Commscope Technologies LLC

Outdoor Wireless Networks LLC

Maple Acquisition LLC

Navin Srinivasan

Ariful Hannan

Khalid W Al-Mufti

Suryanarayana A Kalenahalli

Raina Rahman

Andrew E Beck

Mayowa Aregbesola

Olivani Subbukutty

Thomas Booker Gravely

Martin C Alles

Meihua Liang-Legrand

Techniques are provided for determining a channel at and/or a maximum transmit power level in which the requesting General Authorized Access (GAA) citizens broadband radio service device (CBSD) can transmit prior to the next to be executed coordinated periodic activities among spectrum access systems while diminishing co-channel interference between the requesting GAA CBSD and other GAA CBSD(s) in a neighborhood centered around the requesting GAA CBSD.

Systems and methods for allocating transmit power and optionally a channel to a radio requesting authorization to transmit in shared spectrum

Techniques for modelling a radio network in a geographic region utilizing shared spectra are disclosed. Population data is obtained for the geographic region. A number of radios per channel in the geographic region, N′, is determined. Candidate geographic location for radios in the geographic region are determined. For every channel in the shared spectra, at least one of a static dataset and a dynamic dataset is determined. At least one set of output data, that is a statistical characterization of the radio network, is generated using at least one of the static dataset and the dynamic dataset, to aid in design of the radio network.

Methods and systems for resource planning in a shared spectra

In one embodiment, a method is provided. The method comprises determining a free space path loss distance at a frequency of a transmitter; determining a morphology class for a geographic location of the transmitter; determining a scaling factor P corresponding to the determined morphology class; determining a circular analysis region based upon the scaling factor P; and generating a contour.

Method and system for generating a contour

Techniques for determining power levels of radios, including a time domain duplexing (TDD) system, in shared frequency spectrum is provided. A TDD radio, of the TDD system, in a neighborhood having a largest interference contribution in the frequency spectrum at the point. Transmit power levels are determined for (a) the selected TDD radio, (b) other radios in the neighborhood that are not part of the TDD system, and (c) at least one radio in the TDD system that is not the TDD radio having the largest interference contribution in the frequency spectrum. Thus, interference margin may be fairly allocated to radios in neighborhood(s) about protection points.

Method and system for determining transmission power of radios of a time division duplexing system

Techniques for planning locations of receiver systems for an environmental sensing capabilities (ESC) system are provided. An ESC system is used to detect activity of primary users in shared spectra. The techniques can be used to reduce dead zone area(s), created by the receiver systems, for radios of secondary systems using the shared frequency spectrum.

Methods and systems for environmental sensing capability planning in a shared spectra

In one embodiment, a method is provided. The method comprises defining propagation analysis points for radial line R; obtaining, from an external database, terrain elevation data for the radial line Rup to a maximum radial distance; determining the contour point for the radial line R; and upon determining the contour points for M radii, generating a protection zone perimeter.

Method and system for generating a protection zone

Techniques are provided for more accurately determining interference contribution at a point in a neighborhood of a time division duplexing (TDD) system operating in shared frequency spectrum. If at least one TDD radio, of a TDD system, is in the neighborhood, then determine a largest interference level, at the point in the shared frequency spectrum, by a TDD radio of the TDD system, where the TDD radio is in the region around the point. The largest interference level is selected as the aggregate interference contribution of the TDD system for interference analysis in the shared spectrum at the point.

Method and system for determining an interference contribution from a time division duplexing system

A computing device includes a processor and memory storing instructions that are executable to determine a median of a first mixture distribution. The instructions are also executable to determine a parent mean, a parent standard deviation, and boundaries for each of multiple segments in the first mixture distribution. The instructions are also executable to determine a segment mean and a segment second moment for each segment based on the parent mean, the parent standard deviation, and the boundaries for the respective segment. The instructions are also executable to determine a scaled probability for each segment. The instructions are also executable to determine a mixture mean and a mixture standard deviation for the first mixture distribution based on the segment mean, the segment second moment, and the scaled probability for each segment in the first mixture distribution.

Computing statistics for mixture distributions

Techniques for modelling a radio network in a geographic region utilizing shared spectra are disclosed. Population data is obtained for the geographic region. A number of radios per channel in the geographic region, N', is determined. Candidate geographic location for radios in the geographic region are determined. For every channel in the shared spectra, at least one of a static dataset and a dynamic dataset is determined. At least one set of output data, that is a statistical characterization of the radio network, is generated using at least one of the static dataset and the dynamic dataset, to aid in design of the radio network.

A method is provided. The method comprises: selecting a new protection point in a dynamic protection area; creating an initial sort list of radios; determining look angles; determining which look angle includes most radios in its main beam; determining a modified sort list and an initial move list for the determined look angle; determining a certain percentile of aggregate interference power spectral density at the new protection point for radios that are in a main beam for each of remaining look angles; sorting, by level of certain percentile of aggregate interference power spectral density, the remaining look angles; and generating a move list of radios.

Method and system for generating a move list

In one embodiment, a method is provided. The method comprises defining propagation analysis points for radial line Rp; obtaining, from an external database, terrain elevation data for the radial line Rup to a maximum radial distance; determining the contour point for the radial line R; and upon determining the contour points for M radii, generating a protection zone perimeter.

Techniques for determining a move list identifying radios&#x2014;of a shared access system including at least one time division duplexing system&#x2014;are provided. The radios transmissions in spectrum shared with an incumbent receiver cease upon the incumbent receiver entering a protection region.

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Fairfax Station, VA, United States of America

Navin Srinivasan