KR100995031B1 - 다중입력 다중출력 시스템에 적용되는 신호 전송 제어 방법 - Google Patents
다중입력 다중출력 시스템에 적용되는 신호 전송 제어 방법 Download PDFInfo
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
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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
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7097—Interference-related aspects
- H04B1/7103—Interference-related aspects the interference being multiple access interference
- H04B1/7105—Joint detection techniques, e.g. linear detectors
- H04B1/71055—Joint detection techniques, e.g. linear detectors using minimum mean squared error [MMSE] detector
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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
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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
- H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
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- H—ELECTRICITY
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- 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
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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
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
- H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
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- H—ELECTRICITY
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- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0026—Transmission of channel quality indication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
- H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
- H04L1/0618—Space-time coding
- H04L1/0637—Properties of the code
- H04L1/0656—Cyclotomic systems, e.g. Bell Labs Layered Space-Time [BLAST]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
- H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
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- 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
- H04B7/061—Antenna selection according to transmission parameters using feedback from receiving side
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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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Abstract
Description
bps/Hz | 데이터율 (Mbps) | 변조방식 | 코딩 레이트 |
3 | 7.2 | 16 QAM | 3/4 |
2 | 4.8 | 16 QAM | 1/2 |
1.5 | 3.6 | QPSK | 3/4 |
1 | 2.4 | QPSK | 1/2 |
0.5 | 1.2 | QPSK | 3/4 |
인덱스 | 데이터 율:Mbps | 제 1 안테나 | 제 2 안테나 | 제 3 안테나 | 제 4 안테나 |
1 | 28.8 | 3 | 3 | 3 | 3 |
2 | 26.4 | 3 | 3 | 2 | 3 |
3 | 26.4 | 3 | 2 | 3 | 3 |
4 | 26.4 | 2 | 3 | 3 | 3 |
5 | 24.0 | 2 | 3 | 3 | 2 |
6 | 24.0 | 2 | 3 | 2 | 3 |
7 | 24.0 | 2 | 2 | 3 | 3 |
8 | 21.6 | 2 | 2 | 3 | 2 |
9 | 21.6 | 2 | 2 | 2 | 3 |
10 | 19.2 | 2 | 2 | 2 | 2 |
11 | 22.8 | 2 | 1.5 | 3 | 3 |
12 | 20.4 | 2 | 1.5 | 2 | 3 |
13 | 18.0 | 2 | 1.5 | 2 | 2 |
14 | 19.2 | 2 | 1.5 | 1.5 | 2 |
15 | 16.8 | 2 | 1 | 2 | 2 |
16 | 25.2 | 1.5 | 3 | 3 | 3 |
17 | 22.8 | 1.5 | 3 | 2 | 3 |
18 | 22.8 | 1.5 | 2 | 3 | 3 |
19 | 20.4 | 1.5 | 2 | 2 | 3 |
20 | 18.0 | 1.5 | 2 | 2 | 2 |
21 | 19.2 | 1.5 | 2 | 1.5 | 2 |
22 | 21.6 | 1.5 | 1.5 | 3 | 3 |
23 | 21.6 | 1.5 | 1.5 | 3 | 3 |
24 | 16.8 | 1.5 | 1.5 | 2 | 2 |
25 | 14.4 | 1.5 | 1.5 | 2 | 1 |
26 | 15.6 | 1.5 | 1.5 | 1.5 | 2 |
27 | 15.6 | 1.5 | 1 | 2 | 2 |
28 | 24.0 | 1 | 3 | 3 | 3 |
29 | 21.6 | 1 | 3 | 2 | 3 |
30 | 21.6 | 1 | 2 | 3 | 3 |
31 | 19.2 | 1 | 2 | 2 | 3 |
32 | 16.8 | 1 | 2 | 2 | 2 |
33 | 15.6 | 1 | 2 | 2 | 1.5 |
34 | 15.6 | 1 | 2 | 1.5 | 2 |
35 | 18.0 | 1 | 1.5 | 2 | 3 |
36 | 15.6 | 1 | 1.5 | 2 | 2 |
37 | 20.4 | 0.5 | 2 | 3 | 3 |
38 | 15.6 | 0.5 | 2 | 2 | 2 |
39 | 14.4 | 3 | 3 | ||
40 | 14.4 | 3 | 3 | ||
41 | 12.0 | 2 | 2 | ||
42 | 12.0 | 3 | 2 | ||
43 | 12.0 | 2 | 3 | ||
44 | 12.0 | 2 | 3 | ||
45 | 9.6 | 2 | 2 | ||
46 | 9.6 | 2 | 2 | ||
47 | 8.4 | 2 | 1.5 | ||
48 | 8.4 | 2 | 1.5 | ||
49 | 10.8 | 1.5 | 3 | ||
50 | 10.8 | 1.5 | 3 | ||
51 | 8.4 | 1.5 | 2 | ||
52 | 8.4 | 1.5 | 2 | ||
53 | 9.6 | 1 | 3 | ||
54 | 9.6 | 1 | 3 | ||
55 | 7.2 | 3 | |||
56 | 7.2 | 3 | |||
57 | 4.8 | 2 | |||
58 | 4.8 | 2 | |||
59 | 3.6 | 1.5 | |||
60 | 3.6 | 1.5 | |||
61 | 2.4 | 1 | |||
62 | 2.4 | 1 | |||
63 | 1.2 | 0.5 | |||
64 | 1.2 | 0.5 |
Claims (16)
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- 다중입력 다중출력(MIMO; Multi-Input and Multi-Output) 시스템에서의 신호 전송 제어 방법에 있어서,송신측에서 M개의 송신 안테나를 통해 M개의 스트림을 전송하는 단계;수신측으로부터 수신되며 상기 M개의 송신 안테나의 전송 성능을 나타내는 채널 상태 정보에 기반하여, 상기 송신측에서 상기 M개의 송신 안테나로부터 상기 M 보다 적은 P개의 송신 안테나를 선택하는 단계;상기 송신측에서 상기 P개의 송신 안테나를 통해 P개의 스트림을 전송하는 단계; 및상기 송신측은 상기 P개의 송신 안테나에 대한 피드백 정보만을 상기 수신측으로부터 수신하는 단계를 포함하고,상기 P개의 스트림은 각각 상기 P개의 송신 안테나에 대해 개별적으로 선택되는 변조 및 코드 조합 중에서 대응되는 변조 및 코드 조합으로 처리되는, 신호 전송 제어 방법.
- 제10항에 있어서,상기 채널 상태 정보는 SINR(Signal to Interference Noise Ratio)을 포함하는 것을 특징으로 하는 신호 전송 제어 방법.
- 제10항에 있어서, 상기 P개의 송신 안테나를 선택하는 단계는,상기 송신측에서 상기 M개의 송신 안테나 각각의 채널 상태 정보를 미리 지정된 기준과 비교하는 단계; 및상기 송신측에서 상기 미리 지정된 기준과 같거나 높은 채널 품질 정보를 갖는 상기 P개의 송신 안테나를 선택적으로 선택하는 단계를 포함하는 것을 특징으로 하는 신호 전송 제어 방법.
- 제10항에 있어서,상기 변조 및 코드 조합은 PARC(Per Antenna Rate Control) 전송 방법에 따라 선택되는 것을 특징으로 하는 신호 전송 제어 방법.
- 송신측에서 M개의 송신 안테나를 통해 M개의 스트림을 전송하도록 구성된 PARC(Per Antenna Rate Control) 유닛을 포함하고,상기 PARC 유닛은 수신측으로부터 수신되며 상기 M개의 송신 안테나의 전송 성능을 나타내는 채널 상태 정보에 기반하여, 상기 송신측에서 상기 M개의 송신 안테나로부터 상기 M 보다 적은 P개의 송신 안테나를 선택하며, 상기 P개의 송신 안테나를 통해 P개의 스트림을 전송하고, 상기 수신측으로부터 상기 P개의 송신 안테나에 대한 피드백 정보만을 수신하도록 구성된 제어 유닛을 포함하며,상기 P개의 스트림은 각각 상기 P개의 송신 안테나에 대해 개별적으로 선택되는 변조 및 코드 조합 중에서 대응되는 변조 및 코드 조합으로 처리되는, 다중입력 다중출력(MIMO; Multi-Input and Multi-Output) 시스템.
- 제14항에 있어서,상기 채널 상태 정보는 SINR(Signal to Interference Noise Ratio)을 포함하는 것을 특징으로 하는 다중입력 다중출력 시스템.
- 제14항에 있어서, 상기 제어 유닛은,상기 M개의 송신 안테나 각각의 채널 상태 정보를 미리 지정된 기준과 비교하고, 상기 미리 지정된 기준과 같거나 높은 채널 품질 정보를 갖는 상기 P개의 송신 안테나를 선택적으로 선택하는 것을 특징으로 다중입력 다중출력 시스템.
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
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KR1020030068307A KR100995031B1 (ko) | 2003-10-01 | 2003-10-01 | 다중입력 다중출력 시스템에 적용되는 신호 전송 제어 방법 |
US10/946,342 US7929633B2 (en) | 2003-10-01 | 2004-09-22 | Method of controlling signal transmission in multi-input/multi-output system |
EP04774710A EP1668855B1 (en) | 2003-10-01 | 2004-09-24 | Method of controlling signal transmission in multi-input/multi-output system |
AT04774710T ATE406743T1 (de) | 2003-10-01 | 2004-09-24 | Verfahren zur steuerung der signalübertragung in einem system mit mehreren eingängen und mehreren ausgängen |
CNA2004800286357A CN1864379A (zh) | 2003-10-01 | 2004-09-24 | 多输入/多输出系统中控制信号传输的方法 |
PCT/KR2004/002460 WO2005032154A2 (en) | 2003-10-01 | 2004-09-24 | Method of controlling signal transmission in multi-input/multi-output system |
EP08002667A EP1933492B1 (en) | 2003-10-01 | 2004-09-24 | Method of controlling signal transmission in multi-input/multi-output system |
AT08002667T ATE532285T1 (de) | 2003-10-01 | 2004-09-24 | Verfahren zur steuerung der signalübertragung in einem mehrfachein- bzw. mehrfachausgabesystem |
DE602004016189T DE602004016189D1 (de) | 2003-10-01 | 2004-09-24 | Verfahren zur steuerung der signalübertragung in einem system mit mehreren eingängen und mehreren ausgängen |
US12/127,212 US8031801B2 (en) | 2003-10-01 | 2008-05-27 | Method of controlling signal transmission in multi-input/multi-output system |
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KR1020030068307A KR100995031B1 (ko) | 2003-10-01 | 2003-10-01 | 다중입력 다중출력 시스템에 적용되는 신호 전송 제어 방법 |
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EP (2) | EP1668855B1 (ko) |
KR (1) | KR100995031B1 (ko) |
CN (1) | CN1864379A (ko) |
AT (2) | ATE406743T1 (ko) |
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WO2003047032A1 (en) * | 2001-11-29 | 2003-06-05 | Interdigital Technology Corporation | Efficient multiple input multiple output system for multi-path fading channels |
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CN1864379A (zh) | 2006-11-15 |
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