CA2076290A1 - Radio receiver and transmitter providing diversity - Google Patents
Radio receiver and transmitter providing diversityInfo
- Publication number
- CA2076290A1 CA2076290A1 CA002076290A CA2076290A CA2076290A1 CA 2076290 A1 CA2076290 A1 CA 2076290A1 CA 002076290 A CA002076290 A CA 002076290A CA 2076290 A CA2076290 A CA 2076290A CA 2076290 A1 CA2076290 A1 CA 2076290A1
- Authority
- CA
- Canada
- Prior art keywords
- antenna
- signals
- delay
- antennas
- signal
- 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.)
- Abandoned
Links
- 230000001066 destructive effect Effects 0.000 claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 230000010363 phase shift Effects 0.000 claims description 14
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 238000010897 surface acoustic wave method Methods 0.000 claims description 6
- 239000006185 dispersion Substances 0.000 claims description 2
- 230000004044 response Effects 0.000 claims description 2
- 230000000737 periodic effect Effects 0.000 claims 6
- 239000003623 enhancer Substances 0.000 description 12
- 230000001934 delay Effects 0.000 description 7
- 230000003111 delayed effect Effects 0.000 description 6
- 238000005562 fading Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
Classifications
-
- 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
- H04B7/0894—Space-time diversity using different delays between antennas
-
- 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
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
-
- 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
- H04B7/0667—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 of delayed versions of same signal
- H04B7/0671—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 of delayed versions of same signal using different delays between antennas
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
- H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radio Transmission System (AREA)
- Radio Relay Systems (AREA)
- Mobile Radio Communication Systems (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9119194.0 | 1991-09-07 | ||
GB9119194A GB2259430B (en) | 1991-09-07 | 1991-09-07 | Radio receiver and transmitter providing diversity |
Publications (1)
Publication Number | Publication Date |
---|---|
CA2076290A1 true CA2076290A1 (en) | 1993-03-08 |
Family
ID=10701102
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002076290A Abandoned CA2076290A1 (en) | 1991-09-07 | 1992-08-18 | Radio receiver and transmitter providing diversity |
Country Status (13)
Country | Link |
---|---|
JP (1) | JPH06169273A (ja) |
KR (1) | KR930007119A (ja) |
AU (1) | AU2098192A (ja) |
CA (1) | CA2076290A1 (ja) |
DE (1) | DE4229573A1 (ja) |
FI (1) | FI923987A (ja) |
FR (1) | FR2682838B1 (ja) |
GB (1) | GB2259430B (ja) |
HK (1) | HK1001340A1 (ja) |
IL (1) | IL102817A (ja) |
IT (1) | IT1258477B (ja) |
PL (1) | PL174158B1 (ja) |
SE (1) | SE9202541L (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012172300A1 (en) * | 2011-06-17 | 2012-12-20 | Airwave Solutions Ltd | Communications systems, apparatuses, methods and computer programs for repeating a signal with reduced intersymbol interference |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5659572A (en) * | 1993-11-22 | 1997-08-19 | Interdigital Technology Corporation | Phased array spread spectrum system and method |
US5614914A (en) * | 1994-09-06 | 1997-03-25 | Interdigital Technology Corporation | Wireless telephone distribution system with time and space diversity transmission for determining receiver location |
GB9424341D0 (en) * | 1994-12-02 | 1995-01-18 | Philips Electronics Uk Ltd | Receiver diversity |
US5579341A (en) * | 1994-12-29 | 1996-11-26 | Motorola, Inc. | Multi-channel digital transceiver and method |
AU686046B2 (en) * | 1994-12-29 | 1998-01-29 | Google Technology Holdings LLC | Multiple access digital transmitter and receiver |
GB2299488A (en) * | 1995-03-16 | 1996-10-02 | Motorola Ltd | Radio antenna arrangement |
JPH0974372A (ja) * | 1995-09-04 | 1997-03-18 | Matsushita Electric Ind Co Ltd | スペクトラム拡散無線伝送受信装置 |
DE19539312A1 (de) * | 1995-10-23 | 1997-04-24 | Grundig Emv | Verfahren zur Erhöhung der Übertragungssicherheit bei Funkalarmanlagen |
IL125118A0 (en) * | 1995-12-28 | 1999-01-26 | Qualcomm Inc | Method and apparatus for providing antenna diversity in a portable radiotelephone |
JPH10247869A (ja) | 1997-03-04 | 1998-09-14 | Nec Corp | ダイバーシティ回路 |
US5926503A (en) * | 1997-08-27 | 1999-07-20 | Motorola, Inc. | DS-CDMA receiver and forward link diversity method |
GB2332124B (en) * | 1997-12-05 | 2002-07-17 | British Broadcasting Corp | Digital radio communication system |
DE69940111D1 (de) | 1999-02-16 | 2009-01-29 | Mitsubishi Electric Corp | Funkübertragungssystem, sender und empfänger |
JP3379465B2 (ja) | 1999-03-03 | 2003-02-24 | 日本電気株式会社 | 無線通信システム及びそれに用いる基地局並びに移動機 |
DE10026538A1 (de) * | 2000-05-27 | 2001-11-29 | Deutsche Telekom Ag | Verfahren und Diversity-Empfangsvorrichtung zum Empfangen eines Mehrträger-Signals |
US6748024B2 (en) * | 2001-03-28 | 2004-06-08 | Nokia Corporation | Non-zero complex weighted space-time code for multiple antenna transmission |
JP4731055B2 (ja) * | 2001-06-29 | 2011-07-20 | パナソニック株式会社 | 無線通信装置及び無線通信方法 |
US8233555B2 (en) * | 2004-05-17 | 2012-07-31 | Qualcomm Incorporated | Time varying delay diversity of OFDM |
WO2006011424A1 (ja) * | 2004-07-28 | 2006-02-02 | Matsushita Electric Industrial Co., Ltd. | ダイバーシティ型受信装置および受信方法 |
GB2423441A (en) * | 2005-02-22 | 2006-08-23 | Cambridge Silicon Radio Ltd | Reducing signal paths required in an antenna diversity system |
GB2427338B (en) * | 2005-06-17 | 2010-01-20 | Univ Cambridge Tech | Restoring corrupted audio signals |
EP1949558B1 (en) | 2005-10-05 | 2015-01-14 | Telecom Italia S.p.A. | Method and system for multiple antenna communications, related apparatus and corresponding computer program product |
JP2010183171A (ja) | 2009-02-03 | 2010-08-19 | Toshiba Corp | 受信機 |
JP2010187188A (ja) * | 2009-02-12 | 2010-08-26 | Softbank Mobile Corp | 無線中継装置及び無線中継システム |
GB2472074B (en) * | 2009-07-24 | 2012-05-16 | Vodafone Plc | System and method utilising transmit diversity |
WO2015053110A1 (ja) * | 2013-10-10 | 2015-04-16 | ソニー株式会社 | 受信装置、受信方法、並びにプログラム |
WO2021026655A1 (en) | 2019-08-13 | 2021-02-18 | Nanowave Technologies Inc. | Transposed delay line oscillator and method |
JP7486305B2 (ja) * | 2019-11-22 | 2024-05-17 | 日本無線株式会社 | 無線受信装置 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB854720A (en) * | 1958-05-12 | 1960-11-23 | Lenkurt Electric Co Inc | Improvements in or relating to electrical diversity signalling systems |
JPS5255310A (en) * | 1975-10-30 | 1977-05-06 | Kokusai Denshin Denwa Co Ltd | Phase control circuit |
US4160952A (en) * | 1978-05-12 | 1979-07-10 | Bell Telephone Laboratories, Incorporated | Space diversity receiver with combined step and continuous phase control |
FR2628914B1 (fr) * | 1988-03-18 | 1990-06-29 | Alcatel Thomson Faisceaux | Recepteur pour systeme de transmission par voie hertzienne a diversite d'espace, comprenant un combineur de diversite |
FR2628913B1 (fr) * | 1988-03-18 | 1990-06-29 | Alcatel Thomson Faisceaux | Recepteur pour systeme de transmission par voie hertzienne a diversite d'espace |
GB2237706A (en) * | 1989-11-03 | 1991-05-08 | Racal Res Ltd | Radio communications link with diversity |
-
1991
- 1991-09-07 GB GB9119194A patent/GB2259430B/en not_active Expired - Fee Related
-
1992
- 1992-08-13 AU AU20981/92A patent/AU2098192A/en not_active Abandoned
- 1992-08-14 IL IL10281792A patent/IL102817A/en not_active IP Right Cessation
- 1992-08-18 CA CA002076290A patent/CA2076290A1/en not_active Abandoned
- 1992-09-04 JP JP4260555A patent/JPH06169273A/ja active Pending
- 1992-09-04 FI FI923987A patent/FI923987A/fi unknown
- 1992-09-04 DE DE4229573A patent/DE4229573A1/de active Pending
- 1992-09-04 SE SE9202541A patent/SE9202541L/ not_active Application Discontinuation
- 1992-09-04 IT ITRM920645A patent/IT1258477B/it active IP Right Grant
- 1992-09-07 FR FR9210640A patent/FR2682838B1/fr not_active Expired - Fee Related
- 1992-09-07 PL PL92295855A patent/PL174158B1/pl unknown
- 1992-09-07 KR KR1019920016264A patent/KR930007119A/ko not_active Application Discontinuation
-
1998
- 1998-01-16 HK HK98100370A patent/HK1001340A1/xx not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012172300A1 (en) * | 2011-06-17 | 2012-12-20 | Airwave Solutions Ltd | Communications systems, apparatuses, methods and computer programs for repeating a signal with reduced intersymbol interference |
Also Published As
Publication number | Publication date |
---|---|
AU2098192A (en) | 1993-03-11 |
FI923987A (fi) | 1993-03-08 |
KR930007119A (ko) | 1993-04-22 |
FI923987A0 (fi) | 1992-09-04 |
IT1258477B (it) | 1996-02-26 |
DE4229573A1 (de) | 1993-04-15 |
JPH06169273A (ja) | 1994-06-14 |
GB2259430A (en) | 1993-03-10 |
FR2682838B1 (fr) | 1996-07-12 |
ITRM920645A0 (it) | 1992-09-04 |
IL102817A0 (en) | 1993-02-21 |
SE9202541L (sv) | 1993-03-08 |
ITRM920645A1 (it) | 1994-03-04 |
PL295855A1 (en) | 1993-05-04 |
GB9119194D0 (en) | 1991-10-23 |
HK1001340A1 (en) | 1998-06-12 |
FR2682838A1 (fr) | 1993-04-23 |
PL174158B1 (pl) | 1998-06-30 |
SE9202541D0 (sv) | 1992-09-04 |
IL102817A (en) | 1996-01-19 |
GB2259430B (en) | 1996-05-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
FZDE | Discontinued |