JP6745741B2 - 無線通信システムにおける適応的ビームフォーミング装置及び方法 - Google Patents
無線通信システムにおける適応的ビームフォーミング装置及び方法 Download PDFInfo
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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
- H04B7/0408—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more beams, i.e. beam diversity
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- H—ELECTRICITY
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- 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
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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
- H04B7/0613—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
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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
- H04B7/06—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
- H04B7/0695—Hybrid systems, i.e. switching and simultaneous transmission using beam selection
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- 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
- H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
- H04B7/0842—Weighted combining
- H04B7/086—Weighted combining using weights depending on external parameters, e.g. direction of arrival [DOA], predetermined weights or beamforming
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
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- H04L1/00—Arrangements for detecting or preventing errors in the information received
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- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
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- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
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- H04W84/042—Public Land Mobile systems, e.g. cellular systems
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Description
受信ノードへの多数の基準信号の伝送のため少なくとも一つの送信ビームを適用するビームフォーミング部、前記受信ノードから望ましい送信ビームを指示する情報を受信し、ビーム変更要請を受信する受信部、
前記ビームフォーミング部および前記受信部を制御し、対応する送信ビームを通じて多数の基準信号を送信するように制御し、受信ノードから、前記基準信号に基づいて前記受信ノードにより生成された望ましい送信ビームを指示する情報を受信するように制御し、前記望ましい送信ビームを指示する情報に基づいて前記受信端への信号送信のための送信ビームとして第1送信ビームを決定し、前記第1送信ビームを用いて前記受信ノードに信号を送信するよう制御し、前記受信ノードからビーム変更要請を受信するように制御し、前記受信ノードへの信号送信のための送信ビームとして第2送信ビームを決定し、前記第2送信ビームを前記受信ノードへの信号送信のための送信ビームとして追加または変更する制御部を含む。
例えば、前記図3の場合、本発明は、送信ビーム-E325および受信ビーム-B332が最も大きな受信信号の強さを持つ望ましい送/受信ビームの対として選択されたことを仮定する。
前記表2に示すように、前記端末310は、受信ビーム-A331に対して送信ビーム-A321、送信ビーム-D324を好み、受信ビーム-B332に対して送信ビーム-C323、送信ビーム-E325、送信ビーム-F326を好み、受信ビーム-C333に対して送信ビーム-G327、送信ビーム-H328を好み、受信ビーム-F336に対して送信ビーム-F326が望ましい。ここで、前記端末310は、受信ビーム-D334、受信ビーム-E335に対してどのような送信ビームも好まない。
110 端末
120 ビーム
130 有効距離(x)
140 距離d
200 基地局
220 端末
230 端末
240 自動車
300 基地局
310 端末
400 基地局
410 端末
500 基地局
510 端末
820 ビームフォーミング部
830 チェーン
840 モデム
850 送信部
860 制御部
910 モデム
920 受信部
940 ビームフォーミング部
950 アンテナアレイ
960 制御部
Claims (20)
- 無線通信システムにおける受信ノードの動作方法であって、
送信ノードから前記送信ノードの第1送信ビームを介して送信されたデータ信号を前記受信ノードの受信ビームを介して受信する過程と、
ビームエラーが発生したことを検出する過程と、
前記受信ビームとペア(pair)にされた少なくとも1つの送信ビームのうち1つの第2送信ビームを用いることを要求する第1メッセージを前記送信ノードに送信する過程と、前記第2送信ビームの適用を知らせる第2メッセージを受信する過程と、を含み、
前記受信ビーム及び前記第1送信ビームは、ビームスウィーピング(beam sweeping)に基づいた周期的手順に従って決定され、
前記第2送信ビームは、前記ビームエラーによってトリガされる(triggered)非周期的手順に従って決定される方法。 - 前記第2送信ビームを介して送信された他のデータ信号を受信する過程をさらに含む請求項1に記載の方法。
- 前記第1送信ビームを介して送信された第1データ信号及び前記第2送信ビームを介して送信された第2データ信号を受信する過程をさらに含む請求項1に記載の方法。
- 前記受信ノードのために割り当てられた基準信号と異なる基準信号を用いて前記第2送信ビームを決定する過程をさらに含む請求項1に記載の方法。
- 前記データ信号のデコーディングが失敗すると、前記第2送信ビームを決定する過程をさらに含む請求項1に記載の方法。
- 前記周期的手順の間、多数の送信ビーム及び多数の前記受信ビームに対する測定結果に基づいて前記第1送信ビーム及び前記第2送信ビームを決定する過程をさらに含む請求項1に記載の方法。
- 前記ビームエラーの検出に応じて、多数の前記受信ビームに対する測定結果なしに前記第2送信ビームを決定する過程をさらに含む請求項1に記載の方法。
- 無線通信システムにおける送信ノードの動作方法であって、
受信ノードにデータ信号を前記送信ノードの第1送信ビームを介して送信する過程と、
第2送信ビームを用いることを要求する第1メッセージを前記受信ノードから受信する過程と、
前記第2送信ビームの適用を知らせる第2メッセージを送信する過程と、を含み、
前記データ信号は、前記受信ノードの受信ビームを介して前記受信ノードに受信され、
前記第2送信ビームは、前記受信ビームとペア(pair)にされた少なくとも1つの送信ビームのうち1つであって、
前記受信ビーム及び前記第1送信ビームは、ビームスウィーピング(beam sweeping)に基づいた周期的手順に従って決定され、
前記第2送信ビームは、ビームエラーによってトリガされる(triggered)非周期的手順に従って決定される方法。 - 前記第2送信ビームを介して他のデータ信号を送信する過程をさらに含む請求項8に記載の方法。
- 前記第1送信ビームを介して第1データ信号を、前記第2送信ビームを介して第2データ信号を送信する過程をさらに含む請求項8に記載の方法。
- 無線通信システムにおける受信ノード装置であって、
送受信部と、
前記送受信部と接続された制御部と、を含み、
前記制御部は、
送信ノードから前記送信ノードの第1送信ビームを介して送信されたデータ信号を受信ノードの受信ビームを介して受信し、
ビームエラーが発生したことを検出し、
前記受信ビームとペア(pair)にされた少なくとも1つの送信ビームのうち1つの第2送信ビームを用いることを要求する第1メッセージを前記送信ノードに送信し、前記第2送信ビームの適用を知らせる第2メッセージを受信するように制御し、
前記受信ビーム及び前記第1送信ビームは、ビームスウィーピング(beam sweeping)に基づいた周期的手順に従って決定され、
前記第2送信ビームは、前記ビームエラーによってトリガされる(triggered)非周期的手順に従って決定される装置。 - 前記送受信部は、前記第2送信ビームを介して送信された他のデータ信号を受信する請求項11に記載の装置。
- 前記送受信部は、前記第1送信ビームを介して送信された第1データ信号及び前記第2送信ビームを介して送信された第2データ信号を受信する請求項11に記載の装置。
- 前記制御部は、前記受信ノードのために割り当てられた基準信号と異なる基準信号を用いて前記第2送信ビームを決定する請求項11に記載の装置。
- 前記制御部は、前記データ信号のデコーディングが失敗すると、前記第2送信ビームを決定する請求項11に記載の装置。
- 前記制御部は、前記周期的手順の間、多数の送信ビーム及び多数の前記受信ビームに対する測定結果に基づいて前記第1送信ビーム及び前記第2送信ビームを決定する請求項11に記載の装置。
- 前記制御部は、前記ビームエラーの検出に応じて、多数の前記受信ビームに対する測定結果なしに前記第2送信ビームを決定する請求項11に記載の装置。
- 無線通信システムにおける送信ノード装置であって、
送受信部と、
前記送受信部と接続された制御部と、を含み、
前記制御部は、
受信ノードにデータ信号を送信ノードの第1送信ビームを介して送信し、
第2送信ビームを用いることを要求する第1メッセージを前記受信ノードから受信し、前記第2送信ビームの適用を知らせる第2メッセージを送信するように制御し、
前記データ信号は、前記受信ノードの受信ビームを介して前記受信ノードに受信され、
前記第2送信ビームは、前記受信ビームとペア(pair)にされた少なくとも1つの送信ビームのうち1つであって、
前記受信ビーム及び前記第1送信ビームは、ビームスウィーピング(beam sweeping)に基づいた周期的手順に従って決定され、
前記第2送信ビームは、ビームエラーによってトリガされる(triggered)非周期的手順に従って決定される装置。 - 前記送受信部は、前記第2送信ビームを介して他のデータ信号を送信する請求項18に記載の装置。
- 前記送受信部は、前記第1送信ビームを介して第1データ信号を、前記第2送信ビームを介して第2データ信号を送信する請求項18に記載の装置。
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US20220263602A1 (en) * | 2021-02-18 | 2022-08-18 | Qualcomm Incorporated | Hybrid automatic repeat request (harq) procedure using multiple beams in a wireless wide area network (wwan) |
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US9215650B2 (en) * | 2011-10-19 | 2015-12-15 | Samsung Electronics Co., Ltd. | Uplink control method and apparatus in wireless communication system |
US9450659B2 (en) * | 2011-11-04 | 2016-09-20 | Alcatel Lucent | Method and apparatus to generate virtual sector wide static beams using phase shift transmit diversity |
KR101881847B1 (ko) * | 2012-02-21 | 2018-08-24 | 삼성전자주식회사 | 통신 시스템에서 신호를 송수신하는 방법 및 장치 |
KR102045332B1 (ko) * | 2013-03-26 | 2019-11-18 | 삼성전자 주식회사 | 이동통신 시스템에서 무선랜을 이용해서 트래픽을 오프 로드하는 방법 및 장치 |
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US20220263602A1 (en) * | 2021-02-18 | 2022-08-18 | Qualcomm Incorporated | Hybrid automatic repeat request (harq) procedure using multiple beams in a wireless wide area network (wwan) |
US11784758B2 (en) * | 2021-02-18 | 2023-10-10 | Qualcomm Incorporated | Hybrid automatic repeat request (HARQ) procedure using multiple beams in a wireless wide area network (WWAN) |
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CA2844372C (en) | 2018-02-27 |
CN103875191B (zh) | 2018-05-08 |
CA2844372A1 (en) | 2013-02-21 |
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