Patents by Inventor Achim Luft

Achim Luft 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: 10750572
    Abstract: The invention provides a method of transferring resource control unit operational control functionality within a single frequency network, in which multiple transmission points transmit identical downlink data packets in a synchronized manner, from a first node to a second node, the method comprising receiving at a resource control unit a set of resource control information from at least one candidate node; determining using the resource control information a suitability of the at least one candidate node to be the second node; and initiating transfer of the resource control unit operational control functionality from the first node to the second node.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: August 18, 2020
    Assignee: IPCom GmbH & Co. KG
    Inventors: Andreas Schmidt, Achim Luft, Martin Hans, Maik Bienas
  • Publication number: 20200245143
    Abstract: The present invention provides a method of authenticating a transaction performed by a mobile communication user equipment, UE, device which has performed an authentication and key agreement procedure between the UE device and a mobile management entity of a visited network in order to establish a secure context between the UE device and the visited network, the method comprising sending a service validation message from the UE device to the visited network, the service validation message having been digitally signed by the UE device using an integrity protection key shared between the UE device and a home operator network; and forwarding the service validation message from the visited network to the home operator network.
    Type: Application
    Filed: August 3, 2018
    Publication date: July 30, 2020
    Inventors: Achim Luft, Martin Hans
  • Patent number: 10720968
    Abstract: A telecommunication system is provided comprising a Single Frequency Network, which enables the activation and respectively deactivation of base stations (SCn-SCn+3), each providing a radio cell such as a so-called Small Cell (SCn-SCn+3). Single Frequency Networks provide the advantage that no handover procedures are required for user equipment traversing several radio cells. The subject matter of the present invention provides means for a location based adaption of the transmission parameters for operating the Small Cells (SCn-SCn+3) in dependence of the location of the user equipment to be supplied.
    Type: Grant
    Filed: February 11, 2016
    Date of Patent: July 21, 2020
    Assignee: IPCom GmbH & Co. KG
    Inventors: Andreas Schmidt, Achim Luft, Martin Hans, Maik Bienas
  • Publication number: 20200136684
    Abstract: Embodiments have a master eNB with a control plane and optional data plane to user equipment and a secondary eNB with a data plane to the user equipment. The user equipment thus uses both the master eNB and the secondary eNB for data communications while receiving control information from only the master eNB. The master eNB and secondary eNB are connected with an X2 interface. When the secondary eNB desires to refresh its security key, it informs the master eNB using the X2 interface. The master eNB then uses its control plane with the user equipment to initiate a security key refresh for the secondary eNB.
    Type: Application
    Filed: December 26, 2019
    Publication date: April 30, 2020
    Inventors: Yujian Zhang, Youn Hyoung Heo, Achim Luft
  • Patent number: 10609680
    Abstract: Wireless communication devices may directly communicate within groups of wireless communication devices using Layer-2 communications to implement “push-to-talk” type applications. In one implementation, a method may include generating a floor request signaling message to take control of a communication channel for a group. After transmitting data relating to the communications, a floor release signaling message may be generated and transmitted a number of times.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: March 31, 2020
    Assignee: Apple Inc.
    Inventors: Alexandre Stojanovski, Muthaiah Venkatachalam, Maik Bienas, Achim Luft, Pingping Zong
  • Publication number: 20200077289
    Abstract: The invention provides a method of controlling a mobile communication network, the method comprising, an uplink controlling entity, in response to reception quality measurement reports sent by a plurality of reception points within the mobile communication network following a transmission of data by a user equipment device, the reception quality measurement reports being responsive to the reception of the transmission, configuring the reception points within the mobile communication network such that each of the multiple reception points is configured to exhibit a participation behaviour with respect to at least one of subsequent measurement reporting and payload reporting with regard to transmissions from the user equipment device, the participation behaviour being dependent on the reception quality measurement report.
    Type: Application
    Filed: August 29, 2019
    Publication date: March 5, 2020
    Inventors: Martin Hans, Maik Bienas, Andreas Schmidt, Achim Luft
  • Patent number: 10523286
    Abstract: Embodiments have a master eNB with a control plane and optional data plane to user equipment and a secondary eNB with a data plane to the user equipment. The user equipment thus uses both the master eNB and the secondary eNB for data communications while receiving control information from only the master eNB. The master eNB and secondary eNB are connected with an X2 interface. When the secondary eNB desires to refresh its security key, it informs the master eNB using the X2 interface. The master eNB then uses its control plane with the user equipment to initiate a security key refresh for the secondary eNB.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: December 31, 2019
    Assignee: Intel IP Corporation
    Inventors: Yujian Zhang, Youn Hyoung Heo, Achim Luft
  • Patent number: 10440601
    Abstract: The invention provides a method of controlling a mobile communication network, the method comprising, an uplink controlling entity, in response to reception quality measurement reports sent by a plurality of reception points within the mobile communication network following a transmission of data by a user equipment device, the reception quality measurement reports being responsive to the reception of the transmission, configuring the reception points within the mobile communication network such that each of the multiple reception points is configured to exhibit a participation behavior with respect to at least one of subsequent measurement reporting and payload reporting with regard to transmissions from the user equipment device, the participation behavior being dependent on the reception quality measurement report.
    Type: Grant
    Filed: November 24, 2016
    Date of Patent: October 8, 2019
    Assignee: IPCom GmbH & Co. KG
    Inventors: Martin Hans, Maik Bienas, Andreas Schmidt, Achim Luft
  • Publication number: 20190281127
    Abstract: The present invention provides a method for a mobile communication device to communicate with a user device over a short range radio interface connection, the mobile communication device acting as a relaying node for enabling a connection of the user device to a core network, the method comprising negotiating capabilities for connecting the user device to the mobile communication device and for operating the user device using the mobile communication device as the relaying node.
    Type: Application
    Filed: November 3, 2017
    Publication date: September 12, 2019
    Inventors: Andreas Schmidt, Achim Luft, Martin Hans
  • Publication number: 20190274110
    Abstract: The present invention provides a method for enabling a wearable device connected to a user equipment device to be identified and authenticated within a mobile communications network, the method comprising attaching both the user equipment device and the wearable device to the mobile communications network by means of a single registration request communicated by the user equipment device to the mobile communications network.
    Type: Application
    Filed: July 26, 2017
    Publication date: September 5, 2019
    Inventors: Achim Luft, Martin Hans
  • Publication number: 20190268766
    Abstract: The present invention provides a method of allowing a wearable device connected to a user equipment device to communicate with a mobile communications network, wherein the user equipment device transmits non-access stratum messages to the mobile communications network for performance of an identification and an authentication of the wearable device in the mobile communications network and monitors transmissions sent by the mobile communications network in paging occasions, wherein paging occasions for paging messages intended for the wearable device are time aligned with paging occasions for paging messages intended for the user equipment device.
    Type: Application
    Filed: July 26, 2017
    Publication date: August 29, 2019
    Inventors: Achim Luft, Martin Hans
  • Patent number: 10327163
    Abstract: Embodiments of a UE and methods for D2D communication are generally described herein. The UE may transmit, as part of an in-network communication session, a D2D discovery status message. The D2D discovery status message may indicate an initiation or termination of a D2D discovery operation at the UE and may indicate if the UE is announcing or monitoring as part of the D2D discovery operation. The D2D discovery operation may be at least partly for configuring a D2D communication session between the UE and one or more other UEs. The UE may transmit, as part of the D2D discovery operation, a D2D discovery signal for reception at one or more other UEs. The UE may transmit and receive D2D packets over a direct link to a second UE as part of the D2D communication session.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: June 18, 2019
    Assignee: Intel IP Corporation
    Inventors: Youn Hyoung Heo, Pingping Zong, Alexandre Saso Stojanovski, Achim Luft
  • Publication number: 20190089425
    Abstract: Embodiments have a master eNB with a control plane and optional data plane to user equipment and a secondary eNB with a data plane to the user equipment. The user equipment thus uses both the master eNB and the secondary eNB for data communications while receiving control information from only the master eNB. The master eNB and secondary eNB are connected with an X2 interface. When the secondary eNB desires to refresh its security key, it informs the master eNB using the X2 interface. The master eNB then uses its control plane with the user equipment to initiate a security key refresh for the secondary eNB.
    Type: Application
    Filed: November 20, 2018
    Publication date: March 21, 2019
    Inventors: Yujian Zhang, Youn Hyoung Heo, Achim Luft
  • Patent number: 10206102
    Abstract: Methods and apparatus that provide user access control within wireless networks such as those having both fixed and portable nodes. In one embodiment, the network comprises a 3G cellular network or Interworking WLAN (iWLAN), and the portable nodes comprise Home Node B (HNB) base stations. The HNB is configured to authenticate new users, and provide network access while still maintaining user privacy. The portable nodes also may operate in a number of different operating modes which provide different functional control over user access. In one variant, an easy-to-use owner-assigned ID based access control mechanism with a reliable unambiguous user ID is utilized. Methods for providing access control across differing network architectures and protocols, such the aforementioned iWLAN, and business methods, are also described.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: February 12, 2019
    Assignee: APPLE INC.
    Inventors: Achim Luft, Maik Bienas, Hyung-Nam Choi, Martin Hans
  • Patent number: 10136394
    Abstract: Methods and apparatus that reduce network management overhead required for the operation of wireless femtocells. In one aspect of the invention, a central network entity governs the simultaneous operation of several femtocells by specifying modes of operation, and operational parameters for one or more of the femtocells. In one embodiment, at least one of the specified modes of operation directs a femtocell to operate in a substantially autonomous manner within the network-defined operational parameters. The network-defined constraints are provided to the femtocell for example, responsive to a successful registration attempt.
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: November 20, 2018
    Assignee: APPLE INC.
    Inventors: Hyung-Nam Choi, Maik Bienas, Achim Luft
  • Publication number: 20180324617
    Abstract: The present invention provides a method for a user equipment, UE, device to perform measurements in order to assess network performance, preferably minimization of drive test, MDT, measurements, the method comprising receiving configuration information at the UE, the configuration information providing information for controlling service specific measurements and for controlling tagging of measurement reports by the UE with at least one of a service flow identifier and an indication that the measurement relates to one of a single service data flow and a multiplicity of service data flows.
    Type: Application
    Filed: November 4, 2016
    Publication date: November 8, 2018
    Inventors: Andreas Schmidt, Achim Luft, Maik Bienas, Martin Hans
  • Publication number: 20180324622
    Abstract: The invention provides a method of controlling a mobile communication network, the method comprising, an uplink controlling entity, in response to reception quality measurement reports sent by a plurality of reception points within the mobile communication network following a transmission of data by a user equipment device, the reception quality measurement reports being responsive to the reception of the transmission, configuring the reception points within the mobile communication network such that each of the multiple reception points is configured to exhibit a participation behaviour with respect to at least one of subsequent measurement reporting and payload reporting with regard to transmissions from the user equipment device, the participation behaviour being dependent on the reception quality measurement report.
    Type: Application
    Filed: November 24, 2016
    Publication date: November 8, 2018
    Inventors: Martin Hans, Maik Bienas, Andreas Schmidt, Achim Luft
  • Publication number: 20180317108
    Abstract: The present invention provides a method of performing quality of service measurements on a packet data communication between a user equipment device and a remote server, wherein a packet data network gateway router performs latency measurements on routed data packets belonging to a specific session, correlating packets routed in an upward direction and packets routed in a downward direction, wherein the latency measurements are performed on a first segment between the user equipment device and the packet data network gateway and on a second segment between the packet data network gateway and the remote server without adding data to the routed data packets.
    Type: Application
    Filed: November 4, 2016
    Publication date: November 1, 2018
    Inventors: Andreas Schmidt, Achim Luft, Martin Hans
  • Publication number: 20180288643
    Abstract: The invention provides a method for a user equipment, UE, operating in an orthogonal frequency division multiplexed, OFDM, communication system to signal that it is capable of operating at a radio bandwidth other than one predefined according to an OFDM communication standard for the system, the method comprising: the UE sending a capability information message to a base station, the message including an information field which indicates whether the UE supports flexible bandwidth operation or not, wherein the flexible bandwidth operation is at least one of an increase and a decrease in a number of subcarriers to be used by the UE within a frequency band being used concurrently for communication with the base station by other UEs over the bandwidth defined according to the OFDM communication standard.
    Type: Application
    Filed: October 12, 2016
    Publication date: October 4, 2018
    Inventors: Andreas Schmidt, Achim Luft, Maik Bienas
  • Patent number: 10085299
    Abstract: In embodiments, apparatuses, methods, and storage media may be described for secure broadcast of discovery information of a discoverable user equipment (UE) in a device-to-device (D2D) network. Specifically, the discovery information may be encrypted with a first encryption key, and then the result of that encryption may be re-encrypted with a second encryption key. The dual-encrypted discovery information may then be broadcast in a cell. Upon reception of the dual-encrypted discovery information, a discovering UE with the appropriate decryption keys may decrypt the message to identify the discovery information. Based on the decrypted discovery information, the discovering UE may identify the presence of the discoverable UE.
    Type: Grant
    Filed: June 6, 2014
    Date of Patent: September 25, 2018
    Assignee: Intel Corporation
    Inventors: Achim Luft, Muthaiah Venkatachalam