ATE417415T1 - Empfänger zur nachführung des pilot signals in der abwärtsrichtung eines cdma systems - Google Patents
Empfänger zur nachführung des pilot signals in der abwärtsrichtung eines cdma systemsInfo
- Publication number
- ATE417415T1 ATE417415T1 AT03702804T AT03702804T ATE417415T1 AT E417415 T1 ATE417415 T1 AT E417415T1 AT 03702804 T AT03702804 T AT 03702804T AT 03702804 T AT03702804 T AT 03702804T AT E417415 T1 ATE417415 T1 AT E417415T1
- Authority
- AT
- Austria
- Prior art keywords
- communication device
- base station
- pilot signals
- receiver
- tracking
- 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
-
- 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
- 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
- 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
- H04B7/022—Site diversity; Macro-diversity
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
- H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
- H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
- H04B2201/70701—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation featuring pilot assisted reception
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
- H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
- H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
- H04B2201/70702—Intercell-related aspects
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Toys (AREA)
- Fuel Cell (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/056,983 US7058116B2 (en) | 2002-01-25 | 2002-01-25 | Receiver architecture for CDMA receiver downlink |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE417415T1 true ATE417415T1 (de) | 2008-12-15 |
Family
ID=27609356
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT03702804T ATE417415T1 (de) | 2002-01-25 | 2003-01-24 | Empfänger zur nachführung des pilot signals in der abwärtsrichtung eines cdma systems |
Country Status (6)
Country | Link |
---|---|
US (2) | US7058116B2 (de) |
EP (1) | EP1470652B1 (de) |
CN (1) | CN1643803A (de) |
AT (1) | ATE417415T1 (de) |
DE (1) | DE60325169D1 (de) |
WO (1) | WO2003063373A1 (de) |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7630321B2 (en) * | 2002-09-10 | 2009-12-08 | Qualcomm Incorporated | System and method for rate assignment |
US8504054B2 (en) * | 2002-09-10 | 2013-08-06 | Qualcomm Incorporated | System and method for multilevel scheduling |
US20040081131A1 (en) | 2002-10-25 | 2004-04-29 | Walton Jay Rod | OFDM communication system with multiple OFDM symbol sizes |
US7002900B2 (en) | 2002-10-25 | 2006-02-21 | Qualcomm Incorporated | Transmit diversity processing for a multi-antenna communication system |
US8320301B2 (en) | 2002-10-25 | 2012-11-27 | Qualcomm Incorporated | MIMO WLAN system |
US8570988B2 (en) | 2002-10-25 | 2013-10-29 | Qualcomm Incorporated | Channel calibration for a time division duplexed communication system |
US7986742B2 (en) * | 2002-10-25 | 2011-07-26 | Qualcomm Incorporated | Pilots for MIMO communication system |
US8134976B2 (en) | 2002-10-25 | 2012-03-13 | Qualcomm Incorporated | Channel calibration for a time division duplexed communication system |
US8208364B2 (en) | 2002-10-25 | 2012-06-26 | Qualcomm Incorporated | MIMO system with multiple spatial multiplexing modes |
US8169944B2 (en) | 2002-10-25 | 2012-05-01 | Qualcomm Incorporated | Random access for wireless multiple-access communication systems |
US7623861B2 (en) * | 2002-12-05 | 2009-11-24 | Qualcomm Incorporated | Method and apparatus to optimize off-frequency pilot searching by wireless mobile station |
US8165148B2 (en) * | 2003-01-13 | 2012-04-24 | Qualcomm Incorporated | System and method for rate assignment |
TWI249292B (en) * | 2003-03-13 | 2006-02-11 | Interdigital Tech Corp | Wireless communication method and system for assigning multi-paths to rake receiver fingers |
US7787522B2 (en) * | 2003-04-11 | 2010-08-31 | Telefonaktiebolaget Lm Ericsson (Publ) | Joint multi-code detectors in CDMA communications system |
US7428260B2 (en) * | 2003-10-30 | 2008-09-23 | Marvell World Trade Ltd. | Unified MMSE equalization and multi-user detection approach for use in a CDMA system |
US9473269B2 (en) | 2003-12-01 | 2016-10-18 | Qualcomm Incorporated | Method and apparatus for providing an efficient control channel structure in a wireless communication system |
US7403557B2 (en) * | 2004-07-27 | 2008-07-22 | Nokia Corporation | Apparatus and method for hybrid traffic and pilot signal quality determination of finger lock status of rake receiver correlators |
US7292826B2 (en) * | 2004-07-29 | 2007-11-06 | Qualcomm Incorporated | System and method for reducing rake finger processing |
US8179834B2 (en) * | 2004-11-19 | 2012-05-15 | Samsung Electronics Co., Ltd. | Method and apparatus for adapting downlink wireless transmission between beamforming and transmit diversity on a per mobile station basis |
US7466749B2 (en) * | 2005-05-12 | 2008-12-16 | Qualcomm Incorporated | Rate selection with margin sharing |
US7865158B2 (en) * | 2005-07-26 | 2011-01-04 | Interdigital Technology Corporation | Method and apparatus for automatically correcting receiver oscillator frequency |
US20070097873A1 (en) * | 2005-10-31 | 2007-05-03 | Honeywell International Inc. | Multiple model estimation in mobile ad-hoc networks |
US20070104176A1 (en) * | 2005-11-10 | 2007-05-10 | Samsung Electronics Co., Ltd. | System and method for pilot signal utilization in an environment using dynamic frequency assignment |
US8098717B1 (en) | 2008-11-25 | 2012-01-17 | Marvell International Ltd. | Hybrid equalizer |
US9344303B1 (en) | 2012-01-04 | 2016-05-17 | Marvell International Ltd. | Adaptive signal covariance estimation for MMSE equalization |
US9008249B2 (en) * | 2012-02-10 | 2015-04-14 | Qualcomm Incorporated | Detection and filtering of an undesired narrowband signal contribution in a wireless signal receiver |
EP2713533A1 (de) * | 2012-09-26 | 2014-04-02 | ST-Ericsson SA | Mobile Telekommunikation in einem zellularen Netzwerk |
US9065686B2 (en) | 2012-11-21 | 2015-06-23 | Qualcomm Incorporated | Spur detection, cancellation and tracking in a wireless signal receiver |
US9660743B1 (en) | 2014-08-27 | 2017-05-23 | Marvell International Ltd. | Channel estimation by searching over channel response candidates having dominant components |
US10177947B2 (en) * | 2015-07-24 | 2019-01-08 | Brian G. Agee | Interference-excising diversity receiver adaptation using frame synchronous signal features and attributes |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5313489A (en) * | 1993-06-25 | 1994-05-17 | Motorola, Inc. | Signal processing in communication systems |
US6236365B1 (en) * | 1996-09-09 | 2001-05-22 | Tracbeam, Llc | Location of a mobile station using a plurality of commercial wireless infrastructures |
US5854785A (en) * | 1996-12-19 | 1998-12-29 | Motorola, Inc. | System method and wireless communication device for soft handoff |
US6073021A (en) * | 1997-05-30 | 2000-06-06 | Lucent Technologies, Inc. | Robust CDMA soft handoff |
US6038450A (en) * | 1997-09-12 | 2000-03-14 | Lucent Technologies, Inc. | Soft handover system for a multiple sub-carrier communication system and method thereof |
US6167282A (en) | 1998-06-18 | 2000-12-26 | Motorola, Inc. | Method and apparatus for updating site ranking factors in a wireless communication system |
KR100322001B1 (ko) * | 1998-09-16 | 2002-06-22 | 윤종용 | 이동통신시스템에서이동국의위치측정장치및방법 |
US6625197B1 (en) * | 1998-10-27 | 2003-09-23 | Qualcomm Incorporated | Method and apparatus for multipath demodulation in a code division multiple access communication system |
US6311075B1 (en) * | 1998-11-24 | 2001-10-30 | Northern Telecom Limited | Antenna and antenna operation method for a cellular radio communications system |
US6490461B1 (en) | 1999-06-24 | 2002-12-03 | Telefonaktiebolaget Lm Ericsson (Publ) | Power control based on combined quality estimates |
US6539006B1 (en) * | 1999-08-05 | 2003-03-25 | Ericsson Inc. | Mobile station capable of determining base station suitability |
US6671250B1 (en) * | 1999-08-17 | 2003-12-30 | Qualcomm Incorporated | Method for deep paging |
US6526090B1 (en) * | 1999-12-28 | 2003-02-25 | Texas Instruments Incorporated | Demodulation element assignment for a receiver capable of simultaneously demodulating multiple spread spectrum signals |
JP3387471B2 (ja) * | 2000-02-14 | 2003-03-17 | 日本電気株式会社 | スペクトラム拡散通信方式受信機およびスペクトラム拡散通信のパスサーチ方法 |
US6912403B2 (en) * | 2000-06-09 | 2005-06-28 | Nortel Networks Limited | Method and apparatus for fast forward-link power control and synchronization of base stations |
JP3479840B2 (ja) * | 2000-11-22 | 2003-12-15 | 日本電気株式会社 | 移動通信制御方法及びそのシステム並びに移動局 |
US6618434B2 (en) * | 2001-05-31 | 2003-09-09 | Quicksilver Technology, Inc. | Adaptive, multimode rake receiver for dynamic search and multipath reception |
US6819931B2 (en) * | 2001-07-12 | 2004-11-16 | Qualcomm Incorporated | Method and apparatus for assigning tracking elements to received signals |
JPWO2003037027A1 (ja) * | 2001-10-18 | 2005-02-17 | 富士通株式会社 | 移動通信システムおよび移動通信システムの通信方法 |
US20030114179A1 (en) * | 2001-12-17 | 2003-06-19 | D.S.P.C. Technologies Ltd. | Method and apparatus for generating a quality measure target value based on channel conditions |
US7392045B2 (en) * | 2002-01-15 | 2008-06-24 | Marvell International Ltd. | Method and apparatus for searching for a base station using an adaptable search window |
-
2002
- 2002-01-25 US US10/056,983 patent/US7058116B2/en not_active Expired - Lifetime
-
2003
- 2003-01-24 CN CNA038064863A patent/CN1643803A/zh active Pending
- 2003-01-24 DE DE60325169T patent/DE60325169D1/de not_active Expired - Lifetime
- 2003-01-24 WO PCT/IB2003/000198 patent/WO2003063373A1/en not_active Application Discontinuation
- 2003-01-24 EP EP03702804A patent/EP1470652B1/de not_active Expired - Lifetime
- 2003-01-24 AT AT03702804T patent/ATE417415T1/de not_active IP Right Cessation
-
2006
- 2006-06-06 US US11/422,550 patent/US8724597B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
WO2003063373A1 (en) | 2003-07-31 |
EP1470652B1 (de) | 2008-12-10 |
US20060209761A1 (en) | 2006-09-21 |
CN1643803A (zh) | 2005-07-20 |
US20030142732A1 (en) | 2003-07-31 |
EP1470652A1 (de) | 2004-10-27 |
DE60325169D1 (de) | 2009-01-22 |
US7058116B2 (en) | 2006-06-06 |
US8724597B2 (en) | 2014-05-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |