System and method for conveying information using broadcast frames
Granted: June 27, 2017
Patent Number:
9693204
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…
Adaptive methods for optimizing sounding and channel feedback overhead in SU-MIMO and MU-MIMO beam forming
Granted: June 20, 2017
Patent Number:
9686004
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. The exemplary method comprises: transmitting a first plurality of sounding frames based on a first sounding interval, wherein the first sounding interval is a first period of time between transmissions of two sounding frames in the first plurality of sounding…
Group owner (GO) negotiation in peer to peer (P2P) communications to obtain group owner role
Granted: June 13, 2017
Patent Number:
9681365
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…
Wireless association table denial of service prevention
Granted: June 6, 2017
Patent Number:
9674703
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…
System and method for controlling selection of network devices for beamforming
Granted: June 6, 2017
Patent Number:
9673874
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…
Controller offloading
Granted: May 30, 2017
Patent Number:
9667728
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…
Mobile remote access
Granted: May 30, 2017
Patent Number:
9667652
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.…
Providing and resolving an IP address for swarm-based services
Granted: May 30, 2017
Patent Number:
9667512
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…
System and methods for location determination in MIMO wireless networks
Granted: May 23, 2017
Patent Number:
9658311
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…
Determining transmission parameters for transmitting beacon frames
Granted: May 23, 2017
Patent Number:
9661614
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.
System and method for computing coverage set and resource allocation in wireless networks
Granted: May 16, 2017
Patent Number:
9655120
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…
Efficient roaming of mobile clients
Granted: May 16, 2017
Patent Number:
9655038
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…
Radio property based access point load balancing in controller cluster
Granted: May 16, 2017
Patent Number:
9654991
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…
Infrastructure coordinated media access control address assignment
Granted: May 2, 2017
Patent Number:
9642003
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…
Reverse coverage heat map
Granted: April 25, 2017
Patent Number:
9632668
A non-transitory computer readable medium for storing instructions is disclosed. The instructions, when executed by one or more hardware processors, causes performance of operations including (i) for a plurality of wireless signals received by a first access point located in a physical environment, determining (a) a corresponding plurality of received signal strength values and (b) a corresponding plurality of locations from where the plurality of wireless signals were transmitted, and…
Method and apparatus for using call admission control for client balancing
Granted: April 25, 2017
Patent Number:
9635586
The present disclosure discloses a system and method for using call admission control for client balancing. Specifically, a network device receives a message from a first access point in a network indicating that the first access point has rejected a call request received by the first access point from a particular client device. The particular client device is associated with the first access point. Moreover, the network device selects a second access point that is located in a radio…
Partitioning data sets for transmission on multiple physical links
Granted: April 25, 2017
Patent Number:
9635148
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…
Obtaining a MAC address from an external source
Granted: April 25, 2017
Patent Number:
9634987
A non-transitory computer readable medium storing instructions which, when executed on one or more processors, cause performance of operations. The operations include: receiving a first message from a device; determining, in response to the first message, a media access control (MAC) address of the device; and transmitting, in response to the first message, a second message comprising the MAC address to the device.
Method and system for detecting use of wrong internet protocol address
Granted: April 25, 2017
Patent Number:
9634917
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…
Enhancing MU-MIMO to group clients across multiple BSSIDS for a physical radio
Granted: April 25, 2017
Patent Number:
9634745
MU-MIMO provides a mechanism for a wireless network device to transmit to multiple client devices at the same time. When employing MU-MIMO, a network device may group two or more associated client devices, and transmit beamformed signals to each group. In some implementations, a network device may initiate channel sounding. Channel sounding may include transmitting sounding frames to client devices associated with two or more basic service sets. Channel sounding may facilitate…
