JP6975781B2 - 5g複数入力複数出力伝送のためのチャネル状態情報フレームワーク設計 - Google Patents
5g複数入力複数出力伝送のためのチャネル状態情報フレームワーク設計 Download PDFInfo
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- JP6975781B2 JP6975781B2 JP2019517294A JP2019517294A JP6975781B2 JP 6975781 B2 JP6975781 B2 JP 6975781B2 JP 2019517294 A JP2019517294 A JP 2019517294A JP 2019517294 A JP2019517294 A JP 2019517294A JP 6975781 B2 JP6975781 B2 JP 6975781B2
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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
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0636—Feedback format
- H04B7/0645—Variable feedback
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
- H04B7/0417—Feedback systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
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- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
Description
本出願は、「Generic CSI Framework Design for 5G MIMO」という名称の2016年9月29日に出願された米国仮特許出願第62/401,858号及び「CHANNEL STATE INFORMATION FRAMEWORK DESIGN FOR 5G MULTIPLE INPUT MULTIPLE OUTPUT TRANSMISSIONS」という名称の2016年12月12日に出願された米国非仮特許出願第15/376,377号に対する優先権を主張し、それらの出願は引用することによりその全体が本明細書の一部をなす。
としてチャネル共分散の構造によって識別される。上記式において、NV、NH、及びNUは、H、V、及びUドメインにおける自由度の数である。また、NV×NH×NUは、送信アンテナ(例えば、TX。ただし、アンテナは受信することもできるので、したがって、TXRXとも略称され得ることも留意される)の総数に等しい。3つのドメイン内のCSIフィードバックは、アンテナ構造(特に、アンテナ要素間の相関)並びにチャネル角発散に非常に関連するMIMOチャネル行列の共分散を特徴付ける。異なるドメインについて、H及びVドメインが、相関される距離内のアンテナ間のチャネル応答を表す、又は、Uドメインが、無相関アンテナの間のチャネル(例えば、異なるサブパネル、異なる交差偏波、又はさらに、異なる送信・受信ポイント(TRP:transmit-receive point)におけるアンテナ)の周りにある点で、CSIフィードバック型及び量子化法は異なる可能性がある。
Claims (17)
- ネットワークノードデバイスであって、
プロセッサと、
前記プロセッサによって実行されると、動作の実施を容易にする実行可能命令を記憶するメモリと、
を備え、前記動作は、
ユーザー機器が複数入力複数出力チャネルを水平ドメイン、垂直ドメイン、及び/又は無相関ドメインに分解したことを示す、該ユーザー機器から受信される信号に基づいて、前記ドメインを測定するために、前記ユーザー機器についてのチャネル状態情報参照信号リソースを前記ドメインのそれぞれについて構成することと、
前記ドメインの測定を容易にするために、前記ユーザー機器についての前記チャネル状態情報参照信号リソースを示すメッセージを前記ユーザー機器に送信することであって、該メッセージは、フィードバックフォーマットの群を含むことと、
前記ドメインのために構成される前記チャネル状態情報参照信号リソースを使用してチャネル状態情報参照信号を送信することと、
前記ユーザー機器からフィードバックを受信することであって、該フィードバックは、フィードバックフォーマットの前記群から選択されたフィードバックフォーマットを含むことと、
前記フィードバックの復号に基づいて、該ネットワークノードと前記ユーザー機器との間の伝送についての伝送プロトコルを含む伝送パラメーターを決定することと、
を含む、ネットワークノードデバイス。 - 前記動作は、前記伝送パラメーターを、前記ユーザー機器に送信することを更に含む、請求項1に記載のネットワークノードデバイス。
- 前記ユーザー機器はワイヤレスデバイスを含む、請求項1に記載のネットワークノードデバイス。
- 水平アンテナ要素及び垂直アンテナ要素を有するアンテナパネルを更に備える、請求項1に記載のネットワークノードデバイス。
- 前記フィードバックフォーマットは、前記ドメインについてのチャネル状態情報の指示子を含み、該指示子は前記伝送パラメーターを選択するために使用可能である、請求項1に記載のネットワークノードデバイス。
- 前記フィードバックフォーマットは、ネットワークノードデバイスと前記ユーザー機器との間のチャネルの品質に適用可能なチャネル品質の指示子を含む、請求項1に記載のネットワークノードデバイス。
- 前記フィードバックフォーマットは、前記ネットワークデバイスと前記ユーザー機器との間の異なる伝送の数を表すランク指示子を含む、請求項1に記載のネットワークノードデバイス。
- ユーザー機器であって、
プロセッサと、
前記プロセッサによって実行されると、動作の実施を容易にする実行可能命令を記憶するメモリと、
を備え、前記動作は、
複数入力複数出力チャネルを水平ドメイン、垂直ドメイン、及び/又は無相関ドメインに分解することと、
該ユーザー機器が前記複数入力複数出力チャネルを前記ドメインに分解したことを示すメッセージをネットワークノードデバイスに送信することと、
前記ネットワークノードデバイスから受信されるチャネル状態情報参照信号リソース構成に基づいて前記ドメインについてチャネル状態情報参照信号を測定することと、
前記ネットワークノードデバイスから受信されたフィードバックフォーマットの群からフィードバックフォーマットを選択することであって、該フィードバックフォーマットは、該ユーザー機器と前記ネットワークノードデバイスとの間の伝送のための伝送プロトコルに関連することと、
前記フィードバックフォーマットに準拠するフィードバックを前記ネットワークノードデバイスに送信することと、
を含む、ユーザー機器。 - 前記ネットワークノードデバイスに対する前記フィードバックフォーマットは、前記ドメインについてのチャネル状態情報の指示子を含み、該指示子は、前記ユーザー機器と前記ネットワークノードデバイスとの間の伝送のための伝送プロトコルを規定する伝送パラメーターの選択のために使用される、請求項8に記載のユーザー機器。
- チャネル状態情報の前記指示子は、前記ユーザー機器と前記ネットワークノードデバイスとの間の信号の伝送のための複数入力複数出力行列に関連するコードブックエントリーを示す、請求項9に記載の方法。
- 前記フィードバックフォーマットは、前記ネットワークノードデバイスとユーザー機器との間のチャネルの品質に適用可能なチャネル品質の指示子を含む、請求項8に記載のユーザー機器。
- 前記フィードバックフォーマットは、前記ネットワークノードデバイスと前記ユーザー機器との間の異なる伝送の数を表すランク指示子を含む、請求項8に記載のユーザー機器。
- ユーザー機器が複数入力複数出力チャネルを水平ドメイン、垂直ドメイン、及び/又は無相関ドメインに分解したことを示す、該ユーザー機器から受信される信号に基づいて、前記ドメインを測定するために、前記ユーザー機器についてのチャネル状態情報参照信号リソースを前記ドメインのそれぞれについて構成することと、
前記ドメインを測定するために、前記ユーザー機器についての前記チャネル状態情報参照信号リソースを示すメッセージを前記ユーザー機器に送信することであって、該メッセージは、フィードバックフォーマットの群を表すフォーマット情報を更に含むことと、
前記ドメインのために構成される前記チャネル状態情報参照信号リソース上でチャネル状態情報参照信号を送信することと、
前記ユーザー機器からフィードバックを受信することであって、該フィードバックは、フィードバックフォーマットの前記群から選択されるフィードバックフォーマットを含むことと、
前記フィードバックを復号して、復号されたフィードバックをもたらすことと、
前記復号されたフィードバックに基づいて、前記ユーザー機器への信号の伝送についての伝送プロトコルを含む伝送パラメーターを選択することと、
前記伝送パラメーターを前記ユーザー機器に送信することと、
を含む、方法。 - 前記フィードバックフォーマットは、前記ドメインについてのチャネル状態情報の指示子を含み、前記伝送パラメーターの選択は前記指示子に基づく、請求項13に記載の方法。
- チャネル状態情報の前記指示子は、前記ユーザー機器と前記ネットワークデバイスとの間の信号の伝送のための複数入力複数出力行列に関連するコードブックエントリーを示す、請求項14に記載の方法。
- 前記フィードバックフォーマットは、前記ネットワークデバイスと前記ユーザー機器との間の前記チャネルの品質に適用可能なチャネル品質の指示子を含む、請求項13に記載の方法。
- 前記フィードバックフォーマットは、前記ネットワークデバイスと前記ユーザー機器との間の或る数の異なる伝送を表すランク指示子を含む、請求項13に記載の方法。
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US201662401858P | 2016-09-29 | 2016-09-29 | |
US62/401,858 | 2016-09-29 | ||
US15/376,377 | 2016-12-12 | ||
US15/376,377 US10171214B2 (en) | 2016-09-29 | 2016-12-12 | Channel state information framework design for 5G multiple input multiple output transmissions |
PCT/US2017/052582 WO2018063894A1 (en) | 2016-09-29 | 2017-09-20 | Channel state information framework design for 5g multiple input multiple output transmissions |
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