Patents by Inventor Erik Eriksson

Erik Eriksson 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: 20190182008
    Abstract: A receiver apparatus receives a terminal-specific demodulation reference signal having a rank k and estimates an effective multi-layer channel response, using the received terminal-specific demodulation reference signal. The receiver demodulates first data symbols from first time-frequency resource elements, using the estimate of the effective multi-layer channel response and using a first symbols-to-virtual-antenna mapping matrix M to obtain nc modulation symbols from each of the first time-frequency resource elements, wherein nc>1 and wherein the first symbol-to-transmit-layer mapping matrix M has dimensions k by nc. The first data symbols are decoded to obtain downlink control information assigning second time-frequency resource elements to the receiver.
    Type: Application
    Filed: December 3, 2018
    Publication date: June 13, 2019
    Inventors: Jonas Fröberg Olsson, Erik Eriksson, Pål Frenger, Martin Hessler
  • Patent number: 10320530
    Abstract: A node (100) of a wireless communication network receives a synchronization signal from a radio device (10). Based on the received synchronization signal, the node determines a time alignment configuration for uplink radio transmissions from the radio device to the wireless communication network. Based on the received synchronization signal, the node further determines Hybrid Automatic Repeat Request feedback information for at least one downlink radio transmission from the wireless communication network to the radio device (10). The node (100) indicates the determined time alignment configuration to the radio device (10). Based on the determined Hybrid Automatic Repeat Request feedback information, the node controls retransmission of the at least one downlink radio transmission.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: June 11, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Pål Frenger, Erik Eriksson, Jonas Fröberg Olsson, Martin Hessler
  • Publication number: 20190168293
    Abstract: A casting mold including a copper plate and a plurality of optical fibers, having a plurality of temperature measuring points for the copper plate while casting. Molten metal is cast into the mold along an axis of, the optical fibers built-in the plate. A method for detecting temperature distribution of a molten metal in a casting mold having at least one copper plate, including determining by calculation or measurement an ideal molten flow of the metal, building-in a plurality of optical fibers into the copper plate based on flow, arranging the optical fibers inside at least the upper part of the copper plate, receiving the measurements of temperatures, and comparing the measurements of temperatures with a calculated/measured distribution of an ideal molten flow.
    Type: Application
    Filed: February 4, 2019
    Publication date: June 6, 2019
    Inventors: Conny Svahn, Jan-Erik Eriksson, Martin Sedén
  • Publication number: 20190174538
    Abstract: A technique for transmitting data (504) from a first station to a second station on a contention-based radio channel is described. As to a method aspect of the technique, the first station obtains a transmit identifier (506) for the first station from a set of transmit identifiers; transmits control information (502) including the transmit identifier (506) to the second station; and transmits the data (504) to the second station according to the control information (502), wherein the data includes a station identifier (508) for the first station, the station identifier (508) or a combination of the station identifier and the transmit identifier (506) being indicative of the first station.
    Type: Application
    Filed: August 10, 2016
    Publication date: June 6, 2019
    Inventors: Pål Frenger, Erik Eriksson, Jonas Fröberg Olsson, Martin Hessler
  • Patent number: 10306625
    Abstract: According to an aspect, there is provided a method of operating a network node in a communication network. The method comprises determining (121) a preferred configuration for one or more flexible subframes in a frame, the frame comprising one or more subframes allocated to uplink transmissions, one or more subframes allocated to downlink transmissions and one or more flexible subframes that can each be dynamically allocated to either uplink transmissions or downlink transmissions; and transmitting (125) a message to a neighbouring network node in the communication network through an inter node interface, the message indicating the preferred configuration for the one or more flexible subframes.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: May 28, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Angelo Centonza, Erik Eriksson, Lars Lindbom, Xinghua Song
  • Patent number: 10298309
    Abstract: A method performed by a wireless device (121) for determining the quality of uplink beamforming directions in a wireless communications network (100) is provided. The wireless device (121) receives configuration information indicating uplink channel state information, CSI, processes for uplink beamforming directions. Then, the wireless device (121) transmits reference signals for one or more uplink beamforming directions on uplink transmission resources of corresponding one or more uplink CSI processes. The wireless device (121) also receives one or more uplink CSI process reports for the one or more uplink CSI processes. Then, the wireless device (121) determines the quality of at least one uplink beamforming direction using the one or more uplink CSI process reports. A wireless device (121) for determining the quality of uplink beamforming directions in a wireless communications network (100) is also provided.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: May 21, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Martin Hessler, Erik Eriksson, Jonas Fröberg Olsson, Sven Petersson
  • Patent number: 10299203
    Abstract: According to an aspect of the teachings herein, dynamic cell activation uses the spectrum of a spectrum owner to provide wireless communication services in a location that may not be served by the spectrum owner. For example, a base station determines which one of two or more network operators is targeted by a wireless device requesting access, and correspondingly activates communication services for the device, using spectrum owned by the targeted network operator. Advantageously, the cell(s) may not be persistent and instead may be provided only when access is requested and then only in the spectrum of the targeted network operator(s). This approach offers power savings as compared to providing persistent cells for multiple network operators. Further, the contemplated arrangement makes it economic for third parties and network operators to use of operator-owned spectrum that might otherwise remain unexploited in the involved locations.
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: May 21, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Martin Hessler, Erik Eriksson, Pål Frenger, Göran Rune
  • Publication number: 20190150126
    Abstract: Systems and methods are disclosed for estimating one or more channel properties of a downlink from a cellular communications network based on quasi co-located antenna ports with respect to the one or more channel properties. In one embodiment, a user equipment receives a downlink subframe including a downlink control channel from the cellular communications network. The user equipment estimates one or more large-scale channel properties for an antenna port of interest in the downlink control channel based on a subset of reference signals that correspond to antenna ports in the cellular communications network that are quasi co-located with the antenna port of interest with respect to the one or more large-scale channel properties. As a result of using the quasi co-located antenna ports, estimation of the one or more large-scale channel properties is substantially improved.
    Type: Application
    Filed: January 8, 2019
    Publication date: May 16, 2019
    Inventors: Mattias Frenne, Stefano Sorrentino, Erik Eriksson
  • Publication number: 20190142307
    Abstract: According to an example aspect of the present invention, there is provided a personal multi-sensor apparatus comprising a memory configured to store plural sequences of sensor data elements and at least one processing core configured to: derive, from the plural sequences of sensor data elements, plural sensor data segments, each sensor data segment comprising time-aligned sensor data element sub-sequences from at least two of the sequences of sensor data elements, and assign a label to at least some of the sensor data segments based on the sensor data elements comprised in the respective sensor data segments, to obtain a sequence of labels
    Type: Application
    Filed: December 21, 2018
    Publication date: May 16, 2019
    Inventors: Tuomas Hapola, Mikko Martikka, Timo Eriksson, Erik Lindman
  • Publication number: 20190149303
    Abstract: A network node (700), a wireless device and methods therein for handling radio resources when feedback signalling is employed to indicate either an acknowledgement, ACK, or a non-acknowledgement, NACK, of correct reception of data transmitted by the wireless device. The network node (700) assigns a shared radio resource to a group of wireless devices (702) to be used for retransmission in case the feedback signalling for a transmission of data indicates a NACK. When receiving a set of concurrent transmissions of data from the wireless devices (702) where a subset of the concurrent transmissions of data is not received correctly, the network node (700) transmits a NACK to those wireless devices that transmitted the subset that was not received correctly. The network node (700) then receives on the shared radio resource a retransmission of at least one of the concurrent transmissions of data in the subset that was not received correctly from at least one wireless device to which said NACK was transmitted.
    Type: Application
    Filed: May 2, 2016
    Publication date: May 16, 2019
    Inventors: Osman Nuri Can Yilmaz, Nadia Brahmi, Erik Eriksson, Martin Hessler
  • Publication number: 20190150087
    Abstract: There is provided provision of timing information of a first timing information source using timing information of a second timing information source to a wireless device. A network node determines that second timing information from the second timing information source is available and that timing information from the first timing information source is derivable from the second timing information. The network node instructs the wireless device to use the second timing information as a source for deriving first timing information of the first timing information source.
    Type: Application
    Filed: November 28, 2018
    Publication date: May 16, 2019
    Inventors: Erik Eriksson, Pål Frenger, Martin Hessler
  • Patent number: 10292131
    Abstract: A core network node, e.g. MME, and a first radio network node, e.g., eNB, are comprised in a wireless communication network. The core network node receives information about capability of a communication device with regard to a maximum supported transport block size, “TBS”. The core network node transmits, to the first radio network node, information about a limitation of the capability of the communication device with regard to maximum supported TBS. The information about the limitation is based on the received information about capability.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: May 14, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Paul Schliwa-Bertling, Erik Eriksson, Emre Yavuz
  • Patent number: 10291375
    Abstract: A network node, a User Equipment, UE and methods therein, for handling a message transmitted over a radio link. The network node generates a first set of identity check bits for a first part of the message, based on the message and a first check identity, and further generates a second set of identity check bits valid for a second part of the message, based on the message, the first set of identity check bits and a second check identity. The message is then transmitted over the radio link with the first and second sets of identity check bits attached. The UE performs a first verification check using the second set of identity check bits and the second check identity, and performs a second verification check using the first set of identity check bits and the first check identity. The UE then handles the second message part based on the first verification check and the first message part based on the second verification check.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: May 14, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Jonas Fröberg Olsson, Erik Eriksson, Pål Frenger, Martin Hessler
  • Publication number: 20190140785
    Abstract: The present disclosure relates to a method used in a User Equipment (UE) for reporting Hybrid Automatic Repeat Request (HARQ) acknowledgement (ACK)/non-acknowledgement (NACK) for Physical Downlink Shared Channels (PDSCHs) in dynamic time division duplex (TDD) configurations. In the method, a plurality of PDSCHs are received in DownLink (DL) subframes associated with an UpLink (UL) subframe and indicated by a DL reference TDD configuration. The DL subframes are divided into a first subset of DL subframes and a second subset of DL subframes. The first subset of DL subframes is also indicated by an UL reference TDD configuration. A first set of Physical Uplink Control Channel (PUCCH) resource indices are assigned based on resources used in transmission of Physical Downlink Control Channels (PDCCHs) corresponding to the PDSCHs received in the DL subframes of the first subset of DL subframes.
    Type: Application
    Filed: November 2, 2018
    Publication date: May 9, 2019
    Inventors: Shaohua Li, Erik Eriksson, Rui Fan, Zhiheng Guo, Jinhua Liu, Xinghua Song
  • Publication number: 20190140795
    Abstract: A cellular network supports radio communication based on a first configuration which organizes a time-frequency space in first resource elements and radio communication based on a second configuration which organizes the time-frequency space in second resource elements and assigns at least one of the second resource elements to a utilization which is in conflict with the radio communication based on the first configuration. A node of the cellular network sends an indication to a communication device. The indication comprises time domain and/or frequency domain information for defining a pattern comprising at least one of the first resource elements which is to be disregarded by the communication device when performing radio communication with the cellular network based on the first configuration and/or the second configuration.
    Type: Application
    Filed: July 20, 2018
    Publication date: May 9, 2019
    Inventors: Jonas Fröberg Olsson, Andreas Bergström, Erik Eriksson, Pål Frenger, Martin Hessier
  • Patent number: 10277286
    Abstract: It is presented a method for determining a position of a wireless device, the method being performed in a network node connected to a plurality of remote radio head devices each comprising a first antenna device which can be used for a first MIMO, multiple input multiple output, stream and a second antenna device which can be used for a second MIMO stream. The method comprises the steps of: sending a first cell identifier for transmission on both the first antenna device and the second antenna device of each one of the remote radio head devices; sending a second cell identifier, for transmission on an antenna device of only a specific remote radio head device; receiving a measurement report from the wireless device associated with the second cell identifier; and determining a position of the wireless device based on the received measurement report.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: April 30, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Chenguang Lu, Miguel Berg, Elmar Trojer, Per-Erik Eriksson
  • Patent number: 10278194
    Abstract: Base station and User Equipment (UE) and methods to be performed therein for communication using a dynamic transmission parameter. The method to be performed in a base station comprises scheduling of transmission resources to a UE in an OFDM symbol associated with a dynamic parameter value. The base station is assumed to be associated with a carrier where a radio frame comprises at least one OFDM symbol associated with a fixed parameter value and at least one OFDM symbol associated with a dynamic parameter value, where the parameter is a cyclic prefix, CP, or a subcarrier spacing, ?f. The method further comprises determining a value of the parameter based on a characteristic of a radio link associated with the UE, and applying the determined value of the parameter when communicating with the UE in the scheduled transmission resources.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: April 30, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Pål Frenger, Erik Eriksson
  • Publication number: 20190124662
    Abstract: It is provided a method for reducing bit rate requirement over an uplink fronthaul link. The method is performed in a fronthaul transmitter of a radio network node and comprises the steps of: determining a group of frequency-domain resource elements having been received over a wireless channel (40); estimating channel information (42); reducing a number of bits for representing the respective frequency-domain resource element, to thereby obtain a modified resource element (44); transmitting the modified resource elements of the group over the fronthaul link to a fronthaul receiver (46); and transmitting compression metadata (48), indicating how the reduction was performed, over the fronthaul link to the fronthaul receiver which performs the steps of receiving the modified resource elements (50), receiving the compression metadata (52) and expanding the resource elements to increase the number of bits for representing the frequency-domain resource elements (54).
    Type: Application
    Filed: June 30, 2016
    Publication date: April 25, 2019
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Miguel Berg, Chenguang Lu, Daniel Cederholm, Per-Erik Eriksson
  • Publication number: 20190124602
    Abstract: Systems and methods are disclosed for adjusting Radio Link Monitoring (RLM), Radio Link Failure (RLF) detection, RLF recovery, and/or connection establishment failure detection for wireless devices (16) in a cellular communications network (10) depending on mode of operation. In one embodiment, a node (14, 16) in the cellular communications network (10) determines whether a wireless device (16) (e.g., a Machine Type Communication (MTC) device) is to operate in a long range extension mode of operation or a normal mode of operation. The node (14, 16) then applies different values for at least one parameter depending on whether the wireless device (16) is to operate in the long range extension mode or the normal mode. The at least one parameter includes one or more RLM parameters, one or more RLF detection parameters, and/or one or more RLF recovery parameters.
    Type: Application
    Filed: December 21, 2018
    Publication date: April 25, 2019
    Inventors: Kumar Balachandran, Johan Bergman, Konstantinos Dimou, Erik Eriksson, Anders Wallén
  • Patent number: 10251185
    Abstract: A method of assigning transmission resources by an access node includes allocating first transmission resources to a first device, and allocating second transmission resources to a second device, wherein the second transmission resources partially, but not completely, overlap the first transmission resources. An amount of overlap between the first transmission resources and the second transmission resources may be based on a target error rate for decoding transmissions received from the first device and the second device and/or a signal to interference plus noise ratio (SINR) of transmissions from the first device and the second device. Related access nodes are disclosed.
    Type: Grant
    Filed: November 4, 2014
    Date of Patent: April 2, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Erik Eriksson, Martin Hessler