Patents by Inventor Christian Bergljung

Christian Bergljung 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: 20190200305
    Abstract: According to certain embodiments, a method by a wireless device is provided for determining a maximum output power. The method includes obtaining, by the wireless device, a first time resource for transmitting a first signal in ?a first cell on a first carrier and a second time resource for transmitting a second signal in a second cell on a second carrier. Based on the first time resource and the second time resource, the maximum output power is 10 determined. The first signal and the second signal are transmitted based on the determined maximum output power.
    Type: Application
    Filed: November 3, 2017
    Publication date: June 27, 2019
    Inventors: Muhammad KAZMI, Christian BERGLJUNG, Christopher CALLENDER, Dominique EVERAERE, Imadur RAHMAN, Laetitia FALCONETT, Mårten SUNDBERG
  • Publication number: 20190174433
    Abstract: A method is performed by a wireless device. The method comprises determining a first configured maximum transmit power value (P_cmax1) for transmitting in a first radio access technology (RAT). The P_cmax1 is determined based on one or more transmissions of the first RAT. The method further comprises determining a second configured maximum transmit power value (P_cmax2) for transmitting in a second RAT. The P_cmax2 is determined based on transmissions of both the first RAT and the second RAT. The method further comprises performing a transmission in the first RAT at a power less than or equal to the P_cmax1. The method further comprises performing a transmission in the second RAT at a power less than or equal to the P_cmax2.
    Type: Application
    Filed: November 29, 2018
    Publication date: June 6, 2019
    Inventors: Ravikiran NORY, Christian BERGLJUNG, Daniel LARSSON
  • Publication number: 20190159047
    Abstract: The present invention relates to a method and apparatus for testing mobile terminals in an OFDMA system, in which all or part of available downlink radio resources in a cell are transmitted. A processing unit in a test apparatus splits a set of contiguous resource blocks into separate contiguous portions. A first contiguous portion of the set of resource blocks is allocated to users of a first type, and a second contiguous portion of the set of resource blocks is allocated to users of a second type. A transmitter in the test apparatus transmits test signals to the users of the first type and the second type using the at least one contiguous set of resource blocks.
    Type: Application
    Filed: January 18, 2019
    Publication date: May 23, 2019
    Inventors: Muhammad Ali Kazmi, Joakim Axmon, Christian Bergljung, Farshid Ghasemzadeh, Walter Gerhard Alois Müller
  • Publication number: 20190141639
    Abstract: According to some embodiments, a method for use in a user equipment (UE) operable to transmit a sounding reference signal (SRS) on a plurality of carriers comprises: obtaining an indication to perform SRS carrier-based switching for a carrier; adapting a parameter for uplink 5 transmit power control in response to the obtained indication; and transmitting an uplink signal using the adapted parameter while meeting at least one predetermined uplink power control requirement. According to some embodiments, a method for use in a network node operable to receive a SRS on a plurality of carriers comprises: sending, to a UE, an indication to perform SRS carrier-based switching for a carrier; and receiving, from the UE, an uplink signal based 0 on the parameter for uplink transmit power control adapted in response to the sent indication, wherein the uplink signal meets at least one uplink power control requirement.
    Type: Application
    Filed: May 12, 2017
    Publication date: May 9, 2019
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventors: Imadur Rahman, Iana Siomina, Muhammad Ali Kazmi, Christian Bergljung
  • Patent number: 10271313
    Abstract: A method for selecting carrier aggregation (CA) configurations includes determining whether a first wireless device is operating or expected to operate using a single carrier configuration on a cell associated with a first frequency band. If the first wireless device is not operating or expected to operate using a single carrier configuration on a cell associated with a first frequency band, a first CA configuration is selected for a second wireless device. If the first wireless device is operating or expected to operate using a single carrier configuration on a cell associated with a first frequency band, a second CA configuration that is more restrictive than the first CA configuration is selected for the second wireless device. An identifier of the selected one of the first CA configuration or the second configuration is transmitted to the second wireless device.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: April 23, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Muhammad Kazmi, Christian Bergljung, Farshid Ghasemzadeh, Imadur Rahman, Erika Tejedor
  • Patent number: 10219172
    Abstract: The present invention relates to a method and apparatus for testing mobile terminals in an OFDMA system, in which all or part of available downlink radio resources in a cell are transmitted. A processing unit in a test apparatus splits a set of contiguous resource blocks into separate contiguous portions. A first contiguous portion of the set of resource blocks is allocated to users of a first type, and a second contiguous portion of the set of resource blocks is allocated to users of a second type. A transmitter in the test apparatus transmits test signals to the users of the first type and the second type using the at least one contiguous set of resource blocks.
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: February 26, 2019
    Assignee: Telefonaktieboloaget LM Ericsson (publ)
    Inventors: Muhammad Kazmi, Joakim Axmon, Christian Bergljung, Farshid Ghasemzadeh, Walter Gerhard Alois Müller
  • Patent number: 10178704
    Abstract: A method is disclosed for enabling device-to-device, D2D, communication when a communicating device is out of public land mobile network, PLMN, coverage for a first radio access technology, RAT. The method comprises scanning a carrier associated with a carrier predetermined for D2D communication for any signals, and if the scanning determines that D2D communication is present on the carrier, initiating out-of-coverage D2D communication, or if the scanning cannot determine that D2D communication is present on the carrier, determining a signal strength of other signals on the carrier and if the signal strength is below a threshold initiating out-of-coverage D2D communication.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: January 8, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (publ)
    Inventors: Bengt Lindoff, Christian Bergljung, Peter Hedman, Hakan Palm
  • Patent number: 10123281
    Abstract: According to some embodiments, a first network node manages a transmit power of a first wireless device capable of device-to-device, D2D, communication. The first network node receives at least one measurement report from at least one of the first wireless device and a second wireless device in D2D communication with the first wireless device. The measurement report indicates a received signal measurement or path loss with respect to the other of the first wireless device and the second wireless device and/or a received signal measurement or path loss with respect to a victim node. The first network node sends the first wireless device instructions to make an adjustment of the transmit power that the first wireless device uses in the D2D communication. The adjustment is at least partially based on the received measurement report.
    Type: Grant
    Filed: May 9, 2017
    Date of Patent: November 6, 2018
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Gary Boudreau, Christian Bergljung, Muhammad Kazmi, Iana Siomina, Stefano Sorrentino
  • Patent number: 10045392
    Abstract: Flexible carrier aggregation is provided for a radio communications system. A capability is determined to communicate over a radio interface using multiple radio frequency component carriers. Each of the multiple component carriers is configurable with one or more control channels in a first mode of operation and with no control channels in a second mode of operation. Configuration information for one of the multiple radio frequency component carriers is signaled to indicate at least one of the component carriers is configured to operate in a selected one of the first mode of operation and the second mode of operation so that a network radio node and a user equipment radio node can communicate using the selected mode of operation.
    Type: Grant
    Filed: January 30, 2017
    Date of Patent: August 7, 2018
    Assignee: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventors: Magnus Larsson, Muhammad Kazmi, Christian Bergljung
  • Publication number: 20180219652
    Abstract: An inventive UE carrier aggregation (CA) capability reporting signalling model allows UEs (30) aggregating large numbers of component carriers to transmit CA-relevant capabilities to the network more efficiently than the current (legacy) signalling model. Rather than reporting CA/MIMO/CSI/NAICS capabilities separately for each supported band combination, including fallback configurations, embodiments of the present invention either report UE Radio Frequency (RF) and Baseband (BB) related capabilities separately, or report them disassociated from CA band configurations. This approach avoids the need to signal the full UE (30) set of capabilities for each of (possibly many) supported band combinations. Furthermore, fallback capabilities are signalled implicitly, eliminating the need to transmit this data.
    Type: Application
    Filed: July 19, 2016
    Publication date: August 2, 2018
    Inventors: Maomao Chen, Christian Bergljung, Tao Cui, Shaohua Li, Ingrid Nordstrand, Håkan Palm, Riikka Susitaival, Henning Wiemann
  • Publication number: 20180175995
    Abstract: Systems and methods for flexible spectrum, or bandwidth, support in a cellular communications network are disclosed. In one embodiment, a base station for a cellular communications network is configured to transmit a non-standardized bandwidth carrier and information that identifies a standardized bandwidth and additional information that, together with the information that identifies the standardized bandwidth, defines a non-standardized bandwidth of the non-standardized bandwidth carrier. In one embodiment, the additional information defines a bandwidth adjustment for the standardized bandwidth that defines the non-standardized bandwidth. In one embodiment, the bandwidth adjustment is a symmetric bandwidth restriction. In another embodiment, the bandwidth adjustment is an asymmetric bandwidth restriction. In yet another embodiment, the bandwidth adjustment is a symmetric bandwidth expansion. In yet another embodiment, the bandwidth adjustment is an asymmetric bandwidth expansion.
    Type: Application
    Filed: February 19, 2018
    Publication date: June 21, 2018
    Inventors: Havish Koorapaty, Christian Bergljung, Jung-Fu Cheng, Daniel Larsson
  • Patent number: 9923704
    Abstract: Systems and methods for flexible spectrum, or bandwidth, support in a cellular communications network are disclosed. In one embodiment, a base station for a cellular communications network is configured to transmit a non-standardized bandwidth carrier and information that identifies a standardized bandwidth and additional information that, together with the information that identifies the standardized bandwidth, defines a non-standardized bandwidth of the non-standardized bandwidth carrier. In one embodiment, the additional information defines a bandwidth adjustment for the standardized bandwidth that defines the non-standardized bandwidth. In one embodiment, the bandwidth adjustment is a symmetric bandwidth restriction. In another embodiment, the bandwidth adjustment is an asymmetric bandwidth restriction. In yet another embodiment, the bandwidth adjustment is a symmetric bandwidth expansion. In yet another embodiment, the bandwidth adjustment is an asymmetric bandwidth expansion.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: March 20, 2018
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Havish Koorapaty, Christian Bergljung, Jung-Fu Cheng, Daniel Larsson
  • Patent number: 9894678
    Abstract: Methods, wireless device (110) and radio network node (120) for scheduling transmissions are disclosed. The wireless device (110) sends, to the radio network node (120), information relating to emissions, from the wireless device (110), when the wireless device (110) operates according an operating configuration. The radio network node (120) schedules the transmissions based on the information. Then, the wireless device (110) is scheduled, by the radio network node (120), based on the information. Corresponding computer programs and carriers also are disclosed.
    Type: Grant
    Filed: August 8, 2014
    Date of Patent: February 13, 2018
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Erika Tejedor, Christian Bergljung, Olav Queseth
  • Patent number: 9877287
    Abstract: A method and network node for controlling power of uplink transmissions from a user node when switching between a first operating mode and a second operating mode. The network node signals to the user node a first value of a maximum allowed transmit power to be applied when operating in the first operating mode and a second value of the maximum allowed transmit power to be applied when operating in the second operating mode. The user node then uses a transmit power not exceeding the first value when transmitting radio signals in the first operating mode, and uses a transmit power not exceeding the second value when transmitting radio signals in the second operating mode. The user node itself thereby regulates the transmit power depending on opera mode without requiring further signalling from the network node.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: January 23, 2018
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Anders Wallén, Christian Bergljung
  • Publication number: 20170245221
    Abstract: According to some embodiments, a first network node manages a transmit power of a first wireless device capable of device-to-device, D2D, communication. The first network node receives at least one measurement report from at least one of the first wireless device and a second wireless device in D2D communication with the first wireless device. The measurement report indicates a received signal measurement or path loss with respect to the other of the first wireless device and the second wireless device and/or a received signal measurement or path loss with respect to a victim node. The first network node sends the first wireless device instructions to make an adjustment of the transmit power that the first wireless device uses in the D2D communication. The adjustment is at least partially based on the received measurement report.
    Type: Application
    Filed: May 9, 2017
    Publication date: August 24, 2017
    Inventors: Gary Boudreau, Christian Bergljung, Muhammad Kazmi, Iana Siomina, Stefano Sorrentino
  • Patent number: 9729304
    Abstract: The teachings present a method performed in a network node for configuring a device for radio communication in uplink and downlink between the network node and the device. The method comprises: configuring the device with a primary cell on a first radio channel at a first carrier frequency f1 with a first frequency bandwidth B1 for time division duplexed communication in uplink and downlink; configuring the device with a secondary cell on a second radio channel at a second carrier frequency f3 with a second frequency bandwidth B3, wherein the secondary cell is adjacent to the primary cell and configured for downlink communication only; and configuring the device to support and to monitor the second radio channel, the configuration comprising a priority list according to which the device is to perform the monitoring. The teachings also disclose corresponding network node, methods in a device, and corresponding devices.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: August 8, 2017
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (publ)
    Inventors: Bengt Lindoff, Christian Bergljung
  • Patent number: 9722761
    Abstract: Systems and methods relating to configuring a Secondary Component Carrier (SCC) for a wireless device in a cellular communications network are disclosed. In some embodiments, the method comprises obtaining capabilities of the wireless device, where the capabilities indicate a frequency band combination supported by the wireless device. The frequency band combination supported by the wireless device includes a first frequency band supported by a base station and the wireless device used for a Primary Cell (PCell) of the wireless device and a second frequency band supported by the wireless device but not supported by the base station. The method further comprises identifying an overlap between the second frequency band supported by the wireless device but not supported by the base station and a third frequency band supported by the base station but not supported by the wireless device and configuring the SCC for the wireless device in the overlap.
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: August 1, 2017
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Christian Bergljung, Tao Cui, Yoshio Honda, Klas Sjerling, Erika Tejedor, Toshihito Kanai
  • Publication number: 20170195971
    Abstract: A method and network node for controlling power of uplink transmissions from a user node when switching between a first operating mode and a second operating mode. The network node signals to the user node a first value of a maximum allowed transmit power to be applied when operating in the first operating mode and a second value of the maximum allowed transmit power to be applied when operating in the second operating mode. The user node then uses a transmit power not exceeding the first value when transmitting radio signals in the first operating mode, and uses a transmit power not exceeding the second value when transmitting radio signals in the second operating mode. The user node itself thereby regulates the transmit power depending on opera mode without requiring further signalling from the network node.
    Type: Application
    Filed: March 21, 2017
    Publication date: July 6, 2017
    Inventors: Anders Wallén, Christian Bergljung
  • Patent number: 9699690
    Abstract: Example embodiments presented herein are directed towards a base station (401), and corresponding method therein, for obtaining a carrier aggregation compatibility report comprising a subset of a total number of frequency band and/or frequency band combinations supported by a wireless device. Example embodiments presented herein are also directed towards a wireless device (501), and corresponding method therein, for providing a carrier aggregation compatibility report comprising a subset of the total number of frequency bands and/or frequency band combinations supported by the wireless device.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: July 4, 2017
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Håkan Palm, Christian Bergljung, Lisa Boström, Tao Cui, Elena Myhre, Ingrid Nordstrand, Erika Tejedor
  • Patent number: 9661585
    Abstract: According to some embodiments, a first network node manages a transmit power of a first wireless device capable of device-to-device, D2D, communication. The first network node receives at least one measurement report from at least one of the first wireless device and a second wireless device in D2D communication with the first wireless device. The measurement report indicates a received signal measurement or path loss with respect to the other of the first wireless device and the second wireless device and/or a received signal measurement or path loss with respect to a victim node. The first network node sends the first wireless device instructions to make an adjustment of the transmit power that the first wireless device uses in the D2D communication. The adjustment is at least partially based on the received measurement report.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: May 23, 2017
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Gary Boudreau, Christian Bergljung, Muhammad Kazmi, Iana Siomina, Stefano Sorrentino