Patents by Inventor Per Skillermark

Per Skillermark 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).

  • Publication number: 20240056282
    Abstract: Embodiments described herein relate to methods and apparatuses for optimizing interframe space in time division duplexing communication between a first wireless device and a second wireless device. A method in the first wireless device comprises receiving a first packet from the second wireless device; selecting an interframe space, IFS, duration from a plurality of possible IFS durations; and transmitting a second packet to the second wireless device when the selected IFS duration has elapsed after receipt of the first packet.
    Type: Application
    Filed: February 25, 2022
    Publication date: February 15, 2024
    Inventors: Leif Wilhelmsson, Per Skillermark
  • Patent number: 11750411
    Abstract: Embodiments include methods for a gateway device to selectively forward messages in a wireless mesh network. Such methods include receiving, over one of a plurality of network interfaces of the gateway device, a message published to a group address or a virtual address and retrieving, from a database accessible by the gateway device, unicast addresses of all communication devices identified by the group address or the virtual address. Such methods include, based on determining that all communication devices addressed by the retrieved unicast addresses are serviced by the gateway device, sending the received message on all network interfaces that correspond to the communication devices addressed by the retrieved unicast addresses; and based on determining that not all communication devices addressed by the retrieved unicast addresses are serviced by the gateway device, sending the received message on all network interfaces except for the network interface over which the message was received.
    Type: Grant
    Filed: December 12, 2022
    Date of Patent: September 5, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Per Skillermark, Per Elmdahl, Thomas Rimhagen
  • Publication number: 20230188952
    Abstract: A method of a transmitter node is disclosed, for conveying a message selected from a collection of messages to a receiver node. The method comprises mapping the message to a current codeword based on a previous codeword and/or based on a counter value, and transmitting the current codeword to convey the message to the receiver node. A method of a receiver node is also disclosed, for detecting a message selected from a collection of messages by a transmitter node. The method comprises mapping a candidate message from the collection of messages to a candidate codeword based on a previous codeword and/or based on a counter value, receiving a current codeword from the transmitter node, and detecting the candidate message when the current codeword coincides with the candidate codeword. Corresponding apparatuses, wireless communication device, nodes and computer program product and related methods are also disclosed.
    Type: Application
    Filed: May 18, 2020
    Publication date: June 15, 2023
    Inventors: Per Elmdahl, Per Skillermark
  • Publication number: 20230106171
    Abstract: Embodiments include methods for a gateway device to selectively forward messages in a wireless mesh network. Such methods include receiving, over one of a plurality of network interfaces of the gateway device, a message published to a group address or a virtual address and retrieving, from a database accessible by the gateway device, unicast addresses of all communication devices identified by the group address or the virtual address. Such methods include, based on determining that all communication devices addressed by the retrieved unicast addresses are serviced by the gateway device, sending the received message on all network interfaces that correspond to the communication devices addressed by the retrieved unicast addresses; and based on determining that not all communication devices addressed by the retrieved unicast addresses are serviced by the gateway device, sending the received message on all network interfaces except for the network interface over which the message was received.
    Type: Application
    Filed: December 12, 2022
    Publication date: April 6, 2023
    Inventors: Per Skillermark, Per Elmdahl, Thomas Rimhagen
  • Patent number: 11617121
    Abstract: A method and apparatus for relaying messages in a mesh network.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: March 28, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Rocco Di Taranto, Magnus Åström, Guido Roland Hiertz, Per Skillermark
  • Patent number: 11617224
    Abstract: A gateway (1), arranged for providing cloud connectivity to a network of communicatively interconnected network nodes. The gateway (1) comprises a backend function (2)and a plurality of physical frontend devices (3), for deployment in the network. The frontend devices (3) communicatively connect(4)to the backend function (2) for exchanging messages between a network node and the backend function (2). The backend function (2) is common to the plurality of frontend devices (3) and arranged in a at least one server of a plurality of operatively connected servers, that may form part of the cloud, thereby providing for ‘cloud processing’ or ‘virtual processing’ of the messages for exchange thereof with the cloud. The physical frontend devices (3) may be designed to comprise transceiver functionality.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: March 28, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Per Skillermark, Thomas Rimhagen, Jingcheng Zhang
  • Patent number: 11576022
    Abstract: Embodiments herein relate to e.g. a method performed by a network node (10) for handling communication of data in a Bluetooth Low Energy (BLE) mesh network (1). The network node obtains a neighbor table, wherein the neighbor table is based on messages received from different network nodes; and selects an association between network nodes in the BLE mesh network (1) taking the neighbor table into account.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: February 7, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Jingcheng Zhang, Piergiuseppe Di Marco, Per Elmdahl, Thomas Rimhagen, Wei Shen, Per Skillermark
  • Patent number: 11552815
    Abstract: A gateway device and a configuration client for supporting selective forwarding of messages published to a group address or a virtual address in a wireless mesh network of communicatively coupled communication devices, such as a Bluetooth Mesh system. The configuration client maintains a mapping between unicast addresses of communication devices and group and virtual addresses in the network. The gateway device receives, from the configuration client, unicast addresses of those communication devices collectively identified by the group or virtual address in a received message. When the retrieved unicast addresses are all serviced by the gateway device, the message is transmitted by the gateway device on all interfaces corresponding to the communication devices addressed by the retrieved unicast addresses. When the retrieved unicast addresses are not all serviced by the gateway device, the message is transmitted by the gateway device on all except one of the interfaces.
    Type: Grant
    Filed: March 31, 2021
    Date of Patent: January 10, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Per Skillermark, Per Elmdahl, Thomas Rimhagen
  • Patent number: 11490400
    Abstract: A method by an end node (102) operating in a Mesh communications network (100) is described herein. The end node (102) monitors (601), a first channel, for transmissions of first information from one or more relay nodes (103) operating in the network. The first information indicates transmission, from the one or more relay nodes (103), of second information on a second channel associated with the first channel. The second information indicates transmission, from the one or more relay nodes (103), of third information on a third channel. The third channel is associated with the second channel and the first channel. The end node (102) then determines (603), based on the second information, time periods during which no transmission of the third information is predicted to be performed by the one or more relay nodes (103) on the third channel. The end node (102) then schedules (604) a transmission of fourth information in a fourth channel during the determined time periods.
    Type: Grant
    Filed: November 14, 2018
    Date of Patent: November 1, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Per Skillermark, Pontus Arvidson, Roman Chirikov, Piergiuseppe di Marco
  • Patent number: 11477821
    Abstract: A method performed by a station for enabling an Uplink, UL, transmission to an access point in a wireless communications network is provided. The station determines a UL transmission rank for an UL transmission to the access point. Then, the station transmits, to the access point, a message on a contention-based transmission resource in the wireless communications network comprising information indicating the determined UL transmission rank. A station for enabling an UL transmission to an access point in a wireless communications network is also provided. Furthermore, an access point and a method performed therein for enabling an UL transmission from a station in a wireless communications network are also provided.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: October 18, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Gabor Fodor, Per Skillermark, Osama Al-Saadeh
  • Publication number: 20220303745
    Abstract: A method and device for path discovery in a Bluetooth® mesh network.
    Type: Application
    Filed: September 9, 2019
    Publication date: September 22, 2022
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Pontus ARVIDSON, Per SKILLERMARK, Piergiuseppe DI MARCO
  • Publication number: 20220232449
    Abstract: A method of waking up a mesh node in a wireless mesh network, wherein said mesh node comprises a main receiver and a wakeup receiver, and wherein said method comprises the steps of receiving, by said wakeup receiver of said mesh node, a wake up signal message, wherein said wake up signal message comprises context information which is related to a path between a source mesh node and a destination mesh node corresponding to said wake up signal message, determining, by said wakeup receiver of said mesh node, that said context information is applicable for said mesh node, activating, by said wakeup receiver of said mesh node, said main receiver of said mesh node for subsequently receiving a data message.
    Type: Application
    Filed: June 11, 2019
    Publication date: July 21, 2022
    Inventors: Piergiuseppe Di Marco, Per Skillermark, Leif Wilhelmsson, Magnus L. Olsson
  • Publication number: 20220150831
    Abstract: A method performed by a low-power node (LPN) in a wireless mesh network, wherein the LPN comprises a main receiver and a wakeup receiver, and wherein the method comprises: performing the following first operations in response to an event trigger: activating the wakeup receiver while maintaining the main receiver in an inactive state, and sending a polling message to a second node in the wireless mesh network; for a predetermined duration, determining whether a wakeup signal has been received from the second node via the wakeup receiver; and performing a plurality of second operations based on determining that the wakeup signal has been received, the second operations including: activating the main receiver, and receiving, from the second node via the main receiver, a response to the polling message.
    Type: Application
    Filed: June 11, 2019
    Publication date: May 12, 2022
    Inventors: Piergiuseppe Di Marco, Per Skillermark
  • Patent number: 11245612
    Abstract: A node operable in a mesh communication network and a method performed thereby for routing a received packet towards a destination are provided. The method includes receiving a packet addressed to a destination node in the mesh network, the packet including information related to address of source node, last hop address, address of destination node, and a hop counter. The method further includes determining whether the destination address is included in a routing table of the node in the mesh communication network. When the destination address is included in a routing table, the received packet is forwarded according to the routing table; or when the destination address is not included in a routing table, the received packet is flooded by broadcasting it in the mesh communication network.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: February 8, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Roman Chirikov, Per Skillermark
  • Patent number: 11234122
    Abstract: There is provided a method and corresponding arrangements and network nodes/devices for enabling packet forwarding in a wireless mesh network comprising a plurality of nodes. Basically, the method comprises conforming, for transmission of the same network layer information from at least two different nodes, the corresponding over-the-air packets to be node-independent, and scheduling the conformed over-the-air packets for synchronized and simultaneous transmission from the at least two different nodes.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: January 25, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Per Skillermark, Roman Chirikov, Piergiuseppe Di Marco
  • Publication number: 20210392564
    Abstract: A method of supporting establishment of a path from a source node to a destination node in wireless mesh network, said path comprising at least one intermediate node, said method comprising the steps of receiving, by an intermediate node, a synchronous notification message, from a neighbouring node, for synchronizing said intermediary node with said neighbouring node, and establishing, by said intermediate node, in response to said receipt of said synchronous notification message, a reciprocal path between said intermediate node and said neighbouring node, wherein said reciprocal path is used in a path between said source node and said destination node. A corresponding node device arranged for performing the method is also presented herein.
    Type: Application
    Filed: December 14, 2018
    Publication date: December 16, 2021
    Inventors: Pontus ARVIDSON, Per Skillermark
  • Patent number: 11129052
    Abstract: Embodiments herein relate to a method performed by a radio network node (12) for handling communication of data to a wireless device (10) in a wireless communication network (1). The radio network node (12) determines to transmit data associated with a first radio access technology, RAT, using a second RAT when a criterion is fulfilled, and triggers a transmission of the data to the wireless device (10) using the second RAT.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: September 21, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Pontus Arvidson, Håkan Andersson, Per Skillermark
  • Patent number: 11115320
    Abstract: A node (100) is configured for use in a communication network. The node (100) is configured to obtain a message with a source address and a destination address. The node (100) is also configured to determine whether the message is a type of message that is sent in response to a different message routed from the destination address to the source address, and whether a forward route (16) from the destination address to the source address has been established. The node (100) is also configured to selectively transmit the message on a backward route (18) that is the reverse of the forward route (16), depending on the determining.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: September 7, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Piergiuseppe di Marco, Per Skillermark, Jingcheng Zhang
  • Publication number: 20210218588
    Abstract: A gateway device and a configuration client for supporting selective forwarding of messages published to a group address or a virtual address in a wireless mesh network of communicatively coupled communication devices, such as a Bluetooth Mesh system. The configuration client maintains a mapping between unicast addresses of communication devices and group and virtual addresses in the network. The gateway device receives, from the configuration client, unicast addresses of those communication devices collectively identified by the group or virtual address in a received message. When the retrieved unicast addresses are all serviced by the gateway device, the message is transmitted by the gateway device on all interfaces corresponding to the communication devices addressed by the retrieved unicast addresses. When the retrieved unicast addresses are not all serviced by the gateway device, the message is transmitted by the gateway device on all except one of the interfaces.
    Type: Application
    Filed: March 31, 2021
    Publication date: July 15, 2021
    Inventors: Per Skillermark, Per Elmdahl, Thomas Rimhagen
  • Patent number: 11012250
    Abstract: A gateway device and a configuration client for supporting selective forwarding of messages published to a group address or a virtual address in a wireless mesh network of communicatively coupled communication devices, such as a Bluetooth Mesh system. The configuration client maintains a mapping between unicast addresses of communication devices and group and virtual addresses in the network. At receipt of a message including a group or virtual address, the gateway device retrieves, from the configuration client, the unicast addresses of those communication devices collectively identified by the group or virtual address in the received message. If the retrieved unicast addresses are all serviced by the gateway device, the message is transmitted by the gateway device on all interfaces corresponding to the communication devices addressed by the retrieved unicast addresses.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: May 18, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Per Skillermark, Per Elmdahl, Thomas Rimhagen