Hewlett Packard Enterprise Development LP

Aruba Networks, Inc.

Hewlett-packard Development Company, L.p.

Sachin Ganu

Eldad Perahia

Gaurav Patwardhan

Mohd Shahnawaz Siraj

Nitin A Changlani

Partha Narasimhan

Dongwoon Hahn

Pradeep Iyer

Qiang Zhou

Shahnawaz Siraj

Jose Tellado

Abhiruchi Dakshinkar

Nethra Muniyappa

Daniel N Harkins

Mathieu Mercier

Sree Harsha

Gautam Bhanage

Andre Beaudin

Rajini Balay

Gopalakrishna Raman

Vikram Raghu

Bernd Bandemer

Charles Lukaszewski

Hao Lu

Omar El Ferkouss

Amogh Guruprasad Deshmukh

Ken Kaho Chan

Sai Pradeep Venkatraman

Jin Xie

Jiwoong Lee

Isaac Theogaraj

Gopal Gupta

Farhan Hasnain

Piyush Agarwal

Deven Mohan Patel

Kiran Ashokan

Abhinesh Mishra

Liang Li

Mohan Ram Bhadravati Ramakrishna Bhat

Karthik Srinivasa Murthy

Ahmad Kholaif

Xiaoding Shang

Rajesh Bhagwat

Parag Dedhia

Kenneth Chan

Jianpo Han

Guangzhi Ran

Sathish Damodaran

Manoj Thawani

Venkatesh Kannan

Ben Dunsbergen

Shubham Saloni

Prakash Guda

Kalyan Dharanipragada

Yu Liu

Ahmed Khidre

Vinod Arjun

Stuart Walker Strickland

Shruthi Koundinya

Juei Cheng Lo

Scott McGrath

Kishore Srimattirumala

Maruthi Bathina

Karthik Rangaraj Manavalan

Eloy Jr Galdones

Denis Houle

Systems and methods are provided for encryption enhancement for a multi-link operation. Various subsets of addresses (or all addresses) associated with the frame are set to a determined known value, allowing encryption of the mac protocol data unit (MPDU) at a controller without knowledge of which particular link the frames will be sent. The multi-link devices (MLDs) used in the above communication may conduct communications in compliance with the IEEE 802.11be standard.

Encryption enhancement for multi-link operation in 802.11

Currently, spatial reuse (SR) is a feature used indiscriminately for/across all traffic classes. However, systems and methods are provided for increasing the reliability of voice traffic and Transmission Control Protocol (TCP) Acknowledgement (ACK) messaging. The result is improved quality of voice calls, and enhanced network capacity. When the length of a data section of a packet suggests that subsequent packets are associated with voice traffic or TCP ACKs, such packets are not transmitted when another transmission(s) is occurring under spatial reuse. When a determination is made that the length of a data section of the packet suggests non-voice traffic or TCP ACKs, they can be transmitted simultaneously with other transmissions occurring under spatial reuse.

Selective spatial reuse to enhance network performance

Systems and methods are provided for optimizing resource consumption by bringing intelligence to the key allocation process for fast roaming. Specifically, embodiments of the disclosed technology use machine learning to predict which AP a wireless client device will migrate to next. In some embodiments, machine learning may also be used to select a subset of top neighbors from a neighborhood list. Thus, instead of allocating keys for each of the APs on the neighborhood list, key allocation may be limited to the predicted next AP, and the subset of top neighbors. In some embodiments, a reinforcement learning model may be used to dynamically adjust the size of the subset in order to optimize resources while satisfying variable client demand.

Optimizing key allocation during roaming using machine learning

Examples described herein provide automatic location of access points by a computing device. Examples may include receiving, by the computing device from each AP in a subset of a plurality of APs, a Global Navigation Satellite System (GNSS) signal measurement, and based on each received GNSS signal measurement, constraining, by the computing device, the map of relative AP locations by at least one translational degree of freedom or one rotational degree of freedom. Examples may include resolving, by the computing device, locations of the plurality of APs in the map of relative AP locations.

Automatic location of access points in a network

Systems and methods for determining a physical location of access points in a wireless network that include a plurality of access points, the plurality of access points in the wireless network including anchor access points with respective known locations and unanchored access points without respective known locations, may include: a first plurality of unanchored access points neighboring the anchor access points receiving known-location information from the anchor access points, performing range measurements to the anchor access points to determine their respective locations in the wireless network, thereby becoming pseudo-anchor access points; a second plurality of unanchored access points in communicative contact with a plurality of the pseudo-anchor points receiving the determined-location information from the pseudo-anchor access points, performing range measurements to the pseudo-anchor access points to determine their respective locations in the wireless network, thereby becoming pseudo-anchor access points.

Distributed access point location determination in enterprise wireless networks

Systems and methods are provided for defining a split multi-link system. For example, the split multi-link system can define a multi-link device (MLD), where the MLD operates a first radio from a first AP of a plurality of APs and a second radio from a second AP of the plurality of APs through a Media Access Control (MAC) Service Access Point (SAP) of the split multi-link system. The first radio from the first AP and the second radio from the second AP may operate at different frequencies. The split multi-link system may also affiliate the first radio from the first AP and the second radio from the second AP with the MLD, where, using the MLD, the split multi-link system can transmit or receive one or more data frames from the MLD to a non-MLD or MLD client device using the first radio or the second radio.

Split multi-link system

Systems and methods for dynamic client segregation in 802.11ax networks includes determining, for each access point of a plurality of access points in a network, a ratio comprising a number of fully uplink multi-user capable client devices to a total number of client devices connected to the access point; and steering, based on at least the ratio, client devices of the network to particular access points of the plurality of access points.

Dynamic client segregation in 802.11ax networks

Systems and methods are provided for seamless roaming in a network. First, a client device is authenticated at a first access point of the network. Next, a processor selectively determines, among remaining access points in the network, second access points at which respective precursor keys, such as Pairwise Master Keys R1 (PMK-R1s) are to be computed. The second access points are determined based on any of respective path losses from the first access point to the second access points and respective historical frequencies at which the client device associates at the respective remaining access points. For the second access points, the respective PMK-R1s are computed and transmitted to the second access points to be cached. Next, following a request from the client device to reassociate to a second access point of the second access points, the client device is authenticated at the second access point based on a corresponding PMK-R1.

Selective caching of pairwise master keys in streamlined roaming

A method for identifying a client device in a network, and a first radio in the network that is coupled with the client device is provided. The method includes determining one or more sequences of roaming events for multiple client devices in the network, evaluating a performance metric for a roaming event and evaluating an interaction between the client device and one or more radios involved in the roaming events for the plurality of client devices. The method also includes selecting a second radio in the network based at least in part on (1) the one or more sequences of roaming events, (2) the performance metric, and (3) the interaction between the client device and the one or more radios, and recommending switching the client device from the first radio to the second radio. A system and a predictive tool to perform the above method are also provided.

Assisted network roaming with predictive network tool

Examples described herein provide channel assignments for ranging between network devices in a network during beacon intervals. Examples described herein may assign a plurality of channels to a plurality of network devices based on a plurality of channel assignment permutations, and initiate, during beacon intervals, ranging measurements between the plurality of network devices on the plurality of channels based on each of the channel assignment permutations to generate ranging results. Examples described herein may determine whether total ranging measurements are performed for a threshold percentage of available links between the plurality of network devices on the plurality of channels, wherein the total ranging measurements include the ranging measurements based on each of the channel assignment permutations. Examples described herein may, based on a determination that the total ranging measurements are performed for the threshold percentage of available links, resolve locations of the plurality of APs based on the ranging results.

Channel assignments for ranging between access points during beacon intervals

Examples described herein provide coordinated ranging between APs in a network. Examples described herein may receive, by a computing device, neighbor adjacency information for a plurality of access points (APs) in a network, and based on the neighbor adjacency information, assign, by the computing device, subsets of the plurality of APs to non-overlapping zones. Examples described herein may initiate, by the computing device for each of the non-overlapping zones, ranging measurements between the subset of APs in the zone to generate a ranging result, wherein the ranging measurements between the subsets of APs in the non-overlapping zones are performed in parallel. Examples described herein may, based on the ranging results, resolve, by the computing device, locations of the plurality of APs.

Coordinated ranging between access points in a network

Examples described herein provide ranging by a network device during a beacon interval. Examples described herein may discover, by a network device during a first beacon interval, a plurality of APs in a network that are capable of ranging and a received signal measurement of each of the plurality of APs. Examples described herein may select, by the network device, an AP with a strongest received signal measurement among the plurality of APs, determine, by the network device, whether the selected AP is available for ranging, and based on a determination that the selected AP is available for ranging, initiate, by the network device during a second beacon interval, ranging measurements with the selected AP to generate a ranging result. Examples described herein may, based on the ranging result, resolve locations of the plurality of APs.

Ranging by a network device during a beacon interval

Examples described herein mitigate adjacent channel interference for dual radios of a network device. Examples described herein may associate, by a network device, a first client device with a first radio of the network device, associate, by the network device, a second client device with a second radio of the network device, determine that the first and second client devices are within a steering threshold, and based on the determination that the first and second client devices are within the steering threshold, steer, by the network device, the second client device from the second radio to the first radio. Examples described herein may communicate, using the first radio of the network device, with the first and second client devices.

Mitigating adjacent channel interference for a dual radio network device

Systems and techniques are described that are directed to intelligent scheduling of Wi-Fi services for applications, including enhanced dynamic prioritization. A device, such as an access point (AP), can receive data packets from multiple connected devices to dynamically identify an application flow for each data packet, and dynamically identify a user associated with the application flow for each data packet. The AP can generate prioritized candidate lists for selected data packets in queues corresponding to an access category (AC). In response to determining that the identified user associated with the application flow corresponds with a critical user, the AP can select data packets for the prioritized candidate lists based at least in part on priority policies for each of a plurality of applications and based at least in part on dynamic prioritization of applications for each of a plurality of applications; and schedule data packets from the prioritized candidate lists.

Methods and systems to dynamically prioritize applications over 802.11 wireless LAN

Systems and methods for providing enhanced Quality of Service (QoS) network transmissions can be based on an application sub-class or a user class. Systems and methods can include inspecting the information packet having a network level QoS field having a first network level QoS portion and a second network level QoS portion, determining an application sub-class or user class associated with the information packet, tagging the first network level QoS portion of the information packet according to a first network level QoS value, tagging the second network level QoS portion of the information packet according to a traffic priority indication and to a determined application sub-class or user class, and queuing the information packet for transmission from a network element based on the tagged first network level QoS portion and the second network level QoS portion.

Consistent Quality of Service policy in a software defined enterprise

Growing community of inventors

San Jose, CA, United States of America

Sachin Ganu