JP2015109668A - 多重アンテナ及びサウンディングレファレンス信号ホッピングを使用する上向きリンク無線通信システムにおけるサウンディングレファレンス信号伝送方法及び装置 - Google Patents
多重アンテナ及びサウンディングレファレンス信号ホッピングを使用する上向きリンク無線通信システムにおけるサウンディングレファレンス信号伝送方法及び装置 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
- 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
- H04B7/0684—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 using different training sequences per antenna
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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
- 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
- H04B1/713—Spread spectrum techniques using frequency hopping
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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
- H04B7/0891—Space-time diversity
- H04B7/0897—Space-time diversity using beamforming per multi-path, e.g. to cope with different directions of arrival [DOA] at different multi-paths
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0014—Three-dimensional division
- H04L5/0016—Time-frequency-code
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- H—ELECTRICITY
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- 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
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- H—ELECTRICITY
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- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
- H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
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- H—ELECTRICITY
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- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
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Abstract
【解決手段】多重アンテナ及びサウンディングレファレンス信号ホッピングを使用する通信システムにおける端末のSRS伝送方法において、前記SRSの伝送時点を確認する段階と、前記SRSを伝送する伝送帯域を設定する段階と、基地局に伝送するSRSを生成する段階と、前記SRSを伝送するアンテナインデックスを決定する段階と、前記決定されたアンテナインデックスによって前記基地局に前記SRSを伝送する段階と、を含み、前記アンテナインデックスは、伝送時点、前記端末に割り当てられたSRS伝送帯域の数、及びSRS帯域の設定に基づく関数により決定されることを特徴とする。
【選択図】図5
Description
実施例1では、LTEシステムで端末が2つのアンテナを有する場合、本発明によるSRS伝送アンテナパターンを説明する。
図9を参照すれば、端末は、基地局からSRS伝送に必要なパラメータ(SRS伝送周期、周波数割当位置など)をシグナリングされる(900)。端末は、これらパラメータに基づいて現在伝送がSRS伝送時点であるか否かを判断する(901)。SRS伝送時点ではない場合、端末は、SRS生成器をオフとし(902)、その代わりにデータ/制御情報伝送過程903を進行するようになる。仮にSRS伝送時点として判断されれば、端末は、前記SRSシーケンス生成部701、前記循環遷移部702を利用して基地局に伝送するSRSを生成する。このために、端末は、まず、SRSシーケンス生成部を作動(904)させ、ここで生成されたSRSシーケンスを循環遷移(905)させ、他の端末とのコードドメインマルチプレックシングが可能にする。
図10を参照すれば、基地局は、端末から受信した時点がSRSが送信される時点であるか否かを判別(1000)する。SRS受信時点ではなければ、基地局は、データ/制御情報受信手続(1001)を進行するようになる。
実施例2は、LTE−Advancedシステムのように端末が2つより多い伝送アンテナを有する場合、本発明によるSRS伝送アンテナパターンを説明する。
101 スロット
102 シンボル
103 RB
104 データ領域
105 制御領域
Claims (1)
- 多重アンテナ及びサウンディングレファレンス信号(Sounding Reference Signal;SRS)ホッピングを使用する通信システムにおける端末のSRS伝送方法において、
前記SRSの伝送時点を確認する段階と、
前記SRSを伝送する伝送帯域を設定する段階と、
基地局に伝送するSRSを生成する段階と、
前記SRSを伝送するアンテナインデックスを決定する段階と、
前記決定されたアンテナインデックスによって前記基地局に前記SRSを伝送する段階と、を含み、
前記アンテナインデックスは、伝送時点、前記端末に割り当てられたSRS伝送帯域の数、及びSRS帯域の設定に基づく関数に基づいて0110、1001又は01の中から選ばれ、
ここで、0は、第1アンテナインデックスであり、1は、第2アンテナインデックスであり、
前記アンテナインデックスは、
前記端末が、全体データ伝送帯域を通じて各アンテナに対して前記SRSを伝送できるように決定されることを特徴とするSRS伝送方法。
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KR10-2008-0058581 | 2008-06-20 | ||
KR20080058581 | 2008-06-20 | ||
KR1020080061952A KR101441500B1 (ko) | 2008-06-20 | 2008-06-27 | 다중 안테나 및 사운딩 레퍼런스 신호 호핑을 사용하는상향링크 무선 통신 시스템에서의 사운딩 레퍼런스 신호전송 장치 및 방법 |
KR10-2008-0061952 | 2008-06-27 |
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JP2011514498A Active JP5426669B2 (ja) | 2008-06-20 | 2009-06-18 | 多重アンテナ及びサウンディングレファレンス信号ホッピングを使用する上向きリンク無線通信システムにおけるサウンディングレファレンス信号伝送方法及び装置 |
JP2013242653A Active JP5678166B2 (ja) | 2008-06-20 | 2013-11-25 | 多重アンテナ及びサウンディングレファレンス信号ホッピングを使用する上向きリンク無線通信システムにおけるサウンディングレファレンス信号伝送方法及び装置 |
JP2014264584A Active JP5914628B2 (ja) | 2008-06-20 | 2014-12-26 | 多重アンテナ及びサウンディングレファレンス信号ホッピングを使用する上向きリンク無線通信システムにおけるサウンディングレファレンス信号伝送方法及び装置 |
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JP2013242653A Active JP5678166B2 (ja) | 2008-06-20 | 2013-11-25 | 多重アンテナ及びサウンディングレファレンス信号ホッピングを使用する上向きリンク無線通信システムにおけるサウンディングレファレンス信号伝送方法及び装置 |
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EP (2) | EP2493089B1 (ja) |
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KR (1) | KR101441500B1 (ja) |
CN (2) | CN103490872B (ja) |
AU (1) | AU2009261047B2 (ja) |
CA (1) | CA2727699C (ja) |
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