KR20030058898A - Method for preventing interference of neighboring channel in wireless communication system - Google Patents

Method for preventing interference of neighboring channel in wireless communication system Download PDF

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Publication number
KR20030058898A
KR20030058898A KR1020020001310A KR20020001310A KR20030058898A KR 20030058898 A KR20030058898 A KR 20030058898A KR 1020020001310 A KR1020020001310 A KR 1020020001310A KR 20020001310 A KR20020001310 A KR 20020001310A KR 20030058898 A KR20030058898 A KR 20030058898A
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South Korea
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channel
specific
base station
interfered
band
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KR1020020001310A
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Korean (ko)
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이영만
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에스케이 텔레콤주식회사
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Priority to KR1020020001310A priority Critical patent/KR20030058898A/en
Publication of KR20030058898A publication Critical patent/KR20030058898A/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference

Abstract

PURPOSE: A method for preventing an interference of an adjacent channel of a wireless communication system is provided to normally connect a terminal and a base station by changing an access channel interfered by an adjacent channel to a different channel. CONSTITUTION: When a terminal is turned on by a user's key manipulation, it is connected to a base station through a specific channel(2). The base station judges whether a transmission band channel of the specific channel is interfered by a different channel(4). If the transmission band channel of the specific channel is interfered by the different channel, the base station shifts the transmission band channel of the specific channel to a channel of a different band(6). The base station judges whether a receiving band channel of the specific channel is interfered by a different channel(8). If the receiving band channel of the specific channel is interfered by the different channel, the base station shifts the receiving band channel of the specific channel to a channel of a different band(10).

Description

무선 통신 시스템의 인접 채널 간섭 방지 방법{METHOD FOR PREVENTING INTERFERENCE OF NEIGHBORING CHANNEL IN WIRELESS COMMUNICATION SYSTEM}Method of preventing adjacent channel interference in wireless communication system {METHOD FOR PREVENTING INTERFERENCE OF NEIGHBORING CHANNEL IN WIRELESS COMMUNICATION SYSTEM}

본 발명은 무선 통신 시스템(wireless communication system)의 인접 채널 간섭(interference of neighboring channel) 방지 방법에 관한 것으로, 특히, 단말기와 기지국간의 인접 채널 간섭을 방지하여 단말기가 기지국과 정상 접속하도록 하는 인접 채널 간섭 방지 방법에 관한 것이다.The present invention relates to a method for preventing interference of neighboring channels in a wireless communication system. In particular, the present invention relates to a method for preventing adjacent channel interference between a terminal and a base station so that the terminal can normally connect with the base station. It is about a prevention method.

종래 이동 통신 시스템에 있어서, 단말기와 기지국간 접속 채널이 인접 채널에 간섭을 받아 단말기가 기지국과 정상적으로 접속하기가 어려울 경우가 많았다. 또한, 단말기와 기지국이 접속한 경우에도 인접 채널의 영향으로 통화 품질이 불량해지는 경우가 많았다.In a conventional mobile communication system, it is often difficult for a terminal to normally connect with a base station because an access channel between a terminal and a base station is interfered with by an adjacent channel. In addition, even when a terminal and a base station are connected, call quality is often poor due to the influence of an adjacent channel.

본 발명은 상술한 문제점을 해결하기 위하여 안출한 것으로, 단말기와 기지국간 접속 채널이 인접 채널에 간섭을 받을 경우 상기 접속 채널을 다른 채널로 변경시켜 단말기가 기지국과 정상 접속하도록 하는 무선 통신 시스템의 인접 채널 간섭 방지 방법을 제공하는 데 그 목적이 있다.SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and when the access channel between the terminal and the base station is interfered with the adjacent channel, the adjacent channel of the wireless communication system changes the access channel to another channel so that the terminal normally connects with the base station. Its purpose is to provide a method for preventing channel interference.

이와 같은 목적을 달성하기 위한 본 발명은, 다수의 단말기와 각각의 채널을 통해 각기 접속하는 기지국을 구비한 무선 통신 시스템에서 인접 채널 간섭 방지 방법에 있어서, 상기 다수의 단말기 중 특정 단말기가 상기 기지국과 특정 채널을 통해 접속하는 제 1 단계; 상기 특정 채널의 송신 대역 채널이 다른 채널에 의해 간섭되고 있는지 여부를 판단하는 제 2 단계; 상기 특정 채널의 송신 대역 채널이 다른 채널에 의해 간섭되고 있고 있는 경우 상기 특정 채널의 송신 대역 채널을 다른 대역의 채널로 쉬프트(shift)시키는 제 3 단계; 상기 특정 채널의 수신 대역 채널이 다른 채널에 의해 간섭되고 있는지 여부를 판단하는 제 4 단계; 및 상기 특정 채널의 수신 대역 채널이 다른 채널에 의해 간섭되고 있고 있는 경우 상기 특정 채널의 수신 대역 채널을 다른 대역의 채널로 쉬프트시키는 제 5 단계를 포함하는 것을 특징으로 한다.In order to achieve the above object, the present invention provides a method for preventing adjacent channel interference in a wireless communication system including a plurality of terminals and base stations respectively connected through respective channels, wherein a specific terminal of the plurality of terminals is connected to the base station. A first step of connecting through a specific channel; A second step of determining whether a transmission band channel of the specific channel is interfered by another channel; Shifting a transmission band channel of the specific channel to a channel of another band when the transmission band channel of the specific channel is being interfered by another channel; A fourth step of determining whether a reception band channel of the specific channel is interfered by another channel; And a fifth step of shifting a reception band channel of the specific channel to a channel of another band when the reception band channel of the specific channel is being interfered with by another channel.

도 1은 본 발명에 따른 무선 통신 시스템의 인접 채널 간섭 방지 방법을 실시하기 위한 무선 통신 시스템의 일 실시예를 나타낸 블록도,1 is a block diagram showing an embodiment of a wireless communication system for implementing a method of preventing adjacent channel interference in a wireless communication system according to the present invention;

도 2는 본 발명에 따른 무선 통신 시스템의 인접 채널 간섭 방지 방법의 일 실시예를 단계별로 나타낸 순서도.Figure 2 is a flow chart showing step by step an embodiment of a method of preventing adjacent channel interference in a wireless communication system according to the present invention.

＜도면의 주요부분에 대한 부호의 설명＞<Description of the code | symbol about the principal part of drawing>

10 : 단말기 12 : 기지국10: terminal 12: base station

14 : 기지국 제어기 16 : 교환기14 base station controller 16 switchboard

도 1은 본 발명에 따른 무선 통신 시스템의 인접 채널 간섭 방지 방법을 실시하기 위한 무선 통신 시스템의 일 실시예를 나타낸 블록도로, 단말기(10), 기지국(12), 기지국 제어기(14), 및 교환기(16)로 구성된다.1 is a block diagram showing an embodiment of a wireless communication system for implementing a method of preventing adjacent channel interference in a wireless communication system according to the present invention. The terminal 10, the base station 12, the base station controller 14, and the exchanger are shown in FIG. It consists of (16).

동 도면에 있어서, 다수의 기지국 중에 예로, 특정 기지국(14)은 다수의 단말기 중에 예로, 특정 단말기(10)와 특정 채널을 통해 접속한다.In the figure, for example, among a plurality of base stations, the specific base station 14 is connected to, for example, a specific terminal 10 among a plurality of terminals through a specific channel.

다수의 기지국 제어기 중에 예로, 특정 기지국 제어기(14)는 상기 기지국(14)과 접속한다.For example, among a plurality of base station controllers, a specific base station controller 14 connects with the base station 14.

교환기(16)는 상기 기지국 제어기(14)와 접속하여 상기 다수의 단말기간에 교환 기능을 수행한다.The exchange 16 is connected to the base station controller 14 to perform an exchange function between the plurality of terminals.

본 발명을 도 2를 참조하여 설명하면 다음과 같다.Hereinafter, the present invention will be described with reference to FIG. 2.

도 2는 본 발명에 따른 무선 통신 시스템의 인접 채널 간섭 방지 방법의 일 실시예를 단계별로 나타낸 순서도이다.2 is a flowchart illustrating a step-by-step embodiment of a method for preventing adjacent channel interference in a wireless communication system according to the present invention.

먼저, 단말기(10)는 사용자의 키 조작 등에 의해 전원이 켜질 경우 기지국(12)과 특정 채널을 통해 접속한다(단계 2).First, the terminal 10 is connected to the base station 12 through a specific channel when the power is turned on by the user's key operation (step 2).

기지국(12)은 상기 특정 채널의 송신 대역 채널이 다른 채널에 의해 간섭되고 있는지 여부를 판단한다(단계 4).The base station 12 determines whether the transmission band channel of the specific channel is being interfered by another channel (step 4).

단계 4의 판단 결과, 특정 채널의 송신 대역 채널이 다른 채널에 의해 간섭되고 있고 있는 경우 상기 특정 채널의 송신 대역 채널을 다른 대역의 채널로 쉬프트시킨다(단계 6).As a result of the determination in step 4, when the transmission band channel of the specific channel is interfered by another channel, the transmission band channel of the specific channel is shifted to the channel of the other band (step 6).

다음, 기지국(12)은 상기 특정 채널의 수신 대역 채널이 다른 채널에 의해간섭되고 있는지 여부를 판단한다(단계 8).Next, the base station 12 determines whether the reception band channel of the specific channel is interfered by another channel (step 8).

단계 8의 판단 결과, 특정 채널의 수신 대역 채널이 다른 채널에 의해 간섭되고 있고 있는 경우 상기 특정 채널의 수신 대역 채널을 다른 대역의 채널로 쉬프트시킨다(단계 10).As a result of the determination in step 8, when the reception band channel of the specific channel is interfered by another channel, the reception band channel of the specific channel is shifted to the channel of the other band (step 10).

이상에서 설명한 바와 같이 본 발명은, 단말기와 기지국간 접속 채널이 인접 채널에 간섭을 받을 경우 상기 접속 채널을 다른 채널로 변경시켜 단말기가 기지국과 정상 접속하도록 한다. 따라서, 통화 품질이 향상되는 효과가 있다.As described above, in the present invention, when an access channel between a terminal and a base station is interfered with an adjacent channel, the access channel is changed to another channel so that the terminal normally connects with the base station. Therefore, the call quality is improved.

Claims (1)

다수의 단말기와 각각의 채널을 통해 각기 접속하는 기지국을 구비한 무선 통신 시스템에서 인접 채널 간섭 방지 방법에 있어서,In the wireless communication system having a base station connected to each terminal through a plurality of terminals and each channel, the adjacent channel interference prevention method, 상기 다수의 단말기 중 특정 단말기가 상기 기지국과 특정 채널을 통해 접속하는 제 1 단계;A first step of a specific terminal of the plurality of terminals accessing the base station through a specific channel; 상기 특정 채널의 송신 대역 채널이 다른 채널에 의해 간섭되고 있는지 여부를 판단하는 제 2 단계;A second step of determining whether a transmission band channel of the specific channel is interfered by another channel; 상기 특정 채널의 송신 대역 채널이 다른 채널에 의해 간섭되고 있고 있는 경우 상기 특정 채널의 송신 대역 채널을 다른 대역의 채널로 쉬프트시키는 제 3 단계;Shifting a transmission band channel of the specific channel to a channel of another band when the transmission band channel of the specific channel is being interfered by another channel; 상기 특정 채널의 수신 대역 채널이 다른 채널에 의해 간섭되고 있는지 여부를 판단하는 제 4 단계; 및A fourth step of determining whether a reception band channel of the specific channel is interfered by another channel; And 상기 특정 채널의 수신 대역 채널이 다른 채널에 의해 간섭되고 있고 있는 경우 상기 특정 채널의 수신 대역 채널을 다른 대역의 채널로 쉬프트시키는 제 5 단계를 포함하는 무선 통신 시스템의 인접 채널 간섭 방지 방법.And shifting a reception band channel of the specific channel to a channel of another band when the reception band channel of the specific channel is being interfered by another channel.
KR1020020001310A 2001-12-31 2001-12-31 Method for preventing interference of neighboring channel in wireless communication system KR20030058898A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100570825B1 (en) * 2004-09-30 2006-04-12 삼성전자주식회사 Apparatus and method for detecting the interference with neighboring bss in wireless lan system
KR100578346B1 (en) * 2004-10-06 2006-05-11 주식회사 케이티프리텔 Method for increasing frequency reuse coefficient using dedicated frequency and Apparatus thereof
KR101338408B1 (en) * 2007-09-10 2013-12-10 삼성전자주식회사 Method and equipment for inter channel interference decrease using reminder channel

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0785695A2 (en) * 1995-12-29 1997-07-23 AT&T Corp. System and method for managing neighbor-channel interference in channelized cellular systems
KR20020062001A (en) * 2001-01-19 2002-07-25 엘지이노텍 주식회사 Changing apparatus of frequency channel according to jammming signal and changing method of the same
KR100439449B1 (en) * 1995-12-29 2004-10-08 에이티 앤드 티 코포레이션 Systems and Methods for Handling Adjacent Channel Interference with Power Control and Induced Channel Assignment

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0785695A2 (en) * 1995-12-29 1997-07-23 AT&T Corp. System and method for managing neighbor-channel interference in channelized cellular systems
KR100411675B1 (en) * 1995-12-29 2004-04-13 에이티 앤드 티 코포레이션 Adjacent Channel Interference Management in Channelized Cellular Systems
KR100439449B1 (en) * 1995-12-29 2004-10-08 에이티 앤드 티 코포레이션 Systems and Methods for Handling Adjacent Channel Interference with Power Control and Induced Channel Assignment
KR20020062001A (en) * 2001-01-19 2002-07-25 엘지이노텍 주식회사 Changing apparatus of frequency channel according to jammming signal and changing method of the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100570825B1 (en) * 2004-09-30 2006-04-12 삼성전자주식회사 Apparatus and method for detecting the interference with neighboring bss in wireless lan system
KR100578346B1 (en) * 2004-10-06 2006-05-11 주식회사 케이티프리텔 Method for increasing frequency reuse coefficient using dedicated frequency and Apparatus thereof
KR101338408B1 (en) * 2007-09-10 2013-12-10 삼성전자주식회사 Method and equipment for inter channel interference decrease using reminder channel

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