DE60111013D1 - OFDM-Empfangsvorrichtung und -verfahren zur Strahlformung mit unregelmässiger Strahlbreite auf Basis von Kanaleigenschaften - Google Patents
OFDM-Empfangsvorrichtung und -verfahren zur Strahlformung mit unregelmässiger Strahlbreite auf Basis von KanaleigenschaftenInfo
- Publication number
- DE60111013D1 DE60111013D1 DE60111013T DE60111013T DE60111013D1 DE 60111013 D1 DE60111013 D1 DE 60111013D1 DE 60111013 T DE60111013 T DE 60111013T DE 60111013 T DE60111013 T DE 60111013T DE 60111013 D1 DE60111013 D1 DE 60111013D1
- Authority
- DE
- Germany
- Prior art keywords
- signal
- receiving
- coefficient
- calculating
- unit
- 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.)
- Expired - Lifetime
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
-
- 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
- H04B7/086—Weighted combining using weights depending on external parameters, e.g. direction of arrival [DOA], predetermined weights or beamforming
-
- 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
- H04B7/0408—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more beams, i.e. beam 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
- H04B7/06—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
- H04B7/0615—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 weighted versions of same signal
- H04B7/0617—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 weighted versions of same signal for beam forming
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radio Transmission System (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Aerials With Secondary Devices (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020010006248A KR100645427B1 (ko) | 2001-02-08 | 2001-02-08 | 채널 특성에 따라 불균등한 빔 폭을 형성하는 오에프디엠수신 장치와 이를 적용한 통신장치 및 방법 |
KR2001006248 | 2001-02-08 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE60111013D1 true DE60111013D1 (de) | 2005-06-30 |
DE60111013T2 DE60111013T2 (de) | 2005-10-20 |
Family
ID=19705513
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE60111013T Expired - Lifetime DE60111013T2 (de) | 2001-02-08 | 2001-11-22 | OFDM-Empfangsvorrichtung und -verfahren zur Strahlformung mit unregelmässiger Strahlbreite auf Basis von Kanaleigenschaften |
Country Status (7)
Country | Link |
---|---|
US (1) | US7327797B2 (de) |
EP (1) | EP1231722B1 (de) |
JP (1) | JP3586239B2 (de) |
KR (1) | KR100645427B1 (de) |
AT (1) | ATE296503T1 (de) |
DE (1) | DE60111013T2 (de) |
ES (1) | ES2240363T3 (de) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040004951A1 (en) * | 2002-07-05 | 2004-01-08 | Interdigital Technology Corporation | Method for performing wireless switching |
FR2844407B1 (fr) * | 2002-09-05 | 2004-12-03 | Thomson Licensing Sa | Procede de selection de canal de transmission et recepteur de signaux a diversite d'antenne |
US7385914B2 (en) * | 2003-10-08 | 2008-06-10 | Atheros Communications, Inc. | Apparatus and method of multiple antenna transmitter beamforming of high data rate wideband packetized wireless communication signals |
US7366089B2 (en) | 2003-10-08 | 2008-04-29 | Atheros Communications, Inc. | Apparatus and method of multiple antenna receiver combining of high data rate wideband packetized wireless communication signals |
US8130862B2 (en) * | 2004-11-16 | 2012-03-06 | Intellectual Ventures Holding 40 Llc | Precoding system and method for multi-user transmission in multiple antenna wireless systems |
JP2006217272A (ja) * | 2005-02-03 | 2006-08-17 | Funai Electric Co Ltd | アンテナの設定装置 |
KR100831177B1 (ko) | 2005-10-08 | 2008-05-21 | 삼성전자주식회사 | 스마트 안테나 통신시스템의 송신기 및 송신 방법 |
JP2007166459A (ja) * | 2005-12-16 | 2007-06-28 | Samsung Electronics Co Ltd | 無線通信装置及び無線通信方式 |
JP2008160532A (ja) * | 2006-12-25 | 2008-07-10 | Samsung Electronics Co Ltd | 無線通信装置及び無線通信方法 |
US9344897B2 (en) | 2007-03-13 | 2016-05-17 | Qualcomm Incorporated | Estimating timing and frequency information for multiple channel wireless communication systems |
US8218690B1 (en) | 2008-09-29 | 2012-07-10 | Qualcomm Atheros, Inc. | Timing offset compensation for high throughput channel estimation |
WO2012003627A1 (en) * | 2010-07-06 | 2012-01-12 | Huawei Technologies Co., Ltd. | Method for communicating with a user equipment using plurality of transmit antennas |
US10320497B2 (en) * | 2014-01-16 | 2019-06-11 | Telefonaktiebolaget Lm Ericsson (Publ) | Control of directive antennas for wireless links |
US20180227024A1 (en) * | 2017-02-03 | 2018-08-09 | Futurewei Technologies, Inc. | Method and Apparatus of Beam Recommendation in Communication Systems |
EP3596959A4 (de) * | 2017-03-17 | 2020-12-16 | JRD Communication (Shenzhen) Ltd | Verfahren und knoten zur strahleinstellung |
US10506468B2 (en) * | 2017-09-08 | 2019-12-10 | At&T Intellectual Property I, L.P. | Reporting hybrid automatic repeat request-acknowledgements in wireless communication systems |
US20230224725A1 (en) * | 2020-07-02 | 2023-07-13 | Qualcomm Incorporated | Managing beam coverage area representations in wireless communications systems |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3226561B2 (ja) * | 1991-02-22 | 2001-11-05 | 株式会社東芝 | Fsk信号受信回路 |
US6006110A (en) * | 1995-02-22 | 1999-12-21 | Cisco Technology, Inc. | Wireless communication network using time-varying vector channel equalization for adaptive spatial equalization |
US5856804A (en) * | 1996-10-30 | 1999-01-05 | Motorola, Inc. | Method and intelligent digital beam forming system with improved signal quality communications |
JPH10145250A (ja) * | 1996-11-12 | 1998-05-29 | Nec Corp | 無線受信装置 |
US6128276A (en) | 1997-02-24 | 2000-10-03 | Radix Wireless, Inc. | Stacked-carrier discrete multiple tone communication technology and combinations with code nulling, interference cancellation, retrodirective communication and adaptive antenna arrays |
US6009124A (en) * | 1997-09-22 | 1999-12-28 | Intel Corporation | High data rate communications network employing an adaptive sectored antenna |
JP3465739B2 (ja) | 1998-04-07 | 2003-11-10 | 日本電気株式会社 | Cdma適応アンテナ受信装置及び通信システム |
GB9901789D0 (en) | 1998-04-22 | 1999-03-17 | Koninkl Philips Electronics Nv | Antenna diversity system |
US6795424B1 (en) * | 1998-06-30 | 2004-09-21 | Tellabs Operations, Inc. | Method and apparatus for interference suppression in orthogonal frequency division multiplexed (OFDM) wireless communication systems |
US6831943B1 (en) * | 1999-08-13 | 2004-12-14 | Texas Instruments Incorporated | Code division multiple access wireless system with closed loop mode using ninety degree phase rotation and beamformer verification |
US6584302B1 (en) * | 1999-10-19 | 2003-06-24 | Nokia Corporation | Method and arrangement for forming a beam |
US6492942B1 (en) * | 1999-11-09 | 2002-12-10 | Com Dev International, Inc. | Content-based adaptive parasitic array antenna system |
US6490448B1 (en) * | 1999-12-10 | 2002-12-03 | Motorola, Inc. | Snap to grid variable beam size digital beamforming system |
US6351499B1 (en) * | 1999-12-15 | 2002-02-26 | Iospan Wireless, Inc. | Method and wireless systems using multiple antennas and adaptive control for maximizing a communication parameter |
US6421005B1 (en) * | 2000-08-09 | 2002-07-16 | Lucent Technologies Inc. | Adaptive antenna system and method |
-
2001
- 2001-02-08 KR KR1020010006248A patent/KR100645427B1/ko not_active IP Right Cessation
- 2001-11-01 US US09/985,123 patent/US7327797B2/en not_active Expired - Fee Related
- 2001-11-22 DE DE60111013T patent/DE60111013T2/de not_active Expired - Lifetime
- 2001-11-22 ES ES01309815T patent/ES2240363T3/es not_active Expired - Lifetime
- 2001-11-22 AT AT01309815T patent/ATE296503T1/de active
- 2001-11-22 EP EP01309815A patent/EP1231722B1/de not_active Expired - Lifetime
- 2001-12-10 JP JP2001376407A patent/JP3586239B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
KR100645427B1 (ko) | 2006-11-14 |
US20020106042A1 (en) | 2002-08-08 |
ES2240363T3 (es) | 2005-10-16 |
EP1231722B1 (de) | 2005-05-25 |
US7327797B2 (en) | 2008-02-05 |
ATE296503T1 (de) | 2005-06-15 |
JP3586239B2 (ja) | 2004-11-10 |
KR20020066065A (ko) | 2002-08-14 |
EP1231722A3 (de) | 2004-01-07 |
DE60111013T2 (de) | 2005-10-20 |
JP2002290374A (ja) | 2002-10-04 |
EP1231722A2 (de) | 2002-08-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |