CN1993905A - 移动模式通信系统反向链路上的同步 - Google Patents
移动模式通信系统反向链路上的同步 Download PDFInfo
- Publication number
- CN1993905A CN1993905A CNA2005800259903A CN200580025990A CN1993905A CN 1993905 A CN1993905 A CN 1993905A CN A2005800259903 A CNA2005800259903 A CN A2005800259903A CN 200580025990 A CN200580025990 A CN 200580025990A CN 1993905 A CN1993905 A CN 1993905A
- Authority
- CN
- China
- Prior art keywords
- emission parameter
- signal
- terminal
- loop control
- emission
- 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
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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
- H04B7/185—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
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
- H04B7/18539—Arrangements for managing radio, resources, i.e. for establishing or releasing a connection
- H04B7/18543—Arrangements for managing radio, resources, i.e. for establishing or releasing a connection for adaptation of transmission parameters, e.g. power control
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- Aviation & Aerospace Engineering (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Relay Systems (AREA)
Abstract
Description
Claims (32)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/860,883 | 2004-06-03 | ||
US10/860,883 US7933215B2 (en) | 2004-06-03 | 2004-06-03 | Synchronization on reverse link of mobile mode communications systems |
Publications (1)
Publication Number | Publication Date |
---|---|
CN1993905A true CN1993905A (zh) | 2007-07-04 |
Family
ID=34971422
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNA2005800259903A Pending CN1993905A (zh) | 2004-06-03 | 2005-05-27 | 移动模式通信系统反向链路上的同步 |
Country Status (7)
Country | Link |
---|---|
US (1) | US7933215B2 (zh) |
EP (1) | EP1751889A1 (zh) |
JP (1) | JP2008502210A (zh) |
CN (1) | CN1993905A (zh) |
AR (1) | AR050157A1 (zh) |
CA (1) | CA2568605A1 (zh) |
WO (1) | WO2005122430A1 (zh) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101854713A (zh) * | 2010-03-30 | 2010-10-06 | 中国人民解放军信息工程大学 | 一种卫星cdma系统及其中反向链路的同步方法 |
CN102685068A (zh) * | 2008-04-25 | 2012-09-19 | Adc长途电讯有限公司 | 用于ofdma通信中的多普勒频移补偿的系统和方法 |
CN104584456A (zh) * | 2012-08-21 | 2015-04-29 | 三菱电机株式会社 | 通信系统、通信终端、通信方法、码片时钟产生方法及正交码产生方法 |
CN106488546A (zh) * | 2015-08-24 | 2017-03-08 | 中兴通讯股份有限公司 | 时间调整的方法及装置 |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7933215B2 (en) * | 2004-06-03 | 2011-04-26 | Qualcomm Incorporated | Synchronization on reverse link of mobile mode communications systems |
US8027318B2 (en) * | 2004-06-30 | 2011-09-27 | Vt Idirect, Inc. | Method, apparatus and system for rapid acquisition of remote nodes in a communication system |
WO2006107988A1 (en) | 2005-04-05 | 2006-10-12 | Skybitz, Inc. | Multiple return link |
EP1804442A1 (en) * | 2006-01-03 | 2007-07-04 | Samsung Electronics Co., Ltd. | Apparatus and method for transparent relaying in a multi-hop relay cellular network |
US20070177492A1 (en) * | 2006-01-27 | 2007-08-02 | Qualcomm Incorporated | Methods and tools for expanding coverage of an ofdm broadcast transmitter via transmit timing advance |
US7991288B1 (en) * | 2006-02-07 | 2011-08-02 | Lockheed Martin Corporation | Optical code division multiple access data storage encryption and retrieval |
CN101589567B (zh) * | 2007-01-09 | 2013-06-12 | 株式会社Ntt都科摩 | 基站装置以及通信控制方法 |
US8379745B1 (en) * | 2007-07-06 | 2013-02-19 | Marvell International Ltd. | Forward channel variation detection in a wireless communication system |
KR101459014B1 (ko) * | 2008-02-04 | 2014-11-07 | 삼성전자주식회사 | 이동통신 시스템의 주파수 제어 장치 및 방법 |
WO2011151662A1 (en) * | 2010-06-02 | 2011-12-08 | Nokia Corporation | Method and apparatus for adjacent-channel emission limit depending on synchronization of interfered receiver |
WO2013161274A1 (ja) * | 2012-04-26 | 2013-10-31 | 日本電気株式会社 | 情報配信システム、ゲートウェイ装置、配信制御方法及びプログラムを格納した非一時的なコンピュータ可読媒体 |
JP5935504B2 (ja) * | 2012-05-22 | 2016-06-15 | 富士通株式会社 | 通信装置及び通信方法 |
JP6008103B2 (ja) * | 2012-08-21 | 2016-10-19 | 三菱電機株式会社 | ショートメッセージ通信端末 |
JP6142483B2 (ja) * | 2012-08-21 | 2017-06-07 | 三菱電機株式会社 | 通信端末 |
JP5648659B2 (ja) * | 2012-08-21 | 2015-01-07 | 三菱電機株式会社 | 通信システム、通信端末及び通信方法 |
JP5880651B2 (ja) * | 2014-09-24 | 2016-03-09 | 三菱電機株式会社 | チップクロック生成方法、直交符号生成方法及び通信端末 |
US10321450B2 (en) * | 2014-12-09 | 2019-06-11 | Myriota Pty Ltd | Multicarrier communications system |
US9900856B2 (en) | 2015-03-20 | 2018-02-20 | Qualcomm Incorporated | Method and apparatus for time or frequency synchronization in non-geosynchronous satellite communication systems |
US9979462B2 (en) * | 2016-06-03 | 2018-05-22 | Lockheed Martin Corporation | Resilient virtual ground receivers |
US20180097560A1 (en) * | 2016-10-05 | 2018-04-05 | Ubiqomm, LLC | Apparatus and methods to provide communications to aerial platforms |
GB2557628B (en) | 2016-12-13 | 2020-01-01 | Inmarsat Global Ltd | Forward link power control |
US10673491B2 (en) | 2018-07-18 | 2020-06-02 | Totum Labs, Inc. | Multiple access system and method for determining a distance to an endpoint |
CN110505001B (zh) * | 2019-07-30 | 2020-11-06 | 北京大学 | 一种基于卫星载荷平台的旁路网络导引方法 |
JP7059232B2 (ja) * | 2019-08-26 | 2022-04-25 | Hapsモバイル株式会社 | Hapsマルチフィーダリンクにおけるリバースリンク干渉キャンセリング |
CN110690918B (zh) * | 2019-09-28 | 2021-09-03 | 西南电子技术研究所(中国电子科技集团公司第十研究所) | 航天测控链路参数调整的方法 |
JP7236370B2 (ja) * | 2019-11-01 | 2023-03-09 | Hapsモバイル株式会社 | Hapsのマルチフィーダリンクにおけるスペクトル拡散パイロット信号を用いた伝搬路応答測定及び干渉キャンセリング |
US11265076B2 (en) * | 2020-04-10 | 2022-03-01 | Totum Labs, Inc. | System and method for forward error correcting across multiple satellites |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0894733A (ja) | 1994-09-26 | 1996-04-12 | Japan Radio Co Ltd | Gps受信機 |
US5910945A (en) | 1996-04-30 | 1999-06-08 | Trw Inc. | Method and apparatus for synchronizing communications in a satellite based telecommunications system |
US5703595A (en) * | 1996-08-02 | 1997-12-30 | Motorola, Inc. | Method and apparatus for erratic doppler frequency shift compensation |
US5943606A (en) * | 1996-09-30 | 1999-08-24 | Qualcomm Incorporated | Determination of frequency offsets in communication systems |
JPH10142312A (ja) | 1996-11-07 | 1998-05-29 | Matsushita Electric Ind Co Ltd | 高周波受信機 |
US5956619A (en) * | 1996-12-12 | 1999-09-21 | Globalstar L.P. | Satellite controlled power control for personal communication user terminals |
JP2000040958A (ja) | 1998-07-24 | 2000-02-08 | Advantest Corp | 基準周波数・タイミング発生装置 |
US7082292B2 (en) * | 2000-04-18 | 2006-07-25 | Sirf Technology, Inc. | Mobile communications device with GPS receiver and common clock source |
WO2004002022A1 (en) | 2002-06-24 | 2003-12-31 | Qualcomm Incorporated | Method for return link sychronisation in an orthogonal cdma satellite system |
US7181666B2 (en) * | 2003-04-29 | 2007-02-20 | Qualcomm, Incorporated | Method, apparatus, and system for user-multiplexing in multiple access systems with retransmission |
US7933215B2 (en) * | 2004-06-03 | 2011-04-26 | Qualcomm Incorporated | Synchronization on reverse link of mobile mode communications systems |
-
2004
- 2004-06-03 US US10/860,883 patent/US7933215B2/en active Active
-
2005
- 2005-05-27 CA CA002568605A patent/CA2568605A1/en not_active Abandoned
- 2005-05-27 WO PCT/US2005/018833 patent/WO2005122430A1/en active Application Filing
- 2005-05-27 JP JP2007515418A patent/JP2008502210A/ja active Pending
- 2005-05-27 EP EP05754907A patent/EP1751889A1/en not_active Withdrawn
- 2005-05-27 CN CNA2005800259903A patent/CN1993905A/zh active Pending
- 2005-06-02 AR ARP050102272A patent/AR050157A1/es unknown
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102685068A (zh) * | 2008-04-25 | 2012-09-19 | Adc长途电讯有限公司 | 用于ofdma通信中的多普勒频移补偿的系统和方法 |
CN101854713A (zh) * | 2010-03-30 | 2010-10-06 | 中国人民解放军信息工程大学 | 一种卫星cdma系统及其中反向链路的同步方法 |
CN104584456A (zh) * | 2012-08-21 | 2015-04-29 | 三菱电机株式会社 | 通信系统、通信终端、通信方法、码片时钟产生方法及正交码产生方法 |
CN104584456B (zh) * | 2012-08-21 | 2018-02-02 | 三菱电机株式会社 | 一种通信系统及通信终端 |
CN106488546A (zh) * | 2015-08-24 | 2017-03-08 | 中兴通讯股份有限公司 | 时间调整的方法及装置 |
Also Published As
Publication number | Publication date |
---|---|
WO2005122430A1 (en) | 2005-12-22 |
JP2008502210A (ja) | 2008-01-24 |
EP1751889A1 (en) | 2007-02-14 |
CA2568605A1 (en) | 2005-12-22 |
AR050157A1 (es) | 2006-10-04 |
US20050270999A1 (en) | 2005-12-08 |
US7933215B2 (en) | 2011-04-26 |
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