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).

  • Patent number: 11722260
    Abstract: There is disclosed a method of operating a user equipment in a radio access network. The method includes transmitting acknowledgement signaling according to a HARQ codebook at a second HARQ transmitting occasion, the HARQ codebook indicating first acknowledgement information, the first acknowledgement information pertaining to first data signaling scheduled to be received by the user equipment before a first HARQ transmitting occasion that occurred earlier in time than the second HARQ transmitting occasion. The disclosure also pertains to related devices and methods.
    Type: Grant
    Filed: July 26, 2018
    Date of Patent: August 8, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Robert Baldemair, Stefan Parkvall, Erik Dahlman, Sorour Falahati
  • Patent number: 11716180
    Abstract: Limited uplink bandwidth radio network devices are supported on wide bandwidth uplink carriers by configuring and controlling the use of multiple control regions within the uplink carrier bandwidth. In some embodiments, the total bandwidth of the uplink carrier is divided into a plurality of sub-band portions, wherein each sub-band portion includes at least one control region nominally dedicated to the transmission of uplink control signaling. Radio network devices are configured with a specified portion of the uplink carrier bandwidth for use for uplink transmission, which includes at least one control region. Radio network devices may be provisioned or provided with information regarding control regions reserved for control signaling by other radio network devices. The radio network devices may be dynamically configured to allow or suppress uplink data signaling in specified control regions, or portions thereof.
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: August 1, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Robert Baldemair, Erik Dahlman, Sorour Falahati, Daniel Larsson, Stefan Parkvall
  • Patent number: 11711173
    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: June 23, 2022
    Date of Patent: July 25, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Stefan Parkvall, Robert Baldemair, Erik Dahlman, Sorour Falahati, Daniel Larsson
  • Publication number: 20230232316
    Abstract: An IAB node performs a method for determining a periodicity of a SSB and/or a RMSI for use in an IAB backhaul link. The method may comprise one or more of: using a predetermined periodicity value; determining a periodicity value based on at least one different parameter; receiving a signaling message indicating a periodicity value and using the indicated periodicity value for the IAB backhaul link; and selecting a periodicity value from a plurality of permitted periodicity values.
    Type: Application
    Filed: January 9, 2023
    Publication date: July 20, 2023
    Inventors: Lei BAO, Erik Dahlman, Zhipeng Lin
  • Patent number: 11706073
    Abstract: The present disclosure pertains to a terminal for a Radio Access Network, the terminal being adapted for transmission based on a first frequency division multiple access (FDMA) technology and for transmission based on a second frequency division multiple access technology. The terminal is adapted for transmitting reference signaling having a comb structure for transmission based on either the first FDMA technology or the second FDMA technology. The disclosure also pertains to related devices and methods.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: July 18, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Robert Baldemair, Erik Dahlman, Lars Lindbom, Stefan Parkvall
  • Publication number: 20230224059
    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 5, 2023
    Publication date: July 13, 2023
    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
  • Patent number: 11683812
    Abstract: There is disclosed a method of operating a user equipment in a radio access network, the user equipment being configured with a set of bandwidth parts, the user equipment being operable for communicating utilising an activated bandwidth part of the set of bandwidth part. The set of bandwidth parts comprises a first bandwidth part and a second bandwidth part, the first bandwidth part of the set being associated to a first set of characteristics, the second bandwidth part of the set being associated to a second set of characteristics. Further, the first set of characteristics and the second set of characteristics comprise at least one characteristic different between the first set and the second set of characteristics. The user equipment (10) further operates with a common search space for control signaling, the common search space being included in the first bandwidth part and the second bandwidth part.
    Type: Grant
    Filed: February 16, 2018
    Date of Patent: June 20, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Erik Dahlman, Robert Baldemair, Daniel Chen Larsson, Sorour Falahati, Stefan Parkvall
  • Patent number: 11683143
    Abstract: A node (100) of a wireless communication network manages sending of control information to a radio device (10). For a first frequency band, the control information indicates a first start position for transmission of a data channel. For a second frequency band, the control information indicates a second start position for transmission of the data channel. Based on the first start position and the second start position, the node (100) controls transmission of data on the data channel.
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: June 20, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Robert Baldemair, Håkan Björkegren, Erik Dahlman, Stefan Parkvall
  • Patent number: 11659511
    Abstract: The present invention relates to methods and arrangements in a base station and a user equipment for determining an uplink transmission timing correction for communication in a telecommunication system in which aggregation of component carriers is applied. The base station receives a signal from the user equipment on an uplink (UL) component carrier and measures the arrival time of the signal. A timing correction of the UL transmission timing based on the arrival time of the signal is determined. Thereupon the base station determines for which of the uplink component carriers used by the user equipment the timing correction is valid. The timing correction and the validity information is sent to the user equipment. The user equipment adjusts the UL transmission timing for each UL component carrier the timing correction is valid for.
    Type: Grant
    Filed: August 25, 2020
    Date of Patent: May 23, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Robert Baldemair, David Astely, Erik Dahlman, Ylva Jading
  • Publication number: 20230155792
    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: Application
    Filed: January 13, 2023
    Publication date: May 18, 2023
    Inventors: Robert BALDEMAIR, Erik DAHLMAN, Carola FARONIUS, Stefan PARKVALL
  • Patent number: 11652562
    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: Grant
    Filed: December 31, 2020
    Date of Patent: May 16, 2023
    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, Häkan 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, Niklas Johansson, Martin 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 Muller, 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
  • Patent number: 11646846
    Abstract: There is disclosed a method of operating a user equipment in a radio access network. The method comprises transmitting, during a transmission period, first signaling having a first set of transmission characteristics, and second signaling having second set of transmission characteristics, wherein the first set differs from the second set, wherein transmitting comprises including a transient protection interval in time domain between the first signaling and the second signaling. The disclosure also pertains to related devices and methods.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: May 9, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Robert Baldemair, Daniel Larsson, Erik Dahlman, Stefan Parkvall
  • Publication number: 20230139305
    Abstract: To configure uplink sounding transmissions by mobile terminals in a wireless communication network, sets of configuration parameters for uplink sounding signal transmissions are determined for a given mobile terminal. Each of the sets of configuration parameters comprising frequency-domain and/or time-domain parameters. The sets of configuration parameters are transmitted to the mobile terminal, thereby enabling the mobile terminal to generate different sounding signals used by the wireless communication network to estimate different properties associated with at least one of uplink signals and uplink channels.
    Type: Application
    Filed: December 22, 2022
    Publication date: May 4, 2023
    Inventors: Erik Dahlman, Ylva Jading, Stefan Parkvall
  • Publication number: 20230134743
    Abstract: Systems and methods are disclosed herein for frequency domain resource configuration in an Integrated Access and Backhaul (IAB) node. In one embodiment, a method performed by an IAB node configured to operate in a spectrum band comprises receiving a configuration message(s) related to the spectrum band comprising information that defines two or more modes of operation of a distributed unit (DU) of the IAB node that are allowed for two or more subsets of a plurality of subcarriers within the spectrum band of the IAB node, respectively. The method further comprises allocating at least one of the subsets of the plurality of subcarriers within the spectrum band for performing an operation based on a mode of operation of the IAB node and the information comprised in the configuration message(s) and performing the operation on the allocated at least one of the subsets of the plurality of subcarriers.
    Type: Application
    Filed: April 6, 2021
    Publication date: May 4, 2023
    Inventors: Magnus Åström, Erik Dahlman, Boris Dortschy, Lei Bao, Behrooz Makki
  • Publication number: 20230130847
    Abstract: A method, system and apparatus are disclosed for aligning Distributed Unit/Mobile Termination (DU/MT) transmission timing. In one embodiment, a method in a network node includes adjusting a first transmission timing to align with a second transmission timing, the first transmission timing comprising one of a Distributed Unit, DU, and a Mobile Terminated Unit, MT, transmission timing at the network node and the second transmission timing comprising another one of the DU and the MT transmission timing at the network node. In another embodiment, a method in a network node includes receiving an MT transmission based at least in part on an adjustment of a first transmission timing to align with a second transmission timing.
    Type: Application
    Filed: April 8, 2021
    Publication date: April 27, 2023
    Inventors: Erik DAHLMAN, Magnus ÅSTRÖM, Boris DORTSCHY, Lei BAO, Behrooz MAKKI
  • Publication number: 20230120647
    Abstract: The present invention relates to methods and arrangements in a base station and a user equipment for determining an uplink transmission timing correction for communication in a telecommunication system which aggregation of component carriers is applied. The base station receives a signal from the user equipment on an uplink (UL) component carrier and measures the arrival time of the signal. A timing correction of the UL transmission timing based on the arrival time of the signal is determined. Thereupon the base station determines for which of the uplink component carriers used by the user equipment the timing correction is valid. The timing correction and the validity information is sent to the user equipment. The user equipment adjusts the UL transmission timing for each UL component carrier the timing correction is valid for.
    Type: Application
    Filed: December 19, 2022
    Publication date: April 20, 2023
    Inventors: Robert Baldemair, David Astely, Erik Dahlman, Ylva Jading
  • Publication number: 20230109947
    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: Application
    Filed: June 8, 2022
    Publication date: April 13, 2023
    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 Wallén, 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
  • Patent number: 11617144
    Abstract: There is disclosed a method of operating a network node in a radio access network. The method includes determining an identity associated to a second network node based on received SS/PBCH block transmission received from the second network node and based on a determined time shift of the SS/PBCH block transmission relative to a slot structure. The disclosure also pertains to related devices and methods.
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: March 28, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Robert Baldemair, Stefan Parkvall, Erik Dahlman, Sorour Falahati
  • Patent number: 11569950
    Abstract: The present disclosure relates to a first radio node configured for orthogonal frequency division multiplexing (OFDM), comprising a receiver, a transmitter, a processor and a memory storing instructions executable by the processor for causing the transmitter in a first mode of operation with a first subcarrier spacing f1: to transmit a sequence of prefixed OFDM symbols, and in a second mode of operation with a second subcarrier spacing f2: to transmit a sequence of prefixed OFDM symbols, wherein the sequence of transmitted OFDM symbols is aligned with a predefined repeating radio frame, which is common to both the first and second modes of operation, or with an integer multiple of the predefined repeating radio frame; and the first and second subcarrier spacings are related by an integer factor, f1/f2=p or f1/f2=1/p, with p?1 integer.
    Type: Grant
    Filed: October 14, 2021
    Date of Patent: January 31, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Stefan Parkvall, Erik Dahlman, Asbjörn Grövlen
  • Patent number: 11564152
    Abstract: An IAB node performs a method for determining a periodicity of a SSB and/or a RMSI for use in an IAB backhaul link. The method may comprise one or more of: using a predetermined periodicity value; determining a periodicity value based on at least one different parameter; receiving a signaling message indicating a periodicity value and using the indicated periodicity value for the IAB backhaul link; and selecting a periodicity value from a plurality of permitted periodicity values.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: January 24, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Lei Bao, Erik Dahlman, Zhipeng Lin