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: 11558163
    Abstract: There is disclosed a method of operating a network node, the network node operating according to a first radio access technology, RAT, the method including transmitting data in a transmission resource structure, the transmission resource structure including a first set of resource elements for data and a second set of resource elements for demodulation reference signals, DMRS, wherein the second set represents at least one pattern in frequency domain, wherein the transmission resource structure is scheduled based on a coexistence indication, the coexistence indication indicating the presence of cell-specific reference signals associated to a second RAT. The disclosure also pertains to related methods and devices.
    Type: Grant
    Filed: June 2, 2018
    Date of Patent: January 17, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Robert Baldemair, Håkan Björkegren, Erik Dahlman, Anders Furuskär, Franz Heiser, Karl Werner
  • Patent number: 11539564
    Abstract: A base station determines multiple different sets of configuration parameters for uplink sounding signal transmissions for a mobile terminal. Each of the multiple different sets of configuration parameters comprises frequency-domain and time-domain parameters. Each of the time-domain parameters indicates a time offset (in number of subframes) of a sounding signal, and a period (in number of subframes) of the sounding signal. The base station transmits information representing the multiple different sets of configuration parameters to the mobile terminal. The mobile terminal receives the information from the base station and generates different sounding signals based on the multiple different sets of configuration parameters.
    Type: Grant
    Filed: March 29, 2021
    Date of Patent: December 27, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Erik Dahlman, Ylva Jading, Stefan Parkvall
  • Patent number: 11539465
    Abstract: There is disclosed a method of operating a user equipment in a radio access network. The method includes transmitting acknowledgement information reporting on subject transmissions based on a HARQ codebook. The HARQ codebook indicates a bit pattern of the acknowledgement information. The bit pattern has a plurality of subpatterns, each subpattern being associated to a different subdivision of a reception time interval to which the acknowledgement information pertains. Each subpattern includes a predetermined number of bits of acknowledgement information associated to subject transmissions of the subdivision. There are also disclosed related methods and devices.
    Type: Grant
    Filed: February 16, 2018
    Date of Patent: December 27, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Sorour Falahati, Robert Baldemair, Daniel Chen Larsson, Erik Dahlman, Stefan Parkvall
  • Publication number: 20220408490
    Abstract: Performing random access process. In one aspect, there is a method performed by a network function. The method comprises the network function generating system information and the network function broadcasting the system information. The system information comprises i) first power information for use by at least a first set of communication devices and a second set of communication devices in determining a transmit power, and ii) second power information for use by the first set of communication devices, but not the second set of communication devices, in determining the transmit power.
    Type: Application
    Filed: October 29, 2020
    Publication date: December 22, 2022
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Behrooz MAKKI, Erik DAHLMAN
  • Publication number: 20220394591
    Abstract: Mechanisms for efficient transmission of large amount of download data from a base station to a user equipment in a multi-carrier that minimizes power consumption on the user equipment are described. When multiple component carriers are to be used to transmit the download data, the base station informs the user equipment. The base station transmits on the anchor carriers without wait after informing the user equipment and transmits on the non-anchor carriers after waiting a predetermined delay. The predetermined delay provides time to allow the user equipment to activate the receiving resources and be ready to receive the download data over the non-anchor carriers. In this manner, the user equipment can be in a power conservation mode and activate the receiver resources only when needed.
    Type: Application
    Filed: August 16, 2022
    Publication date: December 8, 2022
    Inventors: Bengt Lindoff, Erik Dahlman, Stefan Parkvall
  • Publication number: 20220346046
    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: Application
    Filed: October 4, 2019
    Publication date: October 27, 2022
    Inventors: Yezi Huang, Erik Dahlman, Boris Dortschy, Lei Bao
  • Publication number: 20220346044
    Abstract: Methods and apparatuses are disclosed for determining a muting pattern of a synchronization signal block (SSB) transmission for Integrated Access and Backhaul (IAB) node measurement. In one embodiment, a network node is configured to indicate a first muting pattern, the indication of the first muting pattern indicating at least one first synchronization signal block, SSB, transmission opportunity associated with SSB transmission configuration, STC, that is mutable by an Integrated Access Backhaul, IAB, node. In one embodiment, a network node is configured to determine a first muting pattern, the first muting pattern indicating at least one SSB transmission opportunity associated with a STC that is mutable by the network node; and mute the at least one first SSB transmission opportunity according to the determined first muting pattern.
    Type: Application
    Filed: October 5, 2020
    Publication date: October 27, 2022
    Inventors: Erik DAHLMAN, Yezi HUANG, Boris DORTSCHY, Lei BAO
  • Publication number: 20220329365
    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: June 23, 2022
    Publication date: October 13, 2022
    Inventors: Stefan PARKVALL, Robert BALDEMAIR, Erik DAHLMAN, Sorour FALAHATI, Daniel LARSSON
  • Publication number: 20220303924
    Abstract: A method, system, network nodes and apparatus are disclosed. According to one or more embodiments, a donor integrated access backhaul, IAB, node configured with a distributed unit, DU, for communicating with a wireless device and configured with a central unit, CU, for communicating with at least a first child IAB node is provided. The donor IAB node includes processing circuitry configured to indicate a determined first synchronization signaling blocks, SSB, transmission configuration, STC, for the at least first child IAB node, to the at least first child IAB node where the first STC is associated with inter-node measurement.
    Type: Application
    Filed: August 14, 2020
    Publication date: September 22, 2022
    Inventors: Erik DAHLMAN, Yezi HUANG, Boris DORTSCHY, Lei BAO, Behrooz MAKKI
  • Publication number: 20220278741
    Abstract: A method in a first network node in an IAB network is provided. The method comprises: receiving capability information associated with a second network node, which has a first transceiver and a second transceiver, the capability information being related to an operation of the first transceiver at a first frequency and the second transceiver at a second frequency; configuring one or more resources associated with the first transceiver of the second network node based on the received capability information; and sending an indication of the configured resources to the second network node.
    Type: Application
    Filed: August 5, 2020
    Publication date: September 1, 2022
    Inventors: Erik Dahlman, Boris Dortschy, Yezi Huang
  • Patent number: 11431443
    Abstract: A method of operating a user equipment in a radio access network is disclosed. The method includes transmitting acknowledgment signaling based on a codebook, the codebook associating a bit pattern having comprising one or more subpatterns with the acknowledgment signaling. Each subpattern representing acknowledgment information according to a reporting type, in which the codebook groups subpatterns based on their reporting type.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: August 30, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Robert Baldemair, Mattias Andersson, Erik Dahlman, Stefan Parkvall
  • Patent number: 11425577
    Abstract: There is disclosed a method of operating a network node (100) in a radio access network, the network node (100) being adapted for reception beamforming, the method comprising switching from a first set of reception beams to a second set of reception beams based on a received BS-to-BS interference indication. The disclosure also pertains to related devices and methods.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: August 23, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Axel Guthmann, Robert Baldemair, Erik Dahlman, Sorour Falahati, Stefan Parkvall
  • Publication number: 20220264578
    Abstract: According to some embodiments, a method for use in a wireless transmitter of a wireless communication network comprises providing control information relating to a slot. The control information includes an indication of whether the slot is of a first type or a second type. A slot of the first type starts at a slot interval boundary, and a slot of the second type either starts between slot interval boundaries and has arbitrary length or starts at a slot interval boundary and has reduced length. The control information includes an implicit or explicit reference signal timing indication if the slot is of the second type. The method further comprises transmitting the control information to a wireless receiver.
    Type: Application
    Filed: May 4, 2022
    Publication date: August 18, 2022
    Inventors: Stefan PARKVALL, Robert BALDEMAIR, Daniel LARSSON, Erik DAHLMAN
  • Publication number: 20220264565
    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: Application
    Filed: July 30, 2020
    Publication date: August 18, 2022
    Inventors: Yezi Huang, Erik Dahlman, Boris Dortschy
  • Patent number: 11419034
    Abstract: Mechanisms for efficient transmission of large amount of download data from a base station to a user equipment in a multi-carrier that minimizes power consumption on the user equipment are described. When multiple component carriers are to be used to transmit the download data, the base station informs the user equipment. The base station transmits on the anchor carriers without wait after informing the user equipment and transmits on the non-anchor carriers after waiting a predetermined delay. The predetermined delay provides time to allow the user equipment to activate the receiving resources and be ready to receive the download data over the non-anchor carriers. In this manner, the user equipment can be in a power conservation mode and activate the receiver resources only when needed.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: August 16, 2022
    Assignee: TELEFONAKTIEBOLAGET L M ERICSSON (publ)
    Inventors: Bengt Lindoff, Erik Dahlman, Stefan Parkvall
  • Publication number: 20220256485
    Abstract: In one aspect, a wireless relay node operating in a wireless communications network obtains (602), for each of one or more other wireless relay nodes, information indicating a muting pattern for muting of synchronization signal blocks, SSBs, by the other wireless relay node. The wireless relay node performs (604) measurements of SSBs and muting of SSB transmissions based on the obtained information.
    Type: Application
    Filed: April 24, 2020
    Publication date: August 11, 2022
    Inventors: Boris Dortschy, Erik Dahlman, Yezi Huang, Lei Bao, Behrooz Makki
  • Publication number: 20220248381
    Abstract: There is disclosed a method of operating a network node in a radio access network, the method includes transmitting a resource allocation message comprising a bit field, the resource allocation message being transmitted for reception in a common search space to which a first bandwidth part with a first unit size of resource allocation is associated. The bit field allocates resources in a second bandwidth part with a second unit size of resource allocation. The disclosure also pertains to related devices and methods.
    Type: Application
    Filed: April 14, 2022
    Publication date: August 4, 2022
    Inventors: Axel GUTHMANN, Robert BALDEMAIR, Daniel CHEN LARSSON, Erik DAHLMAN, Sorour FALAHATI, Stefan PARKVALL
  • Publication number: 20220232559
    Abstract: The technology described in this case facilitates random access by a user terminal with a radio base station. A user terminal determines one of a first type of uplink scrambling sequences and generates a random access message using the determined one of the first type of uplink scrambling sequences. The random access message is transmitted to the base station. The user terminal receives from the base station a second, different type of uplink scrambling sequence and uses it for subsequent communication with the radio base station. For example, the first uplink scrambling sequences may be specifically associated with the radio base station's cell area or a random access radio channel associated with the radio base station, but they are not specifically assigned to any user terminal, and the second uplink scrambling sequence may be selected from a second set of uplink scrambling sequences specifically assignable to individual user terminals.
    Type: Application
    Filed: April 7, 2022
    Publication date: July 21, 2022
    Inventors: Stefan PARKVALL, Erik DAHLMAN, Tobias TYNDERFELDT
  • Patent number: 11394514
    Abstract: The disclosure pertains to a method of operating a user equipment (10) in a radio access network. The method comprises transmitting control signaling utilising a resource sequence, the control signaling being of a control signaling type representing acknowledgement information and/or resource requesting information, wherein the resource sequence is selected from a set of resource sequences based on the control signaling type. The disclosure also pertains to related devices and methods.
    Type: Grant
    Filed: May 5, 2017
    Date of Patent: July 19, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Robert Baldemair, Daniel Chen Larsson, Erik Dahlman, Sorour Falahati, Stefan Parkvall
  • Patent number: 11394499
    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: November 11, 2021
    Date of Patent: July 19, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Stefan Parkvall, Robert Baldemair, Erik Dahlman, Sorour Falahati, Daniel Larsson