Ruckus Wireless, Inc.

Arris Enterprises LLC

Augmented Radar Imaging, Inc.

Intel Corporation

Cogniac, Corp.

Ruckus IP Holdings LLC

Apris Enterprises LLC

Victor Shtrom

William S Kish

Bernard Baron

Darin Milton

John A Chanak

Peter George Khoury

Huayan Wang

Todd Gustavson

Janine Cheng

Bernard Barron

David Sheldon Stephenson

Chia Ching Ling

Allen Ka Lun Miu

Pratibha Gupta

Arogyaswami J Paulraj

Sandip C Patel

Steve A Martin

Chia-Ching Lin

Vinko Erceg

Peroor K Sebastian

Sanjay Kasturia

David J Gesbert

Daniel Baum

Steve Martin

Systems and methods for instituting redistribution of wireless clients to improve service, comprising via access point (AP), multiple APs acting in concert, and/or a central entity, in connection with a network, allowing a client to associate; deciding that an associated client should be redistributed based on a connection metric, wherein the decision is based on at least one of, a probability calculation, network metric and a threshold comparison; and via the AP, sending the associated client a trigger, wherein the trigger is at least one of, a redistribution request and a disconnect message.

Distribution of clients across a network

In order to maintain performance during wireless communication, a transmitting electronic device may selectively perform a remedial action based on a received power in a channel during time intervals between received packets (e.g., due to interference) and/or a metric associated with the measured received power. In particular, when the received power is less than a threshold value (e.g., when the interference is insufficient to stop transmission by the transmitting electronic device), the transmitting electronic device performs the remedial action based on the measured received power and/or the metric. For example, the remedial action may include: selecting a modulation technique; selecting the receiving electronic device; selecting an antenna pattern for the one or more antennas; reducing a transmit power; selecting a data rate; determining a cumulative distribution function; and/or estimating a channel capacity. Next, the transmitting electronic device transmits a packet in the channel to a receiving electronic device.

Remedial action based on inter-packet received power

Redistributing clients based on comparisons to historical connection metrics

During a measurement technique, an electronic device may receive first sensor information associated with a first field of view and a first timestamp, and second sensor information associated with a second field of view and a second timestamp. For example, the electronic device may perform a first measurement using a first sensor and performing a second, different type of measurement using a second sensor. Therefore, the first sensor information and the second sensor information may be associated with different types of sensors. Moreover, the first timestamp and the second timestamp may be concurrent or in close temporal proximity, and the first field of view and the second field of view may at least substantially overlap. Then, the electronic device may store the first sensor information and the second sensor information in memory. In some embodiments, the electronic device stores the first timestamp and the second timestamp in the memory.

Dual-measurement data structure for autonomous vehicles

An electronic device that selectively provides a recommendation is described. During operation, the electronic device may acquire, using one or more sensors, a measurement within an environment that is external to the electronic device, where the measurement provides information associated with a person located in a driver's position or seat in a vehicle, and the measurement includes a non-contact measurement. Then, the electronic device may assess situational awareness of the person based at least in part on the measurement. Moreover, the electronic device may receive a request associated with a partial or fully autonomous vehicle application to transition to manual control of the vehicle. In response to the request, the electronic device may selectively provide the recommendation to the partial or fully autonomous vehicle application to transition to manual control of the vehicle based at least in part on the situational awareness.

Selective control transition based on situational awareness

An electronic device that selectively performs a preventive action is described. During operation, the electronic device may acquire, using one or more sensors, a measurement in an environment that is external to the electronic device, where the measurement provides information associated with an object, and the measurement is a non-contact measurement. Then, the electronic device may detect the object based at least in part on the measurement. Moreover, the electronic device may estimate an intent of the object based at least in part on the measurement. Next, when the estimated intent is associated with a type of adverse event, the electronic device may perform the preventive action prior to an occurrence of the type of adverse event, where the preventive action reduces a probability of the occurrence of the type of adverse event or an amount of financial damage associated with the occurrence of the type of adverse event.

Preventive action based on estimated intent

Remedial action based on inter-packet receive power

An identification device that provides identification information is described. This identification device includes a set of radar reflectors that reflect radar signals having a fundamental wavelength. The set of radar reflectors may be arranged in a pattern corresponding to the identification information. For example, the set of radar reflectors may be passive and retrodirective, where a given radar reflector reflects a radar signal back along its prior direction of propagation. Moreover, the pattern may include regions that reflect the radar signals and second regions that do not reflect or scatter the radar signals. During operation, the identification device may receive the radar signals, and then may selectively reflecting the radar signals using the set of radar reflectors to provide the identification information.

Passive radar identification device

A circuit board in an electronic device includes a first set of transmit antennas and a first set of receive antennas arranged along an azimuth direction, and a second set of transmit antennas and a second set of receive antennas arranged along a direction that includes components in the azimuth direction and an elevation direction. Moreover, separations between adjacent transmit antennas in the first or second set of transmit antennas along the azimuth direction may be greater than one half of the fundamental wavelength. Furthermore, separations between adjacent receive antennas in the first or second set of receive antennas along the azimuth direction may equal one half of the fundamental wavelength. Additionally, adjacent antennas in the second set of transmit antennas and the second set of receive antennas may be partially offset from each other and partially overlap with each other along the elevation direction.

Virtual radar array having reduced size

Pattern shaping elements shape a radiation pattern generated by one or more antennas. A MIMO antenna system generates an omnidirectional radiation pattern. One or more pattern shaping elements may include metal objects which act as directors or reflectors to shape the radiation pattern. The shaping may be controlled by selectively coupling the pattern shaping elements to a ground plane, thus making them appear transparent to the radiation pattern. The pattern shaping elements may be amorphous, have varying shape, and may be symmetrical or asymmetrical. Different configurations of selected pattern shaping elements may provide different shapes for a radiation pattern.

Radio frequency emission pattern shaping

During a location technique, a sensor module in a vehicle, which has non-retractable wheels in contact with a driving surface, determines a location of the vehicle. In particular, the sensor module is positioned on or in a direction of a side-facing surface of the vehicle. Moreover, during operation, the sensor module may transmit radar signals approximately perpendicular to a direction of motion of the vehicle. Then, the sensor module may receive reflected radar signals. Furthermore, the sensor module may analyze a time sequence of the reflected radar signals. Next, the sensor module may determine the location of the vehicle based at least in part on the analyzed time sequence of reflected radar signals.

Vehicle location determination using synthetic aperture radar

During wireless communication with a multi-user multiple-input multiple-output (MIMO) group, a transmitting device may exclude a receiving device from a subset of the multi-user MIMO group to which it communicates data. In particular, based on responses from receiving devices to sounding packets with beamforming information for the receiving devices, the transmitting device calculates beam-pattern settings for a set of antennas so that, when communicating with the subset, receiving devices in the subset are located on beams within beam patterns formed by the set of antennas while a remainder of the receiving devices (including the receiving device) are located at exclusion zones in the beam patterns. Moreover, a beam pattern for a given receiving device in the subset provides a beam at a location of the given receiving device and provides exclusion zones at locations of the other receiving devices in the multi-user MIMO group.

Beamforming for a multi-user MIMO group

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Los Altos, CA, United States of America

Victor Shtrom