JP2012147456A - 通信システムにおける信号の送受信方法及び装置 - Google Patents
通信システムにおける信号の送受信方法及び装置 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
- H04B7/0602—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
- H04B7/06—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
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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
- 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
- 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
- H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
-
- 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
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0025—Transmission of mode-switching indication
-
- 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
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0027—Scheduling of signalling, e.g. occurrence thereof
-
- 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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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
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- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
Abstract
【解決手段】異なる指向性を有する多数のミリ波アンテナを含む送信機が、少なくとも一つのミリ波アンテナを備えた受信機と信号を送受信する方法であって、多数のミリ波アンテナのうち選択可能なアンテナの数と送信アンテナの切り替えの可否を決定するための基準値を多重送信アンテナモード情報で前記受信機に送信する段階と、前記多重送信アンテナモード情報に含まれた基準値より受信信号の測定SNRが小さい場合に前記受信機から提供されるアンテナスイッチング指示子により既存と異なる指向性のミリ波アンテナを選択する段階と、前記受信機が既設定された複数の領域のうち受信信号の測定SNRが属する領域の値をインデックスとして生成及び伝送する変調モードインデックスを受信し、現在チャネル状態による変調モードで信号を伝送する段階と、を含む。
【選択図】図5
Description
105:受信機
201:変調部
203:スイッチング制御部
301:送受信部
305:スイッチング決定部
307:変調モード決定部
Claims (6)
- その結合が既設定された範囲の方位に対するアンテナのように見られるように各々互いに異なる指向性を有する多数のミリ波アンテナを含む送信機が、少なくとも一つのミリ波アンテナを備えた受信機と信号を送受信する方法であって、
前記含まれた多数のミリ波アンテナのうち選択可能なアンテナの数と送信アンテナの切り替えの可否を決定するための基準値を多重送信アンテナモード情報で前記受信機に送信する段階と、
前記多重送信アンテナモード情報に含まれた基準値より受信信号の測定SNRが小さい場合にのみ、前記受信機から提供されるアンテナスイッチング指示子を受信する場合、前記多数のミリ波アンテナのうち既存と異なる指向性のミリ波アンテナを選択する段階と、
前記受信機が既設定された複数の領域のうち受信信号の測定SNRが属する領域の値をインデックスとして生成及び伝送する変調モードインデックスを前記スイッチング指示子と同一であるかまたは異なるチャネルを介して受信し、現在チャネル状態による変調モードで信号を伝送する段階と、を含むことを特徴とする信号送受信方法。 - 前記受信機が提供する変調モードインデックスは、前記受信機により受信された信号のSNRが、変調モードの決定のための境界値、γTn(ここで、n=N、N−1、…、2)と比較して、前記SNRがγTn+1より小さく、γTnより大きい場合、nに決定されることを特徴とする、請求項1に記載の信号の送受信方法。
- 前記受信機が、前記送信機のアンテナの数ほど、アンテナスイッチング指示子を連続に前記送信機にフィードバックする場合、前記受信機は、前記送信機の多数のアンテナのうち、SNRが最も高いアンテナの情報を、前記送信機にフィードバックし、前記送信機は、SNRが最も高いアンテナを通じて信号を伝送することを特徴とする、請求項1に記載の信号の送受信方法。
- 少なくとも一つのミリ波アンテナを備えた受信機が、その結合が既設定された範囲の方位に対するアンテナのように見られるように各々互いに異なる指向性を有する多数のミリ波アンテナを含む送信機と信号を送受信する方法であって、
前記送信機から、前記含まれた多数のミリ波アンテナのうち選択可能なアンテナの数と送信アンテナの切り替えの可否を決定するための基準値を多重送信アンテナモード情報で受信する段階と、
前記受信された多重送信アンテナモード情報の基準値より前記送信機から受信される信号のSNRが小さい場合、他の指向性のアンテナを選択するように指示するアンテナスイッチング指示子を前記送信機に提供する段階と、
前記送信機から受信される信号のSNR測定を通じて既設定された複数の領域のうち前記測定SNRの属する領域の情報をインデックスとする変調モードインデックスを前記スイッチング指示子と同一であるか異なるチャネルを通じて前記送信機に伝送する段階と、を含むことを特徴とする信号送受信方法。 - 前記受信機は、前記送信機から受信した信号ののSNRが、変調モードの決定のための境界値、γTn(ここで、n=N、N−1、…、2)と比較して、前記受信信号のSNRがγTn+1より小さく、γTnより大きい場合、前記変調モードインデックスをnに決定されることを特徴とする、請求項4に記載の信号の送受信方法。
- 前記受信された多重送信アンテナモード情報上の送信機のアンテナの数ほど、前記スイッチング指示子を連続に送信する場合、測定されたSNRが最も高い送信機アンテナの情報を前記送信機に提供することを特徴とする、請求項4に記載の信号の送受信方法。
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KR10-2007-0009533 | 2007-01-30 | ||
KR20070009533 | 2007-01-30 |
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JP2009547165A Division JP5305408B2 (ja) | 2007-01-30 | 2008-01-18 | 通信システムにおける信号の送受信方法及び装置 |
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JP2012147456A true JP2012147456A (ja) | 2012-08-02 |
JP5305425B2 JP5305425B2 (ja) | 2013-10-02 |
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JP2012043452A Expired - Fee Related JP5305425B2 (ja) | 2007-01-30 | 2012-02-29 | 通信システムにおける信号の送受信方法及び装置 |
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US (1) | US8712341B2 (ja) |
EP (1) | EP2104982A4 (ja) |
JP (2) | JP5305408B2 (ja) |
KR (1) | KR100957854B1 (ja) |
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Cited By (1)
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JP7013664B2 (ja) | 2017-03-24 | 2022-02-01 | 富士フイルムビジネスイノベーション株式会社 | データ送信システムおよびプログラム |
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GB2514174B (en) * | 2013-05-17 | 2015-12-02 | Cambium Networks Ltd | Improvements to adaptive modulation |
US10038569B2 (en) * | 2016-03-29 | 2018-07-31 | Intel IP Corporation | Self-adapting baud rate |
CN107884792A (zh) * | 2016-09-29 | 2018-04-06 | 上海华测导航技术股份有限公司 | 一种gnss接收机天线信号切换装置及切换方法 |
KR101969149B1 (ko) * | 2017-08-21 | 2019-04-16 | 국방과학연구소 | 지향/무지향 복합 안테나 기반 기지국 장치 |
KR101989611B1 (ko) * | 2017-09-20 | 2019-06-17 | 성균관대학교산학협력단 | 듀얼 모드를 이용한 무선 전력전송장치, 무선 전력수신장치, 무선 전력송신방법, 무선 전력수신방법 및 무선 전력전송시스템과 그 기록 매체 |
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2008
- 2008-01-18 EP EP08704861.7A patent/EP2104982A4/en not_active Withdrawn
- 2008-01-18 WO PCT/KR2008/000328 patent/WO2008093948A1/en active Application Filing
- 2008-01-18 KR KR1020080005840A patent/KR100957854B1/ko not_active IP Right Cessation
- 2008-01-18 US US12/525,290 patent/US8712341B2/en not_active Expired - Fee Related
- 2008-01-18 JP JP2009547165A patent/JP5305408B2/ja not_active Expired - Fee Related
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2012
- 2012-02-29 JP JP2012043452A patent/JP5305425B2/ja not_active Expired - Fee Related
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JP7013664B2 (ja) | 2017-03-24 | 2022-02-01 | 富士フイルムビジネスイノベーション株式会社 | データ送信システムおよびプログラム |
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Publication number | Publication date |
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US20100075617A1 (en) | 2010-03-25 |
KR20080071488A (ko) | 2008-08-04 |
EP2104982A4 (en) | 2016-02-24 |
JP5305425B2 (ja) | 2013-10-02 |
WO2008093948A1 (en) | 2008-08-07 |
EP2104982A1 (en) | 2009-09-30 |
US8712341B2 (en) | 2014-04-29 |
JP5305408B2 (ja) | 2013-10-02 |
KR100957854B1 (ko) | 2010-05-14 |
JP2010517407A (ja) | 2010-05-20 |
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