JP5902835B2 - 多元セルベースの無線通信システムにおける下りリンクデータチャネル受信方法及びそのための装置 - Google Patents
多元セルベースの無線通信システムにおける下りリンクデータチャネル受信方法及びそのための装置 Download PDFInfo
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- 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
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- H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
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Description
Claims (16)
- 無線通信システムにおいて端末が端末特定参照信号ベース下りリンクデータチャネルを受信する方法であって、
ネットワークから上位層を通じて前記端末特定参照信号の大規模特性を定義する一つ以上の設定に関する情報を受信するステップと、
前記ネットワークから、前記端末特定参照信号ベース下りリンクデータチャネルのための第1スケジュール情報及び第2スケジュール情報のいずれか一つを検出するステップと、
前記検出されたスケジュール情報に基づいて前記端末特定参照信号ベース下りリンクデータチャネルを受信するステップと、を有し、
前記第1スケジュール情報は、前記一つ以上の設定のうち一つを指示する指示子を含み、
前記端末特定参照信号の大規模特性は、前記第1スケジュール情報検出時に前記指示子によって指示される設定によって定義され、前記第2スケジュール情報検出時に前記一つ以上の設定のうち、デフォルト設定によって定義される、方法。 - 前記デフォルト設定は、前記一つ以上の設定のうち、最小インデクスの設定である、請求項1に記載の方法。
- 前記一つ以上の設定に関する情報は、前記端末特定参照信号と前記大規模特性が同一であると仮定可能な特定参照信号に関する情報を含む、請求項1に記載の方法。
- 前記一つ以上の設定に関する情報は、前記端末特定参照信号と大規模特性が同一であると仮定可能な特定参照信号がないという情報を含む、請求項1に記載の方法。
- 前記特定参照信号は、チャネル状態情報参照信号(CSI−RS)である、請求項3又は4に記載の方法。
- 前記特定参照信号に関する情報は、前記特定参照信号のリソース設定情報を指示する、請求項3に記載の方法。
- 前記大規模特性は、同期追跡のための周波数オフセット及びタイミングオフセットに関する情報である、請求項1に記載の方法。
- 前記大規模特性は、ドップラ拡散、ドップラシフト、平均遅延及び遅延拡散のうち少なくとも一つを含む、請求項1に記載の方法。
- 無線通信システムにおいてネットワークが端末特定参照信号ベース下りリンクデータチャネルを送信する方法であって、
上位層を通じて、前記端末特定参照信号の大規模特性を定義する一つ以上の設定に関する情報を端末に送信するステップと、
前記端末特定参照信号ベース下りリンクデータチャネルのための第1スケジュール情報及び第2スケジュール情報のいずれか一つを前記端末に送信するステップと、
前記端末特定参照信号ベース下りリンクデータチャネルを前記端末に送信するステップと、を有し、
前記第1スケジュール情報は、前記一つ以上の設定のうち一つを指示する指示子を含み、
前記端末特定参照信号の大規模特性は、前記第1スケジュール情報送信時に前記指示子によって指示される設定によって定義され、前記第2スケジュール情報送信時に前記一つ以上の設定のうちデフォルト設定によって定義される、方法。 - 前記デフォルト設定は、前記一つ以上の設定のうち最小インデクスの設定である、請求項9に記載の方法。
- 前記一つ以上の設定に関する情報は、前記端末特定参照信号と前記大規模特性が同一であると仮定可能な特定参照信号に関する情報を含む、請求項9に記載の方法。
- 前記一つ以上の設定に関する情報は、前記端末特定参照信号と大規模特性が同一であると仮定可能な特定参照信号がないという情報を含む、請求項9に記載の方法。
- 前記特定参照信号は、チャネル状態情報参照信号(CSI−RS)である、請求項11又は12に記載の方法。
- 前記特定参照信号に関する情報は、前記特定参照信号のリソース設定情報を指示する、請求項11に記載の方法。
- 前記大規模特性は、同期追跡のための周波数オフセット及びタイミングオフセットに関する情報である、請求項9に記載の方法。
- 前記大規模特性は、ドップラ拡散、ドップラシフト、平均遅延及び遅延拡散のうち少なくとも一つを含む、請求項9に記載の方法。
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