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Method and system for reducing interference between base stations in fail-soft mode

A technology of fault weakening and base station subsystem, applied in the field of communication, which can solve the problems of terminal call drop, terminal signal, unable to get through the phone, etc.

Inactive Publication Date: 2011-06-22
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The area where the base station and other base stations cover overlap due to faults is likely to cause interference between cells due to the use of the same frequency point
[0004] In addition, from the perspective of the entire communication system, the terminals in the talking state frequently switch, which eventually leads to the terminal dropping calls, and the terminal in the idle state switches to the base station in the fault weakening mode, which will cause the terminal to have a signal and cannot make a call
[0005] The current existing technology does not solve the interference between base stations in the fault weakening mode and the resulting user call quality problems

Method used

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  • Method and system for reducing interference between base stations in fail-soft mode
  • Method and system for reducing interference between base stations in fail-soft mode
  • Method and system for reducing interference between base stations in fail-soft mode

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Embodiment Construction

[0049] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0050] The present invention provides a method for improving call quality in the weakened fault mode. When the base station enters the weakened fault mode, the frequency points are automatically replaced, and the weakened fault base station and other base stations do not use the same frequency point in the overlapped area, reducing the Interference to surrounding base stations does not affect the call quality of surrounding base stations.

[0051] Taking the CDMA system as an example, the method includes the following steps:

[0052] First, when the base station subsystem detects that the transmission link is in the fault weakening mode, it enters into the fault weakening mode;

[0053] After the base station subsystem enters the failure weakening mode, it automatically changes the frequency point and uses a new fre...

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Abstract

The present invention discloses a method for reducing interference between base stations in a fail-soft mode, wherein the method is implemented in such a way that: a base station subsystem comes into running in the fail-soft mode when detecting that transmission link is in the fail-soft mode; the base station subsystem changes frequency point automatically after coming into the fail-soft mode; the base station updates and sends an overhead message; and a mobile station re-calculates a locked frequency point and locks to the new frequency point carried in a CDMA (Code Division Multiple Access) channel list message when detecting that the overhead message is updated. The invention also discloses a system for reducing interference between base stations in the fail-soft mode. The method and the system for reducing interference between base stations in the fail-soft mode can effectively reduce the interference between base stations in the fail-soft mode without influence on conversation quality of circumjacent base stations.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method and a system for reducing interference between base stations and improving call quality in a fault weakening mode. Background technique [0002] When the link between the base transceiver station and the base station controller or the transmission link between the base station controller and the network side fails in an emergency, or when there is no transmission link configured, the base station will switch to the fault weakening mode. . [0003] For example, the CDMA system is a self-interference system. A certain user is interference to other users, and each cell will also cause interference to other cells, especially adjacent cells with the same carrier frequency. Due to the failure of the base station under the fault weakening and the transmission link on the network side, handover is not supported. The area where the coverage of the fault-weakened base sta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/30H04W36/06
CPCH04W24/04H04W48/08
Inventor 吕菱
Owner ZTE CORP
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