JP2010233260A - 端末および受信方法 - Google Patents
端末および受信方法 Download PDFInfo
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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
- H04L5/0057—Physical resource allocation for 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
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0026—Transmission of channel quality indication
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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
- 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
- H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
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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
- H04L5/0001—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
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0014—Three-dimensional division
- H04L5/0016—Time-frequency-code
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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
- H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
- H04L5/0046—Determination of how many bits are transmitted on different sub-channels
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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
- H04L5/0058—Allocation criteria
- H04L5/006—Quality of the received signal, e.g. BER, SNR, water filling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
-
- 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
- H04W88/08—Access point devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
【解決手段】制御部108は、通信端末装置から送られてきたCQI及び通信端末装置毎の要求伝送率情報に基づいて、送信データ系列1についてスケジューリングを行うことにより、送信データ系列1を品質が良好なサブキャリアに割り当てるとともに、送信データ系列2をあらかじめ決められているサブキャリアに割り当てる。チャネル割当部115は、制御部108から指示されたサブキャリアに送信データ系列1のデータを割り当てる。チャネル割当部116は、制御部108から指示されたサブキャリアに送信データ系列2のデータを割り当てる。
【選択図】図2
Description
図2は、本発明の実施の形態1に係る無線通信装置100の構成を示すブロック図である。
図8は、本発明の実施の形態2に係る無線通信装置700の構成を示すブロック図である。
図10は、本発明の実施の形態3に係る無線通信装置900の構成を示すブロック図である。
図12は、本発明の実施の形態4に係る無線通信装置1100の構成を示すブロック図である。
図15は、本発明の実施の形態5に係る無線通信装置1400の構成を示すブロック図である。
図18は、本発明の実施の形態6に係る無線通信装置1700の構成を示すブロック図である。
図19は、本発明の実施の形態7に係る無線通信装置1800構成を示すブロック図である。
本実施の形態では、上記実施の形態1〜実施の形態7の無線通信装置及び通信端末装置の構成において、周波数スケジューリングによりサブキャリアが割り当てられた通信端末装置は、制御局装置等の通信端末装置の上位局装置から指示されたサブキャリア数のCQIのみを生成して基地局装置に報告するようにする。
本実施の形態に係る無線通信装置は、前記実施の形態3の構成において、受信信号より通信相手の移動速度を推定する移動速度推定手段を具備し、前記サブキャリア割り当て手段は、前記移動速度推定手段により推定された移動速度が所定のしきい値以上の通信相手に送信する第1データをスケジューリングにより選択されたサブキャリアに割り当て、一方前記移動速度推定手段により推定された移動速度が前記所定のしきい値未満の通信相手に送信する第2データをあらかじめ決められたサブキャリアに割り当てる。
本実施の形態に係る無線通信装置は、前記実施の形態1の構成において、前記サブキャリア割り当て手段は、通信帯域幅内の所定周波数間隔毎の複数のサブキャリアに第2データを割り当てる。
本実施の形態に係る無線通信装置は、前記実施の形態1の構成において、サブキャリア割り当て手段は、受信品質情報と変調方式とが関係付けられた変調方式情報を保存する参照テーブルを保持し、通信相手の受信品質情報を用いて各サブキャリアの変調方式を選択するとともに、要求伝送率情報より各通信相手の要求伝送率を満たすようにスケジューリングにより第1データをサブキャリアに割り当てる。
Claims (3)
- 基地局装置の周波数スケジューリングによって周波数割り当てを受けて通信をする端末であって、
受信した制御情報を用いて、基地局装置が前記端末に対し新たに周波数を割り当てたことを判定する判定部と、
前記制御情報を受信し、さらに、
前記判定が肯定のとき、前記制御情報に含まれる新たに割り当てられた周波数に関する情報が示す周波数を用いて、前記制御情報に含まれる符号化率、変調方式に関する情報が示す符号化率、変調方式により符号化、変調されたデータを受信し、
前記判定が否定のとき、前記端末に対し予め割り当てられた周波数を用いて、予め決められた符号化率、変調方式により符号化、変調された前記データを受信する受信部と、
を有する端末。 - 基地局装置の周波数スケジューリングによって周波数割り当てを受けて情報を受信する受信方法であって、
制御情報を受信し、
受信した前記制御情報を用いて、基地局装置が端末に対し新たに周波数を割り当てたことを判定し、
前記判定が肯定のとき、前記制御情報に含まれる新たに割り当てられた周波数に関する情報が示す周波数を用いて、前記制御情報に含まれる符号化率、変調方式に関する情報が示す符号化率、変調方式により符号化、変調されたデータを受信し、
前記判定が否定のとき、前記端末に対し予め割り当てられた周波数を用いて、予め決められた符号化率、変調方式により符号化、変調された前記データを受信する、
受信方法。 - 基地局装置の周波数スケジューリングによって周波数割り当てを受けて通信をする端末であって、
制御情報に含まれる新たに割り当てられた周波数に関する情報が示す周波数を用いて、前記制御情報に含まれる符号化率、変調方式に関する情報が示す符号化率、変調方式により符号化、変調されたデータを受信する端末。
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JP2009235114A Pending JP2010022041A (ja) | 2003-08-20 | 2009-10-09 | 基地局装置及び送信方法 |
JP2010156824A Pending JP2010233260A (ja) | 2003-08-20 | 2010-07-09 | 端末および受信方法 |
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EP (1) | EP1646170B1 (ja) |
JP (4) | JPWO2005020488A1 (ja) |
KR (5) | KR101160134B1 (ja) |
CN (2) | CN1853367B (ja) |
BR (1) | BRPI0413705B1 (ja) |
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WO2003001761A1 (en) * | 2001-06-22 | 2003-01-03 | Qualcomm Incorporated | Method and apparatus for transmitting data in a time division duplex system |
JP2003198651A (ja) * | 2001-12-27 | 2003-07-11 | Mitsubishi Electric Corp | 最大ドップラー周波数推定装置および適応変調無線通信装置 |
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