JP6505702B2 - 拡張変調方式をサポートするデータ受信方法及び装置 - Google Patents
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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
- H04L27/2602—Signal structure
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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
- H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
- H04L1/0016—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy involving special memory structures, e.g. look-up tables
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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
- H04L1/0025—Transmission of mode-switching 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
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0028—Formatting
- H04L1/003—Adaptive formatting arrangements particular to signalling, e.g. variable amount of bits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
- H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
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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
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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
-
- 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
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/26—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service]
- H04W52/262—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service] taking into account adaptive modulation and coding [AMC] scheme
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Description
複数の(多重)CSI参照信号構成(Multiple CSI reference signal configurations)は、与えられたセル内で使用され得る。UEは、CSI参照信号の複数のセット(multiple sets)から構成されることができ、
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7.1.9 PDSCH資源マッピングパラメータ
与えられたサービングセルに対して送信モード10で構成されたUEは、上記UE及び上記与えられたサービングセルに対して意図されたDCIフォーマット2Dを有する検出(探知)された(detected)PDCCH/EPDCCHに従ってPDSCHを復号化するためのシグナリングを行う上位層により、4個までのパラメータセットで構成されることができる。上記UEは、PDSCH REマッピング([3]の第6.3.5節で定義される)及びPDSCHアンテナポート擬似(準)コロケーション(quasi co-location)(第7.1.10節で定義される)を決定するための、DCIフォーマット2Dを有する検出されたPDCCH/EPDCCH内の「PDSCH REマッピング及び擬似コロケーション指示子(PDSCH RE Mapping and Quasi-Co-Location indicator)」フィールド(表7.1.9−1で定義されたマッピング)の値に応じて、上記パラメータセットを使用するであろう。対応するPDCCHがないPDSCHに対して、上記UEは、PDSCH REマッピング([3]の第6.3.5節で定義される)及びPDSCHアンテナポート擬似コロケーション(quasi co-location)(第7.1.10節で定義される)を決定するための、SPS活性化に対応するDCIフォーマット2Dを有するPDCCH/EPDCCH内で指示されたパラメータセットを使用するであろう。
送信モード1−10で構成されたUEは、サービングセルのアンテナポート0−3が、ドップラシフト、ドップラ拡散、平均遅延、平均利得及び遅延拡散(delay spread, Doppler spread, Doppler shift, average gain, and average delay)に関して、([3]で定義されたとおり)擬似コロケーション(quasi co-location)される(quasi co-located)と仮定することができる。
チャネル品質インジケータ(Channel Quality Indicator;CQI)、プリコーディング行列インジケータ(Precoding Matrix Indicator;PMI)、プリコーディングタイプインジケータ(Precoding Type Indicator;PTI)、及び/又はランクインジケータ(Rank Indication;RI)で構成されるCSIを報告するために、UEにより使用され得る時間及び周波数資源は、eNBにより制御される。[3]で与えられたような空間マルチプレックスのために、UEは、有用な送信レイヤ(層)(layers)の個数に対応するRIを決定すべきであろう。[3]で与えられたようなダイバーシチ(多様性)(diversity)を送信するために、RIは、1に等しい(equal to one)。
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Claims (10)
- 無線通信システムにおけるデータ受信方法であって、
無線機器が、複数のサブフレームのうち、拡張変調方式がサポートされる少なくとも1つの拡張サブフレームを指示する拡張サブフレーム情報を構成するステップと、
前記無線機器が、前記少なくとも1つの拡張サブフレームにおいて、前記拡張変調方式を指示する変調符号化方式(MCS)フィールドを有する下りリンク制御情報を下りリンク制御チャネル上で構成するステップと、
前記無線機器が、前記下りリンク制御情報に応じて、下りリンクデータを下りリンク共有チャネル上で受信するステップと、を有し、
前記拡張サブフレームと前記複数のサブフレームのうち前記拡張サブフレームでない非拡張サブフレームとで前記MCSフィールドのためのMCSテーブルが互いに異なる、データ受信方法。 - 前記拡張サブフレームは、変調次数8を有する変調方式をサポートし、前記非拡張サブフレームは、8より小さい変調次数を有する変調方式をサポートする、請求項1に記載のデータ受信方法。
- 前記拡張変調方式は、256直交振幅変調(QAM)を有する、請求項1に記載のデータ受信方法。
- 前記MCSフィールドは、前記拡張サブフレームと前記非拡張サブフレームとで互いに異なるビット数を有する、請求項2に記載のデータ受信方法。
- 前記MCSフィールドは、前記拡張サブフレームと前記非拡張サブフレームとで同じビット数を有する、請求項2に記載のデータ受信方法。
- 前記拡張サブフレーム情報は、複数の拡張フレームセットに関する情報を有し、
前記複数の拡張フレームセットの各々に対してMCSテーブルが定義される、請求項1に記載のデータ受信方法。 - 前記複数の拡張フレームセットのための複数のMCSテーブルの各々のうち少なくとも1つは、前記拡張変調方式を有する拡張MCSテーブルであり、
前記拡張MCSテーブルと関連付けられるチャネル品質インジケータ(CQI)テーブルは、前記拡張変調方式を有する、請求項6に記載のデータ受信方法。 - 無線通信システムにおける無線機器であって、
無線信号を送信及び受信する無線周波数(RF)部と、
前記RF部に接続されるプロセッサと、を備え、
前記プロセッサは、
複数のサブフレームのうち、拡張変調方式がサポートされる少なくとも1つの拡張サブフレームを指示する拡張サブフレーム情報を前記RF部を介して構成し、
前記少なくとも1つの拡張サブフレームにおいて、前記拡張変調方式を指示する変調符号化方式(MCS)フィールドを有する下りリンク制御情報を下りリンク制御チャネル上で前記RF部を介して構成し、
前記下りリンク制御情報に応じて、下りリンクデータを下りリンク共有チャネル上で前記RF部を介して受信し、
前記拡張サブフレームと前記複数のサブフレームのうち前記拡張サブフレームでない非拡張サブフレームとで前記MCSフィールドのためのMCSテーブルが互いに異なる、無線機器。 - 前記拡張サブフレームは、変調次数8を有する変調方式をサポートし、前記非拡張サブフレームは、8より小さい変調次数を有する変調方式をサポートする、請求項8に記載の無線機器。
- 前記拡張変調方式は、256直交振幅変調(QAM)を有する、請求項8に記載の無線機器。
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US20180324015A1 (en) | 2018-11-08 |
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