JP2012521145A - チャネル状態情報を有するレファレンス信号を送信するシステム - Google Patents
チャネル状態情報を有するレファレンス信号を送信するシステム Download PDFInfo
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- 239000000284 extract Substances 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims description 44
- 230000011664 signaling Effects 0.000 claims description 4
- 238000000605 extraction Methods 0.000 claims description 3
- 230000008054 signal transmission Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 19
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- 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
- H04L25/0224—Channel estimation using sounding signals
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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
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
- H04B7/2603—Arrangements for wireless physical layer control
- H04B7/2606—Arrangements for base station coverage control, e.g. by using relays in tunnels
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
レファレンス信号伝送システムは、基地局110、リレー130、マクロ端末機120及びリレー端末機140を含む。マクロ端末機120は、基地局110に直接接続し、基地局110から直接データを受信する。リレー端末機140は、リレー130に接続し、リレー130からデータを受信する。リレー130は、基地局110からデータを受信し、受信したデータをリレー端末機140にフォワーディングする。
リレー130は、基地局110からの信号を受信するために使用されるサブフレームをMBSFNサブフレームであると端末にシグナリングする。
図3で、横軸は、時間の経過を示し、縦軸は、周波数帯域を示す。基地局からのデータを受信するために、MBSFNとしてシグナリングされたサブフレーム300は、サブフレームの前方部の一部シンボル310を利用してレファレンス信号(RS)、PCFICH、PDCCH、PHICHなどの制御信号を伝送する。リレーは、前記MBSFNサブフレーム300の残りの区間を利用して基地局からの信号を受信する。
1)MBMSサービスのために指定されたMBSFNサブフレーム
2)データ受信用バックホールリンク(backhaul link)に使用されるダウンリンクサブフレーム
基地局900は、チャネル状態情報レファレンス信号パターン情報伝送部910及び伝送部920を含む。
リレー1000は、チャネル状態情報レファレンス信号パターン情報受信部1010、受信部1020、チャネル状態情報抽出部1030及びフィードバック部1040を含む。
端末機1100は、チャネル状態情報レファレンス信号パターン情報受信部1110、受信部1120、チャネル状態情報抽出部1130及びフィードバック部1140を含む。
Claims (15)
- 端末機またはリレーにサブフレームを伝送する基地局において、
前記サブフレームのうち、チャネル状態情報レファレンス信号を含むサブフレームに関する情報を端末機またはリレーに伝送するチャネル状態情報レファレンス信号パターン情報伝送部と;
前記サブフレームに関する情報を参照して前記端末機またはリレーに前記チャネル状態情報レファレンス信号及びデータを伝送する伝送部と、
を含む基地局。 - 前記チャネル状態情報レファレンス信号パターン情報伝送部は、
チャネル状態情報レファレンス信号を含むサブフレームに関する情報にチャネル状態情報レファレンス信号が伝送されるサブフレームの周期またはオフセットを含んで伝送することを特徴とする請求項1に記載の基地局。 - 前記チャネル状態情報レファレンス信号パターン情報伝送部は、
前記チャネル状態情報レファレンス信号が伝送されるサブフレームの周期またはオフセットを他のセルのサブフレームの周期またはオフセットと異なるように設定することを特徴とする請求項2に記載の基地局。 - 前記チャネル状態情報レファレンス信号パターン情報伝送部は、
前記サブフレームに関する情報を他のセルのサブフレームに関する情報と異なるように設定することを特徴とする請求項1に記載の基地局。 - 前記サブフレームに関する情報は、前記サブフレームの1つ以上の周期または1つ以上のオフセットを含むことを特徴とする請求項1に記載の基地局。
- 前記サブフレームに関する情報は、前記チャネル状態情報レファレンス信号を伝送しないように設定されたサブフレームの情報を含むことを特徴とする請求項1に記載の基地局。
- 前記サブフレームに関する情報は、データ受信用バックホールリンク(backhaul link)に使用されるダウンリンクサブフレーム情報を含むことを特徴とする請求項1に記載の基地局。
- 前記サブフレームに関する情報は、MBMSサービスのために設定されたMBSFNサブフレームの情報を含むことを特徴とする請求項1に記載の基地局。
- 前記チャネル状態情報レファレンス信号パターン情報は、前記サブフレームの識別子リスト、前記サブフレームの伝送与える及びオフセット、前記サブフレームに対するビットマップ、前記サブフレームからk個以後のサブフレームでチャネル状態情報レファレンス信号の存在有無を通知する情報のうち少なくとも1つ以上を含むことを特徴とする請求項1に記載の基地局。
- 前記伝送部は、データ受信用バックホールリンクに使用されるダウンリンクサブフレームでは、チャネル状態情報レファレンス信号を伝送しないことを特徴とする請求項1に記載の基地局。
- 前記伝送部は、MBMSサービスのために設定されたMBSFNサブフレームでは、チャネル状態情報レファレンス信号を伝送しないことを特徴とする請求項1に記載の基地局。
- 前記チャネル状態情報レファレンス信号パターン情報伝送部は、前記サブフレームに関する情報をリレーが受信することができる別途のチャネルを通じてシグナリングすることを特徴とする請求項1に記載の基地局。
- 前記チャネル状態情報レファレンス信号パターン情報伝送部は、前記サブフレームに関する情報をリレーのための制御チャネルまたはダウンリンク共有チャネル(downlink shared channel)を通じてシグナリングすることを特徴とする請求項12に記載の基地局。
- リレーにおいて、
基地局からチャネル状態情報レファレンス信号を含むサブフレームに関する情報を受信するチャネル状態情報レファレンス信号パターン情報受信部と;
前記サブフレームに関する情報を参照して前記基地局からチャネル状態情報レファレンス信号を受信する受信部と;
前記チャネル状態情報レファレンス信号を利用して前記基地局と前記リレーと間のチャネル状態情報を抽出するチャネル状態情報抽出部と;
前記抽出されたチャネル状態情報を基地局に伝送するフィードバック部と;
を含むリレー。 - 端末機において、
基地局からチャネル状態情報レファレンス信号を含むサブフレームに関する情報を受信するチャネル状態情報レファレンス信号パターン情報受信部と;
前記サブフレームに関する情報を参照して前記基地局からチャネル状態情報レファレンス信号を受信する受信部と;
前記チャネル状態情報レファレンス信号を利用して前記基地局と前記端末機間のチャネル状態情報を抽出するチャネル状態情報抽出部と;
前記抽出されたチャネル状態情報を基地局に伝送するフィードバック部と;
を含む端末機。
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KR20090023257 | 2009-03-18 | ||
KR10-2009-0023257 | 2009-03-18 | ||
KR10-2009-0024128 | 2009-03-20 | ||
KR20090024128 | 2009-03-20 | ||
KR20090024275 | 2009-03-23 | ||
KR10-2009-0024275 | 2009-03-23 | ||
KR10-2009-0094999 | 2009-10-07 | ||
KR20090094999 | 2009-10-07 | ||
PCT/KR2010/001696 WO2010107267A2 (ko) | 2009-03-18 | 2010-03-18 | 채널 상태 정보 레퍼런스 신호를 전송하는 시스템 |
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US (4) | US10979185B2 (ja) |
EP (2) | EP3229396B1 (ja) |
JP (1) | JP5487294B2 (ja) |
KR (1) | KR101269890B1 (ja) |
CN (2) | CN102428662B (ja) |
ES (1) | ES2637293T3 (ja) |
WO (1) | WO2010107267A2 (ja) |
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US10979185B2 (en) | 2021-04-13 |
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US20230179360A1 (en) | 2023-06-08 |
US20240204944A1 (en) | 2024-06-20 |
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US20210226753A1 (en) | 2021-07-22 |
US11588598B2 (en) | 2023-02-21 |
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