JP6518021B1 - 無線通信装置および無線通信方法 - Google Patents
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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
- H04B7/0452—Multi-user 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
- H04B7/06—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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- 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
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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
- H04B7/0617—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 for beam forming
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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
-
- 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
-
- 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
- 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
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0868—Hybrid systems, i.e. switching and combining
- H04B7/0874—Hybrid systems, i.e. switching and combining using subgroups of receive antennas
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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
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
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Abstract
Description
図1は、本発明の実施の形態1にかかる無線通信システム100の構成を示す図である。無線通信システム100は、無線基地局1と、無線端末2と、上位装置3とを有する。なお、本発明の無線通信装置の具体的な適用例を説明するために、図1では、無線通信装置が無線基地局1である場合について例示している。
本発明の実施の形態2にかかる無線基地局1の構成は、図2に示した実施の形態1と同様であるため、ここでは説明を省略する。また、以下、図2に示した符号を用いて説明を行う。
図6は、本発明の実施の形態3にかかる無線基地局1aの構成を示す図である。無線基地局1aは、送信側ベースバンド処理部10と、複数のDAC11と、局部発振器12と、複数のミキサ13と、複数のPA14と、複数のアンテナ15と、受信側ベースバンド処理部16aと、複数のADC17と、複数のミキサ18と、複数のLNA19と、MAC処理部20aと、ビーム形状制御処理部21とを有する。
Claims (7)
- アナログビームフォーミングとデジタルプリコーディング処理とを組み合わせたハイブリッドビームフォーミング方式を用いて、複数の対向する無線通信装置である対向装置へ送信する信号を同一周波数で空間多重して同時に伝送可能な送受信部と、
複数の前記対向装置のそれぞれからフィードバックされるチャネル状態情報に基づいて、複数の前記対向装置のそれぞれに割り当てる送信アレイ数と、複数の前記対向装置のそれぞれに送信するチャネル状態推定用の参照信号の送信数とを決定する制御部と、
を備え、
1つの前記対向装置に対して割り当てる前記送信アレイ数と前記参照信号の送信数とは同数であることを特徴とする無線通信装置。 - 前記制御部は、未だ前記送信アレイ数および送信する参照信号の数を割り当てていない新規の前記対向装置には、当該対向装置がサポートする最大ストリーム数に基づいて、前記送信アレイ数および前記参照信号の送信数を割り当てて、前記チャネル状態情報を取得した後、取得したチャネル状態情報に基づいて、前記送信アレイ数および参照信号の送信数を決定することを特徴とする請求項1に記載の無線通信装置。
- 前記制御部は、予め定められた条件が満たされたタイミングで、前記対向装置への前記送信アレイ数および参照信号の送信数の追加割り当てを行うことを特徴とする請求項1または2に記載の無線通信装置。
- 前記制御部は、前記チャネル状態情報に基づいて、前記条件を変更することを特徴とする請求項3に記載の無線通信装置。
- 前記制御部は、前記チャネル状態情報から得られるチャネル状態を示す値の分散値を求め、前記分散値が閾値以上である場合、前記条件を変更することを特徴とする請求項4に記載の無線通信装置。
- 前記制御部は、前記チャネル状態情報に基づいて、複数の前記対向装置のそれぞれに割り当てる受信アレイ数をさらに決定することを特徴とする請求項1から5のいずれか1項に記載の無線通信装置。
- ハイブリッドビームフォーミング方式を用いて複数の対向する無線通信装置である対向装置と空間多重伝送可能な無線通信装置において、
複数の前記対向装置のそれぞれからフィードバックされるチャネル状態情報に基づいて、複数の前記対向装置のそれぞれに割り当てる送信アレイ数およびチャネル状態推定用の参照信号の送信数を決定するステップ、
を含み、
1つの前記対向装置に対して割り当てる前記送信アレイ数と前記参照信号の送信数とは同数であることを特徴とする無線通信方法。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/JP2018/019131 WO2019220594A1 (ja) | 2018-05-17 | 2018-05-17 | 無線通信装置および無線通信方法 |
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JP2019078679A Division JP2019201403A (ja) | 2019-04-17 | 2019-04-17 | 無線通信装置 |
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JP6518021B1 true JP6518021B1 (ja) | 2019-05-22 |
JPWO2019220594A1 JPWO2019220594A1 (ja) | 2020-06-11 |
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US (1) | US20210067223A1 (ja) |
EP (1) | EP3754861A4 (ja) |
JP (1) | JP6518021B1 (ja) |
CN (1) | CN112136279B (ja) |
WO (1) | WO2019220594A1 (ja) |
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EP4040600A1 (en) * | 2021-02-04 | 2022-08-10 | Urugus S.A. | Software-defined communication system and device |
EP4175191A1 (en) | 2021-11-02 | 2023-05-03 | Nokia Technologies Oy | Receiver apparatus and transmitter apparatus |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2015185953A (ja) * | 2014-03-20 | 2015-10-22 | 株式会社Nttドコモ | ビーム選択方法、基地局、およびユーザ装置 |
JP2016525808A (ja) * | 2013-05-01 | 2016-08-25 | エルジー エレクトロニクス インコーポレイティド | 無線通信システムにおいて分割ビームフォーミングのために端末がフィードバック情報を送信する方法及びそのための装置 |
WO2016152301A1 (ja) * | 2015-03-24 | 2016-09-29 | ソニー株式会社 | 装置 |
WO2016152315A1 (ja) * | 2015-03-24 | 2016-09-29 | ソニー株式会社 | 装置 |
WO2017022112A1 (ja) * | 2015-08-05 | 2017-02-09 | 三菱電機株式会社 | 無線通信装置 |
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KR20130127347A (ko) * | 2012-05-10 | 2013-11-22 | 삼성전자주식회사 | 아날로그 및 디지털 하이브리드 빔포밍을 통한 통신 방법 및 장치 |
US9203497B2 (en) | 2013-05-10 | 2015-12-01 | Samsung Electronics Co., Ltd. | Apparatus and method for selecting transmit and receive beam in a wireless communication system |
US9647735B2 (en) * | 2013-05-31 | 2017-05-09 | Intel IP Corporation | Hybrid digital and analog beamforming for large antenna arrays |
WO2015065155A1 (ko) * | 2013-11-04 | 2015-05-07 | 엘지전자 주식회사 | 무선 통신 시스템에서 신호를 전송하는 방법 및 장치 |
WO2016003133A1 (ko) * | 2014-07-03 | 2016-01-07 | 엘지전자 주식회사 | 무선 접속 시스템에서 다중 랭크 지원을 위한 하이브리드 빔포밍 방법 및 장치 |
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2018
- 2018-05-17 WO PCT/JP2018/019131 patent/WO2019220594A1/ja unknown
- 2018-05-17 EP EP18918540.8A patent/EP3754861A4/en not_active Withdrawn
- 2018-05-17 JP JP2018554120A patent/JP6518021B1/ja active Active
- 2018-05-17 CN CN201880093160.1A patent/CN112136279B/zh active Active
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- 2020-11-12 US US17/096,065 patent/US20210067223A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016525808A (ja) * | 2013-05-01 | 2016-08-25 | エルジー エレクトロニクス インコーポレイティド | 無線通信システムにおいて分割ビームフォーミングのために端末がフィードバック情報を送信する方法及びそのための装置 |
JP2015185953A (ja) * | 2014-03-20 | 2015-10-22 | 株式会社Nttドコモ | ビーム選択方法、基地局、およびユーザ装置 |
WO2016152301A1 (ja) * | 2015-03-24 | 2016-09-29 | ソニー株式会社 | 装置 |
WO2016152315A1 (ja) * | 2015-03-24 | 2016-09-29 | ソニー株式会社 | 装置 |
WO2017022112A1 (ja) * | 2015-08-05 | 2017-02-09 | 三菱電機株式会社 | 無線通信装置 |
Non-Patent Citations (1)
Title |
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小原辰徳 他: "5Gにおける高SHF帯・広帯域マルチユーザMassive MIMO伝送へのランクアダプテーションの適", 電子情報通信学会2016年総合大会講演論文集 通信1, JPN6018030932, 1 March 2016 (2016-03-01), pages 404, ISSN: 0003959722 * |
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Publication number | Publication date |
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EP3754861A1 (en) | 2020-12-23 |
US20210067223A1 (en) | 2021-03-04 |
CN112136279B (zh) | 2022-07-29 |
JPWO2019220594A1 (ja) | 2020-06-11 |
WO2019220594A1 (ja) | 2019-11-21 |
EP3754861A4 (en) | 2021-01-06 |
CN112136279A (zh) | 2020-12-25 |
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