TWI256262B - Wireless synchronous time divisional modem apparatus - Google Patents

Wireless synchronous time divisional modem apparatus

Info

Publication number
TWI256262B
TWI256262B TW092129404A TW92129404A TWI256262B TW I256262 B TWI256262 B TW I256262B TW 092129404 A TW092129404 A TW 092129404A TW 92129404 A TW92129404 A TW 92129404A TW I256262 B TWI256262 B TW I256262B
Authority
TW
Taiwan
Prior art keywords
communication
transmission period
received
modem apparatus
communication packet
Prior art date
Application number
TW092129404A
Other languages
English (en)
Other versions
TW200513127A (en
Inventor
Yasumasa Nonoyama
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of TW200513127A publication Critical patent/TW200513127A/zh
Application granted granted Critical
Publication of TWI256262B publication Critical patent/TWI256262B/zh

Links

Classifications

    • 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]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/18502—Airborne stations
    • H04B7/18506—Communications with or from aircraft, i.e. aeronautical mobile service
    • 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
    • H04B7/2662—Arrangements for Wireless System Synchronisation
    • H04B7/2671—Arrangements for Wireless Time-Division Multiple Access [TDMA] System Synchronisation
    • H04B7/2678—Time synchronisation
    • H04B7/2687—Inter base stations synchronisation
    • H04B7/2693—Centralised synchronisation, i.e. using external universal time reference, e.g. by using a global positioning system [GPS] or by distributing time reference over the wireline network
    • 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
    • H04B7/2662—Arrangements for Wireless System Synchronisation
    • H04B7/2671—Arrangements for Wireless Time-Division Multiple Access [TDMA] System Synchronisation
    • H04B7/2678—Time synchronisation
    • H04B7/2681—Synchronisation of a mobile station with one base station

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Time-Division Multiplex Systems (AREA)
TW092129404A 2003-09-30 2003-10-23 Wireless synchronous time divisional modem apparatus TWI256262B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2003/012544 WO2005034399A1 (ja) 2003-09-30 2003-09-30 時分割同期無線モデム装置

Publications (2)

Publication Number Publication Date
TW200513127A TW200513127A (en) 2005-04-01
TWI256262B true TWI256262B (en) 2006-06-01

Family

ID=34401441

Family Applications (1)

Application Number Title Priority Date Filing Date
TW092129404A TWI256262B (en) 2003-09-30 2003-10-23 Wireless synchronous time divisional modem apparatus

Country Status (8)

Country Link
US (1) US7693127B2 (zh)
JP (1) JP4246203B2 (zh)
CN (1) CN100566220C (zh)
AU (2) AU2003304454B1 (zh)
CA (1) CA2491900C (zh)
GB (1) GB2416464B (zh)
TW (1) TWI256262B (zh)
WO (1) WO2005034399A1 (zh)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8576829B2 (en) * 2006-08-08 2013-11-05 Aeroscout, Ltd. Multi-channel TDOA system
TW200849886A (en) * 2007-06-15 2008-12-16 D Link Corp Network device with display module
US7831259B2 (en) * 2007-06-22 2010-11-09 Cisco Technology, Inc. Sharing and tracking real-time location for mobile users
WO2010013493A1 (ja) * 2008-07-31 2010-02-04 三洋電機株式会社 報知方法およびアクセス制御装置
US8606508B2 (en) * 2012-02-09 2013-12-10 Flightaware, Llc System and method for sending air traffic data to users for display
US20140003024A1 (en) * 2012-06-29 2014-01-02 Airbus Operations Gmbh Modular mobile platform for use with commerical devices
US9298577B2 (en) * 2012-09-19 2016-03-29 Toyota Jidosha Kabushiki Kaisha Predicting bus idle time based on obtained usage data of a bus
WO2016053173A1 (en) 2014-10-03 2016-04-07 Telefonaktiebolaget Lm Ericsson (Publ) Measurement procedures for operation in unlicensed spectrum
CA3045091A1 (en) * 2016-11-29 2018-06-07 Enabler Ltd. Time synchronization system and transmission apparatus
US10362593B2 (en) * 2017-09-01 2019-07-23 Huawei Technologies Co., Ltd. Grant-free uplink transmission in unlicensed spectrum
US10892818B2 (en) * 2019-05-07 2021-01-12 Contec Co., Ltd. System, apparatus and method for managing satellite operation service

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3093243B2 (ja) * 1990-07-12 2000-10-03 株式会社東芝 移動無線通信システム
JPH08130774A (ja) * 1994-10-28 1996-05-21 Clarion Co Ltd データ伝送システム
JP3483017B2 (ja) * 1995-06-07 2004-01-06 日本電信電話株式会社 データ通信方法及びシステム
US6377548B1 (en) * 1997-10-14 2002-04-23 Lucent Technologies Inc. Method for admitting new connections based on measured quantities in a multiple access system for communications networks
US6862622B2 (en) * 1998-07-10 2005-03-01 Van Drebbel Mariner Llc Transmission control protocol/internet protocol (TCP/IP) packet-centric wireless point to multi-point (PTMP) transmission system architecture
KR20020079725A (ko) * 1999-09-01 2002-10-19 모토로라 인코포레이티드 경쟁-기반 예약을 갖는 다중 억세스 프로토콜들에서대역폭 할당을 위한 방법 및 디바이스
US6993007B2 (en) * 1999-10-27 2006-01-31 Broadcom Corporation System and method for suppressing silence in voice traffic over an asynchronous communication medium
JP4316749B2 (ja) * 1999-11-16 2009-08-19 株式会社日立コミュニケーションテクノロジー 無線同期方法
JP2003143056A (ja) * 2001-11-05 2003-05-16 Uniden Corp 無線端末及び基準局を持たない無線同期システム並びにプログラム

Also Published As

Publication number Publication date
TW200513127A (en) 2005-04-01
AU2003304646A1 (en) 2005-04-21
JP4246203B2 (ja) 2009-04-02
US7693127B2 (en) 2010-04-06
JPWO2005034399A1 (ja) 2006-12-14
WO2005034399A1 (ja) 2005-04-14
CN1685648A (zh) 2005-10-19
CA2491900A1 (en) 2005-03-30
CN100566220C (zh) 2009-12-02
AU2003304454B1 (en) 2007-10-18
CA2491900C (en) 2007-12-04
GB2416464A (en) 2006-01-25
GB0504872D0 (en) 2005-04-13
US20060165113A1 (en) 2006-07-27
GB2416464B (en) 2008-02-13

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Legal Events

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MM4A Annulment or lapse of patent due to non-payment of fees