Smartsky Networks, LLC

Nextel Communications Inc.

Clearwire IP Holdings L.l.c.

Douglas A Hyslop

Andrew P Caplan

Ryan Mitchell Stone

Gerard James Hayes

Masoud Olfat

Rajesh Gangadhar

Alireza Afrashteh

Koichiro Takamizawa

David Aaron Claassen

Mike Dodson

Elbert Stanford Eskridge, Jr

Walter Fred Rausch

Udit Thakore

Ivy Yvonne Kelly

David A Maples

Barry John West

Matthew Starzec

Chris Helzer

Salman Yusuf

Michael Youngil Ha

A base station within a network for providing ATG wireless communication in various cells may include an antenna array defining a plurality of wedge shaped sectors having respective widths defined in azimuth, and a beamforming control module. The beamforming control module may be configured to communicate with the antenna array via a first RF chain to perform beamforming defining traffic channel beams having a first width, and a second RF chain to perform beamforming defining control channel beams having a second width. The second width may be greater than the first width.

Air to ground communication system with separate control and traffic channels

A global positioning system (GPS) receiver may include an antenna configured to receive GPS signals from GPS satellites, a radio frequency (RF) front end configured to pre-process signals received by the antenna, a demodulator/converter configured to perform demodulation and analog-to-digital conversion of output signals received from the RF front end, a clock configured to provide a consistent clock signal, and a digital signal processor configured to receive the clock signal and make time and code measurements associated with determining a location of the GPS receiver based on the signals received by the antenna. The GPS receiver may be configured to eliminate reflected or indirect signals from the time and code measurements.

Optimized position information assisted beamforming

Aspects described herein relate to a network for providing air-to-ground wireless communication in various cells. The network includes a first base station array, each base station of which includes a respective first antenna array defining a directional radiation pattern that is oriented in a first direction, wherein each base station of the first base station array is disposed spaced apart from another base station of the first base station array along the first direction by a first distance. The network also includes a similar second base station array where the second base station array extends substantially parallel to the first base station array and is spaced apart from the first base station array by a second distance to form continuous and at least partially overlapping cell coverage areas between respective base stations of the first and second base station arrays.

Wedge shaped cells in a wireless communication system

A network analytics control module may include processing circuitry configured to receive three dimensional location information and corresponding signal quality information for a particular asset in an air-to-ground (ATG) network, make a service quality inference for the particular asset based at least in part on the received information, and provide an instruction for a network control activity based on the service quality inference.

Passive collection of air-to-ground network parameters for network planning and control

A beamforming control module including processing circuitry may be configured to receive fixed position information indicative of a fixed geographic location of a base station, receive dynamic position information indicative of a three dimensional position of at least one mobile communication station, determine an expected relative position of a first network node relative to a second network node based on the fixed position information and the dynamic position information, and provide instructions to direct formation of a steerable beam from an antenna array of the second network node based on the expected relative position.

Position information assisted beamforming

A network for providing air-to-ground (ATG) wireless communication in various cells may include an in-flight aircraft including an antenna assembly, a plurality of ATG base stations, a plurality of terrestrial base stations. Each of the ATG base stations defines a corresponding radiation pattern, and the ATG base stations are spaced apart from each other to define at least partially overlapping coverage areas to communicate with the antenna assembly in an ATG communication layer defined between a first altitude and a second altitude. The terrestrial base stations are configured to communicate primarily in a ground communication layer below the first altitude. The terrestrial base stations and the ATG base stations are each configured to communicate using the same radio frequency (RF) spectrum in the ground communication layer and ATG communication layer, respectively.

Architecture for simultaneous spectrum usage by air-to-ground and terrestrial networks

Aspects described herein relate to a base station for providing air-to-ground wireless communication over various altitudes. The base station includes a first antenna array comprising one or more antennas configured to form a first cell coverage area extending substantially from a horizon up to a first elevation angle away from the first antenna array to a predetermined distance from the first antenna array. The base station further includes a second antenna array configured at an uptilt elevation angle to form a second cell coverage area extending at least from the first elevation angle to a second elevation away from the second antenna array, wherein the first cell coverage area and the second cell coverage area are concentric to define the ATG cell at least to the predetermined distance and up to a predetermined elevation.

Concentric cells in a wireless communication system

A network for providing air-to-ground (ATG) wireless communication in various cells may include a receiver station disposed on an aircraft in flight, a plurality of base stations, each base station defining a corresponding radiation pattern such that the base stations are spaced apart from each other to define at least partially overlapping coverage areas, and a control module in communication with at least one of the base stations. The control module may be configured to receive information indicative of an altitude of the aircraft and select a frequency for communication between the at least one of the base stations and the receiver station based on the altitude.

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Fairfax Station, VA, United States of America

Douglas A Hyslop