WO1992010890A1 - Cdma microcellular telephone system and distributed antenna system therefor - Google Patents
Cdma microcellular telephone system and distributed antenna system therefor Download PDFInfo
- Publication number
- WO1992010890A1 WO1992010890A1 PCT/US1991/009295 US9109295W WO9210890A1 WO 1992010890 A1 WO1992010890 A1 WO 1992010890A1 US 9109295 W US9109295 W US 9109295W WO 9210890 A1 WO9210890 A1 WO 9210890A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- antennas
- cdma
- signal
- antenna
- signals
- Prior art date
Links
- 238000004891 communication Methods 0.000 claims abstract description 48
- 230000001413 cellular effect Effects 0.000 claims abstract description 36
- 230000005540 biological transmission Effects 0.000 claims description 29
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000005855 radiation Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 71
- 230000006870 function Effects 0.000 description 32
- 238000005562 fading Methods 0.000 description 28
- 238000001228 spectrum Methods 0.000 description 26
- 238000012545 processing Methods 0.000 description 20
- 239000000969 carrier Substances 0.000 description 17
- 230000008569 process Effects 0.000 description 16
- 238000013461 design Methods 0.000 description 12
- 230000011664 signaling Effects 0.000 description 10
- 230000008901 benefit Effects 0.000 description 9
- 230000001934 delay Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 9
- 238000012937 correction Methods 0.000 description 8
- 230000007480 spreading Effects 0.000 description 8
- 230000001427 coherent effect Effects 0.000 description 5
- 230000003111 delayed effect Effects 0.000 description 5
- 238000001514 detection method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000001914 filtration Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 230000000116 mitigating effect Effects 0.000 description 5
- 230000003321 amplification Effects 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 238000003199 nucleic acid amplification method Methods 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 238000013459 approach Methods 0.000 description 3
- 230000003595 spectral effect Effects 0.000 description 3
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- 230000002411 adverse Effects 0.000 description 2
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- 238000009432 framing Methods 0.000 description 2
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- 230000002441 reversible effect Effects 0.000 description 2
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- 230000003190 augmentative effect Effects 0.000 description 1
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- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
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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
- H04B7/0837—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
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/29—Combinations of different interacting antenna units for giving a desired directional characteristic
-
- 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
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
- H04B7/2628—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
- H04B7/2643—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
- H04W88/085—Access point devices with remote components
-
- 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
- H04B7/022—Site diversity; Macro-diversity
-
- 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
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/16—Performing reselection for specific purposes
- H04W36/18—Performing reselection for specific purposes for allowing seamless reselection, e.g. soft reselection
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Near-Field Transmission Systems (AREA)
Abstract
Description
Claims
Priority Applications (12)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50286392A JP3325890B2 (en) | 1990-12-07 | 1991-12-06 | CDMA microcellular telephone system and distribution antenna system |
AU91386/91A AU652602B2 (en) | 1990-12-07 | 1991-12-06 | CDMA microcellular telephone system and distributed antenna system therefor |
CA002097066A CA2097066C (en) | 1990-12-07 | 1991-12-06 | Cdma microcellular telephone system and distributed antenna system therefor |
BR919107213A BR9107213A (en) | 1990-12-07 | 1991-12-06 | ANTENNA SYSTEM, BASE STATION, LOCAL COMMUNICATIONS SYSTEM AND PROCESS TO CREATE MULTIPLE PROPAGACIONS OF TRANSMITTED CDMA SIGNALS |
CS931097A CZ282725B6 (en) | 1990-12-07 | 1991-12-06 | Communication equipment for code division multiple access communication |
RU93043671A RU2111619C1 (en) | 1990-12-07 | 1991-12-06 | Code division multiple access communication system, base station communication system for connection to remote users, local communication system and method for generation of multiple-beam of code division multiple access signals in communication system |
KR1019930701741A KR970000790B1 (en) | 1990-12-07 | 1991-12-06 | Cdma microcellular telephone system & distributed antenna system therefor |
RO93-00776A RO119761B1 (en) | 1990-12-07 | 1991-12-06 | Code division multiple access communication system (cdma) |
SK571-93A SK280276B6 (en) | 1990-12-07 | 1991-12-06 | Code division multiple access communication system |
BG97842A BG61052B1 (en) | 1990-12-07 | 1993-06-02 | Communication microcellular telephone system for multistation access having code separated channels and a distribution aerial system to it |
FI932523A FI111306B (en) | 1990-12-07 | 1993-06-02 | CDMA microcellular telephone system and its distributed antenna system |
NO19932041A NO316199B1 (en) | 1990-12-07 | 1993-06-04 | CDMA telephone system for microcell type communications networks and associated antenna distribution system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US62411890A | 1990-12-07 | 1990-12-07 | |
US624,118 | 1990-12-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1992010890A1 true WO1992010890A1 (en) | 1992-06-25 |
Family
ID=24500729
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1991/009295 WO1992010890A1 (en) | 1990-12-07 | 1991-12-06 | Cdma microcellular telephone system and distributed antenna system therefor |
Country Status (17)
Country | Link |
---|---|
US (1) | US5280472A (en) |
JP (1) | JP3325890B2 (en) |
KR (1) | KR970000790B1 (en) |
AU (1) | AU652602B2 (en) |
BG (1) | BG61052B1 (en) |
BR (1) | BR9107213A (en) |
CA (1) | CA2097066C (en) |
CZ (1) | CZ282725B6 (en) |
FI (1) | FI111306B (en) |
HU (1) | HU216923B (en) |
IL (1) | IL100213A (en) |
MX (1) | MX173446B (en) |
NO (1) | NO316199B1 (en) |
RO (1) | RO119761B1 (en) |
RU (1) | RU2111619C1 (en) |
SK (1) | SK280276B6 (en) |
WO (1) | WO1992010890A1 (en) |
Cited By (55)
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WO1995006365A1 (en) * | 1993-08-27 | 1995-03-02 | Qualcomm Incorporated | Dual distributed antenna system |
US5422908A (en) * | 1993-11-22 | 1995-06-06 | Interdigital Technology Corp. | Phased array spread spectrum system and method |
EP0668668A1 (en) * | 1994-02-16 | 1995-08-23 | Matsushita Electric Industrial Co., Ltd. | Mobile CDMA/TDD telecommunication system with transmission antennas selection means |
US5479397A (en) * | 1991-04-02 | 1995-12-26 | Airtouch Communications Of California | CDMA transmission delay method and apparatus |
EP0767976A1 (en) * | 1994-06-28 | 1997-04-16 | Interdigital Technology Corporation | Phased array spread spectrum system and method |
WO1997044983A2 (en) * | 1996-05-22 | 1997-11-27 | Qualcomm Incorporated | Method and apparatus for providing diversity in hard handoff for a cdma system |
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WO1998034424A2 (en) * | 1997-01-30 | 1998-08-06 | At & T Corp. | Cellular communication system with multiple same frequency broadcasts in a cell |
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US8351469B2 (en) | 2006-12-22 | 2013-01-08 | Fujitsu Limited | Radio communication method and a base station and user terminal thereof |
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RO119761B1 (en) | 2005-02-28 |
SK280276B6 (en) | 1999-10-08 |
AU652602B2 (en) | 1994-09-01 |
FI111306B (en) | 2003-06-30 |
RU2111619C1 (en) | 1998-05-20 |
US5280472A (en) | 1994-01-18 |
NO932041D0 (en) | 1993-06-04 |
SK57193A3 (en) | 1993-10-06 |
BG97842A (en) | 1994-04-29 |
HU216923B (en) | 1999-10-28 |
AU9138691A (en) | 1992-07-08 |
KR970000790B1 (en) | 1997-01-20 |
JPH06504660A (en) | 1994-05-26 |
NO932041L (en) | 1993-06-04 |
MX9102432A (en) | 1992-06-01 |
MX173446B (en) | 1994-03-03 |
FI932523A0 (en) | 1993-06-02 |
FI932523A (en) | 1993-08-02 |
IL100213A (en) | 1995-03-30 |
CZ282725B6 (en) | 1997-09-17 |
CA2097066C (en) | 2000-08-22 |
IL100213A0 (en) | 1992-09-06 |
BG61052B1 (en) | 1996-09-30 |
NO316199B1 (en) | 2003-12-22 |
BR9107213A (en) | 1993-11-03 |
CZ109793A3 (en) | 1994-04-13 |
JP3325890B2 (en) | 2002-09-17 |
CA2097066A1 (en) | 1992-06-08 |
HU9301626D0 (en) | 1993-09-28 |
HUT64655A (en) | 1994-01-28 |
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