JP7342869B2 - 電子機器、無線通信方法及びコンピュータ読み取り可能な記録媒体 - Google Patents
電子機器、無線通信方法及びコンピュータ読み取り可能な記録媒体 Download PDFInfo
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- 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
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- H—ELECTRICITY
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- 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
- H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- 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
- H04B7/022—Site diversity; Macro-diversity
- 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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- 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
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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
- H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
- H04B7/046—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking physical layer constraints into account
- H04B7/0473—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking physical layer constraints into account taking constraints in layer or codeword to antenna mapping into account
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- 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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- 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
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- H04B7/0621—Feedback content
- H04B7/063—Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode selection
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- 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
- H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
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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
- H04B7/0639—Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
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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
- H04B7/0697—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 spatial multiplexing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- 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
- H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03891—Spatial equalizers
- H04L25/03898—Spatial equalizers codebook-based design
- H04L25/03929—Spatial equalizers codebook-based design with layer mapping, e.g. codeword-to layer design
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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
- H04L5/0032—Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
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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
- H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
- H04B7/0691—Hybrid systems, i.e. switching and simultaneous transmission using subgroups of transmit antennas
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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
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0045—Arrangements at the receiver end
- H04L1/0047—Decoding adapted to other signal detection operation
- H04L1/005—Iterative decoding, including iteration between signal detection and decoding operation
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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
- H04L5/0014—Three-dimensional division
- H04L5/0023—Time-frequency-space
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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
- H04L5/0094—Indication of how sub-channels of the path are allocated
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Description
第1のスキームでは、空間多重化層とコードワードとの間に所定のマッピング方式を有する。
第2のスキームでは、空間多重化層とコードワードとの間のマッピングは、送受信ポイント又はダウンリンクチャネル状態に基づいて確定される。
図25は、本開示の内容の技術を応用できるスマートフォン2500の概略的構成を示すブロック図である。スマートフォン2500は、プロセッサー2501、メモリ2502、記憶装置2503、外部接続インターフェース2504、撮像装置2506、センサ2507、マイクロフォン2508、入力装置2509、表示装置2510、スピーカー2511、無線通信インターフェース2512、一つ又は複数のアンテナスイッチ2515、一つ又は複数のアンテナ2516、バス2517、バッテリー2518及び補助コントローラー2519を含む。
図23は、本開示の技術を応用できるeNBの概略的構成の例を示すブロック図である。eNB2300は、一つ又は複数のアンテナ2310及び基地局デバイし2324を含む。基地局デバイス2324と各アンテナ2310はRFケーブルを介して互いに接続されてもよい。
トの存在又は添加を排除しない。
Claims (9)
- 処理回路を含む基地局側に用いられる電子機器であって、
前記処理回路は、
二つ又は二つよりも多い送受信ポイントを介して多入力多出力伝送を行い、
ユーザー機器に、前記二つ又は二つよりも多い送受信ポイントを介して伝送される空間多重化層とコードワードとの間のマッピングスキームに関連する指示情報を送信するように制御するように配置され、
前記二つ又は二つよりも多い送受信ポイントは、同一の送受信ポイントにおける非コヒーレント伝送を行う二つ又は二つよりも多いアンテナプレートを含み、
前記二つ又は二つよりも多い送受信ポイントのうち、一の送受信ポイントは、前記二つ又は二つよりも多いアンテナプレートのうち、一のアンテナプレートに対応する電子機器。 - 前記マッピングスキームは、第1のスキームと第2のスキームとから選択され、
前記第1のスキームでは、空間多重化層とコードワードとの間に所定のマッピング方式を有し、
前記第2のスキームでは、空間多重化層とコードワードとの間のマッピングが送受信ポイント又はダウンリンクチャネル状態に基づいて確定される請求項1に記載の電子機器。 - 前記マッピングスキームは、同一の送受信ポイントを介して伝送される空間多重化層を同一のコードワードに対応させることを含む請求項1に記載の電子機器。
- 前記処理回路は、
複数の物理ダウンリンク共有チャネルのそれぞれに対して、前記第1のスキームと前記第2のスキームとから当該物理ダウンリンク共有チャネルに用いられるマッピングスキームを確定するように配置される請求項2に記載の電子機器。 - 前記指示情報は、無線リソース制御シグナリング、媒体アクセス制御-制御要素シグナリング、物理層動的シグナリング、及びブロードキャストメッセージのうちの少なくとも一つにより送信される請求項1~4のいずれか一項に記載の電子機器。
- 前記物理層動的シグナリングは、ダウンリンク制御情報DCIを含み、且つ、前記ブロードキャストメッセージは、物理ブロードキャストチャネルを介して送信されるシステム通知を含む請求項5に記載の電子機器。
- 処理回路を含むユーザー装置用の電子機器であって、
前記処理回路は、
基地局による二つ又は二つよりも多い送受信ポイントを介した多入力多出力伝送を受信し、
前記基地局から、前記二つ又は二つよりも多い送受信ポイントを介して伝送される空間多重化層とコードワードとの間のマッピングスキームに関連する指示情報を受信するように、制御するように配置され、
前記二つ又は二つよりも多い送受信ポイントは、同一の送受信ポイントにおける非コヒーレント伝送を行う二つ又は二つよりも多いアンテナプレートを含み、
前記二つ又は二つよりも多い送受信ポイントのうち、一の送受信ポイントは、前記二つ又は二つよりも多いアンテナプレートのうち、一のアンテナプレートに対応する電子機器。 - ユーザー装置に用いられる無線通信方法であって、
基地局による二つ又は二つよりも多い送受信ポイントを介した多入力多出力伝送を受信することと、
前記基地局から、前記二つ又は二つよりも多い送受信ポイントを介して伝送される空間多重化層とコードワードとの間のマッピングスキームに関連する指示情報を受信することとを含み、
前記二つ又は二つよりも多い送受信ポイントは、同一の送受信ポイントにおける非コヒーレント伝送を行う二つ又は二つよりも多いアンテナプレートを含み、
前記二つ又は二つよりも多い送受信ポイントのうち、一の送受信ポイントは、前記二つ又は二つよりも多いアンテナプレートのうち、一のアンテナプレートに対応する無線通信方法。 - 情報処理装置により実行されると、請求項8に記載の方法を前記情報処理装置に実行させる実行可能な命令を含む、コンピュータ読み取り可能な記録媒体。
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WO2019114681A1 (zh) | 2019-06-20 |
EP3713120A4 (en) | 2020-12-30 |
EP3713120A1 (en) | 2020-09-23 |
US20220094402A1 (en) | 2022-03-24 |
CN111052648B (zh) | 2024-01-23 |
JP2021507599A (ja) | 2021-02-22 |
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KR102634411B1 (ko) | 2024-02-07 |
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