Patents by Inventor Ali Behravan

Ali Behravan 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: 20200367182
    Abstract: The present disclosure provides techniques for reducing latency of periodic URLLC transmission and other critical data transmission with low latency requirements. To support periodic URLLC traffic, SPS with repetition is used. Before synchronization is achieved, the base station (300, 500) sends to the UE (400, 600) an SPS configuration for a periodic uplink data transmissions. When the starting time of the data transmission is not known, the base station (300, 600) over-provisions SPS resources for the periodic data transmission. Based on the timing of the data transmissions, the base stations (300, 600) adjusts the timing of the SPS configuration.
    Type: Application
    Filed: November 6, 2018
    Publication date: November 19, 2020
    Inventors: Zhenhua Zou, Ali Behravan, Joachim Sachs
  • Publication number: 20200359391
    Abstract: There is disclosed a method of operating a user equipment in a radio access network, the user equipment being configured with a feedback configuration of transmission of feedback signaling by the user equipment. The feedback signaling pertains to subject transmission. The feedback configuration indicates transmission of feedback signaling on a first carrier with a first numerology and according to a configured transmission timing. The method includes transmitting the feedback signaling at an updated transmission timing which is later in time than the configured transmission timing if the configured transmission timing is within a signaling time interval of transmission, by the user equipment, of second signaling on the first carrier. The disclosure also pertains to related methods and devices.
    Type: Application
    Filed: November 16, 2017
    Publication date: November 12, 2020
    Inventors: Robert BALDEMAIR, Ali BEHRAVAN, Daniel CHEN LARSSON, Erik DAHLMAN, Sorour FALAHATI, Stefan PARKVALL
  • Publication number: 20200351775
    Abstract: Techniques are provided to ensure that a terminal device is able to perform measurements efficiently when an on/off scheme is used by network nodes, particularly in a heterogeneous network environment. An example method, implemented in a network node, comprises obtaining a discovery signal window pattern, the discovery signal window pattern defining one or more discovery signal windows during which each of a plurality of cells is to transmit a corresponding discovery signal, and sending an indication of the discovery signal window pattern to a terminal device.
    Type: Application
    Filed: July 16, 2020
    Publication date: November 5, 2020
    Inventors: Daniel Larsson, Ali Behravan, Muhammad Kazmi
  • Patent number: 10813120
    Abstract: A base station in a communications network broadcasts a cell-specific instruction to a plurality of mobile terminals in a cell served by the base station. The cell-specific instruction indicates that an uplink symbol in each of multiple subsequent subframes has been semi-statically configured for sounding reference signal (SRS) transmission. The base station determines that a first mobile terminal of the plurality of mobile terminals is to use the uplink symbol in a given one of the multiple subsequent subframes for aperiodic SRS transmission, and in response, signals a terminal-specific instruction to the first mobile terminal. The terminal-specific instruction is distinct from the cell-specific instruction and indicates that the first mobile terminal is to use the uplink symbol in the given subframe for aperiodic SRS transmission and not for data transmission.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: October 20, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Ali Behravan, David Astely, George Jöngren
  • Publication number: 20200296735
    Abstract: A “smart” hybrid automatic repeat request (HARQ) based method. In a downlink embodiment of the smart HARQ based method, a network node, using a set of one or more radio resources, transmits a first superimposed signal containing a message for a first UE and a second message for a second UE. If the network node receives a NACK from the first UE indicating that it could not decode either the first message or the second message and also receives a NACK from the second UE indicating that it could not decode the second message, the network node initially only retransmits one of the messages.
    Type: Application
    Filed: May 14, 2018
    Publication date: September 17, 2020
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Behrooz MAKKI, Ali Behravan
  • Publication number: 20200296702
    Abstract: According to some embodiments, a method in a network node for configuring monitoring occasions for use in a network node of a wireless communication network comprises determining a physical downlink control channel (PDCCH) search space monitoring configuration for a wireless device. The PDCCH search space monitoring configuration comprises a monitoring periodicity and a number of blind decodes for each search space of a plurality of search spaces over a plurality of slots. The method further comprises sending the monitoring configuration to the wireless device. A method in a wireless device comprises receiving the monitoring configuration and monitoring each search space according to the monitoring configuration.
    Type: Application
    Filed: May 28, 2020
    Publication date: September 17, 2020
    Inventors: Ali Behravan, Sorour Falahati, Havish Koorapaty, Stefan Parkvall
  • Publication number: 20200281012
    Abstract: Methods and apparatus are provided for fast transmission by a UE of scheduling requests for low latency data transmission. When transmit data for transmission on an uplink shared channel arrives, the UE determines whether the scheduling request to be sent by the user equipment to request uplink resources for transmission of the data will overlap a scheduled data transmission. If it is determined that the scheduling request will overlap the scheduled data transmission, the UE may preempt the scheduled data transmission to transmit the scheduling request. Preemption may be based on one or more predetermined criteria including the priority of the new transmit data, the periodicity of the scheduling request interval, and the remaining duration of the ongoing data transmission.
    Type: Application
    Filed: September 11, 2018
    Publication date: September 3, 2020
    Inventors: Ali Behravan, Robert Baldemair, Daniel Chen Larsson, Jung-Fu Cheng, Ravikiran Nory, Stefan Parkvall, Zhenhua Zou
  • Publication number: 20200274671
    Abstract: A method, network node and wireless device are provided in which a method in the network node for switching between different numerologies supported by the network node includes determining at least one parameter that can be used by the network node for switching between a first signal operating with a first numerology and a second signal operating with a second numerology; switching between the first signal and the second signal based on the at least one parameter; and after the switching, operating at least one of the first signal and the second signal between the network node and a second node.
    Type: Application
    Filed: December 21, 2017
    Publication date: August 27, 2020
    Inventors: Ali BEHRAVAN, Muhammad KAZMI, Iana SIOMINA, Patrizia TESTA
  • Patent number: 10757649
    Abstract: Techniques are provided to ensure that a terminal device is able to perform measurements efficiently when an on/off scheme is used by network nodes, particularly in a heterogeneous network environment. An example method, implemented in a network node, comprises obtaining a discovery signal window pattern, the discovery signal window pattern defining one or more discovery signal windows during which each of a plurality of cells is to transmit a corresponding discovery signal, and sending an indication of the discovery signal window pattern to a terminal device.
    Type: Grant
    Filed: January 2, 2019
    Date of Patent: August 25, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Daniel Larsson, Ali Behravan, Muhammad Kazmi
  • Publication number: 20200252170
    Abstract: A receiving node in a wireless communication network is operable to determining a process identifier for a repeated transmission by allocating, to a transmitting node, a plurality of resources for use with repeated transmissions, receiving a transmission from the transmitting node where the transmission uses at least one resource from the plurality of resources assigned to the transmitting node for use with repeated transmissions, and determining the process identifier for the transmission based on the at least one resource from the plurality of resources for use with repeated transmissions used by the transmission. Related methods and systems are also disclosed.
    Type: Application
    Filed: August 8, 2018
    Publication date: August 6, 2020
    Inventors: Efthymios Stathakis, Mats Folke, Zhenhua Zou, Gustav Wikström, Ali Behravan, Daniel Larsson
  • Patent number: 10735240
    Abstract: Preempting a slot with a mini-slot for use in a wireless transmitter of a wireless communication network is presented. The method includes preempting a slot transmission to a wireless receiver with a mini-slot transmission to the wireless receiver, wherein the slot transmission comprises a plurality of time-frequency regions (TFRs), each TFR comprising a plurality of sub-regions. The method further includes transmitting a preemption indication to the wireless receiver, where the preemption indication includes a TFR position in time of one or more preempted TFRs in the slot transmission, a TFR position in frequency of the one or more preempted TFRs in the slot transmission and an identifier of one or more of the plurality a sub-regions of the one more preempted TFRs.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: August 4, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Alexey Shapin, Ali Behravan, Gustav Wikstrom
  • Patent number: 10736055
    Abstract: Embodiments herein relate to a method for controlling transmit power of a mobile terminal. The method is performed by a mobile terminal in a dual connectivity mode wherein the mobile terminal is configured to support two or more contemporaneous links, including a first link and a second link, with two or more wireless network access points. The mobile terminal independently calculates a respective unscaled uplink transmission power level for each link, based on a corresponding link-specific value.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: August 4, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Imadur Rahman, Ali Behravan
  • Publication number: 20200244407
    Abstract: Embodiments disclosed herein provide an adaptive multiple access scheme. In some embodiments, a UE transmits a message according to a first multiple access scheme and retransmits the message according to a second multiple access scheme.
    Type: Application
    Filed: February 14, 2018
    Publication date: July 30, 2020
    Applicant: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Behrooz MAKKI, Ali BEHRAVAN, Mona HASHEMI
  • Patent number: 10700827
    Abstract: A wireless communication device (12, 700) receives from a radio node (10, 500, 600) one or more parameter values indicating power allocated to one or more radio signals of a wideband transmission (14). The wideband transmission (14) operates in a wideband operating bandwidth (16). The wireless communication device (12, 700) also receives from the radio node (10, 500, 600) information about at least one of: (i) a first portion (24) of radio resources, within the wideband operating bandwidth (16), on which power indicated by the one or more parameter values is allocated; and (ii) a second portion (26) of radio resources, within the wideband operating bandwidth (16), on which power indicated by the one or more parameter values is not allocated and on which a narrowband transmission (20) is transmitted. The wireless communication device (12, 700) also performs one or more radio operations based on the one or more parameter values and the received information.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: June 30, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Sairamesh Nammi, Ali Behravan, Dominique Everaere, Muhammad Kazmi, Liang Zhang
  • Patent number: 10687324
    Abstract: According to some embodiments, a method in a network node for configuring monitoring occasions for use in a network node of a wireless communication network comprises determining a physical downlink control channel (PDCCH) search space monitoring configuration for a wireless device. The PDCCH search space monitoring configuration comprises a monitoring periodicity and a number of blind decodes for each search space of a plurality of search spaces over a plurality of slots. The method further comprises sending the monitoring configuration to the wireless device. A method in a wireless device comprises receiving the monitoring configuration and monitoring each search space according to the monitoring configuration.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: June 16, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Ali Behravan, Sorour Falahati, Havish Koorapaty, Stefan Parkvall
  • Publication number: 20200186406
    Abstract: Preempting a slot with a mini-slot for use in a wireless transmitter of a wireless communication network is presented. The method includes preempting a slot transmission to a wireless receiver with a mini-slot transmission to the wireless receiver, wherein the slot transmission comprises a plurality of time-frequency regions (TFRs), each TFR comprising a plurality of sub-regions. The method further includes transmitting a preemption indication to the wireless receiver, where the preemption indication includes: a TFR position in time of one or more preempted TFRs in the slot transmission, a TFR position in frequency of the one or more preempted TFRs in the slot transmission and an identifier of one or more of the plurality of sub-regions of the one more preempted TFRs.
    Type: Application
    Filed: February 19, 2020
    Publication date: June 11, 2020
    Inventors: Alexey Shapin, Ali Behravan, Gustav Wikström
  • Publication number: 20200186307
    Abstract: A radio node is configured to transmit, within a guard band of a first radio access technology (RAT), a radio signal according to a second RAT. The radio node determines, based on a channel bandwidth of the first RAT, one or more transmit parameters for transmission of the radio signal according to the second RAT within the guard band of the first RAT, for transmission of the radio signal to comply with emission limits for the first RAT. The one or more transmit parameters include a frequency position of the radio signal within the guard band for the first RAT. The radio node also configures the radio node with the one or more transmit parameters for transmitting the radio signal according to the second RAT within the guard band of the first RAT.
    Type: Application
    Filed: February 14, 2020
    Publication date: June 11, 2020
    Inventors: Ali Behravan, Muhammad Kazmi
  • Patent number: 10645661
    Abstract: A method in a first network node is disclosed. The method comprises determining a time synchronization level for at least a pair of network nodes, the time synchronization level comprising information about a difference in start time of the radio frames in a downlink or radio subframes in a downlink between the at least a pair of network nodes. The method further comprises adapting one or more discovery reference signal parameters based at least in part on the determined time synchronization level for the at least a pair of network nodes, and transmitting a discovery reference signal using the adapted one or more discovery reference signal parameters.
    Type: Grant
    Filed: August 13, 2015
    Date of Patent: May 5, 2020
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Ali Behravan, Muhammad Kazmi
  • Patent number: 10587376
    Abstract: A radio node (705, 711) is configured to transmit, within a guard band of a first radio access technology (RAT), a radio signal (709) according to a second RAT. The radio node (705, 711) determines, based on a channel bandwidth (731) of the first RAT, one or more transmit parameters for transmission of the radio signal (709) according to the second RAT within the guard band of the first RAT, for transmission of the radio signal (709) to comply with emission limits for the first RAT. The one or more transmit parameters include a frequency position of the radio signal (709) within the guard band for the first RAT. The radio node (705, 711) also configures the radio node (705, 711) with the one or more transmit parameters for transmitting the radio signal (709) according to the second RAT within the guard band of the first RAT.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: March 10, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Ali Behravan, Muhammad Kazmi
  • Publication number: 20200076663
    Abstract: According to some embodiments, a user equipment (UE) and a method in the UE are disclosed. The UE is served by a cell managed or served by a network node. The UE comprises processing circuitry, a transceiver coupled to the processing circuitry, and memory containing instructions executable by the processing circuitry. The UE is operative to determine that a center frequency of a radio frequency (RF) reception bandwidth of the UE is different than a center frequency of a RF transmission bandwidth of the cell serving the UE. The UE is further operative to receive a signal from the cell serving the UE over a center subcarrier within the RF reception bandwidth of the UE, and puncture a portion of the signal received over the center subcarrier within the RF reception bandwidth of the UE.
    Type: Application
    Filed: November 8, 2019
    Publication date: March 5, 2020
    Inventors: Muhammad Kazmi, Ali Behravan, Johan Mikael Bergman, Gary Boudreau, Anders Wallén