Patents by Inventor Frank Zdarsky

Frank Zdarsky has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9439104
    Abstract: A method for supporting admission control and/or path selection in a communication network, the network including a plurality of wireless communication links, possibly of different link technologies, established between a plurality of network nodes, includes the steps of partitioning the communication links of the network into groups of communication links—link groups—, assigning each link group an associated link group controller that is configured to observe and/or measure the performance and/or quality of the link group, based on the observations and/or measurements, computing estimates of metrics for the capacity of the respective link group and the costs for using each of the communication links of the respective link group, and transmitting the estimates to at least one resource management entity being configured to take admission control and/or path selection decisions on the basis of the estimates.
    Type: Grant
    Filed: July 15, 2010
    Date of Patent: September 6, 2016
    Assignees: NEC CORPORATION, UNIVERSIDAD CARLOS III DE MADRID
    Inventors: Frank Zdarsky, Xavier Pèrez Costa, Roberto De Marca, Albert Banchs, Antonio De La Oliva
  • Patent number: 9107110
    Abstract: A clustered femtocell network including a plurality of femtocell access points that are connected via a logical interface to a mobile network in order to provide user equipments with radio access to the mobile network, wherein the mobile network includes a Mobility Management Function—MMF—, is characterized in that a logical function—Proxy Mobility Management Function P-MMF—is provided that localizes mobility management of the user equipments in the clustered femtocell network, wherein the P-MMF intercepts and interprets mobility-related signaling between the MMF and the femtocell access points in such a way that it emulates towards the femtocell access points the behavior of the mobile network's MMF and towards the mobile network's MMF the behavior of the femtocell access points. Furthermore, a method for operating a clustered femtocell network is disclosed.
    Type: Grant
    Filed: August 9, 2010
    Date of Patent: August 11, 2015
    Assignee: NEC EUROPE LTD.
    Inventors: Frank Zdarsky, Andreas Maeder, Sabah Al Sabea, Stefan Schmid
  • Patent number: 9107114
    Abstract: A method for supporting quality of service (QoS) mechanisms during a handover process or in preparation of a handover process, wherein a user equipment (UE) attaches to an access network (AN) via points of attachment (PoA), wherein the handover process supports changing connection of the UE from one of the points of attachment—current PoA—to another one of the points of attachment—target PoA—while maintaining all ongoing connections of the UE, wherein signalling messages are exchanged between the current PoA and a second PoA during or in preparation of the handover process, the second PoA including the target PoA or a candidate for the target PoA, and wherein the AN supports inner QoS mechanisms on a communication path within the AN, the communication path being used for communication between one of the PoA and a core network (CN) or between one of the PoA and a network entity within the AN, is characterized in that a triggering message is sent to the second PoA by the current PoA, the triggering message bein
    Type: Grant
    Filed: September 1, 2009
    Date of Patent: August 11, 2015
    Assignee: NEC EUROPE LTD.
    Inventors: Frank Zdarsky, Patrick Stupar, Stefan Schmid
  • Patent number: 8958339
    Abstract: A method for supporting routing decisions in a wireless mesh network, wherein the network (1) includes a multitude of wireless mesh nodes (2) and wherein at least two of the multitude of wireless mesh nodes (2) function as wireless mesh gateways (3) being connected to a wired infrastructure network (5) via wired and/or wireless links. With respect to an efficient routing of intra-mesh traffic that avoids congestions at the mesh gateways (3) as far as possible, the method includes the steps of performing a discovery mechanism for the wireless mesh gateways (3) to find and/or identify each other, establishing virtual wireless mesh links between the wireless mesh gateways (3) via the wired infrastructure network (5), determining the characteristics of the virtual wireless mesh links, and announcing the characteristics to the wireless mesh nodes (2). Further, a corresponding wireless mesh network with routing decision support is disclosed.
    Type: Grant
    Filed: May 22, 2009
    Date of Patent: February 17, 2015
    Assignee: NEC Europe Ltd.
    Inventors: Long Le, Frank Zdarsky
  • Patent number: 8908514
    Abstract: A method for supporting handover mechanisms, in particular Media Independent Handover (MIH) mechanism according to the IEEE 802.
    Type: Grant
    Filed: April 20, 2009
    Date of Patent: December 9, 2014
    Assignee: NEC Europe Ltd.
    Inventors: Frank Zdarsky, Patrick Stupar
  • Publication number: 20130122911
    Abstract: A clustered femtocell network including a plurality of femtocell access points that are connected via a logical interface to a mobile network in order to provide user equipments with radio access to the mobile network, wherein the mobile network includes a Mobility Management Function—MMF—, is characterized in that a logical function—Proxy Mobility Management Function P-MMF—is provided that localizes mobility management of the user equipments in the clustered femtocell network, wherein the P-MMF intercepts and interprets mobility-related signaling between the MMF and the femtocell access points in such a way that it emulates towards the femtocell access points the behavior of the mobile network's MMF and towards the mobile network's MMF the behavior of the femtocell access points. Furthermore, a method for operating a clustered femtocell network is disclosed.
    Type: Application
    Filed: August 9, 2010
    Publication date: May 16, 2013
    Applicant: NEC EUROPE LTD.
    Inventors: Frank Zdarsky, Andreas Maeder, Sabah Al Sabea, Stefan Schmid
  • Publication number: 20120170457
    Abstract: A method for supporting admission control and/or path selection in a communication network, the network including a plurality of wireless communication links, possibly of different link technologies, established between a plurality of network nodes, includes the steps of partitioning the communication links of the network into groups of communication links—link groups—, assigning each link group an associated link group controller that is configured to observe and/or measure the performance and/or quality of the link group, based on the observations and/or measurements, computing estimates of metrics for the capacity of the respective link group and the costs for using each of the communication links of the respective link group, and transmitting the estimates to at least one resource management entity being configured to take admission control and/or path selection decisions on the basis of the estimates.
    Type: Application
    Filed: July 15, 2010
    Publication date: July 5, 2012
    Applicants: UNIVERSIDAD CARLOS III DE MADRID, NEC EUROPE LTD.
    Inventors: Frank Zdarsky, Xavier Perez Costa, Roberto De Marca, Albert Banchs, Antonio De La Oliva
  • Publication number: 20120044887
    Abstract: A communication network, includes at least one mobile terminal (2) attached to a radio access network (3), the mobile terminal being enabled to run one or more applications (6), wherein the applications at least partly employ message-oriented application protocols. The network further includes a message delegation agent (5) configured to perform the steps of receiving request messages sent by the mobile terminal in order to request application related information and/or data, performing the necessary sequence of network protocol operations and associated exchanges with other network components on behalf of the mobile terminal, and for each of the request messages sending a single response message back to the mobile terminal, wherein the response message contains at least the application related information and/or data requested by the mobile terminal. Furthermore, a method for operating a communication network with improved energy efficiency for mobile terminals is also disclosed.
    Type: Application
    Filed: February 15, 2010
    Publication date: February 23, 2012
    Applicant: NEC EUROPE LTD.
    Inventors: Frank Zdarsky, Marco Liebsch
  • Publication number: 20120008527
    Abstract: A method for supporting routing decisions in a wireless mesh network, wherein the network (1) includes a multitude of wireless mesh nodes (2) and wherein at least two of the multitude of wireless mesh nodes (2) function as wireless mesh gateways (3) being connected to a wired infrastructure network (5) via wired and/or wireless links. With respect to an efficient routing of intra-mesh traffic that avoids congestions at the mesh gateways (3) as far as possible, the method includes the steps of performing a discovery mechanism for the wireless mesh gateways (3) to find and/or identify each other, establishing virtual wireless mesh links between the wireless mesh gateways (3) via the wired infrastructure network (5), determining the characteristics of the virtual wireless mesh links, and announcing the characteristics to the wireless mesh nodes (2). Further, a corresponding wireless mesh network with routing decision support is disclosed.
    Type: Application
    Filed: May 22, 2009
    Publication date: January 12, 2012
    Applicant: NEC EUROPE LTD.
    Inventors: Long Le, Frank Zdarsky
  • Publication number: 20110237256
    Abstract: A method for supporting quality of service (QoS) mechanisms during a handover process or in preparation of a handover process, wherein a user equipment (UE) attaches to an access network (AN) via points of attachment (PoA), wherein the handover process supports changing connection of the UE from one of the points of attachment—current PoA—to another one of the points of attachment—target PoA—while maintaining all ongoing connections of the UE, wherein signalling messages are exchanged between the current PoA and a second PoA during or in preparation of the handover process, the second PoA including the target PoA or a candidate for the target PoA, and wherein the AN supports inner QoS mechanisms on a communication path within the AN, the communication path being used for communication between one of the PoA and a core network (CN) or between one of the PoA and a network entity within the AN, is characterized in that a triggering message is sent to the second PoA by the current PoA, the triggering message bein
    Type: Application
    Filed: September 1, 2009
    Publication date: September 29, 2011
    Applicant: NEC EUROPE LTD.
    Inventors: Frank Zdarsky, Patrick Stupar, Stefan Schmid
  • Publication number: 20110216742
    Abstract: A method for supporting handover mechanisms, in particular Media Independent Handover (MIH) mechanism according to the IEEE 802.
    Type: Application
    Filed: April 20, 2009
    Publication date: September 8, 2011
    Applicant: NEC EUROPE LTD.
    Inventors: Frank Zdarsky, Patrick Stupar