ATE537612T1 - Zeitnachführung in einer unvernachlässigbaren mehrwegdistanzumgebung - Google Patents
Zeitnachführung in einer unvernachlässigbaren mehrwegdistanzumgebungInfo
- Publication number
- ATE537612T1 ATE537612T1 AT02717318T AT02717318T ATE537612T1 AT E537612 T1 ATE537612 T1 AT E537612T1 AT 02717318 T AT02717318 T AT 02717318T AT 02717318 T AT02717318 T AT 02717318T AT E537612 T1 ATE537612 T1 AT E537612T1
- Authority
- AT
- Austria
- Prior art keywords
- base station
- timing offset
- signal
- signals
- demodulating
- 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
- 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
- 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
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0667—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of delayed versions of same signal
-
- 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
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0697—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using spatial multiplexing
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radio Transmission System (AREA)
- Mobile Radio Communication Systems (AREA)
- Radar Systems Or Details Thereof (AREA)
- Noise Elimination (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US26140201P | 2001-01-11 | 2001-01-11 | |
US09/964,589 US6771692B2 (en) | 2001-01-11 | 2001-09-25 | Time tracking in a non-negligible multipath spacing environment |
PCT/US2002/000682 WO2002061963A2 (en) | 2001-01-11 | 2002-01-11 | Time tracking in a non-negligible multipath spacing environment |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE537612T1 true ATE537612T1 (de) | 2011-12-15 |
Family
ID=26948585
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT02717318T ATE537612T1 (de) | 2001-01-11 | 2002-01-11 | Zeitnachführung in einer unvernachlässigbaren mehrwegdistanzumgebung |
Country Status (10)
Country | Link |
---|---|
US (2) | US6771692B2 (de) |
EP (1) | EP1350338B1 (de) |
JP (1) | JP3974530B2 (de) |
CN (1) | CN1274094C (de) |
AT (1) | ATE537612T1 (de) |
AU (1) | AU2002248333A1 (de) |
CA (1) | CA2434116C (de) |
HK (1) | HK1063114A1 (de) |
IL (2) | IL156801A0 (de) |
WO (1) | WO2002061963A2 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100391981B1 (ko) * | 2001-06-16 | 2003-07-22 | 삼성전자주식회사 | 복수의 안테나를 통해 전송된 신호에서 데이터를 재생하는장치 |
DE10149544B4 (de) * | 2001-10-08 | 2004-11-11 | Rohde & Schwarz Gmbh & Co. Kg | Verfahren zum Ermitteln des Zeitversatzes eines CDMA-Signals und Computerprogramm zur Durchführung des Verfahrens |
US7006557B2 (en) * | 2002-01-31 | 2006-02-28 | Qualcomm Incorporated | Time tracking loop for diversity pilots |
US7154872B2 (en) * | 2002-04-26 | 2006-12-26 | Lucent Technologies Inc. | Method and system for tracking and correcting timing errors in communication systems |
US7372892B2 (en) * | 2002-04-29 | 2008-05-13 | Interdigital Technology Corporation | Simple and robust digital code tracking loop for wireless communication systems |
US7924909B2 (en) * | 2004-06-02 | 2011-04-12 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for interference cancellation in wireless receivers |
CN102281630A (zh) * | 2011-08-25 | 2011-12-14 | 江苏东大通信技术有限责任公司 | Cdma***三载频定时跟踪方法及基站定位方案 |
EP3226427B1 (de) * | 2014-11-27 | 2019-06-26 | LG Electronics Inc. | Rake-empfänger und empfangsverfahren dafür |
CN108965177B (zh) * | 2017-05-19 | 2021-06-01 | 扬智科技股份有限公司 | 信号同相正交分量交换检测方法与接收端装置 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5859874A (en) | 1994-05-09 | 1999-01-12 | Globalstar L.P. | Multipath communication system optimizer |
US5764687A (en) * | 1995-06-20 | 1998-06-09 | Qualcomm Incorporated | Mobile demodulator architecture for a spread spectrum multiple access communication system |
JPH1141141A (ja) * | 1997-05-21 | 1999-02-12 | Mitsubishi Electric Corp | スペクトル拡散信号受信方法及びスペクトル拡散信号受信装置 |
US6345078B1 (en) * | 1997-07-31 | 2002-02-05 | Lucent Technologies Inc. | Finger assignment system for a multiple finger receiver and method thereof |
US6269075B1 (en) * | 1998-01-26 | 2001-07-31 | Nokia Mobile Phones Limited | Finger assignment in a CDMA rake receiver |
US6560273B1 (en) * | 1998-10-07 | 2003-05-06 | Ericsson Inc. | Delay searcher and delay trackers interaction for new delays assignment to rake fingers |
US6154485A (en) | 1998-10-19 | 2000-11-28 | Motorola, Inc. | Receiver in a wireless communications system for receiving signals having combined orthogonal transmit diversity and adaptive array techniques |
US6873667B2 (en) | 2000-01-05 | 2005-03-29 | Texas Instruments Incorporated | Spread spectrum time tracking |
US6865218B1 (en) * | 2000-11-27 | 2005-03-08 | Ericsson Inc. | Multipath interference reduction for a CDMA system |
-
2001
- 2001-09-25 US US09/964,589 patent/US6771692B2/en not_active Expired - Lifetime
-
2002
- 2002-01-11 CA CA2434116A patent/CA2434116C/en not_active Expired - Fee Related
- 2002-01-11 IL IL15680102A patent/IL156801A0/xx unknown
- 2002-01-11 JP JP2002561383A patent/JP3974530B2/ja not_active Expired - Fee Related
- 2002-01-11 AT AT02717318T patent/ATE537612T1/de active
- 2002-01-11 CN CN02803580.1A patent/CN1274094C/zh not_active Expired - Fee Related
- 2002-01-11 AU AU2002248333A patent/AU2002248333A1/en not_active Abandoned
- 2002-01-11 EP EP02717318A patent/EP1350338B1/de not_active Expired - Lifetime
- 2002-01-11 WO PCT/US2002/000682 patent/WO2002061963A2/en active Search and Examination
-
2003
- 2003-07-06 IL IL156801A patent/IL156801A/en not_active IP Right Cessation
-
2004
- 2004-02-26 US US10/789,535 patent/US7702001B2/en not_active Expired - Fee Related
- 2004-08-06 HK HK04105862A patent/HK1063114A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
US20020126746A1 (en) | 2002-09-12 |
CA2434116C (en) | 2010-03-16 |
EP1350338A2 (de) | 2003-10-08 |
IL156801A0 (en) | 2004-02-08 |
CA2434116A1 (en) | 2002-08-08 |
US6771692B2 (en) | 2004-08-03 |
WO2002061963A3 (en) | 2002-09-19 |
CN1274094C (zh) | 2006-09-06 |
WO2002061963A2 (en) | 2002-08-08 |
US20040165655A1 (en) | 2004-08-26 |
US7702001B2 (en) | 2010-04-20 |
HK1063114A1 (en) | 2004-12-10 |
IL156801A (en) | 2009-09-22 |
CN1484894A (zh) | 2004-03-24 |
EP1350338B1 (de) | 2011-12-14 |
JP2005501437A (ja) | 2005-01-13 |
AU2002248333A1 (en) | 2002-08-12 |
JP3974530B2 (ja) | 2007-09-12 |
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