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Cognitive Radio

Cognitive Radio-related patent applications - as published by the U.S. Patent and Trademark Office (USPTO).


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Methods and systems for cognitive radio spectrum monitoring
Valorbec Societe En Commandite
May 04, 2017 - N°20170126445

Cognitive radios by dynamically detecting available channels and changing their transmission or reception parameters allow increased concurrent wireless communications within a given spectrum band. It would be beneficial for such cognitive radios to exploit orthogonal frequency division multiplexing (ofdm) and accordingly establishing a spectrum monitoring technique suitable for ofdm-based cognitive radios an essential element for this. The inventors have established ...
Cognitive radio method and apparatus for achieving ad hoc interference multiple access wireless communication
Massachusetts Institute Of Technology
April 27, 2017 - N°20170118762

In a radio network having a plurality of first users on channel (fuocs) and one or more second users on channel (suocs), a method and apparatus for a suoc to select a channel to co-occupy based upon a “selfish” goal of achieving a desired suoc rate and an “altruistic” goal of causing ...
Systems and methods for detecting unused communication spectrum
The Board Of Trustees Of The University Of Alabama
March 30, 2017 - N°20170093603

Systems and methods for cognitive radio spectrum sensing of a signal are disclosed herein. On exemplary method comprises applying a pre-defined cyclostationary feature to detect the presence of the signal; detecting the signal; detecting a spectrum associated with the signal; sampling randomly the detected signal from its cyclic frequency domain; and applying a compressive sensing algorithm to classify the signal ...
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Method and device for configuring cognitive radio system spectrum resources
Zte Corporation
January 05, 2017 - N°20170006475

A method and device for configuring cognitive radio system spectrum resources, relates to the field of wireless communication and solves the problem that the existing resource configuration mode influences system stability. The method includes: receiving, by a reconfiguration management node, idle spectrum resource request information transmitted by secondary user equipment, wherein the idle spectrum resource request information indicates a demand ...
Wideband antenna star array
Smart Antenna Systems, Inc.
December 08, 2016 - N°20160359237

This invention provides a wideband switchable, reconfigurable and steerable antenna star array capable of providing full 360 degree coverage and selectable narrower beam coverage with high isolation across the full cellular and bandwidth. This invention enables the small cell to have increased data throughput capacity because of the availability the wider band through a single aperture. In addition this invention increases ...
Cognitive radio system, resource allocation apparatus thereof and method therefor
Sony Corporation
December 01, 2016 - N°20160352547

Disclosed is a cognitive radio system, resource allocation apparatus thereof and method therefor. A resource allocation apparatus comprises: a transmission opportunity assessment device which is used to assess availabilities of transmission opportunities in radio resources of a primary communication system; a vector production device which is used to set a transmission opportunity selection vector for each secondary user in the ...
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Electronic device, method and computer-readable medium for sensing spectrum usage in a cognitive radio communication ...
Tsinghua University
November 17, 2016 - N°20160337882

The disclosure provides an electronic device, a method and computer-readable medium. The electronic device includes a circuitry. The circuitry is configured to receive a radio communication signal for another device. The circuitry is also configured to determine, based on the radio communication signal, one or more features that can reflect the difference between uplink transmission mode and downlink transmission mode. ...
Method and apparatus for transmitting channel information in cognitive radio network and method and apparatus ...
Snu R&db Foundation
September 15, 2016 - N°20160269155

A method and apparatus for transmitting channel information used by a station form among tv white space channels, and a method and apparatus for performing channel switching are disclosed. A method for transmitting information of a channel used by a station from among tv white space channels includes determining one or more channels used by the station from among channels ...
Method and procedure for communication between databases or spectrum management functions
Interdigital Patent Holdings, Inc.
September 08, 2016 - N°20160262024

Methods and apparatuses are described herein for providing a victim database discovery procedure. The victim database discovery procedure may be guided by an initial list of potential victim databases that may be defined by physical properties such as the geographic or regional relationships of the areas that may be protected by each database. Exchange procedures are disclosed in which incumbent ...
Cognitive radio antenna assembly
King Fahd University Of Petroleum And Minerals
September 08, 2016 - N°20160261050

The cognitive radio antenna assembly includes two boards, a main board that has an ultra-wideband antenna (uwb) and also serves as a ground plane for the reconfigurable antenna, and an elevated mimo board having two planar inverted-f antennas (pifas) that are reconfigurable to selectively operate on different frequency bands. Each pifa has a radiating patch having a slot bridged by ...
Method and apparatus for wideband spectrum sensing
King Fahd University Of Petroleum And Minerals
May 26, 2016 - N°20160150415

Examples of wideband spectrum sensing techniques for cognitive radio are provided. The techniques permit undersampling (e. G., sub-nyquist sampling) the spectrum band, which permits use of more cost effective electronic components (e. G., lower frequency analog-to-digital converters (adc)). The techniques permit determination of whether there are any (or sufficient) sub-channels that exist in the band to use for transmission, so ...
Enterprise cognitive radio integrated with laser communications
At&t Intellectual Property Ii, L.p.
May 19, 2016 - N°20160142930

A wireless data access system is provided to ameliorate bursty traffic occurring in a radio communications link such as a wifi, wimax, 3g or cellular telephone link to a wireless network access device. A data traffic event is detected relating to traffic in the link. The traffic event may be a traffic burst exceeding a predetermined threshold. Based on detecting ...
Coordination of silent periods for dynamic spectrum manager (dsm)
Interdigital Patent Holdings, Inc.
April 28, 2016 - N°20160119899

A method for use in a dynamic spectrum manager (dsm) for coordinating asynchronous silent periods in a network, the method comprising detecting a primary user in the network, transmitting a silent period start control message to one or more cognitive radio (cr) nodes in the network, wherein the message indicates the start and duration of a silent period and initiates ...
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Authentication and authorization of cognitive radio devices
Koninklijke Philips N.v.
March 24, 2016 - N°20160088479

A method of authentication and authorization of cognitive radio devices comprises generating a registration request message; sending the registration request to a spectrum manager; receiving a registration response message from the spectrum manager; generating an authorization request message; upon receiving of an authorization response message, generating a verification response message; and sending the verification response message to the cognitive radio ...
A method for improving spectrum sensing and efficiency in cognitive wireless systems
The Arizona Board Of Regents On Behalf Of The University Of Arizona
March 10, 2016 - N°20160073268

Systems and methods for adaptive method exploits self-interference suppression (sis) and full-duplex (fd) capabilities in cognitive radio and dynamic spectrum access (dsa) systems to enable simultaneous transmission-and-sensing (ts) or transmission-and-reception (tr) over the same frequency channel in a single operation. The adaptive methods enable secondary users or units (sus) to switch between different modes of operation, taking into account the ...
Communication system
Nec Corporation
February 11, 2016 - N°20160043815

There is a cognitive radio system provided including a master node (3) and a plurality of mobile terminals (5a˜5e). The master node (3) includes receiving unit for receiving, from a plurality of sensor nodes, detection information indicating whether or not the sensor node has sensed a primary user transmission; obtaining unit (342) for obtaining, for each sensor node, a measure ...
Collaborative spectrum sensing in cognitive radio network
Harman International Industries, Inc.
January 07, 2016 - N°20160007208

A method and system for collaborative spectrum sensing in a cognitive radio network is provided. The method may include: receiving through a cognitive radio network a plurality of sensing results of availability of a channel, where the plurality of sensing results are generated by a corresponding number of vehicles within the cognitive radio network, respectively, where broadcasting of the plurality ...
Cognitive radio method and apparatus for achieving ad hoc interference multiple access wireless communication
Massachusetts Institute Of Technology
December 17, 2015 - N°20150365956

In a radio network having a plurality of first users on channel (fuocs) and one or more second users on channel (suocs), a method and apparatus for a suoc to select a channel to co-occupy based in part upon the expected impact on the fuoc. The fuoc collects signal parameters associated with the fuoc, such as actual rate, bandwidth, received ...
System and method for managing wireless frequency usage
Board Of Trustees Of The University Of Alabama
December 17, 2015 - N°20150365871

Systems and methods for managing spectrum handoff with multimedia transmissions over cognitive radio networks are disclosed. The methods may include, for example, determining when a primary user is inactive on the one or more frequencies. The methods may also include assigning a secondary user to the one or more frequencies while the primary user is inactive and detecting return by ...
Wireless communication device and sensing method
Toyota Infotechnology Center Co., Ltd.
October 29, 2015 - N°20150311925

A wireless communication device which includes: a sensing antenna for sensing communication by a primary user; a first transmission antenna; a second transmission antenna; first transmitting unit that generates a transmission signal to be transmitted from the first transmission antenna; second transmitting unit that generates a transmission signal to be transmitted from the second transmission antenna and that cancels, in ...
Systems and methods for a cognitive radio having adaptable characteristics
Toyota Infotechnology Center Co., Ltd.
October 15, 2015 - N°20150296382

Systems and methods for configuring a network of radios for dynamic spectrum access are described. A network radio can include hardware and/or software modules for detecting a radio environment and negotiating common communications channels with a plurality of other radios in the network. Network radio behavior can be defined by a plurality of predefined policies which are used in ...
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