CA2313814A1 - Apparatus and method for finding location of a mobile unit - Google Patents
Apparatus and method for finding location of a mobile unit Download PDFInfo
- Publication number
- CA2313814A1 CA2313814A1 CA002313814A CA2313814A CA2313814A1 CA 2313814 A1 CA2313814 A1 CA 2313814A1 CA 002313814 A CA002313814 A CA 002313814A CA 2313814 A CA2313814 A CA 2313814A CA 2313814 A1 CA2313814 A1 CA 2313814A1
- Authority
- CA
- Canada
- Prior art keywords
- signal
- phase
- frequency
- measure
- communication system
- 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.)
- Abandoned
Links
- 238000000034 method Methods 0.000 title claims description 18
- 238000004891 communication Methods 0.000 claims abstract description 16
- 230000007704 transition Effects 0.000 claims abstract description 14
- 239000004165 Methyl ester of fatty acids Substances 0.000 description 4
- 230000010363 phase shift Effects 0.000 description 4
- 238000005070 sampling Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- VJYFKVYYMZPMAB-UHFFFAOYSA-N ethoprophos Chemical group CCCSP(=O)(OCC)SCCC VJYFKVYYMZPMAB-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035755 proliferation Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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
-
- 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
Landscapes
- 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)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/360,574 US6567486B1 (en) | 1999-07-26 | 1999-07-26 | Apparatus and method for finding location of a mobile unit |
| US09/360,574 | 1999-07-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2313814A1 true CA2313814A1 (en) | 2001-01-26 |
Family
ID=23418587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002313814A Abandoned CA2313814A1 (en) | 1999-07-26 | 2000-07-12 | Apparatus and method for finding location of a mobile unit |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US6567486B1 (enExample) |
| EP (1) | EP1072900A3 (enExample) |
| JP (1) | JP3859944B2 (enExample) |
| KR (1) | KR100636643B1 (enExample) |
| CN (1) | CN1283018A (enExample) |
| AU (1) | AU4869800A (enExample) |
| BR (1) | BR0003015A (enExample) |
| CA (1) | CA2313814A1 (enExample) |
Families Citing this family (9)
| 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)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2226790B1 (enExample) * | 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 |
-
1999
- 1999-07-26 US US09/360,574 patent/US6567486B1/en not_active Expired - Lifetime
-
2000
- 2000-07-12 CA CA002313814A patent/CA2313814A1/en not_active Abandoned
- 2000-07-17 EP EP00306080A patent/EP1072900A3/en not_active Withdrawn
- 2000-07-19 AU AU48698/00A patent/AU4869800A/en not_active Abandoned
- 2000-07-20 BR BR0003015-5A patent/BR0003015A/pt not_active Application Discontinuation
- 2000-07-24 KR KR1020000042311A patent/KR100636643B1/ko not_active Expired - Lifetime
- 2000-07-25 JP JP2000224391A patent/JP3859944B2/ja not_active Expired - Lifetime
- 2000-07-25 CN CN00121708A patent/CN1283018A/zh active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JP2001086181A (ja) | 2001-03-30 |
| BR0003015A (pt) | 2001-03-13 |
| EP1072900A2 (en) | 2001-01-31 |
| US6567486B1 (en) | 2003-05-20 |
| KR20010021118A (ko) | 2001-03-15 |
| KR100636643B1 (ko) | 2006-10-20 |
| CN1283018A (zh) | 2001-02-07 |
| AU4869800A (en) | 2001-02-01 |
| JP3859944B2 (ja) | 2006-12-20 |
| EP1072900A3 (en) | 2003-10-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |