ES2310940T3 - Sistema y procedimiento para resolver incertidumbre de frecuencia y sincronismo en adquisicion de canal de acceso en un sistema de comunicacion de espectro ensanchado. - Google Patents
Sistema y procedimiento para resolver incertidumbre de frecuencia y sincronismo en adquisicion de canal de acceso en un sistema de comunicacion de espectro ensanchado. Download PDFInfo
- Publication number
- ES2310940T3 ES2310940T3 ES99943990T ES99943990T ES2310940T3 ES 2310940 T3 ES2310940 T3 ES 2310940T3 ES 99943990 T ES99943990 T ES 99943990T ES 99943990 T ES99943990 T ES 99943990T ES 2310940 T3 ES2310940 T3 ES 2310940T3
- Authority
- ES
- Spain
- Prior art keywords
- signal
- search
- frequency
- satellite
- uncertainty
- 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.)
- Expired - Lifetime
Links
- 230000006854 communication Effects 0.000 title claims abstract description 76
- 238000004891 communication Methods 0.000 title claims abstract description 76
- 238000000034 method Methods 0.000 title claims abstract description 39
- 238000001228 spectrum Methods 0.000 title description 10
- 230000005540 biological transmission Effects 0.000 abstract description 12
- 238000012360 testing method Methods 0.000 description 73
- 230000033001 locomotion Effects 0.000 description 11
- 230000008569 process Effects 0.000 description 11
- 230000001427 coherent effect Effects 0.000 description 10
- 230000015654 memory Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 230000007480 spreading Effects 0.000 description 6
- 230000000875 corresponding effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000006870 function Effects 0.000 description 3
- 238000012546 transfer Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000007175 bidirectional communication Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 208000004104 gestational diabetes Diseases 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/204—Multiple access
- H04B7/216—Code division or spread-spectrum multiple access [CDMA, SSMA]
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radio Relay Systems (AREA)
- Mobile Radio Communication Systems (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Circuits Of Receivers In General (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/140,936 US6381225B1 (en) | 1998-08-27 | 1998-08-27 | System and method for resolving frequency and timing uncertainty in access transmissions in a spread spectrum communication system |
| US140936 | 1998-08-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2310940T3 true ES2310940T3 (es) | 2009-01-16 |
Family
ID=22493451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES99943990T Expired - Lifetime ES2310940T3 (es) | 1998-08-27 | 1999-08-27 | Sistema y procedimiento para resolver incertidumbre de frecuencia y sincronismo en adquisicion de canal de acceso en un sistema de comunicacion de espectro ensanchado. |
Country Status (14)
| Country | Link |
|---|---|
| US (2) | US6381225B1 (https=) |
| EP (1) | EP1105981B1 (https=) |
| JP (1) | JP4514953B2 (https=) |
| KR (1) | KR100767846B1 (https=) |
| CN (1) | CN1137554C (https=) |
| AT (1) | ATE406713T1 (https=) |
| AU (1) | AU759518B2 (https=) |
| BR (1) | BR9913306A (https=) |
| CA (1) | CA2341741A1 (https=) |
| DE (1) | DE69939428D1 (https=) |
| ES (1) | ES2310940T3 (https=) |
| HK (1) | HK1039839B (https=) |
| RU (1) | RU2237361C2 (https=) |
| WO (1) | WO2000013341A1 (https=) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6381225B1 (en) * | 1998-08-27 | 2002-04-30 | Qualcomm Incorporated | System and method for resolving frequency and timing uncertainty in access transmissions in a spread spectrum communication system |
| US6813257B1 (en) * | 2000-06-26 | 2004-11-02 | Motorola, Inc. | Apparatus and methods for controlling short code timing offsets in a CDMA system |
| US7330524B2 (en) * | 2004-12-30 | 2008-02-12 | Atheros Communications, Inc. | Joint synchronization and impairments estimation using known data patterns |
| US7970345B2 (en) * | 2005-06-22 | 2011-06-28 | Atc Technologies, Llc | Systems and methods of waveform and/or information splitting for wireless transmission of information to one or more radioterminals over a plurality of transmission paths and/or system elements |
| EP1838008A1 (en) * | 2006-03-23 | 2007-09-26 | Sony Deutschland Gmbh | Preamble for synchronization |
| US8346162B1 (en) * | 2009-09-25 | 2013-01-01 | Emc Satcom Technologies | System and method for reducing VSAT apertures via satellite MIMO |
| US9094906B2 (en) * | 2011-11-11 | 2015-07-28 | Telefonaktiebolaget Lm Ericsson (Publ) | Multi-stage timing and frequency synchronization |
| CN103197328B (zh) * | 2013-03-14 | 2015-05-27 | 中国人民解放军国防科学技术大学 | 一种基于2ms数据存储的高动态卫星接收机快速捕获方法 |
| US20140313073A1 (en) * | 2013-03-15 | 2014-10-23 | Carlo Dinallo | Method and apparatus for establishing communications with a satellite |
| US10200109B2 (en) * | 2016-04-29 | 2019-02-05 | The Boeing Company | System and method for distributed wireless communications |
| MX2021005275A (es) | 2018-11-06 | 2021-06-23 | Ericsson Telefon Ab L M | Identificacion de region espectral para simbolo de referencia. |
| CN111679123B (zh) * | 2020-08-12 | 2020-12-11 | 长沙北斗产业安全技术研究院有限公司 | 适用于多模调制体制的符号边沿与频率估计方法与系统 |
Family Cites Families (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3864634A (en) | 1973-10-01 | 1975-02-04 | Us Navy | Doppler correction circuit |
| US4567588A (en) | 1984-03-23 | 1986-01-28 | Sangamo Weston, Inc. | Synchronization system for use in direct sequence spread spectrum signal receiver |
| US4653076A (en) | 1984-03-23 | 1987-03-24 | Sangamo Weston, Inc. | Timing signal correction system for use in direct sequence spread signal receiver |
| US4675678A (en) * | 1984-07-03 | 1987-06-23 | Textron Inc. | Frequency agile radar system |
| US4621365A (en) | 1984-11-16 | 1986-11-04 | Hughes Aircraft Company | Synchronization preamble correlation detector and frequency estimator |
| EP0337269B1 (de) | 1988-04-14 | 1994-03-30 | ANT Nachrichtentechnik GmbH | Verfahren und Anordnung zum Reduzieren von Frequenzablagen beim Mobilfunk über Satellit |
| US5095538A (en) | 1989-09-29 | 1992-03-10 | Motorola, Inc. | Calibrated method and device for narrow band Doppler compensation |
| US5103459B1 (en) | 1990-06-25 | 1999-07-06 | Qualcomm Inc | System and method for generating signal waveforms in a cdma cellular telephone system |
| JPH04207530A (ja) * | 1990-11-30 | 1992-07-29 | Toshiba Corp | 衛星通信システムおよび周波数追尾ループ |
| IL100213A (en) * | 1990-12-07 | 1995-03-30 | Qualcomm Inc | CDMA microcellular telephone system and distributed antenna system therefor |
| JP2953260B2 (ja) | 1993-07-05 | 1999-09-27 | ケイディディ株式会社 | 周波数オフセット補償方法 |
| US5490165A (en) | 1993-10-28 | 1996-02-06 | Qualcomm Incorporated | Demodulation element assignment in a system capable of receiving multiple signals |
| DE69535838D1 (de) * | 1994-02-09 | 2008-10-23 | Nippon Telegraph & Telephone | Verfahren und Gerät für CDMA mobile Kommunikationen |
| JPH07321721A (ja) * | 1994-05-23 | 1995-12-08 | Tasada Kosakusho:Kk | 単一波マルチポイント衛星通信方法 |
| US5666122A (en) | 1994-07-11 | 1997-09-09 | Qualcomm Incorporated | Method for rapid signal acquisition in a satellite communications system |
| US5742908A (en) * | 1994-09-14 | 1998-04-21 | Ericsson Inc. | Frequency error correction in a satellite-mobile communications system |
| JP3012776B2 (ja) * | 1995-01-05 | 2000-02-28 | エヌ・ティ・ティ移動通信網株式会社 | 衛星通信方式 |
| JPH08256085A (ja) | 1995-03-17 | 1996-10-01 | Sony Corp | スペクトラム拡散通信システム及びその送信機と受信機 |
| US5805648A (en) | 1995-07-31 | 1998-09-08 | Qualcomm Incorporated | Method and apparatus for performing search acquisition in a CDMA communication system |
| US5907813A (en) * | 1995-11-30 | 1999-05-25 | Qualcomm Incorporated | Signal acquisition in a wireless communication system by transmitting repeated access probes from a terminal to a hub |
| EP0825737B1 (en) * | 1996-03-05 | 2007-05-02 | NTT DoCoMo, Inc. | Signal transmission method, transmitter and receiver in mobile communication system |
| US5835847A (en) * | 1996-04-02 | 1998-11-10 | Qualcomm Incorporated | Pilot signal strength control for a low earth orbiting satellite communications system |
| US5924015A (en) * | 1996-04-30 | 1999-07-13 | Trw Inc | Power control method and apparatus for satellite based telecommunications system |
| US5784695A (en) * | 1996-05-14 | 1998-07-21 | Trw Inc. | Method and apparatus for handover control in a satellite based telecommunications system |
| US5640166A (en) * | 1996-09-03 | 1997-06-17 | Motorola, Inc. | Method for compensating for doppler frequency shifts for satellite communication systems |
| ZA978516B (en) * | 1996-09-30 | 1998-06-10 | Qualcomm Inc | Method and apparatus for precorrecting timing and frequency in communication systems. |
| US5844521A (en) * | 1996-12-02 | 1998-12-01 | Trw Inc. | Geolocation method and apparatus for satellite based telecommunications system |
| US6163533A (en) | 1997-04-30 | 2000-12-19 | Telefonaktiebolaget Lm Ericsson (Publ) | Random access in a mobile telecommunications system |
| US6317583B1 (en) * | 1997-07-25 | 2001-11-13 | Trw Inc. | Telecommunications satellite channelizer |
| US6167056A (en) * | 1997-11-10 | 2000-12-26 | Qualcomm Incorporated | Access channel slot sharing |
| US6381225B1 (en) * | 1998-08-27 | 2002-04-30 | Qualcomm Incorporated | System and method for resolving frequency and timing uncertainty in access transmissions in a spread spectrum communication system |
-
1998
- 1998-08-27 US US09/140,936 patent/US6381225B1/en not_active Expired - Lifetime
-
1999
- 1999-08-27 JP JP2000568206A patent/JP4514953B2/ja not_active Expired - Fee Related
- 1999-08-27 DE DE69939428T patent/DE69939428D1/de not_active Expired - Lifetime
- 1999-08-27 ES ES99943990T patent/ES2310940T3/es not_active Expired - Lifetime
- 1999-08-27 HK HK02101337.8A patent/HK1039839B/zh not_active IP Right Cessation
- 1999-08-27 EP EP99943990A patent/EP1105981B1/en not_active Expired - Lifetime
- 1999-08-27 CN CNB998124591A patent/CN1137554C/zh not_active Expired - Fee Related
- 1999-08-27 BR BR9913306-7A patent/BR9913306A/pt not_active IP Right Cessation
- 1999-08-27 KR KR1020017002549A patent/KR100767846B1/ko not_active Expired - Fee Related
- 1999-08-27 CA CA002341741A patent/CA2341741A1/en not_active Abandoned
- 1999-08-27 AT AT99943990T patent/ATE406713T1/de active
- 1999-08-27 RU RU2001107970/09A patent/RU2237361C2/ru not_active IP Right Cessation
- 1999-08-27 AU AU56975/99A patent/AU759518B2/en not_active Ceased
- 1999-08-27 WO PCT/US1999/019810 patent/WO2000013341A1/en not_active Ceased
-
2002
- 2002-02-11 US US10/074,060 patent/US7301915B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| HK1039839A1 (en) | 2002-05-10 |
| JP2002524912A (ja) | 2002-08-06 |
| HK1039839B (zh) | 2004-12-10 |
| AU5697599A (en) | 2000-03-21 |
| ATE406713T1 (de) | 2008-09-15 |
| BR9913306A (pt) | 2003-01-28 |
| US20020154608A1 (en) | 2002-10-24 |
| EP1105981A1 (en) | 2001-06-13 |
| CN1137554C (zh) | 2004-02-04 |
| US6381225B1 (en) | 2002-04-30 |
| KR100767846B1 (ko) | 2007-10-17 |
| EP1105981B1 (en) | 2008-08-27 |
| DE69939428D1 (de) | 2008-10-09 |
| KR20010073047A (ko) | 2001-07-31 |
| AU759518B2 (en) | 2003-04-17 |
| JP4514953B2 (ja) | 2010-07-28 |
| CN1324530A (zh) | 2001-11-28 |
| CA2341741A1 (en) | 2000-03-09 |
| WO2000013341A1 (en) | 2000-03-09 |
| US7301915B2 (en) | 2007-11-27 |
| RU2237361C2 (ru) | 2004-09-27 |
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