring information in time when channel conditions are poor, thereby the method enables terminals to correctly adjust service configuration parameters in time to ensure the stability of service transmission.

Description

Technical field [0001] The invention relates to a method for ensuring the robustness of service transmission in a wireless communication system. Background technique [0002] In the wireless communication system, the characteristics of the channel are determined by the radio wave propagation environment, and the propagation environment itself is quite complicated, which makes the characteristics of the wireless channel very complicated. Especially in mobile wireless channels, signal fading (that is, a sudden drop in signal strength) often occurs. [0003] When the base station and the terminal need to communicate, the base station will set up a certain service configuration according to the current channel conditions, and then send it to the terminal, and the terminal will receive it according to the parameter requirements in the service configuration (such as coding mode, coding rate, modulation mode, etc.) or Send traffic channel. When the channel conditions change, the origina...

Claims

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Application Information

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IPC IPC(8): H04W24/00H04W28/04H04L1/16H04L1/00
Inventor 黄俊周晖
Owner BEIJING XINWEI TELECOM TECH
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