JP2003509952A - 同一周波数帯域上に２つのｃｄｍａをオーバレイするための方法および装置 - Google Patents

同一周波数帯域上に２つのｃｄｍａをオーバレイするための方法および装置

Info

Publication number
JP2003509952A
JP2003509952A JP2001524274A JP2001524274A JP2003509952A JP 2003509952 A JP2003509952 A JP 2003509952A JP 2001524274 A JP2001524274 A JP 2001524274A JP 2001524274 A JP2001524274 A JP 2001524274A JP 2003509952 A JP2003509952 A JP 2003509952A
Authority
JP
Japan
Prior art keywords
signal
cdma
channelization
signals
timing
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP2001524274A
Other languages
English (en)
Japanese (ja)
Other versions
JP2003509952A5 (enExample
Inventor
ティードマン、エドワード・ジー・ジュニア
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qualcomm Inc
Original Assignee
Qualcomm Inc
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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of JP2003509952A publication Critical patent/JP2003509952A/ja
Publication of JP2003509952A5 publication Critical patent/JP2003509952A5/ja
Pending legal-status Critical Current

Links

Classifications

    • 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
    • H04B1/7073—Synchronisation aspects
    • H04B1/7075—Synchronisation aspects with code phase acquisition
    • 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
    • H04B7/2696—Over the air autonomous synchronisation, e.g. by monitoring network activity
    • 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
    • H04B7/2668—Arrangements for Wireless Code-Division Multiple Access [CDMA] System Synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/004—Orthogonal

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
JP2001524274A 1999-09-13 2000-09-12 同一周波数帯域上に２つのｃｄｍａをオーバレイするための方法および装置 Pending JP2003509952A (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/395,300 1999-09-13
US09/395,300 US6882631B1 (en) 1999-09-13 1999-09-13 Method and apparatus for overlaying two CDMA systems on the same frequency bandwidth
PCT/US2000/024956 WO2001020817A1 (en) 1999-09-13 2000-09-12 Method and apparatus for overlaying two cdma systems on the same frequency bandwidth

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2010211211A Division JP2011082972A (ja) 1999-09-13 2010-09-21 同一周波数帯域上に２つのｃｄｍａをオーバレイするための方法および装置

Publications (2)

Publication Number Publication Date
JP2003509952A true JP2003509952A (ja) 2003-03-11
JP2003509952A5 JP2003509952A5 (enExample) 2007-11-08

Family

ID=23562471

Family Applications (2)

Application Number Title Priority Date Filing Date
JP2001524274A Pending JP2003509952A (ja) 1999-09-13 2000-09-12 同一周波数帯域上に２つのｃｄｍａをオーバレイするための方法および装置
JP2010211211A Pending JP2011082972A (ja) 1999-09-13 2010-09-21 同一周波数帯域上に２つのｃｄｍａをオーバレイするための方法および装置

Family Applications After (1)

Application Number Title Priority Date Filing Date
JP2010211211A Pending JP2011082972A (ja) 1999-09-13 2010-09-21 同一周波数帯域上に２つのｃｄｍａをオーバレイするための方法および装置

Country Status (10)

Country Link
US (3) US6882631B1 (enExample)
EP (1) EP1212851A1 (enExample)
JP (2) JP2003509952A (enExample)
KR (1) KR100760479B1 (enExample)
CN (1) CN1168232C (enExample)
AU (1) AU7372400A (enExample)
BR (1) BR0013934A (enExample)
HK (1) HK1047659B (enExample)
TW (1) TWI239153B (enExample)
WO (1) WO2001020817A1 (enExample)

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US7061398B2 (en) * 1999-08-16 2006-06-13 Bs&B Safety Systems Limited Two-way wide area telemetry
US6882631B1 (en) * 1999-09-13 2005-04-19 Qualcomm Incorporated Method and apparatus for overlaying two CDMA systems on the same frequency bandwidth
US6314126B1 (en) * 2001-01-12 2001-11-06 Linex Technologies, Inc. Spread-spectrum handoff and source congestion avoidance system and method
US8605686B2 (en) * 2001-02-12 2013-12-10 Qualcomm Incorporated Method and apparatus for power control in a wireless communication system
US20040137416A1 (en) * 2002-04-05 2004-07-15 Yue Ma System and method using adaptive learning components to enhance target advertising and customize system behavior
US8194703B2 (en) 2002-08-07 2012-06-05 Kyocera Corporation Wireless communication system
US8364185B2 (en) * 2005-04-18 2013-01-29 Samsung Electronics Co., Ltd. Method and system for synchronizing a clock for an adjacent network to a clock for an overlay network
KR100830163B1 (ko) * 2005-04-20 2008-05-20 삼성전자주식회사 주파수 오버레이 통신 시스템에서 신호 송수신 장치 및 방법
US7933561B2 (en) * 2006-12-11 2011-04-26 Apple Inc. Wireless communications circuitry with simultaneous receive capabilities for handheld electronic devices
JP4606405B2 (ja) * 2006-12-18 2011-01-05 京セラ株式会社 無線通信システムの制御方法、基地局の制御方法、無線通信端末の制御方法
US8325856B2 (en) 2007-03-05 2012-12-04 Qualcomm Incorporated Coherent initial acquisition
US7818029B2 (en) * 2007-04-11 2010-10-19 Apple Inc. Wireless communications circuitry with antenna sharing capabilities for handheld electronic devices
FI20085423A0 (fi) * 2008-05-08 2008-05-08 Nokia Siemens Networks Oy Synkronointi matkaviestinjärjestelmässä
WO2010087665A2 (en) * 2009-02-02 2010-08-05 Lg Electronics Inc. Method and apparatus for transmitting data performed by at least one base sation in wireless communication system
US8219157B2 (en) * 2009-03-26 2012-07-10 Apple Inc. Electronic device with shared multiband antenna and antenna diversity circuitry
US8208867B2 (en) * 2009-04-09 2012-06-26 Apple Inc. Shared multiband antennas and antenna diversity circuitry for electronic devices
CN107615682B (zh) * 2015-06-25 2020-02-14 华为技术有限公司 一种相位同步的方法及装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09139712A (ja) * 1995-08-31 1997-05-27 Nokia Telecommun Oy 無線送信器の送信電力を制御する方法
WO1998024199A2 (en) * 1996-11-26 1998-06-04 Nokia Telecommunications Oy Method for load control, and radio system
WO1999004525A1 (en) * 1997-07-17 1999-01-28 Northern Telecom Limited Cdma direct spread overlay system and method of operation

Family Cites Families (19)

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US5224120A (en) 1990-12-05 1993-06-29 Interdigital Technology Corporation Dynamic capacity allocation CDMA spread spectrum communications
GB2267627B (en) 1992-05-27 1996-01-03 Roke Manor Research Improvements in or relating to radio communication systems
WO1994030024A1 (en) 1993-06-14 1994-12-22 Telefonaktiebolaget Lm Ericsson Time alignment of transmission in a down-link of a cdma system
US5446727A (en) * 1993-11-30 1995-08-29 Motorola Inc. Method and apparatus for time aligning signals for reception in a code-division multiple access communication system
JPH0823568A (ja) 1994-07-08 1996-01-23 Nec Corp 無線フレーム同期方式
US5577031A (en) * 1995-03-22 1996-11-19 Smith; Jeffrey W. Wideband channelizer incorporating diversity switch
JP2785789B2 (ja) * 1996-02-09 1998-08-13 日本電気株式会社 ディジタル移動通信システム
FI961362A7 (fi) * 1996-03-25 1997-09-26 Nokia Telecommunications Oy Häiriöiden vähentämismenetelmä ja radiojärjestelmä
JPH1013918A (ja) * 1996-06-19 1998-01-16 Toshiba Corp 符号分割多元接続方式を採用した移動通信システムとその無線通信装置
US5907577A (en) * 1997-02-06 1999-05-25 At&T Wireless Services Delay compensation
US6539050B1 (en) * 1997-06-26 2003-03-25 Hughes Electronics Corporation Method for transmitting wideband signals via a communication system adapted for narrow-band signal transmission
US6510147B1 (en) * 1997-07-15 2003-01-21 Hughes Electronics Corporation Method and apparatus for orthogonally overlaying variable chip rate spread spectrum signals
US6307840B1 (en) * 1997-09-19 2001-10-23 Qualcomm Incorporated Mobile station assisted timing synchronization in CDMA communication system
US5960347A (en) * 1997-10-09 1999-09-28 Interdigital Technology Corporation Seamless handoff system and method
BR9813026A (pt) * 1997-10-10 2000-08-15 Qualcomm Inc Espalhamento de código pn em múltiplas camadas em um sistema de comunicações de múltiplos usuários
US6208871B1 (en) * 1998-02-27 2001-03-27 Motorola, Inc. Method and apparatus for providing a time adjustment to a wireless communication system
US6490314B1 (en) * 1998-09-23 2002-12-03 Ericsson Inc. Method for overlay of narrowband and wideband communication systems
US6747956B1 (en) * 1999-07-30 2004-06-08 Lucent Technologies Inc. Method for measurement of receive antenna return loss in a CDMA radio system
US6882631B1 (en) * 1999-09-13 2005-04-19 Qualcomm Incorporated Method and apparatus for overlaying two CDMA systems on the same frequency bandwidth

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09139712A (ja) * 1995-08-31 1997-05-27 Nokia Telecommun Oy 無線送信器の送信電力を制御する方法
WO1998024199A2 (en) * 1996-11-26 1998-06-04 Nokia Telecommunications Oy Method for load control, and radio system
WO1999004525A1 (en) * 1997-07-17 1999-01-28 Northern Telecom Limited Cdma direct spread overlay system and method of operation

Also Published As

Publication number Publication date
TWI239153B (en) 2005-09-01
US7397780B2 (en) 2008-07-08
AU7372400A (en) 2001-04-17
US7212508B2 (en) 2007-05-01
KR20020030819A (ko) 2002-04-25
HK1047659B (zh) 2005-05-13
US20050122917A1 (en) 2005-06-09
US20070147293A1 (en) 2007-06-28
EP1212851A1 (en) 2002-06-12
US6882631B1 (en) 2005-04-19
KR100760479B1 (ko) 2007-09-20
JP2011082972A (ja) 2011-04-21
WO2001020817A1 (en) 2001-03-22
CN1168232C (zh) 2004-09-22
CN1373947A (zh) 2002-10-09
HK1047659A1 (en) 2003-02-28
BR0013934A (pt) 2002-07-02

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