JP2001501419A - 通信システムのタイミングおよび周波数を前補正する方法および装置 - Google Patents
通信システムのタイミングおよび周波数を前補正する方法および装置Info
- Publication number
- JP2001501419A JP2001501419A JP10516703A JP51670398A JP2001501419A JP 2001501419 A JP2001501419 A JP 2001501419A JP 10516703 A JP10516703 A JP 10516703A JP 51670398 A JP51670398 A JP 51670398A JP 2001501419 A JP2001501419 A JP 2001501419A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- frequency
- satellite
- timing
- user terminal
- 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.)
- Withdrawn
Links
- 238000004891 communication Methods 0.000 title claims abstract description 93
- 230000006854 communication Effects 0.000 title claims abstract description 93
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/01—Reducing phase shift
-
- 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
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18513—Transmission in a satellite or space-based system
-
- 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
- H04B7/212—Time-division multiple access [TDMA]
- H04B7/2125—Synchronisation
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- Aviation & Aerospace Engineering (AREA)
- General Physics & Mathematics (AREA)
- Radio Relay Systems (AREA)
- Mobile Radio Communication Systems (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US72349096A | 1996-09-30 | 1996-09-30 | |
| US723,490 | 1996-09-30 | ||
| PCT/US1997/017380 WO1998015071A1 (en) | 1996-09-30 | 1997-09-26 | Method and apparatus for precorrecting timing and frequency in communication systems |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2009112965A Division JP2009201143A (ja) | 1996-09-30 | 2009-05-07 | 通信システムのタイミングおよび周波数を事前補正する方法および装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001501419A true JP2001501419A (ja) | 2001-01-30 |
| JP2001501419A5 JP2001501419A5 (enrdf_load_stackoverflow) | 2005-11-24 |
Family
ID=24906496
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10516703A Withdrawn JP2001501419A (ja) | 1996-09-30 | 1997-09-26 | 通信システムのタイミングおよび周波数を前補正する方法および装置 |
| JP2009112965A Pending JP2009201143A (ja) | 1996-09-30 | 2009-05-07 | 通信システムのタイミングおよび周波数を事前補正する方法および装置 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2009112965A Pending JP2009201143A (ja) | 1996-09-30 | 2009-05-07 | 通信システムのタイミングおよび周波数を事前補正する方法および装置 |
Country Status (9)
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006191587A (ja) * | 2004-12-30 | 2006-07-20 | Atheros Communications Inc | 無線通信における同期と伝送劣化推定 |
| JP2009503935A (ja) * | 2005-07-20 | 2009-01-29 | クゥアルコム・フラリオン・テクノロジーズ、インコーポレイテッド | 基地局位置情報を提供し、位置情報を用いて、タイミング補正及び／又は周波数補正をサポートする方法及び装置 |
| JP2009503945A (ja) * | 2005-07-20 | 2009-01-29 | クゥアルコム・フラリオン・テクノロジーズ、インコーポレイテッド | 無線通信システムにおけるタイミング補正値及び／又は周波数補正値をサポートする方法及び装置 |
Families Citing this family (13)
| 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 |
| KR100401123B1 (ko) * | 2000-12-27 | 2003-10-10 | 한국전자통신연구원 | 비 정지궤도 이동통신 시스템에서의 도플러 천이 주파수보상 방법 |
| WO2007128248A1 (de) * | 2006-05-03 | 2007-11-15 | Siemens Aktiengesellschaft | Verfahren zur frequenzabstimmung eines senders und eines empfängers eines mobilen kommunikationsendgerätes zur kompensation des einflusses des dopplereffektes und mobiles kommunikationendgerät |
| TWI385933B (zh) * | 2008-06-20 | 2013-02-11 | Hon Hai Prec Ind Co Ltd | 中頻訊號損耗補償電路 |
| US8116419B2 (en) * | 2008-07-14 | 2012-02-14 | Alcatel Lucent | Methods and apparatuses for estimating time delay and frequency offset in single frequency networks |
| CN102136849A (zh) * | 2011-04-25 | 2011-07-27 | 中国科学院自动化研究所 | 入向链路码分多址的星形无线通信网络系统及实现方法 |
| US9735842B2 (en) | 2012-11-30 | 2017-08-15 | Lg Electronics Inc. | Method and apparatus for relieving doppler broadening in wireless access system that supports super high frequency band |
| US9900856B2 (en) * | 2015-03-20 | 2018-02-20 | Qualcomm Incorporated | Method and apparatus for time or frequency synchronization in non-geosynchronous satellite communication systems |
| CN106572045B (zh) * | 2016-09-27 | 2019-12-13 | 北京无线电计量测试研究所 | 一种卫星时间比对等效带宽合成信号的调制系统与方法 |
| FR3058531B1 (fr) * | 2016-11-08 | 2019-08-09 | Sigfox | Procede de transmission d’un signal par un dispositif emetteur vers un satellite non geosynchrone |
| CN110545136B (zh) * | 2019-07-31 | 2021-11-23 | 上海众睿通信科技有限公司 | 低轨卫星多载波通信系统上行链路载波频偏估计与补偿方法 |
| CN111224909B (zh) * | 2019-11-22 | 2024-09-27 | 辰芯科技有限公司 | 一种频率补偿方法、装置、用户终端和存储介质 |
| CN110798422B (zh) * | 2019-11-25 | 2022-01-07 | 成都天奥集团有限公司 | 低轨卫星多载波通信系统下行链路采样频偏估计与补偿方法 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3864634A (en) * | 1973-10-01 | 1975-02-04 | Us Navy | Doppler correction circuit |
| JPS62214739A (ja) * | 1986-03-15 | 1987-09-21 | Nec Corp | 同期制御方式 |
| DE58907319D1 (de) * | 1988-04-14 | 1994-05-05 | Ant Nachrichtentech | Verfahren und Anordnung zum Reduzieren von Frequenzablagen beim Mobilfunk über Satellit. |
| JP3033176B2 (ja) * | 1990-10-19 | 2000-04-17 | 日本電気株式会社 | 衛星通信地球局用ａｆｃ装置 |
| FR2681995B1 (fr) * | 1991-10-01 | 1993-12-10 | Alcatel Espace | Procede de basculement du trafic dans un systeme de communications par satellites en orbite basse a destination de terminaux et systeme de communications mettant en óoeuvre un tel procede. |
| JPH06244763A (ja) * | 1993-02-19 | 1994-09-02 | Matsushita Electric Ind Co Ltd | 衛星通信装置 |
| US5666648A (en) | 1993-11-09 | 1997-09-09 | Leo One Ip, L.L.C. | Polar relay system for satellite communication |
| US5463400A (en) * | 1994-06-30 | 1995-10-31 | Motorola, Inc. | Method and apparatus for synchronizing to a multi-beam satellite TDMA communication system |
| US5742908A (en) * | 1994-09-14 | 1998-04-21 | Ericsson Inc. | Frequency error correction in a satellite-mobile communications system |
| US5566354A (en) | 1994-09-26 | 1996-10-15 | Sehloemer; Jerry R. | System and method for channel assignment in a satellite telephone system |
| US5644572A (en) | 1995-10-03 | 1997-07-01 | Motorola, Inc. | Method and apparatus for approximating propagation delay for use in transmission compensation to orbiting satellites |
-
1997
- 1997-09-22 ZA ZA9708516A patent/ZA978516B/xx unknown
- 1997-09-26 EP EP97945314A patent/EP0929949A1/en not_active Withdrawn
- 1997-09-26 JP JP10516703A patent/JP2001501419A/ja not_active Withdrawn
- 1997-09-26 CA CA002267169A patent/CA2267169A1/en not_active Abandoned
- 1997-09-26 KR KR1019997003102A patent/KR100791824B1/ko not_active Expired - Fee Related
- 1997-09-26 AU AU46543/97A patent/AU719962B2/en not_active Ceased
- 1997-09-26 WO PCT/US1997/017380 patent/WO1998015071A1/en active Application Filing
- 1997-09-26 CN CNB971801703A patent/CN1140068C/zh not_active Expired - Fee Related
-
1998
- 1998-03-21 TW TW086114248A patent/TW448646B/zh not_active IP Right Cessation
-
2009
- 2009-05-07 JP JP2009112965A patent/JP2009201143A/ja active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006191587A (ja) * | 2004-12-30 | 2006-07-20 | Atheros Communications Inc | 無線通信における同期と伝送劣化推定 |
| JP2009503935A (ja) * | 2005-07-20 | 2009-01-29 | クゥアルコム・フラリオン・テクノロジーズ、インコーポレイテッド | 基地局位置情報を提供し、位置情報を用いて、タイミング補正及び／又は周波数補正をサポートする方法及び装置 |
| JP2009503945A (ja) * | 2005-07-20 | 2009-01-29 | クゥアルコム・フラリオン・テクノロジーズ、インコーポレイテッド | 無線通信システムにおけるタイミング補正値及び／又は周波数補正値をサポートする方法及び装置 |
| US7991362B2 (en) | 2005-07-20 | 2011-08-02 | Qualcomm Incorporated | Methods and apparatus for supporting timing and/or frequency corrections in a wireless communications system |
| US8798638B2 (en) | 2005-07-20 | 2014-08-05 | Qualcomm Incorporated | Methods and apparatus for providing base station position information and using position information to support timing and/or frequency corrections |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20000049034A (ko) | 2000-07-25 |
| TW448646B (en) | 2001-08-01 |
| EP0929949A1 (en) | 1999-07-21 |
| AU4654397A (en) | 1998-04-24 |
| KR100791824B1 (ko) | 2008-01-04 |
| CN1238866A (zh) | 1999-12-15 |
| WO1998015071A1 (en) | 1998-04-09 |
| ZA978516B (en) | 1998-06-10 |
| JP2009201143A (ja) | 2009-09-03 |
| AU719962B2 (en) | 2000-05-18 |
| CN1140068C (zh) | 2004-02-25 |
| CA2267169A1 (en) | 1998-04-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20040915 |
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| A524 | Written submission of copy of amendment under article 19 pct |
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| A02 | Decision of refusal |
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