Apparatus and method for controlling inter-cell interference

a technology of inter-cell interference and apparatus, which is applied in the field of apparatus and methods can solve the problems that no research has been conducted into an apparatus and method for controlling inter-cell interference in a multi-cell environment, and achieve the effects of improving communication performance, reducing interference, and improving communication and throughpu

Inactive Publication Date: 2016-03-03
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention is about controlling inter-cell interference to improve communication and throughput. It reduces the interference that affects user equipment located at the edge of a cell. The invention is particularly useful in systems where antennas are distributed in each cell. This results in improved communication performance.

Problems solved by technology

However, until now, no research has been conducted into an apparatus and method for controlling inter-cell interference in a multi-cell environment, to which the DAS is applied.

Method used

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  • Apparatus and method for controlling inter-cell interference
  • Apparatus and method for controlling inter-cell interference
  • Apparatus and method for controlling inter-cell interference

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Embodiment Construction

[0036]Hereinafter, the preferred embodiments of the present invention will be described with reference to the accompanying drawings. It is to be understood that the detailed description which will be disclosed with reference to the accompanying drawings is intended to describe the exemplary embodiments of the present invention, and is not intended to describe a unique embodiment through which the present invention can be carried out. Hereinafter, the detailed description includes detailed matters to provide full understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be carried out without the detailed matters. For example, the following description will be made on the assumption that a mobile communication system is a 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTF) system, but the present invention is applicable to other mobile communication systems excluding the unique matters of the 3GPP L...

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Abstract

An apparatus and method for controlling inter-cell interference is disclosed. The user equipment for controlling inter-cell interference in a wireless communication system includes an interference level measuring module configured to measure interference levels of neighboring cells using at least one of information about the number of antennas among antennas deployed in the neighboring cells, information about indexes of the effective antennas, and information about reference signal of the neighboring cells, an interference restriction request determination module configured to compare the interference levels of the neighboring cells with a predetermined threshold and to determine whether or not UE requests an interference restriction to the neighboring cells, and a transmitter configured to transmit information about one or more neighboring cells, to which the interference restriction request will be transmitted, to a serving base station.

Description

TECHNICAL FIELD[0001]The present invention relates to a wireless communication system, and more particularly, to an apparatus and method for controlling inter-cell interference.BACKGROUND ART[0002]A Distributed Antenna System (DAS) utilizes a plurality of distributed antennas connected to a single base station in a wired manner or through a dedicated line. The base station includes a plurality of antennas which is distributed and located in a cell for providing a service. The DAS is different from a Centralized Antenna System (CAS), in which a plurality of base station antennas is provided at the center of a cell, in that a plurality of antennas is distributed and located so as to be spaced apart from one another by a predetermined distance in a cell. The CAS is generally a cellular communication system such as a Wideband Code Division Multiple Access (WCDMA), High Speed Packet Access (HSPA), Long Term Evolution (LTE) / Long Term Evolution-Advanced (LTE-A) or 802.16 system, and utiliz...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H04L5/00H04W72/12
CPCH04B7/024H04J11/005H04L5/0058H04L5/0073H04W72/12H04W72/082H04B17/345H04L5/0032H04W72/0413H04W72/21H04W72/541H04W16/04
Inventor KOO, JA, HOCHUN, JIN, YOUNGKANG, JI, WONKIM, SU, NAMIHM, BIN, CHULPARK, SUNG, HO
Owner LG ELECTRONICS INC
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