JP5159639B2 - 基地局装置およびマッピング方法 - Google Patents
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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
- H04L1/001—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding applied to control information
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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
- H04L1/0004—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes applied to control information
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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
- H04L1/0036—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the receiver
- H04L1/0038—Blind format detection
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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
- H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
- H04L1/04—Arrangements for detecting or preventing errors in the information received by diversity reception using frequency diversity
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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
- H04L27/2601—Multicarrier modulation systems
- H04L27/2626—Arrangements specific to the transmitter only
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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
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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
- H04L5/0037—Inter-user or inter-terminal allocation
- H04L5/0039—Frequency-contiguous, i.e. with no allocation of frequencies for one user or terminal between the frequencies allocated to another
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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
- H04L5/0037—Inter-user or inter-terminal allocation
- H04L5/0041—Frequency-non-contiguous
-
- 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
-
- 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
- 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
-
- 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
- H04L5/0094—Indication of how sub-channels of the path are allocated
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0203—Power saving arrangements in the radio access network or backbone network of wireless communication networks
- H04W52/0206—Power saving arrangements in the radio access network or backbone network of wireless communication networks in access points, e.g. base 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
- H04L5/0058—Allocation criteria
- H04L5/0064—Rate requirement of the data, e.g. scalable bandwidth, data priority
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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
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Description
ームにおけるデータチャネル数と同数のSCCHが同一時刻に多重される。
3GPP RAN WG1 Meeting document, R1-063177
本実施の形態に係る基地局100の構成を図2に示す。基地局100は、複数のSCCHを同一時刻に多重するものである。
は、周波数帯域毎の受信品質に基づいて行われるローカライズドマッピングが適している。
ングテーブル情報で示される図3のマッピングテーブルを参照して、4つの移動局各々への制御信号に対し4つのMCSの中からいずれか1つのMCSを選択する。すなわち、MCS設定部121は、ディストリビューテッドマッピングを設定された制御信号に対してはMCS1またはMCS2のMCSレベルが低いMCSを設定し、ローカライズドマッピングを設定された制御信号に対してはMCS3またはMCS4のMCSレベルが高いMCSを設定する。
に対しそれぞれ2種類ずつのMCSを対応させたが、ディストリビューテッドマッピング、ローカライズドマッピングの各々に対しそれぞれ1つずつのMCSを対応させてもよい。この場合、各移動局でのブラインド判定回数は、ローカライズドマッピングについて3回(SCCH1〜3)×3回(制御情報タイプ)×1回(MCS)=9回、ディストリビューテッドマッピングについて1回(SCCH4)×3回(制御情報タイプ)×1回(MCS)=3回の合計12回となり、制御信号に対する移動局での判定回数をさらに減少させることができる。なお、この場合、制御信号のMCSの設定にあたり、MCS設定部121での平均受信品質としきい値との比較は不要となる。
本実施の形態では、制御信号の情報内容に対応するマッピング方法に従って各制御信号を周波数領域の通信リソースにマッピングする。
に従って各制御信号を周波数領域の通信リソースにマッピングする。
報タイプ)×4回(MCS)=4回となり、制御信号に対する移動局での判定回数をさらに減少させることができる。
は、チャンクと称されることもある。また、CPは、ガードインターバル(Guard Interval:GI)と称されることもある。
Claims (10)
- 下り回線割当情報又は上り回線割当情報を含む制御チャネルを、周波数及び時間で定義されるリソースにマッピングするマッピング方法として、受信側の通信装置毎に、ディストリビューテッドマッピング及びローカライズドマッピングのいずれか一つを割り当てる設定手段と、
割り当てられた前記マッピング方法に従って前記制御チャネルをリソースにマッピングするマッピング手段と、
を具備し、
前記マッピング方法は、前記通信装置との間で予め決められ、前記下り回線割当情報を含む前記制御チャネルを前記リソースにマッピングするマッピング方法と、前記上り回線割当情報を含む前記制御チャネルを前記リソースにマッピングするマッピング方法とが異なり、
前記設定手段は、前記上り回線割当情報を含む前記制御チャネルに対して前記ディストリビューテッドマッピングを割り当てる、
基地局装置。 - 前記設定手段は、前記制御チャネルのMCSレベルに応じて、ディストリビューテッドマッピング及びローカライズドマッピングのいずれか一つを割り当てる、
請求項1記載の基地局装置。 - 前記設定手段は、前記制御チャネルがMIMO伝送用の割当情報を含むか含まないかに応じて、ローカライズドマッピング及びディストリビューテッドマッピングのいずれか一つを割り当てる、
請求項1又は2に記載の基地局装置。 - 前記制御チャネルの異なる複数のMCSレベルが、それぞれ、ディストリビューテッドマッピング及びローカライズドマッピングのいずれか一つと関連付けられている、
請求項1から3のいずれかに記載の基地局装置。 - 前記下り回線割当情報を含む前記制御チャネルと前記上り回線割当情報を含む前記制御チャネルとが、それぞれ、ディストリビューテッドマッピング及びローカライズドマッピングのいずれか一つと関連付けられている、
請求項1から4のいずれかに記載の基地局装置。 - 前記通信装置による前記制御チャネルに対するブラインド判定回数が所定値以下になるように、前記下り回線割当情報を含む前記制御チャネルと前記上り回線割当情報を含む前記制御チャネルとが、それぞれ、ディストリビューテッドマッピング及びローカライズドマッピングのいずれか一つと関連付けられている、
請求項1から5のいずれかに記載の基地局装置。 - 前記下り回線割当情報又は前記上り回線割当情報は、前記通信装置へのデータを割り当てたリソースブロックを示し、
前記制御チャネルは、前記通信装置のID及びMCS情報を含む、
請求項1から6のいずれかに記載の基地局装置。 - 前記ディストリビューテッドマッピングは、前記制御チャネルを周波数領域に分散してマッピングし、前記ローカライズドマッピングは、前記制御チャネルを周波数領域にまとめてマッピングする、
請求項1から7のいずれかに記載の基地局装置。 - 前記制御チャネルは、タイムスロット毎に前記リソースにマッピングされる、
請求項1から8のいずれかに記載の基地局装置。 - 下り回線割当情報又は上り回線割当情報を含む制御チャネルを、周波数及び時間で定義されるリソースにマッピングするマッピング方法として、受信側の通信装置毎に、ディストリビューテッドマッピング及びローカライズドマッピングのいずれか一つを割り当て、
割り当てられた前記マッピング方法に従って前記制御チャネルをリソースにマッピングし、
前記マッピング方法は、前記通信装置との間で予め決められ、前記下り回線割当情報を含む前記制御チャネルを前記リソースにマッピングするマッピング方法と、前記上り回線割当情報を含む前記制御チャネルを前記リソースにマッピングするマッピング方法とが異なり、
前記上り回線割当情報を含む前記制御チャネルに対して前記ディストリビューテッドマッピングを割り当てる、
マッピング方法。
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US20190305873A1 (en) | 2019-10-03 |
EP2104370A1 (en) | 2009-09-23 |
US20150078331A1 (en) | 2015-03-19 |
US8934418B2 (en) | 2015-01-13 |
US20170222748A1 (en) | 2017-08-03 |
WO2008084810A1 (ja) | 2008-07-17 |
US20180294915A1 (en) | 2018-10-11 |
US10038519B2 (en) | 2018-07-31 |
US10382162B2 (en) | 2019-08-13 |
EP2104370B1 (en) | 2020-08-12 |
US20100040003A1 (en) | 2010-02-18 |
EP2104370A4 (en) | 2014-04-16 |
JPWO2008084810A1 (ja) | 2010-05-06 |
US9660785B2 (en) | 2017-05-23 |
US10887044B2 (en) | 2021-01-05 |
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