Cisco Technology, Inc.

David Stiff

David Stuart Kloper

Douglas Chan

Joshua Broch

David Hunt

Jacob E Woodhams

Sujit Ghosh

Techniques are provided to adaptively adjust a clear channel assessment threshold for use when a wireless device is to transmit in a wireless network that operates on a channel in a radio frequency band. A first wireless device, configured to wirelessly communicate with one or more second wireless device in the wireless network, receives energy on the channel in the frequency band, analyzes the received energy to detect interference on the channel and determines a type of interference detected in the received energy. The clear channel assessment threshold is adjusted by an amount depending on the type of interference detected.

Mitigating effects of identified interference with adaptive CCA threshold

A method, an apparatus, a system, and logic encoded in one or more computer-readable tangible medium to carry out a method. The method includes maintaining the state of clients of an access point controlled by a controller in the controller of the access point, including multicast group information, and updating the access point with multicast group identification for the clients, such that the controller in combination with the access point can forward packets, and such that multicast group information for a roaming client of the access point is maintained.

CAPWAP/LWAPP multicast flood control for roaming clients

Growing community of inventors

Los Altos, CA, United States of America

David Stiff