NO20061886L - Rakebasert CDMA mottaker for multiveiantenner - Google Patents
Rakebasert CDMA mottaker for multiveiantennerInfo
- Publication number
- NO20061886L NO20061886L NO20061886A NO20061886A NO20061886L NO 20061886 L NO20061886 L NO 20061886L NO 20061886 A NO20061886 A NO 20061886A NO 20061886 A NO20061886 A NO 20061886A NO 20061886 L NO20061886 L NO 20061886L
- Authority
- NO
- Norway
- Prior art keywords
- rake
- directional antennas
- weight gain
- antenna element
- cdma receiver
- 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
- H04B1/7097—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
- H04B1/712—Weighting of fingers for combining, e.g. amplitude control or phase rotation using an inner loop
-
- 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
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
-
- 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
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
- H04B7/0842—Weighted combining
- H04B7/0848—Joint weighting
- H04B7/0854—Joint weighting using error minimizing algorithms, e.g. minimum mean squared error [MMSE], "cross-correlation" or matrix inversion
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
- Noise Elimination (AREA)
- Circuits Of Receivers In General (AREA)
Abstract
En mottaker innbefatter et flertall av antenneelementer for å ta imot et datasignal. Hvert antenneelement har et flertall av rakefingere. Hver rakefinger prosesserer en mottatt flerveiskomponent i det mottatte datasignalet fra sitt antenneelement ved å anvende en kompleks vektforsterkning på denne mottatte flerveiskomponenten. En kompleks vektforsterkningsgenerator bestemmer den komplekse vektforsterkning for hver rakefinger for hvert antenneelement ved å bruke en inngang fra alle rakefingrene. En summerer kombinerer en utgang fra hver rakefinger for å produsere et estimat av datasignaler.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US50787403P | 2003-09-30 | 2003-09-30 | |
US10/725,788 US7106780B2 (en) | 2003-09-30 | 2003-12-02 | Rake-based CDMA receivers for multiple receiver antennas |
PCT/US2004/028402 WO2005034404A2 (en) | 2003-09-30 | 2004-09-01 | Rake-based cdma receivers for multiple receiver antennas |
Publications (1)
Publication Number | Publication Date |
---|---|
NO20061886L true NO20061886L (no) | 2006-06-23 |
Family
ID=34381377
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO20061886A NO20061886L (no) | 2003-09-30 | 2006-04-27 | Rakebasert CDMA mottaker for multiveiantenner |
Country Status (10)
Country | Link |
---|---|
US (1) | US7106780B2 (no) |
EP (1) | EP1676382A4 (no) |
JP (1) | JP2007507977A (no) |
KR (2) | KR20060060751A (no) |
CN (1) | CN1883142A (no) |
CA (1) | CA2540381A1 (no) |
MX (1) | MXPA06003491A (no) |
NO (1) | NO20061886L (no) |
TW (2) | TW200614698A (no) |
WO (1) | WO2005034404A2 (no) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7391832B2 (en) * | 2003-03-17 | 2008-06-24 | Broadcom Corporation | System and method for channel bonding in multiple antenna communication systems |
US8185075B2 (en) * | 2003-03-17 | 2012-05-22 | Broadcom Corporation | System and method for channel bonding in multiple antenna communication systems |
SG124304A1 (en) * | 2005-01-20 | 2006-08-30 | St Microelectronics Asia | Method and system for adaptive channel estimation in pilot symbol assisted modulation systems |
IL173069A0 (en) * | 2006-01-10 | 2006-06-11 | Zion Hadad Dr | Cellular system and method |
US7830952B2 (en) * | 2006-02-13 | 2010-11-09 | Telefonaktiebolaget L M Ericsson (Publ) | Reduced complexity interference suppression for wireless communications |
US8374220B2 (en) * | 2006-05-29 | 2013-02-12 | St-Ericsson Sa | Low-cost and low-complexity inner communication receiver for receive diversity |
GB2442263B (en) * | 2006-09-26 | 2011-03-09 | Iti Scotland Ltd | Uwb apparatus and method |
US7643429B2 (en) * | 2006-11-06 | 2010-01-05 | Fujitsu Limited | Interference measuring and mapping method and apparatus for wireless networks using relay stations |
US7877097B2 (en) * | 2006-11-06 | 2011-01-25 | Fujitsu Limited | Reuse pattern network scheduling using interference levels |
US20080171551A1 (en) * | 2007-01-11 | 2008-07-17 | Fujitsu Limited | Reuse pattern network scheduling using load levels |
US8428175B2 (en) | 2007-03-09 | 2013-04-23 | Qualcomm Incorporated | Quadrature modulation rotating training sequence |
US8290083B2 (en) | 2007-03-09 | 2012-10-16 | Qualcomm Incorporated | Quadrature imbalance mitigation using unbiased training sequences |
US8064550B2 (en) | 2007-03-09 | 2011-11-22 | Qualcomm, Incorporated | Quadrature imbalance estimation using unbiased training sequences |
GB0814252D0 (en) * | 2008-08-04 | 2008-09-10 | Cambridge Silicon Radio Ltd | Receiving imperfectly phase compensated signals |
CN102195668B (zh) * | 2010-03-12 | 2015-08-05 | 上海摩波彼克半导体有限公司 | 移动通信系统中耙型接收器性能提升的耙指配置管理方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030186725A1 (en) * | 1997-03-18 | 2003-10-02 | Matsushita Electric Industrial Co., Ltd. | Calibration apparatus for array antenna radio receiving apparatus |
US6304750B1 (en) * | 1998-11-06 | 2001-10-16 | Lucent Technologies Inc. | Space-time diversity receiver for wireless systems |
US6442193B1 (en) | 1999-03-30 | 2002-08-27 | Koninklijke Philips Electronics N.V. | Combining sub-chip resolution samples in arms of a spread-spectrum rake receiver |
KR100383669B1 (ko) * | 2000-10-12 | 2003-05-14 | 한국전자통신연구원 | 배열 안테나를 이용하는 코드분할다중접속 기지국시스템의 동기 획득장치 및 방법 |
GB0028392D0 (en) | 2000-11-22 | 2001-01-03 | Koninkl Philips Electronics Nv | A rake receiver |
JP4531969B2 (ja) * | 2000-12-21 | 2010-08-25 | 三菱電機株式会社 | アダプティブアンテナ受信装置 |
JP3601598B2 (ja) * | 2001-05-11 | 2004-12-15 | 日本電気株式会社 | 適応アンテナ受信装置 |
US7170924B2 (en) * | 2001-05-17 | 2007-01-30 | Qualcomm, Inc. | System and method for adjusting combiner weights using an adaptive algorithm in wireless communications system |
US20040170218A1 (en) * | 2003-03-01 | 2004-09-02 | Andreas Molisch | Rake receiver for ultra wide bandwidth communications systems |
-
2003
- 2003-12-02 US US10/725,788 patent/US7106780B2/en not_active Expired - Fee Related
-
2004
- 2004-09-01 WO PCT/US2004/028402 patent/WO2005034404A2/en active Search and Examination
- 2004-09-01 JP JP2006533866A patent/JP2007507977A/ja not_active Withdrawn
- 2004-09-01 MX MXPA06003491A patent/MXPA06003491A/es not_active Application Discontinuation
- 2004-09-01 CA CA002540381A patent/CA2540381A1/en not_active Abandoned
- 2004-09-01 EP EP04782818A patent/EP1676382A4/en not_active Withdrawn
- 2004-09-01 KR KR1020067009061A patent/KR20060060751A/ko not_active Application Discontinuation
- 2004-09-01 KR KR1020067008171A patent/KR100818465B1/ko not_active IP Right Cessation
- 2004-09-01 CN CNA2004800290371A patent/CN1883142A/zh active Pending
- 2004-09-02 TW TW094108525A patent/TW200614698A/zh unknown
- 2004-09-02 TW TW093126583A patent/TWI261976B/zh not_active IP Right Cessation
-
2006
- 2006-04-27 NO NO20061886A patent/NO20061886L/no not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
US7106780B2 (en) | 2006-09-12 |
KR20060057650A (ko) | 2006-05-26 |
EP1676382A4 (en) | 2009-04-08 |
US20050069024A1 (en) | 2005-03-31 |
KR20060060751A (ko) | 2006-06-05 |
CN1883142A (zh) | 2006-12-20 |
MXPA06003491A (es) | 2006-06-08 |
EP1676382A2 (en) | 2006-07-05 |
KR100818465B1 (ko) | 2008-04-03 |
TW200513050A (en) | 2005-04-01 |
CA2540381A1 (en) | 2005-04-14 |
WO2005034404A3 (en) | 2006-03-16 |
WO2005034404A2 (en) | 2005-04-14 |
TW200614698A (en) | 2006-05-01 |
TWI261976B (en) | 2006-09-11 |
JP2007507977A (ja) | 2007-03-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FC2A | Withdrawal, rejection or dismissal of laid open patent application |