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Inter-cell interference suppression method and system with fractional frequency reuse

A technology of inter-cell interference and frequency reuse, applied in the field of communication, can solve problems such as inter-cell interference and LTE system interference, and achieve the effect of avoiding interference and improving user experience

Active Publication Date: 2017-08-04
GUANGDONG UNIV OF TECH
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Problems solved by technology

However, the LTE system adopts the same-frequency deployment method with a frequency reuse factor of 1, making inter-cell interference the main interference problem of the LTE system

Method used

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  • Inter-cell interference suppression method and system with fractional frequency reuse
  • Inter-cell interference suppression method and system with fractional frequency reuse
  • Inter-cell interference suppression method and system with fractional frequency reuse

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Embodiment Construction

[0051] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0052] Please refer to figure 1 , figure 1 It is a flowchart of a partial frequency reuse inter-cell interference suppression method provided by an embodiment of the present invention. The method can include:

[0053] Step 101: Obtain interference information of the central user; wherein, the interference information includes information o...

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Abstract

The invention discloses an inter-cell interference suppression method and system with fractional frequency reuse. The method comprises the following steps: acquiring interference information of a central user; sharing the interference information with adjacent base stations, and acquiring interface resource block information; and allocating resource blocks corresponding to the interface resource block information to partial edge users. According to the inter-cell interference suppression method with the fractional frequency reuse provided by the invention, by acquiring the interference information, the information that the central user in the cell served by the base station is interfered by a resource block allocated by the adjacent base stations to the central user can be obtained; through the sharing of the interface information, the interface resource block information can be acquired, and information of a resource block which interferes with the central users of the adjacent base stations allocated to the resource block of the central user of the served cell by the base station can be acquired; and by allocating resource blocks corresponding to the interference resource block information to partial edge users, resource blocks that interfere with the central users of the adjacent base stations can be allocated to the edge user of the base station, thereby avoiding the interference between the central users of adjacent cells of the adjacent base stations.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and system for suppressing inter-cell interference with partial frequency reuse. Background technique [0002] With the development of science and technology in modern society, cellular mobile communication system has been widely used in people's life as the main means of realizing mobile communication. Today, the interference in the cellular mobile communication system mainly includes intra-cell interference and inter-cell interference. Since the LTE (Long Term Evolution, long-term evolution) system adopts OFDM (Orthogonal Frequency Division Multiplexing, Orthogonal Frequency Division Multiplexing) technology, the interference in the cell is well controlled. However, the LTE system adopts the same-frequency deployment method with a frequency reuse factor of 1, which makes inter-cell interference a major interference problem in the LTE system. [0003] T...

Claims

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Application Information

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IPC IPC(8): H04W72/04H04W72/08H04J11/00
CPCH04J11/0059H04W72/27H04W72/51H04W72/541
Inventor 张广驰周绪龙崔苗林凡
Owner GUANGDONG UNIV OF TECH
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