IN2014KN01301A - - Google Patents

Info

Publication number
IN2014KN01301A
IN2014KN01301A IN1301KON2014A IN2014KN01301A IN 2014KN01301 A IN2014KN01301 A IN 2014KN01301A IN 1301KON2014 A IN1301KON2014 A IN 1301KON2014A IN 2014KN01301 A IN2014KN01301 A IN 2014KN01301A
Authority
IN
India
Prior art keywords
base station
beams
antenna arrays
receive
processing
Prior art date
Application number
Inventor
Kaushik Josiam
Surra Shadi Abu
Ying Li
Sridhar Rajagopal
Zhouyue Pi
Original Assignee
Samsung Electronics Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of IN2014KN01301A publication Critical patent/IN2014KN01301A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • 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
    • 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
    • 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
    • H04L25/0202—Channel estimation
    • H04L25/0204—Channel estimation of multiple channels
    • 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
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)

Abstract

RFRFRFA base station is capable of communicating with a plurality of subscriber stations using a beamforming scheme that varies beams over different time instances. The base station includes a plurality of antenna arrays configured to transmit N spatial beams and carry a reference symbols corresponding to specific spatial beams. The base station also includes N number of radio frequency (RF) processing chains coupled to respective ones of the plurality of antenna arrays wherein N>>N. The subscriber station includes M processing receive paths configured to receive M number of beams from the base station.
IN1301KON2014 2011-12-19 2012-12-18 IN2014KN01301A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201161577533P 2011-12-19 2011-12-19
US201261649838P 2012-05-21 2012-05-21
US13/678,795 US9077415B2 (en) 2011-12-19 2012-11-16 Apparatus and method for reference symbol transmission in an OFDM system
PCT/KR2012/011103 WO2013094980A1 (en) 2011-12-19 2012-12-18 Apparatus and method for reference symbol transmission in an ofdm system

Publications (1)

Publication Number Publication Date
IN2014KN01301A true IN2014KN01301A (en) 2015-10-16

Family

ID=48610122

Family Applications (1)

Application Number Title Priority Date Filing Date
IN1301KON2014 IN2014KN01301A (en) 2011-12-19 2012-12-18

Country Status (7)

Country Link
US (1) US9077415B2 (en)
EP (1) EP2795808A4 (en)
JP (1) JP6250549B2 (en)
KR (1) KR102332474B1 (en)
CN (1) CN104040908B (en)
IN (1) IN2014KN01301A (en)
WO (1) WO2013094980A1 (en)

Families Citing this family (118)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8885757B2 (en) 2012-05-29 2014-11-11 Magnolia Broadband Inc. Calibration of MIMO systems with radio distribution networks
US8842765B2 (en) 2012-05-29 2014-09-23 Magnolia Broadband Inc. Beamformer configurable for connecting a variable number of antennas and radio circuits
US8644413B2 (en) 2012-05-29 2014-02-04 Magnolia Broadband Inc. Implementing blind tuning in hybrid MIMO RF beamforming systems
US8837650B2 (en) 2012-05-29 2014-09-16 Magnolia Broadband Inc. System and method for discrete gain control in hybrid MIMO RF beamforming for multi layer MIMO base station
US8649458B2 (en) 2012-05-29 2014-02-11 Magnolia Broadband Inc. Using antenna pooling to enhance a MIMO receiver augmented by RF beamforming
US8861635B2 (en) 2012-05-29 2014-10-14 Magnolia Broadband Inc. Setting radio frequency (RF) beamformer antenna weights per data-stream in a multiple-input-multiple-output (MIMO) system
US8811522B2 (en) 2012-05-29 2014-08-19 Magnolia Broadband Inc. Mitigating interferences for a multi-layer MIMO system augmented by radio distribution network
US8971452B2 (en) 2012-05-29 2015-03-03 Magnolia Broadband Inc. Using 3G/4G baseband signals for tuning beamformers in hybrid MIMO RDN systems
US8767862B2 (en) 2012-05-29 2014-07-01 Magnolia Broadband Inc. Beamformer phase optimization for a multi-layer MIMO system augmented by radio distribution network
US8619927B2 (en) 2012-05-29 2013-12-31 Magnolia Broadband Inc. System and method for discrete gain control in hybrid MIMO/RF beamforming
US9154204B2 (en) 2012-06-11 2015-10-06 Magnolia Broadband Inc. Implementing transmit RDN architectures in uplink MIMO systems
US20140052884A1 (en) * 2012-08-14 2014-02-20 Zyxel Communications, Inc. Mobile device case with wireless high definition transmitter
US20140210666A1 (en) * 2013-01-25 2014-07-31 Alexander Maltsev Apparatus, system and method of wireless communication via an antenna array
WO2014115941A1 (en) * 2013-01-27 2014-07-31 Lg Electronics Inc. Method for transmitting and receiving planar antenna based reference signal in wireless communication system and apparatus therefor
US8797969B1 (en) 2013-02-08 2014-08-05 Magnolia Broadband Inc. Implementing multi user multiple input multiple output (MU MIMO) base station using single-user (SU) MIMO co-located base stations
US9343808B2 (en) 2013-02-08 2016-05-17 Magnotod Llc Multi-beam MIMO time division duplex base station using subset of radios
US8989103B2 (en) 2013-02-13 2015-03-24 Magnolia Broadband Inc. Method and system for selective attenuation of preamble reception in co-located WI FI access points
US9155110B2 (en) 2013-03-27 2015-10-06 Magnolia Broadband Inc. System and method for co-located and co-channel Wi-Fi access points
US20140226740A1 (en) 2013-02-13 2014-08-14 Magnolia Broadband Inc. Multi-beam co-channel wi-fi access point
US8774150B1 (en) 2013-02-13 2014-07-08 Magnolia Broadband Inc. System and method for reducing side-lobe contamination effects in Wi-Fi access points
US9225396B2 (en) * 2013-02-15 2015-12-29 Intel Corporation Apparatus, system and method of transmit power control for wireless communication
US9100968B2 (en) 2013-05-09 2015-08-04 Magnolia Broadband Inc. Method and system for digital cancellation scheme with multi-beam
US9425882B2 (en) 2013-06-28 2016-08-23 Magnolia Broadband Inc. Wi-Fi radio distribution network stations and method of operating Wi-Fi RDN stations
US8995416B2 (en) 2013-07-10 2015-03-31 Magnolia Broadband Inc. System and method for simultaneous co-channel access of neighboring access points
US8824596B1 (en) 2013-07-31 2014-09-02 Magnolia Broadband Inc. System and method for uplink transmissions in time division MIMO RDN architecture
US9497781B2 (en) 2013-08-13 2016-11-15 Magnolia Broadband Inc. System and method for co-located and co-channel Wi-Fi access points
EP3018927B1 (en) 2013-08-20 2017-10-18 Huawei Technologies Co., Ltd. Communication method and device
US9088898B2 (en) 2013-09-12 2015-07-21 Magnolia Broadband Inc. System and method for cooperative scheduling for co-located access points
US9060362B2 (en) 2013-09-12 2015-06-16 Magnolia Broadband Inc. Method and system for accessing an occupied Wi-Fi channel by a client using a nulling scheme
EP3046269B1 (en) 2013-09-27 2018-09-19 Huawei Technologies Co., Ltd. Communication method, base station and user equipment
US9762995B2 (en) 2013-10-16 2017-09-12 Samsung Electronics Co., Ltd. Stochastic transmission/reception method and apparatus for MU-MIMO scheme in MIMO radio communication system
ES2599071T3 (en) * 2013-10-16 2017-01-31 Telefónica S.A. A method and system for beam coordination between base stations in wireless cellular systems and computer program for them
CN104579456B (en) * 2013-10-18 2018-09-04 中国移动通信集团公司 Heterogeneous network communication method and relevant device
US9172454B2 (en) 2013-11-01 2015-10-27 Magnolia Broadband Inc. Method and system for calibrating a transceiver array
KR102088529B1 (en) 2013-11-06 2020-03-12 삼성전자주식회사 Method and apparatus for beam training in communication system
US8891598B1 (en) 2013-11-19 2014-11-18 Magnolia Broadband Inc. Transmitter and receiver calibration for obtaining the channel reciprocity for time division duplex MIMO systems
US8929322B1 (en) 2013-11-20 2015-01-06 Magnolia Broadband Inc. System and method for side lobe suppression using controlled signal cancellation
US8942134B1 (en) 2013-11-20 2015-01-27 Magnolia Broadband Inc. System and method for selective registration in a multi-beam system
JP6416257B2 (en) * 2013-11-25 2018-10-31 エルジー エレクトロニクス インコーポレイティド Method and apparatus for transmitting uplink frame in wireless LAN
US9294177B2 (en) 2013-11-26 2016-03-22 Magnolia Broadband Inc. System and method for transmit and receive antenna patterns calibration for time division duplex (TDD) systems
US9014066B1 (en) 2013-11-26 2015-04-21 Magnolia Broadband Inc. System and method for transmit and receive antenna patterns calibration for time division duplex (TDD) systems
KR102323130B1 (en) * 2013-11-27 2021-11-10 삼성전자 주식회사 Method and apparatus for open-loop mimo transmission in beamforming system
US9042276B1 (en) 2013-12-05 2015-05-26 Magnolia Broadband Inc. Multiple co-located multi-user-MIMO access points
US10256882B2 (en) * 2013-12-12 2019-04-09 Telefonaktiebolaget Lm Ericsson (Publ) Method and network node for broadcasting
US9100154B1 (en) 2014-03-19 2015-08-04 Magnolia Broadband Inc. Method and system for explicit AP-to-AP sounding in an 802.11 network
US9172446B2 (en) 2014-03-19 2015-10-27 Magnolia Broadband Inc. Method and system for supporting sparse explicit sounding by implicit data
US9271176B2 (en) 2014-03-28 2016-02-23 Magnolia Broadband Inc. System and method for backhaul based sounding feedback
US20150341105A1 (en) * 2014-05-23 2015-11-26 Mediatek Inc. Methods for efficient beam training and communications apparatus and network control device utilizing the same
US9451536B2 (en) 2014-06-18 2016-09-20 Qualcomm Incorporated UE initiated discovery in assisted millimeter wavelength wireless access networks
US10396873B2 (en) 2014-09-24 2019-08-27 Mediatek Inc. Control signaling in a beamforming system
US9882620B2 (en) * 2014-09-24 2018-01-30 Mediatek Inc. Synchronization in a beamforming system
US9948374B2 (en) 2014-10-01 2018-04-17 Qualcomm Incorporated Beamforming configuration scheme
CN107005299B (en) * 2014-10-10 2021-10-15 瑞典爱立信有限公司 Methods for CSI Feedback
KR102398646B1 (en) * 2014-12-02 2022-05-17 삼성전자주식회사 Apparatus and method for operating beam in communication system supporting hybrid multiple-input multiple-output scheme
KR101772739B1 (en) * 2014-12-23 2017-08-29 한국과학기술원 Method for rf beamforming, and apparatuses operating the same
WO2016106620A1 (en) 2014-12-31 2016-07-07 华为技术有限公司 Antenna alignment method and system
CN105991175B (en) * 2015-01-29 2019-02-05 电信科学技术研究院 A method and device for transmitting and receiving a pilot signal
CA2974948A1 (en) 2015-01-29 2016-08-04 Sony Corporation Apparatus and method
US10122424B2 (en) 2015-04-10 2018-11-06 Kyocera Corporation Mobile communication system, base station, and user terminal
CN108028682A (en) * 2015-07-22 2018-05-11 瑞典爱立信有限公司 Reference signaling for Wave-packet shaping network
ES2744183T3 (en) 2015-07-31 2020-02-24 Intel Ip Corp Network discovery and beam acquisition for beam cell operation
CN107852209B (en) * 2015-07-31 2021-01-12 华为技术有限公司 Training beam transmission method, device and system
US10038530B2 (en) 2015-08-14 2018-07-31 Industrial Technology Research Institute Method of transmitting and receiving CSI-RS and related apparatuses using the same
CN107852212B (en) * 2015-08-27 2022-03-25 苹果公司 Inter-beam mobility control in MIMO communication systems
US9549406B1 (en) 2015-09-14 2017-01-17 Elwha Llc Automatically adjustable radiofrequency link
US20180294859A1 (en) 2015-10-07 2018-10-11 Intel IP Corporation Dynamically beamformed control channel for beamformed cells
CN106612132B (en) * 2015-10-16 2021-05-18 电信科学技术研究院 A method and device for transmitting channel state information
US10931343B2 (en) * 2015-10-30 2021-02-23 Panasonic Intellectual Property Corporation Of America Transmitting method, transmitting device, receiving method and receiving device
CN108353061B (en) * 2015-11-05 2021-10-15 北京小米移动软件有限公司 Method, apparatus, and system for transmitting signals in unlicensed bands
WO2017082952A1 (en) * 2015-11-11 2017-05-18 Intel IP Corporation Mechanisms for beam switching and refinement in cellular systems
AU2016361140B2 (en) 2015-11-24 2019-02-14 Telefonaktiebolaget Lm Ericsson (Publ) Wireless device, radio-network node, and methods performed therein for managing signaling in a wireless communication network
CN105553531B (en) * 2015-12-14 2020-03-31 北京邮电大学 Millimeter wave system fast channel estimation method
CN112615706B (en) * 2016-01-15 2022-08-19 中兴通讯股份有限公司 Signal sending method, signal receiving method and device
US10393850B2 (en) 2016-01-21 2019-08-27 Intel IP Corporation Apparatus, system and method of angle of departure (AOD) estimation
US10362447B2 (en) * 2016-01-21 2019-07-23 Intel IP Corporation Apparatus, system and method of angle of departure (AoD) estimation
ES2898523T3 (en) * 2016-01-29 2022-03-07 Ericsson Telefon Ab L M Beamforming using an antenna array
US11088749B2 (en) * 2016-02-25 2021-08-10 Apple Inc. Device and method of using BRRS configuration
WO2017156114A1 (en) * 2016-03-10 2017-09-14 Interdigital Patent Holdings, Inc. Concurrent mimo beamforming training in mmw wlan systems
JP7297400B2 (en) * 2016-03-18 2023-06-26 キヤノン株式会社 Communication device, information processing device, control method, and program
US10277338B2 (en) * 2016-03-23 2019-04-30 Telefonaktiebolaget Lm Ericsson (Publ) Efficient scheduling of beam quality measurement signals to multiple wireless devices
CN107294584B (en) * 2016-03-31 2021-05-11 上海诺基亚贝尔股份有限公司 Method and apparatus for sharing channel state information reference signal resources
BR112018070842A2 (en) * 2016-04-15 2019-02-05 Ericsson Telefon Ab L M radio network node, wireless device, and methods performed on it
US11190327B2 (en) * 2016-04-15 2021-11-30 Apple Inc. Frequency tracking for beamformed systems
US11522743B2 (en) * 2016-04-27 2022-12-06 Futurewei Technologies, Inc. Sounding reference signal (SRS) design for cellular time division duplex (TDD) mmWave systems
WO2017206100A1 (en) * 2016-06-01 2017-12-07 Intel IP Corporation Cqi reporting for flexible transmission mode switching
WO2017206187A1 (en) * 2016-06-03 2017-12-07 广东欧珀移动通信有限公司 Method and device for transmitting data
JP2018011249A (en) * 2016-07-15 2018-01-18 三菱電機株式会社 COMMUNICATION SYSTEM, BASE STATION DEVICE, COMMUNICATION TERMINAL DEVICE, AND COMMUNICATION METHOD
US10333672B2 (en) 2016-07-28 2019-06-25 Qualcomm Incorporated Semi-persistent measurement reference signal (MRS) configuration
CN107835042B (en) * 2016-09-14 2020-12-01 华为技术有限公司 Synchronous beam transmission and reception method, network device, terminal and system
CA3037334C (en) * 2016-09-19 2021-07-13 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Method and device for transmitting signal
WO2018062939A1 (en) * 2016-09-29 2018-04-05 엘지전자 주식회사 Method and device for transceiving wireless signal in wireless communication system
EP4012967A1 (en) * 2016-09-30 2022-06-15 Motorola Mobility LLC Flexible radio resource allocation
US10425144B2 (en) * 2016-09-30 2019-09-24 Qualcomm Incorporated Methods for assisting in beam sweeping, tracking and recovery
CN108023629A (en) * 2016-11-03 2018-05-11 株式会社Ntt都科摩 Wave beam determines method, downlink transfer demodulation method, user equipment and base station
KR102675969B1 (en) * 2016-11-04 2024-06-17 삼성전자주식회사 Beam management in multi-beam system
US10582397B2 (en) * 2016-11-09 2020-03-03 Qualcomm Incorporated Beam refinement reference signal transmissions during control symbol
CN108075811B (en) * 2016-11-11 2021-03-30 上海诺基亚贝尔股份有限公司 Method for hybrid precoding and communication device
WO2018130002A1 (en) * 2017-01-10 2018-07-19 Telefonaktiebolaget Lm Ericsson (Publ) Adaptive numerology for beamforming training
US10404433B2 (en) * 2017-01-31 2019-09-03 Qualcomm Incorporated Matrix-based techniques for mapping resource elements to ports for reference signals
KR101980429B1 (en) * 2017-02-09 2019-05-20 한국과학기술원 Method and apparatus for selecting beam based on amplitude of received signal
EP3596839A1 (en) * 2017-04-10 2020-01-22 Telefonaktiebolaget LM Ericsson (publ) Device-specific beam management of a wireless device
US11888771B2 (en) * 2017-05-05 2024-01-30 Qualcomm Incorporated Beam procedure information for channel state information reference signals (CSI-RS)
EP4109777A1 (en) * 2017-05-05 2022-12-28 Apple Inc. Management of mimo communication systems
US10116367B1 (en) 2017-06-09 2018-10-30 Sony Corporation Method and system for multiple-hop relayed directional wireless communication
KR102506475B1 (en) 2017-08-31 2023-03-06 삼성전자 주식회사 Method and apparatus for csi-rs resource repetition in wireless communication system
US10735081B2 (en) * 2017-09-13 2020-08-04 Chiun Mai Communication Systems, Inc. Heterogeneous network, mobile device and method for beam training and tracking
JP2020536417A (en) * 2017-09-29 2020-12-10 株式会社Ｎｔｔドコモ Method of transmitting channel state information reference signal (CSI-RS), base station and user equipment
US10103823B1 (en) 2017-09-30 2018-10-16 Keysight Technologies, Inc. Radio channel emulator having a dynamically-variable channel model for use in testing base stations and user equipment (UE) that perform analog beam forming
US10110326B1 (en) 2017-09-30 2018-10-23 Keysight Technologies, Inc. Multi-probe anechoic chamber (MPAC) over-the-air (OTA) test system having a radio channel (RC) emulator that has a dynamically-variable channel model, and methods
JP2021513766A (en) * 2017-12-27 2021-05-27 オッポ広東移動通信有限公司Ｇｕａｎｇｄｏｎｇ Ｏｐｐｏ Ｍｏｂｉｌｅ Ｔｅｌｅｃｏｍｍｕｎｉｃａｔｉｏｎｓ Ｃｏｒｐ．， Ｌｔｄ． Information feedback methods and devices, computer storage media
US10778368B2 (en) * 2018-04-06 2020-09-15 Lg Electronics Inc. Method for determining slot format of user equipment in wireless communication system and user equipment using the same
US10735110B2 (en) 2018-12-07 2020-08-04 Keysight Technologies, Inc. Methods, systems, and computer readable media for testing and modeling beamforming capabilities of a device under test
US20220286336A1 (en) * 2019-08-23 2022-09-08 Iposi, Inc. Improved ofdm ranging using position reference symbol phase
EP3809604B1 (en) * 2019-10-15 2023-11-29 Nokia Technologies Oy Method of operating an apparatus for transmitting and/or receiving radio frequency signals
US11088744B1 (en) 2020-02-07 2021-08-10 Keysight Technologies, Inc. Methods, systems, and computer readable media for 5G digital beamforming testing
CN111988825B (en) * 2020-08-31 2021-06-29 西安电子科技大学 Mode selection and switching method in dual-band integrated system
JP7093826B2 (en) * 2020-12-03 2022-06-30 オッポ広東移動通信有限公司 Data transmission method and equipment
WO2023048420A1 (en) * 2021-09-27 2023-03-30 주식회사 케이엠더블유 Quadri-polarization diversity antenna system

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9402942D0 (en) * 1994-02-16 1994-04-06 Northern Telecom Ltd Base station antenna arrangement
JPH09326630A (en) * 1996-06-05 1997-12-16 N T T Ido Tsushinmo Kk Adaptive array antenna device
US6438389B1 (en) * 1998-07-24 2002-08-20 The Board Of Trustees Of The Leland Stanford Junior University Wireless communication system with adaptive beam selection
KR20040008692A (en) 2002-07-19 2004-01-31 주식회사 웨이브컴테크놀로지 Digital beam forming system
US8306574B2 (en) * 2003-10-29 2012-11-06 Robert Warner Method and system for an adaptive wireless communication system optimized for economic benefit
JP4536733B2 (en) * 2004-12-28 2010-09-01 富士通株式会社 Wireless communication system
US8483200B2 (en) 2005-04-07 2013-07-09 Interdigital Technology Corporation Method and apparatus for antenna mapping selection in MIMO-OFDM wireless networks
US7539458B2 (en) * 2005-10-24 2009-05-26 The Regents Of The University Of California Apparatus and method for a system architecture for multiple antenna wireless communication systems using round robin channel estimation and transmit beam forming algorithms
US7848438B2 (en) * 2006-02-14 2010-12-07 Motorola Mobility, Inc. Method and apparatus for pilot signal transmission
EP1966904A4 (en) * 2006-03-30 2010-01-27 Mitsubishi Electric Res Lab TRAINING AT ANTENNA / BEAM SELECTION IN MIMO WIRELESS LANS WITH DIFFERENT SURVEY FRAMES
CA2542445A1 (en) 2006-04-07 2007-10-07 Tenxc Wireless Inc. Adaptive multi-beam system
KR100903926B1 (en) * 2007-07-09 2009-06-19 후지쯔 가부시끼가이샤 Wireless communication system
ATE517526T1 (en) * 2008-05-30 2011-08-15 Alcatel Lucent METHOD AND BASE STATION FOR CONTROLLING BEAM FORMATION IN A MOBILE CELLULAR NETWORK
WO2010002734A2 (en) * 2008-06-30 2010-01-07 Interdigital Patent Holdings, Inc. Method and apparatus to support single user (su) and multiuser (mu) beamforming with antenna array groups
JP2010068482A (en) * 2008-09-12 2010-03-25 Toshiba Corp Array antenna apparatus
US8982750B2 (en) * 2009-01-16 2015-03-17 Qualcomm Incorporated Method and apparatus for transmitting overload indicator over the air
JP5278035B2 (en) * 2009-02-25 2013-09-04 ソニー株式会社 COMMUNICATION DEVICE AND COMMUNICATION METHOD, COMPUTER PROGRAM, AND COMMUNICATION SYSTEM
US20100310002A1 (en) 2009-06-05 2010-12-09 Broadcom Corporation Adaptive and selective frame formats within multiple user, multiple access, and/or mimo wireless communications
US8285221B2 (en) 2009-08-31 2012-10-09 Motorola Mobility Llc Scalable self-calibrating and configuring radio frequency head for a wireless communication system
US9806789B2 (en) * 2010-04-06 2017-10-31 Samsung Electronics Co., Ltd. Apparatus and method for spatial division duplex (SDD) for millimeter wave communication system
EP2544378A3 (en) * 2010-12-08 2014-05-28 Broadcom Corporation Method and system for 60 GHz chipset RF control interface (RF module control interface)
JP5795723B2 (en) * 2011-05-27 2015-10-14 京セラ株式会社 Radio transmission apparatus and transmission control method
US8385305B1 (en) * 2012-04-16 2013-02-26 CBF Networks, Inc Hybrid band intelligent backhaul radio

Also Published As

Publication number Publication date
US20130156120A1 (en) 2013-06-20
CN104040908A (en) 2014-09-10
EP2795808A4 (en) 2015-12-16
JP2015509305A (en) 2015-03-26
WO2013094980A1 (en) 2013-06-27
CN104040908B (en) 2017-06-13
JP6250549B2 (en) 2017-12-20
EP2795808A1 (en) 2014-10-29
KR102332474B1 (en) 2021-11-30
KR20130070560A (en) 2013-06-27
US9077415B2 (en) 2015-07-07

Similar Documents

Publication Publication Date Title
IN2014KN01301A (en)
WO2012123257A3 (en) Method for determining beamforming parameters in a wireless communication system and to a wireless communication system
WO2013028012A3 (en) Mobile terminal and communication method thereof, base station controller and control method thereof, and multi-cooperative transmission system using the same and method thereof
MX2014003647A (en) Point-to-multipoint microwave communication.
IN2014KN01729A (en)
WO2012067445A3 (en) Uplink transmission power control method and apparatus for a distributed antenna mobile communication system
MX2011013369A (en) Wireless base station device, mobile station device, and wireless communication method.
WO2011034734A3 (en) Millimeter-wave communication station and method for scheduling association beamforming training with collision avoidance
WO2011042847A3 (en) A method for operating a radio station in a cellular communication network
EP3871292A4 (en) MULTI-BAND BASE STATION ANTENNAS WITH NESTED NETWORKS
EP2953272A3 (en) Low effort massive mimo antenna arrays and their use
EP4243329A3 (en) Communication system
MX2012002204A (en) Method and apparatus for transmitting control information in wlan system.
WO2011057302A3 (en) Rf module and antenna systems
TW201212382A (en) Smart antenna system
SG10201705729VA (en) Phased Array Radio Frequency Network for Mobile Communication
WO2012031225A3 (en) Method and apparatus for communicating with blind interference alignment using power allocation and/or transmission architecture
IN2012DN01129A (en)
WO2011011192A3 (en) Techniques for mimo beamforming for frequency selective channels in wireless communication systems
PH12012502146A1 (en) Mobile communication method, radio base station, and mobile station
PH12012501975A1 (en) Radio base station, mobile station and communication control method
EP2417828A4 (en) Wireless communication apparatus with an antenna shared between a plurality of communication circuits
PT3677093T (en) METHODS, INTERMEDIATE RADIO UNITS AND TERMINALS RADIO BASE STATION SYSTEMS FOR TRANSMISSION OF ANTENNA CARRIERS
WO2011129547A3 (en) Method and apparatus for transmitting feedback information of a terminal in a multi-node system
EP4250820A3 (en) Communication system, user apparatus and master base station for master base station handover