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Method and arrangement for reducing the mutual interference of network subscribers in radio networks

A technology for network users and mutual interference, applied in the field of reducing mutual interference of network users in radio networks and devices, can solve problems such as cell conflict, difficulty in adjacent cells, unavailable WLAN equipment, etc., to reduce transmission power and increase Effect of data throughput and noise reduction

Inactive Publication Date: 2008-02-13
NXP BV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0016] However, according to the prior art, this may present the following disadvantages: Firstly, the regulation of the transmit power is not specified in the standard for the 2.4 GHz band, so most current WLAN devices are not available
Furthermore, reducing the size of the own radio cell means that it is more difficult or impossible for neighboring cells to detect the cell, which leads to an increased likelihood of cell collisions

Method used

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  • Method and arrangement for reducing the mutual interference of network subscribers in radio networks
  • Method and arrangement for reducing the mutual interference of network subscribers in radio networks
  • Method and arrangement for reducing the mutual interference of network subscribers in radio networks

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Embodiment Construction

[0041] FIG. 1 shows a process for randomly allocating idle channels defined by the IEEE 802.11 standard. When the current data transmission on the channel under study has ended, ie the "medium busy" phase has ended, then the time portion referred to in the standard as the "DIFS" phase follows. This is followed by the actual contention window, in which a station wanting to occupy the channel sends a channel request. To avoid collisions, ie when two stations send their channel requests at the same time and thus interfere with each other, the channel requests are randomly delayed. Therefore two or more stations do not transmit at the same time, because the transmission time of the corresponding channel request of each transmitter is determined by the end time of the previous DIFS phase plus the slot time (the position of which is determined by the random generator OK) to calculate. Channels are assigned to the station that sends the channel request first. All other stations re...

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Abstract

The object of the invention, which relates to a method and an arrangement for reducing the mutual interference of network subscribers in radio networks, is to provide a solution by means of which data collisions are reduced and thus the data throughput rate of a radio cell is increased. According to the invention, this object is achieved in terms of the method in that the cell size of a radio cell is adjusted by reducing the receiver sensitivity of one or more devices belonging to the radio cell if the device receives interference which disrupts its communication from another device belonging to a different radio cell.

Description

technical field [0001] The invention relates to a method for reducing mutual interference of network users in a radio network, wherein within a cellular radio network comprising at least two radio cells, in one of these radio cells devices assigned to said radio cells communicate with each other or Communicate via a public access point. [0002] The invention also relates to a device for reducing mutual interference of network users in a radio network. Background technique [0003] The method and arrangement relate to all cellular radio networks, wherein each cell of such a radio network can have a central access station. Here, the central access station can be understood as that the station is set inside the cell, but not necessarily at the center of the cell. Furthermore, the central access station is able to contact all mobile and / or non-mobile devices belonging to said cell via a radio link. In the following description, reference will mainly be made to a particular e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/28H04W16/06H04W16/14H04W52/04
CPCH04W16/06H04W52/04H04W16/14
Inventor 福尔克尔·奥厄
Owner NXP BV
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