KR100909973B1 - 무선 통신 시스템 - Google Patents
무선 통신 시스템 Download PDFInfo
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- KR100909973B1 KR100909973B1 KR1020027017654A KR20027017654A KR100909973B1 KR 100909973 B1 KR100909973 B1 KR 100909973B1 KR 1020027017654 A KR1020027017654 A KR 1020027017654A KR 20027017654 A KR20027017654 A KR 20027017654A KR 100909973 B1 KR100909973 B1 KR 100909973B1
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/24—Multipath
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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
- 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
- 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
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
- H04L5/0055—Physical resource allocation for ACK/NACK
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
- H04W40/12—Communication route or path selection, e.g. power-based or shortest path routing based on transmission quality or channel quality
- H04W40/125—Communication route or path selection, e.g. power-based or shortest path routing based on transmission quality or channel quality using a measured number of retransmissions as a link metric
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/38—TPC being performed in particular situations
- H04W52/48—TPC being performed in particular situations during retransmission after error or non-acknowledgment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access, e.g. scheduled or random access
- H04W74/002—Transmission of channel access control information
- H04W74/004—Transmission of channel access control information in the uplink, i.e. towards network
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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
- H04B7/0617—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
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
Abstract
Description
Claims (11)
- 적어도 2개의 안테나들을 갖는 1차 스테이션 및 적어도 하나의 안테나를 각각 갖는 적어도 2개의 2차 스테이션들을 포함하는 무선 통신 시스템에 있어서,상기 1차 스테이션은 상기 1차 스테이션의 안테나들의 상호 배타적인 서브세트들 각각으로부터 상기 1차 스테이션과 제 1 및 제 2의 2차 스테이션들간의 각 통신 채널들을 송신하기 위한 송신기 수단을 포함하고, 상기 송신기 수단은 상기 서브세트들에 포함된 상기 안테나들 각각으로부터 기지의(known) 신호들을 송신하도록 구성되어, 2차 스테이션이 상기 1차 스테이션 안테나들과 상기 2차 스테이션 안테나들 간의 무선 채널들을 특징지을 수 있도록 하며, 상기 제 1 및 제 2의 2차 스테이션들은 두 서브세트들의 상기 1차 스테이션 안테나들의 통신 가능 영역 내에 있고, 상기 기지의 신호들을 이용한 상기 1차 스테이션과 상기 2차 스테이션 간의 통신의 결과로서, 상기 각 채널들은 안테나들의 상기 각 서브세트들에 의해서만 구별되고, 상기 제 1 및 제 2의 2차 스테이션들 각각은 수신된 신호들로부터 각 통신 채널을 포함하는 신호들의 서브세트를 추정하도록 구성되는 수신기 수단을 포함하는, 무선 통신 시스템.
- 제 1 항에 있어서,상기 1차 스테이션의 안테나들의 서브세트들 중 하나는 적어도 2개의 안테나들을 포함하고, 상기 서브세트로부터 각 2차 스테이션으로의 송신에 다중 입력 다중 출력 기술들을 사용하는 것을 특징으로 하는, 무선 통신 시스템.
- 제 1 항 또는 제 2 항에 있어서,상기 시스템은 상기 1차 스테이션과, 상기 2차 스테이션들 중 하나의 스테이션 간에 다른 통신 채널을 포함하고, 상기 채널은 채널이 송신되는 안테나들의 서브세트 뿐만 아니라 주파수, 타임슬롯, 및 코드에 의해서도 구별될 수 있는 것을 특징으로 하는, 무선 통신 시스템.
- 적어도 2개의 2차 스테이션들을 갖는 무선 통신 시스템에 사용하기 위한 적어도 2개의 안테나들을 갖는 1차 스테이션에 있어서,상기 1차 스테이션의 안테나들의 상호 배타적인 서브세트들 각각으로부터 상기 1차 스테이션과 제 1 및 제 2의 2차 스테이션들간의 각 통신 채널들을 송신하기 위한 송신기 수단을 포함하고, 상기 송신기 수단은 상기 서브세트들에 포함된 상기 안테나들 각각으로부터 기지의(known) 신호들을 송신하도록 구성되어, 2차 스테이션이 상기 1차 스테이션 안테나들과 상기 2차 스테이션 안테나들 간의 무선 채널들을 특징지을 수 있도록 하며, 상기 제 1 및 제 2의 2차 스테이션들은 두 서브세트들의 상기 1차 스테이션 안테나들의 통신 가능 영역 내에 있고, 상기 기지의 신호들을 이용한 상기 1차 스테이션과 상기 2차 스테이션 간의 통신의 결과로서, 상기 각 채널들은 안테나들의 상기 각 서브세트들에 의해서만 구별되는, 1차 스테이션.
- 삭제
- 제 4 항 에 있어서,수신된 신호들의 품질에 관한 정보를 제공하는 신호들을 상기 2차 스테이션들로부터 수신하는 수신기 수단을 특징으로 하며, 상기 송신기 수단은 각 서브세트에 어떤 안테나들을 할당할지를 결정하기 위해 상기 정보를 사용하도록 구성되는 것을 특징으로 하는, 1차 스테이션.
- 2차 스테이션으로서, 적어도 2개의 안테나들을 갖는 1차 스테이션과 상기 2차 스테이션 및 다른 2차 스테이션간에 각 통신 채널들을 갖는 무선 통신 시스템에 사용하기 위한 적어도 하나의 안테나를 갖는, 상기 2차 스테이션에 있어서,상기 통신 채널들은 상기 1차 스테이션의 안테나들의 상호 배타적인 서브세트들 각각으로부터 송신되고, 상기 2차 스테이션 및 상기 다른 2차 스테이션은 두 서브세트들의 상기 1차 스테이션 안테나들의 통신 가능 영역 내에 있고, 상기 2차 스테이션은 상기 1차 스테이션으로부터의 기지의 신호를 이용하여 상기 1차 스테이션 안테나들과 상기 2차 스테이션 안테나들 간의 무선 채널들을 특징지으며, 상기 기지의 신호들을 이용한 상기 1차 스테이션과 상기 2차 스테이션 간의 통신의 결과로서, 상기 각 채널들은 안테나들의 상기 각 서브세트들에 의해서만 구별되고, 상기 2차 스테이션은 송신된 통신 채널 신호들을 수신하기 위한 수신기 수단을 포함하고, 상기 수신기 수단은 수신된 신호들로부터 상기 2차 스테이션의 각 통신 채널을 포함하는 신호들의 서브세트를 추정하도록 구성되는, 2차 스테이션.
- 제 7 항에 있어서,상기 수신기 수단은, 안테나들의 각 서브세트에 포함되지 않은 1차 스테이션의 안테나들로부터 송신된 신호들과는 별개로, 각 통신 채널을 포함하는 상기 신호들을 분해하도록 구성되는 것을 특징으로 하는, 2차 스테이션.
- 제 7 항 또는 제 8 항에 있어서,안테나들의 상기 각 서브세트 이외의 어떠한 구별 특징들을 갖지 않는 채널들을 송신하는, 상기 상호 배타적인 서브세트들에 포함된 1차 스테이션 안테나들의 총 수 만큼의 적어도 다수의 안테나들을 포함하는 것을 특징으로 하는, 2차 스테이션.
- 제 7 항 또는 제 8 항에 있어서,상기 수신기 수단은 상기 1차 스테이션에 의해 송신된 신호들을 사용하여 적어도 하나의 무선 채널을 특징화하도록 구성되고, 상기 1차 스테이션에 상기 특징화의 결과들을 시그널링하기 위한 송신기 수단을 포함하는 것을 특징으로 하는, 2차 스테이션.
- 적어도 2개의 안테나들을 갖는 1차 스테이션 및 적어도 하나의 안테나를 각각 갖는 적어도 2개의 2차 스테이션들을 포함하는 무선 통신 시스템을 동작시키는 방법에 있어서,상기 1차 스테이션이 서브세트들에 포함된 안테나들 각각으로부터 상기 2차 스테이션으로 기지의 신호들을 송신하는 단계, 상기 2차 스테이션으로부터의 시그널링 메시지에 따라 상기 1차 스테이션의 안테나들의 상호 배타적인 서브세트들을 선택하는 단계, 및 상기 1차 스테이션의 안테나들의 상호 배타적인 서브세트들 각각으로부터 상기 1차 스테이션과 제 1 및 제 2의 2차 스테이션 간의 각 통신 채널들을 송신하는 단계를 포함하고, 상기 제 1 및 제 2의 2차 스테이션들 모두는 두 서브세트들의 상기 1차 스테이션 안테나들의 통신 가능 영역 내에 있고, 상기 기지의 신호들을 이용한 상기 1차 스테이션과 상기 2차 스테이션 간의 통신의 결과로서, 상기 각 채널들은 안테나들의 상기 각 서브세트들에 의해서만 구별되며, 상기 방법은, 각 2차 스테이션이 송신된 통신 채널 신호들을 수신하는 단계 및 수신된 신호들로부터 각 통신 채널을 포함하는 신호들의 서브세트를 추정하는 단계를 더 포함하는, 무선 통신 시스템을 동작시키는 방법.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
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GB0110125.2 | 2001-04-25 | ||
GBGB0110125.2A GB0110125D0 (en) | 2001-04-25 | 2001-04-25 | Radio communication system |
GB0122745.3 | 2001-09-21 | ||
GBGB0122745.3A GB0122745D0 (en) | 2001-04-25 | 2001-09-21 | Radio communication system |
PCT/IB2002/001355 WO2002087107A1 (en) | 2001-04-25 | 2002-04-16 | Radio communication system |
Publications (2)
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KR20030014730A KR20030014730A (ko) | 2003-02-19 |
KR100909973B1 true KR100909973B1 (ko) | 2009-07-29 |
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KR1020027017654A KR100909973B1 (ko) | 2001-04-25 | 2002-04-16 | 무선 통신 시스템 |
KR1020027017661A KR100918011B1 (ko) | 2001-04-25 | 2002-04-16 | 라디오 통신 시스템 |
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KR1020027017661A KR100918011B1 (ko) | 2001-04-25 | 2002-04-16 | 라디오 통신 시스템 |
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US (3) | US9178577B2 (ko) |
EP (1) | EP1386422B1 (ko) |
JP (1) | JP4229705B2 (ko) |
KR (2) | KR100909973B1 (ko) |
CN (1) | CN100490350C (ko) |
AT (1) | ATE410836T1 (ko) |
DE (2) | DE60229230D1 (ko) |
GB (2) | GB0110125D0 (ko) |
MX (1) | MXPA02012784A (ko) |
TW (1) | TW578395B (ko) |
WO (1) | WO2002087108A1 (ko) |
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JP4126058B2 (ja) * | 2003-06-18 | 2008-07-30 | 日本電信電話株式会社 | 無線パケット通信方法および無線パケット通信装置 |
JP4045286B2 (ja) * | 2003-06-18 | 2008-02-13 | 日本電信電話株式会社 | 無線パケット通信方法および無線パケット通信装置 |
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DE60225263T2 (de) | 2009-02-19 |
DE60229230D1 (de) | 2008-11-20 |
US20020159431A1 (en) | 2002-10-31 |
US9178577B2 (en) | 2015-11-03 |
WO2002087108A1 (en) | 2002-10-31 |
KR100918011B1 (ko) | 2009-09-18 |
EP1386422B1 (en) | 2008-10-08 |
KR20030014732A (ko) | 2003-02-19 |
CN100490350C (zh) | 2009-05-20 |
US20160029288A1 (en) | 2016-01-28 |
KR20030014730A (ko) | 2003-02-19 |
US9635599B2 (en) | 2017-04-25 |
JP4229705B2 (ja) | 2009-02-25 |
MXPA02012784A (es) | 2003-05-15 |
DE60225263D1 (de) | 2008-04-10 |
US20170230278A1 (en) | 2017-08-10 |
CN1462517A (zh) | 2003-12-17 |
GB0110125D0 (en) | 2001-06-20 |
JP2004520750A (ja) | 2004-07-08 |
EP1386422A1 (en) | 2004-02-04 |
GB0122745D0 (en) | 2001-11-14 |
TW578395B (en) | 2004-03-01 |
ATE410836T1 (de) | 2008-10-15 |
US10348613B2 (en) | 2019-07-09 |
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