Xirrus, Inc.

Drew Bertagna

David B Rosen

Michael Richard Conley

Shaun Clem

Michael J De La Garrigue

Michael De La Garrigue

A wireless access point with a centralized media access controller MAC () that enables multiple radios () to share MAC resources and implement load balancing and frequency control.

Media access controller for use in a multi-sector access point array

A wireless network access device comprising a radio interface with a serial communication line, a switch, and M serial connections to M connectors for connecting up to M corresponding detachable radio modules. The radio interface forms up to M individually addressable radio communications paths. Each radio module includes a radio configured to communicate with client devices in a coverage area and a radio processor configured to manage at least one radio receiving buffer. The radio receiving buffers store receiver buffer identifiers to corresponding received data space. A processor manages communication between the client devices that communicate with the radio modules and a data network via the radio interface and a network interface when N&#x2266;M radio modules are connected to the radio interface. An assist engine is connected in the serial connection between the processor and the switch to manage allocation of receive buffer identifiers to the radio modules.

Assist engine for transmit and receive functions in a modular wireless network access device

A system and method for providing radar signal detection in a communications system. In an example method, a raw energy detect signal is received and analyzed to determine if the raw energy detect signal contains a valid radar pulse. A bit is stored in a bit sequence storage device such that the bit has a first value if a valid radar pulse was detected or a second value indicating that a valid pulse was not detected. A set of bits in the bit sequence storage device are accessed to determine if a plurality of waveform-indicating locations in the bit sequence storage device includes valid pulses. In another aspect of the invention, a system detects a radar signal in a communications device. The system includes a pulse detector to detect pulses in a raw energy signal having a pulse width within a predetermined minimum and maximum pulse width. The system includes a frequency detector having a bit sequence storage device to store the bits output by the pulse detector. The frequency detector detects whether the detected pulses conform to a waveform type by determining if the bits are stored in the bit sequence storage device in waveform-indicating locations.

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Thousand Oaks, CA, United States of America

Drew Bertagna