Aruba Networks Patent Grants

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…

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…

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…

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.

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…

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…

Optimizing the use of shared radio frequency medium using intelligent suppression of probe request frames

Granted: April 11, 2017
Patent Number: 9622269
Described herein are systems, methods and computer program products for controlling operation of wireless network devices, such as wireless access points and wireless client devices. The techniques described simplify the process of associating wireless devices with wireless networks. Wireless devices can associate with a wireless access point without knowing details of the wireless access point, such as a service set identifier (SSID). Upon associating with a wireless access point,…

System, apparatus and method for reducing failover time through redundancy using virtual access points

Granted: March 28, 2017
Patent Number: 9608859
According to one embodiment of the disclosure, a non-transitory computer readable medium is described for an network device, where the medium comprising instructions which, when executed by one or more hardware processors, cause performance of a number of operations. These operations include configuring a first network device to provide network access to a client device using a first Basic Service Set Identification (BSSID) and determining that the first network device is not responsive.…

Eco-friendly power over ethernet

Granted: March 28, 2017
Patent Number: 9609590
The present disclosure discloses a method and network device for providing an eco-friendly PoE mechanism in a WLAN. Specifically, a network device determines that an access point (AP) is connected to two or more network devices that include functionality to power the first AP, selects a first network device and causes the first network device to power the AP instead of the second network device, which is currently powering the AP. Moreover, the network device disables power supply on a…

Determining a location of a target wireless device

Granted: March 14, 2017
Patent Number: 9596567
Various techniques and systems are provided for determining a location of a target wireless device. Specifically, various techniques and systems are provided for determining a location of a wireless device using timestamps assigned to communications transmitted between the wireless device and one or more other wireless devices on a same WiFi channel as the wireless device. Implementations describe devices, computer-program products, and methods including transmitting a beacon frame by a…

Network controller failover request to reduce network outages

Granted: March 7, 2017
Patent Number: 9588850
A system is described that includes a first network controller and a second network controller. The first controller operates as a master controller and the second controller operates as a standby controller for a set of access points. Using a set of VRRP advertisements between the first and second controllers, the second controller may (1) determine that the first controller has failed independent of any determination by the access points and (2) send a failover request to the access…

Method and system for dynamically prioritizing user connections on network

Granted: March 7, 2017
Patent Number: 9590916
The present disclosure discloses a method and network device for dynamically prioritizing user connections on network. The disclosed system identifies a priority class associated with a client device prior to an initial connection from the client device to a network, and reserves access to a network resource for the client device based on the priority class prior to the initial connection. Specifically, the system evaluates a total capacity of the network resource and an anticipated…

Application authentication using network authentication information

Granted: March 7, 2017
Patent Number: 9590972
In general, in one aspect, embodiments relate to receiving, by a system of one or more network devices from a client device, a request to access one or more applications, determining, by the system, that the client device has already been authenticated to access a network, and based on determining that the client device has already been authenticated to access the network, causing authenticating of the client device for accessing the one or more applications.

Provisioning access point bandwidth based on predetermined events

Granted: March 7, 2017
Patent Number: 9591562
The present disclosure discloses a method and network device for provisioning access point bandwidth based on predetermined events. The disclosed system identifies a pattern for one or more devices over a period of time, the pattern indicating that the one or more devices (a) connect to a particular access point at a particular time of day, or (b) are located near the particular access point at the particular time of day. Prior or approximately the particular time, the disclosed system…

Method and system for tracking devices

Granted: March 7, 2017
Patent Number: 9591570
Described herein are systems, methods and computer program products for controlling operation of wireless beacons, such as Bluetooth Low Energy beacons. Multiple beacons may be controlled centrally or may work together in a cooperative fashion such that related advertisement signals are transmitted by each beacon in a cooperative fashion to allow, for example, long-term indoor tracking of mobile devices in standby, locked, or sleep modes or with applications in background or…

Determining access point power output

Granted: March 7, 2017
Patent Number: 9591588
Examples relate to determining access point power output. In one example, a computing device may: identify, for a particular access point, a plurality of neighboring access points; identify, for each neighboring access point, a pathloss value that indicates a difference in a transmit power of the neighboring access point and a received signal strength observed by the particular access point; identify, from the neighboring access points, at least one adjacent access point, each adjacent…

Infrastructure coordinated media access control address assignment

Granted: February 28, 2017
Patent Number: 9584471
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 grouping and assigning channels in a network system

Granted: February 28, 2017
Patent Number: 9585143
System and methods are provided for dynamically assigning wireless channels to priority groups based on characteristics of the channels, the environment in which the channels will be used, regulatory requirements, and/or capabilities of client devices. Thereafter, channels may be intelligently assigned to access points to achieve one or more goals. For example, wireless channels may be assigned to access points to ensure balanced coverage throughout the network system for client devices…

Enforcing station fairness with MU-MIMO deployments

Granted: February 21, 2017
Patent Number: 9577727
A non-transitory computer readable medium including instructions which, when executed by one or more hardware processors, causes performance of operations. The operations include: obtaining a first pathloss value for a first data transmitted between a first device and a second device; receiving, at a first component of the first device, a second data to be transmitted to the second device; based at least on the first pathloss value: selecting a first subset of the second data for…

Mitigating interference in wireless systems

Granted: February 21, 2017
Patent Number: 9577796
According to one embodiment of the invention, a non-transitory computer readable medium for configuring a noise floor of a network device based on the detection of a non-Wi-Fi signal is described. One embodiment of the non-transitory computer readable medium comprises instructions that detect a non-Wi-Fi signal, determine a noise floor based on at least one attribute of the non-Wi-Fi signal and configure the noise floor of the network device such that the network device receives signals…