Transmission using an antenna array in a CDMA communication system
Abstract
The present invention provides a method for receiving a traffic signal in a code division multiple access communication system, the system transmitting a traffic signal over a shared spectrum, traffic signal having an associated code, the method comprising:receiving signals over the shared spectrum;sampling the received signals to produce samples;delaying the samples to produce a window, the window having evenly time spaced samples;despreading the samples and determining a weight for each despread window sample using an adaptive algorithm, the adaptive algorithm providing a determination of an optimum weight for each of a plurality of despread components; andadaptively filtering the received signals using the associated code of the traffic signal and the determined weights to produce data of the traffic signal.
Term
No projected expiry on record.
- Priority
- Filed
- Published
- Today
1 claim: 1 independent, 0 dependent
- 1VéKTJUSTERINQS · VéKTJUSTERINQS· DEVICE INNRETNING
9 paragraphs in 1 section, as filed
(22) No day (24) Running day (41) Alm. avail.
2002.03.08
2000.08.17
2002.04.30 (86) Int. Entry date and application number (85) Continuation day (30) Priority
2000.08.17, PCT / US00 / 22559 2002.03.08
1999.09.10. US. 394452 (71) Applicant (72) Inventor (74) Proxy (54) Title
InterDigital Technology Corp.
300 Delaware Avenue, Suite 527, Wilmington, DE 19801, US David K Mesecher, Huntington Station, NY, US Bryns Zacco AS, 0106 Oslo
Transmission using an antenna array in a CDMA communication system (57) Summary The invention provides transmission and reception of data signals using multiple transmitter antennas. Each antenna transmits a different pilot signal with a pseudorandom chip coding sequence. A receiver filters each transmitted pilot using the pilot's chip code. The filtered pilots are weighed and combined. Each pilot's signal weight is adjusted appropriately, partly to a signal quality of the combined signal. A data signal is transmitted so that different spread spectrum versions of the data signal are transmitted from each transmitter antenna. Each version has a different chip code identifier. After receipt, each version is filtered with its associated chip code. The filtered versions are weighed according to the adjusted weights associated with the pilot signal to it
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1 sheet
Sheet 1
133 members in 18 offices
Priority claims8
| Document | Office | Kind | Date |
|---|---|---|---|
| 39445299 | United States of America | A | |
| 39445299 | United States of America | A | |
| 0022559 | United States of America | W | |
| 0022559 | United States of America | W | |
| 0022559 | – | – | – |
| 394452 | – | – | – |
| US19990394452 | – | – | – |
| WO2000US22559 | – | – | – |
Members133
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|---|---|---|---|
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| CA2383178A1 | Canada | A1 | |
| CA2498521A1 | Canada | A1 | |
| CA2833666A1 | Canada | A1 | |
| WO0118986A1 | World Intellectual Property Organization (WIPO) | A1 | |
| WO0118993A1 | World Intellectual Property Organization (WIPO) | A1 | |
| AU6780600A | Australia | A | |
| AU7478300A | Australia | A | |
| US6278726B1 | United States of America | B1 | |
| US2001038666A1 | United States of America | A1 | |
| NO20021148D0 | Norway | D0 | |
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| US6373877B1 | United States of America | B1 | |
| NO20021177LThis record | Norway | L | |
| NO20084277L | Norway | L | |
| NO20021148L | Norway | L | |
| NO20090123L | Norway | L | |
| BR0013889A | Brazil | A | |
| KR20020035133A | Republic of Korea | A | |
| EP1210775A1 | European Patent Office (EPO) | A1 | |
| EP1210777A1 | European Patent Office (EPO) | A1 | |
| US2002085620A1 | United States of America | A1 | |
| US2002094016A1 | United States of America | A1 | |
| US2002094019A1 | United States of America | A1 | |
| IL148412A0 | Israel | A0 | |
| IL148412D0 | Israel | D0 | |
| CN1373941A | China | A | |
| MXPA02002522A | Mexico | A | |
| DE1210775T1 | Germany | T1 | |
| DE1210777T1 | Germany | T1 | |
| HK1045611A | Hong Kong, China | A | |
| HK1045611A1 | Hong Kong, China | A1 | |
| HK1045613A | Hong Kong, China | A | |
| HK1045613A1 | Hong Kong, China | A1 | |
| JP2003509893A | Japan | A | |
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| US6574265B2 | United States of America | B2 | |
| US6574271B2 | United States of America | B2 | |
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| US2003198284A1 | United States of America | A1 | |
| EP1210775B1 | European Patent Office (EPO) | B1 | |
| AT273587T | Austria | T | |
| ATE273587T1 | Austria | T1 | |
| EP1447924A1 | European Patent Office (EPO) | A1 | |
| US6782040B2 | United States of America | B2 | |
| DE60012944D1 | Germany | D1 | |
| KR100451807B1 | Republic of Korea | B1 | |
| EP1210777B1 | European Patent Office (EPO) | B1 | |
| AT279818T | Austria | T | |
| ATE279818T1 | Austria | T1 | |
| EP1475900A2 | European Patent Office (EPO) | A2 | |
| DE60014935D1 | Germany | D1 | |
| DK1210775T3 | Denmark | T3 | |
| EP1475900A3 | European Patent Office (EPO) | A3 | |
| US2005025224A1 | United States of America | A1 | |
| DK1210777T3 | Denmark | T3 | |
| PT1210777E | Portugal | E | |
| ES2223579T3 | Spain | T3 | |
| HK1045611B | Hong Kong, China | B | |
| ES2225197T3 | Spain | T3 | |
| HK1045613B | Hong Kong, China | B | |
| HK1067916A | Hong Kong, China | A | |
| HK1067916A1 | Hong Kong, China | A1 | |
| CA2383178C | Canada | C | |
| DE60012944T2 | Germany | T2 | |
| HK1072838A | Hong Kong, China | A | |
| HK1072838A1 | Hong Kong, China | A1 | |
| JP2005260977A | Japan | A | |
| US6983008B2 | United States of America | B2 | |
| US6985515B2 | United States of America | B2 | |
| CN1237737C | China | C | |
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| CN1770657A | China | A | |
| US2006098720A1 | United States of America | A1 | |
| JP2006311611A | Japan | A | |
| CN1881832A | China | A | |
| CN1897482A | China | A | |
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| HK1097362A | Hong Kong, China | A | |
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| IL181375D0 | Israel | D0 | |
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| HK1102652A1 | Hong Kong, China | A1 | |
| HK1103317A | Hong Kong, China | A | |
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| NO326753B1 | Norway | B1 | |
| US7545846B2 | United States of America | B2 | |
| NO327636B1 | Norway | B1 | |
| US2009257472A1 | United States of America | A1 | |
| EP1475900B1 | European Patent Office (EPO) | B1 | |
| AT459138T | Austria | T | |
| ATE459138T1 | Austria | T1 |
1 legal event, as the office reported them to INPADOC
Events
| Event | Code | |
|---|---|---|
| Lapsed by not paying the annual feesLapsedMM1K | MM1K |
Numbers
- Publication, DOCDB
- 20021177
- Publication, EPODOC
- NO20021177L
- Application
- 1177
- Application, DOCDB
- 20021177
- Application, EPODOC
- NO20020001177
Titles2
- Norwegian
- Transmisjon ved bruk av en antennegruppe i et CDMA kommunikasjonssystem
- English
- Transmission using an antenna array in a CDMA communication system
Classification
- CPC, 13
- H04B1/712
- H04B7/06
- H04B7/0613
- H04B7/0615
- H04B7/0619
- H04B7/0634
- H04B7/0678
- H04B7/0845
- H04B7/0854
- H04B7/0857
- H04B7/0891
- H04B2201/70701
- H04J13/0003
- IPC, 9
- H04B1 712
- H04B7 06
- H04B7 08
- H04B7 216
- H04B7 26
- H04J13 00
- H04M1 725
- H04W16 28
- H04W88 08