DE60003894D1 - Anpassbares filter für einen direktsequenz spreizspektrumempfänger - Google Patents
Anpassbares filter für einen direktsequenz spreizspektrumempfängerInfo
- Publication number
- DE60003894D1 DE60003894D1 DE60003894T DE60003894T DE60003894D1 DE 60003894 D1 DE60003894 D1 DE 60003894D1 DE 60003894 T DE60003894 T DE 60003894T DE 60003894 T DE60003894 T DE 60003894T DE 60003894 D1 DE60003894 D1 DE 60003894D1
- Authority
- DE
- Germany
- Prior art keywords
- algorithm
- direct sequence
- spread spectrum
- sequence spread
- adjustable filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
- H04L25/03019—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception
- H04L25/03038—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a non-recursive structure
-
- 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
- H04B1/7103—Interference-related aspects the interference being multiple access interference
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
- H04L2025/03375—Passband transmission
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L2025/03433—Arrangements for removing intersymbol interference characterised by equaliser structure
- H04L2025/03439—Fixed structures
- H04L2025/03445—Time domain
- H04L2025/03471—Tapped delay lines
- H04L2025/03477—Tapped delay lines not time-recursive
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L2025/03592—Adaptation methods
- H04L2025/03598—Algorithms
- H04L2025/03611—Iterative algorithms
- H04L2025/03617—Time recursive algorithms
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Filters That Use Time-Delay Elements (AREA)
- Noise Elimination (AREA)
- Exchange Systems With Centralized Control (AREA)
- Structure Of Receivers (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9904421 | 1999-02-25 | ||
GBGB9904421.6A GB9904421D0 (en) | 1999-02-25 | 1999-02-25 | Telecommunications receiver |
PCT/GB2000/000649 WO2000051260A1 (en) | 1999-02-25 | 2000-02-23 | Adaptive filter for a direct sequence spread spectrum receiver |
Publications (2)
Publication Number | Publication Date |
---|---|
DE60003894D1 true DE60003894D1 (de) | 2003-08-21 |
DE60003894T2 DE60003894T2 (de) | 2004-07-08 |
Family
ID=10848538
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE60003894T Expired - Lifetime DE60003894T2 (de) | 1999-02-25 | 2000-02-23 | Anpassbares filter für einen direktsequenz spreizspektrumempfänger |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1155509B1 (de) |
JP (1) | JP2002538659A (de) |
AT (1) | ATE245319T1 (de) |
DE (1) | DE60003894T2 (de) |
GB (1) | GB9904421D0 (de) |
WO (1) | WO2000051260A1 (de) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6925127B1 (en) | 1997-07-22 | 2005-08-02 | Ericsson Inc. | Method and apparatus for subtracting multiple rays of multiple interfering received signals |
US6522683B1 (en) * | 2000-08-10 | 2003-02-18 | Qualcomm, Incorporated | Method and apparatus for adaptive linear equalization for walsh covered modulation |
AU2001288995A1 (en) * | 2000-10-06 | 2002-04-22 | Ericsson Inc. | Method and apparatus for subtracting multiple rays of multiple interfering received signals |
US7110440B2 (en) | 2001-03-14 | 2006-09-19 | Mercury Computer Systems, Inc. | Wireless communications systems and methods for multiple processor based multiple user detection |
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 |
CN1533662B (zh) * | 2001-07-26 | 2010-12-08 | 剑桥宽带网络有限公司 | 用于预失真数据的方法和装置 |
US6956893B2 (en) * | 2001-08-20 | 2005-10-18 | Motorola, Inc. | Linear minimum mean square error equalization with interference cancellation for mobile communication forward links utilizing orthogonal codes covered by long pseudorandom spreading codes |
US7301993B2 (en) * | 2002-09-13 | 2007-11-27 | Broadcom Corporation | Channel estimation in a spread spectrum receiver |
US7535955B1 (en) | 2003-03-25 | 2009-05-19 | Marvell International Ltd. | Methods, algorithms, software, architectures, systems and circuitry for adaptive filtering and/or minimizing a sequence detector error rate |
CA2536918A1 (en) | 2003-08-26 | 2005-03-03 | Leland Shapiro | Compositions of, and methods for, alpha-1 antitrypsin fc fusion molecules |
US7397849B2 (en) * | 2005-03-18 | 2008-07-08 | Interdigital Technology Corporation | Channel estimation enhanced LMS equalizer |
US8743848B2 (en) | 2009-05-26 | 2014-06-03 | Broadcom Corporation | Hybrid location determination for wireless communication device |
US8229041B2 (en) | 2009-05-26 | 2012-07-24 | Broadcom Corporation | Direct detection of wireless interferers in a communication device for multiple modulation types |
US8254343B2 (en) * | 2009-12-23 | 2012-08-28 | Intel Corporation | Multi-radio platform and method for mitigating interference between co-located radios |
AU2012272636A1 (en) | 2011-06-24 | 2013-05-02 | Advent Bio Holdings Llc | Compositions, methods and uses for alpha-1 antitrypsin fusion molecules |
AU2013202648B2 (en) | 2012-01-10 | 2016-05-19 | Konkuk University | Compositions, methods and uses for alpha-1 antitrypsin fusion molecules |
US20140003470A1 (en) * | 2012-06-27 | 2014-01-02 | Qualcomm Incorporated | Unified receiver for multi-user detection |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69428440D1 (de) * | 1993-06-04 | 2001-10-31 | Motorola Inc | Kommunikationsverfahren für ein adaptives direktsequenz-cdma-kommunikationsystem |
US5692006A (en) * | 1995-07-31 | 1997-11-25 | Qualcomm Incorporated | Adaptive despreader |
-
1999
- 1999-02-25 GB GBGB9904421.6A patent/GB9904421D0/en not_active Ceased
-
2000
- 2000-02-23 JP JP2000601761A patent/JP2002538659A/ja active Pending
- 2000-02-23 EP EP00905206A patent/EP1155509B1/de not_active Expired - Lifetime
- 2000-02-23 WO PCT/GB2000/000649 patent/WO2000051260A1/en active IP Right Grant
- 2000-02-23 AT AT00905206T patent/ATE245319T1/de not_active IP Right Cessation
- 2000-02-23 DE DE60003894T patent/DE60003894T2/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
WO2000051260A1 (en) | 2000-08-31 |
EP1155509B1 (de) | 2003-07-16 |
GB9904421D0 (en) | 1999-04-21 |
ATE245319T1 (de) | 2003-08-15 |
JP2002538659A (ja) | 2002-11-12 |
EP1155509A1 (de) | 2001-11-21 |
DE60003894T2 (de) | 2004-07-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8332 | No legal effect for de | ||
8370 | Indication related to discontinuation of the patent is to be deleted | ||
8364 | No opposition during term of opposition |