JP2014513483A - 無線通信システムにおけるcsi−rsに基づくチャネル推定方法及びそのための装置 - Google Patents
無線通信システムにおけるcsi−rsに基づくチャネル推定方法及びそのための装置 Download PDFInfo
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Abstract
【解決手段】本発明による方法は、基地局から、複数のアンテナポートによって規定されるCSI−RSの設定情報を受信するステップと、複数のアンテナポートのうち特定アンテナポートによって規定されたCSI−RSを結合するステップと、結合されたCSI−RSに基づいて、測定を行うステップと、を含むことを特徴とする。ここで、測定は、RSRP、RSRQ及び経路損失のうち少なくとも一つを含む。
【選択図】図12
Description
Claims (14)
- 無線通信システムにおいて端末が測定を行う方法であって、
基地局から、複数のアンテナポートによって規定されるチャネル状態情報基準信号(CSI−RS)の設定情報を受信するステップと、
前記複数のアンテナポートのうち、特定アンテナポートによって規定されたCSI−RSを結合するステップと、
前記結合されたCSI−RSに基づいて、測定を行うステップと、
を有する、方法。 - 前記測定を行うステップは、
前記結合されたCSI−RSに基づいて、基準信号受信電力(RSRP)、基準電力受信品質(RSRQ)及び経路損失のうち少なくとも一つを測定するステップを含む、請求項1に記載の方法。 - 前記特定アンテナポートによって規定されたCSI−RSは、前記基地局で同一のアンテナポートから送信される、請求項1に記載の方法。
- 前記基地局から、前記特定アンテナポートに関する情報を、上位層を介して受信するステップを更に有する、請求項1に記載の方法。
- 前記基地局から、前記特定アンテナポートによって規定されたCSI−RSを結合して測定を行うためのトリガ信号を受信するステップを更に有する、請求項1に記載の方法。
- 前記複数のアンテナポートで定義されるCSI−RSを用いてチャネル状態情報を前記基地局に報告するステップを更に有し、
前記チャネル状態情報の算出時に、前記複数のアンテナポートのうち、特定アンテナポートを一つのアンテナポートと仮定する、請求項1に記載の方法。 - 前記チャネル状態情報の算出時に、前記複数のアンテナポートのうち特定アンテナポートでは同一の干渉量が存在すると仮定する、請求項6に記載の方法。
- 無線通信システムにおける端末装置であって、
基地局から複数のアンテナポートで規定されるチャネル状態情報基準信号(CSI−RS)の設定情報を受信するための無線通信モジュールと、
前記複数のアンテナポートのうち、特定アンテナポートによって規定されたCSI−RSを結合し、該結合されたCSI−RSに基づいて測定を行うためのプロセッサと、
を備える端末装置。 - 前記プロセッサは、前記結合されたCSI−RSに基づいて、基準信号受信電力(RSRP)、基準信号受信品質(RSRQ)及び経路損失のうち少なくとも一つを測定する、請求項8に記載の端末装置。
- 前記特定アンテナポートによって規定されたCSI−RSは、前記基地局で同一のアンテナポートから送信される、請求項8に記載の端末装置。
- 前記無線通信モジュールは、前記基地局から、前記特定アンテナポートに関する情報を、上位層を介して受信する、請求項8に記載の端末装置。
- 前記無線通信モジュールは、前記基地局から、前記特定アンテナポートによって規定されたCSI−RSを結合して測定を行うためのトリガ信号を受信する、請求項8に記載の端末装置。
- 前記プロセッサは、前記複数のアンテナポートで定義されるCSI−RSを用いてチャネル状態情報を算出し、前記チャネル状態情報の算出時に、前記複数のアンテナポートのうち特定アンテナポートを一つのアンテナポートと仮定する、請求項8に記載の端末装置。
- 前記プロセッサは、前記チャネル状態情報の算出時に、前記複数のアンテナポートのうち特定アンテナポートでは同一の干渉量が存在すると仮定する、請求項13に記載の端末装置。
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PCT/KR2012/003475 WO2012157870A2 (ko) | 2011-05-13 | 2012-05-03 | 무선 통신 시스템에서 csi-rs에 기반한 채널 추정 방법 및 이를 위한 장치 |
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EP (2) | EP2709289A4 (ja) |
JP (2) | JP5912173B2 (ja) |
KR (1) | KR101929779B1 (ja) |
CN (2) | CN106850468B (ja) |
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JP2016154362A (ja) | 2016-08-25 |
KR20140012699A (ko) | 2014-02-03 |
WO2012157870A3 (ko) | 2013-01-24 |
KR101929779B1 (ko) | 2018-12-17 |
CN106850468A (zh) | 2017-06-13 |
CA2832634C (en) | 2016-08-30 |
CN103597753B (zh) | 2017-02-15 |
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US20160285652A1 (en) | 2016-09-29 |
US9344299B2 (en) | 2016-05-17 |
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