Patents by Inventor Andreas Nilsson

Andreas Nilsson 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: 20210368456
    Abstract: There is provided mechanisms for transmission of synchronization signals. A method is performed by a network node. The method comprises transmitting polarized bursts of SSB in beams. One SSB is transmitted per each beam in each burst. Polarization of at least one of the SSBs changes between two consecutive bursts of the SSBs.
    Type: Application
    Filed: March 26, 2019
    Publication date: November 25, 2021
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventor: Andreas NILSSON
  • Patent number: 11184859
    Abstract: There is provided mechanisms for transmitting uplink reference signals. A method is performed by a terminal device. The method comprises obtaining, from a network node, a configuration of transmission of the uplink reference signals. The configuration comprises an indication of a first frequency interval in which the uplink reference signals are to be transmitted. The method comprises distributing transmission power available for transmitting the uplink reference signals over the first frequency interval based on channel information for the first frequency interval. The method comprises transmitting the uplink reference signals in accordance with the distributed transmission power.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: November 23, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Andreas Nilsson, Sebastian Faxér, Niklas Wernersson
  • Patent number: 11184901
    Abstract: An exemplary method provides for a user equipment (UE) receiving a first reference signal (RS) that was transmitted by a base station using a first transmit beam. The UE performs a first RS measurement with respect to the received first RS, producing a first measurement result. The UE receives a second RS that was transmitted by the base station using the first transmit beam. The UE performs a second RS measurement with respect to the received second RS, producing a second measurement result. The UE determines that a condition is satisfied based on determining that the base station has transmitted to the UE a measurement result filtering indicator indicating that the UE may filter its first and second measurement results. The UE derives a filtered measurement result based on the first measurement result and the second measurement result, and selects a beam based on the filtered measurement result.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: November 23, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Andreas Nilsson, Sebastian Faxér
  • Publication number: 20210359805
    Abstract: There is provided mechanisms for transmission of reference signals. A method is performed by a terminal device. The terminal device comprises at least two physical antenna ports. The method comprises obtaining channel information. The method comprises determining, for at least one given precoder in a codebook, an uplink reference signal to physical antenna port mapping based on the channel information. The method comprises transmitting uplink reference signals in the physical antenna ports according to the determined mapping.
    Type: Application
    Filed: April 29, 2019
    Publication date: November 18, 2021
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Sven PETERSSON, Fredrik ATHLEY, Andreas NILSSON, Roy TIMO, Xinlin ZHANG
  • Publication number: 20210359736
    Abstract: There is provided mechanisms for beamformed transmission towards groups of terminal devices. Each terminal device is, according to a bandwidth part (BWP) configuration, configured with a BWP set. One BWP in the BWP set is an active BWP for the terminal device. The method is performed by a network node. The method comprises configuring a new terminal device entering one of the groups with an active BWP based on frequency overlap avoidance with the active BWPs of the terminal devices already part of the group entered. The method comprises serving all terminal devices by performing beamformed transmission towards the terminal devices in accordance with the active BWPs.
    Type: Application
    Filed: May 16, 2019
    Publication date: November 18, 2021
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Sven PETERSSON, Andreas NILSSON, Fredrik ATHLEY
  • Publication number: 20210360649
    Abstract: A TRP selects two UEs that have potential for MU-MIMO transmission, and the TRP then measures signal and interference for each panel in both UEs based on UL beam management for a set of one or more candidate TRP beams. Based on the measurements, the TRP determines if multi-user transmission (i.e., co-scheduling of the two UEs) is possible.
    Type: Application
    Filed: February 14, 2019
    Publication date: November 18, 2021
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Fredrik ATHLEY, Andreas NILSSON
  • Patent number: 11167796
    Abstract: A method for assisting a driver of a host vehicle in avoiding a collision, the method including: detecting a target in the vicinity of the vehicle; determining that the host vehicle is travelling on a collision course with the target; detecting a set of road markers on a side of the target; detecting a free space on the side of the road markers opposite the target side of the road markers, and when a collision with the target is predicted to occur within a predetermined time period and no driver initiated steering action for avoiding the collision course has been detected, providing a steering guidance to the driver of the host vehicle including altering of a steering wheel angular orientation for momentarily steering the host vehicle towards the road markers to indicate an evasive steering action to the driver.
    Type: Grant
    Filed: July 18, 2019
    Date of Patent: November 9, 2021
    Assignee: Volvo Car Corporation
    Inventors: Christoffer Modig, Mats Jonasson, Derong Yang, Rickard Nilsson, David Silva Montemayor, Andreas Lindberg
  • Publication number: 20210336679
    Abstract: When a TRP performs a TRP beam sweep for a WD with multiple antenna arrangements and the WD is expected to perform an UL transmission (e.g., the WD has at least a threshold amount of data in its transmit buffer) and UL beam selection is based on DL beam selection, in one embodiment the WD takes the available output power of the different antenna arrangements in to account during RSRP calculations for the different candidate TRP TX beams such that the RSRP from an antenna arrangement that has lower available output power is weighted less compared to the RSRP measured from an antenna arrangement that has higher available output power.
    Type: Application
    Filed: February 14, 2019
    Publication date: October 28, 2021
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Sebastian FAXÉR, Andreas NILSSON
  • Publication number: 20210337397
    Abstract: A UE determines P-MPR for different candidate UE beams. Then, during a P2 beam sweep, instead of the UE generating as wide UE RX beam as possible, the UE consider the determined P-MPR for the candidate UE beams and generates a UE RX beam with as large beamwidth as possible, but with the condition to reduce the antenna gain in directions of the UE beams with large P-MPR.
    Type: Application
    Filed: April 30, 2019
    Publication date: October 28, 2021
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventor: Andreas NILSSON
  • Patent number: 11153003
    Abstract: There is provided mechanisms for generating cell-specific signals using an antenna array with dual-polarized antenna elements. A method is performed by a network device. The method comprises obtaining antenna weights for two sector-specific signals, each sector-specific signal giving rise to a respective sector-specific radiation pattern. The method comprises generating a first cell-specific signal, the first cell-specific signal giving rise to a first cell-specific radiation pattern, wherein antenna weights for the first cell-specific signal are determined such that the radiation pattern matches both sector-specific radiation patterns.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: October 19, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Andreas Nilsson, David Astely, Niklas Jaldén
  • Publication number: 20210320692
    Abstract: Disclosed is a method of a first wireless communication device configured for massive multi-user multiple-input multiple output (MU-MEMO) communication with two or more second wireless communication devices. The first wireless communication device comprises a plurality of antenna ports, each antenna port associated with at least one of a digital-to-analog converter (DAC) and an analog-to-digital converter (ADC). The method comprises acquiring an estimation of a communication channel between the in first wireless communication device and the second wireless communication devices and acquiring an estimation of a quantization distortion caused by either DACs or ADCs. The method also comprises jointly determining (for the two or more second wireless communication devices) a transmission power and a transmission resource for each of the second wireless communication devices, wherein the joint determination is based on the estimation of the communication channel and on the estimation of the quantization distortion.
    Type: Application
    Filed: June 20, 2018
    Publication date: October 14, 2021
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Sven JACOBSSON, Mikael COLDREY, Andreas NILSSON, Giuseppe DURISI
  • Patent number: 11139864
    Abstract: There is provided mechanisms for transmission of reference signals. A method is performed by a terminal device. The terminal device comprises at least two physical antenna ports. The method comprises creating a virtual antenna port for, and applied over, at least two of the physical antenna ports. The method comprises transmitting, in the virtual antenna port, as many uplink reference signals as there are physical antenna ports.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: October 5, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Sven Petersson, Fredrik Athley, Andreas Nilsson, Roy Timo, Xinlin Zhang
  • Patent number: 11139870
    Abstract: There is provided mechanisms for transmission of reference signals. A method is performed by a terminal device. The terminal device is configured for codebook based precoding. The terminal device comprises at least two physical antenna ports. The method comprises transmitting, in all physical antenna port, as many uplink reference signals as there are physical antenna ports in total.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: October 5, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Sven Petersson, Fredrik Athley, Andreas Nilsson, Roy Timo, Xinlin Zhang
  • Patent number: 11133855
    Abstract: A method for assisting uplink (UL) beam management in a user equipment (UE) is provided. The method includes evaluating a measure of a reduction in maximum allowed power for a first set of candidate beams for UL beam management; determining a second set of candidate beams for UL beam management based at least in part on the evaluating the measure of a reduction in maximum allowed power for the first set of candidate beams; and performing a UL beam management procedure using the second set of candidate beams.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: September 28, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventor: Andreas Nilsson
  • Publication number: 20210288702
    Abstract: In one aspect there is provided a process for beam management. In some embodiments, the process includes: a TRP classifying a data session between the TRP and a UE into one of at least two classifications; and the TRP selecting a beam management procedure for managing one or more BPLs between the TRP and the UE based on the classification into which the data session is classified.
    Type: Application
    Filed: December 29, 2017
    Publication date: September 16, 2021
    Inventors: Stephen Grant, Mattias Frenne, Andreas Nilsson, Claes Tidestav
  • Publication number: 20210288710
    Abstract: There is provided mechanisms for beam selection. A method is performed by a first radio transceiver device. The method comprises obtaining link quality estimates of a radio signal conveyed to the first radio transceiver device from a second radio transceiver device by means of at least a first beam taken from a first beam set and a second beam. The second beam is wider than the first beam. The method comprises selecting which one of the first beam and the second beam to use for continued communications of radio signals with the second radio transceiver device in accordance with a comparison between the link quality estimates of the first beam and compensated link quality estimates of the second beam.
    Type: Application
    Filed: January 25, 2021
    Publication date: September 16, 2021
    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Andreas NILSSON, Andres REIAL
  • Patent number: 11121835
    Abstract: A method of identifying reference signal resources to be used in a transmission by a wireless device is disclosed. The method comprises a wireless device receiving signaling configuring the wireless device with a plurality of reference signal resource groups, each group comprising a plurality of reference signal resources. The wireless device subsequently receives an indication, in a control channel, of a selection of reference signal resources to be used. Each of the plurality of reference signal resources to be used is selected from a different one of the plurality of reference signal resource groups such that reference signal resources belonging to the same reference signal resource group are not selected for simultaneous use. A reference signal is then transmitted to a network node in the network using the indicated selection of reference signal resources.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: September 14, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Robert Mark Harrison, Sebastian Faxér, Andreas Nilsson, Sven Petersson
  • Publication number: 20210281305
    Abstract: In a multi-BPL scenario, some form of beam-related indication is desirable to provide assistance to the UE in setting its Rx spatial filtering configuration to receive PDSCH. The assistance to the UE is in the form of a certain indicator indicating a spatial QCL assumption between PDSCH DMRS antenna port(s) and DL RS (e.g., CSI-RS) antenna port(s), such as a preferred CSI-RS resource that was measured and reported previously.
    Type: Application
    Filed: May 25, 2021
    Publication date: September 9, 2021
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Stephen GRANT, Mattias FRENNE, Eleftherios KARIPIDIS, Andreas NILSSON
  • Patent number: 11115984
    Abstract: Some embodiments of this disclosure provide a method performed by one or more transmission points, TRPs, for communicating with a user equipment, UE. In some embodiments, the method includes: using a first transmit, TX, beam to communicate with the UE; receiving, from the UE, information indicating that the UE has determined that the first TX beam has experienced a beam failure; and after the information is received, using a second TX beam to communicate with the UE.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: September 7, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Stephen Grant, Mattias Frenne, Andreas Nilsson, Claes Tidestav
  • Publication number: 20210258050
    Abstract: There is provided mechanisms for transmitting a two-port reference signal from an analog antenna array of an antenna arrangement. The analog antenna array comprises antenna elements of two polarizations. All antenna elements of each polarization are connected to a respective physical antenna port. A method comprises generating two virtual antenna ports, one for each of the two ports of the reference signal. The method comprises feeding the reference signal from the two virtual antenna ports to the two physical antenna ports via a virtualization network. The method comprises transmitting, via the antenna elements, the reference signal from the two physical antenna ports over a composite beamwidth in different spatial coverage per polarization for each of the two physical antenna ports whereby the transmitted reference signal, over the composite beamwidth, varies between having rank 1 and rank 2.
    Type: Application
    Filed: June 12, 2018
    Publication date: August 19, 2021
    Inventors: Andreas Nilsson, Sven Petersson, Fredrik Athley, Niklas Wernersson