Patents by Inventor Mirsad Cirkic

Mirsad Cirkic 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: 10735140
    Abstract: There is provided mechanisms for encoding an information sequence into an encoded sequence. A method is performed by an information encoder. The method comprises obtaining the information sequence. The method comprises inserting at least one checkpoint sequence in the information sequence. The method comprises encoding the information sequence comprising the at least one checkpoint sequence into the encoded sequence using a polar code. There is also provided a method for decoding such an encoded sequence.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: August 4, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Mirsad Cirkic, Jonas Fröberg Olsson, Martin Hessler
  • Patent number: 10716010
    Abstract: The present invention relates to an improved predicting of target carrier radio conditions in a communication network. The improved prediction is achieved by acquiring, by a first network node, measurement data based on radio signals at a source carrier and a first target carrier. Subsequently, a target carrier radio condition prediction function is identified by the first network node or a second network node.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: July 14, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Mirsad Cirkic, Samuel Axelsson, Joel Berglund, Fredrik Gunnarsson, Pradeepa Ramachandra, Henrik Rydén
  • Patent number: 10659128
    Abstract: Embodiments herein relate to a method performed by wireless device for applying a Channel State Information, CSI, filtering in a wireless communication network. The wireless device determines a recommended CSI filtering based on measurements of one or more received reference signals from a radio network node. The wireless device transmits, to the radio network node, a first indication of the determined recommended CSI filtering. The wireless device receives, from the radio network node or another radio network node, a first configuration of CSI filtering; and uses the received first configuration for applying CSI filtering.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: May 19, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Mirsad Cirkic, Jonas Fröberg Olsson, Martin Hessler
  • Patent number: 10659133
    Abstract: A method for operating a transmitting node of a wireless communication network. The transmitting node includes or is connected to an antenna array having multiple antenna elements. A signal indication indicating a first and/or reference signaling is obtained. The first reference signaling includes transmission on a first plurality of disjunct frequency bands, and the second reference signaling includes transmission on a second plurality of disjunct frequency bands. The first reference signaling and the second reference signaling are transmitted based on a signal map of the first and the second reference signaling to antenna elements of the antenna array.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: May 19, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Mirsad Cirkic, Joel Berglund, Erik Eriksson
  • Patent number: 10651873
    Abstract: A method is performed by an information decoder. The method comprises obtaining (S102) an encoded sequence having been encoded using a polar code. The method comprises successively decoding (S104) the encoded sequence into the successive bits of the decoded sequence. Successively decoding the encoded sequence comprises performing a threshold check (S106) for evaluating a bit uncertainty criterion. Successively decoding the encoded sequence comprises branching (S108) the decoded sequence into two candidate decoded sequences whenever the threshold check fails.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: May 12, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventor: Mirsad Cirkic
  • Patent number: 10644775
    Abstract: A signal quality associated with radio transmissions from a first device (100) to a second device (10) is determined. Further, an uncertainty of the determined signal quality is determined. Depending on the determined signal quality and uncertainty, a beamforming configuration, applied by the first device (100) for performing the radio transmissions to the second device (10), is adapted.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: May 5, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Sara Modarres Razavi, Mirsad Cirkic, Martin Hessler, Reza Moosavi, Henrik Rydén
  • Patent number: 10623072
    Abstract: There is disclosed a method for operating a network node in a wireless communication network. The method comprises obtaining a first precoder and/or first beam pattern indication, and a second precoder and/or second beam pattern indication, the first precoder and/or first beam pattern indication being associated to beamformed transmission of first signaling utilizing a first antenna subarray, and the second precoder and/or second beam pattern indication being associated to beamformed transmission of second signaling utilizing a second antenna subarray. A first phase center is associated to the first signaling and a second phase center is associated to the second signaling, the first phase center and the second phase center having a phase center difference. The method further comprises transmitting the first signaling on a first expanded antenna subarray utilising a first expanded precoder, and transmitting the second signaling on a second expanded antenna subarray utilising a second expanded precoder.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: April 14, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Mirsad Cirkic, Joel Berglund, Erik Eriksson, Sven Petersson
  • Patent number: 10560163
    Abstract: There is provided a method and corresponding apparatus for determining a beamforming configuration for a multi-antenna system according to an embodiment. In general, the multi-antenna system has at least two antennas and a port-to-antenna mapping between antenna ports and antennas. The method comprises obtaining (S1) first feedback information originating from a wireless device relating to a multi-antenna transmission based on a first beamforming configuration including a first port-to-antenna mapping, and obtaining (S2) second feedback information originating from the wireless device relating to a multi-antenna transmission based on a second, different beamforming configuration including a second, different port to-antenna mapping. The method also comprises determining (S3), based on the first feedback information and the second feedback information, a third beamforming configuration for the multi-antenna system including a third port-to-antenna mapping to enable beamforming according to a third beam form.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: February 11, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Joel Berglund, Mirsad Cirkic, Erik Eriksson
  • Publication number: 20200029234
    Abstract: A network node (200), a wireless device (202) and methods therein, for indicating and handling assignment of measurement resources in a predefined region of a resource block transmitted by the network node (200). The network node (200) identifies (2:1) a wireless device (202) that is required to perform measurements on signals transmitted by the network node (200) and/or measurements of interference. The network node (200) then assigns (2:2) to the wireless device (202) usage of the measurement resources in the predefined region, and signals (2:3) an indication of the assigned usage of the measurement resources to the wireless device (202). The wireless device (202) is then able to determine and use (2:4) the measurement resources based on the received indication. Thereby, the usage of the measurement resources can be assigned in a dynamic and flexible manner, e.g. depending on the current need for measurement resources.
    Type: Application
    Filed: October 14, 2016
    Publication date: January 23, 2020
    Inventors: Mirsad Cirkic, Jonas Fröberg Olsson, Martin Hessler
  • Patent number: 10517122
    Abstract: A radio network node (110) manages (A010) establishment of a current radio session between a user equipment (120) and the radio network node (110), wherein the current radio session is associated with a current set of characteristics relating to the radio network node (110) and/or the user equipment (120). During establishment of the current radio session, a core network node (130) retrieves (A080), based on the current set of characteristics, an indication about the MCS offset from a memory (141, 142) accessible by the core network node (130). Then, the core network node (130) sends (A090), to the radio network node (110), the indication about the MCS offset. The indication is derived from a previous radio session, wherein the previous radio session is associated with a previous set of the characteristics, wherein the previous set of the characteristics matches the current set of the characteristics.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: December 24, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Fredrik Gunnarsson, Joel Berglund, Mirsad Cirkic, Henrik Rydén
  • Publication number: 20190364591
    Abstract: A technique for reporting channel state information, CSI, from a wireless device to a radio node is described. The wireless device is wirelessly connected or connectable to the radio node. Different CSI configurations associated with different CSI states (502, 504) are stored at the wireless device. The CSI configurations comprise at least one transition criterion for a state transition (506; 508) between the CSI states (502, 504). As to a method aspect of the technique, the wireless device determines the state transition (506; 508) to a CSI state (502; 504) among the CSI states if the corresponding transition criterion is fulfilled and reports the CSI according to the CSI configuration that is associated with the CSI state (502; 504) resulting from the determination.
    Type: Application
    Filed: December 20, 2017
    Publication date: November 28, 2019
    Inventors: Joel Berglund, Mirsad Cirkic, Jonas Fröberg Olsson
  • Publication number: 20190357057
    Abstract: The present invention relates to an improved predicting of target carrier radio conditions in a communication network. The improved prediction is achieved by acquiring, by a first network node, measurement data based on radio signals at a source carrier and a first target carrier. Subsequently, a target carrier radio condition prediction function is identified by the first network node or a second network node.
    Type: Application
    Filed: March 21, 2016
    Publication date: November 21, 2019
    Inventors: Mirsad CIRKIC, Samuel AXELSSON, Joel BERGLUND, Fredrik GUNNARSSON, Pradeepa RAMACHANDRA, Henrik RYDÉN
  • Patent number: 10425874
    Abstract: Radio link failures, “RLF”, of a wireless device served by a wireless communication network are managed. A first, default, RLF procedure is associated with at least a first type of wireless devices supported by the wireless communication network. The wireless device obtains, e.g. received from a network node information indicative of a second RLF procedure based on that the wireless device is of a second type having an improved radio coverage capability compared to the first type. The wireless device applies, based on the obtained information, said second RLF procedure.
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: September 24, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Erik Eriksson, Pradeepa Ramachandra, Reza Moosavi, Joel Berglund, Mirsad Cirkic
  • Patent number: 10419098
    Abstract: Culling a set of precoders down to a smaller set using a comparatively simple first-pass evaluation allows a wireless device or other entity to reduce an overall computational burden associated with identifying a currently preferred precoder. An example approach involves selecting a reduced set of precoders from a full set of precoders, based on performing preliminary evaluations of precoders in the full set, and selecting a preferred precoder or precoders from the reduced set, based on performing further evaluations of precoders in the second set. On a per precoder basis, the further evaluations are more complex than the preliminary evaluations. One may view the approach as using less complex first-pass evaluations to reduce the precoder search space, and then using more complex second-pass evaluations to identify a currently preferred precoder or precoders within the reduced search space.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: September 17, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Jonas Fröberg Olsson, Mirsad Cirkic, Martin Hessler, Kristina Hessler
  • Publication number: 20190280748
    Abstract: There is disclosed a method for operating a network node in a wireless communication network. The method comprises obtaining a first precoder and/or first beam pattern indication, and a second precoder and/or second beam pattern indication, the first precoder and/or first beam pattern indication being associated to beamformed transmission of first signaling utilizing a first antenna subarray, and the second precoder and/or second beam pattern indication being associated to beamformed transmission of second signaling utilizing a second antenna subarray. A first phase center is associated to the first signaling and a second phase center is associated to the second signaling, the first phase center and the second phase center having a phase center difference. The method further comprises transmitting the first signaling on a first expanded antenna subarray utilising a first expanded precoder, and transmitting the second signaling on a second expanded antenna subarray utilising a second expanded precoder.
    Type: Application
    Filed: May 20, 2016
    Publication date: September 12, 2019
    Inventors: Mirsad Cirkic, Joel Berglund, Erik Eriksson, Sven Petersson
  • Patent number: 10375694
    Abstract: A method performed by a network node for determining a beam to direct a signal to be transmitted from the network node to a user equipment in a wireless communications network. The network node obtains (302) information related to a sequence of beams associated with the user equipment. The network node further determines (304) the beam based on the information related to the sequence of beams.
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: August 6, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Joel Berglund, Mirsad Cirkic, Erik Eriksson, Reza Moosavi, Pradeepa Ramachandra
  • Publication number: 20190215047
    Abstract: A method for operating a transmitting node of a wireless communication network. The transmitting node includes or is connected to an antenna array having multiple antenna elements. A signal indication indicating a first and/or reference signaling is obtained. The first reference signaling includes transmission on a first plurality of disjunct frequency bands, and the second reference signaling includes transmission on a second plurality of disjunct frequency bands. The first reference signaling and the second reference signaling are transmitted based on a signal map of the first and the second reference signaling to antenna elements of the antenna array.
    Type: Application
    Filed: May 20, 2016
    Publication date: July 11, 2019
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Mirsad CIRKIC, Joel BERGLUND, Erik ERIKSSON
  • Publication number: 20190215746
    Abstract: A processing unit (104) and a method therein for initiating activation of a target cell. A communications device (106) is operating in a first cell (108a) of a wireless communications network (100). The processing unit is configured to obtain an estimate of a radio condition of the communications device in a target cell (108b) comprised in the wireless communications network. Further, the processing unit is configured to determine, based on the estimate of the radio condition, an energy saving obtained if offloading the communications device from the first cell to the target cell. Furthermore, the processing unit is configured to initiate activation of the target cell in dependence on the determined energy saving and on an activation decision.
    Type: Application
    Filed: August 22, 2016
    Publication date: July 11, 2019
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Mirsad CIRKIC, Joel BERGLUND, Stefan ENGSTROM, Henrik RYDÉN
  • Publication number: 20190207661
    Abstract: A method performed by a first radio node for determining one or more precoders for beamforming of reference signals is provided. The reference signals relate to Channel State Information, CSI, of a forward link channel from the first radio node to a second radio node. The first radio node receives (201) reverse link reference signals from the second radio node and estimates (202) a first quality value of the forward link channel based on the received reverse link reference signal. The first radio node then determines (203) one or more first precoders of respective one or more first ranks based on the reverse link reference signal and the estimated first quality value. When the one or more first precoders have been determined, the first radio node triggers (204) a first transmission of one or more first forward link reference signals to the second radio node. The one or more first forward link reference signals are beamformed according to the determined respective one or more first precoders.
    Type: Application
    Filed: August 22, 2016
    Publication date: July 4, 2019
    Inventors: Jonas Fröberg Olsson, Mirsad Cirkic, Sebastian Faxér, Martin Hessler
  • Publication number: 20190149267
    Abstract: There is provided mechanisms for encoding an information sequence into an encoded sequence. A method is performed by an information encoder. The method comprises obtaining the information sequence. The method comprises inserting at least one checkpoint sequence in the information sequence. The method comprises encoding the information sequence comprising the at least one checkpoint sequence into the encoded sequence using a polar code. There is also provided a method for decoding such an encoded sequence.
    Type: Application
    Filed: April 29, 2016
    Publication date: May 16, 2019
    Inventors: Mirsad Cirkic, Jonas Fröberg Olsson, Martin Hessler