WO2018126195A1 - Système sur puce pour transmission de données résistante au bruit à faible vitesse - Google Patents

Système sur puce pour transmission de données résistante au bruit à faible vitesse Download PDF

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Publication number
WO2018126195A1
WO2018126195A1 PCT/US2017/069057 US2017069057W WO2018126195A1 WO 2018126195 A1 WO2018126195 A1 WO 2018126195A1 US 2017069057 W US2017069057 W US 2017069057W WO 2018126195 A1 WO2018126195 A1 WO 2018126195A1
Authority
WO
WIPO (PCT)
Prior art keywords
chip
modules
narrowband signals
carrier frequency
processor core
Prior art date
Application number
PCT/US2017/069057
Other languages
English (en)
Inventor
Andrey Orlov
Vasiliy ANISIMOV
Alexey DANILOV
Andrey PUZANOV
Sergey OMELCHENKO
Andrei BAKUMENKO
Danylo BATURA
Original Assignee
Waviot Integrated Systems, Llc
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 Waviot Integrated Systems, Llc filed Critical Waviot Integrated Systems, Llc
Publication of WO2018126195A1 publication Critical patent/WO2018126195A1/fr

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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
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2666—Acquisition of further OFDM parameters, e.g. bandwidth, subcarrier spacing, or guard interval length
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • 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
    • H04L27/2601—Multicarrier modulation systems
    • 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
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2657—Carrier synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/0035—Synchronisation arrangements detecting errors in frequency or phase
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • Receiver must receive many messages simultaneously and receive messages with random carrier frequency offset (CFO) , even when CFO is greater than the signal bandwidth.
  • System-on-chip must include both the transmitter, receiver and dedicated resources to fulfill user tasks .
  • Described is a system-on-chip comprising a hardware digital baseband modulator and demodulator, of at least two processor cores, of optional radio frequency frontend and optional signal parameters estimation modules.
  • the system-on-chip architecture includes transceiver that can receive signals with large carrier offsets so the embodiment can receive narrowband signals in Local Power Area Wide Area Network (LPWAN) .
  • LPWAN Local Power Area Wide Area Network
  • the system-on-chip includes error correction code coder/decoder modules, or other means of
  • receiver module analyzes the whole band used for transmission including side guard intervals to compensate CFO.
  • the exemplary embodiment maybe further understood with reference to the following description.
  • the exemplary embodiment describes a system-on-chip whose architecture enhances wireless data transmission capacities such as resistance to noise and interference, resistance to carrier frequency offset including cases when CFO is greater than signal bandwidth, high power efficiency, high spectral efficiency, ability to receive and decode many simultaneous messages.
  • An exemplary embodiment is a system-on-chip comprising digital DBPSK/DQPSK modulator and demodulator which can
  • system-on-chip also contains RF analog front-end and/or signal parameters estimation modules. Also, other modules might be present, for example additional digital signal processing modules.
  • analog transceiver and at least, two processor cores.
  • This transceiver can receive signals with large carrier offsets relative to signal bandwidth, so the system-on-chip is able to receive narrowband signals in LPWAN systems.
  • Using narrowband signals is one of simplest ways to improve efficiency and reliability of transmission, but it is limited by carrier frequency uncertainty resulting in carrier frequency offset in receiver. In most systems, carrier frequency must be relatively low compared to signal bandwidth.
  • transceivers available on the market today, most notably in the LPWAN market, such as Axsem ax8052, semtech sxl276, Microchip ATA8520 (SigFox) , etc.
  • transceivers are usually not able to receiver narrowband messages with relatively large carrier frequency offsets.
  • Some of transceivers like SemTech, utilize very large bands to transmit data using some sorts of spread spectrum modulation.
  • Other transceivers use narrowband messaging for transmitting data, but require wider bands for receiving and/or some sorts of sophisticated carrier frequency tuning on
  • processor cores In addition to demodulator, processor cores, signal estimation modules, possible RF analog modules, the embodiment can be modified to add other hardware modules such as additional digital signal modules and more processor cores.
  • the embodiment includes hardware error correction code coder/decoder modules, or other means of providing error
  • the system-on-chip includes hardware digital signal processing modules to provide well-known narrowband
  • DBPSK/DQPSK modulation/demodulation
  • the receiver module analyzes the whole band used for transmission including side guard intervals to compensate CFO. Fourier-based analysis might be used, and to increase its frequency resolution, additional frequency shifts might be applied to time domain data before conversion to frequency domain .
  • System-on-chip includes hardware cores for transmission and receiving of narrowband signals as well as hardware FEC encoder and decoder thereby improving power-efficiency and allowing to dedicate one processor core for user tasks. Also, due to simultaneous multi-channel decoding capability, said system-on-chip can function as a small base-station, also having some computing power in dedicated processor core.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

Le système sur puce comprend des coeurs matériels pour la transmission et la réception de signaux à bande étroite ainsi qu'un codeur de correction d'erreur sans circuit de retour (FEC) matériel, un décodeur améliorant l'efficacité de puissance et permettant de consacrer un coeur de processeur pour des tâches d'utilisateur. En outre, du fait d'une capacité de décodage multicanal simultanée, ledit système sur puce peut fonctionner comme une petite station de base, ayant également une certaine puissance de calcul dans un coeur de processeur dédié.
PCT/US2017/069057 2016-12-30 2017-12-29 Système sur puce pour transmission de données résistante au bruit à faible vitesse WO2018126195A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201662440884P 2016-12-30 2016-12-30
US62/440,884 2016-12-30
US201715858751A 2017-12-29 2017-12-29
US15/858,751 2017-12-29

Publications (1)

Publication Number Publication Date
WO2018126195A1 true WO2018126195A1 (fr) 2018-07-05

Family

ID=62710749

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2017/069057 WO2018126195A1 (fr) 2016-12-30 2017-12-29 Système sur puce pour transmission de données résistante au bruit à faible vitesse

Country Status (1)

Country Link
WO (1) WO2018126195A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5668837A (en) * 1993-10-14 1997-09-16 Ericsson Inc. Dual-mode radio receiver for receiving narrowband and wideband signals
US5960040A (en) * 1996-12-05 1999-09-28 Raytheon Company Communication signal processors and methods
US5974098A (en) * 1994-09-12 1999-10-26 Nec Corporation Received signal detector for digital demodulator
US20040096021A1 (en) * 2002-11-14 2004-05-20 Unb Technologies, Inc. Communications methods for narrow band demodulation
US20060285607A1 (en) * 2005-06-16 2006-12-21 The Boeing Company High availability narrowband channel for bandwidth efficient modulation applications
US20120195184A1 (en) * 1994-09-26 2012-08-02 Htc Corporation Systems and methods for orthogonal frequency divisional multiplexing

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5668837A (en) * 1993-10-14 1997-09-16 Ericsson Inc. Dual-mode radio receiver for receiving narrowband and wideband signals
US5974098A (en) * 1994-09-12 1999-10-26 Nec Corporation Received signal detector for digital demodulator
US20120195184A1 (en) * 1994-09-26 2012-08-02 Htc Corporation Systems and methods for orthogonal frequency divisional multiplexing
US5960040A (en) * 1996-12-05 1999-09-28 Raytheon Company Communication signal processors and methods
US20040096021A1 (en) * 2002-11-14 2004-05-20 Unb Technologies, Inc. Communications methods for narrow band demodulation
US20060285607A1 (en) * 2005-06-16 2006-12-21 The Boeing Company High availability narrowband channel for bandwidth efficient modulation applications

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