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Method for inhibiting interference during identical networking by 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: 2013-03-20
ZTE CORP
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  • Abstract
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  • 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 solve how to improve the spectrum efficiency of wireless mobile communication systems in the prior art, and to solve the interference problems existing in same-frequency networking

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  • Method for inhibiting interference during identical networking by scheduling
  • Method for inhibiting interference during identical networking by scheduling
  • Method for inhibiting interference during identical networking by scheduling

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Embodiment Construction

[0035] First, the core of a method for suppressing interference in co-frequency networking through scheduling in the present invention is described: ① each cell is classified or sorted according to the potential interference of users in the cell to other cells; ② each cell is scheduled based on user classification or sorting , to achieve the purpose of suppressing or eliminating co-channel interference.

[0036] Second, specify the present invention:

[0037] (1) The interference suppression method described is applied to a wireless communication system, and specifically includes the following parts:

[0038] (1) At least two base stations, each base station sends control information (including scheduling information) within the corresponding cell range

[0039] (2) There is at least one terminal communicating with the cell base station in each cell

[0040] (3) The frequency deployment of two adjacent base stations is the same, and co-frequency interference exists between a...

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Abstract

A method for restraining same-frequency-interference by scheduling comprises the following steps: (1) acquiring the potential interference environment of the users in each cell for the users in the other cells; (2) classifying or sorting for the users in each cell based on the potential interference environment; (3) according to the classifying or sorting result, scheduling the users in each cell so that the allocated resources for one or more users who have the strongest potential interference for each cell in local cell and the other cells, stagger from each other in the same system time-frequency resources space. The method could restrainthe same-frequency-interference between cells, promote the receiving performance for edge user, increase the cell coverage, and promote the system throughput and spectrum efficiency.

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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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/12H04L27/26H04W28/04H04W72/04
CPCH04W72/12
Inventor 蔡思东刘颖
Owner ZTE CORP
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