KR101356936B1 - 폐루프 다중 입력 다중 출력 통신시스템에서 채널 분해 방법 및 장치 - Google Patents
폐루프 다중 입력 다중 출력 통신시스템에서 채널 분해 방법 및 장치 Download PDFInfo
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- KR101356936B1 KR101356936B1 KR1020070114286A KR20070114286A KR101356936B1 KR 101356936 B1 KR101356936 B1 KR 101356936B1 KR 1020070114286 A KR1020070114286 A KR 1020070114286A KR 20070114286 A KR20070114286 A KR 20070114286A KR 101356936 B1 KR101356936 B1 KR 101356936B1
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- matrix
- equation
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- 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
- H04B7/0848—Joint weighting
- H04B7/0854—Joint weighting using error minimizing algorithms, e.g. minimum mean squared error [MMSE], "cross-correlation" or matrix inversion
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0204—Channel estimation of multiple channels
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/024—Channel estimation channel estimation algorithms
- H04L25/0242—Channel estimation channel estimation algorithms using matrix methods
- H04L25/0246—Channel estimation channel estimation algorithms using matrix methods with factorisation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/024—Channel estimation channel estimation algorithms
- H04L25/0242—Channel estimation channel estimation algorithms using matrix methods
- H04L25/0248—Eigen-space methods
-
- 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
- H04B7/0619—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 using feedback from receiving side
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Power Engineering (AREA)
- Radio Transmission System (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
수신 단에서만 채널 정보를 이용할 수 있는 개루프(open-loop) 시스템에 비해서, 송/수신단 모두에서 채널 정보를 이용할 수 있는 폐루프(closed-loop) 시스템은 높은 성능 이득을 가질 수 있다.
Claims (30)
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- 제 1항에 있어서,상기 송신부의 출력 신호를 제2행렬을 사용하여 필터링함으로써 수신 신호 벡터로 생성하는 수신부를 더 포함하는 채널 분해 장치.
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- 제 16항에 있어서,상기 송출 과정을 통해서 출력된 신호를 제2행렬을 사용하여 필터링함으로써 수신 신호 벡터로 생성하는 과정을 더 포함하는 채널 분해 방법.
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Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020070114286A KR101356936B1 (ko) | 2007-11-09 | 2007-11-09 | 폐루프 다중 입력 다중 출력 통신시스템에서 채널 분해 방법 및 장치 |
| US12/291,286 US8238464B2 (en) | 2007-11-09 | 2008-11-07 | Method and apparatus for decomposing channel in closed-loop multiple input multiple output communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020070114286A KR101356936B1 (ko) | 2007-11-09 | 2007-11-09 | 폐루프 다중 입력 다중 출력 통신시스템에서 채널 분해 방법 및 장치 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20090048079A KR20090048079A (ko) | 2009-05-13 |
| KR101356936B1 true KR101356936B1 (ko) | 2014-01-29 |
Family
ID=40623688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020070114286A Expired - Fee Related KR101356936B1 (ko) | 2007-11-09 | 2007-11-09 | 폐루프 다중 입력 다중 출력 통신시스템에서 채널 분해 방법 및 장치 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US8238464B2 (ko) |
| KR (1) | KR101356936B1 (ko) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101587566B1 (ko) * | 2009-12-30 | 2016-02-02 | 삼성전자주식회사 | 다중 사용자 다중 안테나 시스템에서의 유니터리 프리코딩 장치 및 방법 |
| KR101757452B1 (ko) | 2010-01-08 | 2017-07-13 | 삼성전자주식회사 | 무선 통신 시스템에서 자원 매핑 및 디매핑 방법 및 장치 |
| CA2862474C (en) * | 2011-01-27 | 2020-04-07 | Commonwealth Scientific And Industrial Research Organisation | Reducing out-of-band emission |
| US9281885B2 (en) * | 2014-04-07 | 2016-03-08 | Imagination Technologies, Llc | Reordering of a beamforming matrix based on encoding |
| CN105934989A (zh) * | 2014-12-29 | 2016-09-07 | 华为技术有限公司 | 一种信号传输装置和方法 |
| CN108645920B (zh) * | 2018-04-09 | 2020-12-22 | 华南理工大学 | 一种基于去噪和对齐的钢轨超声探伤的直达波抑制方法 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006052890A1 (en) * | 2004-11-05 | 2006-05-18 | University Of Florida Research Foundation, Inc. | Uniform channel decomposition for mimo communications |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7991090B2 (en) * | 2006-05-04 | 2011-08-02 | Broadcom Corporation | Method and system for reordered QRV-LST (layered space time) detection for efficient processing for multiple input multiple output (MIMO) communication systems |
| US7680205B2 (en) | 2006-07-28 | 2010-03-16 | Broadcom Corporation | Method and system for transmitter beamforming for reduced complexity multiple input multiple output (MIMO) transceivers |
-
2007
- 2007-11-09 KR KR1020070114286A patent/KR101356936B1/ko not_active Expired - Fee Related
-
2008
- 2008-11-07 US US12/291,286 patent/US8238464B2/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006052890A1 (en) * | 2004-11-05 | 2006-05-18 | University Of Florida Research Foundation, Inc. | Uniform channel decomposition for mimo communications |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20090048079A (ko) | 2009-05-13 |
| US8238464B2 (en) | 2012-08-07 |
| US20090122889A1 (en) | 2009-05-14 |
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