Patents by Inventor Tahmineh Torabian Esfahani

Tahmineh Torabian Esfahani 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: 12219414
    Abstract: A user equipment (“UE”) can receive a request for UE mobility history information from a network node. The UE can generate a UE mobility history report. The UE mobility history report can include at least one of transitions between an inactive state and a connected state for each cell included in the UE mobility history report or a carrier frequency of each cell included in the UE mobility history report. The UE can transmit the UE mobility history report to the network node.
    Type: Grant
    Filed: October 2, 2020
    Date of Patent: February 4, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Malik Wahaj Arshad, Stefan Engström, Parisa Pakniat, Ali Parichehrehteroujeni, Pradeepa Ramachandra, Kristina Zetterberg, Tahmineh Torabian Esfahani
  • Publication number: 20240430943
    Abstract: A method performed by a user equipment (UE) includes performing a random access (RA) procedure towards a cell of a radio access network, logging a first indication that indicates whether the cell towards which the RA procedure was performed belongs to a master cell group, MEG, (MCG) or a secondary cell group, (SCG) serving the UE, and generating an RA report that includes the first indication. A method performed by a radio access network, (RAN) node, includes receiving an RA preamble from a UE as part of the RA procedure towards a cell served by the RAN node, and receiving the RA report associated with the RA procedure indicating whether the cell towards which the RA procedure was performed belongs to the MCG or the SCG serving the UE.
    Type: Application
    Filed: September 19, 2022
    Publication date: December 26, 2024
    Inventors: Ali PARICHEHREHTEROUJENI, Angelo CENTONZA, Pradeepa RAMACHANDRA, Marco BELLESCHI, Tahmineh TORABIAN ESFAHANI
  • Patent number: 12177693
    Abstract: A method is performed by a distributed unit of a radio access network node having a split architecture. The method includes determining a status or error of the distributed unit. The DU sends, to a control unit of the radio access network node, an indication indicating the status or error of the distributed unit. The message indicates the status or error of the distributed unit for at least one cell served by the distributed unit and/or at least one functionality performed by the distributed unit. The distributed unit receives instructions from the control unit of the radio access network node, and the instructions are at least partially based on the indicated status or error.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: December 24, 2024
    Assignee: Telefonaktiebolagget LM Ericsson (Publ)
    Inventors: Angelo Centonza, Lars Falk, Ali Nader, Tahmineh Torabian Esfahani, Daniel Henriksson
  • Publication number: 20240340968
    Abstract: Embodiments herein relate to, for example, a method performed by a UE for handling communication in a wireless communications network. The UE determines a first preamble from a group of preambles out of one or more groups of preambles, wherein the group of preambles is selected based on whether one or more conditions, associated with the group, are fulfilled or not. The UE transmit a PRACH transmission using the determined first preamble.
    Type: Application
    Filed: October 19, 2022
    Publication date: October 10, 2024
    Inventors: Jonas SEDIN, Zhipeng LIN, Luca FELTRIN, Mattias BERGSTRÖM, Tahmineh TORABIAN ESFAHANI
  • Publication number: 20240314883
    Abstract: A method performed by a first network node includes determining one or more Local node Identifiers. The method includes transmitting the one or more Local node Identifiers to a second network node neighboring the first network node, each of the one or more Local node Identifiers including: an Inactive-Radio Network Temporary Identifier, I-RNTI, profile valid for the first network node and associated with a full I-RNTI; and/or an I-RNTI profile valid for the first network node and associated with a short I-RNTI. The method includes transmitting a radio resource control, RRC, release message with suspend configuration to a user equipment, to transition the user equipment to RRC Inactive, the RRC release message including a Local node Identifier for the first network node and a UE context identifier.
    Type: Application
    Filed: January 12, 2022
    Publication date: September 19, 2024
    Inventors: Luca LUNARDI, Angelo CENTONZA, Markus DREVÖ, Tahmineh Torabian ESFAHANI
  • Publication number: 20240292478
    Abstract: Embodiments include methods for a user equipment (UE) configured for multi-radio access technology dual-connectivity (MR-DC) with a wireless network. Such methods include storing context information related to the UE's MR-DC. The context information includes a configuration associated with a secondary node for the UE's MR-DC. Such methods include receiving, from a master node for the UE's MR-DC, a first message that instructs the UE to release MR-DC and to suspend the UE's connection with the wireless network and, in response to the first message, releasing the MR-DC and suspending the UE's connection with the wireless network. Such methods include discarding at least part of the stored context information in response to one of the following: receiving the first message; a first indication included in or with the first message; or a second indication received from a target node for resuming the UE's connection with the wireless network.
    Type: Application
    Filed: June 22, 2022
    Publication date: August 29, 2024
    Inventors: Antonino ORSINO, Tahmineh TORABIAN ESFAHANI, Icaro Leonardo DA SILVA
  • Patent number: 11924759
    Abstract: Disclosed herein is a method of a communication device operating in a wireless communication network for managing power consumption of the device. The device is configured to operate according to first, second and third operational states for communication with a network node associated with the communication network.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: March 5, 2024
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Ali Nader, Tahmineh Torabian Esfahani
  • Publication number: 20240015503
    Abstract: A method performed by a source network node, for preventing agents from illegitimately identifying the source network node when resuming a wireless terminal in a target network node in a wireless communications network is provided. The source network node obtains a concealing key, which concealing key is shared with the target network node. The source network conceals a resume identifier with the obtained concealing key, which resume identifier identifies the source network node. When releasing the wireless terminal, the source network node sends the concealed resume identifier to the wireless terminal, which concealed resume identifier is to be sent by the wireless terminal to the target network node upon requesting resumption of the wireless terminal, wherein the resume identifier is only identifiable from the concealed resume identifier by using the shared concealing key, thereby preventing agents from illegitimately learning the source network node identity.
    Type: Application
    Filed: September 9, 2020
    Publication date: January 11, 2024
    Inventors: Tahmineh TORABIAN ESFAHANI, Icaro L.J. DA SILVA, Luca LUNARDI
  • Publication number: 20230107347
    Abstract: Disclosed herein is a method of a communication device operating in a wireless communication network for managing power consumption of the device. The device is configured to operate according to first, second and third operational states for communication with a network node associated with the communication network.
    Type: Application
    Filed: March 18, 2020
    Publication date: April 6, 2023
    Inventors: Ali Nader, Tahmineh Torabian Esfahani
  • Publication number: 20230107443
    Abstract: A method for operating a User Equipment, UE, in a wireless communication network. The method includes acquiring broadcast information comprising redirection information and performing a cell selection or cell reselection procedure based on the acquired broadcasted information. A corresponding UE and a computer program are also disclosed. There is also disclosed a method for operating a network node serving a User Equipment, UE, in a wireless communication network. The method includes broadcasting information having redirection information enabling the UEs to perform a cell selection or cell reselection procedure. A corresponding network node and computer program are also disclosed.
    Type: Application
    Filed: March 13, 2020
    Publication date: April 6, 2023
    Inventors: Icaro Leonardo DA SILVA, Tahmineh TORABIAN ESFAHANI
  • Publication number: 20230070154
    Abstract: A method performed by a UE for handling communication with a first RAN node associated with a first RAT, and a second RAN node associated with a second RAT, wherein the UE, the first RAN node and the second RAN node are operating in a wireless communication network. The UE is in inactive state in the first RAT when being registered through the first RAN node. The UE performs a registration through the second RAN node while retaining a stored inactive context related to the first RAN node, thereby having a dual registration to the first RAN node and the second RAN node. The UE further enters a state in the second RAT while remaining in the inactive state in the first RAT.
    Type: Application
    Filed: February 17, 2020
    Publication date: March 9, 2023
    Inventors: Tahmineh TORABIAN ESFAHANI, Luca LUNARDI, Sara MODARRES RAZAVI, Markus DREVÖ, Wei SHEN
  • Publication number: 20230056267
    Abstract: A method performed by a first network node for assisting a second network node in resuming of a User Equipment, UE, in inactive state into connected state in a Radio Access Network, RAN. The first network node obtains (401) a Local RAN Node Identifier associated with a Public Land Mobile Network, PLMN, RAN Node ID, identifying the first network node. The first network node sends (402) the Local RAN node Identifier and associated PLMN RAN Node ID to be obtainable by the second network node. The first network node suspends (403) the UE from connected state into inactive state and sends an identifier to the UE. The identifier comprises a UE Context ID and the associated Local RAN Node Identifier. The UE Context ID identifies the UE context associated with the UE. The UE Context ID, Local RAN Node Identifier and associated PLMN RAN Node ID will assist the second network node to obtain the UE Context for the resuming of the UE into connected state, wherein a connection is to be provided by the second network node.
    Type: Application
    Filed: February 19, 2020
    Publication date: February 23, 2023
    Inventors: Luca Lunardi, Icaro L.J. da Silva, Markus Drevö, Angelo Centonza, Tahmineh Torabian Esfahani
  • Publication number: 20220369194
    Abstract: A user equipment (“UE”) can receive a request for UE mobility history information from a network node. The UE can generate a UE mobility history report. The UE mobility history report can include at least one of transitions between an inactive state and a connected state for each cell included in the UE mobility history report or a carrier frequency of each cell included in the UE mobility history report. The UE can transmit the UE mobility history report to the network node.
    Type: Application
    Filed: October 2, 2020
    Publication date: November 17, 2022
    Inventors: Malik Wahaj Arshad, Stefan Engström, Parisa Pakniat, Ali Parichehrehteroujeni, Pradeepa Ramachandra, Kristina Zetterberg, Tahmineh Torabian Esfahani
  • Publication number: 20220174515
    Abstract: A method is performed by a distributed unit of a radio access network node having a split architecture. The method includes determining a status or error of the distributed unit. The DU sends, to a control unit of the radio access network node, an indication indicating the status or error of the distributed unit. The message indicates the status or error of the distributed unit for at least one cell served by the distributed unit and/or at least one functionality performed by the distributed unit. The distributed unit receives instructions from the control unit of the radio access network node, and the instructions are at least partially based on the indicated status or error.
    Type: Application
    Filed: April 17, 2020
    Publication date: June 2, 2022
    Inventors: Angelo Centonza, Lars Falk, Ali Nader, Tahmineh Torabian Esfahani, Daniel Henriksson
  • Publication number: 20190229678
    Abstract: A crystal oscillator circuit comprises a crystal; oscillator circuitry for generating a crystal oscillation signal at an oscillation frequency; and a kick-start circuit for injecting pulses into the crystal during a start-up period. The oscillator circuitry comprises a differential pair of transistors and can operate in an oscillating mode or a start-up mode. In the oscillating mode, the differential pair of transistors is cross-coupled so that a gate terminal of one transistor is coupled to a drain terminal of the other transistor, and vice versa, and the drain terminals are coupled to the crystal to generate the crystal oscillation signal. In the start-up mode, the kick-start circuit drives the gate terminals of the transistors with said pulses. This crystal oscillator circuit has a decreased start-up time compared to prior art solutions and a reduced influence of parasitic oscillations.
    Type: Application
    Filed: April 4, 2019
    Publication date: July 25, 2019
    Inventors: Anna Karin Stenman, Stefanos Stefanidis, Lars Sundström, Tahmineh Torabian Esfahani
  • Patent number: 10312860
    Abstract: A crystal oscillator circuit comprises a crystal; oscillator circuitry for generating a crystal oscillation signal at an oscillation frequency; and a kick-start circuit for injecting pulses into the crystal during a start-up period. The oscillator circuitry comprises a differential pair of transistors and can operate in an oscillating mode or a start-up mode. In the oscillating mode, the differential pair of transistors are cross-coupled so that a gate terminal of one transistor is coupled to a drain terminal of the other transistor, and vice versa, and the drain terminals are coupled to the crystal to generate the crystal oscillation signal. In the start-up mode, the kick-start circuit drives the gate terminals of the transistors with said pulses. This crystal oscillator circuit has a decreased start-up time compared to prior art solutions and a reduced influence of parasitic oscillations.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: June 4, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Anna Karin Stenman, Stefanos Stefanidis, Lars Sundström, Tahmineh Torabian Esfahani
  • Publication number: 20180198411
    Abstract: A crystal oscillator circuit comprises a crystal (X1); oscillator circuitry (31) for generating a crystal oscillation signal at an oscillation frequency; and a kick-start circuit (12) for injecting pulses into the crystal during a start-up period. The oscillator circuitry (31) comprises a differential pair of transistors (M1, M2) and can operate in an oscillating mode or a start-up mode. In the oscillating mode, the differential pair of transistors are cross-coupled so that a gate terminal of one transistor (M1) is coupled to a drain terminal of the other transistor (M2), and vice versa, and the drain terminals are coupled to the crystal (X1) to generate the crystal oscillation signal. In the start-up mode, the kick-start circuit (12) drives the gate terminals of the transistors (M1, M2) with said pulses. This crystal oscillator circuit has a decreased start-up time compared to prior art solutions and a reduced influence of parasitic oscillations.
    Type: Application
    Filed: March 13, 2015
    Publication date: July 12, 2018
    Inventors: Anna Karin Stenman, Stefanos Stefanidis, Lars Sundström, Tahmineh Torabian Esfahani