Patents by Inventor David Navratil

David Navratil 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: 11343665
    Abstract: Methods and apparatus, including computer program products, are provided for V2X server discovery. In some example embodiments, there may be provided a method. The method may include receiving, by a user equipment, an indication of an identity of a local server configured to provide, in the serving public land mobile network, information regarding a vehicle-based service, when the user equipment enters a region of the serving public land mobile network; and discovering, by the user equipment, the local server based on the received indication of the identity. Related systems, methods, and articles of manufacture are also disclosed.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: May 24, 2022
    Assignee: Nokia Technologies Oy
    Inventors: Curt Wong, Devaki Chandramouli, Xiang Xu, David Navratil
  • Publication number: 20220159758
    Abstract: Apparatuses and methods for data duplication are disclosed. Information on one or more user terminals are received by an apparatus from a base station serving the one or more user terminals located in a same host unit. Received information is compared to information of the user terminals the apparatus is serving. Based on the comparison, it is determined that at least some of the one or more user terminals served by the apparatus are located in the same host; and the at least some of the one or more user terminals are scheduled to utilize different radio resources that provide largest frequency or time diversity available between the at least some of the one or more user terminal.
    Type: Application
    Filed: March 4, 2019
    Publication date: May 19, 2022
    Inventors: Daniela LASELVA, David NAVRATIL
  • Publication number: 20220151005
    Abstract: Methods, apparatuses, and computer program products are disclosed for implementing recovery from a communication failure. A method includes receiving, by a first user equipment, an indication that a second user equipment has experienced a failure, where the first user equipment and the second user equipment are part of a same device, and where the first user equipment is configured with a first primary reliability group and where the second user equipment is configured with a second primary reliability group; based upon the indication, the first user equipment transmitting to a network equipment a first signal to activate a secondary reliability group for the first user equipment; and receiving, by the first user equipment, a second signal to use the secondary reliability group, where the second signal is at least partially based upon the first signal transmitted from the first user equipment.
    Type: Application
    Filed: January 21, 2020
    Publication date: May 12, 2022
    Inventors: Jani Moilanen, David Navrátil, Ling Yu, Vinh Van Phan, Devaki Chandramouli
  • Patent number: 11317249
    Abstract: Systems, methods, apparatuses, and computer program products for supporting local MBMS distribution are provided. One method includes receiving, by a broadcast multicast service center (BM-SC), an activate multimedia broadcast multicast service (MBMS) bearer request message to initiate an activate multimedia broadcast multicast service (MBMS) bearer request procedure. The activate MBMS bearer request message comprises at least one of information on local MBMS distribution received from a local MBMS entity (LME), or a destination area, or a destination area and an indication that preferred delivery is via local distribution. The method may further include determining whether local distribution path will be used based on at least one of information received in the activate MBMS bearer request message, or stored information about local MBMS entities.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: April 26, 2022
    Assignee: NOKIA SOLUTIONS AND NETWORKS OY
    Inventors: Xiang Xu, David Navratil, Curt Wong
  • Publication number: 20220104292
    Abstract: A method, apparatus and computer program product establish at least two redundant protocol data unit sessions to at least one user equipment. The at least two redundant protocol data unit sessions are established based on dual connectivity in a radio access network. The method, apparatus and computer program product collect network status information related to the at least two redundant protocol data unit sessions. The method, apparatus and computer program product configure a set of protocol data unit session switching patterns for the at least two redundant protocol data unit sessions based on the real-time network status information.
    Type: Application
    Filed: February 13, 2020
    Publication date: March 31, 2022
    Inventors: Ling Yu, Vinh Van Phan, Jani Moilanen, David Navratil, Devaki Chandramouli
  • Patent number: 11259360
    Abstract: A technique includes transmitting a request for the delivery of multicast data; receiving the multicast data via a unicast data radio bearer or a multicast data radio bearer, wherein the user device is located in a first cell; receiving, by the user device from the base station, a connection suspend message, wherein the connection suspend message includes: information describing a radio access network (RAN) multicast area (RMA) for the delivery of the multicast data via a multicast data radio bearer, and a group identifier associated with the multicast data, wherein the RMA includes a list of one or more cells that has been updated by the base station to include the first cell where the user device is located; entering, by the user device, a low activity state in response to the connection suspend message; and, receiving, by the user device, the multicast data via the multicast data radio bearer.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: February 22, 2022
    Assignee: Nokia Technologies Oy
    Inventors: Mikko Saily, David Navrátil, Athul Prasad
  • Patent number: 11234214
    Abstract: Embodiments of the present disclosure provide methods, apparatus and computer program products for providing broadcast/multicast services.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: January 25, 2022
    Assignee: NOKIA TECHNOLOGIES OY
    Inventors: Xiang Xu, Devaki Chandramouli, David Navratil, Curt Wong
  • Publication number: 20220006563
    Abstract: A method, apparatus and computer program product receive an application flow comprising a source flow and a supplementary flow from a core network. The method, apparatus and computer program product receive a flow payload indication from the core network. The method, apparatus and computer program product determine whether the application flow is to be transmitted via a unicast transmission or a multicast transmission. The method, apparatus and computer program product determine whether the supplementary flow is droppable based on the flow payload indication and whether the application flow is to be transmitted via a unicast transmission or a multicast transmission. The method, apparatus and computer program product cause only the source flow to be transmitted in a circumstance where the supplementary flow is droppable.
    Type: Application
    Filed: November 12, 2018
    Publication date: January 6, 2022
    Inventors: David Navrátil, Athul Prasad, Mikko Säily, Andreas Maeder
  • Publication number: 20210378053
    Abstract: A technique includes transmitting a request for the delivery of multicast data; receiving the multicast data via a unicast data radio bearer or a multicast data radio bearer, wherein the user device is located in a first cell; receiving, by the user device from the base station, a connection suspend message, wherein the connection suspend message includes: information describing a radio access network (RAN) multicast area (RMA) for the delivery of the multicast data via a multicast data radio bearer, and a group identifier associated with the multicast data, wherein the RMA includes a list of one or more cells that has been updated by the base station to include the first cell where the user device is located; entering, by the user device, a low activity state in response to the connection suspend message; and, receiving, by the user device, the multicast data via the multicast data radio bearer.
    Type: Application
    Filed: February 26, 2018
    Publication date: December 2, 2021
    Inventors: Mikko SAILY, David NAVRÁTIL, Athul PRASAD
  • Publication number: 20210321228
    Abstract: Various communication systems may benefit from network location reporting. For example, such reporting may be beneficial in the establishment of a multimedia broadcast/multicast service bearer for media traffic delivery from a group communication service application server or other similar device or system. A method can include reporting at least a first set of user equipment location information and at least a second set of user equipment location information from the user equipment to at least one network node for broadcast bearer management. The first set of user equipment location information can include a serving cell identity of the user equipment. The second set of user equipment location information can include at least one identity of at least one network service area for media broadcasting.
    Type: Application
    Filed: June 25, 2021
    Publication date: October 14, 2021
    Inventors: Devaki CHANDRAMOULI, David NAVRATIL, Rainer LIEBHART
  • Patent number: 11116024
    Abstract: An apparatus for use by a packet duplication control element or function, the apparatus including processing circuitry, and memory for storing instructions to be executed by the processing circuitry, wherein the memory and the instructions are configured to, with the processing circuitry, cause the apparatus at least: to receive assistance information indicating communication conditions of at least one communication link between a communication element and at least two communication network access points, to process the assistance information for preparing a packet duplication control, to generate transmission control information on the basis of the result of the processing of the assistance information, the transmission control information indicating settings for a packet duplication process in the established multi-connectivity communication, and to send the transmission control information to at least one transmission control element or function being involved in the packet duplication process in the estab
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: September 7, 2021
    Assignee: Nokia Technologies Oy
    Inventors: Ling Yu, David Navratil, Vinh Van Phan, Zexian Li
  • Patent number: 11071089
    Abstract: Various communication systems may benefit from a dynamic streaming service. For example, certain streaming services may benefit from an improvement in the switching between broadcast delivery and unicast delivery for a streaming service in a cellular system. A method includes receiving information about a streaming service. The method also includes determining by a network entity in a radio access network whether to deliver data for the streaming service via multimedia broadcast or unicast based on the information and predetermined criteria for evaluating the information. In addition, the method includes triggering a sending of the data via the multimedia broadcast or the unicast.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: July 20, 2021
    Assignee: NOKIA SOLUTIONS AND NETWORKS OY
    Inventors: Devaki Chandramouli, David Navratil, Curt Wong, Rainer Liebhart
  • Patent number: 11051132
    Abstract: Various communication systems may benefit from network location reporting. For example, such reporting may be beneficial in the establishment of a multimedia broadcast/multicast service bearer for media traffic delivery from a group communication service application server or other similar device or system. A method can include reporting at least a first set of user equipment location information and at least a second set of user equipment location information from the user equipment to at least one network node for broadcast bearer management. The first set of user equipment location information can include a serving cell identity of the user equipment. The second set of user equipment location information can include at least one identity of at least one network service area for media broadcasting.
    Type: Grant
    Filed: April 7, 2015
    Date of Patent: June 29, 2021
    Assignee: NOKIA SOLUTIONS AND NETWORKS OY
    Inventors: Devaki Chandramouli, David Navratil, Rainer Liebhart
  • Publication number: 20210185504
    Abstract: Methods and apparatus, including computer program products, are provided for V2X server discovery. In some example embodiments, there may be provided a method. The method may include receiving, by a user equipment, an indication of an identity of a local server configured to provide, in the serving public land mobile network, information regarding a vehicle-based service, when the user equipment enters a region of the serving public land mobile network; and discovering, by the user equipment, the local server based on the received indication of the identity. Related systems, methods, and articles of manufacture are also disclosed.
    Type: Application
    Filed: March 31, 2016
    Publication date: June 17, 2021
    Inventors: Curt WONG, Devaki CHANDRAMOULI, Steven XU, David NAVRATIL
  • Publication number: 20210168570
    Abstract: In accordance with some embodiments, a method may include receiving, by a first network entity, at least one user equipment context modification request from a second network entity. The method may further include configuring, by the first network entity, at least one of one or more unicast channels and one or more multicast channels. The method may further include receiving, by the first network entity, multicast data. The method may further include selecting, by the first network entity, at least one of one or more multicast channels and one or more unicast channels to transmit multicast data.
    Type: Application
    Filed: August 13, 2019
    Publication date: June 3, 2021
    Inventors: David NAVRATIL, Athul PRASAD, Mikko SAILY, Andreas MAEDER
  • Patent number: 10973071
    Abstract: There is provided a method, comprising: at least partially controlling, by a network node, transmissions in a plural of radio access technologies, RATs, each RAT being capable of providing at least one communication link to a same user equipment; deciding to transmit a packet to the user equipment at least via a first RAT; requesting a transmission of the packet additionally via at least one other RAT; determining capability information corresponding to the requested transmission of the packet via the at least one other RAT; determining transmission setup for the packet to be transmitted via the first RAT based on the capability information, wherein the transmission set-up defines at least the number of transmissions to be performed for the packet by the first RAT; and instructing the transmission of the packet via the first RAT according to the determined transmission level.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: April 6, 2021
    Assignee: Nokia Solutions and Networks Oy
    Inventors: Vinh Van Phan, Zexian Li, Ling Yu, David Navratil
  • Publication number: 20210076164
    Abstract: An apparatus in a network function comprising at least one processor and at least one memory including computer code for one or more programs, the at least one memory and the computer code configured, with the at least one processor, to cause the apparatus at least to: determine that a protocol data unit session for a user equipment is to be updated to add or modify multicast information; and provide multicast context information associated with said user equipment which causes said user equipment to receive multicast data associated with said multicast context information.
    Type: Application
    Filed: December 12, 2017
    Publication date: March 11, 2021
    Inventors: David Navratil, Pekka Korja, Athul Prasad, Mikko Säily
  • Publication number: 20210076166
    Abstract: An apparatus comprising at least one processor and at least one memory including computer code for one or more programs, the at least one memory and the computer code configured, with the at least one processor, to cause the apparatus at least to: receive a message from at least one user equipment requesting to join a multicasting/broadcasting group; receive data for multicasting/broadcasting from a data network; generate multicasting/broadcasting session information for the data; route the data based on the multicasting/broadcasting session to at least one access point, wherein the access point wirelessly communicates the data to user equipment based on the multicasting/broadcasting session information.
    Type: Application
    Filed: December 12, 2017
    Publication date: March 11, 2021
    Inventors: David Navratil, Pekka Korja, Athul Prasad, Mikko Säily
  • Publication number: 20200329347
    Abstract: Multicast and/or broadcast service may be provided to one or more radio access networks, such as using one or more multicast broadcast gateways and/or one or more nodes, such as coordination function nodes. A multicast broadcast gateway may be connected to a node via a control plane interface. The node may be associated with a base station configured to provide one or more of multicast transmissions or broadcast transmissions to user devices from a broadcast multicast core network. The multicast broadcast gateway may also be connected to the base station via a user plane interface. The multicast broadcast gateway may send, to the node and via the control plane interface, one or more control signals. The multicast broadcast gateway may send, to the base station and via the user plane interface, one or more user signals. The multicast broadcast gateway and/or node may be used to setup, update, and/or stop multicast and/or broadcast sessions.
    Type: Application
    Filed: November 16, 2018
    Publication date: October 15, 2020
    Inventors: Athul PRASAD, David NAVRATIL, Mikko SAILY
  • Publication number: 20200304958
    Abstract: Systems, methods, apparatuses, and computer program products for supporting local MBMS distribution are provided. One method includes receiving, by a broadcast multicast service center (BM-SC), an activate multimedia broadcast multicast service (MBMS) bearer request message to initiate an activate multimedia broadcast multicast service (MBMS) bearer request procedure. The activate MBMS bearer request message comprises at least one of information on local MBMS distribution received from a local MBMS entity (LME), or a destination area, or a destination area and an indication that preferred delivery is via local distribution. The method may further include determining whether local distribution path will be used based on at least one of information received in the activate MBMS bearer request message, or stored information about local MBMS entities.
    Type: Application
    Filed: March 31, 2016
    Publication date: September 24, 2020
    Inventors: Xiang XU, David NAVRATIL, Curt WONG