ATE295633T1 - Erhöhte kapazität in einem ocdma system durch trennung zwischen frequenzen - Google Patents

Erhöhte kapazität in einem ocdma system durch trennung zwischen frequenzen

Info

Publication number
ATE295633T1
ATE295633T1 AT98965380T AT98965380T ATE295633T1 AT E295633 T1 ATE295633 T1 AT E295633T1 AT 98965380 T AT98965380 T AT 98965380T AT 98965380 T AT98965380 T AT 98965380T AT E295633 T1 ATE295633 T1 AT E295633T1
Authority
AT
Austria
Prior art keywords
frequencies
separation
increased capacity
ocdma system
system capacity
Prior art date
Application number
AT98965380T
Other languages
English (en)
Inventor
John Ohlson
Francis D Natali
Original Assignee
Alcatel Usa Sourcing Lp
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 Alcatel Usa Sourcing Lp filed Critical Alcatel Usa Sourcing Lp
Application granted granted Critical
Publication of ATE295633T1 publication Critical patent/ATE295633T1/de

Links

Classifications

    • 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
    • H04B7/204—Multiple access
    • H04B7/216—Code division or spread-spectrum multiple access [CDMA, SSMA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Relay Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Amplifiers (AREA)
  • Microwave Amplifiers (AREA)
  • Filters And Equalizers (AREA)
  • Stereo-Broadcasting Methods (AREA)
AT98965380T 1997-12-12 1998-12-10 Erhöhte kapazität in einem ocdma system durch trennung zwischen frequenzen ATE295633T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/989,466 US6317412B1 (en) 1997-12-12 1997-12-12 Increased capacity in an OCDMA system for frequency isolation
PCT/US1998/025713 WO1999031815A1 (en) 1997-12-12 1998-12-10 Increased capacity in an ocdma system for frequency isolation

Publications (1)

Publication Number Publication Date
ATE295633T1 true ATE295633T1 (de) 2005-05-15

Family

ID=25535135

Family Applications (1)

Application Number Title Priority Date Filing Date
AT98965380T ATE295633T1 (de) 1997-12-12 1998-12-10 Erhöhte kapazität in einem ocdma system durch trennung zwischen frequenzen

Country Status (7)

Country Link
US (1) US6317412B1 (de)
EP (1) EP1040590B1 (de)
AT (1) ATE295633T1 (de)
AU (1) AU2085899A (de)
CA (1) CA2310729A1 (de)
DE (1) DE69830195T2 (de)
WO (1) WO1999031815A1 (de)

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JP3116895B2 (ja) * 1998-03-30 2000-12-11 日本電気株式会社 Ｉｓ−９５基地局装置とｗ−ｃｄｍａ基地局装置および移動通信システムならびに周波数共用方法
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KR100383614B1 (ko) * 1998-10-19 2003-10-08 삼성전자주식회사 부호분할다중접속통신시스템의할당장치및방법
US6711120B1 (en) * 1999-03-11 2004-03-23 Flarion Technologies, Inc. Orthogonal frequency division multiplexing based spread spectrum multiple access
JP3399400B2 (ja) * 1999-04-15 2003-04-21 日本電気株式会社 周波数偏移復調回路
US6449304B1 (en) * 1999-05-14 2002-09-10 The Aerospace Corporation Method of determining the carrier reference phase of coherent demodulation of frequency hopped continuous phase modulated signals with synch words arbitrarily located within the hop
US6922388B1 (en) * 2000-02-11 2005-07-26 Lucent Technologies Inc. Signal construction, detection and estimation for uplink timing synchronization and access control in a multi-access wireless communication system
US6600921B1 (en) * 2000-02-16 2003-07-29 Hughes Electronics Corporation Dual coverage grid method
US6388615B1 (en) 2000-06-06 2002-05-14 Hughes Electronics Corporation Micro cell architecture for mobile user tracking communication system
US6756937B1 (en) 2000-06-06 2004-06-29 The Directv Group, Inc. Stratospheric platforms based mobile communications architecture
US7200360B1 (en) 2000-06-15 2007-04-03 The Directv Group, Inc. Communication system as a secondary platform with frequency reuse
US6859652B2 (en) 2000-08-02 2005-02-22 Mobile Satellite Ventures, Lp Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis
EP1316233B1 (de) 2000-08-02 2011-10-05 ATC Technologies, LLC Koordinierte Wiederverwendung von Frequenzen von einem irdischen System und einem Satellitensystem.
US6895217B1 (en) 2000-08-21 2005-05-17 The Directv Group, Inc. Stratospheric-based communication system for mobile users having adaptive interference rejection
US6868269B1 (en) 2000-08-28 2005-03-15 The Directv Group, Inc. Integrating coverage areas of multiple transponder platforms
US6941138B1 (en) 2000-09-05 2005-09-06 The Directv Group, Inc. Concurrent communications between a user terminal and multiple stratospheric transponder platforms
US7369847B1 (en) * 2000-09-14 2008-05-06 The Directv Group, Inc. Fixed cell communication system with reduced interference
US6763242B1 (en) 2000-09-14 2004-07-13 The Directv Group, Inc. Resource assignment system and method for determining the same
US6388634B1 (en) 2000-10-31 2002-05-14 Hughes Electronics Corporation Multi-beam antenna communication system and method
US6891813B2 (en) 2000-12-12 2005-05-10 The Directv Group, Inc. Dynamic cell CDMA code assignment system and method
US7227850B2 (en) * 2001-04-04 2007-06-05 Telefonaktiebolaget Lm Ericsson (Publ) Cellular radio communication system with frequency reuse
WO2003001696A2 (en) * 2001-06-21 2003-01-03 Flarion Technologies, Inc. Method of tone allocation for tone hopping sequences
US7890098B2 (en) 2001-09-14 2011-02-15 Atc Technologies, Llc Staggered sectorization for terrestrial reuse of satellite frequencies
US7218931B2 (en) * 2001-09-14 2007-05-15 Atc Technologies, Llc Satellite radiotelephone systems providing staggered sectorization for terrestrial reuse of satellite frequencies and related methods and radiotelephone systems
US7633895B2 (en) * 2002-06-24 2009-12-15 Qualcomm Incorporated Orthogonal code division multiple access on return link of satellite links
US8358971B2 (en) 2002-07-23 2013-01-22 Qualcomm Incorporated Satellite-based programmable allocation of bandwidth for forward and return links
US7379758B2 (en) * 2002-07-23 2008-05-27 Qualcomm Incorporated Satellite communication system constituted with primary and back-up multi-beam satellites
KR100524378B1 (ko) * 2002-11-20 2005-10-31 한국전자통신연구원 다중 빔 위성을 이용한 셀룰러 이동통신시스템에서의적응형 패킷 전송 방법
KR100461537B1 (ko) 2002-11-27 2004-12-17 한국전자통신연구원 다중빔 위성 통신 시스템의 순방향 링크에서의 패킷 전송장치 및 그 방법
JP2004191390A (ja) * 2002-12-06 2004-07-08 Seiko Epson Corp チップ内光インターコネクション回路、電気光学装置および電子機器
US7525934B2 (en) * 2003-09-24 2009-04-28 Qualcomm Incorporated Mixed reuse of feeder link and user link bandwidth
US7623867B2 (en) * 2005-07-29 2009-11-24 Atc Technologies, Llc Satellite communications apparatus and methods using asymmetrical forward and return link frequency reuse
US8923850B2 (en) 2006-04-13 2014-12-30 Atc Technologies, Llc Systems and methods for controlling base station sectors to reduce potential interference with low elevation satellites
WO2010148022A1 (en) 2009-06-16 2010-12-23 Viasat, Inc. Dynamic bandwidth resource allocation for satellite downlinks

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US5295153A (en) * 1992-04-13 1994-03-15 Telefonaktiebolaget L M Ericsson CDMA frequency allocation
US5448621A (en) * 1993-08-02 1995-09-05 Motorola, Inc. Dynamic reallocation of spectral capacity in cellular communication systems
US5491837A (en) * 1994-03-07 1996-02-13 Ericsson Inc. Method and system for channel allocation using power control and mobile-assisted handover measurements
US5745484A (en) * 1995-06-05 1998-04-28 Omnipoint Corporation Efficient communication system using time division multiplexing and timing adjustment control
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US5758090A (en) * 1995-09-22 1998-05-26 Airnet Communications, Inc. Frequency reuse planning for CDMA cellular communication system by grouping of available carrier frequencies and power control based on the distance from base station
US5764630A (en) * 1996-03-25 1998-06-09 Stanford Telecommunications, Inc. Forward link carrier recovery in an OCDMA spread spectrum communication system without a pilot tone
US5982758A (en) * 1997-02-13 1999-11-09 Hamdy; Walid M. Method and apparatus for merging neighbor lists in a CDMA mobile telephone system

Also Published As

Publication number Publication date
EP1040590B1 (de) 2005-05-11
DE69830195T2 (de) 2006-01-12
DE69830195D1 (de) 2005-06-16
WO1999031815A1 (en) 1999-06-24
CA2310729A1 (en) 1999-06-24
EP1040590A1 (de) 2000-10-04
AU2085899A (en) 1999-07-05
EP1040590A4 (de) 2004-03-31
US6317412B1 (en) 2001-11-13

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