JP6865759B2 - ハイブリッドビームフォーミングを利用した無線通信方法および装置 - Google Patents
ハイブリッドビームフォーミングを利用した無線通信方法および装置 Download PDFInfo
- Publication number
- JP6865759B2 JP6865759B2 JP2018538507A JP2018538507A JP6865759B2 JP 6865759 B2 JP6865759 B2 JP 6865759B2 JP 2018538507 A JP2018538507 A JP 2018538507A JP 2018538507 A JP2018538507 A JP 2018538507A JP 6865759 B2 JP6865759 B2 JP 6865759B2
- Authority
- JP
- Japan
- Prior art keywords
- beamforming
- signal
- terminals
- wireless communication
- sublobe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004891 communication Methods 0.000 title claims description 78
- 238000000034 method Methods 0.000 title claims description 47
- 238000012545 processing Methods 0.000 claims description 45
- 238000004422 calculation algorithm Methods 0.000 claims description 7
- 238000013459 approach Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 description 17
- 238000010586 diagram Methods 0.000 description 11
- 230000005540 biological transmission Effects 0.000 description 10
- 230000006870 function Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- 238000010295 mobile communication Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 3
- 238000004590 computer program Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/28—Details of pulse systems
- G01S7/2813—Means providing a modification of the radiation pattern for cancelling noise, clutter or interfering signals, e.g. side lobe suppression, side lobe blanking, null-steering arrays
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/2605—Array of radiating elements provided with a feedback control over the element weights, e.g. adaptive arrays
- H01Q3/2611—Means for null steering; Adaptive interference nulling
- H01Q3/2617—Array of identical elements
-
- 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
-
- 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
- Mathematical Physics (AREA)
Description
Claims (7)
- 基地局が、無線資源が割り当てられた複数の端末から方向角が異なる複数のビームフォーミング信号に対して測定したSINR(Signal−to−Interference−plus−Noise Ratio)を受信する段階と、
基地局が前記受信したSINRを基礎として複数の端末に対してそれぞれビームフォーミング信号を割り当てる段階と、
基地局が前記複数の端末から割り当てられたビームフォーミング信号それぞれに対するチャネル状態情報(CSI,Channel State Information)を受信する段階と、
基地局が前記チャネル状態情報を基礎として、アナログビームフォーミングを通じて他の端末と干渉を起こす前記割り当てられたビームフォーミング信号の副ローブ信号を1次除去(Nulling)する段階と、
前記副ローブ信号の1次除去後、前記割り当てられたビームフォーミング信号の強度を前記複数の端末から受信する段階と、
受信した前記ビームフォーミング信号の強度に基づいて、前記副ローブ信号の残存の干渉成分を確認する段階と、
デジタルビームフォーミングを通じて前記副ローブ信号の残存の干渉成分を2次除去する段階と、を含むハイブリッドビームフォーミングを利用した無線通信方法。 - 前記割り当てる段階は、
前記SINRを基準として相互間の干渉が最小である二つ以上の端末を選択して、前記ビームフォーミング信号を割り当てることを特徴とする、請求項1に記載のハイブリッドビームフォーミングを利用した無線通信方法。 - 基地局が端末への到来角(AoA,Angle of Arrival)を測定する段階をさらに含み、
前記1次除去する段階は、
前記チャネル状態情報と前記到来角を基盤として副ローブ信号を除去することを特徴とする、請求項1に記載のハイブリッドビームフォーミングを利用した無線通信方法。 - 前記2次除去する段階は、
マルチユーザーMIMOプリコーディングアルゴリズム(MU−MIMO Precoding Algorithm)を使用することを特徴とする、請求項1に記載のハイブリッドビームフォーミングを利用した無線通信方法。 - アンテナ端に連結されるRF信号処理部と、
前記RF信号処理部に連結されたベースバンド信号処理部と、
前記RF信号処理部を制御してアナログビームフォーミングを行うアナログビームフォーミング制御モジュールと、前記ベースバンド信号処理部を制御して、デジタルビームフォーミングを行うデジタルビームフォーミング制御モジュールとを有する制御部を含み、
前記制御部は、
無線資源が割り当てられた複数の端末に対してビームフォーミング信号を割り当て、
前記複数の端末から割り当てられたビームフォーミング信号それぞれに対するチャネル状態情報(CSI,Channel State Information)を受信し、
前記チャネル状態情報を基礎として前記RF信号処理部を制御して、アナログビームフォーミングを通じて他の端末と干渉を起こす前記割り当てられたビームフォーミング信号の副ローブ信号を1次除去(Nulling)し、
前記副ローブ信号の1次除去後、前記割り当てられたビームフォーミング信号の強度を前記複数の端末から受信し、
受信した前記ビームフォーミング信号の強度に基づいて、前記副ローブ信号の残存の干渉成分を確認し、
前記ベースバンド信号処理部を制御してデジタルビームフォーミングを通じて前記副ローブ信号の残存干渉成分を2次除去する
ように構成されていることを特徴とするハイブリッドビームフォーミングを利用した無線通信装置。 - 前記制御部は、
前記複数の端末に対する到来角(AoA,Angle of Arrival)をさらに測定し、前記チャネル状態情報と前記到来角を基盤として前記他の端末と干渉を起こす副ローブ信号を除去するようにRF信号処理部を制御することを特徴とする、請求項5に記載のハイブリッドビームフォーミングを利用した無線通信装置。 - 前記制御部は、端末から受信したSINRを基準として相互間の干渉が最小である二つ以上の端末を選択して、前記ビームフォーミング信号を割り当てることを特徴とする、請求項5に記載のハイブリッドビームフォーミングを利用した無線通信装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020150142186A KR102188747B1 (ko) | 2015-10-12 | 2015-10-12 | 하이브리드 빔포밍을 이용한 무선 통신 방법 및 장치 |
KR10-2015-0142186 | 2015-10-12 | ||
PCT/KR2016/004989 WO2017065372A1 (ko) | 2015-10-12 | 2016-05-12 | 하이브리드 빔포밍을 이용한 무선 통신 방법 및 장치 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2018535624A JP2018535624A (ja) | 2018-11-29 |
JP6865759B2 true JP6865759B2 (ja) | 2021-04-28 |
Family
ID=58517395
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2018538507A Active JP6865759B2 (ja) | 2015-10-12 | 2016-05-12 | ハイブリッドビームフォーミングを利用した無線通信方法および装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US10700747B2 (ja) |
EP (1) | EP3364554B1 (ja) |
JP (1) | JP6865759B2 (ja) |
KR (1) | KR102188747B1 (ja) |
CN (1) | CN108141268B (ja) |
WO (1) | WO2017065372A1 (ja) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11165521B2 (en) * | 2016-12-13 | 2021-11-02 | Amimon Ltd. | Analog signal transmission with multiple antennas |
US11050467B2 (en) | 2018-03-21 | 2021-06-29 | Telefonaktiebolaget Lm Ericsson (Publ) | Robust MU-MIMO transmission using virtual UEs |
US11385326B2 (en) * | 2018-06-13 | 2022-07-12 | Metawave Corporation | Hybrid analog and digital beamforming |
DE112019003523T5 (de) * | 2018-08-08 | 2021-05-27 | Lg Electronics Inc. | Verfahren zum Senden oder Empfangen von Kanalzustandsinformationen für eine Vielzahl von Basisstationen in einem drahtlosen Kommunikationssystem, und Gerät dafür |
US11653370B2 (en) | 2019-02-22 | 2023-05-16 | Samsung Electronics Co., Ltd. | Method of transmitting and receiving user equipment management information in wireless communication system and electronic device for performing the method |
CN114830550A (zh) * | 2019-11-07 | 2022-07-29 | 弗劳恩霍夫应用研究促进协会 | 天线辐射图案的干扰感知适配 |
US11658719B2 (en) * | 2020-06-25 | 2023-05-23 | Qualcomm Incorporated | Hybrid beamforming with a butler matrix |
EP3940968B1 (en) * | 2020-07-17 | 2023-02-08 | Nokia Technologies Oy | A method and an apparatus for a transmission scheme |
US11575421B2 (en) * | 2020-12-09 | 2023-02-07 | Qualcomm Incorporated | Techniques for beam shaping for in-band interference mitigation in large bandwidth millimeter wave systems |
WO2023046260A1 (en) * | 2021-09-21 | 2023-03-30 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and base station for optimizing transmission power of antenna array by using feedback signal |
GB2615413B (en) | 2022-02-04 | 2024-05-15 | Nokia Solutions & Networks Oy | Method for determining beam interfefence |
Family Cites Families (44)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4389649A (en) * | 1980-10-14 | 1983-06-21 | The United States Army As Represented By The Secretary Of The Army | Dual channel correlator for an FM-CW ranging radar |
MX9702434A (es) * | 1991-03-07 | 1998-05-31 | Masimo Corp | Aparato de procesamiento de señales. |
US5600326A (en) * | 1991-12-16 | 1997-02-04 | Martin Marietta Corp. | Adaptive digital beamforming architecture and algorithm for nulling mainlobe and multiple sidelobe radar jammers while preserving monopulse ratio angle estimation accuracy |
JPH0748665B2 (ja) * | 1992-12-14 | 1995-05-24 | 日本電気株式会社 | サイドローブキャンセラ |
US5465396A (en) * | 1993-01-12 | 1995-11-07 | Usa Digital Radio Partners, L.P. | In-band on-channel digital broadcasting |
JP2561028B2 (ja) * | 1994-05-26 | 1996-12-04 | 日本電気株式会社 | サイドローブキャンセラ |
US6404806B1 (en) * | 1998-12-31 | 2002-06-11 | Nortel Networks Limited | Method and apparatus for time-domain equalization in FDM-based discrete multi-tone modems |
JP2000209017A (ja) * | 1999-01-20 | 2000-07-28 | Fujitsu Ltd | 無線基地局 |
JP2002111564A (ja) * | 2000-09-27 | 2002-04-12 | Matsushita Electric Ind Co Ltd | 基地局装置及び無線送信方法 |
EP1248375B1 (fr) * | 2001-04-02 | 2006-05-24 | STMicroelectronics N.V. | Procédé de conversion analogique/numérique d'un signal analogique au sein d'un terminal d'un système de communication sans fil, par exemple un téléphone mobile, et terminal correspondant. |
WO2003032522A2 (en) * | 2001-10-08 | 2003-04-17 | Qinetiq Limited | Signal processing system and method for determininig antenna weights |
KR100975730B1 (ko) * | 2005-03-29 | 2010-08-13 | 삼성전자주식회사 | 다중입출력시스템을 위한 랜덤 빔포밍 방법 |
KR100734890B1 (ko) * | 2005-10-10 | 2007-07-03 | 삼성전자주식회사 | 스마트 안테나 시스템에서 단말의 수신성능을 향상시키기위한 장치 및 방법 |
KR100879334B1 (ko) * | 2007-03-06 | 2009-01-19 | (주)에어포인트 | 초소형 일체형 간섭 제거 무선중계 장치 및 그 방법 |
US7888973B1 (en) * | 2007-06-05 | 2011-02-15 | Marvell International Ltd. | Matrix time-to-digital conversion frequency synthesizer |
WO2010019449A2 (en) * | 2008-08-14 | 2010-02-18 | Andrew Llc | System and method for an intelligent radio frequency receiver |
ATE511737T1 (de) * | 2008-09-19 | 2011-06-15 | Alcatel Lucent | Verfahren zur satzbildung von mobilen stationen in mimo-systemen, entsprechende mobilstation, basisstation, betrieb und wartungszentrum und funkkommunikationsnetzwerk |
EP2392048B1 (en) * | 2009-02-02 | 2018-10-31 | Commonwealth Scientific and Industrial Research Organisation | Hybrid adaptive antenna array |
TW201121246A (en) * | 2009-12-14 | 2011-06-16 | Univ Nat Taiwan | Frequency synthesizers |
JP5883398B2 (ja) | 2010-02-12 | 2016-03-15 | テレフオンアクチーボラゲット エル エム エリクソン(パブル) | セル間干渉コーディネーションを用いる、通信ネットワークにおける方法及び構成 |
EP2403067A1 (en) * | 2010-06-23 | 2012-01-04 | Astrium Limited | An antenna |
CN102064892A (zh) * | 2010-12-28 | 2011-05-18 | 哈尔滨工业大学 | 子阵级自适应单脉冲的两级干扰抑制方法 |
US9444534B2 (en) * | 2012-02-06 | 2016-09-13 | Samsung Electronics Co., Ltd. | Apparatus and method for low complexity spatial division multiple access in a millimeter wave mobile communication system |
US8989332B2 (en) * | 2012-04-26 | 2015-03-24 | Skyworks Solutions, Inc. | Systems and methods for controlling frequency synthesis |
KR20130127347A (ko) * | 2012-05-10 | 2013-11-22 | 삼성전자주식회사 | 아날로그 및 디지털 하이브리드 빔포밍을 통한 통신 방법 및 장치 |
US9935699B2 (en) * | 2012-06-22 | 2018-04-03 | Samsung Electronics Co., Ltd. | Communication method and apparatus using beamforming in a wireless communication system |
US20140073337A1 (en) * | 2012-09-11 | 2014-03-13 | Electronics And Telecommunications Research Institute | Communication device and communication method using millimeter-wave frequency band |
CN102916735B (zh) * | 2012-10-17 | 2016-06-08 | 东南大学 | 利用大规模天线阵列的无线通信方法 |
KR102043021B1 (ko) | 2013-04-15 | 2019-11-12 | 삼성전자주식회사 | 이동 통신 시스템에서 빔포밍을 위한 스케쥴링 방법 및 장치 |
KR101994325B1 (ko) * | 2013-05-31 | 2019-09-30 | 삼성전자주식회사 | 통신 시스템에서 어레이 안테나 장치 및 그 제어 방법 |
WO2015065158A1 (ko) * | 2013-11-04 | 2015-05-07 | 엘지전자 주식회사 | 무선 통신 시스템에서 신호를 전송하는 방법 및 장치 |
US8929322B1 (en) * | 2013-11-20 | 2015-01-06 | Magnolia Broadband Inc. | System and method for side lobe suppression using controlled signal cancellation |
US20150163848A1 (en) * | 2013-12-11 | 2015-06-11 | Qualcomm Incorporated | Multi-carrier connection management for bandwidth aggregation |
JP2015164281A (ja) * | 2014-01-31 | 2015-09-10 | 株式会社Nttドコモ | ユーザ装置、基地局、及び通信方法 |
KR102177804B1 (ko) * | 2014-03-25 | 2020-11-11 | 삼성전자주식회사 | 다중입력 다중출력 시스템에서 스케줄링 방법 및 장치 |
KR102247801B1 (ko) * | 2014-08-21 | 2021-05-04 | 삼성전자 주식회사 | 필터뱅크 다중반송파 시스템에서 간섭 감쇄 또는 간섭 제거 방법 및 장치 |
CN105681007B (zh) * | 2014-11-19 | 2020-11-06 | 北京三星通信技术研究有限公司 | 参考信号的发送、接收方法及装置和调度方法及装置 |
CN107211451B (zh) * | 2014-11-26 | 2022-08-26 | Idac控股公司 | 高频无线系统中的初始接入 |
EP3269057A4 (en) * | 2015-03-09 | 2018-11-07 | LG Electronics Inc. | Method and apparatus for performing network cooperative communication to distribute traffic in a wireless communication system |
WO2016153287A1 (ko) * | 2015-03-25 | 2016-09-29 | 엘지전자 주식회사 | 다중 안테나 무선 통신 시스템에서 채널 상태 정보 피드백 방법 및 이를 위한 장치 |
US10686498B2 (en) * | 2015-03-31 | 2020-06-16 | Huawei Technologies Canada Co., Ltd. | Systems and methods for massive MIMO adaptation |
EP3289795B1 (en) * | 2015-04-29 | 2019-12-18 | Telefonaktiebolaget LM Ericsson (publ) | Methods and apparatuses for inter-network measurement in a wireless network |
CN107925455B (zh) * | 2015-06-18 | 2021-09-07 | 瑞典爱立信有限公司 | 用于适配码本以供多个天线配置使用的系统和方法 |
CN105072063B (zh) * | 2015-07-10 | 2018-05-18 | 大唐移动通信设备有限公司 | 一种抑制干扰信号的方法和装置 |
-
2015
- 2015-10-12 KR KR1020150142186A patent/KR102188747B1/ko active IP Right Grant
-
2016
- 2016-05-12 CN CN201680059295.7A patent/CN108141268B/zh active Active
- 2016-05-12 US US15/762,795 patent/US10700747B2/en active Active
- 2016-05-12 JP JP2018538507A patent/JP6865759B2/ja active Active
- 2016-05-12 EP EP16855590.2A patent/EP3364554B1/en active Active
- 2016-05-12 WO PCT/KR2016/004989 patent/WO2017065372A1/ko active Application Filing
Also Published As
Publication number | Publication date |
---|---|
CN108141268B (zh) | 2021-07-06 |
KR102188747B1 (ko) | 2020-12-08 |
EP3364554A1 (en) | 2018-08-22 |
EP3364554A4 (en) | 2018-10-24 |
EP3364554B1 (en) | 2019-12-11 |
US10700747B2 (en) | 2020-06-30 |
JP2018535624A (ja) | 2018-11-29 |
WO2017065372A1 (ko) | 2017-04-20 |
KR20170042948A (ko) | 2017-04-20 |
CN108141268A (zh) | 2018-06-08 |
US20180269946A1 (en) | 2018-09-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6865759B2 (ja) | ハイブリッドビームフォーミングを利用した無線通信方法および装置 | |
US11075723B2 (en) | Method and system for MIMO transmission in a distributed transceiver network | |
JP6042323B2 (ja) | ミリ波通信システムで空間分割二重化のための装置及び方法 | |
US11621682B2 (en) | Apparatus and methods for true power detection | |
CN111200568B (zh) | 发送端设备和信号处理方法 | |
JP2018533866A (ja) | Loリークが低減されたパケット単位交換のためのマルチチップtxビームフォーミング | |
JP6404448B2 (ja) | 大容量無線通信のためのファランクス無線システムアーキテクチャ | |
KR20210074739A (ko) | 무선 통신 시스템에서 복수의 대역들에서 신호들을 송신 및 수신하기 위한 장치 및 방법 | |
WO2021054983A1 (en) | Devices and methods for facilitating beamforming communications in wireless devices | |
TWI415407B (zh) | Beamforming circuit and communication system | |
JP5335477B2 (ja) | 通信システム | |
US10897740B1 (en) | Methods and devices for facilitating path loss estimations for transmit power control | |
JP2008028561A (ja) | 通信システム | |
Mercy Sheeba et al. | Beamforming Techniques for Millimeter Wave Communications-A Survey | |
JP6396626B1 (ja) | Lo位相アラインメント回路なしのパケットごと切替えのためのマルチチップtxビームフォーミング | |
CN108432332B (zh) | 基站 | |
WO2015068887A1 (ko) | 단말 간 직접통신에 기반하여 협력 신호를 수신하는 방법 및 이를 위한 장치 | |
WO2018193443A1 (en) | Remote unit supporting radio frequency (rf) spectrum-based coverage area optimization in a wireless distribution system (wds) | |
JP2023525273A (ja) | データ再生インタフェースを有する狭帯域aas受信機 | |
KR20170006692A (ko) | 빔 생성 장치 및 이를 이용한 빔 생성 방법 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20181114 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20191018 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20191113 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20200213 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20200709 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20201009 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20210316 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20210406 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 6865759 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |