Patents by Inventor Dirk Kampmann

Dirk Kampmann 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: 10750574
    Abstract: The invention proposes to introduce a method for a Radio Access Network for providing “Local Switching” between call legs of a call. Within said method the Radio Access Network receives a call identifier for a leg of a call from a Core Network to be handled by the Radio Access Network. The Radio Access Network stores said received call identifier, compares said received call identifier with stored call identifiers for call legs of calls via said Radio Access Network. If said received call identifier matches a stored call identifier the Radio Access Networks establish local switching of call legs identified by the matching call identifier. In an alternative embodiment, the invention proposes to introduce a method for a Core Network for providing local switching for call legs of a call. Within said method the Core Network receives or generates a call identifier for a leg of a call. The Core Network stores said received call identifier and identifies a respective Radio Access Network for said leg of said call.
    Type: Grant
    Filed: July 24, 2009
    Date of Patent: August 18, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Dirk Kampmann, Karl Hellwig, Philip Hodges, Paul Schliwa-Bertling
  • Patent number: 10735330
    Abstract: The present invention relates to a method, by a target node classification entity (100), to control an application of a service providing module (50) to a data packet flow, wherein the data packet flow is transmitted to a target node (310, 320) through a service network where the service providing module (50) applies a service to the data packet flow. The method comprises the following steps: First, from a flow classification entity (40), flow classification data about the data packet flow is received, the flow classification data including at least a flow classifier classifying the data packet flow, a flow identifier uniquely identifying the data packet flow, and a target node address to which the data packet flow is addressed. Then, the target node is classified based on the flow classifier contained in the received flow classification data, wherein a first service classifier is generated for the target node based on the flow classifier.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: August 4, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventor: Dirk Kampmann
  • Publication number: 20200205046
    Abstract: Systems and methods related to performing an assignment and a handover in a radio communication network are provided. In one exemplary embodiment, a method performed by a Mobile Switching Center (MSC) of a radio communication network may include seizing resources for a Time Division Multiplexed (TDM) bearer and an Internet Protocol (IP) bearer for use on a terrestrial A-interface of the radio communication network for an activity to be performed by a target Base Station Controller (BSC) of the radio communication network. Further, the method may include sending, to the target BSC, an indication that requests the activity be performed by the target BSC and that also identifies the seized resources for the TDM bearer and the IP bearer for use on the terrestrial A-interface for the activity.
    Type: Application
    Filed: March 4, 2020
    Publication date: June 25, 2020
    Inventors: Dirk Kampmann, Karl Hellwig, Paul Schliwa-Bertling
  • Patent number: 10645620
    Abstract: Systems and methods related to performing an assignment and a handover in a radio communication network are provided. In one exemplary embodiment, a method performed by a Mobile Switching Center (MSC) of a radio communication network may include seizing resources for a Time Division Multiplexed (TDM) bearer and an Internet Protocol (IP) bearer for use on a terrestrial A-interface of the radio communication network for an activity to be performed by a target Base Station Controller (BSC) of the radio communication network. Further, the method may include sending, to the target BSC, an indication that requests the activity be performed by the target BSC and that also identifies the seized resources for the TDM bearer and the IP bearer for use on the terrestrial A-interface for the activity.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: May 5, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Dirk Kampmann, Karl Hellwig, Paul Schliwa-Bertling
  • Patent number: 10439962
    Abstract: A technique for packet ingress processing and packet egress processing in an OpenFlow, OF, switch is presented. A method aspect directed to packet ingress processing comprises receiving a packet at an OF port. The packet is associated with one of multiple logical flow entities, such as logical ports, allocated to the OF port. In a next step, the logical flow entity associated with the received packet is determined. Then, metadata for the packet is tagged with an identifier for the logical flow entity associated with the packet. The tagging controls handling of the packet at egress processing. The packet handling, in turn, may include a selective dropping or passing of the packet.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: October 8, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Prashant Anand, Mark Hlady, Dirk Kampmann, Jan Scheurich
  • Publication number: 20180332510
    Abstract: Systems and methods related to performing an assignment and a handover in a radio communication network are provided. In one exemplary embodiment, a method performed by a Mobile Switching Center (MSC) of a radio communication network may include seizing resources for a Time Division Multiplexed (TDM) bearer and an Internet Protocol (IP) bearer for use on a terrestrial A-interface of the radio communication network for an activity to be performed by a target Base Station Controller (BSC) of the radio communication network.
    Type: Application
    Filed: July 24, 2018
    Publication date: November 15, 2018
    Inventors: Dirk Kampmann, Karl Hellwig, Paul Schliwa-Bertling
  • Patent number: 10075884
    Abstract: Systems and methods related to performing an assignment and a handover in a radio communication network are provided. In one exemplary embodiment, a method performed by a Mobile Switching Center (MSC) of a radio communication network may include seizing resources for a Time Division Multiplexed (TDM) bearer and an Internet Protocol (IP) bearer for use on a terrestrial A-interface of the radio communication network for an activity to be performed by a target Base Station Controller (BSC) of the radio communication network.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: September 11, 2018
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Dirk Kampmann, Karl Hellwig, Paul Schliwa-Bertling
  • Patent number: 9853901
    Abstract: The invention relates to a central control entity (200) configured to control a data plane flow of a stream of data packages in a radio access network part of a mobile communications network. The central control entity (200) comprises an information detecting unit (210), configured to detect information about data plane applications (41-44) attached to forwarding elements (120-124; 131-134) of the radio access network part and configured to detect information about at least one data plane application (41-44) that is to be applied to said data plane flow.
    Type: Grant
    Filed: August 18, 2011
    Date of Patent: December 26, 2017
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Dirk Kampmann, Srinivas Kadaba, Andreas Witzel
  • Patent number: 9848355
    Abstract: The invention relates to a central control entity (100) configured to control a data plane flow of a stream of data packages in an access network part of a mobile communications network, the central control entity comprising:—a detecting unit (140), configured to detect a presence of data plane applications (300) linked to forwarding elements (200) of the access network part, configured to detect information about a type of data plane application that is to be applied to said data plane flow, and configured to detect flow information reports from forwarding elements (200) which are directly linked to one network node containing the determined type of data plane application, each flow information report from one of the forwarding elements (200) containing information about a data packet volume transmitted from said one forwarding element to said one data plane application,—a flow control unit (110) configured to determine a path of the data plane flow through the forwarding elements (200) of the access network
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: December 19, 2017
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Dirk Kampmann, Andreas Witzel
  • Patent number: 9832098
    Abstract: A method for connecting, by a central control unit (CCU), a booting switch to a network. The network includes switches controlled by the CCU using control data packets that are transmitted via communications paths in the network. User packets are transmitted through the network using the same communications paths. A switch uses forwarding rules stored in a pipeline to forward packets in the network. A local port in each switch provides access to the pipeline. The paths in the network for the control data packets are established by storing forwarding rules configured by the CCU in the pipelines of the switches. At least one switch contains a connecting port via which the booting switch is connected to the network. The forwarding rules in the booting switch are stored by the CCU using a temporary path, which contains the existing path and a connecting path.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: November 28, 2017
    Assignee: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventors: Jan Scheurich, Dirk Kampmann, Christoph Meyer, Andreas Witzel
  • Patent number: 9716652
    Abstract: A method for handling, by a ring node of a network having a ring topology, a data transfer of data packets through the network via which the data packets are transmitted to their destination node, wherein each ring node has two neighboring ring nodes. The method includes detecting data packets of an incoming data transfer received from a non ring node to be transmitted through the network to their destination node. Furthermore, a ring direction is added to the data packets of the incoming data transfer, the indication indicating in which direction the data packets of the incoming data transfer are passed through the network having the ring topology. The data packets of the incoming data transfer are forwarded to one of the two neighboring ring nodes based on the added indication.
    Type: Grant
    Filed: March 5, 2012
    Date of Patent: July 25, 2017
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Dirk Kampmann, Christoph Meyer, Andreas Witzel
  • Patent number: 9661540
    Abstract: The invention relates to a method for handing over a mobile entity related call from a first call control node to a second call control node, wherein identification information of a switching point seized by the first call control node is contained in a handover request message, the second call control node selecting a switching point for the call to be handed over based on the identification information contained in the handover request message.
    Type: Grant
    Filed: October 27, 2008
    Date of Patent: May 23, 2017
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventor: Dirk Kampmann
  • Publication number: 20170126588
    Abstract: A technique for packet ingress processing and packet egress processing in an OpenFlow, OF, switch is presented. A method aspect directed to packet ingress processing comprises receiving a packet at an OF port. The packet is associated with one of multiple logical flow entities, such as logical ports, allocated to the OF port. In a next step, the logical flow entity associated with the received packet is determined. Then, metadata for the packet is tagged with an identifier for the logical flow entity associated with the packet. The tagging controls handling of the packet at egress processing. The packet handling, in turn, may include a selective dropping or passing of the packet.
    Type: Application
    Filed: July 25, 2014
    Publication date: May 4, 2017
    Inventors: Prashant ANAND, Mark HLADY, Dirk KAMPMANN, Jan SCHEUNRICH
  • Patent number: 9584574
    Abstract: The invention proposes several methods for codec handling. In specific, methods involving providing a supported codec list of a Call Control Server are described. A node receives information, whether a terminal supports a wideband codec, wherein the information is received in call set up signaling from the terminal of the subscriber. Furthermore, configuration information is retrieved, whether a Radio Access Node supports the wideband codec. Additionally, information is retrieved, whether a media gateway supports the wideband codec, wherein the information is either provided by the operator or retrieved from the media gateway (MGW1, MGW2, MGWx). The information is analyzed and in response to the analysis a supported codec list is provided. Furthermore, alternative embodiments and devices adapted for the methods are disclosed.
    Type: Grant
    Filed: March 2, 2006
    Date of Patent: February 28, 2017
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Andreas Witzel, Dirk Kampmann
  • Publication number: 20170048152
    Abstract: The present invention relates to a method, by a target node classification entity (100), to control an application of a service providing module (50) to a data packet flow, wherein the data packet flow is transmitted to a target node (310, 320) through a service network where the service providing module (50) applies a service to the data packet flow. The method comprises the following steps: First, from a flow classification entity (40), flow classification data about the data packet flow is received, the flow classification data including at least a flow classifier classifying the data packet flow, a flow identifier uniquely identifying the data packet flow, and a target node address to which the data packet flow is addressed. Then, the target node is classified based on the flow classifier contained in the received flow classification data, wherein a first service classifier is generated for the target node based on the flow classifier.
    Type: Application
    Filed: May 9, 2014
    Publication date: February 16, 2017
    Inventor: Dirk Kampmann
  • Publication number: 20160337913
    Abstract: Systems and methods related to performing an assignment and a handover in a radio communication network are provided. In one exemplary embodiment, a method performed by a Mobile Switching Center (MSC) of a radio communication network may include seizing resources for a Time Division Multiplexed (TDM) bearer and an Internet Protocol (IP) bearer for use on a terrestrial A-interface of the radio communication network for an activity to be performed by a target Base Station Controller (BSC) of the radio communication network.
    Type: Application
    Filed: July 29, 2016
    Publication date: November 17, 2016
    Inventors: Dirk Kampmann, Karl Hellwig, Paul Schliwa-Bertling
  • Patent number: 9497758
    Abstract: The Invention proposes a method for a Control Node (MSC) of a Core Network (CN) for late activation of a User Plane between a Radio Station (eNodeB, NodeB, BTS) and a control node (RNC, BSC) of a Radio Access Network (eUTRAN, UTRAN, URAN, GERAN, GRAN, RAN) of a call to be set-up. Furthermore, a method for a control node of a Radio Access Network for late activation of a User Plane between a Radio Station and a control node of a Radio Access of a call to be set-up is proposed MSC receives an indication that a call involving said MSC and a BSC of a RAN shall be set-up. MSC gains knowledge that said BSC is adapted for a late User Plane Activation. MSC instructs said BSC that the User Plane between the Radio Station and the BSC/RNC shall be reserved. Upon detecting that the User Plane of said call shall be through connected, MSC instructs the BSC to activate the reserved User Plane between Radio Station and BSC. In addition corresponding nodes are proposed.
    Type: Grant
    Filed: August 20, 2009
    Date of Patent: November 15, 2016
    Assignee: TELEFONAKTIEBOLAGET L M ERICSSON
    Inventors: Karl Hellwig, Dirk Kampmann, Majid Manosouri
  • Patent number: 9479558
    Abstract: The invention provides for a dynamic transcoder placement in case that transcoding functionality for codecs is offered in a TRAU associated to a Base Station Controller and/or a MGW selected for a call.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: October 25, 2016
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventor: Dirk Kampmann
  • Patent number: 9439109
    Abstract: A network entity for a radio communication network includes a processing unit which causes a first resource and a second resource for a terrestrial interface of the radio network to be seized, where the first resource is distinct and different from the second resource. The entity includes a network interface through which a handover request or an assignment request message identifying the first and the second resource is sent. A network entity for a radio communication network includes a network interface which receives a handover request message or an assignment request message identifying a first resource and a second resource. The first resource is distinct and different from the second resource. The entity includes a processing unit that selects one of the first and second resources, allocates a radio channel associated with the handover or assignment, selects a bearer for a terrestrial interface and seizes resources for the interface.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: September 6, 2016
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Dirk Kampmann, Karl Hellwig, Paul Schliwa-Bertling
  • Patent number: 9300566
    Abstract: The invention relates to a method for controlling, by a central control entity (200), a topology change in a network having a ring topology with a plurality of ring nodes (110-150) via which data packets of various data transfers are transmitted to their corresponding destination nodes. The method comprising the steps of receiving information about a topology change of the ring topology of the network, determining which of the data transfers are affected by the topology change, determining, for each of the affected data transfers, a new path through the network, determining new switching instructions for ring nodes (110-150) that are affected by the new paths determined for the affected data transfers, and transmitting the new switching instructions to the affected ring nodes (110-150).
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: March 29, 2016
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Dirk Kampmann, Andreas Witzel