WO2000069090A1 - System and method for providing an accurate estimation of received signal interference for use in wireless communications systems - Google Patents
System and method for providing an accurate estimation of received signal interference for use in wireless communications systems Download PDFInfo
- Publication number
- WO2000069090A1 WO2000069090A1 PCT/US2000/012779 US0012779W WO0069090A1 WO 2000069090 A1 WO2000069090 A1 WO 2000069090A1 US 0012779 W US0012779 W US 0012779W WO 0069090 A1 WO0069090 A1 WO 0069090A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- signal
- interference
- estimate
- circuit
- component
- 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
- H04B1/7113—Determination of path profile
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
- H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
- H04L27/38—Demodulator circuits; Receiver circuits
-
- 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
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/336—Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]
-
- 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
- H04L25/06—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection
- H04L25/067—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection providing soft decisions, i.e. decisions together with an estimate of reliability
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
- H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Noise Elimination (AREA)
- Mobile Radio Communication Systems (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR0010420-5A BR0010420A (en) | 1999-05-11 | 2000-05-09 | System and method for providing an accurate estimate of incoming signal interference for use in wireless communications systems |
JP2000617575A JP5198697B2 (en) | 1999-05-11 | 2000-05-09 | System and method for providing accurate estimation of received signal interference for a wireless communication system |
EP00932256A EP1177640B1 (en) | 1999-05-11 | 2000-05-09 | System and method for providing an accurate estimation of received signal interference for use in wireless communications systems |
AU49999/00A AU4999900A (en) | 1999-05-11 | 2000-05-09 | System and method for providing an accurate estimation of received signal interference for use in wireless communications systems |
DE60034669T DE60034669T2 (en) | 1999-05-11 | 2000-05-09 | SYSTEM AND METHOD FOR PRODUCING AN ACCURATE ESTIMATION OF RECEIVED SIGNAL INTERFERENCE FOR CORDLESS COMMUNICATION SYSTEMS |
HK02105491.1A HK1043891B (en) | 1999-05-11 | 2002-07-25 | System and method for providing an accurate estimation of received signal interference for use in wireless communications systems |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/310,053 | 1999-05-11 | ||
US09/310,053 US6661832B1 (en) | 1999-05-11 | 1999-05-11 | System and method for providing an accurate estimation of received signal interference for use in wireless communications systems |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000069090A1 true WO2000069090A1 (en) | 2000-11-16 |
Family
ID=23200803
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2000/012779 WO2000069090A1 (en) | 1999-05-11 | 2000-05-09 | System and method for providing an accurate estimation of received signal interference for use in wireless communications systems |
Country Status (12)
Country | Link |
---|---|
US (2) | US6661832B1 (en) |
EP (2) | EP1783922B1 (en) |
JP (4) | JP5198697B2 (en) |
KR (1) | KR100858208B1 (en) |
CN (1) | CN1160872C (en) |
AT (1) | ATE361588T1 (en) |
AU (1) | AU4999900A (en) |
BR (1) | BR0010420A (en) |
DE (1) | DE60034669T2 (en) |
HK (1) | HK1043891B (en) |
TW (1) | TW462150B (en) |
WO (1) | WO2000069090A1 (en) |
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-
1999
- 1999-05-11 US US09/310,053 patent/US6661832B1/en not_active Expired - Lifetime
-
2000
- 2000-05-09 AU AU49999/00A patent/AU4999900A/en not_active Abandoned
- 2000-05-09 EP EP07002968.1A patent/EP1783922B1/en not_active Expired - Lifetime
- 2000-05-09 AT AT00932256T patent/ATE361588T1/en not_active IP Right Cessation
- 2000-05-09 DE DE60034669T patent/DE60034669T2/en not_active Expired - Lifetime
- 2000-05-09 CN CNB008073368A patent/CN1160872C/en not_active Expired - Lifetime
- 2000-05-09 KR KR1020017014260A patent/KR100858208B1/en active IP Right Grant
- 2000-05-09 BR BR0010420-5A patent/BR0010420A/en not_active IP Right Cessation
- 2000-05-09 WO PCT/US2000/012779 patent/WO2000069090A1/en active IP Right Grant
- 2000-05-09 JP JP2000617575A patent/JP5198697B2/en not_active Expired - Lifetime
- 2000-05-09 EP EP00932256A patent/EP1177640B1/en not_active Expired - Lifetime
- 2000-05-10 TW TW089108919A patent/TW462150B/en not_active IP Right Cessation
-
2002
- 2002-07-25 HK HK02105491.1A patent/HK1043891B/en not_active IP Right Cessation
-
2003
- 2003-10-08 US US10/682,047 patent/US6975671B2/en not_active Expired - Lifetime
-
2010
- 2010-09-22 JP JP2010212308A patent/JP5323791B2/en not_active Expired - Lifetime
-
2012
- 2012-10-31 JP JP2012240140A patent/JP2013070386A/en active Pending
-
2013
- 2013-12-27 JP JP2013271637A patent/JP5738971B2/en not_active Expired - Lifetime
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AU751260B2 (en) * | 1998-09-30 | 2002-08-08 | Nec Corporation | Method of providing hysteresis in detection of path timing by multiplying delay profile by weighting coefficient |
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CN1708927B (en) * | 2002-10-29 | 2013-07-10 | 高通股份有限公司 | Channel estimation method and device for OFDM communication systems |
DE10258462A1 (en) * | 2002-12-13 | 2004-07-15 | Infineon Technologies Ag | Hardware support for the SINR calculation and the calculation of standardization factors for demodulated symbols in UMTS mobile stations |
GB2401004A (en) * | 2003-04-22 | 2004-10-27 | Toshiba Res Europ Ltd | Weighing signals according to estimated interference before combination in a rake receiver. |
GB2401004B (en) * | 2003-04-22 | 2007-01-17 | Toshiba Res Europ Ltd | Rake receiver |
US6917904B1 (en) | 2004-01-12 | 2005-07-12 | Telefonaktiebolaget L M Ericsson (Publ) | Method of and apparatus for path-searcher window positioning |
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Also Published As
Publication number | Publication date |
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DE60034669T2 (en) | 2008-01-10 |
JP2002544708A (en) | 2002-12-24 |
EP1177640B1 (en) | 2007-05-02 |
TW462150B (en) | 2001-11-01 |
ATE361588T1 (en) | 2007-05-15 |
US20040091025A1 (en) | 2004-05-13 |
EP1783922B1 (en) | 2013-11-20 |
BR0010420A (en) | 2002-04-30 |
KR100858208B1 (en) | 2008-09-10 |
JP2013070386A (en) | 2013-04-18 |
CN1350724A (en) | 2002-05-22 |
JP2014135722A (en) | 2014-07-24 |
JP5738971B2 (en) | 2015-06-24 |
JP5198697B2 (en) | 2013-05-15 |
JP2011055508A (en) | 2011-03-17 |
US6975671B2 (en) | 2005-12-13 |
KR20020012570A (en) | 2002-02-16 |
HK1043891B (en) | 2005-04-22 |
US6661832B1 (en) | 2003-12-09 |
EP1783922A3 (en) | 2009-07-15 |
EP1783922A2 (en) | 2007-05-09 |
JP5323791B2 (en) | 2013-10-23 |
AU4999900A (en) | 2000-11-21 |
HK1043891A1 (en) | 2002-09-27 |
CN1160872C (en) | 2004-08-04 |
DE60034669D1 (en) | 2007-06-14 |
EP1177640A1 (en) | 2002-02-06 |
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