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Apparatus and method for inferring the amount of interference, wireless communication system and controlling method thereof

A wireless communication system and a technology of interference amount are applied in the field of interference amount estimation devices to achieve the effect of preventing communication quality from deteriorating

Inactive Publication Date: 2007-09-12
NEC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

If the interfered terminal 302 observes this power change, it is judged that there is an interference wave
Or when a high received power is observed after data reception, it is judged that there is an interference wave

Method used

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  • Apparatus and method for inferring the amount of interference, wireless communication system and controlling method thereof
  • Apparatus and method for inferring the amount of interference, wireless communication system and controlling method thereof
  • Apparatus and method for inferring the amount of interference, wireless communication system and controlling method thereof

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Embodiment Construction

[0060] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 shows the configuration of a communication control device including an interference amount estimating device according to a first embodiment of the present invention. Communication control device 10 includes: transmission standby information acquisition unit 110 and interference amount estimation unit 210 constituting interference amount estimating means; The interference amount estimation unit 210, the used frequency band calculation unit 211, and the call reception control unit 212 are provided at an access point that communicates with a plurality of terminals. The transmission standby information acquisition unit 110 is provided in each terminal connected to the access point.

[0061] The transmission standby information acquisition unit 110 measures transmission standby information indicating the extent to which the terminal is forced to wait before ...

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Abstract

A wait-time acquisition unit measures a wait time before transmission of data in an exposed terminal, and an interference-amount inferring unit infers the amount of interference in the exposed terminal based on the wait-time information. A channel-utilization calculation unit calculates an amount of channel utilization based on the inferred amount of interference. A call admission controller controls call admission based on the amount of channel utilization that is considered with the amount of interference in the exposed terminal.

Description

technical field [0001] The present invention relates to an interference amount estimating device and method, and more particularly to an interference amount estimating device and method for estimating an interference amount from another terminal in wireless communication. Also, the present invention relates to a communication system and a control method thereof, and particularly to a radio system and a control method thereof that perform control based on an estimated amount of interference. Background technique [0002] Wireless communications such as wireless LANs are becoming popular. In a wireless LAN, a wireless link is established between an access point and a terminal to transmit and receive data (data group). In wireless communication, because wireless signals are used in data transmission and reception, it is difficult to completely eliminate interference between wireless signals, and once interference occurs, there is a problem of degradation in communication quali...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/28H04L12/56H04L1/00H04B1/707H04B7/00H04B17/00H04W16/02H04W24/00H04W24/02H04W72/54H04W84/12H04W88/08
CPCH04W72/1221H04B1/1027H04B17/345H04B17/005H04W24/08
Inventor 中山悟志山野悟
Owner NEC CORP
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