WO2002017508A3 - Digital receiver and method for symbol detection in a spread spectrum signal - Google Patents
Digital receiver and method for symbol detection in a spread spectrum signal Download PDFInfo
- Publication number
- WO2002017508A3 WO2002017508A3 PCT/JP2001/007118 JP0107118W WO0217508A3 WO 2002017508 A3 WO2002017508 A3 WO 2002017508A3 JP 0107118 W JP0107118 W JP 0107118W WO 0217508 A3 WO0217508 A3 WO 0217508A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- digital receiver
- spread spectrum
- spectrum signal
- symbol detection
- 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
- H04B1/7103—Interference-related aspects the interference being multiple access interference
- H04B1/7107—Subtractive interference cancellation
- H04B1/71075—Parallel interference cancellation
-
- 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
- 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
- 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
- H04B7/06—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
-
- 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
- H04B7/0845—Weighted combining per branch equalization, e.g. by an FIR-filter or RAKE receiver per antenna branch
-
- 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
- H04B7/0857—Joint weighting using maximum ratio combining techniques, e.g. signal-to- interference ratio [SIR], received signal strenght indication [RSS]
-
- 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
- H04B7/0891—Space-time diversity
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radio Transmission System (AREA)
- Mobile Radio Communication Systems (AREA)
- Noise Elimination (AREA)
Abstract
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002522083A JP2004507925A (en) | 2000-08-22 | 2001-08-20 | Digital receiver and method for detecting symbols in baseband signal |
EP01956970A EP1230743A2 (en) | 2000-08-22 | 2001-08-20 | Digital receiver and method for symbol detection in a spread spectrum signal |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/643,278 US6839379B1 (en) | 2000-01-19 | 2000-08-22 | Adaptive DS-CDMA multi-user receiver with diversity combining for interference cancellation |
US09/643,278 | 2000-08-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2002017508A2 WO2002017508A2 (en) | 2002-02-28 |
WO2002017508A3 true WO2002017508A3 (en) | 2002-05-30 |
Family
ID=24580112
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2001/007118 WO2002017508A2 (en) | 2000-08-22 | 2001-08-20 | Digital receiver and method for symbol detection in a spread spectrum signal |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1230743A2 (en) |
JP (1) | JP2004507925A (en) |
CN (1) | CN1419749A (en) |
WO (1) | WO2002017508A2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7386057B2 (en) * | 2003-02-20 | 2008-06-10 | Nec Corporation | Iterative soft interference cancellation and filtering for spectrally efficient high-speed transmission in MIMO systems |
US9497733B2 (en) * | 2013-02-13 | 2016-11-15 | Qualcomm Incorporated | Single-frequency network (SFN) operation for machine-type communications (MTC) coverage enhancements |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0806844A1 (en) * | 1995-11-29 | 1997-11-12 | Ntt Mobile Communications Network Inc. | Diversity receiver and control method therefor |
WO2000016494A1 (en) * | 1998-09-14 | 2000-03-23 | Nokia Networks Oy | Rake receiver |
WO2001059937A2 (en) * | 2000-01-26 | 2001-08-16 | Qualcomm Incorporated | Multipath doppler-adjusted frequency tracking loop |
-
2001
- 2001-08-20 JP JP2002522083A patent/JP2004507925A/en not_active Withdrawn
- 2001-08-20 WO PCT/JP2001/007118 patent/WO2002017508A2/en not_active Application Discontinuation
- 2001-08-20 CN CN 01802489 patent/CN1419749A/en active Pending
- 2001-08-20 EP EP01956970A patent/EP1230743A2/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0806844A1 (en) * | 1995-11-29 | 1997-11-12 | Ntt Mobile Communications Network Inc. | Diversity receiver and control method therefor |
WO2000016494A1 (en) * | 1998-09-14 | 2000-03-23 | Nokia Networks Oy | Rake receiver |
WO2001059937A2 (en) * | 2000-01-26 | 2001-08-16 | Qualcomm Incorporated | Multipath doppler-adjusted frequency tracking loop |
Non-Patent Citations (1)
Title |
---|
SAYEED A M ET AL: "JOINT MULTIPATH-DOPPLER DIVERSITY IN MOBILE WIRELESS COMMUNICATIONS", IEEE TRANSACTIONS ON COMMUNICATIONS, IEEE INC. NEW YORK, US, VOL. 47, NR. 1, PAGE(S) 123-132, ISSN: 0090-6778, XP000802436 * |
Also Published As
Publication number | Publication date |
---|---|
EP1230743A2 (en) | 2002-08-14 |
CN1419749A (en) | 2003-05-21 |
JP2004507925A (en) | 2004-03-11 |
WO2002017508A2 (en) | 2002-02-28 |
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