JP2015222967A - リレー方式の通信システムにおける基準信号割り当て方法、並びにそれを用いたデータ送受信方法及び装置 - Google Patents
リレー方式の通信システムにおける基準信号割り当て方法、並びにそれを用いたデータ送受信方法及び装置 Download PDFInfo
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- JP2015222967A JP2015222967A JP2015136916A JP2015136916A JP2015222967A JP 2015222967 A JP2015222967 A JP 2015222967A JP 2015136916 A JP2015136916 A JP 2015136916A JP 2015136916 A JP2015136916 A JP 2015136916A JP 2015222967 A JP2015222967 A JP 2015222967A
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- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000004891 communication Methods 0.000 title abstract description 35
- 230000005540 biological transmission Effects 0.000 claims abstract description 104
- 125000004122 cyclic group Chemical group 0.000 claims description 4
- 230000008054 signal transmission Effects 0.000 abstract description 12
- 230000008859 change Effects 0.000 abstract description 2
- 230000010485 coping Effects 0.000 abstract 1
- 230000007704 transition Effects 0.000 description 22
- 238000010586 diagram Methods 0.000 description 16
- 238000005259 measurement Methods 0.000 description 8
- 238000013461 design Methods 0.000 description 5
- 230000001965 increasing effect Effects 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
- H04B7/15528—Control of operation parameters of a relay station to exploit the physical medium
- H04B7/15542—Selecting at relay station its transmit and receive resources
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
- H04B7/15557—Selecting relay station operation mode, e.g. between amplify and forward mode, decode and forward mode or FDD - and TDD mode
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
-
- 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
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
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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
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/042—Public Land Mobile systems, e.g. cellular systems
- H04W84/047—Public Land Mobile systems, e.g. cellular systems using dedicated repeater stations
-
- 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
- H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Multimedia (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Relay Systems (AREA)
- Telephonic Communication Services (AREA)
Abstract
Description
Claims (5)
- 無線接続システムにおけるリレーノードによりダウンリンク基準信号を受信する方法であって、
第1スロットと第2スロットを含むダウンリンクサブフレームを基地局から受信する段階を含み、
前記第1スロット及び前記第2スロットのそれぞれは、基地局からリレーノードへの送信シンボルを含み、
前記ダウンリンクサブフレームのサブフレーム境界は前記基地局と前記リレーノードにより時間整列され、
前記ダウンリンク基準信号は前記ダウンリンクサブフレームにおけるOFDMの端部にマッピングされないことを特徴とする方法。 - 前記基地局からリレーノードへの送信シンボルの数は、前記サイクリック・プリフィックス(CP)がノーマルサイクリック・プリフィックスのとき、前記ダウンリンクサブフレームの前記第2のスロットにおいて、6である、請求項1に記載の方法。
- 前記ダウンリンク基準信号が前記ダウンリンクサブフレームの前記第2スロット内の最後のOFDMシンボルにマッピングされない、請求項1に記載の方法。
- 無線接続システムにおいてダウンリンク基準信号を受信する装置であって、
無線周波数ユニットと、
プロセッサを備え、
前記プロセッサは、第1スロットと第2スロットを含むダウンリンクサブフレームを基地局から受信するように構成され、
前記第1スロットと前記第2スロットのそれぞれは、基地局からリレーノードへの送信シンボルを含み、
前記ダウンリンクサブフレームのサブフレーム境界は前記基地局と前記リレーノードにより時間整列され、
前記ダウンリンク基準信号は前記ダウンリンクサブフレームにおけるOFDMの端部にマッピングされないことを特徴とする装置。 - 前記ダウンリンク基準信号は前記ダウンリンクサブフレームの前記第2のスロットにおける最後のOFDMシンボルにマッピングされない、
請求項4に記載の装置。
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US15397909P | 2009-02-20 | 2009-02-20 | |
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US (2) | US8565184B2 (ja) |
EP (1) | EP2400681B1 (ja) |
JP (3) | JP2012518363A (ja) |
KR (1) | KR101719995B1 (ja) |
CN (2) | CN106411384B (ja) |
WO (1) | WO2010095887A2 (ja) |
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Publication number | Publication date |
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WO2010095887A2 (ko) | 2010-08-26 |
KR101719995B1 (ko) | 2017-03-27 |
KR20110118619A (ko) | 2011-10-31 |
CN102326347A (zh) | 2012-01-18 |
JP6174633B2 (ja) | 2017-08-02 |
JP2012518363A (ja) | 2012-08-09 |
JP2014099871A (ja) | 2014-05-29 |
CN106411384B (zh) | 2019-10-18 |
US9801160B2 (en) | 2017-10-24 |
US20130272188A1 (en) | 2013-10-17 |
CN102326347B (zh) | 2016-07-06 |
JP5778745B2 (ja) | 2015-09-16 |
US20120134316A1 (en) | 2012-05-31 |
EP2400681B1 (en) | 2020-04-01 |
EP2400681A4 (en) | 2015-11-11 |
WO2010095887A3 (ko) | 2010-11-18 |
EP2400681A2 (en) | 2011-12-28 |
US8565184B2 (en) | 2013-10-22 |
CN106411384A (zh) | 2017-02-15 |
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