Patents by Inventor Mattias Frenne

Mattias Frenne 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: 20190372732
    Abstract: Some embodiments include a method in a wireless device capable of uplink transmission in a wireless communication network. The wireless device comprises a plurality of antenna ports. The method comprises determining one or more subsets of the plurality of antenna ports. Each subset of antenna ports comprises antenna ports that can be coherently combined to form a precoding of a transmission layer for transmitting from the subset of antenna ports. The method further comprises communicating an indication of the one or more subsets to a network node, and receiving, from the network node, an instruction of a precoding to use for an uplink transmission. The instruction is based on the indicated one or more subsets. The method further comprises precoding an uplink transmission based on the received instruction, and transmitting the transmission to the network node.
    Type: Application
    Filed: December 29, 2017
    Publication date: December 5, 2019
    Inventors: Sebastian FAXÉR, Fredrik ATHLEY, Mattias FRENNE, Virgíle GARCIA, Andreas NILSSON, Sven PETERSSON
  • Publication number: 20190372641
    Abstract: According to some embodiments, a method for use in a network node of transmitting channel state information reference signals (CSI-RS) comprises: transmitting, to the wireless device, an indication of the subset of PRBs that the wireless device should use to measure CSI-RS; and transmitting CSI-RS on the indicated subset of PRBs. According to some embodiments, a method for use in a wireless device of receiving CSI-RS comprises: receiving an indication of a subset of PRBs that the wireless device should use to measure CSI-RS associated with an antenna port; and receiving CSI-RS on the indicated subset of PRBs. In some embodiments, the indication of the subset of PRBs that the wireless device should use to measure CSI-RS comprises a density value and a comb offset.
    Type: Application
    Filed: May 15, 2017
    Publication date: December 5, 2019
    Inventors: Siva MURUGANATHAN, Mattias FRENNE, Shiwei GAO, Stephen GRANT, Robert Mark HARRISON
  • Patent number: 10492217
    Abstract: The present embodiments herein provide methods, apparatuses and a system for the purpose of scheduling resources to a UE (11) by a network node (12). The UE or CE (11) is configured to receive (210), from the network node (12), a control message, comprising information about a resource allocation as well as an indicator indicating whether a single-subframe scheduling scheme or a multi-subframe scheduling scheme. The CE (11) then retrieves the indicator and act according the information associated with the indicator.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: November 26, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Håkan Andersson, Andreas Bergström, Mattias Frenne, Johan Furuskog, Stefan Parkvall, Qiang Zhang
  • Patent number: 10484076
    Abstract: A network node (100), a wireless terminal (102) and methods therein, for supporting beam tracking in the wireless terminal (102) when a selected network beam (Bc) and a selected terminal beam (Tc) are used. The network node (100) identifies a set of candidate network beams (B) having spatial characteristics similar to the selected network beam (Bc), and signals the candidate network beams to the wireless terminal (102). When the network node (100) transmits beam reference signals in the candidate network beams using beam sweeping, the wireless terminal (102) measures received power using different candidate terminal beams (T) and estimates received power of combinations of beam reference signal and candidate terminal beam that have not been measured, based on the measured combinations of beam reference signal and candidate terminal beam.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: November 19, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Johan Furuskog, Håkan Andersson, Mattias Frenne, Johan Kåredal, John Skördeman, Tomas Sundin, Niclas Wiberg, Qiang Zhang
  • Patent number: 10484973
    Abstract: A user equipment, base station and method for transmitting semi-persistent channel state information (SP-CSI) on a physical uplink shared channel (PUSCH) are provided. The user equipment includes processing circuitry configured to receive a control signaling message the control signaling message configuring the user equipment with at least one SP CSI report configuration on the PUSCH, and the message identifying a SP CSI reporting periodicity. The user equipment also receives physical layer control signaling identifying and activating the at least one SP CSI report configuration. Transmitter circuitry is configured to transmit a plurality of SP CSI reports, the reports being transmitted with the periodicity and according to the physical layer control signaling and the control signaling message.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: November 19, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Robert Mark Harrison, Shiwei Gao, Mattias Frenne, Siva Muruganathan, Sebastian Faxér
  • Publication number: 20190349098
    Abstract: This disclosure pertains to a method for operating a first radio node (100) in a radio access network. The method comprises performing a calibration of the first radio node (100) based on calibration signaling received from a second radio node (200) and based on calibration configuration information, the calibration configuration information being received from the second radio node (200). The disclosure also pertains to related devices and methods.
    Type: Application
    Filed: December 22, 2016
    Publication date: November 14, 2019
    Inventors: Zhiyuan Jiang, Mattias Frenne, Qingyu Miao
  • Patent number: 10476714
    Abstract: Embodiments herein relate to a method performed by a radio-network node (12) for handling access to the radio-network node (12) from a wireless device (10) in the wireless communication network (1). The radio-network node determines one or more preamble configuration parameters indicating a length of a preamble for a physical random-access channel, PRACH, for the wireless device (10) based on one or more signal strength or quality measurements, and/or a load in the wireless communication network (1). The radio network node further transmits an indication of the determined one or more preamble configuration parameters to the wireless device.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: November 12, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Qiang Zhang, Håkan Andersson, Mattias Frenne, Johan Furuskog, Niclas Wiberg
  • Patent number: 10469138
    Abstract: Systems and methods relating to transmission and use of Discovery Reference Signal (DRS) signals are disclosed in herein. In some embodiments, a method of operation of a Transmission Point (TP) in a cellular communications network comprises transmitting, from the TP, a same one or more DRS signals using at least two different transmit beams in at least two different time resources. Each transmit beam is characterized by a direction in which it is transmitted. In this manner, the TP is enabled to reuse DRS resources, which in turn enables transmission of DRS signals on a larger number of transmit beams and, correspondingly, adaptation of measurement procedures at wireless devices to obtain measurements on those transmit beams.
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: November 5, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Mattias Frenne, Robert Mark Harrison, Muhammad Kazmi
  • Patent number: 10462796
    Abstract: Systems and method of reducing interference in a wireless communication system are provided. In one exemplary embodiment, a method by a wireless device (105, 200, 300a, 300b, 500, 1105, 1205, 1207) comprises determining (409, 909) an uplink precoder (107) based on channel measurements on first and second downlink reference signal resources. Further, the precoder enables a transmission (113) on an uplink reference signal resource that is precoded with the uplink precoder and that is quasi co-located (QCL) (121) with a transmission (111) on the first downlink reference signal resource but not QCL (123) with a transmission (115) on the second downlink reference signal resource.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: October 29, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Mattias Frenne, Svante Bergman, Martin Hessler, Lars Lindbom
  • Patent number: 10447368
    Abstract: A method performed by a radio device 6 for Channel State Information (CSI) feedback in a communication system 1 comprising a Radio Access Network (RAN) node 3 comprises receiving, from the RAN node, information about a CSI Reference Signal (RS) resource, a first CSI type and a second CSI type for feedback. The method also comprises receiving, from the RAN node, a CSI feedback request for CSI measurement and feedback of the first CSI type or the second CSI type. The method also comprises measuring CSI of the indicated type based on signals received on the CSI-RS resource. The method also comprises sending, to the RAN node, a CSI report of the requested CSI type. A corresponding method in a RAN node is furthermore presented herein.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: October 15, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Shiwei Gao, Robert Mark Harrison, Siva Muruganathan, Mattias Frenne, Stephen Grant
  • Patent number: 10448396
    Abstract: A base station (20A) is configured to transmit user data to a wireless device (16A) upon a first carrier (22). The base station (20A) identifies, from a set of transmission resources that is nominally allocated for transmission of user data upon the first carrier (22), a subset of transmission resources that is also nominally allocated for transmission of a reference or control signal either by the base station (20A) upon a second carrier (24) or by a neighboring base station (20B) upon the first carrier (22). The base station (20A) selectively transmits user data to the wireless device (16A) upon the first carrier (22) exclusive of this identified subset of transmission resources. The device (16A) in some embodiments obtains information indicating that the base station (20A) is selectively transmitting user data upon the first carrier (22) exclusive of the subset in this way.
    Type: Grant
    Filed: March 19, 2013
    Date of Patent: October 15, 2019
    Assignee: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventors: Daniel Larsson, Robert Baldemair, Jung-Fu Cheng, Mattias Frenne, Havish Koorapaty, Stefan Parkvall
  • Patent number: 10448274
    Abstract: Systems and methods for providing Channel State Information (CSI) feedback in a cellular communications network are disclosed. In some embodiments, a base station of a cellular communications network disables inter-subframe channel interpolation of CSI-RS estimates across subframes at the wireless device and receives one or more CSI reports from the wireless device that are generated by the wireless device with inter-subframe channel interpolation of CSI-RS estimates across subframes disabled in response to the base station disabling inter-subframe channel interpolation of CSI-RS estimates across subframes at the wireless device. In this manner, CSI feedback is improved particularly in embodiments in which the base station transmits a beamformed CSI-RS resource(s) and reuses the same CSI-RS resource(s) for different beams over time.
    Type: Grant
    Filed: October 8, 2018
    Date of Patent: October 15, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Mattias Frenne, Johan Furuskog, George Jöngren, Robert M. Harrison
  • Publication number: 20190313353
    Abstract: The scheduling flexibility of CSI reference signals enables time and frequency synchronization using multiple non-zero CSI-RSs transmitted in the same subframe, or using CSI-RSs transmitted in the same subframe with other synchronization signals. Also, multiple synchronization signals may be scheduled in the same subframe to enable fine time and frequency synchronization without cell-specific reference signals.
    Type: Application
    Filed: June 24, 2019
    Publication date: October 10, 2019
    Inventors: Havish Koorapaty, Mattias Frenne, Daniel Larsson, Jiann-Ching Guey, Jung-Fu Cheng
  • Patent number: 10433335
    Abstract: A method in a wireless device for performing random access to a network node. The method comprises receiving a set of downlink beam-specific reference signals, BRS, from the network node, and determining a preferred BRS BRS based on the received signal power for each BRS. The method also comprises selecting, based on the preferred BRS, a random-access resource to be used for transmitting a random-access attempt to the network node, as well as using the selected random-access resource when transmitting a random-access attempt to the network node, whereby the selection of random-access resource indicates to the network node which downlink beam is preferred by the wireless device to be used for downlink transmissions.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: October 1, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Mattias Frenne, Håkan Andersson, Johan Furuskog, Stefan Parkvall, Henrik Sahlin, Qiang Zhang
  • Publication number: 20190288823
    Abstract: One or more nodes transmit CSI-RS symbols in a set of N CSI-RS elements, each CSI-RS element in the set corresponding to at least one resource element in a time-frequency grid of resource elements. The nodes select, from the N CSI-RS elements, a first set of CSI-RS elements to be measured by a first wireless device, the first set comprising one or several of the N CSI-RS elements. The nodes also transmit, to the first wireless device, a message comprising a first K-bit indicator identifying the first set of CSI-RS elements, wherein K<N. The nodes then receive a measurement report. The first K-bit indicator is one of a predetermined set of K-bit indicators, where each member of the predetermined set of K-bit indicators uniquely corresponds to a CSI-RS element or group of CSI-RS elements from among the N CSI-RS, according to a predetermined mapping.
    Type: Application
    Filed: November 2, 2017
    Publication date: September 19, 2019
    Inventors: Mattias Frenne, Stephen Grant, Robert Mark Harrison
  • Publication number: 20190288815
    Abstract: Devices and methods for transmitting information in resource blocks between a base station and one or more communication devices are disclosed. In each resource block (RB) used for a data or control channel transmission, a plurality of non-overlapping regions of resource elements (REs) are defined. Each region is associated with one or multiple unique reference symbols (RSs), and may be further associated with one or more antenna ports. When user equipment (UE) demodulates the information it receives in a particular region of an RB, it uses the RS and/or antenna port associated with that region. The RS and/or antenna port information may be used, for example, to estimate a channel of the communication network or to demodulate and decode the data contained within the associated regions.
    Type: Application
    Filed: May 31, 2019
    Publication date: September 19, 2019
    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Havish KOORAPATY, Robert BALDEMAIR, Jung-Fu CHENG, Mattias FRENNE, Daniel LARSSON
  • Patent number: 10411779
    Abstract: According to one of the aspects, there is provided a method for providing channel state feedback related to a wireless link between a transmitter having multiple transmit antennas and a receiver having at least one receive antenna. The method comprises determining (S1) channel estimates for at least a subset of the effective channels between the transmitter and the receiver, each effective channel including a propagation channel, and signal paths in the transmitter and the receiver. The method also comprises determining (S2) frequency-independent and/or inter-antenna-independent channel state information associated with phase relaxation of at least the subset of the effective channels based on the channel estimates, and generating (S3) channel state feedback including at least a representation of the frequency-independent and/or inter-antenna-independent channel state information associated with the phase relaxation. The method further comprises transmitting (S4) the channel state feedback to the transmitter.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: September 10, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Mattias Frenne, Robert Mark Harrison, George Jöngren
  • Publication number: 20190268088
    Abstract: Methods and apparatus for configuring, in a network node of a wireless communication network, a reference signal resource used to perform channel-state information, CSI, measurements with one or more wireless devices. In an example method, a reference signal resource is aggregated in one or more of a frequency and a time domain, and a density characteristic of the aggregated reference signal resource that is to be transmitted to the one or more wireless devices is adjusted.
    Type: Application
    Filed: December 7, 2017
    Publication date: August 29, 2019
    Inventors: Stephen Grant, Mattias Frenne
  • Publication number: 20190260454
    Abstract: According to an aspect, a wireless node selects a set of reference signal antenna ports for use in transmitting data to other wireless nodes in a given transmit time interval, from a plurality of sets of reference signal antenna ports that are available for use and that include reference signal antenna ports having different reference signal densities in the frequency and/or time dimension. The wireless node sends a message to a second wireless node indicating a reference signal assignment and including an indication of the selected set of reference signal antenna ports.
    Type: Application
    Filed: October 9, 2017
    Publication date: August 22, 2019
    Inventors: Lars LINDBOM, Mattias FRENNE, Martin HESSLER, Karl WERNER
  • Publication number: 20190261344
    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: Application
    Filed: April 30, 2019
    Publication date: August 22, 2019
    Applicant: Telefonaktiebolaget LM Ericsson ( publ)
    Inventors: Stephen GRANT, Mattias Frenne, Andreas Nilsson, Claes Tidestav