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Frequency reuse method in an orthogonal frequency division multiplex mobile communication system

An orthogonal frequency division and frequency reuse technology, which is applied in the field of frequency reuse and can solve the problems of limiting the number of users or the data rate by the number of available channels.

Inactive Publication Date: 2004-06-09
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] (3) OFDM modulation wave is almost random noise
Therefore, the reduction in the number of available channels limits the number of users or data rates available

Method used

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  • Frequency reuse method in an orthogonal frequency division multiplex mobile communication system
  • Frequency reuse method in an orthogonal frequency division multiplex mobile communication system
  • Frequency reuse method in an orthogonal frequency division multiplex mobile communication system

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Embodiment Construction

[0037] Here, preferred embodiments of the present invention will be described below with reference to the accompanying drawings. In the following description, well-known functions or structures are not described in detail since they would obscure the essential content of the present invention.

[0038] Although in the following description of the present invention, frequency reuse is realized by using two frequency reuse distances of 1 and 3, it can be realized that the number of frequency reuse distances is not limited. In fact, the OFDM frequency reuse distance can be 3, 4, 7, ... In addition, although the hexagonal cell is virtual, and this shape cannot be produced in reality, that is, each BS has different cell coverage shape, but an ideal hexagonal cell shape is assumed here.

[0039] figure 2 Describes a frequency reuse scheme according to an embodiment of the present invention in an OFDM mobile communication system;

[0040] see figure 2, in order to obtain two fr...

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Abstract

A frequency reuse method in an OFDM mobile communication system is provided. Frequency resources available to each BS are divided into at least four frequency groups and a different or the same frequency reuse distance is set for each of the frequency groups. The frequency groups are sequentially assigned to cell areas of each BS such that lower frequency groups are available to a near cell area and higher frequency resource groups are available to a remote cell area.

Description

[0001] This application claims priority based on 35 U.S.C § 119 filed at the Korean Industrial Intellectual Property Office on November 7, 2002 entitled "Method for Frequency Reuse in Orthogonal Frequency Division Multiplexing Mobile Communication System" and assigned serial number 2002- 68830, and application No. 2003-75845 filed on October 23, 2002 at the Korean Industrial Intellectual Property Office, entitled "Method for Frequency Reuse in Orthogonal Frequency Division Multiplexing Mobile Communication System", are hereby incorporated The contents of both are for reference. technical field [0002] The present invention generally relates to a method for frequency reuse in a mobile communication system, and in particular, relates to a method for frequency reuse in an Orthogonal Frequency Division Multiplexing (OFDM) mobile communication system. Background technique [0003] Mobile communication systems are designed to provide voice services, ensuring flexibility for users...

Claims

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Application Information

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IPC IPC(8): H04J11/00H04L5/02H04W16/02H04W16/12H04W16/30H04W28/26
CPCH04W28/26H04W16/02H04L5/023H04W16/12
Inventor 黄讚洙金基镐金泳秀朴元亨尹相普
Owner SAMSUNG ELECTRONICS CO LTD
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