Airties Belgium Sprl

At&t Intellectual Property I, L.p.

At+t Corp.

Thomson Licensing

Renata Teixeira

Koen Van Oost

Jennifer Lynn Rexford

Karel Van Doorselaer

Mauricio Resende

Diego Neves Da Hora

Timothy Griffin

Martin May

Lucas Di Cioccio

Christian Kreibich

The present disclosure is directed toward a device and a method for evaluating a wireless link established between an access point and a user equipment. The device and method include determining a level of Quality of Experience of an application intended to be run on the user equipment using a mapping between a parameter representative of the QoE of the application under different wireless transmission conditions and sets of parameters representative of said different transmission conditions of the wireless link.

Method for predicting a level of QoE of an application intended to be run on a wireless user equipment

A method of monitoring data traffic across a gateway device connecting a first and a second networks includes comparing values obtained from data counters in the gateway device with defined amounts of data sent from the first to the second network or received from the second network in the first network. The method allows for detecting unauthorized or unwanted traffic as well as locating data loss in the first or second networks.

Methods for monitoring data traffic in a gateway device

A flexible mechanism for routers to select the egress point for each destination prefix, herein referred to as tunable inter-domain egress (TIE) selection, comprises the step of ranking possible points of egress according to a metric, allowing network administrators to satisfy diverse goals, such as traffic engineering and robustness to equipment failures. A weighting function is discussed whereby known hot potato routing can be weighted against a fixed ranking scheme. TIE has been applied to data of two different autonomous systems posing different problems solved using integer-programming and multi-commodity flow techniques, respectively, to tune the TIE according to the weighting function to satisfy network-wide objectives. Experiments with traffic, topology and routing data from two different backbone networks demonstrate that TIE is both simple (for the routers) and expressive (for the network administrators) and can be practically applied in traffic engineering.

Traffic engineering method with tunable inter-domain egress selection

A flexible mechanism and method for routers to select the egress point for each destination comprises identifying a plurality of points of egress from an autonomous system, ranking the plurality of points of egress according to a metric having variable and fixed terms, selecting a point of egress having the smallest rank, and transmitting packets from a point of ingress via a path to the selected point of egress. The metric is across a plurality of destinations and respective possible points of egress from the autonomous system and the metric is m(i, p, e) equaling &#x3b1;(i, p, e)&#xb7;d(G,i,e)+&#x3b2;(i, p, e) where a and &#x3b2; are configurable values, i is the identity of the router, p is the destination, G is an undirected weighted graph, the d function is the interior gateway protocol distance and e is a point of egress.

Method for tunable inter domain egress selection

Growing community of inventors

Paris, France

Renata Teixeira