Federated Wireless, Inc.

Texas Instruments Corporation

Octoscope Inc.

Radiospire Networks, Inc.

Samuel Jay MacMullan

Deepak Das

Pirouz Zarrinkhat

Kurt Schaubach

Osama Tarraf

Sepehr Mehrabanzad

James Ni

Michael Oliver Ghorbanzadeh

Masoud Olfat

Tandhoni S Rao

Creighton Eldridge

Peter Harbour

Triveni N Upadhyay

Stuart C Schwartz

Rohan Grover

Alexander Flaig

Jeff Winston

Etty Lee

H Vincent Poor

Oguz Tanrikulu

Fanny Mlinarsky

Steven Fastert

Harold Vincent Poor

John Cangeme

Louis R Brothers, Jr

Pirouz Zarrinakhat

Frank C Livingston

Arnon A Friedmann

Methods are provided for managing frequency channels in a shared spectrum available to a radio local access network (RLAN) access point (AP) in a wireless network. The methods may comprise receiving a request for channel availability from the RLAN AP to access the shared spectrum, computing, based on a plurality of parameters associated with the RLAN AP, an RLAN service area (RSA) associated with the RLAN AP, retrieving one or more incumbent protection contours (IPCs) associated with one or more incumbent users in the wireless network, identifying an IPC, among the one or more retrieved IPCs, that overlaps with the RSA associated with the RLAN AP, determining, based on the identified IPC, available frequency information corresponding to the received request for channel availability, and transmitting, to the RLAN AP, a channel availability response comprising the available frequency information.

Systems and methods for determining channel availability by an automated frequency coordination system

Cloud-based systems and methods are provided for assigning shared spectrum resources to secondary users. The methods may comprise receiving, by a central block entity, a request for channel availability from a secondary user to access a shared spectrum in a wireless network, authenticating the secondary user, validating the secondary user, routing the request for channel availability to a managing block entity, receiving available frequency information from the managing block entity, assigning a frequency and an effective isotropic radiated power (EIRP) to the secondary user based on the available frequency information from the managing block entity, and transmitting, to the secondary user, a channel availability response based on the assigned EIRP. The managing block entity may be configured to determine available frequency information based on one or more parameters associated with the secondary user. The channel availability response may comprise a frequency on which the secondary user can transmit.

Systems and methods for scalable, reliable, and distributed spectrum access system processing

Improved techniques are provided for managing and optimizing network resources and spectrum access in a Self-Organizing Network (SON). A Spectrum Access System (SAS) collects network-related information from a plurality of network sources, such as base stations and user equipments (UEs), to perform optimization and organization across different networks, network operators, and network technologies. In some embodiments, the SAS may use the network information and a Radio Environment Map to optimize TDD synchronization in the SON. In other embodiments, the SAS may use the network information to populate a global Neighbor Relation Table. The SAS also may use the network information to optimize one or more network parameters, such as Physical Cell Identities or Root Sequence Indexes, antenna parameters, transmit power levels, handover thresholds, channel assignments, and so on, for use in the SON. Advantageously, the SAS's optimized network parameters may be used to improve network performance, reduce signal interference, and adjust to network failures in the SON.

Spectrum access optimization for self organizing networks

Improved techniques are provided for managing frequency channels in a shared spectrum available to a radio local access network device (RLAN) in a wireless network. A shared spectrum system may perform operations including retrieving a plurality of parameters for one or more high-priority users in the wireless network; computing, based on the retrieved parameters, a plurality of interference-to-noise power ratio (I/N) contour values; storing the plurality of I/N contour values in a database; receiving, from the RLAN in the wireless network, a request for channel availability, wherein the received request includes at least a first value; extracting, based on the first value in the request for channel availability, I/N contour values from the database exceeding a threshold value; determining, based on the extracted I/N contour values, available frequency information corresponding to the received request for channel availability; and transmitting a channel availability response comprising the available frequency information.

Automated frequency coordination for shared spectrum wireless systems

Techniques are provided for managing frequency access in a shared spectrum available to a radio local access network (RLAN) in a wireless network. A shared spectrum system may perform operations including retrieving a plurality of parameters for one or more high-priority users in the wireless network; computing, based on the retrieved parameters, a plurality of interference-to-noise power ratio (I/N) contours; storing the plurality of I/N contours in a database; receiving, from an RLAN device in the wireless network, a request for spectrum availability, wherein the received request includes at least a first value; extracting, based on the first value in the request for spectrum availability, an I/N contour from the database matching RLAN parameters; determining, based on the extracted I/N contour, available frequency information corresponding to the received request for spectrum availability; and transmitting, to the RLAN device, the available frequency information.

Embodiments assign shared spectrum resources to access points. Embodiments group the access points into coexistence groups of access points, and generate a vertex graph including vertices that each represent one of the coexistence groups, where an edge connecting a pair of vertices in the vertex graph represents an overlap between coverage contours of a pair of coexistence groups represented by the pair of vertices, and the edge is assigned a weight that is proportional to the overlap as compared to other overlaps between coverage contours of other pairs of coexistence groups. Embodiments generate at least one vertex-colored graph by assigning a color to each vertex in the vertex graph, group the coexistence groups into groups of coexistence groups based on their corresponding assigned colors in the at least one vertex-colored graph, and map shared spectrum transmit frequencies to the groups of coexistence groups.

Spectrum sharing between primary users and coexistence groups of secondary users

A method and system is provided for enabling spectrum sensing capability in a network having at least one primary user and a plurality of secondary users configured to communicate using a shared spectrum. The methods and systems include receiving values from sensors corresponding to received signal strength from a primary user in one or more frequencies of the shared spectrum. The values are used to interpolate at least one additional value between the sensors. A detection threshold is determined for sensing a signal transmitted from the primary user based on an acceptable amount of interference. The primary user is then determined to be transmitting in the one or more frequencies of the shared spectrum if any of the values received from the plurality of sensors or the at least one additional value interpolated along the path exceeds the detection threshold.

Method and system for providing spectrum sensing capability in a shared network

Growing community of inventors

Carlisle, MA, United States of America

Samuel Jay MacMullan