Abstract: The present disclosure discloses a method and network device for adaptive management of wireless clients based on clients' radio behaviors and capabilities. Specifically, a disclosed network device can dynamically select a location tracking mechanism based on a probing characteristic of a client device. The disclosed network device can also dynamically selects a communication mechanism based on a power saving characteristics of a client device. Moreover, the disclosed network device can determine whether to select a new access point for a client device based on roaming characteristics of the client device. The adaptive management of client devices can be performed on a group of client devices with similar radio behaviors and/or capabilities on a per-radio rather than per-BSSID (basic service set identifier) basis.

Abstract: Disclosed is a system, apparatus, and method for RF management using network-device-to-network-device channel estimation and standard beamforming techniques. The exemplary method comprises: obtaining a first information corresponding to a first device that is a target device for transmitting at least one of a plurality of wireless signals by a network device; obtaining a second information corresponding to a second device that is to be avoided by propagation of any wireless signals transmitted by the network device; computing a radiation pattern for transmitting the plurality of wireless signals based at least on the first information associated with the first device and the second information associated with the second device; and transmitting the plurality of wireless signals based on the radiation pattern.

Abstract: According to one embodiment of the disclosure, a non-transitory computer-readable medium comprising instructions which, when executed by one or more hardware processors, causes performance of operations. One of these operations comprises transmitting, from a first device to a second device, a first plurality of frames using a first polarization configuration for a first antenna corresponding to the first device. Based on feedback information associated with the first plurality of frames, a second polarization configuration, which is different than the first polarization configuration, is selected for transmitting a second plurality of frames. Thereafter, the second plurality of frames is transmitted from the first device to the second device using the second polarization configuration for the first antenna.

Abstract: A system and method is described that computes an estimated current location for a client device based on both the detected current location and the predicted current location of the client device. By utilizing the predicted current location, the system and method may account for and compensate for anomalies and inaccuracies in the detected current location. Accordingly, the system and method provides a more accurate estimation for the current location of the client device based on examination of heuristics and a priori environmental data. In particular, the system and method compensates for detected locations that are impossible or improbable based on previous locations of the client device, the layout of the environment in which the client device is traversing, data describing the user of the client device, and/or data describing the client device.

Abstract: The present disclosure discloses a system and a method for conveying information using broadcast frames. Specifically, a network device detects a first wireless signal comprising a beacon frame transmitted by an access point in a network. The network device then identifies a radio Frequency (RF) channel indicated in the beacon frame. Responsive to identifying the RF channel in the beacon frame, the network device selects the RF channel to convey information to one or more network elements using a broadcast frame. Moreover, the network device transmits the broadcast frame to the one or more network elements. Note that, the broadcast frame includes information corresponding to a detected second wireless signal.

Abstract: Disclosed herein is a system, apparatus, and method for optimizing sounding and feedback overhead in a wireless digital network utilizing a beamforming technique by adaptively changing the frequency of sounding transmissions.

Abstract: According to one embodiment, a non-transitory computer readable medium within a first network device operating as an access point and comprising instructions which, when executed by one or more hardware processors, causes performance of a number of operations including transmission and reception of Peer-to-Peer messages between two or more network devices having Peer-to-Peer functionality. Thereafter, negotiations are conducted by network devices to selection of a Group Owner (GO) for a Peer-To-Peer group. The negotiations comprise specifically selecting a set of one or more values that ensures the first network device obtaining the GO role for Peer-to-Peer communications within the Peer-to-Peer group instead of randomly selecting the one or more values for the negotiating of the GO role.

Abstract: Described herein are systems, devices, techniques and products for managing the dynamic assignment of media access control (MAC) addresses to wireless network devices, such as by identifying a dynamically assigned MAC address before, after, or during a wireless association process and communicating the dynamically assigned MAC address to a wireless network device. Also disclosed are systems, devices, techniques and products for preventing a denial of service attack on a wireless access point's association table, such as by requiring devices that associate with a wireless access point to respond to a query from the wireless access point shortly after association.

Abstract: According to one embodiment of the invention, a network device comprises a plurality of antenna elements, one or more hardware processors, and a memory communicatively coupled to the one or more hardware processors. The memory comprises selective beamforming grouping logic that, upon execution by the one or more processors, aggregates a plurality of beamforming-enabled client devices within a coverage area of the network device. Furthermore, the selective beamforming grouping logic further categorizes the plurality of beamforming-enabled client devices into a plurality of groups based on a data transfer rate level supported by each of the plurality of beamforming-enabled client devices, determines a subset of client devices within a first group of the plurality of groups associated with a lowest data transfer rate level, and applies transmit beamforming simultaneously or at least concurrently for each client device of the subset of client devices.

Abstract: According to one embodiment of the disclosure, a non-transitory computer readable medium (CRM) comprising instructions, which when executed by one or more hardware processors, causes performance of operations comprising: listening, by a first digital device in a group of digital devices, for any advertisement for a particular service; responsive to the first digital device not receiving any advertisement for the particular service for a predetermined period of time: transmitting, by the first digital device, a first advertisement for the particular service; and providing, by the first digital device, the particular service.

Abstract: A non-transitory computer readable medium storing instructions which, when executed by one or more hardware processors, causes performance of operations including: performing, by a controller, one or more processing actions for data corresponding to a particular session associated with a client device; identifying one or more characteristics corresponding to the particular session; based on the one or more characteristics corresponding to the particular session: selecting a network device, other than the controller, to perform the one or more processing actions for the data corresponding to the particular session; causing the network device to perform the one or more processing actions, for the data corresponding to the particular session, instead of the controller.

Abstract: Providing mobile remote access in a secure manner. A bridge application is provided for devices such as smart phones which establishes a first secure connection to a host controller using a carrier network, advertises one or more SSIDs using a second wireless connection on the device such as an IEEE 802.11 interface, accepting and authenticating connections from a target device to the advertised SSID, and acting as a bridge for traffic between the target device and the host controller. The bridge application may be delivered to the device fully configured, or it may be delivered unconfigured with configuration information either supplied by the user or provided in an e-mail to the user of the device.

Abstract: Disclosed herein, one embodiment of the disclosure is directed to a system, apparatus, and method for location estimation in the presence of multipath/non-line-of-sight (NLOS) conditions. Various methods have been contemplated to detect the level of multipath/NLOS propagation between two devices. A SNR variation method determines how the SNR of each chain/stream is varying over a time window in order to detect the chain/stream with least local scattering or multipath. A measure of coherence SNR is defined to measure the level of multipath/NLOS per-chain/stream. Moreover, since per-subcarrier SNR information is available at the one or both nodes, the coherence methods can be used on a per-subcarrier basis to detect multipath/NLOS for the entire channel, for the specific spatial stream or for the specific frequencies occupied by the subcarriers. Furthermore, a coherence bandwidth estimation method uses the SNR variation over subcarriers to detect the coherence bandwidth of the spatial stream.

Abstract: A method includes dynamically determining transmission parameters for transmission of beacon frames corresponding to a Wireless Local Area Network (WLAN) supported by an access point. The transmission parameters being based on zero or more client devices connected to the WLAN or monitored data indicative of a load at the access point.

Abstract: The present disclosure discloses a method and a network device for efficient mobile client device roaming in a wireless local area network with multiple access points. Specifically, a network device determines a first received signal strength value for a first set of signals transmitted between a client device and a first access point during a first time period; and, determines a second received signal strength value for a second set of signals transmitted between a client device and the access point during a second time period. Based on the first and the second signal strength values, the network device computes a change in signal strength value corresponding to wireless communication between the client device and the first access point. Based on the change in signal strength value, the network device selects the access point from a plurality of access points for providing network access to the client device.

Abstract: The present disclosure discloses a system and a method for providing radio frequency based access point load balancing in a controller cluster. Specifically, a network device detects a long-term network topology change in a network having a controller cluster, wherein the controller cluster comprises a plurality of controllers, and automatically reassigns one or more of a plurality of access points that are managed by a first controller to a second and different controller in the controller cluster without interrupting network traffic to and from client devices associated with the one or more of the plurality of access points. The access points are located within a particular radio frequency neighborhood. Also, the one or more of the plurality of access points provide adequate coverage in the particular radio frequency neighborhood in the event that the first controller and its corresponding access points after the reassignment become unavailable.

Abstract: The present disclosure discloses a network device and/or method for computing coverage set and resource allocations in wireless networks. The disclosed network device selects a radio frequency subdomain in a wireless network, and further determines a coverage set for the selected radio frequency subdomain. The coverage set includes a subset of access nodes in the selected radio frequency domain. Moreover, a respective access node in the radio frequency subdomain satisfies one of (a) the respective access node is a member of the coverage set, and (b) the respective access node is covered by at least one member of the coverage set with a signal strength stronger than a predetermined threshold.

Abstract: Described herein are systems, devices, techniques and products for managing the dynamic assignment of media access control (MAC) addresses to wireless network devices, such as by identifying a dynamically assigned MAC address before, after, or during a wireless association process and communicating the dynamically assigned MAC address to a wireless network device. Also disclosed are systems, devices, techniques and products for preventing a denial of service attack on a wireless access point's association table, such as by requiring devices that associate with a wireless access point to respond to a query from the wireless access point shortly after association.

Abstract: The present disclosure discloses a method and a network device for partitioning data sets for transmission on multiple physical links in a network. Specifically, a network device receives a particular data set addressed to a client device. The network device partitions the particular data set into at least a first subset of data and a second subset of data. Then, the network device encapsulates the first subset of data using a first header and encapsulating the second subset of data using a second header that results in (a) data with the first header being transmitted on a first physical link and (b) data with the second header being transmitted on a second physical link different than the first physical link. Finally, the network device transmits the first subset of data with the first header and the second subset of data with the second header.

Abstract: An example embodiment includes a method and a network device for detecting use of wrong IP addresses by wireless client devices. Specifically, the network device matins a range of valid IP addresses for a particular IP subnet. Also, the network device receives a message from a wireless client device by an access point on the particular IP subnet. The network device then determines a source IP address in the message received on the particular IP subnet. Further, the network device determines that the source IP address does not match the range of valid IP addresses for the particular IP subnet. Responsive at least to determining that the source IP address does not match the range of valid IP addresses for the particular IP subnet, the network device transmits at least one message that causes the wireless client device to request a new IP address.