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A method and a device for reducing impact of interference on a control channel

A control channel and broadcast control channel technology, applied in the field of reducing the impact of interference on the control channel, and can solve problems such as loss of effectiveness

Inactive Publication Date: 2006-11-22
MOTOROLA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

If the interferer succeeds in this purpose, the entire cell will be rendered useless to the subscribers using the wireless communication unit

Method used

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  • A method and a device for reducing impact of interference on a control channel
  • A method and a device for reducing impact of interference on a control channel

Examples

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Embodiment Construction

[0017] see figure 1 , shows an embodiment of the method for reducing the influence of interference on the control channel according to the present invention.

[0018] By duplicating the first control channel into a plurality of control channels 104, and switching the communication device to the duplicated control channels, the impact of interference on the control channels is reduced. Each of these replicated control channels includes exactly the same downlink information as the first control channel. The first control channel is duplicated after detecting 102 interference with the first control channel. Duplication is performed by the base transceiver station as soon as the base transceiver station detects interference. When duplicating the first control channel, the base transceiver station transmits a list 106 of available duplicated control channels over the broadcast control channel.

[0019] When the information transmitted 106 over the broadcast control channel is re...

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PUM

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Abstract

A method of reducing impact of interference on a first control channel in a digital wireless communication system comprising a backup control channel, wherein the first control channel is being replicated (104) into plurality of control channels and a wireless communication unit operating on the first control channel switches (118) to one of the replicated control channels.

Description

technical field [0001] The present invention relates generally to wireless communication systems, and more particularly to reducing the impact of interference on control channels. Background technique [0002] Wireless telecommunications systems provide voice and data transmission from places where communication over the Public Switched Telephone Network (PSTN) or other wired networks is not possible. Communication link quality in wireless transmissions can be affected by interference and jamming. It is important to note that the term "jamming" is used when a jamming signal is intentionally generated, while for an unintentional signal, the same phenomenon is called "jamming". However, in both cases the physical phenomenon is the same and is considered interference, so every time the term "interference" is used hereinafter unless otherwise stated, it covers both intentional and unintentional signals causing interference. For systems operating in relay mode, where the base s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04K3/00H04W24/04H04W36/00
CPCH04K3/226H04K2203/16H04W24/04H04W48/08H04W72/541H04K3/00H04W36/00H04W48/10
Inventor 丹尼·扎多克奥伦·佩莱德马克·沙哈夫
Owner MOTOROLA INC
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