Method for interference suppression of idem frequency group network through scheduling

A technology of interference suppression and co-frequency networking, which is applied in the field of co-frequency interference suppression in OFDM systems, and can solve problems such as co-frequency networking interference in wireless mobile communication systems

Inactive Publication Date: 2008-10-08
ZTE CORP
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0012] The technical problem to be solved by the present invention is to provide a method for suppressing interference in same-frequency networking through scheduling, to s...

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  • Method for interference suppression of idem frequency group network through scheduling
  • Method for interference suppression of idem frequency group network through scheduling
  • Method for interference suppression of idem frequency group network through scheduling

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Embodiment Construction

[0027] In order to solve the disadvantages of the traditional technical solution, the present invention further elaborates a method for suppressing interference in same-frequency networking through scheduling in the present invention through the following specific examples. The specific implementation is described in detail below, but it is not intended to Limitations of Invention.

[0028] The present invention mainly aims at the problem of system performance degradation caused by inter-cell interference in the same-frequency networking in a wireless communication system, and proposes a related solution for interference suppression, aiming to reduce inter-cell interference and increase coverage and traffic, and improve the spectral efficiency of the system.

[0029] Such as figure 1 As shown, the two cells controlled by base stations BS1 and BS2 are adjacent. Terminals SS1 and SS2 are located within the coverage of BS1; terminals SS3 and SS4 are located within the coverage ...

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Abstract

The present invention discloses a method for suppressing the interference of co-frequency network through scheduling. The method comprises the following steps: firstly sorting or ranking by each cell according to the latent interference state of the subscriber in the cell to other cell; and then scheduling by each cell according to the sorting and ranking of the subscriber to obtain the purposes of suppression or elimination to the co-channel interference. The method provided by the invention can effectively reduce the co-channel interference in a wireless communication system and increases the efficiency of frequency spectrum thereby further increasing the coverage and flow capacity of the system.

Description

technical field [0001] The invention relates to a method for suppressing same-frequency interference in a wireless communication system, in particular to a method for suppressing same-frequency interference in an OFDM system. Background technique [0002] Interference in wireless and mobile communication systems mainly includes co-channel interference, adjacent frequency interference, out-of-band interference, and intermodulation interference. The co-frequency interference of the system means that some or all cells in the network use the same frequency point for data transmission, and there will be mutual signal interference between the cells. Co-channel interference can generally be divided into intra-cell interference, inter-cell interference, interference between different communication standards, interference between different operators, and interference caused by system equipment. [0003] Interference in the cell mainly includes multipath interference, near-far effect...

Claims

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Application Information

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IPC IPC(8): H04B7/208H04Q7/36H04B1/707H04B1/10
Inventor 张鹏
Owner ZTE CORP
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