FI109947B - Diversititeetin yhdistäminen antenneja varten - Google Patents
Diversititeetin yhdistäminen antenneja varten Download PDFInfo
- Publication number
- FI109947B FI109947B FI964775A FI964775A FI109947B FI 109947 B FI109947 B FI 109947B FI 964775 A FI964775 A FI 964775A FI 964775 A FI964775 A FI 964775A FI 109947 B FI109947 B FI 109947B
- Authority
- FI
- Finland
- Prior art keywords
- antenna
- signals
- mobile station
- uplink
- cell
- Prior art date
Links
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
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US25329494A | 1994-06-03 | 1994-06-03 | |
US25329494 | 1994-06-03 | ||
PCT/SE1995/000622 WO1995034997A2 (en) | 1994-06-03 | 1995-05-31 | Diversity combining for antennas |
SE9500622 | 1995-05-31 |
Publications (3)
Publication Number | Publication Date |
---|---|
FI964775A0 FI964775A0 (fi) | 1996-11-29 |
FI964775A FI964775A (fi) | 1996-11-29 |
FI109947B true FI109947B (fi) | 2002-10-31 |
Family
ID=22959666
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI964775A FI109947B (fi) | 1994-06-03 | 1996-11-29 | Diversititeetin yhdistäminen antenneja varten |
Country Status (11)
Country | Link |
---|---|
US (1) | US5884192A (pt) |
EP (1) | EP0763307A2 (pt) |
JP (1) | JPH10501395A (pt) |
KR (1) | KR970703656A (pt) |
CN (1) | CN1149946A (pt) |
AU (1) | AU695327B2 (pt) |
BR (1) | BR9507800A (pt) |
CA (1) | CA2191957A1 (pt) |
FI (1) | FI109947B (pt) |
RU (1) | RU2183906C2 (pt) |
WO (1) | WO1995034997A2 (pt) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6101399A (en) * | 1995-02-22 | 2000-08-08 | The Board Of Trustees Of The Leland Stanford Jr. University | Adaptive beam forming for transmitter operation in a wireless communication system |
US7286855B2 (en) | 1995-02-22 | 2007-10-23 | The Board Of Trustees Of The Leland Stanford Jr. University | Method and apparatus for adaptive transmission beam forming in a wireless communication system |
US6006110A (en) * | 1995-02-22 | 1999-12-21 | Cisco Technology, Inc. | Wireless communication network using time-varying vector channel equalization for adaptive spatial equalization |
US6212387B1 (en) * | 1995-10-18 | 2001-04-03 | Sc-Wireless Inc. | Method and apparatus for collector arrays of directional antennas co-located with zone managers in wireless communications systems |
EP2280494A3 (en) * | 1996-04-26 | 2011-12-07 | AT & T Corp. | Method and apparatus for data transmission using multiple transmit antennas |
WO1998018271A2 (en) * | 1996-10-18 | 1998-04-30 | Watkins Johnson Company | Wireless communication network using time-varying vector channel equalization for adaptive spatial equalization |
US6052599A (en) * | 1997-01-30 | 2000-04-18 | At & T Corp. | Cellular communication system with multiple same frequency broadcasts in a cell |
FI103618B (fi) * | 1997-07-04 | 1999-07-30 | Nokia Telecommunications Oy | Vastaanotetun signaalin tulkitseminen |
US6009335A (en) * | 1997-09-26 | 1999-12-28 | Rockwell Science Center, Inc. | Method of calibrating and testing spatial nulling antenna |
US6108564A (en) * | 1997-12-31 | 2000-08-22 | Lucent Technologies, Inc. | Interference rejection by means of null-space transformations |
FR2777720B1 (fr) * | 1998-04-16 | 2000-05-26 | Alsthom Cge Alcatel | Recepteur a diversite |
US6411824B1 (en) * | 1998-06-24 | 2002-06-25 | Conexant Systems, Inc. | Polarization-adaptive antenna transmit diversity system |
US6574293B1 (en) * | 1998-10-28 | 2003-06-03 | Ericsson Inc. | Receivers and methods for reducing interference in radio communications |
WO2000036765A1 (en) * | 1998-12-15 | 2000-06-22 | Nokia Networks Oy | A receiver |
US6470192B1 (en) | 1999-08-16 | 2002-10-22 | Telefonaktiebolaget Lm Ericcson (Publ) | Method of an apparatus for beam reduction and combining in a radio communications system |
US6594475B1 (en) | 1999-09-09 | 2003-07-15 | International Business Machines Corporation | Mobile battery discharge minimization in indoor wireless networks by antenna switching |
US6115419A (en) * | 1999-10-21 | 2000-09-05 | Philips Electronics North America Corporation | Adaptive digital beamforming receiver with π/2 phase shift to improve signal reception |
EP1234468A2 (en) * | 2000-06-08 | 2002-08-28 | Remec, Inc. | Scalable sector wide area networks in wireless communication systems |
US6369758B1 (en) | 2000-11-01 | 2002-04-09 | Unique Broadband Systems, Inc. | Adaptive antenna array for mobile communication |
US20020150185A1 (en) * | 2001-03-29 | 2002-10-17 | Joseph Meehan | Diversity combiner for reception of digital television signals |
CN101159468B (zh) * | 2007-11-19 | 2012-03-21 | 北京天碁科技有限公司 | 一种基于联合检测的分集接收装置及方法 |
US8548081B2 (en) * | 2008-02-20 | 2013-10-01 | Qualcomm Incorporated | Methods and apparatus for diversity combining of repeated signals in OFDMA systems |
US8626096B2 (en) * | 2008-03-24 | 2014-01-07 | Qualcomm Incorporated | Methods and apparatus for combining signals from multiple diversity sources |
US20100067435A1 (en) * | 2008-09-18 | 2010-03-18 | Krishna Balachandran | Architecture to support network-wide multiple-in-multiple-out wireless communication over an uplink |
US8447237B2 (en) | 2010-04-12 | 2013-05-21 | Telefonaktiebolaget L M Ericsson (Publ) | Interference avoidance in white space communication systems |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3593147A (en) * | 1969-03-04 | 1971-07-13 | Itt | Equal gain diversity receiving system with squelch |
US3633107A (en) * | 1970-06-04 | 1972-01-04 | Bell Telephone Labor Inc | Adaptive signal processor for diversity radio receivers |
GB1567888A (en) * | 1977-05-02 | 1980-05-21 | Motorola Inc | Sectored antenna receiving system |
US4369520A (en) * | 1979-03-22 | 1983-01-18 | Motorola, Inc. | Instantaneously acquiring sector antenna combining system |
US4293955A (en) * | 1980-03-17 | 1981-10-06 | Telex Communications, Inc. | Diversity reception system |
US4544927A (en) * | 1982-11-04 | 1985-10-01 | Sperry Corporation | Wideband beamformer |
CA2021232C (en) * | 1989-07-17 | 1993-09-21 | Hiroyasu Muto | Diversity receiving system for use in digital radio communication with means for selecting branch by estimating propagation path property |
US5067147A (en) * | 1989-11-07 | 1991-11-19 | Pactel Corporation | Microcell system for cellular telephone system |
US5031193A (en) * | 1989-11-13 | 1991-07-09 | Motorola, Inc. | Method and apparatus for diversity reception of time-dispersed signals |
GB2244189A (en) * | 1990-05-17 | 1991-11-20 | Orbitel Mobile Communications | Space diversity receiver for mobile telephones |
DE4018044A1 (de) * | 1990-06-06 | 1991-12-12 | Philips Patentverwaltung | Empfaenger mit mindestens zwei empfangszweigen |
US5140615A (en) * | 1990-06-12 | 1992-08-18 | Motorola, Inc. | Maximal ratio diversity combining technique |
NZ239733A (en) * | 1990-09-21 | 1994-04-27 | Ericsson Ge Mobile Communicat | Mobile telephone diversity reception with predetect signal combination |
US5067173A (en) * | 1990-12-20 | 1991-11-19 | At&T Bell Laboratories | Microcellular communications system using space diversity reception |
DE4134357A1 (de) * | 1991-10-17 | 1993-04-22 | Standard Elektrik Lorenz Ag | Nachrichtenuebertragungssystem |
KR960012086B1 (ko) * | 1991-11-11 | 1996-09-12 | 모토로라 인코포레이티드 | 셀룰러 통신 시스템의 무선 통신 링크에서의 간섭을 감소시키기 위한 방법 및 장치 |
US5515378A (en) * | 1991-12-12 | 1996-05-07 | Arraycomm, Inc. | Spatial division multiple access wireless communication systems |
US5274844A (en) * | 1992-05-11 | 1993-12-28 | Motorola, Inc. | Beam pattern equalization method for an adaptive array |
US5530925A (en) * | 1993-08-02 | 1996-06-25 | Harris Corporation | Intermediate frequency combiner for a radio communication system |
EP0647983A3 (en) * | 1993-08-12 | 1995-06-28 | Northern Telecom Ltd | Antenna device for base station. |
-
1995
- 1995-05-31 BR BR9507800A patent/BR9507800A/pt not_active IP Right Cessation
- 1995-05-31 RU RU97100141/09A patent/RU2183906C2/ru active
- 1995-05-31 JP JP8502013A patent/JPH10501395A/ja active Pending
- 1995-05-31 AU AU25834/95A patent/AU695327B2/en not_active Ceased
- 1995-05-31 CN CN95193422A patent/CN1149946A/zh active Pending
- 1995-05-31 CA CA002191957A patent/CA2191957A1/en not_active Abandoned
- 1995-05-31 WO PCT/SE1995/000622 patent/WO1995034997A2/en active IP Right Grant
- 1995-05-31 EP EP95920360A patent/EP0763307A2/en not_active Withdrawn
-
1996
- 1996-11-29 FI FI964775A patent/FI109947B/fi active
- 1996-12-02 KR KR1019960706860A patent/KR970703656A/ko active IP Right Grant
-
1997
- 1997-07-08 US US08/889,808 patent/US5884192A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
FI964775A0 (fi) | 1996-11-29 |
KR970703656A (ko) | 1997-07-03 |
FI964775A (fi) | 1996-11-29 |
US5884192A (en) | 1999-03-16 |
EP0763307A2 (en) | 1997-03-19 |
WO1995034997A3 (en) | 1996-02-08 |
RU2183906C2 (ru) | 2002-06-20 |
AU695327B2 (en) | 1998-08-13 |
AU2583495A (en) | 1996-01-05 |
WO1995034997A2 (en) | 1995-12-21 |
CA2191957A1 (en) | 1995-12-21 |
JPH10501395A (ja) | 1998-02-03 |
BR9507800A (pt) | 1997-08-05 |
CN1149946A (zh) | 1997-05-14 |
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