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KR920003685A - 무선통신방식 - Google Patents

무선통신방식 Download PDF

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Publication number
KR920003685A
KR920003685A KR1019910011758A KR910011758A KR920003685A KR 920003685 A KR920003685 A KR 920003685A KR 1019910011758 A KR1019910011758 A KR 1019910011758A KR 910011758 A KR910011758 A KR 910011758A KR 920003685 A KR920003685 A KR 920003685A
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KR
South Korea
Prior art keywords
timing
timing shift
base stations
detection means
shift detection
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Application number
KR1019910011758A
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English (en)
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KR950000359B1 (ko
Inventor
유우지 우메모또
고오이찌 이또
마사유끼 다나까
Original Assignee
아오이 죠이찌
가부시끼가이샤 도시바
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Publication of KR920003685A publication Critical patent/KR920003685A/ko
Application granted granted Critical
Publication of KR950000359B1 publication Critical patent/KR950000359B1/ko
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/14—Spectrum sharing arrangements between different networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2643—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA]
    • H04B7/2656—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA] for structure of frame, burst
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/0055—Synchronisation arrangements determining timing error of reception due to propagation delay
    • H04W56/0065—Synchronisation arrangements determining timing error of reception due to propagation delay using measurement of signal travel time
    • H04W56/007—Open loop measurement
    • H04W56/0075—Open loop measurement based on arrival time vs. expected arrival time
    • H04W56/008—Open loop measurement based on arrival time vs. expected arrival time detecting arrival of signal based on received raw signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/0055—Synchronisation arrangements determining timing error of reception due to propagation delay
    • H04W56/0065—Synchronisation arrangements determining timing error of reception due to propagation delay using measurement of signal travel time
    • H04W56/007—Open loop measurement
    • H04W56/0075—Open loop measurement based on arrival time vs. expected arrival time
    • H04W56/0085—Open loop measurement based on arrival time vs. expected arrival time detecting a given structure in the signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/04—Scheduled access

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

내용 없음

Description

무선통신방식
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 동방식을 적용시킨 휴대전화시스템의 개략구성도.
제2도는 동시스템의 이동국의 구성을 나타낸 회로블록도.
제3도는 동시스템의 기지국의 구성을 나타낸 회로블록도.

Claims (3)

  1. 서로 비동기인 복수의 기지국(BSS1, BSS2......)과 이들의 기지국에 대해서 무선 회선을 거쳐서 접속되는 복수의 이동국(PSS1, PSS2,......)을 구비한 시스템에 있어서, 이들 기지국 및 이동국에 복수의 무선 주파수를 공유하게 하고 또한 이들 무선 주파수에 의한 전송신호를 복수의 타임 슬롯을 시분할 다중화한 타임프레임 구성으로 하는 동시에 상기 각 타임슬롯간에 타이밍 엇갈림 검출용 기간을 설비하고 상기 기지국 및 이동국의 적어도 한쪽에 상기 타이밍 엇갈림 검출용 기간의 수신상태에서 타임슬롯의 타이밍 엇갈림을 검출하기 위한 타이밍 엇갈림 검출수단(31a)과 이 타이밍 엇갈림 검출수단에 의해서 타이밍 엇갈림이 검출된 경우에 해당하는 타임슬롯의 타이밍을 수정하기 위한 타이밍 수정수단(31b)을 구비한 것을 특징으로 하는 무선통신방식.
  2. 제1항에 있어서, 상기 타이밍 엇갈림 검출용 기간을 복수의 소기간으로 분할하고 상기 타이밍 엇갈림 검출수단은 이들 소긴간마다의 수신상태에서 간섭의 발생 및 간섭의 상태를 각각 검출하고, 상기 타이밍 수정수단은 타이밍 엇갈림 검출 수단에 의해서 타이밍 엇갈림이 검출된 경우에 해당하는 타임슬롯의 타이밍을 상기 타이밍 엇갈림 상태의 검출결과에 따라서 수정하는 것을 특징으로 하는 무선 통신방식.
  3. 서로 비동기인 복수의 기지국(PSS1, PSS2,......)과 이들 기지국에 대해서 무선회선을 거쳐서 접속되는 복수의 이동국(PSS1, PSS2,......)를 구비한 시스템에 있어서, 이들 기지국 및 이동국에 복수의 무선 주파수를 공유하게 하고 또한 이들 무선 주파수에 의한 전송신호를 복수의 타임슬롯을 시분할 다중화한 타임프레임 구성으로 하는 동시에 상기 각 타임슬롯간에 타이밍 엇가릴 검출용 기간을 설비하고, 상기 기지국 및 이동국의 적어도 한쪽에 상기 타이밍 엇갈림 검출용 기간의 수신상태에서 타임슬롯의 타이밍 엇갈림의 발생 및 타이밍 엇갈림의 상태를 각각 검출하기 위한 타이밍 엇갈림 검출수단(31a)과, 타이밍 엇갈림 검출수단에 의해서 타이밍 엇갈림의 발생이 검출된 경우애 상기 타이밍 엇갈림 상태의 검출결과로 타임슬롯의 타이밍 수정이 가능한지의 여부를 판정하기 위한 판정수단(8c)과, 이 판정수단에 의해서 타이밍 수정이 가능하다고 판정된 경우에 해당하는 타임슬롯의 타이밍을 수정하기 위한 타이밍수정수단(31b)과, 상기 판정수단에 의해서 타이밍 수정이 불가능하다고 판정된 경우에 타임슬롯의 변경을 행하는 채널변경수단(31c)을 구비한 것을 특징으로 하는 무선통신 방식.
    ※참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019910011758A 1990-07-12 1991-07-11 무선통신시스템 Expired - Fee Related KR950000359B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2-184613 1990-07-12
JP2184613A JP3034282B2 (ja) 1990-07-12 1990-07-12 非同期型移動無線通信システム

Publications (2)

Publication Number Publication Date
KR920003685A true KR920003685A (ko) 1992-02-29
KR950000359B1 KR950000359B1 (ko) 1995-01-13

Family

ID=16156287

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910011758A Expired - Fee Related KR950000359B1 (ko) 1990-07-12 1991-07-11 무선통신시스템

Country Status (3)

Country Link
US (1) US5430731A (ko)
JP (1) JP3034282B2 (ko)
KR (1) KR950000359B1 (ko)

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JPH0494228A (ja) * 1990-08-09 1992-03-26 Matsushita Electric Ind Co Ltd ダイナミックチャネル割当方法
JP2600622B2 (ja) * 1994-09-22 1997-04-16 日本電気株式会社 Ｔｄｍａ方式の移動通信システムにおける下り制御信号の送信制御方法
JP3134040B2 (ja) * 1995-05-25 2001-02-13 三菱電機株式会社 時分割多重通信制御方法
US5844894A (en) * 1996-02-29 1998-12-01 Ericsson Inc. Time-reuse partitioning system and methods for cellular radio telephone systems
US5862132A (en) * 1996-04-22 1999-01-19 Motorola, Inc. System and method for multiple access short message communications
EP0812073B1 (en) * 1996-06-04 1999-09-08 Texas Instruments Incorporated Improvements in or relating to telecommunication systems
US8526971B2 (en) * 1996-08-15 2013-09-03 Snaptrack, Inc. Method and apparatus for providing position-related information to mobile recipients
US6061561A (en) * 1996-10-11 2000-05-09 Nokia Mobile Phones Limited Cellular communication system providing cell transmitter location information
GB2320650B (en) * 1996-12-23 2001-09-26 Ericsson Telefon Ab L M Telecommunications systems
EP0881785A1 (en) * 1997-05-29 1998-12-02 Alcatel Telecommunication system, radio system, and method
US6690941B1 (en) * 1999-10-15 2004-02-10 Agere Systems Inc. Adaptive digital RF communication in a cordless telephone
US6980533B1 (en) * 2000-04-19 2005-12-27 Lucent Technologies Inc. Load balancing technique for a wireless internet access system
US6944460B2 (en) * 2001-06-07 2005-09-13 Telefonaktiebolaget L M Ericsson (Publ) System and method for link adaptation in communication systems
KR100422711B1 (ko) * 2001-11-20 2004-03-16 엘지전자 주식회사 타 기지국간 주파수 정보 공유방법
JP2004208155A (ja) * 2002-12-26 2004-07-22 Hitachi Kokusai Electric Inc 復調方式
US7286844B1 (en) * 2003-01-31 2007-10-23 Bbn Technologies Corp. Systems and methods for three dimensional antenna selection and power control in an Ad-Hoc wireless network
US7542437B1 (en) 2003-10-02 2009-06-02 Bbn Technologies Corp. Systems and methods for conserving energy in a communications network
JP4178096B2 (ja) * 2003-11-12 2008-11-12 京セラ株式会社 無線基地局
US7551892B1 (en) 2004-02-26 2009-06-23 Bbn Technologies Corp Low-power ad hoc network entry
US8145201B2 (en) 2004-12-17 2012-03-27 Raytheon Bbn Technologies Corp. Methods and apparatus for reduced energy communication in an ad hoc network
US7438948B2 (en) * 2005-03-21 2008-10-21 Ppg Industries Ohio, Inc. Method for coating a substrate with an undercoating and a functional coating
US7508304B2 (en) * 2005-07-06 2009-03-24 The Penn State Research Foundation Networked multiband waveguide intrusion detection and localization sensor
WO2008027310A2 (en) * 2006-08-25 2008-03-06 Bbn Technologies Corp. Systems and methods for energy-conscious communication in wireless ad-hoc networks
US8149716B2 (en) * 2007-08-20 2012-04-03 Raytheon Bbn Technologies Corp. Systems and methods for adaptive routing in mobile ad-hoc networks and disruption tolerant networks
CN101296049B (zh) * 2008-06-19 2013-03-27 中兴通讯股份有限公司 时分复用系统中消除时隙漂移故障的方法及系统

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FR2502426A1 (fr) * 1981-03-20 1982-09-24 Trt Telecom Radio Electr Systeme de transmission d'informations entre une station principale et des stations secondaires operant selon un procede amrt
JPS62147822A (ja) * 1985-12-23 1987-07-01 Nec Corp 時分割多元接続通信装置
JPH0618337B2 (ja) * 1988-02-23 1994-03-09 日本電気株式会社 衛星通信方式

Also Published As

Publication number Publication date
JPH0472827A (ja) 1992-03-06
US5430731A (en) 1995-07-04
JP3034282B2 (ja) 2000-04-17
KR950000359B1 (ko) 1995-01-13

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