NO20054274L - Optimalisert multibrukerdeteksjon - Google Patents
Optimalisert multibrukerdeteksjonInfo
- Publication number
- NO20054274L NO20054274L NO20054274A NO20054274A NO20054274L NO 20054274 L NO20054274 L NO 20054274L NO 20054274 A NO20054274 A NO 20054274A NO 20054274 A NO20054274 A NO 20054274A NO 20054274 L NO20054274 L NO 20054274L
- Authority
- NO
- Norway
- Prior art keywords
- matrix
- overbuilt
- codes
- user detection
- mud
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/204—Multiple access
- H04B7/216—Code division or spread-spectrum multiple access [CDMA, SSMA]
-
- 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
- H04B1/7105—Joint detection techniques, e.g. linear detectors
- H04B1/71052—Joint detection techniques, e.g. linear detectors using decorrelation matrix
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/02—Arrangements for reducing harmonics or ripples
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
-
- 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
- H04B2201/70707—Efficiency-related aspects
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Power Engineering (AREA)
- Mobile Radio Communication Systems (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Push-Button Switches (AREA)
- Information Transfer Between Computers (AREA)
- Medical Treatment And Welfare Office Work (AREA)
- Measuring And Recording Apparatus For Diagnosis (AREA)
Abstract
Multibrukerdeteksjon (MUD) ytelse er optimalisert for å eliminere redundant bruk av effekt under prosessering. En overbygd A-matrise, dvs. en systemresponsmatrise, er gitt. Den overbygde A-matrisen bruker alle mulige koder, dvs. alle koder identifisert i en kandidatkodehste (eeL) gitt ved blindkodedeteksjon (BeD). Den overbygde A-matrisen blir gitt videre til MUD som ttekker ut bare de rader eller kolonner som er krevd for koder som faktisk har blitt mottatt, som dermed eliminerer behovet for å beregne om igjen "whitening matched filter" (WMF) utganger som ikke samsvarer med den faktisk mottatte koden.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US45216203P | 2003-03-03 | 2003-03-03 | |
US10/725,808 US7031284B2 (en) | 2003-03-03 | 2003-12-02 | Wireless communication method and apparatus for optimizing multi-user detection |
PCT/US2004/006062 WO2004079977A2 (en) | 2003-03-03 | 2004-03-01 | Optimizing multi-user detection |
Publications (1)
Publication Number | Publication Date |
---|---|
NO20054274L true NO20054274L (no) | 2005-09-15 |
Family
ID=32930679
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO20054274A NO20054274L (no) | 2003-03-03 | 2005-09-15 | Optimalisert multibrukerdeteksjon |
Country Status (10)
Country | Link |
---|---|
US (2) | US7031284B2 (no) |
EP (1) | EP1602182B1 (no) |
JP (1) | JP2006519529A (no) |
KR (3) | KR20070112427A (no) |
AT (1) | ATE403288T1 (no) |
CA (1) | CA2517221A1 (no) |
DE (1) | DE602004015426D1 (no) |
MX (1) | MXPA05009431A (no) |
NO (1) | NO20054274L (no) |
WO (1) | WO2004079977A2 (no) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7218665B2 (en) * | 2003-04-25 | 2007-05-15 | Bae Systems Information And Electronic Systems Integration Inc. | Deferred decorrelating decision-feedback detector for supersaturated communications |
CN1229937C (zh) * | 2003-05-28 | 2005-11-30 | 大唐移动通信设备有限公司 | 无线通信系统中多用户码道激活检测的方法和装置 |
GB2404822B (en) * | 2003-08-07 | 2007-07-11 | Ipwireless Inc | Method and arrangement for noise variance and sir estimation |
US7599344B2 (en) * | 2004-06-08 | 2009-10-06 | Interdigital Technology Corporation | Method and apparatus for reducing multi-user processing in wireless communication systems |
CN100407589C (zh) * | 2004-12-10 | 2008-07-30 | 中兴通讯股份有限公司 | 针对串行干扰消除检测技术的基站侧用户功率控制方法 |
JP4551822B2 (ja) * | 2005-06-03 | 2010-09-29 | 株式会社東芝 | スペクトラム拡散信号復調装置、スペクトラム拡散信号復調方法、及び電波発生源可視化装置、電波発生源可視化方法 |
CN100464603C (zh) * | 2005-06-16 | 2009-02-25 | 上海原动力通信科技有限公司 | 一种采用同频组网的数字蜂窝通信系统中越区切换的方法 |
US20070076791A1 (en) * | 2005-07-26 | 2007-04-05 | Interdigital Technology Corporation | Approximate cholesky decomposition-based block linear equalizer |
US7613228B2 (en) * | 2005-08-10 | 2009-11-03 | Bae Systems Information And Electronic Systems Integration Inc. | M-Algorithm multiuser detector with correlation based pruning |
US7916841B2 (en) * | 2006-09-29 | 2011-03-29 | Mediatek Inc. | Method and apparatus for joint detection |
US9014236B2 (en) * | 2011-09-28 | 2015-04-21 | Telefonaktiebolaget L M Ericsson (Publ) | Method, apparatus, receiver, computer program and storage medium for joint detection |
CN104243095A (zh) * | 2014-09-11 | 2014-12-24 | 山东大学 | 一种卷积码与线性分组码的码字类型盲识别方法 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5703887A (en) * | 1994-12-23 | 1997-12-30 | General Instrument Corporation Of Delaware | Synchronization and error detection in a packetized data stream |
US5809043A (en) * | 1996-10-08 | 1998-09-15 | Ericsson Inc. | Method and apparatus for decoding block codes |
JP2000261412A (ja) * | 1999-03-06 | 2000-09-22 | Matsushita Electric Ind Co Ltd | 干渉信号除去装置 |
US6604222B1 (en) * | 1999-04-30 | 2003-08-05 | Rockwell Collins, Inc. | Block code to efficiently correct adjacent data and/or check bit errors |
US6233373B1 (en) * | 1999-06-21 | 2001-05-15 | The United States Of America As Represented By The Secretary Of The Navy | Optical spectrometer with improved geometry and data processing for monitoring fiber optic bragg gratings |
CA2399078C (en) * | 2000-02-04 | 2008-06-10 | Interdigital Technology Corporation | Support of multiuser detection in the downlink |
US6470047B1 (en) * | 2001-02-20 | 2002-10-22 | Comsys Communications Signal Processing Ltd. | Apparatus for and method of reducing interference in a communications receiver |
US7180881B2 (en) * | 2001-09-28 | 2007-02-20 | Interdigital Technology Corporation | Burst detector |
US6704376B2 (en) * | 2002-01-23 | 2004-03-09 | Bae Systems Information And Electronic Systems Integration Inc. | Power and confidence ordered low complexity soft turbomud with voting system |
US6782059B2 (en) * | 2002-01-31 | 2004-08-24 | Qualcomm Incorporated | Discontinuous transmission (DTX) detection |
BR0308843A (pt) * | 2002-03-25 | 2005-01-04 | Interdigital Tech Corp | Método e aparelho para detecção de códigos cegos |
US7313122B2 (en) * | 2002-07-10 | 2007-12-25 | Broadcom Corporation | Multi-user carrier frequency offset correction for CDMA systems |
-
2003
- 2003-12-02 US US10/725,808 patent/US7031284B2/en not_active Expired - Fee Related
-
2004
- 2004-03-01 KR KR1020077025078A patent/KR20070112427A/ko not_active Application Discontinuation
- 2004-03-01 DE DE602004015426T patent/DE602004015426D1/de not_active Expired - Fee Related
- 2004-03-01 MX MXPA05009431A patent/MXPA05009431A/es unknown
- 2004-03-01 WO PCT/US2004/006062 patent/WO2004079977A2/en active Application Filing
- 2004-03-01 CA CA002517221A patent/CA2517221A1/en not_active Abandoned
- 2004-03-01 EP EP04716100A patent/EP1602182B1/en not_active Expired - Lifetime
- 2004-03-01 JP JP2006501209A patent/JP2006519529A/ja active Pending
- 2004-03-01 AT AT04716100T patent/ATE403288T1/de not_active IP Right Cessation
- 2004-03-01 KR KR1020057016794A patent/KR20050104422A/ko not_active Application Discontinuation
- 2004-03-01 KR KR1020057016278A patent/KR100767653B1/ko not_active IP Right Cessation
-
2005
- 2005-09-15 NO NO20054274A patent/NO20054274L/no not_active Application Discontinuation
-
2006
- 2006-03-13 US US11/374,333 patent/US20060146763A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
US20060146763A1 (en) | 2006-07-06 |
JP2006519529A (ja) | 2006-08-24 |
US7031284B2 (en) | 2006-04-18 |
US20040174854A1 (en) | 2004-09-09 |
KR20050104422A (ko) | 2005-11-02 |
DE602004015426D1 (de) | 2008-09-11 |
EP1602182B1 (en) | 2008-07-30 |
CA2517221A1 (en) | 2004-09-16 |
KR20050108378A (ko) | 2005-11-16 |
MXPA05009431A (es) | 2005-11-23 |
EP1602182A4 (en) | 2006-06-14 |
WO2004079977A3 (en) | 2005-03-24 |
KR20070112427A (ko) | 2007-11-23 |
EP1602182A2 (en) | 2005-12-07 |
KR100767653B1 (ko) | 2007-10-17 |
WO2004079977A2 (en) | 2004-09-16 |
ATE403288T1 (de) | 2008-08-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FC2A | Withdrawal, rejection or dismissal of laid open patent application |