Patents by Inventor Fredrik Nordstrom

Fredrik Nordstrom 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: 10601659
    Abstract: In MIMO wireless communication networks, receiver MIMO antenna parameters are not static over time. For example, the MIMO channel correlation is higher for high frequency bands than for low frequency bands. This variability of the receiver antenna parameters introduces uncertainty based the reported CSI (e.g., CQI, PMI, RI) if the network uses only static assumptions for such antenna parameter values. In embodiments, the UE determines the current status of its receive antenna parameters—such as number, configuration, correlation, and power imbalance—and transmits this information to the network (e.g., serving BS). The network node then based on the received information performs one or more radio operational tasks leading to more efficient use of radio resources and enhanced system performance.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: March 24, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Maomao Chen, Fredrik Nordström
  • Publication number: 20200092831
    Abstract: A method and a network node (300) for enabling wireless communication with a wireless device (302), wherein no more than a pre-determined maximum total transmit power is available for downlink transmission by the network node (300). When detecting that the wireless device (302) requires an extended transmission range (300B) which is larger than a nominal transmission range (300A), a boosted transmit power is determined and used for transmitting a first set of channels and/or signals to be used by the wireless device (302) to achieve the extended transmission range (300B). An attenuated transmit power is also determined and used for transmitting a second set of channels and/or signals not included in the first set of channels and/or signals, which provides a slightly reduced transmission range (300C) for the second set.
    Type: Application
    Filed: December 22, 2016
    Publication date: March 19, 2020
    Inventors: Magnus ÅSTRÖM, Bo HAGERMAN, Bengt LINDOFF, Fredrik NORDSTRÖM
  • Patent number: 10594426
    Abstract: A method of a communication device arranged to operate in a cellular communication system is presented. The method comprises receiving a control symbol from a network node operating a cell of the cellular communication system and serving the communication device, determining interference situation for the control symbol, selecting an interference mitigation algorithm based on the determined interference, and performing the selected interference mitigation algorithm for the received control symbol. A communication device arranged to perform interference mitigation for received control symbols by the method, and a computer program for the communication device are also presented.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: March 17, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Fredrik Nordström, Maomao Chen
  • Publication number: 20200068572
    Abstract: A method and network node for enabling mobility measurements performed by wireless devices. A set of resource blocks are distributed across an available frequency bandwidth, and a pre-defined maximum average transmit power per resource block is available for transmission by the network node. The network node transmits (5:3A) a subset of resource blocks using a first transmit power per resource block which is higher than the pre-defined maximum average transmit power per resource block. The network node also transmits (5:3B) other resource blocks in the set not included in the subset using a second transmit power per resource block which is lower than the pre-defined maximum average transmit power per resource block so that the total transmit power used for transmitting the set of resource blocks does not exceed a total available maximum transmit power.
    Type: Application
    Filed: October 24, 2016
    Publication date: February 27, 2020
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Bengt LINDOFF, Magnus ÅSTRÖM, Bo HAGERMAN, Fredrik NORDSTRÖM
  • Patent number: 10570569
    Abstract: There is provided a Kraft paper, wherein: the grammage according to ISO 536 is 60-120 g/m2; the bending resistance index in the machine direction is 105-200 Nm7/kg3; the bending resistance index in the cross direction is 60145 Nm7/kg3 (the bending resistance indexes are tested according to ISO 2493 using a bending angle of 15° and a test span length of 10 mm); the strain at break according to ISO 1924-3 in the machine direction is at least 3%; and the strain at break according to ISO 1924-3 in the cross direction is at least 5%.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: February 25, 2020
    Assignee: BILLERUDKORSNAS AB
    Inventors: Fredrik Nordstrom, Marie Svending
  • Publication number: 20200015125
    Abstract: A method of an electronic communication device is disclosed. The electronic communication device is arranged to operate in a radio communication system, wherein the radio communication system has capability of performing link adaptation by adapting one or more parameters of communication in view of a quality of a radio link between a network node of the radio communication system and the electronic communication device. The method comprises determining a link adaptation status for the electronic communication device, and transmitting information related to the determined link adaptation status to one or more network nodes of the radio communication system. A method of a network node, an electronic communication device, a network node, and computer programs are also disclosed.
    Type: Application
    Filed: September 7, 2019
    Publication date: January 9, 2020
    Inventors: Maomao Chen, Fredrik Nordstrom
  • Patent number: 10517053
    Abstract: A network sync signal with unknown frequency location is detected by sampling the received signal over a band of interest in frequency, and over the repetition period of the sync signal in time. The signal is converted to the frequency domain. Sub-bands of the frequency-domain signal, corresponding to different possible sync locations and frequency offsets, are extracted and converted to the time domain, where the sync signal is searched over the reception window length using time-domain matched filtering.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: December 24, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Magnus Åström, Fredrik Nordström, Andres Reial
  • Publication number: 20190349946
    Abstract: The solution presented herein is directed to communication devices having a plurality of circuits that may be configured into a plurality of different receiver configurations (or classes), where each receiver configuration uses a different technique for processing a received signal. The solution presented herein enables the communication device to select at least one receiver configuration/class for processing received signals. To that end, a performance metric is determined for each receiver configuration in a subset of receiver configurations using at least one of a received signal, a signal strength determined for the corresponding receiver configuration, and an interference level determined for the corresponding receiver configuration. At least one of the receiver configurations in the subset is selected responsive to the determined performance metrics, and in some cases also in response to a scheduled amount of data.
    Type: Application
    Filed: March 13, 2017
    Publication date: November 14, 2019
    Inventors: Magnus Åström, Maomao Chen, Fredrik Nordström, Torgny Palenius
  • Patent number: 10448355
    Abstract: A technique for locating a radio device within a region covered by a radio access network, RAN is described. The RAN includes a plurality of transmission and reception points, TRPs. As to a method aspect of the technique, reports indicative of measurements performed by the radio device based on radio beams transmitted from different TRPs of the RAN are received. Each of the radio beams correspond to a radio propagation direction from the respective TRP. The radio device is located based on a combination of the radio propagation directions corresponding to radio beams transmitted from at least two of the TRPs of the RAN.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: October 15, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Andres Reial, Fredrik Nordström, Magnus Åström
  • Patent number: 10440613
    Abstract: A method of an electronic communication device is disclosed. The electronic communication device is arranged to operate in a radio communication system, wherein the radio communication system has capability of performing link adaptation by adapting one or more parameters of communication in view of a quality of a radio link between a network node of the radio communication system and the electronic communication device. The method comprises determining a link adaptation status for the electronic communication device, and transmitting information related to the determined link adaptation status to one or more network nodes of the radio communication system. A method of a network node, an electronic communication device, a network node, and computer programs are also disclosed.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: October 8, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (publ)
    Inventors: Maomao Chen, Fredrik Nordstrom
  • Publication number: 20190281574
    Abstract: A technique for locating a radio device within a region covered by a radio access network, RAN is described. The RAN includes a plurality of transmission and reception points, TRPs. As to a method aspect of the technique, reports indicative of measurements performed by the radio device based on radio beams transmitted from different TRPs of the RAN are received. Each of the radio beams correspond to a radio propagation direction from the respective TRP. The radio device is located based on a combination of the radio propagation directions corresponding to radio beams transmitted from at least two of the TRPs of the RAN.
    Type: Application
    Filed: March 6, 2018
    Publication date: September 12, 2019
    Inventors: Andres REIAL, Fredrik NORDSTRÖM, Magnus ÅSTRÖM
  • Publication number: 20190271757
    Abstract: A method performed in a server node associated with a cellular communication system is disclosed. The method is for validation of a first position indication of a wireless communication device, wherein the wireless communication device is adapted to operate in connection with the cellular communication system. The first position indication is obtained via the wireless communication device by a first positioning system. The method comprises obtaining a serving cell identification of the wireless communication device, obtaining a second position indication of the wireless communication device based on the serving cell identification, and determining whether the first position indication is valid based on whether a metric based on the first and second position indications meets a validation criterion.
    Type: Application
    Filed: September 28, 2016
    Publication date: September 5, 2019
    Inventors: Bengt Lindoff, Lars Andersson, Magnus Åström, Patrik Ekdahl, Fredrik Nordström, Andres Reial
  • Publication number: 20190230594
    Abstract: A wireless device and a method therein for performing one or more operations based on available energy. The wireless device is configured to operate in a wireless communications network. Based on an amount of energy available for operation and based on control information, the wireless device determines an allocation of the amount of available energy between at least a first energy part and a second energy part. The first energy part is to be used in a sensing operation using a sensing operation configuration and the second energy part is to be used in a communicating operation using a communicating operation configuration. The wireless device performs based on the determined allocation, one or more operations out of: the sensing operation using the first energy part and the sensing operation configuration, and the communicating operation using the second energy part and the communicating operation configuration.
    Type: Application
    Filed: September 29, 2016
    Publication date: July 25, 2019
    Inventors: Bengt Lindoff, Lars Andersson, Magnus Astrom, Fredrik Nordstrom, Andres Reial
  • Patent number: 10333683
    Abstract: Different Out-of-sync thresholds are defined for Radio Link Monitoring by a UE having a selectively enabled advanced receiver feature. When the advanced receiver feature is disabled, the UE monitors received signal quality and compares a signal quality metric to a first threshold developed for a reference receiver. When the advanced receiver feature is enabled, the UE compares the signal quality metric to a second threshold indicating lower signal quality than the first threshold. In either case, if the signal quality meets the respective threshold, the UE goes Out-of-sync. The Out-of-sync UE continues to monitor received signal quality. Regardless of whether the advanced receiver feature is enabled or not, a third threshold, developed for the reference receiver, is applied to determine when to return to In-sync. In one embodiment, the reference receiver enables two antennas, and the advanced receiver feature is enabling four antennas.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: June 25, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Torgny Palenius, Christopher Callender, Maomao Chen, Fredrik Nordström
  • Patent number: 10306524
    Abstract: Antenna nodes are controlled to maintain a respective radio cell, each cell having one and the same physical cell identity. The antenna nodes are further controlled to maintain the respective radio cell in a single direction substantially along a path such that each wireless communication device, during movement in a movement direction along the path, can connect either to consecutive antenna nodes towards which the wireless communication device is moving or connect to consecutive antenna nodes away from which the wireless communication device is moving.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: May 28, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (publ)
    Inventors: Joakim Axmon, Peter Alriksson, Niklas Andgart, Christopher Callender, Maomao Chen, Magnus Larsson, Fredrik Nordstrom, Torgny Palenius
  • Publication number: 20190141646
    Abstract: A network sync signal with unknown frequency location is detected by sampling the received signal over a band of interest in frequency, and over the repetition period of the sync signal in time. The signal is converted to the frequency domain. Sub-bands of the frequency-domain signal, corresponding to different possible sync locations and frequency offsets, are extracted and converted to the time domain, where the sync signal is searched over the reception window length using time-domain matched filtering.
    Type: Application
    Filed: March 15, 2018
    Publication date: May 9, 2019
    Inventors: Magnus Åström, Fredrik Nordström, Andres Reial
  • Publication number: 20190037428
    Abstract: A communication device is arranged to operate in a cellular communication system and report Channel State Information, CSI, including a channel quality by a Channel Quality Indicator, CQI, which reports a CQI set. The communication device comprises a receiver arranged to receive antenna-specific reference signals, a channel estimator arranged to evaluate channel conditions from the reference signals to determine values of a CQI set, a reporting processor arranged to determine whether a bounded differential reporting format prevents values of the CQI set to be accurately reported, and to determine a CQI set such that the bounded differential reporting format allows the values of the CQI set to be reported to reduce under-reporting or over-reporting errors that arise from the use of the bounded differential reporting format, and to form a CSI report including the values of the CQI set using the bounded differential reporting format, and a transmitter arranged to send the CSI report.
    Type: Application
    Filed: December 5, 2016
    Publication date: January 31, 2019
    Inventors: Magnus Åström, Maomao Chen, Fredrik Nordström, Torgny Palenius
  • Publication number: 20180327975
    Abstract: There is provided a Kraft paper, wherein: the grammage according to ISO 536 is 60-120 g/m2; the bending resistance index in the machine direction is 105-200 Nm7/kg3; the bending resistance index in the cross direction is 60145 Nm7/kg3 (the bending resistance indexes are tested according to ISO 2493 using a bending angle of 15° and a test span length of 10 mm); the strain at break according to ISO 1924-3 in the machine direction is at least 3%; and the strain at break according to ISO 1924-3 in the cross direction is at least 5%.
    Type: Application
    Filed: November 3, 2016
    Publication date: November 15, 2018
    Inventors: Fredrik Nordstrom, Marie Svending
  • Patent number: 10110265
    Abstract: A method (100) in a network node serving a User Equipment (UE) capable of network assisted interference cancellation is disclosed. The method involves a signaling (104) of an indication to the UE indicating whether the UE should enable or disable (108) the network assisted interference cancellation, or whether the UE should autonomously choose (110) to enable or disable the network assisted interference cancellation. The enabling or disabling is done for at least one of demodulating the downlink channel or computing the channel state information. The method further involves a receiving (106) of information from the UE about whether the network assisted interference cancellation has been used by the UE for at least one of demodulating the downlink channel and computing the channel state information. A related method in a UE is also disclosed, together with the network node and the UE as such.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: October 23, 2018
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Stefania Sesia, Robert Mark Harrison, George Jöngren, Bo Lincoln, Lars Lindbom, Fredrik Nordström
  • Publication number: 20180294907
    Abstract: A method of a communication device arranged to operate in a cellular communication system is presented. The method comprises determining interference mitigation capabilities for control symbols, transmitting information about the determined interference mitigation capabilities to a network node of the cellular communication system. Also a method of a network node arranged to operate in a cellular communication system. The method comprises receiving from a communication device operating in the cellular communication system information about determined interference mitigation capabilities of the communication device for control symbols, and adapting a performing of one or more radio operation tasks based on the received information. Communication device, network node, and computer programs for the communication device and network node are also presented.
    Type: Application
    Filed: October 3, 2016
    Publication date: October 11, 2018
    Inventors: Maomao Chen, Fredrik Nordström