AR039487A1 - Circuito cerrado, simple y robusto, para rastreo digital de codigo para sistemas de comunicacion inalambrica - Google Patents
Circuito cerrado, simple y robusto, para rastreo digital de codigo para sistemas de comunicacion inalambricaInfo
- Publication number
- AR039487A1 AR039487A1 ARP030101484A ARP030101484A AR039487A1 AR 039487 A1 AR039487 A1 AR 039487A1 AR P030101484 A ARP030101484 A AR P030101484A AR P030101484 A ARP030101484 A AR P030101484A AR 039487 A1 AR039487 A1 AR 039487A1
- Authority
- AR
- Argentina
- Prior art keywords
- digital code
- code tracking
- closed
- wireless communication
- communication systems
- Prior art date
Links
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
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7073—Synchronisation aspects
- H04B1/7085—Synchronisation aspects using a code tracking loop, e.g. a delay-locked loop
-
- 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
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7097—Interference-related aspects
- H04B1/711—Interference-related aspects the interference being multi-path interference
- H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
-
- 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
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7097—Interference-related aspects
- H04B1/711—Interference-related aspects the interference being multi-path interference
- H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
- H04B1/7117—Selection, re-selection, allocation or re-allocation of paths to fingers, e.g. timing offset control of allocated fingers
-
- 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
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B2001/70706—Spread spectrum techniques using direct sequence modulation using a code tracking loop, e.g. a delay locked loop
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
- Error Detection And Correction (AREA)
Abstract
Se utiliza un CTL simple y robusto para seguimiento de tiempo de componentes de trayectoria múltiple de una senal de espectro ensanchado transmitida a través de un canal inalámbrico evanescente de trayectoria múltiple. Un bucle de seguimiento de código digital incluye las implementaciones de la reunificación de muestras tempranas y tardías de datos a través del uso de una secuencia de pseudo-ruido, una salida de senal de error genera por la reunificación, y el ajuste para una pluralidad de muestras a tiempo, tempranas y tardías, una velocidad de datos de una senal de control provista como una proporción fraccional de una velocidad de datos de senales de error.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US37646502P | 2002-04-29 | 2002-04-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
AR039487A1 true AR039487A1 (es) | 2005-02-23 |
Family
ID=29401351
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ARP030101484A AR039487A1 (es) | 2002-04-29 | 2003-04-29 | Circuito cerrado, simple y robusto, para rastreo digital de codigo para sistemas de comunicacion inalambrica |
ARP070104615A AR063487A2 (es) | 2002-04-29 | 2007-10-18 | Una unidad inalambrica de transmision / recepcion (wtru), una unidad movil para su uso en un sistema celular movil que comprende a dicha wtru, una estacion base que comprende a dicha wtru, y un metodo para dicha wtru |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ARP070104615A AR063487A2 (es) | 2002-04-29 | 2007-10-18 | Una unidad inalambrica de transmision / recepcion (wtru), una unidad movil para su uso en un sistema celular movil que comprende a dicha wtru, una estacion base que comprende a dicha wtru, y un metodo para dicha wtru |
Country Status (13)
Country | Link |
---|---|
US (4) | US7372892B2 (es) |
EP (2) | EP2544380A1 (es) |
JP (3) | JP3944510B2 (es) |
KR (4) | KR20090014316A (es) |
CN (2) | CN101888260A (es) |
AR (2) | AR039487A1 (es) |
AU (1) | AU2003237126A1 (es) |
CA (2) | CA2653507C (es) |
HK (1) | HK1095932A1 (es) |
MX (1) | MXPA04010412A (es) |
NO (1) | NO20044720L (es) |
TW (5) | TWI248726B (es) |
WO (1) | WO2003093929A2 (es) |
Families Citing this family (19)
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WO2005086370A1 (en) * | 2004-02-25 | 2005-09-15 | Thomson Licensing S.A. | Method and apparatus for code tracking in code division multipe access (cdma) systems |
US8107512B2 (en) * | 2004-03-08 | 2012-01-31 | Thomson Licensing | Method and apparatus for robust automatic frequency control in CDMA systems with constant pilot signals |
KR100823129B1 (ko) * | 2004-08-18 | 2008-04-21 | 삼성전자주식회사 | 이동통신 시스템의 트랙킹 장치 및 방법 |
US7561615B2 (en) * | 2005-03-18 | 2009-07-14 | Interdigital Technology Corporation | Method and apparatus for compensating for phase noise of symbols spread with a long spreading code |
KR100768103B1 (ko) * | 2005-12-08 | 2007-10-17 | 한국전자통신연구원 | 직접 시퀀스 대역 확산 방식의 무선 피코셀 통신시스템에서의 샘플 타이밍 추적 장치 및 그 방법 |
US8098707B2 (en) * | 2006-01-31 | 2012-01-17 | Regents Of The University Of Minnesota | Ultra wideband receiver |
US8130886B2 (en) * | 2008-01-09 | 2012-03-06 | Analog Devices, Inc. | Samples of bandlimited signals recovery system and method |
US8213558B2 (en) * | 2008-01-24 | 2012-07-03 | Ittiam Systems (P) Ltd. | Digital timing correction system, method and apparatus |
US8081717B2 (en) * | 2008-02-11 | 2011-12-20 | Nokia Siemens Networks Oy | Delay estimation for a timing advance loop |
TWI452840B (zh) * | 2010-03-08 | 2014-09-11 | Realtek Semiconductor Corp | 對接收訊號進行延遲鎖定迴路操作之裝置與方法 |
JP5603226B2 (ja) * | 2010-12-28 | 2014-10-08 | アンリツ株式会社 | 移動体通信端末試験装置及び移動体通信端末試験方法 |
JP5603227B2 (ja) * | 2010-12-28 | 2014-10-08 | アンリツ株式会社 | 移動体通信端末試験装置及び移動体通信端末試験方法 |
US8831158B2 (en) * | 2012-03-29 | 2014-09-09 | Broadcom Corporation | Synchronous mode tracking of multipath signals |
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EP3226427B1 (en) * | 2014-11-27 | 2019-06-26 | LG Electronics Inc. | Rake receiver and receiving method thereof |
KR101975103B1 (ko) | 2017-06-20 | 2019-05-03 | 주식회사 프로텍 | 플립칩 레이저 본딩 장치 및 플립칩 레이저 본딩 방법 |
CN110971313A (zh) * | 2018-09-12 | 2020-04-07 | 中兴通讯股份有限公司 | 一种车载tbox及其天线实时切换方法、设备及可读存储介质 |
US20230078796A1 (en) * | 2021-09-16 | 2023-03-16 | L3Harris Technologies, Inc. | Rake receiver and related methods |
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-
2003
- 2003-04-28 US US10/425,176 patent/US7372892B2/en not_active Expired - Lifetime
- 2003-04-29 TW TW092110070A patent/TWI248726B/zh not_active IP Right Cessation
- 2003-04-29 TW TW098113253A patent/TWI399931B/zh not_active IP Right Cessation
- 2003-04-29 TW TW101146755A patent/TW201345175A/zh unknown
- 2003-04-29 EP EP11188084A patent/EP2544380A1/en not_active Withdrawn
- 2003-04-29 KR KR1020097000979A patent/KR20090014316A/ko not_active Application Discontinuation
- 2003-04-29 AU AU2003237126A patent/AU2003237126A1/en not_active Abandoned
- 2003-04-29 KR KR1020107011010A patent/KR20100075651A/ko not_active Application Discontinuation
- 2003-04-29 KR KR1020057016129A patent/KR101005524B1/ko not_active IP Right Cessation
- 2003-04-29 CN CN201010230616XA patent/CN101888260A/zh active Pending
- 2003-04-29 JP JP2004502086A patent/JP3944510B2/ja not_active Expired - Fee Related
- 2003-04-29 AR ARP030101484A patent/AR039487A1/es not_active Application Discontinuation
- 2003-04-29 CN CN03809522XA patent/CN1906860B/zh not_active Expired - Fee Related
- 2003-04-29 KR KR10-2004-7017505A patent/KR20040105248A/ko not_active Application Discontinuation
- 2003-04-29 CA CA2653507A patent/CA2653507C/en not_active Expired - Fee Related
- 2003-04-29 TW TW095115510A patent/TWI324861B/zh not_active IP Right Cessation
- 2003-04-29 EP EP03736507A patent/EP1500208A4/en not_active Withdrawn
- 2003-04-29 WO PCT/US2003/013248 patent/WO2003093929A2/en active Application Filing
- 2003-04-29 CA CA002483561A patent/CA2483561C/en not_active Expired - Fee Related
- 2003-04-29 TW TW092130148A patent/TWI309926B/zh not_active IP Right Cessation
- 2003-04-29 MX MXPA04010412A patent/MXPA04010412A/es active IP Right Grant
-
2004
- 2004-11-01 NO NO20044720A patent/NO20044720L/no not_active Application Discontinuation
-
2006
- 2006-01-13 JP JP2006006266A patent/JP4072556B2/ja not_active Expired - Fee Related
-
2007
- 2007-04-03 HK HK07103617.0A patent/HK1095932A1/xx not_active IP Right Cessation
- 2007-06-11 JP JP2007154490A patent/JP2007228638A/ja not_active Ceased
- 2007-10-18 AR ARP070104615A patent/AR063487A2/es not_active Application Discontinuation
-
2008
- 2008-05-12 US US12/119,139 patent/US7715463B2/en not_active Expired - Fee Related
-
2010
- 2010-05-07 US US12/775,969 patent/US8379694B2/en not_active Expired - Lifetime
-
2012
- 2012-07-09 US US13/544,665 patent/US9525455B2/en not_active Expired - Lifetime
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