CN1204769C - 用于正交频分复用ofdm基扩频多址无线系统中的基站中的设备和方法 - Google Patents
用于正交频分复用ofdm基扩频多址无线系统中的基站中的设备和方法 Download PDFInfo
- Publication number
- CN1204769C CN1204769C CNB011165448A CN01116544A CN1204769C CN 1204769 C CN1204769 C CN 1204769C CN B011165448 A CNB011165448 A CN B011165448A CN 01116544 A CN01116544 A CN 01116544A CN 1204769 C CN1204769 C CN 1204769C
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- China
- Prior art keywords
- centerdot
- pilot tone
- tone
- base station
- equipment
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- 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 - Fee Related
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/713—Spread spectrum techniques using frequency hopping
- H04B1/7143—Arrangements for generation of hop patterns
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/713—Spread spectrum techniques using frequency hopping
- H04B1/7156—Arrangements for sequence synchronisation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0224—Channel estimation using sounding signals
- H04L25/0226—Channel estimation using sounding signals sounding signals per se
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2602—Signal structure
- H04L27/261—Details of reference signals
- H04L27/2613—Structure of the reference signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0014—Three-dimensional division
- H04L5/0016—Time-frequency-code
- H04L5/0019—Time-frequency-code in which one code is applied, as a temporal sequence, to all frequencies
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/713—Spread spectrum techniques using frequency hopping
- H04B1/7156—Arrangements for sequence synchronisation
- H04B2001/71563—Acquisition
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Mobile Radio Communication Systems (AREA)
- Time-Division Multiplex Systems (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
Description
Claims (32)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/551,791 | 2000-04-18 | ||
US09/551,791 US6954481B1 (en) | 2000-04-18 | 2000-04-18 | Pilot use in orthogonal frequency division multiplexing based spread spectrum multiple access systems |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1318953A CN1318953A (zh) | 2001-10-24 |
CN1204769C true CN1204769C (zh) | 2005-06-01 |
Family
ID=24202693
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB011165448A Expired - Fee Related CN1204769C (zh) | 2000-04-18 | 2001-04-12 | 用于正交频分复用ofdm基扩频多址无线系统中的基站中的设备和方法 |
Country Status (8)
Country | Link |
---|---|
US (2) | US6954481B1 (zh) |
EP (1) | EP1148674A3 (zh) |
JP (1) | JP2001358695A (zh) |
KR (1) | KR100804845B1 (zh) |
CN (1) | CN1204769C (zh) |
AU (1) | AU783447B2 (zh) |
BR (1) | BR0101459A (zh) |
CA (1) | CA2339515A1 (zh) |
Families Citing this family (83)
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US7035311B2 (en) * | 2001-12-05 | 2006-04-25 | Sicom Systems, Ltd. | Apparatus and method for a digital, wideband, intercept and analysis processor for frequency hopping signals |
KR100834613B1 (ko) * | 2002-01-10 | 2008-06-02 | 삼성전자주식회사 | 기지국에서 송신 출력을 측정하는 방법 및 장치 |
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FR2854020B1 (fr) * | 2003-04-17 | 2005-09-09 | Wavecom | Procede de transmission de donnees radio mettant en oeuvre plusieurs motifs de pilotes distincts, procede de reception, systeme, mobile et station de base correspondants |
US8064528B2 (en) | 2003-05-21 | 2011-11-22 | Regents Of The University Of Minnesota | Estimating frequency-offsets and multi-antenna channels in MIMO OFDM systems |
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CN100493060C (zh) * | 2004-07-27 | 2009-05-27 | 华为技术有限公司 | 一种通信系统时频资源的分配方法 |
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KR100709691B1 (ko) | 2004-12-08 | 2007-04-19 | 한국전자통신연구원 | 송신기 및 송신기의 주파수 도약 방법 |
US8009551B2 (en) * | 2004-12-22 | 2011-08-30 | Qualcomm Incorporated | Initial pilot frequency selection |
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ATE379911T1 (de) * | 2005-03-01 | 2007-12-15 | Alcatel Lucent | Verfahren zur ofdm datenübertragung in einem mobilen mehrzellen-netzwerk mit pilotsymbolen zur kanalschätzung, und entsprechende basisstation, basisstationkontroller, mobilnetzwerk |
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CN100463458C (zh) * | 2005-07-08 | 2009-02-18 | 广州海格通信集团股份有限公司 | 一种正交频分复用的跳频同步实现方法 |
US7751510B2 (en) * | 2005-07-26 | 2010-07-06 | Qualcomm Incorporated | Simplified channel and interference estimation with dedicated pilot tones for OFDMA |
US8885628B2 (en) | 2005-08-08 | 2014-11-11 | Qualcomm Incorporated | Code division multiplexing in a single-carrier frequency division multiple access system |
US9209956B2 (en) | 2005-08-22 | 2015-12-08 | Qualcomm Incorporated | Segment sensitive scheduling |
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US8644292B2 (en) | 2005-08-24 | 2014-02-04 | Qualcomm Incorporated | Varied transmission time intervals for wireless communication system |
US9136974B2 (en) | 2005-08-30 | 2015-09-15 | Qualcomm Incorporated | Precoding and SDMA support |
US8693405B2 (en) | 2005-10-27 | 2014-04-08 | Qualcomm Incorporated | SDMA resource management |
US8582509B2 (en) | 2005-10-27 | 2013-11-12 | Qualcomm Incorporated | Scalable frequency band operation in wireless communication systems |
US9210651B2 (en) | 2005-10-27 | 2015-12-08 | Qualcomm Incorporated | Method and apparatus for bootstraping information in a communication system |
US9225416B2 (en) | 2005-10-27 | 2015-12-29 | Qualcomm Incorporated | Varied signaling channels for a reverse link in a wireless communication system |
US9172453B2 (en) | 2005-10-27 | 2015-10-27 | Qualcomm Incorporated | Method and apparatus for pre-coding frequency division duplexing system |
US9225488B2 (en) | 2005-10-27 | 2015-12-29 | Qualcomm Incorporated | Shared signaling channel |
US8477684B2 (en) | 2005-10-27 | 2013-07-02 | Qualcomm Incorporated | Acknowledgement of control messages in a wireless communication system |
US9088384B2 (en) | 2005-10-27 | 2015-07-21 | Qualcomm Incorporated | Pilot symbol transmission in wireless communication systems |
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US7711029B2 (en) * | 2005-12-02 | 2010-05-04 | Telefonaktiebolaget Lm Ericsson (Publ) | Hopping pilot pattern for telecommunications |
KR101106297B1 (ko) * | 2005-12-23 | 2012-01-18 | 삼성전자주식회사 | Ofdm 심볼의 주파수 호핑 방법 |
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CN101867948B (zh) * | 2009-04-14 | 2015-06-03 | 中兴通讯股份有限公司 | 一种无线通信系统中下行链路中间导频的发送方法 |
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CN104158644B (zh) * | 2014-08-22 | 2018-06-08 | 北京智谷睿拓技术服务有限公司 | 多天线系统导频分配方法及导频分配装置 |
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DE19755832A1 (de) * | 1997-12-16 | 1999-06-17 | Cit Alcatel | Verfahren zur Erzeugung einer Frequenzsprungfolge mittels verketteter Kodierungen, Funkvorrichtung und Funkkombinationssystem dafür |
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KR100326120B1 (ko) * | 1999-07-20 | 2002-03-07 | 윤종용 | 멀티 캐리어 코드분할다중접속 비동기전송모드의 송수신시스템 |
KR100429837B1 (ko) * | 1999-09-22 | 2004-05-03 | 삼성전자주식회사 | 직교주파수 분할 다중화 신호의 동기화 방법 및 그 장치 |
US6954481B1 (en) * | 2000-04-18 | 2005-10-11 | Flarion Technologies, Inc. | Pilot use in orthogonal frequency division multiplexing based spread spectrum multiple access systems |
-
2000
- 2000-04-18 US US09/551,791 patent/US6954481B1/en not_active Expired - Fee Related
-
2001
- 2001-03-05 CA CA002339515A patent/CA2339515A1/en not_active Abandoned
- 2001-04-09 EP EP01303339A patent/EP1148674A3/en not_active Withdrawn
- 2001-04-11 BR BR0101459-5A patent/BR0101459A/pt not_active IP Right Cessation
- 2001-04-12 CN CNB011165448A patent/CN1204769C/zh not_active Expired - Fee Related
- 2001-04-12 AU AU35177/01A patent/AU783447B2/en not_active Ceased
- 2001-04-13 KR KR1020010019781A patent/KR100804845B1/ko not_active IP Right Cessation
- 2001-04-18 JP JP2001119083A patent/JP2001358695A/ja active Pending
-
2005
- 2005-07-11 US US11/178,909 patent/US7376172B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CA2339515A1 (en) | 2001-10-18 |
US6954481B1 (en) | 2005-10-11 |
AU3517701A (en) | 2001-10-25 |
US7376172B2 (en) | 2008-05-20 |
US20060002452A1 (en) | 2006-01-05 |
KR100804845B1 (ko) | 2008-02-20 |
EP1148674A3 (en) | 2004-01-07 |
AU783447B2 (en) | 2005-10-27 |
KR20010098569A (ko) | 2001-11-08 |
BR0101459A (pt) | 2001-12-04 |
EP1148674A2 (en) | 2001-10-24 |
JP2001358695A (ja) | 2001-12-26 |
CN1318953A (zh) | 2001-10-24 |
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