X Development LLC

Taara Connect, Inc.

Travis Lantz

Paul Csonka

Baris Ibrahim Erkmen

Bruce Moision

Devin Brinkley

A communication device is provided that estimates one or more disturbance values associated with one or more components of the communication device, and adjusts the communication device to change a received power of the output signal. The communication device includes a transmitter having a seed laser configured to provide an amount of bandwidth for an output signal, an Erbium-doped fiber amplifier (EDFA) configured to increase an amplitude of the output signal, and a single mode variable optical attenuator (SMVOA) configured to decrease the amplitude of the output signal.

Power adjustment of a communication link based on state disturbance estimations

The disclosure provides for a method for reacquiring a communication link between a first communication device and a second communication device. The method includes using one or more processors of the first communication device to receive historical data related to the first communication device and an environment surrounding the first communication device. The one or more processors are then used to determine one or more trends in the historical data related to fading of the communication link. Based on the one or more trends, the one or more processors are used to determine a starting time and an initial search direction for a search for the communication link. The one or more processors then execute the search at the starting time from the initial search direction.

Reacquiring communication link based on historical data

The technology employs a state-based power control loop (PCL) architecture to maintain tracking and communication signal-to-noise ratios at suitable levels for optimal tracking performance and data throughput in a free-space optical communication system. Power for a link is adjustable to stay within a functional range of receiving sensors in order to provide continuous service to users. This avoids oversaturation and possible damage to the equipment. The approach can include decreasing or increasing the power to counteract a surge or drop while maintaining a near constant received power at a remote communication device. The system may receive power adjustment feedback from another communication terminal and perform state-based power control according to the received feedback. This can include re-initializing and reacquiring a link with the other communication terminal automatically after loss of power, without human intervention. There may be a default state and discrete states including rain, fade, surge and unstable states.

Power control loop for stabilization of link power

The disclosure provides for a communication system that includes one or more sensors and one or more processors. The one or more processors are configured to receive, during a first timeframe, a first indication of an error rate of a communication link, a second indication of an amount of received power at a remote communication system, and one or more measurements related to the state of the communication system. The one or more processors are then configured to estimate a plurality of disturbance values to the communication system according to the one or more measurements and the second indication. Each disturbance value is associated with a set of components of the communication system. The one or more processors are configured to adjust a beam divergence of a beacon beam or a communication beam transmitted from the communication system based on the plurality of disturbance values and the first indication.

Beam divergence adjustment of a communication beam based on state disturbance estimations

The disclosure provides for a method for adjusting a component of a communication device. The method includes using the one or more processors of the communication device to receive one or more measurements related to the state of the communication device during a first timeframe, as well as an indication of an amount of received power at a remote communication device during the first timeframe. The one or more processors then estimate a plurality of disturbance values to the communication device for the first timeframe and a second timeframe smaller than the first timeframe according to the one or more measurements and the indication. Based on the plurality of disturbance values, the one or more processors adjust a given component of the communication device to cause a change in power of a signal to be transmitted from the communication device to the remote communication device.

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Dublin, CA, United States of America

Travis Lantz