Patents by Inventor Erik Dahlman

Erik Dahlman 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).

  • Atmospheric channel-driven interference handling
    Patent number: 12295021
    Abstract: There is disclosed a method of operating a network node in a radio access network. The method includes operating on a carrier based on a received BS-to-BS interference indication. The disclosure also pertains to related devices and methods.
    Type: Grant
    Filed: December 7, 2023
    Date of Patent: May 6, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Robert Baldemair, Stefan Parkvall, Erik Dahlman, Sorour Falahati
  • Random-Access Procedure
    Publication number: 20250142614
    Abstract: A method in a network node for managing random-access procedures with a plurality of wireless devices. The method comprising transmitting an indication of a modulation format to one or more of the plurality of wireless devices to configure the modulation format for a random access message 3 transmission from the one or more wireless devices.
    Type: Application
    Filed: November 13, 2024
    Publication date: May 1, 2025
    Inventors: Henrik SAHLIN, Robert BALDEMAIR, Erik DAHLMAN, Stefan PARKVALL
  • Allocation of acknowledgement resources
    Patent number: 12267835
    Abstract: Systems and methods are provided for allocation of acknowledgement resources. In an embodiment, a method of transmitting control information to a communication network may be implemented in a wireless device. The method may include being configured with at least two physical uplink control channel (PUCCH) opportunities, each of the at least two PUCCH opportunities identifying uplink resources to be used for transmitting control information to the communication network. The method may further include receiving an acknowledgement resource indication (ARI) indicating one of the configured at least two PUCCH opportunities to be used for transmitting control information associated with the DL transmission.
    Type: Grant
    Filed: June 3, 2020
    Date of Patent: April 1, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Robert Baldemair, Erik Dahlman, Sorour Falahati, Daniel Larsson, Stefan Parkvall
  • Rx-tx time difference generation, measurement and reporting with neighboring base stations
    Patent number: 12267796
    Abstract: A method performed by a first base station for positioning in a cellular communication system includes receiving, at the first base station, a signal transmitted by a second base station and estimating a Time of Arrival (TOA) of the received signal at the first base station according to a clock of the first base station. The method further includes determining a delta value that is a function of an amount of time between the TOA of the received signal at the first base station and a time reference at the first base station and performing either, (a) providing the delta value to a positioning estimation entity within the cellular communications system or (b) using the delta value at the first base station to reduce a time synchronization error between the first base station and the second base station, or (c) passing the delta value to a User Equipment (UE).
    Type: Grant
    Filed: October 10, 2020
    Date of Patent: April 1, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Satyam Dwivedi, Fredrik Gunnarsson, Erik Dahlman, Erik Stare
  • RESOURCE MAPPING BASED ON BANDWIDTH PART
    Publication number: 20250106837
    Abstract: There is disclosed a method of operating a user equipment in a radio access network, the method including communicating based on a control information message received while operating on a first bandwidth part; wherein the control information message represents a bit pattern; wherein the bit pattern is interpreted differently depending on whether the control information message indicates switch to operating on a second bandwidth part or not. The disclosure also pertains to related devices or methods.
    Type: Application
    Filed: December 9, 2024
    Publication date: March 27, 2025
    Inventors: Robert BALDEMAIR, Daniel CHEN LARSSON, Erik DAHLMAN, Sorour FALAHATI, Stefan PARKVALL
  • Persistent indication of acknowledgement resources
    Patent number: 12231247
    Abstract: A user equipment is configured with at least two collections of uplink resources to be used for transmitting control information to a communication network. The UE receives an assignment of radio resources to be used for receiving a downlink transmission from a base station of the communication network. The UE receives an acknowledgement resource indication, ARI, indicating one of the configured collections of uplink resources to be used for transmitting control information associated with the DL transmission. Further, the UE transmits the control information to the base station on at least a subset of the indicated collection of UL resources. In example embodiments, the indicated collection of uplink resources comprises a plurality of selectable uplink resource sets. The control information is transmitted on one of the uplink resource sets which corresponds to an operational state of the communication network.
    Type: Grant
    Filed: July 18, 2023
    Date of Patent: February 18, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Stefan Parkvall, Robert Baldemair, Erik Dahlman, Sorour Falahati, Daniel Larsson
  • Network architecture, methods, and devices for a wireless communications network
    Patent number: 12231284
    Abstract: Methods and apparatus in a fifth-generation wireless communications network, including an example method, in a wireless device, that includes determining a reporting quality threshold for a parameter related to channel state information (CSI); performing a measurement for each of a plurality of beams from a first predetermined set of beams for evaluation; evaluating the measurement for each of the plurality of beams against the reporting quality threshold; discontinuing the performing and evaluating of measurements in response to determining that the reporting quality threshold is met for one of the beams, such that one or more beams in the first predetermined set of beams are not measured and evaluated; and reporting, to the wireless communications network, CSI for the one of the beams.
    Type: Grant
    Filed: June 8, 2022
    Date of Patent: February 18, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Stefan Parkvall, Janne Peisa, Gunnar Mildh, Robert Baldemair, Stefan Wager, Jonas Kronander, Karl Werner, Richard Abrahamsson, Ismet Aktas, Peter Alriksson, Junaid Ansari, Shehzad Ali Ashraf, Henrik Asplund, Fredrik Athley, Håkan Axelsson, Joakim Axmon, Johan Axnäs, Kumar Balachandran, Gunnar Bark, Jan-Erik Berg, Andreas Bergström, Håkan Björkegren, Nadia Brahmi, Cagatay Capar, Anders Carlsson, Andreas Cedergren, Mikael Coldrey, Icaro L. J. da Silva, Erik Dahlman, Ali El Essaili, Ulrika Engström, Mårten Ericson, Erik Eriksson, Mikael Fallgren, Rui Fan, Gabor Fodor, Pål Frenger, Jonas Fridén, Jonas Fröberg Olsson, Anders Furuskär, Johan Furuskog, Virgile Garcia, Ather Gattami, Fredrik Gunnarsson, Ulf Gustavsson, Bo Hagerman, Fredrik Harrysson, Ning He, Martin Hessler, Kimmo Hiltunen, Songnam Hong, Dennis Hui, Jörg Huschke, Tim Irnich, Sven Jacobsson, Niklas Jaldén, Simon Järmyr, Zhiyuan Jiang, Martin Johansson, Niklas Johansson, Du Ho Kang, Eleftherios Karipidis, Patrik Karlsson, Ali S. Khayrallah, Caner Kilinc, Göran N. Klang, Sara Landström, Christina Larsson, Gen Li, Bo Lincoln, Lars Lindbom, Robert Lindgren, Bengt Lindoff, Fredrik Lindqvist, Jinhua Liu, Thorsten Lohmar, Qianxi Lu, Lars Manholm, Ivana Maric, Jonas Medbo, Qingyu Miao, Reza Moosavi, Walter Müller, Elena Myhre, Johan Nilsson, Karl Norrman, Bengt-Erik Olsson, Torgny Palenius, Sven Petersson, Jose Luis Pradas, Mikael Prytz, Olav Queseth, Pradeepa Ramachandra, Edgar Ramos, Andres Reial, Thomas Rimhagen, Emil Ringh, Patrik Rugeland, Johan Rune, Joachim Sachs, Henrik Sahlin, Vidit Saxena, Nima Seifi, Yngve Selén, Eliane Semaan, Sachin Sharma, Cong Shi, Johan Sköld, Magnus Stattin, Anders Stjernman, Dennis Sundman, Lars Sundström, Miurel Isabel Tercero Vargas, Claes Tidestav, Sibel Tombaz, Johan Torsner, Hugo Tullberg, Jari Vikberg, Peter von Wrycza, Thomas Walldeen, Anders Wallen, Pontus Wallentin, Hai Wang, Ke Wang Helmersson, Jianfeng Wang, Yi-Pin Eric Wang, Niclas Wiberg, Emma Wittenmark, Osman Nuri Can Yilmaz, Ali Zaidi, Zhan Zhang, Zhang Zhang, Yanli Zheng
  • Integrated access and backhaul node resource timing
    Patent number: 12213155
    Abstract: Methods and apparatus are provided for determining timing of resources in an integrated access and backhaul, IAB, node (200). In one example, a method (1300), is performed by an integrated access and backhaul, IAB, node (200), the method comprising: determining (s1302) one or more timing offset for a time resource, the offset being in relation to a mobile termination, MT, and a distributed unit, DU, resource of the IAB node, and providing (s1304) to a parent IAB node (300), information related to the one or more timing offset of the IAB node.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: January 28, 2025
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Yezi Huang, Erik Dahlman, Boris Dortschy
  • IAB downlink timing
    Patent number: 12213087
    Abstract: There is disclosed a method of operating an Integrated Access and Backhaul (IAB) node (200, C, N3) in a radio access network, the IAB node (200, C, N3) being connected to a first parent IAB node (200, N1, P) via a first backhaul link having a first timing, and being connected to a second parent IAB node (200, N2, P) via a second backhaul link having a second timing, the IAB node (200, C, N3) providing a communication link for access or backhaul, the communication link having a communication timing based on the first timing and the second timing. The disclosure also pertains to related methods and devices.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: January 28, 2025
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Boris Dortschy, Robert Baldemair, Per-Erik Eriksson, Yezi Huang, Erik Dahlman
  • Integrated access backhaul (IAB) nodes with negative propagation delay indication
    Patent number: 12200649
    Abstract: Embodiments include methods performed by an integrated access backhaul (JAB) node configured for operation in an IAB network. Such methods include receiving, from an upstream node in the IAB network, first timing offset information related to communications between the IAB node and the upstream node. Such methods include transmitting a downlink (DL) signal to one or more downstream nodes in the IAB network. The DL signal is transmitted according to a DL transmission timing determined from the following: the IAB node's DL reception timing of a DL signal received from the upstream node; and a second timing value determined based on a first function of the first timing offset information, when the first function of the first timing offset information is greater than a threshold. Other embodiments also include IAB nodes configured to perform such methods.
    Type: Grant
    Filed: July 19, 2023
    Date of Patent: January 14, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Boris Dortschy, Erik Dahlman
  • IAB soft resource availability determination
    Patent number: 12192829
    Abstract: According to some embodiments, an integrated access and backhaul, IAB, network node comprises an IAB distributed unit, DU, and an IAB mobile termination, MT. A method performed by the IAB network node comprises receiving an availability indication at the IAB-MT, determining an IAB-DU soft resource availability based on the received availability indication, and transmitting or receiving according to the determined IAB-DU soft resource availability.
    Type: Grant
    Filed: October 2, 2020
    Date of Patent: January 7, 2025
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Yezi Huang, Erik Dahlman, Boris Dortschy
  • PERSISTENT INDICATION OF ACKNOWLEDGEMENT RESOURCES
    Publication number: 20240430044
    Abstract: A user equipment is configured with at least two collections of uplink resources to be used for transmitting control information to a communication network. The UE receives an assignment of radio resources to be used for receiving a downlink transmission from a base station of the communication network. The UE receives an acknowledgement resource indication, ARI, indicating one of the configured collections of uplink resources to be used for transmitting control information associated with the DL transmission. Further, the UE transmits the control information to the base station on at least a subset of the indicated collection of UL resources. In example embodiments, the indicated collection of uplink resources comprises a plurality of selectable uplink resource sets. The control information is transmitted on one of the uplink resource sets which corresponds to an operational state of the communication network.
    Type: Application
    Filed: September 10, 2024
    Publication date: December 26, 2024
    Inventors: Stefan PARKVALL, Robert BALDEMAIR, Erik DAHLMAN, Sorour FALAHATI, Daniel LARSSON
  • Network Architecture, Methods, and Devices for a Wireless Communications Network
    Publication number: 20240421931
    Abstract: Methods and apparatus in a fifth-generation wireless communications, including an example method, in a wireless device, that includes receiving a downlink signal comprising an uplink access configuration index, using the uplink access configuration index to identify an uplink access configuration from among a predetermined plurality of uplink access configurations, and transmitting to the wireless communications network according to the identified uplink access configuration. The example method further includes, in the same wireless device, receiving, in a first subframe, a first Orthogonal Frequency-Division Multiplexing (OFDM) transmission formatted according to a first numerology and receiving, in a second subframe, a second OFDM transmission formatted according to a second numerology, the second numerology differing from the first numerology. Variants of this method, corresponding apparatuses, and corresponding network-side methods and apparatuses are also disclosed.
    Type: Application
    Filed: January 2, 2024
    Publication date: December 19, 2024
    Inventors: Stefan Parkvall, Janne Peisa, Gunnar Mildh, Robert Baldemair, Stefan Wager, Jonas Kronander, Karl Werner, Richard Abrahamsson, Ismet Aktas, Peter Alriksson, Junaid Ansari, Shehzad Ali Ashraf, Henrik Asplund, Fredrik Athley, Håkan Axelsson, Joakim Axmon, Johan Axnäs, Kumar Balachandran, Gunnar Bark, Jan-Erik Berg, Andreas Bergström, Håkan Björkegren, Nadia Brahmi, Cagatay Capar, Anders Carlsson, Andreas Cedergren, Mikael Coldrey, Icaro L. J. da Silva, Erik Dahlman, Ali El Essaili, Ulrika Engström, Mårten Ericson, Erik Eriksson, Mikael Fallgren, Rui Fan, Gabor Fodor, Pål Frenger, Jonas Fridén, Jonas Fröberg Olsson, Anders Furuskär, Johan Furuskog, Virgile Garcia, Ather Gattami, Fredrik Gunnarsson, Ulf Gustavsson, Bo Hagerman, Fredrik Harrysson, Ning He, Martin Hessler, Kimmo Hiltunen, Songnam Hong, Dennis Hui, Jörg Huschke, Tim Irnich, Sven Jacobsson, Niklas Jaldén, Simon Järmyr, Zhiyuan Jiang, Martin Johansson, Niklas Johansson, Du Ho Kang, Eleftherios Karipidis, Patrik Karlsson, Ali S. Khayrallah, Caner Kilinc, Göran N. Klang, Sara Landström, Christina Larsson, Gen Li, Lars Lindbom, Robert Lindgren, Bengt Lindoff, Fredrik Lindqvist, Jinhua Liu, Thorsten Lohmar, Qianxi Lu, Lars Manholm, Ivana Maric, Jonas Medbo, Qingyu Miao, Reza Moosavi, Walter Müller, Elena Myhre, Karl Norrman, Bengt-Erik Olsson, Torgny Palenius, Sven Petersson, Jose Luis Pradas, Mikael Prytz, Olav Queseth, Pradeepa Ramachandra, Edgar Ramos, Andres Reial, Thomas Rimhagen, Emil Ringh, Patrik Rugeland, Johan Rune, Joachim Sachs, Henrik Sahlin, Vidit Saxena, Nima Seifi, Yngve Selén, Eliane Semaan, Sachin Sharma, Cong Shi, Johan Sköld, Magnus Stattin, Anders Stjernman, Dennis Sundman, Lars Sundström, Miurel Isabel Tercero Vargas, Claes Tidestav, Sibel Tombaz, Johan Torsner, Hugo Tullberg, Jari Vikberg, Peter von Wrycza, Thomas Walldeen, Pontus Wallentin, Hai Wang, Ke Wang Helmersson, Jianfeng Wang, Yi-Pin Eric Wang, Niclas Wiberg, Emma Wittenmark, Osman Nuri Can Yilmaz, Ali Zaidi, Zhan Zhang, Zhang Zhang, Yanli Zheng
  • Resource mapping based on bandwidth part
    Patent number: 12170993
    Abstract: There is disclosed a method of operating a user equipment in a radio access network, the method including communicating based on a control information message received while operating on a first bandwidth part; wherein the control information message represents a bit pattern; wherein the bit pattern is interpreted differently depending on whether the control information message indicates switch to operating on a second bandwidth part or not. The disclosure also pertains to related devices or methods.
    Type: Grant
    Filed: February 17, 2018
    Date of Patent: December 17, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Robert Baldemair, Daniel Chen Larsson, Erik Dahlman, Sorour Falahati, Stefan Parkvall
  • PUCCH structure for mixed numerology
    Patent number: 12160390
    Abstract: There is disclosed a user equipment for a Radio Access Network. The user equipment is adapted for communicating utilizing a first transmission timing structure having a first number of symbols, and for communicating utilizing a second transmission timing structure comprising a second number of symbols. The user equipment further is adapted for receiving first signaling based on the first transmission timing structure and for transmitting acknowledgement signaling pertaining to the first signaling based on the second transmission timing structure, wherein the user equipment is adapted to start transmitting the acknowledgement signaling at a starting symbol of the second transmission timing structure, the starting symbol being determined based on a configuration of the user equipment.
    Type: Grant
    Filed: January 13, 2023
    Date of Patent: December 3, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Robert Baldemair, Erik Dahlman, Carola Faronius, Stefan Parkvall
  • Atmospheric channel-driven interference handling
    Patent number: 12155601
    Abstract: There is disclosed a method of operating a network node in a radio access network, the network node utilising a first carrier and a second carrier for communicating with one or more user equipments. The method includes adapting utilisation of the second carrier based on a received indication of BS-to-BS interference pertaining to the first carrier. The disclosure also pertains to related devices and methods.
    Type: Grant
    Filed: August 5, 2018
    Date of Patent: November 26, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Robert Baldemair, Stefan Parkvall, Erik Dahlman, Sorour Falahati
  • Random-access procedure
    Patent number: 12150169
    Abstract: A method in a network node for managing random-access procedures with a plurality of wireless devices. The method comprising transmitting an indication of a modulation format to one or more of the plurality of wireless devices to configure the modulation format for a random access message 3 transmission from the one or more wireless devices.
    Type: Grant
    Filed: July 26, 2023
    Date of Patent: November 19, 2024
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Henrik Sahlin, Robert Baldemair, Erik Dahlman, Stefan Parkvall
  • Synchronisation signaling for integrated access and backhaul nodes
    Patent number: 12150076
    Abstract: There is disclosed a method of operating an Integrated Access and Backhaul (IAB) node (200, C, N3) in a wireless communication network, the IAB node being in a communication link with a second IAB node using a signaling beam, the IAB node further being scheduled to perform beam sweeping with a plurality of synchronisation beams, one of the synchronisation beams corresponding to the signaling beam; wherein a synchronisation beam is scheduled to carry synchronisation signaling; and wherein the method comprises performing beam sweeping such that the synchronisation beam corresponding to the signaling beam carries information signaling replacing the synchronisation signaling at least in part. The disclosure also pertains to related methods and devices.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: November 19, 2024
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Yezi Huang, Erik Dahlman, Boris Dortschy, Lei Bao
  • IAB downlink timing
    Patent number: 12137425
    Abstract: There is disclosed a method of operating an Integrated Access and Backhaul (IAB) node in a radio access network, the IAB node being connected to a first parent IAB node via a first backhaul link, the method including communicating with one or more child nodes based on a downlink timing, the downlink timing being based on a function of one or more values of a first timing parameter, the values of the first timing parameter being indicated by corresponding first timing indicators received from the first parent IAB node and/or one or more values of a second timing parameter, the values of the second timing parameter being indicated by corresponding second timing indicators received from the first parent IAB node. The disclosure also pertains to related methods and devices.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: November 5, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Boris Dortschy, Erik Dahlman
  • Transmission of system information on a downlink shared channel
    Patent number: RE50287
    Abstract: In one embodiment, a method of transmitting system information on a downlink shared channel structured as successive subframes includes transmitting system information in regularly occurring time windows, each time window spanning some number of successive subframes. The method further includes indicating to receiving user equipment which subframes within a given time window carry system information. The method and variations of it are applied, for example, to the transmission of dynamic system information on the downlink shared channel or other downlink channel in a 3GPP E-UTRA wireless communication network.
    Type: Grant
    Filed: May 6, 2021
    Date of Patent: January 28, 2025
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Erik Dahlman, Vera Vukajlovic Kenehan