Patents by Inventor Havish Koorapaty

Havish Koorapaty 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: 11122450
    Abstract: The invention refers to determining a channel state performed at a user device, UE (12), of a mobile network, comprising determining (S21) one or a plurality of time intervals that may be used for channel measurements, performing (S22) a plurality of signal power measurements associated each to one of the time intervals to be used for channel measurement and generating a channel state information as a function of the plurality of the signal power measurements; the invention further refers to generating (S11) an information comprising an indication a plurality of time intervals that may be used for received signal power measurements to be sent from an access node, eNB (14) to the UE (12), and evaluating a measurement report received from the UE (12), wherein the report comprises received signal power measurements associated each to one of the time intervals; the invention further refers to a corresponding UE (12), eNB (14) and to corresponding computer programs.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: September 14, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Amitav Mukherjee, Jung-Fu Cheng, Sorour Falahati, Havish Koorapaty, Daniel Larsson, Yu Yang
  • Publication number: 20210259014
    Abstract: There is disclosed a method of operating a wireless device in a wireless communication network, the method including performing a clear channel assessment (CCA) procedure in an idle interval of a first fixed frame period preceding a second fixed frame period, wherein the start of a first configured transmission occasion coincides with the start of the channel occupancy interval of the second fixed frame period. The method further includes transmitting communication signaling based on the result of the CCA procedure. The disclosure also pertains to related devices and methods.
    Type: Application
    Filed: February 14, 2020
    Publication date: August 19, 2021
    Inventors: Sorour FALAHATI, Reem KARAKI, Havish KOORAPATY
  • Publication number: 20210258975
    Abstract: According to some embodiments, a method in a network node comprises determining a first uplink/downlink scheduling pattern for a first plurality of consecutive subframes; transmitting the first uplink/downlink scheduling pattern to a wireless device; transmitting at least one subframe to the wireless device according to the first uplink/downlink scheduling pattern; determining a second uplink/downlink scheduling pattern for a second plurality of consecutive subframes, wherein the first plurality of consecutive subframes and the second plurality of consecutive subframes share at least one subframe; and transmitting the second uplink/downlink scheduling pattern to the wireless device.
    Type: Application
    Filed: March 3, 2021
    Publication date: August 19, 2021
    Inventors: Daniel Larsson, Jung-Fu CHENG, Sorour FALAHATI, Havish KOORAPATY
  • Publication number: 20210243705
    Abstract: Methods for enabling and disabling of muting patterns in Radio Access Network, RAN, nodes for the purpose of allowing better detection and use of reference symbols used for synchronization. An example method for facilitating over-the-air synchronization with a neighboring base station is implemented in a base station operating in a wireless communications network. The method comprises determining that a first neighbor cell of a plurality of neighbor cells is interfering with or is likely to interfere with a signal, from the second neighbor cell, that is used for synchronization. The method further comprises sending, towards the first neighbor cell and in response to said determining, a request for activation of a reference signal muting pattern by the first neighbor cell.
    Type: Application
    Filed: January 18, 2021
    Publication date: August 5, 2021
    Inventors: Angelo Centonza, Havish Koorapaty
  • Patent number: 11083017
    Abstract: According to some embodiments, a method for use in a user equipment (UE) of managing a listen-before-talk (LBT) contention window size comprises receiving scheduling for a current burst of contiguous uplink subframes. For each subframe the scheduling comprises an associated hybrid automatic repeat request (HARQ) process identifier and a new data indicator (NDI). The method determines a reference subframe based on a previously-scheduled burst of contiguous uplink subframes. The reference subframe is associated with a reference HARQ process identifier. When the UE determines the HARQ process identifier associated with a subframe of the current scheduled burst of contiguous uplink subframes matches the reference HARQ process identifier and the NDI indicates new data, the method resets the LBT contention window. When the reference HARQ process identifier matches, but the associated NDI indicates a retransmission, or the HARQ process identifier does not match, the method increments the LBT contention window.
    Type: Grant
    Filed: May 5, 2017
    Date of Patent: August 3, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Havish Koorapaty, Sorour Falahati, Jung-Fu Cheng
  • Patent number: 11076357
    Abstract: Systems and methods relating to transmit power control are disclosed. In some embodiments, a method of operation of a radio access node for providing transmit power control commands to a wireless device for uplink (UL) transmission on a cell that operates in an unlicensed frequency spectrum is provided. The method comprises indicating, for the cell that operates in the unlicensed frequency spectrum, a dynamic Transmit Power Control (TPC) command using a downlink (DL) control channel which indicates a DL-UL allocation of upcoming subframes in the cell that operates in the unlicensed frequency spectrum. In some embodiments, the DL control channel is a common DL control channel. In some other embodiments, the DL channel is a common Physical Downlink Control Channel (PDCCH).
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: July 27, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Amitav Mukherjee, Havish Koorapaty
  • Patent number: 11070302
    Abstract: A method in a user equipment (UE) (110B) is disclosed. The method comprises obtaining (404) an indication of one or more sets of time and frequency resources to be measured by the UE. The method comprises performing (408) one or more measurements on each of the one or more sets of time and frequency resources. The method comprises reporting (412), to a network node (115), a measurement value for each of the one or more sets of time and frequency resources, the measurement value indicative of cross-link interference at the UE due to transmissions by one or more different UEs (110A, 110C, 110D, 110E).
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: July 20, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Du Ho Kang, Sorour Falahati, Sebastian Faxér, Robert Mark Harrison, Havish Koorapaty
  • Patent number: 11064522
    Abstract: Systems and methods are disclosed herein that relate to multiple candidate starting points for a transmit burst in unlicensed spectrum. In some embodiments, a method of operation of a radio access node for performing a transmit burst in an unlicensed spectrum comprises transmitting a transmit burst in an unlicensed spectrum, wherein the transmit burst spans multiple subframes/slots and the transmitting of the transmit burst starts at one of a plurality of candidate starting points defined in at least a first subframe/slot of the transmit burst that occurs after successful completion of a Listen-Before-Talk (LBT) procedure for the transmit burst. In this manner, a radio access node (e.g., an enhanced or evolved Node B (eNB) in Long Term Evolution (LTE)) has flexibility to transmit a downlink transmit burst starting at different starting positions based on LBT outcome.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: July 13, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Reem Karaki, Yu Yang, Havish Koorapaty, Jung-Fu Cheng, Sorour Falahati
  • Patent number: 11064515
    Abstract: Systems and methods for determining an uplink control channel resource to use for transmitting uplink control information to a network node are disclosed. In some embodiments, a method performed by a wireless device comprises receiving a first downlink control channel message that schedules a first downlink shared channel transmission, receiving a second downlink control channel message that schedules a second downlink shared channel transmission, and determining an uplink control channel resource to use for transmitting uplink control information to a network node.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: July 13, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Havish Koorapaty, Sorour Falahati, Robert Baldemair, Daniel Larsson
  • Patent number: 11057928
    Abstract: Embodiments herein relate to a method performed by a scheduling node (12) for scheduling an uplink transmission from a wireless device (10) to the scheduling node (12), which wireless device (10) is connected to a Primary Cell, Pcell, of the scheduling node in a licensed or unlicensed frequency band, and wherein the wireless device (10) is also connected to at least one Secondary Cell, SCell, in an unlicensed frequency band. The scheduling node determines at least one Listen Before Talk, LBT, parameter associated with an LBT procedure and informs the wireless device (10) about the determined at least one LBT parameter in a scheduling grant of the uplink transmission.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: July 6, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Amitav Mukherjee, Jung-Fu Cheng, Sorour Falahati, Laetitia Falconetti, Havish Koorapaty, Daniel Larsson
  • Patent number: 11057944
    Abstract: Systems and methods are disclosed that enable multi-cast transmissions (e.g., Physical Multi-cast Channel (PMCH) transmissions) on carriers in unlicensed spectrum. In some embodiments, a method of operation of a radio access node to enable multi-cast transmissions on a carrier in an unlicensed spectrum comprises performing a Listen-Before-Talk (LBT) procedure on a carrier in an unlicensed spectrum based on random backoff and a contention window size prior to a multi-cast transmission. The method further comprises transmitting the multi-cast transmission if the LBT procedure determines that the carrier in the unlicensed spectrum is Idle. In this manner, multi-cast transmissions on the carrier in the unlicensed spectrum are enabled.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: July 6, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Havish Koorapaty, Jung-Fu Cheng, Amitav Mukherjee
  • Publication number: 20210204227
    Abstract: Methods and apparatuses are disclosed for power headroom report (PHR) reporting determination for dual-connectivity. In one embodiment, a method in a wireless device is provided including operating in dual-connectivity with at least two different radio access technologies, RATs, the at least two different RATs including at least a first RAT and a second RAT; determining a first power headroom report, PHR, for the first RAT based at least in part on a WD transmission using the first RAT; determining a second PHR for the second RAT based at least in part on both the WD transmission using the first RAT and the WD transmission using the second RAT; and transmitting based on a received allocation information, the allocation information based at least in part on at least one of the determined first PHR and the determined second PHR.
    Type: Application
    Filed: August 8, 2019
    Publication date: July 1, 2021
    Inventors: Christian BERGLJUNG, Daniel CHEN LARSSON, Havish KOORAPATY, Ravikiran NORY
  • Publication number: 20210185544
    Abstract: A method by one or more network devices for determining parameter values for a base station of a cellular network operating in a wireless band that is shared with one or more wireless access points. The parameter values are determined to optimize network performance in a manner that allows for fair coexistence between the base station and the one or more wireless access points. The method includes determining, using a machine learning system, parameter values for the base station based on proximity information and activity information for the one or more wireless access points, causing the base station to be configured with the parameter values, determining a measure of how configuring the base station with the parameter values affected network performance based on comparing the level of network performance before and after the base station was configured with the parameter values, and training the machine learning system using the measure.
    Type: Application
    Filed: February 23, 2021
    Publication date: June 17, 2021
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Issa AL-FANEK, Havish KOORAPATY, Meral SHIRAZIPOUR, Heikki MAHKONEN, Ravi MANGHIRMALANI
  • Publication number: 20210167900
    Abstract: Methods and apparatuses are disclosed for Hybrid Automatic Repeat reQuest Acknowledgement, HARQ-ACK, feedback. In one embodiment, a method implemented in a wireless device, WD, includes receiving, from a network node, a first Downlink Control Information, DCI, scheduling a physical downlink shared channel, PDSCH, and receiving, from the network node, a second DCI, the second DCI comprising a HARQ-ACK feedback request trigger triggering a HARQ-ACK feedback for the PDSCH scheduled by the first DCI. In another embodiment, a method implemented in a network node includes transmitting a first Downlink Control Information, DCI, scheduling the PDSCH, and transmitting a second DCI, the second DCI having a HARQ-ACK feedback request trigger triggering a HARQ-ACK feedback for the PDSCH scheduled by the first DCI.
    Type: Application
    Filed: May 9, 2019
    Publication date: June 3, 2021
    Inventors: Reem KARAKI, Havish KOORAPATY, Jung-Fu CHENG, Gen LI, Stephen GRANT, Daniel CHEN LARSSON
  • Publication number: 20210153150
    Abstract: The scheduling flexibility of CSI reference signals enables time and frequency synchronization using multiple non-zero CSI-RSs transmitted in the same subframe, or using CSI-RSs transmitted in the same subframe with other synchronization signals. Also, multiple synchronization signals may be scheduled in the same subframe to enable fine time and frequency synchronization without cell-specific reference signals.
    Type: Application
    Filed: January 27, 2021
    Publication date: May 20, 2021
    Inventors: Havish Koorapaty, Mattias Frenne, Daniel Larsson, Jiann-Ching Guey, Jung-Fu Cheng
  • Publication number: 20210152261
    Abstract: The invention relates to a method for operating a network node in a wireless network. The method includes detecting cross-link interference on one or more time slots used when communicating with the network node, identifying an aggressor node generating the detected cross link interference, and transmitting, to the aggressor node, a signal having an indication of slot number and/or a transmission direction of the detected cross link interference.
    Type: Application
    Filed: June 5, 2018
    Publication date: May 20, 2021
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Du Ho KANG, Havish KOORAPATY
  • Publication number: 20210143953
    Abstract: A wireless device monitors search spaces by receiving an orthogonal frequency-division multiplexing, OFDM, symbol in a downlink slot. The OFDM symbol is included in a control-resource set, CORESET, of resource elements configured to carry control information. The CORESET is associated with at least one property. The wireless device identifies at least one first property of the at least one property of the CORESET. The wireless device monitors at least one particular search space for a control message related to the wireless device based on the identified at least one first property of the CORESET.
    Type: Application
    Filed: May 4, 2018
    Publication date: May 13, 2021
    Inventors: Stefan PARKVALL, Havish KOORAPATY, Daniel CHEN LARSSON
  • Patent number: 10966097
    Abstract: A method is implemented by a network device for determining parameter values for a base station of a cellular network. The base station operates in a wireless band that is shared with one or more wireless access points. The parameter values are determined to optimize network performance while ensuring fair coexistence between the base station and the one or more wireless access points. The method includes obtaining proximity information for the one or more wireless access points relative to the base station, obtaining activity information for the one or more wireless access points, and determining parameter values for the base station based on the proximity information and the activity information.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: March 30, 2021
    Inventors: Issa Al-Fanek, Havish Koorapaty, Meral Shirazipour, Heikki Mahkonen, Ravi Manghirmalani
  • Publication number: 20210092681
    Abstract: Embodiments herein relate to a method performed by a user equipment, UE (10), for communicating in a wireless communication network. The UE (10) receives a wake-up signal with a multibit indication from a radio network node (12), wherein the multibit indication comprises a first bit indicating to start or not to start, for a first cell, an on-duration timer at one or more of the next occurrence of an on-duration, and a second bit indicating to apply dormancy or non-dormancy behavior on a second cell at the next occurrence of an on-duration for the second cell. The UE (10) further performs an action related to the wake-up signal taking the received multibit indication into account.
    Type: Application
    Filed: December 8, 2020
    Publication date: March 25, 2021
    Inventors: Ravikiran Nory, Ajit Nimbalker, Sorour Falahati, Havish Koorapaty
  • Publication number: 20210092769
    Abstract: According to some embodiments, a method for use in a user equipment (UE) of transmitting uplink data in unlicensed spectrum comprises receiving, from a network node, an uplink grant comprising an indication of one or more subframes to use for transmitting uplink data. Each subframe comprises a plurality of symbols. The method further comprises obtaining an indication of a listen-before-talk (LBT) type. The LBT type indicates a type of LBT procedure that the UE should perform before transmitting uplink data. The method further comprises determining, using the obtained LBT type, at least one of a starting symbol and a stopping symbol for transmitting uplink data, and transmitting uplink data according to at least one of the determined starting symbol and the determined stopping symbol.
    Type: Application
    Filed: December 3, 2020
    Publication date: March 25, 2021
    Inventors: Havish Koorapaty, Jung-Fu Cheng, Sorour Falahati, Amitav Mukherjee