JP3859944B2 - ワイヤレス通信システムにおいて受信した位相変調信号を処理する方法及び装置 - Google Patents

ワイヤレス通信システムにおいて受信した位相変調信号を処理する方法及び装置 Download PDF

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Publication number
JP3859944B2
JP3859944B2 JP2000224391A JP2000224391A JP3859944B2 JP 3859944 B2 JP3859944 B2 JP 3859944B2 JP 2000224391 A JP2000224391 A JP 2000224391A JP 2000224391 A JP2000224391 A JP 2000224391A JP 3859944 B2 JP3859944 B2 JP 3859944B2
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Prior art keywords
phase
time
signal
copy
modulated signal
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Expired - Lifetime
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JP2000224391A
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Japanese (ja)
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JP2001086181A (ja
JP2001086181A5 (https=
Inventor
ゴーデン アレクサンダー
ツァイ シェン−ジェン
マツセビッチ アレックス
マイケル トビアス ジョナサン
チェンリン ワン ロバート
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ルーセント テクノロジーズ インコーポレーテッド
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Publication of JP2001086181A5 publication Critical patent/JP2001086181A5/ja
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    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/10—Position of receiver fixed by co-ordinating a plurality of position lines defined by path-difference measurements, e.g. omega or decca systems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
    • G01S1/04—Details
    • G01S1/045—Receivers

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
JP2000224391A 1999-07-26 2000-07-25 ワイヤレス通信システムにおいて受信した位相変調信号を処理する方法及び装置 Expired - Lifetime JP3859944B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/360574 1999-07-26
US09/360,574 US6567486B1 (en) 1999-07-26 1999-07-26 Apparatus and method for finding location of a mobile unit

Publications (3)

Publication Number Publication Date
JP2001086181A JP2001086181A (ja) 2001-03-30
JP2001086181A5 JP2001086181A5 (https=) 2004-10-14
JP3859944B2 true JP3859944B2 (ja) 2006-12-20

Family

ID=23418587

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000224391A Expired - Lifetime JP3859944B2 (ja) 1999-07-26 2000-07-25 ワイヤレス通信システムにおいて受信した位相変調信号を処理する方法及び装置

Country Status (8)

Country Link
US (1) US6567486B1 (https=)
EP (1) EP1072900A3 (https=)
JP (1) JP3859944B2 (https=)
KR (1) KR100636643B1 (https=)
CN (1) CN1283018A (https=)
AU (1) AU4869800A (https=)
BR (1) BR0003015A (https=)
CA (1) CA2313814A1 (https=)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6567486B1 (en) * 1999-07-26 2003-05-20 Lucent Technologies Inc. Apparatus and method for finding location of a mobile unit
JP4232355B2 (ja) * 2001-06-11 2009-03-04 株式会社日立製作所 分散システムにおけるサービス提供方法
US7187736B2 (en) * 2003-02-13 2007-03-06 Motorola Inc. Reducing interference in a GSM communication system
US7636061B1 (en) 2005-04-21 2009-12-22 Alan Thomas Method and apparatus for location determination of people or objects
US7949032B1 (en) * 2005-05-16 2011-05-24 Frost Edward G Methods and apparatus for masking and securing communications transmissions
US7706328B2 (en) * 2006-01-04 2010-04-27 Qualcomm Incorporated Methods and apparatus for position location in a wireless network
US8165064B2 (en) 2008-01-28 2012-04-24 Qualcomm Incorporated Enhancements to the positioning pilot channel
US9002354B2 (en) * 2009-06-12 2015-04-07 Google Technology Holdings, LLC Interference control, SINR optimization and signaling enhancements to improve the performance of OTDOA measurements
US20140266609A1 (en) * 2013-03-15 2014-09-18 Microchip Technology Incorporated System and Method for Locating Wireless Nodes

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2226790B1 (https=) * 1973-04-19 1977-08-19 Lannionnais Electronique
US5276712A (en) * 1989-11-16 1994-01-04 Digital Equipment Corporation Method and apparatus for clock recovery in digital communication systems
US5579345A (en) * 1994-10-13 1996-11-26 Westinghouse Electric Corporation Carrier tracking loop for QPSK demodulator
US5802113A (en) * 1995-10-25 1998-09-01 Philips Electronics North America Corporation Clock signal recovery system for communication systems using quadrature amplitude modulation
US5890068A (en) * 1996-10-03 1999-03-30 Cell-Loc Inc. Wireless location system
US6665356B1 (en) * 1999-06-10 2003-12-16 Agere Systems Inc. Sample timing control for demodulation of phase-modulated signals
US6567486B1 (en) * 1999-07-26 2003-05-20 Lucent Technologies Inc. Apparatus and method for finding location of a mobile unit

Also Published As

Publication number Publication date
KR100636643B1 (ko) 2006-10-20
EP1072900A2 (en) 2001-01-31
JP2001086181A (ja) 2001-03-30
CN1283018A (zh) 2001-02-07
BR0003015A (pt) 2001-03-13
US6567486B1 (en) 2003-05-20
EP1072900A3 (en) 2003-10-08
CA2313814A1 (en) 2001-01-26
AU4869800A (en) 2001-02-01
KR20010021118A (ko) 2001-03-15

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