KR101009817B1 - 공간-분할 다중 액세스를 수행하기 위한 방법 및 장치 - Google Patents
공간-분할 다중 액세스를 수행하기 위한 방법 및 장치 Download PDFInfo
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- KR101009817B1 KR101009817B1 KR1020087021742A KR20087021742A KR101009817B1 KR 101009817 B1 KR101009817 B1 KR 101009817B1 KR 1020087021742 A KR1020087021742 A KR 1020087021742A KR 20087021742 A KR20087021742 A KR 20087021742A KR 101009817 B1 KR101009817 B1 KR 101009817B1
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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
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0697—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 spatial multiplexing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/76—Pilot transmitters or receivers for control of transmission or for equalising
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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
- H04B7/06—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
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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
- H04B7/06—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
- H04B7/0621—Feedback content
- H04B7/0634—Antenna weights or vector/matrix coefficients
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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
- H04B7/0413—MIMO systems
- H04B7/0452—Multi-user MIMO systems
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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
- H04B7/06—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
- H04B7/0636—Feedback format
- H04B7/0639—Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Mathematical Physics (AREA)
- Mobile Radio Communication Systems (AREA)
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Abstract
Description
Claims (10)
- 공간-분할 다중 액세스(spatial-division multiple access)를 수행하기 위한 방법으로서,다중 안테나로부터 제1 및 제2 노드에게 파일럿 데이터를 송신하는 단계와,상기 송신에 응답하여 상기 제1 및 제2 노드로부터 제1 및 제2 채널 서브스페이스 정보를 수신하는 단계와,상기 송신에 응답하여 노드로부터 제1 및 제2 널(null) 서브스페이스 정보를 수신하는 단계와,상기 제1 노드에 대한 안테나 가중들을 결정하도록 상기 제1 채널 서브스페이스 정보 및 상기 제2 널 서브스페이스 정보를 이용하는 단계와,상기 제2 노드에 대한 안테나 가중들을 결정하도록 상기 제2 채널 서브스페이스 정보 및 상기 제1 널 서브스페이스 정보를 이용하는 단계와,상기 제1 및 제2 안테나 가중들을 각각 이용하여 상기 제1 및 제2 노드에게 데이터를 동시에 송신하는 단계를 포함하는 공간-분할 다중 액세스 수행 방법.
- 제1항에 있어서, 상기 채널 서브스페이스 정보는 코드북 엔트리를 포함하는 공간-분할 다중 액세스 수행 방법.
- 제1항에 있어서, 상기 널 서브스페이스 정보는 코드북 엔트리를 포함하는 공간-분할 다중 액세스 수행 방법.
- 제1항에 있어서,상기 제1 채널 서브스페이스 정보는 상기 제1 노드로의 송신 에너지를 최대화하는 코드북 엔트리를 포함하고, 상기 제2 채널 서브스페이스 정보는 상기 제2 노드로의 에너지를 최대화하는 코드북 엔트리를 포함하는 공간-분할 다중 액세스 수행 방법.
- 제1항에 있어서, 상기 제1 널 서브스페이스 정보는 상기 제1 노드로의 송신 에너지를 최소화하는데 이용되는 코드북 엔트리를 포함하고, 상기 제2 널 서브스페이스 정보는 상기 제2 노드로의 에너지를 최소화하는데 이용되는 코드북 엔트리를 포함하는 공간-분할 다중 액세스 수행 방법.
- 공간-분할 다중 액세스를 수행하기 위한 방법으로서,다중 안테나로부터 송신되는 파일럿 데이터를 기지국으로부터 수신하는 단계와,상기 수신된 파일럿 데이터에 기초하여 채널 서브스페이스 정보를 결정하는 단계와,상기 수신된 파일럿 데이터에 기초하여 널 서브스페이스 정보를 결정하는 단계와,안테나 가중들을 결정할 때 상기 기지국이 이용하기 위해 상기 채널 서브스페이스 정보 및 상기 널 서브스페이스 정보를 송신하는 단계를 포함하는 공간-분할 다중 액세스 수행 방법.
- 공간-분할 다중 액세스를 수행하기 위한 장치로서,파일럿 데이터를 송신하는 송신기와,제1 및 제2 노드로부터의 제1 및 제2 채널 서브스페이스 정보, 및 상기 제1 및 제2 노드로부터의 제1 및 제2 널 서브스페이스 정보를 수신하는 수신기와,상기 제1 노드에 대한 제1 안테나/스트림 가중들을 결정하기 위해 상기 제1 채널 서브스페이스 정보 및 제2 널 서브스페이스 정보를 이용하고, 또한 상기 제2 노드에 대한 제2 안테나/스트림 가중들을 결정하기 위해 상기 제2 채널 서브스페이스 정보 및 상기 제1 널 서브스페이스 정보를 이용하는 스트림 가중 회로를 포함하는 공간-분할 다중 액세스 수행 장치.
- 제7항에 있어서, 상기 송신기는 또한 상기 제1 및 제2 안테나/스트림 가중들을 이용하여 상기 제1 및 제2 노드에게 정보를 동시에 송신하는 공간-분할 다중 액세스 수행 장치.
- 제7항에 있어서, 상기 채널 서브스페이스 정보는 제1 및 제2 코드북 엔트리를 포함하는 공간-분할 다중 액세스 수행 장치.
- 제7항에 있어서, 상기 제1 및 제2 널 서브스페이스 정보는 제1 및 제2 코드북 엔트리를 포함하는 공간-분할 다중 액세스 수행 장치.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US11/275,938 US7426198B2 (en) | 2006-02-06 | 2006-02-06 | Method and apparatus for performing spatial-division multiple access |
US11/275,938 | 2006-02-06 |
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KR20080094940A KR20080094940A (ko) | 2008-10-27 |
KR101009817B1 true KR101009817B1 (ko) | 2011-01-19 |
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US (2) | US7426198B2 (ko) |
EP (2) | EP1985125B1 (ko) |
KR (1) | KR101009817B1 (ko) |
PL (1) | PL1985125T3 (ko) |
WO (1) | WO2007092671A2 (ko) |
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US6463295B1 (en) | 1996-10-11 | 2002-10-08 | Arraycomm, Inc. | Power control with signal quality estimation for smart antenna communication systems |
US6982968B1 (en) | 2000-09-29 | 2006-01-03 | Arraycomm, Inc. | Non-directional transmitting from a wireless data base station having a smart antenna system |
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US7426198B2 (en) | 2008-09-16 |
EP2897306B1 (en) | 2016-10-12 |
US8000293B2 (en) | 2011-08-16 |
EP1985125A2 (en) | 2008-10-29 |
EP1985125B1 (en) | 2015-03-25 |
WO2007092671A3 (en) | 2007-12-21 |
PL1985125T3 (pl) | 2015-08-31 |
EP2897306A1 (en) | 2015-07-22 |
US20070183362A1 (en) | 2007-08-09 |
WO2007092671A2 (en) | 2007-08-16 |
EP1985125A4 (en) | 2013-01-16 |
KR20080094940A (ko) | 2008-10-27 |
US20080305805A1 (en) | 2008-12-11 |
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