KR20040045875A - 무선 통신 시스템을 동작시키는 방법 - Google Patents
무선 통신 시스템을 동작시키는 방법 Download PDFInfo
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- KR20040045875A KR20040045875A KR10-2004-7005777A KR20047005777A KR20040045875A KR 20040045875 A KR20040045875 A KR 20040045875A KR 20047005777 A KR20047005777 A KR 20047005777A KR 20040045875 A KR20040045875 A KR 20040045875A
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- antennas
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- 238000000034 method Methods 0.000 title claims abstract description 50
- 238000004891 communication Methods 0.000 title description 6
- 239000011159 matrix material Substances 0.000 claims abstract description 11
- 238000013442 quality metrics Methods 0.000 claims abstract description 8
- 238000012549 training Methods 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000011156 evaluation Methods 0.000 claims 1
- 238000000926 separation method Methods 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 description 5
- 238000005259 measurement Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000013101 initial test Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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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
- H04B7/0602—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 antenna switching
- H04B7/0608—Antenna selection according to transmission parameters
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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
- H04B7/0868—Hybrid systems, i.e. switching and combining
- H04B7/0874—Hybrid systems, i.e. switching and combining using subgroups of receive 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
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
- H04B7/0691—Hybrid systems, i.e. switching and simultaneous transmission using subgroups of transmit 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
- H04B7/0802—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 antenna selection
- H04B7/0805—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 antenna selection with single receiver and antenna switching
- H04B7/0814—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 antenna selection with single receiver and antenna switching based on current reception conditions, e.g. switching to different antenna when signal level is below threshold
-
- 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
- H04B7/0802—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 antenna selection
- H04B7/0817—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 antenna selection with multiple receivers and antenna path selection
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
- Selective Calling Equipment (AREA)
Abstract
Description
Claims (14)
- MIMO 안테나 시스템에서 송신 안테나와 수신 안테나의 조합을 선택하는 방법에 있어서, m 개의 송신 안테나 중 첫번째 안테나로부터 제 1 신호를 송신하는 단계, 복수의 n 개의 수신 안테나 각각에서 수신된 상기 제 1 신호의 품질 메트릭을 측정하는 단계, 신호들을 각각 송신하기 위해 나머지 m-1 개의 송신 안테나를 이용하여 상기 프로세스를 반복하는 단계, 및 제 1 신호를 수용가능하게 그리고 제 2 신호를 수용불가능하게 그리고 그 역으로 수신하는 송신 및 수신 안테나들의 이들 조합을 결정하는 단계를 포함하는, 방법.
- 적어도 2 개의 송신기들 및 복수의 송신 안테나들을 갖는 송신기, 및 적어도 2 개의 수신기들 및 복수의 수신 안테나들을 갖는 적어도 하나의 수신국을 구비하는 MIMO 안테나 시스템을 동작시키는 방법에 있어서, 제 1 복수의 송신 안테나들로부터 신호를 송신하고 복수의 수신 안테나들 각각에 의해 수신되는 신호의 품질 메트릭을 결정하는 단계, 각각의 나머지 송신 안테나들을 이용하여 상기 동작들을 각각 반복하는 단계, 복수의 송신 안테나들 대 복수의 수신 안테나들의 성능들에 대한 채널 매트릭스를 형성하는 단계, 및 상기 채널 매트릭스로 부터, 적어도 2 개의 송신 안테나들과 적어도 2 개의 수신 안테나들의 조합을 선택하는 단계를 포함하며, 적어도 하나의 송신 안테나로부터의 신호는, 나머지 송신 안테나(들)로부터의 신호에 대하여, 적어도 하나의 수신 안테나에서 수용가능하고 나머지 수신 안테나(들)에서 수용불가능하며 그 역으로도 가능한, 방법.
- 제 1 항 또는 제 2 항에 있어서,결정된 상기 품질 메트릭은 신호 세기인 것을 특징으로 하는, 방법.
- 제 3 항에 있어서,가장 강한 및 가장 약한 신호들은 각각 수용가능 및 수용불가능인 것으로 간주되는 것을 특징으로 하는, 방법.
- 제 2 항 내지 제 4 항 중 어느 한 항에 있어서,송신 및 수신 안테나들의 선택된 쌍의 성능을 모니터링하고, 수용불가능하게 된 이들의 성능에 응답하여, 상기 송신 및 수신 안테나들의 상대적인 성능이 평가되는 것을 특징으로 하는, 방법.
- 제 2 항 내지 제 4 항 중 어느 한 항에 있어서,송신 및 수신 안테나들의 선택된 쌍의 성능을 모니터링하고, 이들의 성능이 수용불가능하게 된 것에 응답하여, 상기 송신 및 수신 안테나들의 상대적인 성능의 평가가 이전에 선택된 송신 안테나들로 시작하는 것을 특징으로 하는, 방법.
- 제 1 항 내지 제 6 항 중 어느 한 항에 있어서,송신된 신호들은 트레이닝 및/또는 동기 시퀀스들인 것을 특징으로 하는, 방법.
- 적어도 2 개의 송신기들 및 복수의 송신 안테나들을 갖는 송신국, 및 적어도 2 개의 수신기들 및 복수의 수신 안테나들을 갖는 적어도 하나의 수신국을 구비하는 MIMO 안테나 시스템에 있어서, 상기 송신국은 송신 안테나들 중 하나의 송신 안테나를 순차적으로 선택하고 선택된 송신 안테나로부터 신호를 송신하는 수단을 가지며, 상기 수신국은 복수의 수신 안테나들 중 하나의 수신 안테나를 순차적으로 선택하는 수단 및 복수의 수신 안테나들 각각에 의해 수신되는 신호의 품질 메트릭을 결정하는 수단을 가지며, 상기 시스템은 송신 안테나들 대 수신 안테나들의 성능들에 대한 채널 매트릭스를 형성하고, 상기 채널 매트릭스로 부터, 적어도 2 개의 송신 안테나들과 적어도 2 개의 수신 안테나들의 조합을 선택하는 수단을 더 구비하며, 적어도 하나의 선택된 송신 안테나들로부터의 신호는 나머지 선택된 송신 안테나(들)로부터의 신호에 대하여 적어도 하나의 선택된 수신 안테나에서 수용가능하고 나머지 선택된 수신 안테나(들)에서 수용불가능하며, 그 역으로도 가능한, MIMO 안테나 시스템.
- 제 8 항에 있어서,상기 송신국은 송신 안테나들의 갯수 보다 더 작은 송신기들을 갖는 것을 특징으로 하는, MIMO 안테나 시스템.
- 제 8 항 또는 제 9 항에 있어서,상기 수신국은 수신 안테나들의 갯수 보다 더 작은 수신기들을 갖는 것을 특징으로 하는, MIMO 안테나 시스템.
- 제 8 항 내지 제 10 항 중 어느 한 항에서 청구된 바와 같은 MIMO 안테나 시스템에서 사용하기 위한 송신국.
- 제 8 항 내지 제 10 항 중 어느 한 항에서 청구된 바와 같은 MIMO 안테나 시스템에서 사용하기 위한 수신국.
- 앞에서 첨부 도면들을 참조하여 실질적으로 전술된 바와 같은 MIMO 시스템을 동작시키는 방법.
- 앞에서 첨부 도면에 보여지고 이를 참조하여 전술되는 바와 같이 실질적으로 동작하도록 구성 및 배열되는 MIMO 안테나 시스템.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB0125178.4A GB0125178D0 (en) | 2001-10-19 | 2001-10-19 | Method of operating a wireless communication system |
GB0125178.4 | 2001-10-19 | ||
PCT/IB2002/004258 WO2003034614A1 (en) | 2001-10-19 | 2002-10-10 | Method of operating a wireless communication system |
Publications (2)
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KR20040045875A true KR20040045875A (ko) | 2004-06-02 |
KR100924918B1 KR100924918B1 (ko) | 2009-11-05 |
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KR1020047005777A KR100924918B1 (ko) | 2001-10-19 | 2002-10-10 | 무선 통신 시스템을 동작시키는 방법 |
Country Status (10)
Country | Link |
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US (1) | US6774864B2 (ko) |
EP (1) | EP1440526B1 (ko) |
JP (1) | JP4271572B2 (ko) |
KR (1) | KR100924918B1 (ko) |
CN (1) | CN1279703C (ko) |
AT (1) | ATE415748T1 (ko) |
DE (1) | DE60230056D1 (ko) |
ES (1) | ES2316622T3 (ko) |
GB (1) | GB0125178D0 (ko) |
WO (1) | WO2003034614A1 (ko) |
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GB0125178D0 (en) | 2001-12-12 |
EP1440526B1 (en) | 2008-11-26 |
CN1572066A (zh) | 2005-01-26 |
US6774864B2 (en) | 2004-08-10 |
JP4271572B2 (ja) | 2009-06-03 |
CN1279703C (zh) | 2006-10-11 |
US20030083016A1 (en) | 2003-05-01 |
ES2316622T3 (es) | 2009-04-16 |
KR100924918B1 (ko) | 2009-11-05 |
EP1440526A1 (en) | 2004-07-28 |
JP2005506754A (ja) | 2005-03-03 |
DE60230056D1 (de) | 2009-01-08 |
WO2003034614A1 (en) | 2003-04-24 |
ATE415748T1 (de) | 2008-12-15 |
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