BR0003995A - Transmissor possuindo um primeiro e um segundo modo de operação - Google Patents
Transmissor possuindo um primeiro e um segundo modo de operaçãoInfo
- Publication number
- BR0003995A BR0003995A BR0003995-0A BR0003995A BR0003995A BR 0003995 A BR0003995 A BR 0003995A BR 0003995 A BR0003995 A BR 0003995A BR 0003995 A BR0003995 A BR 0003995A
- Authority
- BR
- Brazil
- Prior art keywords
- transmitter
- operating mode
- scheme
- binary switches
- components
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
- H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
- H04L1/0618—Space-time coding
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transmitters (AREA)
- Radio Transmission System (AREA)
- Time-Division Multiplex Systems (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
<B>TRANSMISSOR POSSUINDO UM PRIMEIRO E UM SEGUNDO MODO DE OPERAçãO<D> é revelada uma arquitetura de transmissor comum tendo incorporado esquemas de diversidade de transmissão de enlace aberto, utilizando uma pluralidade de comutadores binários. O emprego de comutadores binários permite a partilha de certos componentes, se o transmissor estiver utilizando um esquema de diversidade de transmissão ortogonal (OTD) ou um esquema de espalhamento de tempo-espaço (STS). Por conseguinte, o número de componentes no transmissor é minimizado e a complexidade do transmissor é simples o suficiente para ser implementada em um único chip integrado de aplicação específica.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/394,172 US6392988B1 (en) | 1999-09-13 | 1999-09-13 | Transmitter architecture employing space time spreading and orthogonal transmit diversity techniques |
Publications (1)
Publication Number | Publication Date |
---|---|
BR0003995A true BR0003995A (pt) | 2001-04-17 |
Family
ID=23557867
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR0003995-0A BR0003995A (pt) | 1999-09-13 | 2000-09-05 | Transmissor possuindo um primeiro e um segundo modo de operação |
Country Status (9)
Country | Link |
---|---|
US (1) | US6392988B1 (pt) |
EP (1) | EP1087562A3 (pt) |
JP (1) | JP3930235B2 (pt) |
KR (1) | KR100608427B1 (pt) |
CN (1) | CN1288295A (pt) |
AU (1) | AU5653200A (pt) |
BR (1) | BR0003995A (pt) |
CA (1) | CA2317621C (pt) |
ID (1) | ID27248A (pt) |
Families Citing this family (48)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7154958B2 (en) * | 2000-07-05 | 2006-12-26 | Texas Instruments Incorporated | Code division multiple access wireless system with time reversed space time block transmitter diversity |
US6898441B1 (en) * | 2000-09-12 | 2005-05-24 | Lucent Technologies Inc. | Communication system having a flexible transmit configuration |
US8249187B2 (en) | 2002-05-09 | 2012-08-21 | Google Inc. | System, method and apparatus for mobile transmit diversity using symmetric phase difference |
IL158986A0 (en) * | 2001-05-31 | 2004-05-12 | Magnolia Broadband Inc | Communication device with smart antenna using a quality-indication signal |
US6920314B2 (en) * | 2001-07-30 | 2005-07-19 | Lucent Technologies Inc. | Symmetric sweep phase sweep transmit diversity |
US7116944B2 (en) * | 2002-02-07 | 2006-10-03 | Lucent Technologies Inc. | Method and apparatus for feedback error detection in a wireless communications systems |
US7499709B2 (en) * | 2002-02-07 | 2009-03-03 | Alcatel-Lucent Usa Inc. | Method and apparatus for closed loop transmit diversity in a wireless communications system |
AU2002250773A1 (en) | 2002-03-22 | 2003-10-08 | Huawei Technologies Co., Ltd. | A self-adapting weighted space time transmitting diversity method and system thereof |
US7505741B2 (en) * | 2002-11-01 | 2009-03-17 | Magnolia Broadband Inc. | Processing diversity signals using a delay |
US7418067B1 (en) | 2003-04-14 | 2008-08-26 | Magnolia Broadband Inc. | Processing diversity signals at a mobile device using phase adjustments |
US7430430B2 (en) * | 2003-12-16 | 2008-09-30 | Magnolia Broadband Inc. | Adjusting a signal at a diversity system |
US7272359B2 (en) * | 2004-01-26 | 2007-09-18 | Magnolia Broadband Inc. | Communicating signals according to a quality indicator using multiple antenna elements |
US7558591B2 (en) * | 2004-10-12 | 2009-07-07 | Magnolia Broadband Inc. | Determining a power control group boundary of a power control group |
US7139328B2 (en) * | 2004-11-04 | 2006-11-21 | Motorola, Inc. | Method and apparatus for closed loop data transmission |
US7515877B2 (en) * | 2004-11-04 | 2009-04-07 | Magnolia Broadband Inc. | Communicating signals according to a quality indicator and a time boundary indicator |
DE102005017080B4 (de) * | 2005-04-08 | 2007-07-26 | Accelant Communications Gmbh | Übertragungsverfahren in einem Funksystem mit mehreren Sende-/Empfangszweigen in der Basisstation |
US7616930B2 (en) * | 2005-05-24 | 2009-11-10 | Magnolia Broadband Inc. | Determining a phase adjustment in accordance with power trends |
US20060267983A1 (en) * | 2005-05-24 | 2006-11-30 | Magnolia Broadband Inc. | Modifying a signal by adjusting the phase and amplitude of the signal |
US7783267B1 (en) | 2005-06-23 | 2010-08-24 | Magnolia Broadband Inc. | Modifying a signal in response to quality indicator availability |
US7633905B1 (en) | 2005-09-02 | 2009-12-15 | Magnolia Broadband Inc. | Calibrating a transmit diversity communication device |
US7835702B1 (en) | 2005-09-15 | 2010-11-16 | Magnolia Broadband Inc. | Calculating a diversity parameter adjustment according to previously applied diversity parameter adjustments |
US7746946B2 (en) * | 2005-10-10 | 2010-06-29 | Magnolia Broadband Inc. | Performing a scan of diversity parameter differences |
US7630445B1 (en) | 2005-10-25 | 2009-12-08 | Magnolia Broadband Inc. | Establishing slot boundaries of slots of a diversity control feedback signal |
US7796717B2 (en) * | 2005-11-02 | 2010-09-14 | Magnolia Brandband Inc. | Modifying a signal according to a diversity parameter adjustment |
US7965987B2 (en) * | 2005-11-03 | 2011-06-21 | Magnolia Broadband Inc. | Amplifying a transmit signal using a fractional power amplifier |
KR100807392B1 (ko) | 2006-08-30 | 2008-02-28 | 연세대학교 산학협력단 | 다중 안테나 통신 시스템을 위한 디지털 전송장치 |
US7949069B2 (en) * | 2006-10-26 | 2011-05-24 | Magnolia Broadband Inc. | Method, system and apparatus for applying hybrid ARQ to the control of transmit diversity |
US8150441B2 (en) | 2006-11-06 | 2012-04-03 | Magnolia Broadband Inc. | Modifying a signal by controlling transmit diversity parameters |
US8199735B2 (en) * | 2006-12-12 | 2012-06-12 | Google Inc. | Method, system and apparatus for the control of transmit diversity |
US7663545B2 (en) * | 2006-12-26 | 2010-02-16 | Magnolia Broadband Inc. | Method, system and apparatus for determining antenna weighting for transmit diversity |
US8027374B2 (en) * | 2006-12-27 | 2011-09-27 | Magnolia Broadband Inc. | Method, system and apparatus for transmit diversity control |
US20080160990A1 (en) * | 2006-12-29 | 2008-07-03 | Yair Karmi | System, method and apparatus for identification of power control using reverse rate indication |
US7869535B2 (en) * | 2007-02-28 | 2011-01-11 | Magnolia Broadband Inc. | Method, system and apparatus for phase control of transmit diversity signals |
US7991365B2 (en) * | 2007-03-01 | 2011-08-02 | Magnolia Broadband Inc. | Method, system and apparatus for estimation of propagation path variability of a transmit diversity channel |
US20080227414A1 (en) | 2007-03-01 | 2008-09-18 | Yair Karmi | System, method and apparatus for transmit diversity control based on variations in propagation path |
US8699968B2 (en) | 2007-03-14 | 2014-04-15 | Google Inc. | Using multiple and a single feedback for UE uplink beamforming in soft handoff |
US8032091B2 (en) | 2007-03-14 | 2011-10-04 | Magnolia Broadband Inc. | Method, apparatus and system for providing transmit diversity feedback during soft handoff |
US8750811B2 (en) * | 2007-03-14 | 2014-06-10 | Google Inc. | Method, apparatus and system for phase difference adjustment in transmit diversity |
EP2143213B1 (en) * | 2007-03-14 | 2011-05-11 | Magnolia Broadband, Inc. | Method, apparatus and system for providing transmit diversity feedback |
US8046017B2 (en) * | 2007-03-15 | 2011-10-25 | Magnolia Broadband Inc. | Method and apparatus for random access channel probe initialization using transmit diversity |
US8036603B2 (en) * | 2007-03-15 | 2011-10-11 | Magnolia Broadband Inc. | Method, apparatus and system for providing feedback to a transmit diversity device |
US8014734B2 (en) * | 2007-03-15 | 2011-09-06 | Magnolia Broadband Inc. | Method, apparatus and system for controlling a transmit diversity device |
US8032092B2 (en) * | 2007-12-06 | 2011-10-04 | Magnolia Broadband Inc. | System, apparatus and method for introducing antenna pattern variability |
US8442457B2 (en) | 2009-09-08 | 2013-05-14 | Google Inc. | System and method for adaptive beamforming for specific absorption rate control |
US8958757B2 (en) | 2010-05-10 | 2015-02-17 | Google Inc. | System, method and apparatus for mobile transmit diversity using symmetric phase difference |
EP2578042B1 (en) | 2010-05-26 | 2015-07-08 | Google, Inc. | Method for random access channel probe initialization using transmit diversity |
US9048913B2 (en) | 2010-07-06 | 2015-06-02 | Google Inc. | Method and apparatus for adaptive control of transmit diversity to provide operating power reduction |
US8849222B2 (en) | 2011-02-16 | 2014-09-30 | Google Inc. | Method and device for phase adjustment based on closed-loop diversity feedback |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2846860B2 (ja) * | 1996-10-01 | 1999-01-13 | ユニデン株式会社 | スペクトル拡散通信方式を用いた送信機、受信機、通信システム及び通信方法 |
SE9801241L (sv) * | 1997-04-09 | 1998-10-10 | Daewoo Telecom Ltd | PC-CDMA-multibärfrekvenssystem |
US6173005B1 (en) * | 1997-09-04 | 2001-01-09 | Motorola, Inc. | Apparatus and method for transmitting signals in a communication system |
US6185266B1 (en) * | 1997-10-07 | 2001-02-06 | Motorola, Inc. | Method and system for generating a power control metric in an orthogonal transmit diversity communication system |
KR100433901B1 (ko) * | 1998-02-21 | 2004-11-06 | 삼성전자주식회사 | 이동통신시스템의시간스위칭송신다이버시티장치 |
-
1999
- 1999-09-13 US US09/394,172 patent/US6392988B1/en not_active Expired - Lifetime
-
2000
- 2000-09-04 EP EP00307627A patent/EP1087562A3/en not_active Withdrawn
- 2000-09-05 BR BR0003995-0A patent/BR0003995A/pt not_active Application Discontinuation
- 2000-09-06 AU AU56532/00A patent/AU5653200A/en not_active Abandoned
- 2000-09-06 CA CA002317621A patent/CA2317621C/en not_active Expired - Fee Related
- 2000-09-06 JP JP2000270156A patent/JP3930235B2/ja not_active Expired - Fee Related
- 2000-09-08 KR KR1020000053298A patent/KR100608427B1/ko not_active IP Right Cessation
- 2000-09-12 CN CN00126392A patent/CN1288295A/zh active Pending
- 2000-09-13 ID IDP20000790D patent/ID27248A/id unknown
Also Published As
Publication number | Publication date |
---|---|
KR100608427B1 (ko) | 2006-08-02 |
US6392988B1 (en) | 2002-05-21 |
AU5653200A (en) | 2001-03-15 |
CA2317621A1 (en) | 2001-03-13 |
EP1087562A3 (en) | 2003-05-14 |
JP2001127674A (ja) | 2001-05-11 |
ID27248A (id) | 2001-03-15 |
EP1087562A2 (en) | 2001-03-28 |
CN1288295A (zh) | 2001-03-21 |
JP3930235B2 (ja) | 2007-06-13 |
KR20010030327A (ko) | 2001-04-16 |
CA2317621C (en) | 2004-03-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B11A | Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing | ||
B11Y | Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette] | ||
B15K | Others concerning applications: alteration of classification |
Ipc: H04L 1/06 (2006.01) |