WO2009114738A3 - Digital radio-frequency tranceiver system and method - Google Patents

Digital radio-frequency tranceiver system and method Download PDF

Info

Publication number
WO2009114738A3
WO2009114738A3 PCT/US2009/037032 US2009037032W WO2009114738A3 WO 2009114738 A3 WO2009114738 A3 WO 2009114738A3 US 2009037032 W US2009037032 W US 2009037032W WO 2009114738 A3 WO2009114738 A3 WO 2009114738A3
Authority
WO
WIPO (PCT)
Prior art keywords
digital
unit
linearizers
tower
frequency
Prior art date
Application number
PCT/US2009/037032
Other languages
French (fr)
Other versions
WO2009114738A2 (en
Inventor
Deepnarayan Gupta
Oleg Mukhanov
Richard E. Hitt
Original Assignee
Hypres, Inc.
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 Hypres, Inc. filed Critical Hypres, Inc.
Priority to EP09721141A priority Critical patent/EP2263332A2/en
Publication of WO2009114738A2 publication Critical patent/WO2009114738A2/en
Publication of WO2009114738A3 publication Critical patent/WO2009114738A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/25—Arrangements specific to fibre transmission
    • H04B10/2575—Radio-over-fibre, e.g. radio frequency signal modulated onto an optical carrier
    • H04B10/25752—Optical arrangements for wireless networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/20—Modulator circuits; Transmitter circuits
    • H04L27/2096—Arrangements for directly or externally modulating an optical carrier
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/25—Arrangements specific to fibre transmission
    • H04B10/2575—Radio-over-fibre, e.g. radio frequency signal modulated onto an optical carrier
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/40—Transceivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50—Transmitters
    • H04B10/516—Details of coding or modulation
    • H04B10/548—Phase or frequency modulation
    • H04B10/556—Digital modulation, e.g. differential phase shift keying [DPSK] or frequency shift keying [FSK]
    • H04B10/5561—Digital phase modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/60—Receivers
    • H04B10/66—Non-coherent receivers, e.g. using direct detection
    • H04B10/69—Electrical arrangements in the receiver
    • H04B10/697—Arrangements for reducing noise and distortion

Abstract

A transceiver architecture for wireless base stations wherein a broadband radio frequency signal is carried between at least one tower-mounted unit and a ground-based unit via optical fibers, or other non-distortive media, in either digital or analog format. Each tower-mounted unit (for both reception and transmission) has an antenna, analog amplifier and an electro-optical converter. The ground unit has ultrafast data converters and digital frequency translators, as well as signal linearizers, to compensate for nonlinear distortion in the amplifiers and optical links in both directions. In one embodiment of the invention, at least one of the digital data converters, frequency translators, and linearizers includes superconducting elements mounted on a cryocooler.
PCT/US2009/037032 2008-03-12 2009-03-12 Digital radio-frequency tranceiver system and method WO2009114738A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09721141A EP2263332A2 (en) 2008-03-12 2009-03-12 Digital radio-frequency tranceiver system and method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US3593208P 2008-03-12 2008-03-12
US61/035,932 2008-03-12

Publications (2)

Publication Number Publication Date
WO2009114738A2 WO2009114738A2 (en) 2009-09-17
WO2009114738A3 true WO2009114738A3 (en) 2009-12-23

Family

ID=41062992

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2009/037032 WO2009114738A2 (en) 2008-03-12 2009-03-12 Digital radio-frequency tranceiver system and method

Country Status (4)

Country Link
US (7) US8260143B2 (en)
EP (1) EP2263332A2 (en)
KR (1) KR20110002020A (en)
WO (1) WO2009114738A2 (en)

Families Citing this family (203)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11309943B2 (en) 2004-04-02 2022-04-19 Rearden, Llc System and methods for planned evolution and obsolescence of multiuser spectrum
US11394436B2 (en) 2004-04-02 2022-07-19 Rearden, Llc System and method for distributed antenna wireless communications
US10886979B2 (en) 2004-04-02 2021-01-05 Rearden, Llc System and method for link adaptation in DIDO multicarrier systems
US10749582B2 (en) 2004-04-02 2020-08-18 Rearden, Llc Systems and methods to coordinate transmissions in distributed wireless systems via user clustering
US10425134B2 (en) 2004-04-02 2019-09-24 Rearden, Llc System and methods for planned evolution and obsolescence of multiuser spectrum
US11451275B2 (en) 2004-04-02 2022-09-20 Rearden, Llc System and method for distributed antenna wireless communications
US10985811B2 (en) 2004-04-02 2021-04-20 Rearden, Llc System and method for distributed antenna wireless communications
US9685997B2 (en) 2007-08-20 2017-06-20 Rearden, Llc Systems and methods to enhance spatial diversity in distributed-input distributed-output wireless systems
DE102005034032A1 (en) * 2005-07-21 2007-02-01 Selex Sistemi Intergrati Gmbh Multi-channel radio frequency receiver
US8462889B2 (en) 2005-10-04 2013-06-11 Hypres, Inc. Oversampling digital receiver for radio-frequency signals
US7615385B2 (en) 2006-09-20 2009-11-10 Hypres, Inc Double-masking technique for increasing fabrication yield in superconducting electronics
WO2008088862A1 (en) * 2007-01-18 2008-07-24 Mobileaccess Networks Ltd. Method and system for equalizing cable losses in a distributed antenna system
WO2008103375A2 (en) * 2007-02-19 2008-08-28 Mobileaccess Networks Ltd. Method and system for improving uplink performance
US7876869B1 (en) 2007-05-23 2011-01-25 Hypers, Inc. Wideband digital spectrometer
WO2009114738A2 (en) * 2008-03-12 2009-09-17 Hypres, Inc. Digital radio-frequency tranceiver system and method
US8326250B2 (en) * 2008-05-22 2012-12-04 Broadcom Corporation Receiver with statistical analysis and methods for use therewith
US20090305689A1 (en) * 2008-06-10 2009-12-10 Nsoro, Inc. Load reduction in wireless communication towers
US8126036B2 (en) * 2008-06-21 2012-02-28 Vyycore Corporation Predistortion and post-distortion correction of both a receiver and transmitter during calibration
US8594232B2 (en) 2008-06-21 2013-11-26 Vyycore Corporation System for predistortion and post-distortion correction of both a receiver and transmitter during calibration
JP5487216B2 (en) * 2008-11-12 2014-05-07 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） Method and transmitter in a wireless communication network
ATE488117T1 (en) * 2009-03-24 2010-11-15 Alcatel Lucent METHOD FOR DATA TRANSMISSION BY MEANS OF A SHADE ELIMINATING AND RESTORATION AMPLIFIER, SHELL ELIMINATING AND RESTORING AMPLIFIER, TRANSMITTING DEVICE, RECEIVING DEVICE AND COMMUNICATIONS NETWORK THEREOF
GB0905820D0 (en) * 2009-04-03 2009-05-20 Bae Systems Plc Improvements relating to signal processing
US8346091B2 (en) 2009-04-29 2013-01-01 Andrew Llc Distributed antenna system for wireless network systems
CA2704522C (en) * 2009-05-14 2017-02-14 Seyed Aidin Bassam Multi-cell processing architectures for modeling and impairment compensation in multi-input multi-output systems
US8326156B2 (en) * 2009-07-07 2012-12-04 Fiber-Span, Inc. Cell phone/internet communication system for RF isolated areas
KR101517170B1 (en) * 2009-09-29 2015-05-04 삼성전자주식회사 Apparatus and method for reducing power comsumption in multi antenna system
EP2312749B1 (en) * 2009-10-15 2011-11-30 Alcatel Lucent RF power amplifier with spectrally grouped nanosized switches
KR101758270B1 (en) * 2009-11-18 2017-07-14 엘지전자 주식회사 Wireless communication system for high-speed moving object on fixed route
EP2337242B1 (en) * 2009-12-18 2014-05-14 Alcatel Lucent A method for transmission of data signals using an analogue radio frequency power amplifier, a transmitting device and a receiving device therefor
WO2011077246A2 (en) * 2009-12-21 2011-06-30 Dali Systems Co. Ltd Multi-band wideband power amplifier digital predistortion system
CN106160674A (en) 2009-12-21 2016-11-23 大力系统有限公司 For improving the system of the isolation between transmitter and receiver
US8542768B2 (en) 2009-12-21 2013-09-24 Dali Systems Co. Ltd. High efficiency, remotely reconfigurable remote radio head unit system and method for wireless communications
KR101763970B1 (en) * 2009-12-21 2017-08-14 달리 시스템즈 씨오. 엘티디. High efficiency, remotely reconfigurable remote radio head unit system for wireless communications
US8351877B2 (en) 2010-12-21 2013-01-08 Dali Systems Co. Ltfd. Multi-band wideband power amplifier digital predistorition system and method
KR101420898B1 (en) * 2009-12-23 2014-07-16 한국전자통신연구원 Method and apparatus for multi-mode ultra broadband wireless communications
JP2011160096A (en) * 2010-01-29 2011-08-18 Toshiba Corp Optical transmission circuit, optical reception circuit, and optically coupled isolation circuit
US8934774B2 (en) * 2010-03-02 2015-01-13 The University Of Sydney Phase shifter and photonic controlled beam former for phased array antennas
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
US8970217B1 (en) * 2010-04-14 2015-03-03 Hypres, Inc. System and method for noise reduction in magnetic resonance imaging
US8369303B2 (en) * 2010-07-28 2013-02-05 Intel Corporation Techniques for uplink multi-user MIMO MAC support
US8401600B1 (en) 2010-08-02 2013-03-19 Hypres, Inc. Superconducting multi-bit digital mixer
JP5066234B2 (en) * 2010-08-18 2012-11-07 株式会社エヌ・ティ・ティ・ドコモ Antenna device
SG189467A1 (en) 2010-10-20 2013-05-31 Aviat Networks Inc Systems and methods for improved power yield and linearization in radio frequency transmitters
US20120121036A1 (en) * 2010-11-17 2012-05-17 Cisco Technology, Inc. Method and apparatus for clock spur suppression in direct-rf modulators
US9112570B2 (en) * 2011-02-03 2015-08-18 Rf Micro Devices, Inc. Femtocell tunable receiver filtering system
CN102136871B (en) * 2011-02-24 2014-04-02 华为技术有限公司 Optical module device and signal receiving and sending method
US20120245845A1 (en) * 2011-03-24 2012-09-27 Honeywell International Inc. Triple redundant rf link system
EP2697863B1 (en) * 2011-04-11 2015-10-07 Telefonaktiebolaget L M Ericsson (PUBL) Radio module, radio assembly and corresponding method
US20120267961A1 (en) * 2011-04-21 2012-10-25 Advantest Corporation Wireless power supply apparatus
US8818299B2 (en) 2011-06-01 2014-08-26 Andrew Llc Broadband distributed antenna system with non-duplexer isolator sub-system
CN103828259B (en) * 2011-06-13 2018-03-09 Adc长途电讯有限公司 Distributing antenna system framework
EP2538585B1 (en) * 2011-06-20 2015-05-06 Alcatel Lucent Apparatuses, methods and computer programs for a remote unit and for a central unit of a base station transceiver
CN102299878B (en) * 2011-09-06 2014-03-19 电信科学技术研究院 Method and device for realizing multi-band digital predistortion (DPD)
US20130064545A1 (en) * 2011-09-12 2013-03-14 Chen-Kuo Sun Point-to-Multipoint Simultaneous Optical Transmission System
CN103858337B (en) 2011-09-22 2017-05-03 大力系统有限公司 System and method for increasing bandwidth for digital predistortion in multi-channel wideband communication systems
US9184842B2 (en) * 2011-10-06 2015-11-10 Telefonaktiebolaget L M Ericsson (Publ) Apparatus for communicating a plurality of antenna signals at different optical wavelengths
AU2012336027B2 (en) * 2011-11-07 2017-04-13 Dali Systems Co. Ltd. Soft hand-off and routing data in a virtualized Distributed Antenna System
WO2013082042A1 (en) 2011-11-28 2013-06-06 Dali Systems Co. Ltd Distributed antenna system and method for bandwidth compression and transport of noncontiguous signal frequency blocks
US9965250B2 (en) * 2011-12-07 2018-05-08 Quintessencelabs Pty Ltd. Integrated quantum-random noise generator using quantum vacuum states of light
US20130202307A1 (en) * 2012-02-08 2013-08-08 Harris Corporation, Corporation Of The State Of Delaware Phased antenna array including a plurality of electro-optical circuits spaced apart from and coupled to a plurality of antenna circuits and associated methods
US20130202306A1 (en) * 2012-02-08 2013-08-08 Harris Corporation, Corporation Of The State Of Delaware Phased antenna array including a plurality of electro-optical circuits with an electro-optical modulator and associated methods
US20130202308A1 (en) * 2012-02-08 2013-08-08 Harris Corporation, Corporation Of The State Of Delaware Phased antenna array including a plurality of electro-optical circuits having an optical source with an opto-electronic oscillator and associated methods
US9112748B2 (en) 2012-02-13 2015-08-18 Qualcomm Incorporated Reduction of small spurs in transmitters
ES2629402T3 (en) * 2012-03-09 2017-08-09 Huawei Technologies Co., Ltd. Method, device, device and system to cancel multi-carrier transmission interference
EP2640072A1 (en) * 2012-03-13 2013-09-18 Alcatel Lucent International System and method for transmitting a video signal
US9025963B2 (en) 2012-03-29 2015-05-05 Juniper Networks, Inc. Processing data in a coherent optical communication system
US8718172B2 (en) 2012-04-30 2014-05-06 Cisco Technology, Inc. Two stage precoding for multi-user MIMO systems
US8786337B2 (en) * 2012-05-14 2014-07-22 Ensphere Solutions, Inc. Low jitter clock generator for multiple lanes high speed data transmitter
JP5646553B2 (en) * 2012-07-06 2014-12-24 株式会社東芝 Antenna unit
US20140178077A1 (en) * 2012-08-14 2014-06-26 Titan Photonics, Inc. System and Method for Transmitting Multi-Octave Telecommunication Signals by Up-Shifting into a Sub-Octave Bandwidth
KR101954659B1 (en) 2012-08-14 2019-03-07 삼성전자주식회사 Apparatus and method for generating gussian pulse and ultra wide band communication apparatus for generating gussian pulse
US8913689B2 (en) 2012-09-24 2014-12-16 Dali Systems Co. Ltd. Wide bandwidth digital predistortion system with reduced sampling rate
US20150345349A1 (en) * 2012-10-08 2015-12-03 Serge V. Monros Diesel pollution control system
EP2915301B1 (en) 2012-10-31 2017-09-20 CommScope Technologies LLC Digital baseband transport in telecommunications distribution systems
US11189917B2 (en) * 2014-04-16 2021-11-30 Rearden, Llc Systems and methods for distributing radioheads
US10194346B2 (en) 2012-11-26 2019-01-29 Rearden, Llc Systems and methods for exploiting inter-cell multiplexing gain in wireless cellular systems via distributed input distributed output technology
US11050468B2 (en) 2014-04-16 2021-06-29 Rearden, Llc Systems and methods for mitigating interference within actively used spectrum
US11190947B2 (en) 2014-04-16 2021-11-30 Rearden, Llc Systems and methods for concurrent spectrum usage within actively used spectrum
US8687734B1 (en) * 2013-01-03 2014-04-01 Harris Corporation Non-causal orthogonal frequency division multiplexing tapered peak suppression
US9077440B2 (en) 2013-01-04 2015-07-07 Telefonaktiebolaget L M Ericsson (Publ) Digital suppression of transmitter intermodulation in receiver
US8995932B2 (en) 2013-01-04 2015-03-31 Telefonaktiebolaget L M Ericsson (Publ) Transmitter noise suppression in receiver
KR102178986B1 (en) 2013-01-18 2020-11-18 예일 유니버시티 Superconducting device with at least one enclosure
WO2014168665A2 (en) 2013-01-18 2014-10-16 Yale University Methods for making a superconducting device with at least one enclosure
FI125462B (en) * 2013-01-29 2015-10-15 Inverpolis Oy Procedures and systems for using a phased antenna array
US8934532B2 (en) 2013-02-25 2015-01-13 Itron, Inc. Simultaneous reception of multiple modulation schemes
US9252998B2 (en) 2013-02-25 2016-02-02 Itron, Inc. Radio to detect and compensate for frequency misalignment
US9426680B2 (en) 2013-02-25 2016-08-23 Itron, Inc. Real-time radio spectrum assessment engine
US9014307B2 (en) 2013-02-25 2015-04-21 Itron, Inc. Radio to analog-to-digital sample rate decoupled from digital subsystem
US9077487B2 (en) * 2013-02-25 2015-07-07 Itron, Inc. Radio to support channel plans of arbitrary width and/or spacing
US8913701B2 (en) 2013-02-25 2014-12-16 Itron, Inc. Multichannel radio receiver with overlapping channel filters
US8958506B2 (en) 2013-02-25 2015-02-17 Itron, Inc. FSK/MSK decoder
US10164698B2 (en) 2013-03-12 2018-12-25 Rearden, Llc Systems and methods for exploiting inter-cell multiplexing gain in wireless cellular systems via distributed input distributed output technology
RU2767777C2 (en) 2013-03-15 2022-03-21 Риарден, Ллк Systems and methods of radio frequency calibration using the principle of reciprocity of channels in wireless communication with distributed input - distributed output
WO2014169048A1 (en) * 2013-04-09 2014-10-16 Interdigital Patent Holdings, Inc. Joint precoding and multivariate backhaul compression for the downlink of cloud radio access networks
US9471880B2 (en) * 2013-04-12 2016-10-18 D-Wave Systems Inc. Systems and methods for interacting with a quantum computing system
US9055594B2 (en) * 2013-06-07 2015-06-09 Intel IP Corporation Reducing transmission signal artifact spacing
US9191112B2 (en) * 2013-08-07 2015-11-17 Raytheon Company Analog optical fiber-based signal distribution system and method
JP6508052B2 (en) * 2013-09-26 2019-05-08 日本電気株式会社 Signal transmission apparatus, distortion compensation apparatus, and signal transmission method
SG11201602942UA (en) 2013-10-15 2016-05-30 Univ Yale Low-noise josephson junction-based directional amplifier
US9794048B2 (en) * 2013-11-05 2017-10-17 Eutelsat S A System for transmitting and receiving radio frequency signals carrying complex harmonic modes
US9915688B2 (en) * 2013-12-09 2018-03-13 Dataflyte, Inc. Airborne data collection
US20170250927A1 (en) 2013-12-23 2017-08-31 Dali Systems Co. Ltd. Virtual radio access network using software-defined network of remotes and digital multiplexing switches
DE102013114797B4 (en) * 2013-12-23 2021-06-10 Apple Inc. Transceiver device and method for generating a compensation signal
US9065509B1 (en) * 2014-01-09 2015-06-23 Mediatek Inc. Methods and apparatus for envelope tracking system
EP3829122B1 (en) 2014-01-27 2023-08-30 CommScope Technologies LLC Multi-stage isolation sub-system for a remote antenna unit
EP3100388B1 (en) * 2014-02-04 2018-06-20 Huawei Technologies Co., Ltd. Direct-detected orthogonal frequency-division multiplexing with dispersion pre-compensation digital signal processing
US9948254B2 (en) 2014-02-21 2018-04-17 Yale University Wireless Josephson bifurcation amplifier
US9461675B2 (en) * 2014-02-25 2016-10-04 Fadhel M. Ghannouchi System and method for enhanced transmitter efficiency
US9520180B1 (en) 2014-03-11 2016-12-13 Hypres, Inc. System and method for cryogenic hybrid technology computing and memory
US9628180B2 (en) * 2014-03-31 2017-04-18 Infinera Corporation Configurable frequency domain equalizer for dispersion compensation of multiple sub-carriers
EP3407675B1 (en) 2014-04-15 2022-03-09 CommScope Technologies LLC Wideband remote unit for distributed antenna system
US11290162B2 (en) 2014-04-16 2022-03-29 Rearden, Llc Systems and methods for mitigating interference within actively used spectrum
JP6189789B2 (en) * 2014-05-15 2017-08-30 日本電信電話株式会社 Distributed wireless communication base station system and communication method
US9520903B2 (en) * 2014-05-20 2016-12-13 Honeywell International Inc. Interconnection fabric with protocol agnostic switch for flexible radio avionics
WO2016065246A1 (en) * 2014-10-23 2016-04-28 Amphenol Antenna Solutions, Inc. Active antenna array
AU2014410245B2 (en) 2014-10-29 2018-03-08 Northrop Grumman Systems Corporation Reciprocal quantum logic (RQL) circuit synthesis
US9306506B1 (en) * 2014-11-24 2016-04-05 Analog Devices Global Apparatus and methods for dual loop power amplifier digital pre-distortion systems
CN109768776B (en) * 2014-12-11 2021-12-31 华为技术有限公司 Radio frequency circuit, transmitter, base station and user terminal
EP3238351B1 (en) * 2014-12-23 2019-08-07 Leonardo Mw Ltd Down conversion system and method
EP3262573B1 (en) 2015-02-27 2024-04-03 Yale University Techniques for coupling planar qubits to non-planar resonators and related systems and methods
CA2977968C (en) 2015-02-27 2023-10-17 Yale University Techniques for producing quantum amplifiers and related systems and methods
EP3262762B1 (en) 2015-02-27 2021-11-10 Yale University Josephson junction-based circulators and related systems and methods
CN107683527A (en) 2015-04-17 2018-02-09 耶鲁大学 Wireless Josephson parameter converter
WO2016174805A1 (en) * 2015-04-28 2016-11-03 日本電気株式会社 Wireless access system and control method for same
EP3285417B1 (en) * 2015-05-19 2020-03-11 Nippon Telegraph And Telephone Corporation Optical communication system and optical communication method
US10897309B2 (en) * 2015-08-03 2021-01-19 Phase Sensitive Innovations, Inc. Distributed array for direction and frequency finding
US10177832B2 (en) * 2015-08-25 2019-01-08 Cellium Technologies, Ltd. Using a coaxial cable for distributing MIMO signals in-house
US10027374B1 (en) * 2015-08-25 2018-07-17 Cellium Technologies, Ltd. Systems and methods for wireless communication using a wire-based medium
US9391684B1 (en) * 2015-09-11 2016-07-12 Raytheon Company Asymmetric power amplifier for digital beam forming
US9992124B2 (en) 2015-10-09 2018-06-05 Itron, Inc. Multi-channel decoder architecture
US10193599B2 (en) * 2015-10-12 2019-01-29 Solid, Inc. Node unit of distributed antenna system
US10097281B1 (en) 2015-11-18 2018-10-09 Hypres, Inc. System and method for cryogenic optoelectronic data link
CN107852171B (en) * 2015-11-18 2021-11-05 弗劳恩霍夫应用研究促进协会 Signal processing system and signal processing method
US9838137B2 (en) * 2015-12-18 2017-12-05 Fujitsu Limited Device and method for transmitting optical signal in which a plurality of signals are multiplexed
CN108698815B (en) 2016-01-15 2022-04-08 耶鲁大学 Techniques for manipulating dual-qubit quantum states and related systems and methods
US10599988B2 (en) 2016-03-02 2020-03-24 D-Wave Systems Inc. Systems and methods for analog processing of problem graphs having arbitrary size and/or connectivity
ES2911517T3 (en) 2016-03-11 2022-05-19 Seakr Eng Inc Improving energy efficiency in beamforming RF systems
US9882654B1 (en) * 2016-03-17 2018-01-30 Hrl Laboratories, Llc Jammer-suppressed photonic-enabled RF link
US10727876B2 (en) 2016-03-18 2020-07-28 Jariet Technologies, Inc. Multi-channel, multi-band linearized digital transceivers
CN105978579A (en) * 2016-05-04 2016-09-28 惠州Tcl移动通信有限公司 Mobile terminal with multichannel transceiver and system
US20180284735A1 (en) * 2016-05-09 2018-10-04 StrongForce IoT Portfolio 2016, LLC Methods and systems for industrial internet of things data collection in a network sensitive upstream oil and gas environment
US10419046B2 (en) * 2016-05-26 2019-09-17 Mediatek Singapore Pte. Ltd Quadrature transmitter, wireless communication unit, and method for spur suppression
DE102016007193B4 (en) 2016-06-14 2018-04-26 Audi Ag Motor vehicle with radio modem, radio modem and method for exchanging communication data
US9891425B2 (en) * 2016-06-20 2018-02-13 Harris Corporation Communications system including an optical filter device and related methods
WO2018013756A1 (en) 2016-07-15 2018-01-18 Safe-Com Wireless A method, apparatus and system to amplify and transport analog signals
TWI814236B (en) * 2016-10-27 2023-09-01 美商李爾登公司 Systems and methods for distributing radioheads
MX2019004614A (en) * 2016-10-27 2019-09-05 Rearden Llc Systems and methods for distributing radioheads.
KR102054180B1 (en) * 2016-11-29 2020-01-22 한국전자통신연구원 Host device and remote radio head device for distributed antenna system supporting large data traffic
KR102478167B1 (en) * 2016-11-29 2022-12-16 한국전자통신연구원 Frequency allocation method and transmission apparatus for performing the method
EP3352388B1 (en) * 2017-01-19 2024-03-06 Rohde & Schwarz GmbH & Co. KG System and method for processing an electromagnetic signal
US10523388B2 (en) * 2017-04-17 2019-12-31 At&T Intellectual Property I, L.P. Method and apparatus for use with a radio distributed antenna having a fiber optic link
US10404364B2 (en) * 2017-05-01 2019-09-03 Teradyne, Inc. Switch matrix system
US10153814B1 (en) * 2017-06-13 2018-12-11 Corning Incorporated Massive multiple-input multiple-output (M-MIMO) wireless distribution system (WDS) and related methods for optimizing the M-MIMO WDS
US10615754B2 (en) 2017-08-10 2020-04-07 Commscope Technologies Llc Methods and apparatuses for digital pre-distortion
US10862620B2 (en) * 2017-09-25 2020-12-08 Dolby Laboratories Licensing Corporation Systems and methods to optimize the load of multipath data transportation
US10725361B1 (en) * 2017-10-02 2020-07-28 SeeQC Inc. Superconducting optical-to-digital converter
DE102017221257A1 (en) * 2017-11-28 2019-05-29 Audi Ag Radar system and method for operating a radar system
WO2019118442A1 (en) 2017-12-11 2019-06-20 Yale University Superconducting nonlinear asymmetric inductive element and related systems and methods
DE102018202544A1 (en) * 2018-02-20 2019-08-22 Audi Ag Systems for transmitting signals
US11481354B2 (en) 2018-04-24 2022-10-25 D-Wave Systems Inc. Systems and methods for calculating the ground state of non-diagonal Hamiltonians
US10432240B1 (en) * 2018-05-22 2019-10-01 Micron Technology, Inc. Wireless devices and systems including examples of compensating power amplifier noise
EP3782304A1 (en) * 2018-05-28 2021-02-24 Huawei Technologies Co., Ltd. A remote radio unit and a central unit for a base transceiver station
WO2019245533A1 (en) * 2018-06-19 2019-12-26 Nokia Solutions And Networks Oy Estmating a delay
US11593174B2 (en) 2018-10-16 2023-02-28 D-Wave Systems Inc. Systems and methods for scheduling programs for dedicated execution on a quantum processor
US10797795B2 (en) * 2018-11-27 2020-10-06 Facebook, Inc. System and method of satellite communication
US11223355B2 (en) 2018-12-12 2022-01-11 Yale University Inductively-shunted transmon qubit for superconducting circuits
WO2020150156A1 (en) 2019-01-17 2020-07-23 D-Wave Systems, Inc. Systems and methods for hybrid algorithms using cluster contraction
WO2020150348A1 (en) 2019-01-17 2020-07-23 Yale University Josephson nonlinear circuit
WO2020183392A1 (en) * 2019-03-12 2020-09-17 Uhnder, Inc. Method and apparatus for mitigation of low frequency noise in radar systems
US10715702B1 (en) * 2019-03-12 2020-07-14 Xilinx, Inc. Method of and circuit for predistortion for a cable TV amplifier
US10567063B1 (en) * 2019-03-20 2020-02-18 Analog Devices International Unlimited Company Phase shift module with an enhanced frequency multiplier and temperature compensation in local oscillator path
US11593695B2 (en) 2019-03-26 2023-02-28 D-Wave Systems Inc. Systems and methods for hybrid analog and digital processing of a computational problem using mean fields
US11075721B2 (en) 2019-04-29 2021-07-27 Itron, Inc. Channel plan management in a radio network
US11102050B2 (en) * 2019-04-29 2021-08-24 Itron, Inc. Broadband digitizer used for channel assessment
US10944442B1 (en) 2019-05-14 2021-03-09 Space Exploration Technologies Corp. Channel extraction digital beamforming
US10763905B1 (en) 2019-06-07 2020-09-01 Micron Technology, Inc. Wireless devices and systems including examples of mismatch correction scheme
US10742467B1 (en) * 2019-07-10 2020-08-11 United States Of America As Represented By Secretary Of The Navy Digital dynamic delay for analog power savings in multicarrier burst waveforms
US10826729B1 (en) * 2019-07-19 2020-11-03 Eagle Technology, Llc Communication system with adjustable equalization levels and related methods
US10770267B1 (en) * 2019-07-30 2020-09-08 Applied Materials, Inc. Methods and apparatus for supplying RF power to plasma chambers
US11714730B2 (en) 2019-08-20 2023-08-01 D-Wave Systems Inc. Systems and methods for high availability, failover and load balancing of heterogeneous resources
CN110601755B (en) * 2019-09-11 2020-07-31 南京航空航天大学 Microwave photon radio frequency cognitive system
US11569887B2 (en) * 2019-10-18 2023-01-31 Qualcomm Incorporated Precoding matrix identifier confirmation for post processing
KR20220098180A (en) * 2019-11-12 2022-07-11 블루 다뉴브 시스템스, 인크. Transmitter Signal Rejection of Phased Array Transceiver
CN112929088B (en) * 2019-12-06 2022-10-28 华为技术有限公司 Central unit, remote unit, small station system and communication method
JP2021129167A (en) * 2020-02-12 2021-09-02 日本電気株式会社 Optical radio transmission system
WO2021167905A1 (en) * 2020-02-17 2021-08-26 Sam Belkin Dynamically tunable radio frequency filter and applications
US11448722B2 (en) * 2020-03-26 2022-09-20 Intel Corporation Apparatus, system and method of communicating radar signals
US10972139B1 (en) 2020-04-15 2021-04-06 Micron Technology, Inc. Wireless devices and systems including examples of compensating power amplifier noise with neural networks or recurrent neural networks
CN113595642B (en) * 2020-04-30 2022-10-18 华为技术有限公司 Communication apparatus and communication system
US11182690B1 (en) 2020-05-02 2021-11-23 International Business Machines Corporation High fidelity waveform generator for qubit controller
US11409343B2 (en) 2020-05-02 2022-08-09 International Business Machines Corporation Quantum computing array
US11574228B2 (en) 2020-05-02 2023-02-07 International Business Machines Corporation Low power quantum controller
US11496341B2 (en) 2020-08-13 2022-11-08 Micron Technology, Inc. Wireless devices and systems including examples of compensating I/Q imbalance with neural networks or recurrent neural networks
TW202224363A (en) 2020-12-02 2022-06-16 稜研科技股份有限公司 Optical and electrical hybrid beamforming transmitter, receiver, and signal processing method
CN114584190A (en) * 2020-12-02 2022-06-03 稜研科技股份有限公司 Transmitter, receiver and signal processing method for photoelectric hybrid beam forming
EP4037207A1 (en) * 2021-01-28 2022-08-03 Nokia Solutions and Networks Oy Radio apparatus and system
CN113381822A (en) * 2021-07-13 2021-09-10 成都华日通讯技术股份有限公司 Radio monitoring device and method
FI20216045A1 (en) * 2021-10-08 2022-05-19 Nokia Solutions & Networks Oy Cfr error deposition out of the transmission band
CN114124140B (en) * 2021-11-30 2023-05-05 Oppo广东移动通信有限公司 Radio frequency system and communication device
CN116388779A (en) * 2021-12-23 2023-07-04 深圳市中兴微电子技术有限公司 Signal processing circuit, chip, circuit board assembly and radio frequency transceiver
CN114205051B (en) * 2021-12-24 2023-08-15 西安电子科技大学 Cognitive interference system based on radio platform
WO2024026108A1 (en) * 2022-07-29 2024-02-01 Viasat, Inc. Small-signal centric scalable, massive signal processing gain architecture
CN116320329B (en) * 2023-05-10 2023-09-15 深圳芯迈微科技有限公司 Integrated chip of optical fiber access terminal system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5838474A (en) * 1995-09-08 1998-11-17 Siemens Aktiengesellschaft Process and circuit arrangement for transmitting received signals from an antenna to a base station of a radio system
US6571110B1 (en) * 1995-08-09 2003-05-27 David O. Patton Cryoelectronic receiver front end for mobile radio systems
US20040162042A1 (en) * 2002-12-03 2004-08-19 Ntt Docomo, Inc. High sensitivity radio receiver

Family Cites Families (281)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3324295A (en) 1963-11-07 1967-06-06 Research Corp Frequency modulation discriminator for optical signals
US3999105A (en) 1974-04-19 1976-12-21 International Business Machines Corporation Liquid encapsulated integrated circuit package
US4038600A (en) 1976-02-17 1977-07-26 Westinghouse Electric Corporation Power control on satellite uplinks
US4306313A (en) 1979-10-11 1981-12-15 International Telephone And Telegraph Corporation High reliability optical fiber communication system
GB2107147B (en) 1981-09-03 1985-07-10 Standard Telephones Cables Ltd Optical requency modulation system
DE3787902T2 (en) 1986-02-17 1994-02-17 Nec Corp Optical transmitter with an optical frequency discriminator.
FR2677834B1 (en) 1986-09-16 1993-12-31 Thomson Csf LASER IMAGING SYSTEM WITH DETECTOR BAR.
CA1279414C (en) 1987-06-26 1991-01-22 Makoto Nishio Apparatus for discriminating an optical signal from others and an apparatus for tuning an optical wavelength filter used in the same
GB2211051B (en) * 1987-10-10 1991-07-10 Stc Plc Code correlation arrangement
US4922452A (en) * 1987-11-16 1990-05-01 Analytek, Ltd. 10 Gigasample/sec two-stage analog storage integrated circuit for transient digitizing and imaging oscillography
US4975926A (en) * 1989-03-30 1990-12-04 Guenther Knapp Wireless indoor data communication system
US4953157A (en) 1989-04-19 1990-08-28 American Telephone And Telegraph Company Programmable data packet buffer prioritization arrangement
US5253309A (en) 1989-06-23 1993-10-12 Harmonic Lightwaves, Inc. Optical distribution of analog and digital signals using optical modulators with complementary outputs
US5010346A (en) * 1989-10-27 1991-04-23 The Boeing Company Electro-optical analog-to-digital converter and method for digitizing an analog signal
US5101501A (en) 1989-11-07 1992-03-31 Qualcomm Incorporated Method and system for providing a soft handoff in communications in a cdma cellular telephone system
US5257283A (en) 1989-11-07 1993-10-26 Qualcomm Incorporated Spread spectrum transmitter power control method and system
EP0476569B1 (en) 1990-09-17 1996-12-18 Nec Corporation Mobile communication system
US5067173A (en) 1990-12-20 1991-11-19 At&T Bell Laboratories Microcellular communications system using space diversity reception
US5321849A (en) * 1991-05-22 1994-06-14 Southwestern Bell Technology Resources, Inc. System for controlling signal level at both ends of a transmission link based on a detected valve
US5177750A (en) 1991-07-30 1993-01-05 Hewlett-Packard Company Misalignment-tolerant, grating-tuned external-cavity laser with enhanced longitudinal mode selectivity
US5247309A (en) * 1991-10-01 1993-09-21 Grumman Aerospace Corporation Opto-electrical transmitter/receiver module
EP0554736B1 (en) 1992-02-01 1996-04-10 Alcatel SEL Aktiengesellschaft Digital optical transmission system with a dispersing optical waveguide at the working wavelength
US5267261A (en) 1992-03-05 1993-11-30 Qualcomm Incorporated Mobile station assisted soft handoff in a CDMA cellular communications system
US5412474A (en) 1992-05-08 1995-05-02 Smithsonian Institution System for measuring distance between two points using a variable frequency coherent source
US5339184A (en) 1992-06-15 1994-08-16 Gte Laboratories Incorporated Fiber optic antenna remoting for multi-sector cell sites
US5293545A (en) 1992-07-27 1994-03-08 General Instrument Corporation Optical source with reduced relative intensity noise
DE4234599A1 (en) 1992-08-22 1994-02-24 Sel Alcatel Ag Optical transmitter
US5627879A (en) 1992-09-17 1997-05-06 Adc Telecommunications, Inc. Cellular communications system with centralized base stations and distributed antenna units
US5274381A (en) 1992-10-01 1993-12-28 General Electric Co. Optical controller with independent two-dimensional scanning
US5359412A (en) 1992-10-20 1994-10-25 Massachusetts Institute Of Technology Optical frequency discriminator using two mach-zehnder interferometer arrangement
US5416629A (en) 1992-12-02 1995-05-16 General Instrument Corporation Intensity modulated digital optical communications using a frequency modulated signal laser
US5373383A (en) 1993-03-02 1994-12-13 The Boeing Company Optical carrier filtering for signal/noise and dynamic range improvement
US5574982A (en) 1993-05-14 1996-11-12 Telefonaktiebolaget Lm Ericsson Method and apparatus for regulating a power level of a transmitted radio signal
US5406588A (en) * 1993-05-28 1995-04-11 Motorola, Inc. Method and apparatus for mitigating distortion effects in the determination of signal usability
US5457734A (en) 1993-07-08 1995-10-10 At&T Ipm Corp. Multi-band cellular radiotelephone system architecture
US5450223A (en) 1993-09-07 1995-09-12 Martin Marietta Corp. Optical demultiplexer for optical/RF signals
US5495484A (en) 1993-10-12 1996-02-27 Dsc Communications Corporation Distributed telecommunications switching system
US5465264A (en) 1993-11-22 1995-11-07 Xerox Corporation Electronic simulation for compensating laser diode thermal effects
WO1995027346A1 (en) 1994-03-30 1995-10-12 British Telecommunications Public Limited Company Generation of radio frequency modulated optical radiation
US5798854A (en) * 1994-05-19 1998-08-25 Ortel Corporation In-line predistorter for linearization of electronic and optical signals
US6288814B1 (en) * 1994-05-19 2001-09-11 Ortel Corporation In-line predistorter for linearization of electronic and optical signals
DE4424778C1 (en) 1994-07-14 1995-11-16 Grundig Emv Methods of transmission and methods of receiving local radio programs in a single-frequency network and associated transmitters and receivers
JP3538907B2 (en) 1994-08-19 2004-06-14 セイコーエプソン株式会社 Broadcast wave receiver for mobile
US5566173A (en) 1994-10-12 1996-10-15 Steinbrecher Corporation Communication system
JP2616468B2 (en) 1994-11-25 1997-06-04 日本電気株式会社 Optical microcell transmission system
US5856980A (en) 1994-12-08 1999-01-05 Intel Corporation Baseband encoding method and apparatus for increasing the transmission rate over a communication medium
US5592327A (en) 1994-12-16 1997-01-07 Clark-Mxr, Inc. Regenerative amplifier incorporating a spectral filter within the resonant cavity
US5579341A (en) 1994-12-29 1996-11-26 Motorola, Inc. Multi-channel digital transceiver and method
US5477368A (en) 1994-12-29 1995-12-19 At&T Corp. High power lightwave transmitter using highly saturated amplifier for residual AM suppression
US6115162A (en) 1995-01-10 2000-09-05 Harris Corporation Double side band, carrier suppressed modulated coherent fiber optic link
JPH0998465A (en) 1995-09-29 1997-04-08 Nec Corp Portable radio telephone control method and portable radio telephone set
US5751242A (en) * 1995-09-30 1998-05-12 Northrop Grumman Corporation Transmit-receive fiber-optic manifold for phase array antennas
DE19538302C2 (en) 1995-10-16 2001-03-22 Bosch Gmbh Robert Methods for terrestrial transmission of digital signals
US5920821A (en) 1995-12-04 1999-07-06 Bell Atlantic Network Services, Inc. Use of cellular digital packet data (CDPD) communications to convey system identification list data to roaming cellular subscriber stations
US5710651A (en) 1995-12-13 1998-01-20 California Institute Of Technology Remote millimeter-wave antenna fiber optic communication system using dual optical signal with millimeter-wave beat frequency
US5737104A (en) 1995-12-18 1998-04-07 Dicon Fiberoptics Wavelength division multiplexer and demultiplexer
FR2745451B1 (en) 1996-02-23 1998-04-17 Cit Alcatel METHOD FOR OPTICAL TRANSMISSION OF DIGITAL DATA
US5953139A (en) 1996-03-06 1999-09-14 Cfx Communications Systems, Llc Wavelength division multiplexing system
US5805235A (en) 1996-04-03 1998-09-08 Hyundai Electronics America Bookmarking television program and channel selections
US5812600A (en) * 1996-07-26 1998-09-22 Motorola, Inc. Method and apparatus for mitigating distortion effects in the determination of signal usability
US5963351A (en) * 1996-08-23 1999-10-05 Conductus, Inc. Digital optical receiver with instantaneous Josephson clock recovery circuit
US6125276A (en) 1996-09-06 2000-09-26 Telefonaktiebolaget Lm Ericsson (Publ) Inter-exchange signaling for in-call service change requests
US5770472A (en) 1996-09-09 1998-06-23 The United States Of America As Represented By The Secretary Of The Army Method for making monolithically integrated signal processing circuit having active and passive components
US6016426A (en) * 1996-10-10 2000-01-18 Mvs, Incorporated Method and system for cellular communication with centralized control and signal processing
JP3369063B2 (en) 1996-10-18 2003-01-20 松下電器産業株式会社 Mobile communication terminal
US5777773A (en) 1996-10-31 1998-07-07 Northern Telecom Limited Optical frequency control system and method
JP3687229B2 (en) 1996-11-08 2005-08-24 ソニー株式会社 COMMUNICATION METHOD, BASE STATION, AND TERMINAL DEVICE
US5963567A (en) 1997-02-13 1999-10-05 Lucent Technologies, Inc. Multi-wavelength laser source
US5859611A (en) 1997-02-21 1999-01-12 Hughes Electronics Corporation Mixing and modulating methods and structures using nonlinear optical amplifiers
JPH10262274A (en) 1997-03-19 1998-09-29 Fujitsu Ltd Mobile station and soft hand-off method
US6459519B1 (en) 1997-04-09 2002-10-01 Matsushita Electric Industrial Co., Ltd. Optical transmitter-receiver
US5940196A (en) 1997-05-16 1999-08-17 Harmonic Lightwaves, Inc. Optical communications system with wavelength division multiplexing
JP2990098B2 (en) 1997-05-21 1999-12-13 埼玉日本電気株式会社 Terminal-driven mobile communication system
US6096496A (en) 1997-06-19 2000-08-01 Frankel; Robert D. Supports incorporating vertical cavity emitting lasers and tracking apparatus for use in combinatorial synthesis
US6115403A (en) 1997-07-22 2000-09-05 Ciena Corporation Directly modulated semiconductor laser having reduced chirp
DE19737482A1 (en) 1997-08-28 1999-03-04 Alsthom Cge Alcatel Process for optical transmission over an optical fiber network, and optical transmission network
US5942997A (en) * 1997-08-29 1999-08-24 Trw Inc. Correlated superconductor single flux quantum analog-to-digital converter
US5959499A (en) * 1997-09-30 1999-09-28 Motorola, Inc. Predistortion system and method using analog feedback loop for look-up table training
US6081361A (en) 1997-10-17 2000-06-27 Lucent Technologies Inc. Sub-carrier multiplexing in broadband optical networks
JP3952227B2 (en) 1997-10-20 2007-08-01 富士通株式会社 Wavelength converter
US6330609B1 (en) 1997-11-07 2001-12-11 Lucent Technologies, Inc. Admission control system and method for media-on-demand servers
US6137612A (en) 1998-01-02 2000-10-24 Motorola, Inc. Method and system for channelization and down conversion of wideband subscriber information signals
US6201638B1 (en) 1998-01-23 2001-03-13 University Technology Corporation Comb generating optical cavity that includes an optical amplifier and an optical modulator
US6108529A (en) * 1998-02-01 2000-08-22 Bae Systems Aerospace Electronics Inc. Radio system including FET mixer device and square-wave drive switching circuit and method therefor
WO1999041839A1 (en) * 1998-02-12 1999-08-19 Koninklijke Philips Electronics N.V. A method and device for nonlinear likelihood sequence estimation
DE69925800T2 (en) 1998-02-19 2006-05-04 Qualcomm, Inc., San Diego METHOD AND DEVICE FOR MAXIMIZING THE REST PERIOD USING A QUICK RUN CHANNEL
EP0940930B1 (en) 1998-03-03 2012-09-26 NEC Corporation Method of controlling transmission power in a cellular type mobile communication system
US6104851A (en) 1998-04-24 2000-08-15 Mahgerefteh; Daniel Transmission system comprising a semiconductor laser and a fiber grating discriminator
US5974209A (en) 1998-04-30 1999-10-26 Cho; Pak Shing System comprising an electroabsorption modulator and an optical discriminator
GB9813412D0 (en) 1998-06-23 1998-08-19 Cambrian Systems Corp Optical FSK modulation and demodulation based on the thermal chirp for optical path overhead transfer using asymmetrical mach-zehnder interferometer
US6600792B2 (en) * 1998-06-26 2003-07-29 Qualcomm Incorporated Predistortion technique for high power amplifiers
US6331991B1 (en) 1998-07-17 2001-12-18 The United States Of America As Represented By The National Security Agency Transmission system using a semiconductor laser and a fiber grating discriminator
FR2781322B1 (en) 1998-07-20 2000-09-08 Alsthom Cge Alcatel OPTICAL DATA TRANSMISSION DEVICE
US6127960A (en) * 1998-07-31 2000-10-03 Trw Inc. Direct digital downconverter based on an oscillator/counter analog-to-digital converter
US6459743B1 (en) * 1998-08-07 2002-10-01 Telefonaktiebolaget Lm Ericsson (Publ) Digital reception with radio frequency sampling
US6222861B1 (en) 1998-09-03 2001-04-24 Photonic Solutions, Inc. Method and apparatus for controlling the wavelength of a laser
US6246500B1 (en) 1998-09-18 2001-06-12 Massachusetts Institute Of Technology Linearization of a broadband analog optical link using two wavelengths
US6359716B1 (en) 1999-02-24 2002-03-19 Massachusetts Institute Of Technology All-optical analog FM optical receiver
US6546249B1 (en) * 1999-02-26 2003-04-08 Sumitomo Electric Industries, Ltd Seamless two-way roadway communication system
US6519374B1 (en) * 1999-03-30 2003-02-11 Uniphase Corporation Predistortion arrangement using mixers in nonlinear electro-optical applications
US6473214B1 (en) 1999-04-01 2002-10-29 Nortel Networks Limited Methods of and apparatus for optical signal transmission
US6574389B1 (en) * 1999-05-24 2003-06-03 Broadband Royalty Optical communication with pre-compensation for odd order distortion in modulation and transmission
US7079780B1 (en) 1999-05-28 2006-07-18 Northrop Grumman Corporation Linearized optical link using a single Mach-Zehnder modulator and two optical carriers
US7127172B1 (en) * 1999-06-02 2006-10-24 Massachusetts Institute Of Technology Optical frequency filter
US7366470B1 (en) * 1999-06-24 2008-04-29 Intel Corporation Inter-modulation distortion compensation
US6583906B1 (en) * 1999-06-30 2003-06-24 Koninklijke Philips Electronics N.V. Pre-shaping laser modulation signals to increase modulation index
GB2351624B (en) * 1999-06-30 2003-12-03 Wireless Systems Int Ltd Reducing distortion of signals
EP1767097A3 (en) * 1999-08-16 2007-04-04 DSMIP Assets B.V. Green tea extracts
CN1155172C (en) 1999-08-20 2004-06-23 富士通株式会社 Optical communication system, optical receiver and walvelength converter
JP3784585B2 (en) 1999-08-26 2006-06-14 富士通株式会社 Method, optical device and system for optical fiber transmission
US6348890B1 (en) 1999-08-26 2002-02-19 Hrl Laboratories, Llc Phased array antenna beamformer
US6574259B1 (en) 1999-09-02 2003-06-03 Agility Communications, Inc. Method of making an opto-electronic laser with integrated modulator
US6879640B1 (en) * 1999-10-20 2005-04-12 Broadcom Corporation Method, apparatus and system for high-speed transmission on fiber optic channel
US6519065B1 (en) 1999-11-05 2003-02-11 Jds Fitel Inc. Chromatic dispersion compensation device
US6704353B1 (en) * 1999-11-29 2004-03-09 Cyntrust Communications, Inc. Method and apparatus for tracking the magnitude of channel induced distortion to a transmitted signal
US6634811B1 (en) 1999-11-30 2003-10-21 Jds Corporation High performance optical link
US6510255B2 (en) * 1999-12-24 2003-01-21 Matsushita Electric Industrial Co., Ltd. Optical transmission apparatus
US6674808B1 (en) * 1999-12-28 2004-01-06 General Dynamics Decision Systems, Inc. Post-amplifier filter rejection equalization
US20060291868A1 (en) 1999-12-29 2006-12-28 Forster Energy Llc Optical communications using multiplexed single sideband transmission and heterodyne detection
US6804471B1 (en) 2000-01-05 2004-10-12 Hrl Laboratories Llc Apparatus and method of pulsed frequency modulation for analog optical communication
US6687466B1 (en) * 2000-01-06 2004-02-03 Adc Telecommunications, Inc. Dynamic distortion control
EP1122921B1 (en) 2000-02-02 2005-11-30 Telefonaktiebolaget LM Ericsson (publ) Circuit and method for providing a digital data signal with pre-distortion
US6901224B1 (en) 2000-02-18 2005-05-31 Northrop Grumman Corporation Hybrid coherent-optical, RF signal channelizer
US6834134B2 (en) 2000-04-11 2004-12-21 3M Innovative Properties Company Method and apparatus for generating frequency modulated pulses
US6452546B1 (en) 2000-06-14 2002-09-17 Hrl Laboratories, Llc Wavelength division multiplexing methods and apparatus for constructing photonic beamforming networks
US6760342B1 (en) 2000-06-28 2004-07-06 Northrop Grumman Corporation Channelizer for a multi-carrier receiver
US6298186B1 (en) 2000-07-07 2001-10-02 Metrophotonics Inc. Planar waveguide grating device and method having a passband with a flat-top and sharp-transitions
US7245638B2 (en) * 2000-07-21 2007-07-17 Broadcom Corporation Methods and systems for DSP-based receivers
WO2002012952A2 (en) 2000-08-04 2002-02-14 Evankow Joseph David Jr Apparatus for polarization-independent optical polarization scrambler and a method for use therein
WO2002015416A2 (en) 2000-08-17 2002-02-21 Terabit Communications, L.L.C. High-speed communications system
US6577013B1 (en) 2000-09-05 2003-06-10 Amkor Technology, Inc. Chip size semiconductor packages with stacked dies
US6388600B1 (en) * 2000-11-13 2002-05-14 Trw Inc. Asynchronous superconductor serial multiply-accumulator
US7251297B2 (en) * 2000-11-22 2007-07-31 Broadcom Corporation Method and system to identify and characterize nonlinearities in optical communications channels
US6823178B2 (en) * 2001-02-14 2004-11-23 Ydi Wireless, Inc. High-speed point-to-point modem-less microwave radio frequency link using direct frequency modulation
US6778307B2 (en) 2001-02-21 2004-08-17 Beyond 3, Inc. Method and system for performing swept-wavelength measurements within an optical system
EP1235403B1 (en) 2001-02-22 2012-12-05 Panasonic Corporation Combined frequency and amplitude modulation
US6643417B2 (en) 2001-03-16 2003-11-04 The United States Of America As Represented By The Secretary Of The Navy All optical image reject down-converter
US6621836B2 (en) 2001-03-29 2003-09-16 The United States Of America As Represented By The Secretary Of The Navy Tunable multi-frequency vertical cavity surface emitting laser
KR100408187B1 (en) 2001-04-24 2003-12-03 한국과학기술원 Transmission system of frequency modulated optical signal and Power and optical frequency monitoring system of frequency modulated optical signal
US6525682B2 (en) * 2001-05-03 2003-02-25 Hrl Laboratories, Llc Photonic parallel analog-to-digital converter
US7076170B2 (en) 2001-05-14 2006-07-11 University Of Maryland, Baltimore County System and method for generating analog transmission signals
US20020176659A1 (en) 2001-05-21 2002-11-28 Jds Uniphase Corporation Dynamically tunable resonator for use in a chromatic dispersion compensator
US6741139B2 (en) * 2001-05-22 2004-05-25 Ydi Wirelesss, Inc. Optical to microwave converter using direct modulation phase shift keying
US6496079B1 (en) * 2001-05-22 2002-12-17 Telaxis Communications Corporation Optical to microwave converter using direct modulation phase shift keying
US6826164B2 (en) 2001-06-08 2004-11-30 Nextg Networks Method and apparatus for multiplexing in a wireless communication infrastructure
US7127175B2 (en) 2001-06-08 2006-10-24 Nextg Networks Method and apparatus for multiplexing in a wireless communication infrastructure
US6826163B2 (en) 2001-06-08 2004-11-30 Nextg Networks Method and apparatus for multiplexing in a wireless communication infrastructure
GB2376584B (en) * 2001-06-15 2005-02-16 Wireless Systems Int Ltd Signal correction techniques
US6597836B2 (en) 2001-06-20 2003-07-22 The Boeing Company Optical phased array control system
JP3731505B2 (en) 2001-07-18 2006-01-05 日本電気株式会社 Optical receiver, optical data signal waveform optimization method, and optical data signal waveform optimization program
US6836487B1 (en) 2001-08-31 2004-12-28 Nlight Photonics Corporation Spectrally tailored raman pump laser
US6950452B2 (en) 2001-09-28 2005-09-27 The Furukawa Electric Co., Ltd. Semiconductor laser module and method for simultaneously reducing relative intensity noise (RIN) and stimulated brillouin scattering (SBS)
AU2002334906A1 (en) 2001-10-09 2003-04-22 Infinera Corporation Transmitter photonic integrated circuits (txpic) and optical transport networks employing txpics
US7426350B1 (en) * 2001-10-26 2008-09-16 Cisco Technology, Inc. Hybrid optical and electrical fiber optic link linearizer
US7208992B1 (en) * 2001-11-08 2007-04-24 C-Cor.Net Corporation Lossy linearizers for analog optical transmitters
US6724523B2 (en) 2001-11-15 2004-04-20 Hrl Laboratories, Llc Remotely locatable RF power amplification system
US6748133B2 (en) 2001-11-26 2004-06-08 Alliance Fiber Optic Products, Inc. Compact multiplexing/demultiplexing modules
SE523400C2 (en) * 2001-11-30 2004-04-13 Ericsson Telefon Ab L M Cellular radio communication system utilizing wireless optical links and method of operating the system
KR100444176B1 (en) 2001-12-15 2004-08-09 한국전자통신연구원 Optical deflector operated by electric signal and external cavity type of wave length tunable using the same
US7209669B2 (en) 2002-02-01 2007-04-24 Lucent Technologies Inc. Method and apparatus for synchronizing a pulse carver and a data modulator for optical telecommunication
JP2003338805A (en) 2002-03-15 2003-11-28 Kddi Submarine Cable Systems Inc Optical transmission system, optical transmitter and methods thereof
GB0206226D0 (en) 2002-03-16 2002-05-01 Intense Photonics Ltd Electro-absorption modulator with broad optical bandwidth
US7313199B2 (en) 2002-03-21 2007-12-25 Hypres, Inc. Power amplifier linearization
US6677877B2 (en) * 2002-03-29 2004-01-13 The United States Of America As Represented By The Secretary Of The Navy Comparator, analog-to-digital converter and method of analog-to-digital conversion using non-linear magneto-electronic device
US20030193974A1 (en) 2002-04-16 2003-10-16 Robert Frankel Tunable multi-wavelength laser device
JP4332616B2 (en) 2002-04-23 2009-09-16 独立行政法人情報通信研究機構 Method and apparatus for signal processing of modulated light
US6996345B1 (en) 2002-05-10 2006-02-07 The United States Of America As Represented By The Secretary Of The Air Force Linearization of intensity modulators using quadratic electro-optic effect
US7034678B2 (en) 2002-07-02 2006-04-25 Tri-Sentinel, Inc. First responder communications system
US7663762B2 (en) 2002-07-09 2010-02-16 Finisar Corporation High-speed transmission system comprising a coupled multi-cavity optical discriminator
US6963685B2 (en) 2002-07-09 2005-11-08 Daniel Mahgerefteh Power source for a dispersion compensation fiber optic system
US7263291B2 (en) 2002-07-09 2007-08-28 Azna Llc Wavelength division multiplexing source using multifunctional filters
US20040208590A1 (en) * 2002-07-12 2004-10-21 Adtran, Inc. Fiber-optic interconnect arrangement for providing lightning-protection coupling of baseband processor to radio frequency transceiver
US7280623B2 (en) * 2002-08-02 2007-10-09 Hypres, Inc. Digital RF correlator for multipurpose digital signal processing
US6778309B2 (en) 2002-08-22 2004-08-17 Triquint Technology Holding Co. Electroabsorption modulator with tunable chirp
US20040076199A1 (en) 2002-08-22 2004-04-22 Agility Communications, Inc. Chirp control of integrated laser-modulators having multiple sections
US20040052536A1 (en) * 2002-09-17 2004-03-18 General Instrument Corporation Second order predistortion circuit
US7756421B2 (en) * 2002-10-03 2010-07-13 Ciena Corporation Electrical domain compensation of non-linear effects in an optical communications system
US7382984B2 (en) * 2002-10-03 2008-06-03 Nortel Networks Limited Electrical domain compensation of optical dispersion in an optical communications system
US7054538B2 (en) 2002-10-04 2006-05-30 Azna Llc Flat dispersion frequency discriminator (FDFD)
US6898379B2 (en) * 2002-11-05 2005-05-24 Finisar Corporation System and method for reducing interference in an optical data stream
US20060029397A1 (en) 2002-11-06 2006-02-09 Daniel Mahgerefteh Method and apparatus for transmitting a signal using simultaneous FM and AM modulation
US7555225B2 (en) 2002-11-06 2009-06-30 Finisar Corporation Optical system comprising an FM source and a spectral reshaping element
US7406267B2 (en) 2002-11-06 2008-07-29 Finisar Corporation Method and apparatus for transmitting a signal using thermal chirp management of a directly modulated transmitter
US7536113B2 (en) 2002-11-06 2009-05-19 Finisar Corporation Chirp managed directly modulated laser with bandwidth limiting optical spectrum reshaper
US7564889B2 (en) 2002-11-06 2009-07-21 Finisar Corporation Adiabatically frequency modulated source
US7406266B2 (en) 2002-11-06 2008-07-29 Finisar Corporation Flat-topped chirp induced by optical filter edge
US7433605B2 (en) 2002-11-06 2008-10-07 Finisar Corporation Adiabatic frequency modulated transmitter with negative chirp
US7280721B2 (en) 2002-11-06 2007-10-09 Azna Llc Multi-ring resonator implementation of optical spectrum reshaper for chirp managed laser technology
US7245833B1 (en) 2002-11-15 2007-07-17 Itt Manufacturing Enterprises, Inc. Photonic channelized RF receiver employing dense wavelength division multiplexing
US7440490B2 (en) 2002-12-18 2008-10-21 Anna Kidiyarova-Shevchenko Method and apparatus for multi-user detection using RSFQ successive interference cancellation in CDMA wireless systems
US6781435B1 (en) 2003-02-03 2004-08-24 Hypres, Inc. Apparatus and method for converting a multi-bit signal to a serial pulse stream
US7424228B1 (en) * 2003-03-31 2008-09-09 Lockheed Martin Corporation High dynamic range radio frequency to optical link
US7200339B1 (en) * 2003-04-11 2007-04-03 Nortel Networks Limited Method and apparatus for laser line-width compensation
US7272327B2 (en) * 2003-04-29 2007-09-18 Nortel Networks Limited Multi-detector detection of optical signals
US6750794B1 (en) * 2003-05-05 2004-06-15 Northrop Grumman Corporation Application of single flux quantum pulse interaction to the simultaneous sampling in-phase and quadrature analog-to-digital converter
US7324036B2 (en) * 2003-05-12 2008-01-29 Hrl Laboratories, Llc Adaptive, intelligent transform-based analog to information converter method and system
EP1494413A1 (en) * 2003-07-02 2005-01-05 CoreOptics, Inc., c/o The Corporation Trust Center Channel estimation and sequence estimation for the reception of optical signal
US6947206B2 (en) 2003-07-18 2005-09-20 Kailight Photonics, Inc. All-optical, tunable regenerator, reshaper and wavelength converter
US7603045B2 (en) * 2003-08-28 2009-10-13 Fujitsu Limited Method and system for automatic feedback control for fine tuning a delay interferometer
US7446622B2 (en) * 2003-09-05 2008-11-04 Infinera Corporation Transmission line with low dispersive properties and its application in equalization
US7057716B2 (en) 2003-10-28 2006-06-06 Hrl Laboratories, Llc White cell antenna beamformers
US7006726B2 (en) 2003-11-21 2006-02-28 Hrl Laboratories, Llc Method and apparatus for optical division of a broadband signal into a plurality of sub-band channels
JP2005175826A (en) * 2003-12-10 2005-06-30 Matsushita Electric Ind Co Ltd Optical fiber radio transmission system, transmitter, and receiver
US7915954B2 (en) * 2004-01-16 2011-03-29 Qualcomm, Incorporated Amplifier predistortion and autocalibration method and apparatus
US7146169B2 (en) 2004-03-17 2006-12-05 Motorola, Inc. Power balancing for downlink fast power control using central processing
US7466925B2 (en) * 2004-03-19 2008-12-16 Emcore Corporation Directly modulated laser optical transmission system
JP2007533179A (en) 2004-04-09 2007-11-15 ユーティー シ ダ カン トン スン ヨウ シアン ゴン シ Signal transmission method and system based on radio frequency extension base station
US8538272B1 (en) * 2004-04-22 2013-09-17 Ciena Corporation Data security in optical communications systems
US7697929B2 (en) 2004-05-20 2010-04-13 Pine Valley Investments, Inc. Millimeter wave communication system
US20050271394A1 (en) 2004-06-02 2005-12-08 James Whiteaway Filter to improve dispersion tolerance for optical transmission
GB2415309A (en) 2004-06-18 2005-12-21 Univ Kent Canterbury Electro-magnetic terahertz transmission/reception system
EP1768264B1 (en) * 2004-07-14 2012-10-17 NGK Insulators, Ltd. Radio oscillation device and radar device
US7805082B1 (en) * 2004-09-21 2010-09-28 Ciena Corporation Optical laser control for optical communications systems
US20060083520A1 (en) * 2004-10-15 2006-04-20 Peter Healey Communication by radio waves and optical waveguides
WO2006051849A1 (en) * 2004-11-11 2006-05-18 Nippon Telegraph And Telephone Corporation Optical transporting apparatus, optical transmission system, optical transporting method, and optical transmission method
US7266269B2 (en) 2004-12-16 2007-09-04 General Electric Company Power harvesting
GB2421649A (en) * 2004-12-23 2006-06-28 Nortel Networks Ltd Electrical predistortion of optical signals
US7477852B2 (en) 2005-01-31 2009-01-13 Alcatel-Lucent Usa Inc. Optical receiver apparatus and method
US7957648B2 (en) 2005-02-28 2011-06-07 The Invention Science Fund I, Llc Electromagnetic device with integral non-linear component
US7302185B2 (en) 2005-03-08 2007-11-27 Harris Corporation Device and method for millimeter wave detection and block conversion
USRE44647E1 (en) * 2005-03-15 2013-12-17 Emcore Corporation Directly modulated laser optical transmission system with phase modulation
EP1861901B1 (en) 2005-03-17 2016-06-01 Oewaves, Inc. Coupled and non-coupled opto-electronic oscillators with enhanced performance
US7206062B2 (en) * 2005-04-18 2007-04-17 Raytheon Company Readout integrated circuit (ROIC) for laser detection and ranging (LADAR) system and method for using same
WO2006128250A1 (en) * 2005-06-03 2006-12-07 The Commonwealth Of Australia Photonic link with improved dynamic range
WO2007002182A1 (en) * 2005-06-21 2007-01-04 Stheno Corporation Improved systems and methods for chiral detection and analysis
US7369779B1 (en) 2005-07-14 2008-05-06 Research Foundation Of The University Of Central Florida Regeneration of optical phase modulated signals
US7369715B2 (en) 2005-08-22 2008-05-06 University Of Victoria Innovation And Development Corporation Photonic link using angle modulation and method of use thereof
JP2007079466A (en) * 2005-09-16 2007-03-29 Ngk Insulators Ltd Radio oscillation device and radar system
US8565345B2 (en) * 2005-10-04 2013-10-22 Hypres Inc. Oversampling digital radio frequency transmitter
US7443719B2 (en) * 2006-02-23 2008-10-28 Hypres, Inc. Superconducting circuit for high-speed lookup table
US7680474B2 (en) * 2005-10-04 2010-03-16 Hypres Inc. Superconducting digital mixer
US8462889B2 (en) * 2005-10-04 2013-06-11 Hypres, Inc. Oversampling digital receiver for radio-frequency signals
US7362125B2 (en) 2006-06-14 2008-04-22 Hypres, Inc. Digital routing switch matrix for digitized radio-frequency signals
US7596326B2 (en) * 2005-10-27 2009-09-29 Emcore Corporation Distortion cancellation circuitry for optical receivers
US7180048B1 (en) * 2005-11-03 2007-02-20 Intersil Americas Inc. Slow tail compensation
US7853155B2 (en) * 2005-12-12 2010-12-14 Emcore Corporation Method for adjusting bias in optical transmitter with external modulator
US7761012B2 (en) 2006-01-12 2010-07-20 Nec Laboratories America, Inc. Optical communication system and method for generating dark return-to zero and DWDM optical MM-Wave generation for ROF downstream link using optical phase modulator and optical interleaver
US7486247B2 (en) 2006-02-13 2009-02-03 Optimer Photonics, Inc. Millimeter and sub-millimeter wave detection
US7277603B1 (en) * 2006-02-22 2007-10-02 Nortel Networks Limited Integrated optical waveform modulation
US7898464B1 (en) 2006-04-11 2011-03-01 Lockheed Martin Corporation System and method for transmitting signals via photonic excitation of a transmitter array
US7495560B2 (en) 2006-05-08 2009-02-24 Corning Cable Systems Llc Wireless picocellular RFID systems and methods
US7991013B2 (en) * 2006-06-14 2011-08-02 Hypres, Inc. Digital receiver for radio-frequency signals
US20070292136A1 (en) 2006-06-16 2007-12-20 Michael Sauer Transponder for a radio-over-fiber optical fiber cable
US7634198B2 (en) * 2006-06-21 2009-12-15 Emcore Corporation In-line distortion cancellation circuits for linearization of electronic and optical signals with phase and frequency adjustment
US7974534B2 (en) 2006-08-11 2011-07-05 Purdue Research Foundation Wideband microwave and millimeter wave filters using photonic spectral filtering
US7627250B2 (en) 2006-08-16 2009-12-01 Corning Cable Systems Llc Radio-over-fiber transponder with a dual-band patch antenna system
US7365663B2 (en) * 2006-08-24 2008-04-29 Hypres, Inc. Flux-quantizing superconducting analog to digital converter (ADC)
JP2010501892A (en) * 2006-08-24 2010-01-21 イーオースペース，インコーポレイテッド High dynamic range analog fiber optic link using tunable optical filter with phase modulation
US7787823B2 (en) 2006-09-15 2010-08-31 Corning Cable Systems Llc Radio-over-fiber (RoF) optical fiber cable system with transponder diversity and RoF wireless picocellular system using same
US7848654B2 (en) 2006-09-28 2010-12-07 Corning Cable Systems Llc Radio-over-fiber (RoF) wireless picocellular system with combined picocells
US8873585B2 (en) 2006-12-19 2014-10-28 Corning Optical Communications Wireless Ltd Distributed antenna system for MIMO technologies
US8111998B2 (en) 2007-02-06 2012-02-07 Corning Cable Systems Llc Transponder systems and methods for radio-over-fiber (RoF) wireless picocellular systems
WO2008118411A1 (en) 2007-03-23 2008-10-02 Massachusetts Institute Of Technology Filter based dpsk receiver
US7697847B2 (en) * 2007-04-02 2010-04-13 Finisar Corporation Dispersion compensator for frequency reshaped optical signals
US7421168B1 (en) 2007-07-02 2008-09-02 Northrop Grumman Systems Corporation Integrated optical channelizer
US20100054746A1 (en) 2007-07-24 2010-03-04 Eric Raymond Logan Multi-port accumulator for radio-over-fiber (RoF) wireless picocellular systems
US8175459B2 (en) 2007-10-12 2012-05-08 Corning Cable Systems Llc Hybrid wireless/wired RoF transponder and hybrid RoF communication system using same
US8644844B2 (en) 2007-12-20 2014-02-04 Corning Mobileaccess Ltd. Extending outdoor location based services and applications into enclosed areas
US8160455B2 (en) * 2008-01-22 2012-04-17 Finisar Corporation Method and apparatus for generating signals with increased dispersion tolerance using a directly modulated laser transmitter
US9246529B2 (en) 2008-01-25 2016-01-26 California Institute Of Technology Photonic RF down-converter based on optomechanical oscillation
US8027588B2 (en) 2008-02-05 2011-09-27 University Of Central Florida Research Foundation, Inc. Systems and methods for optical carrier recovery
US7701842B2 (en) * 2008-02-13 2010-04-20 Nortel Networks Limited Low conversion rate digital dispersion compensation
WO2009114738A2 (en) * 2008-03-12 2009-09-17 Hypres, Inc. Digital radio-frequency tranceiver system and method
US8103178B2 (en) * 2008-04-18 2012-01-24 The United States Of America As Represented By The Secretary Of The Navy Linearized phase modulated analog optical links
US8055235B1 (en) * 2008-05-02 2011-11-08 Hypres, Inc. System and method for digital interference cancellation
US8666253B2 (en) * 2008-05-13 2014-03-04 Lockheed Martin Corporation Radio frequency photonic transceiver
US8059969B1 (en) 2008-06-18 2011-11-15 Hrl Laboratories, Llc Enhanced linearity RF photonic link
US7657132B1 (en) 2008-06-18 2010-02-02 Hrl Laboratories, Llc Optoelectronic modulator and electric-field sensor with multiple optical-waveguide gratings
US8103175B1 (en) 2008-07-17 2012-01-24 Lockheed Martin Corporation Optical signal processing systems and methods for amplification and/or attenuation
US8188901B1 (en) * 2008-08-15 2012-05-29 Hypres, Inc. Superconductor analog to digital converter
US8030997B2 (en) * 2008-11-11 2011-10-04 Philip Brown Resource efficient adaptive digital pre-distortion system
US8693875B2 (en) * 2008-11-20 2014-04-08 Applied Communications Sciences Method and apparatus for optimized analog RF optical links
CN101771491A (en) * 2008-12-30 2010-07-07 华为技术有限公司 Method for polarization multiplexing and demultiplexing, device and system thereof
US8548330B2 (en) 2009-07-31 2013-10-01 Corning Cable Systems Llc Sectorization in distributed antenna systems, and related components and methods
US8275265B2 (en) 2010-02-15 2012-09-25 Corning Cable Systems Llc Dynamic cell bonding (DCB) for radio-over-fiber (RoF)-based networks and communication systems and related methods
DE102010018492B4 (en) * 2010-04-28 2011-12-08 Andrew Wireless Systems Gmbh Interface module for a unit of an antenna distribution system and antenna distribution system
US8787776B2 (en) * 2010-06-04 2014-07-22 The Governing Council Of The University Of Toronto Optical receiver with monolithically integrated photodetector
US8515285B2 (en) * 2011-07-25 2013-08-20 Harris Corporation RF communications device including an optical link and related devices and methods
US8971712B2 (en) * 2012-03-05 2015-03-03 Georgia Tech Research Corporation Carrier embedded optical radio-signal modulation of heterodyne optical carrier suppression
US9335406B2 (en) * 2012-07-23 2016-05-10 The Johns Hopkins University Photonically enabled RF transmitter/receiver
US9172471B2 (en) * 2013-03-15 2015-10-27 The United States Of America, As Represented By The Secretary Of The Navy System and method for suppression of even-order photodiode distortions

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6571110B1 (en) * 1995-08-09 2003-05-27 David O. Patton Cryoelectronic receiver front end for mobile radio systems
US5838474A (en) * 1995-09-08 1998-11-17 Siemens Aktiengesellschaft Process and circuit arrangement for transmitting received signals from an antenna to a base station of a radio system
US20040162042A1 (en) * 2002-12-03 2004-08-19 Ntt Docomo, Inc. High sensitivity radio receiver

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
"Proceeding of the SDR 02 Technical Conference and Product Exposition, 2002 SDR Forum", 2002, article O. MUKHANOV ET AL.: "Superconducor digital-RF transceiver components", XP008141899 *
"Proceeding of the SDR 04 Technical Conference and Product Exposition, 2004 SDR Forum", 2004, article JACK ROSA ET AL.: "Benefits of superconductor microelectronics for commercial wireless base station", XP008141912 *
DARREN K. ET AL.: "Super conductor Digital RF Development for Software Radio", IEEE COMMUNICATIONS MAGAZINE, vol. 39, no. ISS.2, February 2001 (2001-02-01), pages 174 - 179, XP008141908 *

Also Published As

Publication number Publication date
US8260143B2 (en) 2012-09-04
US20130004180A1 (en) 2013-01-03
US20090232507A1 (en) 2009-09-17
US20090232191A1 (en) 2009-09-17
US9548878B2 (en) 2017-01-17
KR20110002020A (en) 2011-01-06
US8260145B2 (en) 2012-09-04
US20120328301A1 (en) 2012-12-27
US10382132B2 (en) 2019-08-13
US20090232510A1 (en) 2009-09-17
US20150125155A1 (en) 2015-05-07
US9020362B2 (en) 2015-04-28
US8260144B2 (en) 2012-09-04
WO2009114738A2 (en) 2009-09-17
US20170134091A1 (en) 2017-05-11
EP2263332A2 (en) 2010-12-22
US8867931B2 (en) 2014-10-21

Similar Documents

Publication Publication Date Title
WO2009114738A3 (en) Digital radio-frequency tranceiver system and method
US10763952B2 (en) Systems and methods for a fronthaul network
US10305183B2 (en) Active antenna associated device and system, and transmitting and receiving calibration method
US8694034B2 (en) System and method for the distribution of radio-frequency signals
EP3843285A1 (en) Distributed antenna system architectures
EP3531565B1 (en) Tower top device and passive intermodulation cancellation method
WO2009151893A3 (en) Compression of baseband signals in base transceiver systems
CN102130697A (en) Receiver, transmitter and feedback device, transceiver and signal processing method
WO2005089517A3 (en) Method and apparatus for wirelessly coupling a source signal to a radio frequency receiver
KR102116539B1 (en) Remote radio head
CN102082752A (en) Digital predistortion processing method and equipment
WO2009093232A3 (en) Multi-mode wireless communication link
WO2007121173A3 (en) Systems and methods for analog transport of rf voice/data communications
US7190932B2 (en) Circuit arrangement for a predistorted feedback coupling from a transmitter to a receiver in a multi-mode mobile telephone
DK1756969T3 (en) Arrangement and method for antenna diversity
CN101488795B (en) Optical fiber digital transmission method applied on straight-forward station
EP2775681B1 (en) Method, device and base station system for transceiving and processing radio frequency signal
US20170222740A1 (en) Remote apparatus of distributed antenna system
CN102315880A (en) Light path transmission method and device
US10374640B2 (en) Combining radio frequency bands for increasing bandwidth in a wireless communication system
JP2004180220A (en) Radio station system
CN105634628B (en) Signal characteristic difference condition caused by TRX calibrator (-ter) units and TRX determines method
CN102089987B (en) Communication device, distortion compensation circuit, and distortion compensation method
CN201388209Y (en) Predistortion processing unit
CN101478812A (en) Digital predistortion apparatus suitable for TD-SCDMA time-division system

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09721141

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 20107022048

Country of ref document: KR

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 2009721141

Country of ref document: EP