Aruba Networks Patent Grants

Device abstraction in autonomous wireless local area networks

Granted: July 18, 2017
Patent Number: 9712383
According to embodiments of the present disclosure, a managed network device assigns to itself an IP address, in absence of a DHCP service, in a link local address space within a wireless network. The system further responds to a network frame received from another device based on the assigned IP address in the link local address space. The network frame can be a network traffic frame, a control path frame, and/or a management frame. The control path frame comprises a source IP address…

Client device address assignment following authentication

Granted: July 18, 2017
Patent Number: 9712489
Methods and systems are described for assigning the proper internet protocol (IP) address to a client device following authentication of the client device on a network. In particular, at commencement of an authentication procedure of the client device, a role is associated with the client device that denies all DHCP renews/requests. By assigning a role to the client device 103 with a “deny DHCP renew/request” rule at the commencement of an authentication procedure, the systems and…

Method and apparatus for avoiding double-encryption in site-to-site IPsec VPN connections

Granted: July 18, 2017
Patent Number: 9712504
A system and a method are described that reduce or eliminate inefficiencies caused by double encryption in network tunnel communications. In particular, a set of virtual tunnels may be established that require a lower level of encryption in comparison to a full-encryption tunnel. Upon determining that a session is end-to-end encrypted, the system and method described herein may assign the session to one of the virtual tunnels instead of the full-encryption tunnel. By intelligently…

System and method for displaying mobility trails for mobile clients

Granted: July 18, 2017
Patent Number: 9712975
The present disclosure discloses a system and a method for displaying mobile trails for mobile client devices. Specifically, a network device obtains a plurality of performance measurements and a corresponding plurality of physical locations for a client device over a period of time. Then the network device generates a plurality of visual representations for the client device over the period of time, each visual representation representing a respective performance measurement and a…

Session aware access point load balancing

Granted: July 18, 2017
Patent Number: 9713051
The present disclosure discloses a method and a network device for session aware access point load balancing. Specifically, a network device monitors data corresponding to a plurality of client devices associated with a first access point. Then, the network device determines whether the data matches particular criteria. Responsive to determining that the data matches the particular criteria, the network device select at least a first client device of the plurality of client devices for…

Method for RF management, frequency reuse and increasing overall system capacity using network-device-to-network-device channel estimation and standard beamforming techniques

Granted: July 11, 2017
Patent Number: 9706415
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…

Adaptive management of wireless clients based on clients radio behaviors and capabilities

Granted: July 11, 2017
Patent Number: 9706491
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…

System, apparatus and method for intergrated wireless link management for a multi-polarized antenna system

Granted: July 4, 2017
Patent Number: 9698883
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,…

Determining location based on both a detected location and a predicted location

Granted: July 4, 2017
Patent Number: 9699618
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…

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…

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…

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…

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…

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.…

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…

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.

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…