Patents by Inventor Claes Tidestav

Claes Tidestav 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: 11095344
    Abstract: Exemplary embodiments include methods for a network node to receive PUCCH transmissions by a user equipment (UE). Embodiments include sending, to the UE, a control message comprising: 1) identification of a first spatial relation of a plurality of spatial relations configured for the UE, wherein the plurality of spatial relations are associated with one or more reference signals (RS) transmitted by the network node or by the UE; and 2) an indication of whether the first spatial relation applies to a single PUCCH resource or at least one group of PUCCH resources configured for the UE. Embodiments also include receiving, from the UE, a PUCCH message transmitted according to the first spatial relation using a PUCCH resource, configured for the UE, to which the first spatial relation applies. Embodiments also include complementary methods performed by a UE, as well as network nodes and UEs configured to perform such methods.
    Type: Grant
    Filed: August 25, 2020
    Date of Patent: August 17, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Stephen Grant, Sebastian Faxér, Mattias Frenne, Siva Muruganathan, Claes Tidestav
  • Publication number: 20210250882
    Abstract: Embodiments of the invention include methods, systems, and computer programs to determine synchronization signal (SS) block mapping pattern in a wireless network. In one embodiment, a method is implemented in a terminal device for synchronization signal block (SSB) search in a wireless network, the method includes receiving, by the terminal device from a network device, a message containing synchronization signal block (SSB) information indicating a synchronization signal (SS) block subcarrier spacing (SCS) option, where the SS block SCS option maps to a plurality of SS block pattern candidates. The method continues with obtaining SSB candidate locations, using a SS block pattern determination from the plurality of SS block pattern candidates for the terminal device determined.
    Type: Application
    Filed: July 10, 2019
    Publication date: August 12, 2021
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Zhipeng LIN, Asbjörn GRÖVLEN, Fredrik OVESJÖ, Robert BALDEMAIR, Claes TIDESTAV
  • Publication number: 20210235474
    Abstract: A beam management method is performed by a UE. In one embodiment the method includes: the UE receiving a first scheduling message regarding a first scheduled downlink transmission for the UE, wherein the first scheduling message comprises pointer information pointing to an object configured in the UE. As a result of receiving the first scheduling message: the UE obtains the pointer information from the first scheduling message; the UE determines a preferred receiver configuration that is currently associated with the obtained pointer information; and the UE uses the determined preferred receiver configuration to receive the first scheduled downlink transmission.
    Type: Application
    Filed: April 12, 2021
    Publication date: July 29, 2021
    Inventors: Mattias Frenne, Sebastian Faxér, Stephen Grant, Claes Tidestav
  • Patent number: 11076323
    Abstract: One way to increase robustness against beam pair link failure is by transmitting downlink (DL) control signaling (e.g., PDCCH) in more than one beam. That is, one way to mitigate BPLF is for the UE to receive DL control signaling over both a first BPL (e.g., active BPL) and a second BPL (e.g., monitored BPL) but with larger duty cycle for the second BPL compared to the first BPL. For example, the control signaling can be scheduled every slot on the first BPL and scheduled every Nth slot on the second BPL. In this way, in case the first BPL is blocked and the UE cannot decode the control signaling on the first BPL, the UE can receive control signaling transmitted on the second BPL.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: July 27, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Andreas Nilsson, Mattias Frenne, Stephen Grant, Claes Tidestav
  • Patent number: 11064406
    Abstract: A method in a radio access node for communicating with a radio terminal in a network system includes transmitting to the radio terminal a mapping between a first set of identifiers and a second set of identifiers, each identifier identifying a reference signal in a network system, and communicating with the radio terminal using at least one identifier in the first set of identifiers.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: July 13, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Claes Tidestav, Stephen Grant
  • Patent number: 11064409
    Abstract: A method for a network node of a cellular communication network is disclosed. The network node and at least some other network nodes of the cellular communication network are each adapted to support a plurality of beams of a signal beam-forming scheme and to communicate with a wireless communication device using at least one of the plurality of beams. The method comprises identifying one or more candidate beams, causing transmission of a reference signal on each of the candidate beams, causing reservation of an uplink resource of at least one of the candidate beams (wherein the uplink resources are for conveying a report from the wireless communication device, and wherein the report is indicative of a result of measurements of the reference signals), and causing the communication with the wireless communication device to use a target beam (wherein one of the candidate beams is selected as the target beam based on the conveyed report).
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: July 13, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Andreas Cedergren, Andres Reial, Claes Tidestav
  • Patent number: 11057789
    Abstract: Embodiments of the present disclosure relate to methods and network nodes and user equipment for measurement reporting. In example embodiments, a method implemented in a user equipment is provided. According to the method, the user equipment detects a plurality of beams from one or more of the UE's neighboring nodes, forms one measurement result of a group based on beam grouping information, and then send measurement report to the UE's serving node, including the measurement result of the group is included in the measurement report. According to the present disclosure, more neighboring nodes can be reported by the UE in a measurement report.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: July 6, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Rui Fan, Shaohua Li, Andres Reial, Claes Tidestav
  • Patent number: 11051214
    Abstract: The present disclosure relates to methods and arrangements for performing wireless device assisted handover form a source access node to a target access node. Performed in a wireless device, a method comprises performing (S31) one or more mobility measurements for corresponding candidate radio links and selecting (S32), from the one or more candidate radio links, an initial target link based on the performed one or more mobility measurements. A first radio link measurement report based on the one or more mobility measurements, identifying the initial target link is transmitted (S33) to a target node providing the initial target link, using a first radio link reporting mechanism. A second radio link measurement report for the one or more candidate radio links and based on the same one or more mobility measurements, is transmitted (S34) to the source access node using a second radio link measurement report different from the first radio link reporting mechanism.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: June 29, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Andres Reial, Rui Fan, Qingyu Miao, Edgar Ramos, Johan Rune, Claes Tidestav, Zhang Zhang
  • Patent number: 11044642
    Abstract: The present invention relates to handling data transfer during handover, whereby a terminal device is initially connected to a serving access node and a handover is performed to connect the terminal device to a target access node. The improved handling of data transfer is achieved by upon making a handover decision, performing data rerouting to the target access node while continuing to exchange data between the terminal device and the serving access node, and stopping the data exchange between the terminal device and the serving access node in response to an indicator indicating that the target access node is ready to proceed with the handover.
    Type: Grant
    Filed: October 11, 2016
    Date of Patent: June 22, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Claes Tidestav, Edgar Ramos, Andres Reial, Johan Rune, Zhang Zhang
  • Publication number: 20210185754
    Abstract: According to embodiments herein a method performed by a radio network node for handling communication of a wireless device in a wireless communication network is herein provided. The radio network node configures the wireless device to perform a beam recovery process in one cell of a configured set of cells, wherein the configured set of cells includes a primary cell and a set of neighbor cells.
    Type: Application
    Filed: August 6, 2018
    Publication date: June 17, 2021
    Inventors: Icaro L. J. DA SILVA, Claes TIDESTAV
  • Patent number: 11038578
    Abstract: The disclosure relates to devices, methods, and computer programs in mobile communications in order to enhance signal transmission. Specifically, it relates to methods in a network node. The method comprises receiving S1 a signal with at least a partly known content and applying S2 to the received signal at least one set of reception weights out of a plurality predefined sets of reception weights, wherein each set of reception weights is associated with at least one reception beam parameter describing a reception beam configuration. The method further comprises determining S3, based on one or more predetermined criteria, at least one set of reception weights out of the applied predefined sets of reception weights and generating S4 at least one set of transmission weights. Said at least one set of transmission weights is based on the at least one reception beam parameter The method further comprise transmitting S5 a signal using the generated at least one set of transmission weights.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: June 15, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Andres Reial, Rui Fan, Johan Rune, Claes Tidestav
  • Patent number: 11039347
    Abstract: One way to increase robustness against beam pair link failure is by transmitting downlink (DL) control signaling (e.g., PDCCH) in more than one beam. That is, one way to mitigate BPLF is for the UE to receive DL control signaling over both a first BPL (e.g., active BPL) and a second BPL (e.g., monitored BPL) but with larger duty cycle for the second BPL compared to the first BPL. For example, the control signaling can be scheduled every slot on the first BPL and scheduled every Nth slot on the second BPL. In this way, in case the first BPL is blocked and the UE cannot decode the control signaling on the first BPL, the UE can receive control signaling transmitted on the second BPL.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: June 15, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Andreas Nilsson, Mattias Frenne, Stephen Grant, Claes Tidestav
  • Publication number: 20210168641
    Abstract: There is described a method of operating a measuring radio node (10, 100) in a radio access network, the method comprising transmitting measurement reporting to the radio access network, the measurement reporting being based on measurement performed on received data signaling. The disclosure also pertains to related devices and methods.
    Type: Application
    Filed: May 17, 2018
    Publication date: June 3, 2021
    Inventors: Mattias Frenne, Siva Muruganathan, Shiwei Gao, Claes Tidestav, Robert Mark Harrison, Stephen Grant
  • Publication number: 20210144600
    Abstract: The present disclosure relates to a method in a radio access node (110, 120, 130, 140, 150) for communicating with a radio terminal (10, 20, 30, 40, 50, 60, 70) in a network system, comprising the following steps: transmitting (S120) to the radio terminal (10, 20, 30, 40, 50, 60, 70) a mapping (800) between a first set of identifiers and a second set of identifiers, each identifier identifying a reference signal in a network system, and communicating (S130) with the radio terminal (10, 20, 30, 40, 50, 60, 70) using at least one identifier in the first set of identifiers.
    Type: Application
    Filed: May 3, 2018
    Publication date: May 13, 2021
    Inventors: Claes TIDESTAV, Stephen GRANT
  • Patent number: 11005701
    Abstract: According to a first aspect of embodiments herein, the object is achieved by a method performed by a User Equipment (UE) for monitoring a beam transmitted by a base station in a radio communications network. The base station is serving the UE. The UE monitors (1202) a reference signal related to the beam, from the base station. Each time a quality of the reference signal is below a first threshold, the UE generates (1203) an Out-Of-Synchronization (OOS) event When the number of OOS events reaches an OOS Beam Failure Detection (BFD) threshold, the UE triggers (1205) a beam recovery preparation procedure, and when the number of OOS events reaches an OOS Radio Link Monitoring (RLM), threshold, the UE starts (1206a) an RLF timer.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: May 11, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Icaro L. J. da Silva, Claes Tidestav
  • Patent number: 11005554
    Abstract: A method for a network node of a cellular communication network is disclosed. The network node and at least some other network nodes of the cellular communication network are each adapted to support a plurality of beams of a signal beam-forming scheme and to communicate with a wireless communication device using at least one of the plurality of beams. The method comprises initiating a mobility procedure, identifying interfering signals transmitted by one or more interfering beams, decreasing a transmit power level of the identified interfering signals, and executing at least part of the mobility procedure while the identified interfering signals use the decreased transmit power level.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: May 11, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Andreas Cedergren, Andres Reial, Claes Tidestav
  • Patent number: 11006439
    Abstract: A beam management method is performed by a UE. In one embodiment the method includes: the UE receiving a first scheduling message regarding a first scheduled downlink transmission for the UE, wherein the first scheduling message comprises pointer information pointing to an object configured in the UE. As a result of receiving the first scheduling message: the UE obtains the pointer information from the first scheduling message; the UE determines a preferred receiver configuration that is currently associated with the obtained pointer information; and the UE uses the determined preferred receiver configuration to receive the first scheduled downlink transmission.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: May 11, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Mattias Frenne, Sebastian Faxér, Stephen Grant, Claes Tidestav
  • Patent number: 10959141
    Abstract: There is provided a method for handling mobility synchronization measurements. The method is performed by a wireless device. The method comprises receiving an indication to perform mobility measurements on a set of transmission beams associated with a unique identity. The method comprises checking if the unique identity has previously been stored by the wireless device. The method comprises, if the unique identity has not previously been stored by the wireless device, performing mobility measurements on the set of transmission beams to determine synchronization information of the set of transmission beams. The method comprises storing the unique identity and the synchronization information of the mobility measurements.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: March 23, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (publ)
    Inventors: Andreas Cedergren, Andres Reial, Claes Tidestav
  • Publication number: 20210084518
    Abstract: Embodiments of the present disclosure relate to methods and network nodes and user equipment for measurement reporting. In example embodiments, a method implemented in a user equipment is provided. According to the method, the user equipment detects a plurality of beams from one or more of the UE's neighboring nodes, forms one measurement result of a group based on beam grouping information, and then send measurement report to the UE's serving node, including the measurement result of the group is included in the measurement report. According to the present disclosure, more neighboring nodes can be reported by the UE in a measurement report.
    Type: Application
    Filed: November 30, 2020
    Publication date: March 18, 2021
    Inventors: Rui Fan, Shaohua Li, Andres Reial, Claes Tidestav
  • Patent number: 10952212
    Abstract: A wireless communication device and method therein for adapting radio frequency receiving bandwidth are disclosed. The wireless communication device is configured to obtain information on respective bandwidths and center frequencies of a first and a second channels. The wireless communication device is further configured to determine a total receiving bandwidth to use at a time instant based on the respective bandwidths and time instants for reception of the first and second channels and adapt the radio frequency receiving bandwidth in the wireless communication device based on the determined total receiving bandwidth.
    Type: Grant
    Filed: January 30, 2017
    Date of Patent: March 16, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Joakim Axmon, Bengt Lindoff, Reza Moosavi, Edgar Ramos, Claes Tidestav