BR0101426A - Identificação de estação base em sistemas deacesso de múltiplo espectro espalhado com basena multiplexação por divisão de frequênciaortogonal - Google Patents
Identificação de estação base em sistemas deacesso de múltiplo espectro espalhado com basena multiplexação por divisão de frequênciaortogonalInfo
- Publication number
- BR0101426A BR0101426A BR0101426-9A BR0101426A BR0101426A BR 0101426 A BR0101426 A BR 0101426A BR 0101426 A BR0101426 A BR 0101426A BR 0101426 A BR0101426 A BR 0101426A
- Authority
- BR
- Brazil
- Prior art keywords
- pilot
- sequence
- base station
- pilot tone
- frequency
- Prior art date
Links
Classifications
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- 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
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- 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
-
- 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
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- 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
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- 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
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2655—Synchronisation arrangements
- H04L27/2657—Carrier synchronisation
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- 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
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2655—Synchronisation arrangements
- H04L27/2668—Details of algorithms
- H04L27/2673—Details of algorithms characterised by synchronisation parameters
- H04L27/2675—Pilot or known symbols
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
"IDENTIFICAçãO DE ESTAçãO BASE EM SISTEMAS DEACESSO DE MúLTIPLO ESPECTRO ESPALHADO COM BASENA MULTIPLEXAçãO POR DIVISãO DE FREQuêNCIAORTOGONAL". Uma estação base que tem o sinal de enlacedescendente mais forte é identificada utilizando uma inclinaçãosingular de uma seq³ência de salteamento de tom piloto sendotransmitida por uma estação base. Especificamente, a identificaçãoda estação base é feita pela determinação da inclinação do sinalpiloto recebido mais forte, isto é, o sinal piloto recebido que tem omáximo de energia. Em uma versão da invenção, a seq³ência desalteamento de tom piloto tem por base uma seq³ência de LatinSquares. Com uma seq³ência de salteamento de tom piloto combase em Latin Squares, todo o que uma unidade móvel de usuárioprecisa é localizar a freq³ência dos tons pilotos em uma ocasiãoporque as localizações de tons pilotos em ocasiões subsequentespode ser determinada pela inclinação da seq³ência desalteamento de tom piloto Latin Squares. A inclinação e odeslocamento de freq³ência inicial da seq³ência de salteamentode tom piloto com a potência recebida mais forte são determinadospelo emprego de um detector de energia máxima singular. Em umaversão, a inclinação e o deslocamento de freq³ência inicial dosinal piloto que tem a potência recebida mais forte sãodeterminados ao se encontrar a inclinação e o deslocamento defreq³ência inicial de um conjunto previsto de locais de tom pilotoque tem a energia recebida máxima. Em outra versão, odeslocamento de freq³ência do sinal piloto com a potênciarecebida mais forte, isto é, máxima, é estimado em cada um dostempos "t". Esses deslocamentos de freq³ência são empregadosde acordo com um relacionamento prescrito para determinar ainclinação desconhecida e o deslocamento de freq³ência inicial dosinal piloto.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/551,078 US6961364B1 (en) | 2000-04-18 | 2000-04-18 | Base station identification in orthogonal frequency division multiplexing based spread spectrum multiple access systems |
Publications (1)
Publication Number | Publication Date |
---|---|
BR0101426A true BR0101426A (pt) | 2001-11-13 |
Family
ID=24199749
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR0101426-9A BR0101426A (pt) | 2000-04-18 | 2001-04-09 | Identificação de estação base em sistemas deacesso de múltiplo espectro espalhado com basena multiplexação por divisão de frequênciaortogonal |
Country Status (8)
Country | Link |
---|---|
US (2) | US6961364B1 (pt) |
EP (1) | EP1148673A3 (pt) |
JP (1) | JP2001358694A (pt) |
KR (1) | KR100804904B1 (pt) |
CN (1) | CN100454792C (pt) |
AU (1) | AU782935B2 (pt) |
BR (1) | BR0101426A (pt) |
CA (1) | CA2338471C (pt) |
Families Citing this family (111)
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WO2014087674A1 (ja) | 2012-12-07 | 2014-06-12 | パナソニック株式会社 | 信号生成方法、送信装置、受信方法および受信装置 |
CN109787739B (zh) * | 2012-12-31 | 2022-04-12 | 上海华为技术有限公司 | 参考信号配置方法和参考信号发送方法及相关设备 |
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WO2021010872A1 (en) * | 2019-07-15 | 2021-01-21 | Telefonaktiebolaget Lm Ericsson (Publ) | Method for physical layer access control based on a pilot hopping sequence |
CN115842567B (zh) * | 2023-02-22 | 2023-05-02 | 四川思凌科微电子有限公司 | 一种基于chirp通信的动态门限同步方法及装置 |
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US6018317A (en) * | 1995-06-02 | 2000-01-25 | Trw Inc. | Cochannel signal processing system |
US5694434A (en) * | 1996-01-17 | 1997-12-02 | Motorola, Inc. | Methods and apparatus for processing burst signals in a telecommunication system |
FR2743967B1 (fr) * | 1996-01-18 | 1998-03-27 | France Telecom | Procede et dispositif de synchronisation temporelle d'un recepteur d'un signal multiporteuse |
FI102577B (fi) * | 1996-09-05 | 1998-12-31 | Nokia Telecommunications Oy | Lähetys- ja vastaanottomenetelmä ja radiojärjestelmä |
US5867478A (en) * | 1997-06-20 | 1999-02-02 | Motorola, Inc. | Synchronous coherent orthogonal frequency division multiplexing system, method, software and device |
US6131016A (en) * | 1997-08-27 | 2000-10-10 | At&T Corp | Method and apparatus for enhancing communication reception at a wireless communication terminal |
US6507568B2 (en) * | 1997-08-27 | 2003-01-14 | Lucent Technologies Inc. | Enhanced access in wireless communication systems under rapidly fluctuating fading conditions |
US6473418B1 (en) * | 1999-03-11 | 2002-10-29 | Flarion Technologies, Inc. | Orthogonal frequency division multiplexing based spread spectrum multiple access |
US6961364B1 (en) * | 2000-04-18 | 2005-11-01 | Flarion Technologies, Inc. | Base station identification in orthogonal frequency division multiplexing based spread spectrum multiple access systems |
-
2000
- 2000-04-18 US US09/551,078 patent/US6961364B1/en not_active Expired - Fee Related
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2001
- 2001-02-27 CA CA002338471A patent/CA2338471C/en not_active Expired - Fee Related
- 2001-04-09 BR BR0101426-9A patent/BR0101426A/pt not_active IP Right Cessation
- 2001-04-09 EP EP01303316A patent/EP1148673A3/en not_active Withdrawn
- 2001-04-12 AU AU35175/01A patent/AU782935B2/en not_active Ceased
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- 2001-04-17 KR KR1020010020401A patent/KR100804904B1/ko not_active IP Right Cessation
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2005
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CA2338471A1 (en) | 2001-10-18 |
AU3517501A (en) | 2001-10-25 |
EP1148673A2 (en) | 2001-10-24 |
CA2338471C (en) | 2006-11-07 |
KR100804904B1 (ko) | 2008-02-20 |
US7397838B2 (en) | 2008-07-08 |
JP2001358694A (ja) | 2001-12-26 |
US20050238083A1 (en) | 2005-10-27 |
AU782935B2 (en) | 2005-09-08 |
CN100454792C (zh) | 2009-01-21 |
EP1148673A3 (en) | 2004-01-07 |
CN1318916A (zh) | 2001-10-24 |
US6961364B1 (en) | 2005-11-01 |
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