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).

  • 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
  • Patent number: 10959260
    Abstract: A method and apparatus are disclosed for time resources for NRU configured UL. In one embodiment, a network node is configured to configure a wireless device (WD) with at least one configured grant, CG, uplink transmission configuration; and receive signaling based at least in part on the at least one CG uplink transmission configuration. In one embodiment, a wireless device (WD) is configured to obtain at least one configured grant, CG, uplink transmission configuration; and transmit signaling based at least in part on the obtained at least one CG uplink transmission configuration.
    Type: Grant
    Filed: July 24, 2020
    Date of Patent: March 23, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Reem Karaki, Yufei Blankenship, Jung-Fu Cheng, Havish Koorapaty, Min Wang
  • Publication number: 20210084637
    Abstract: Methods and apparatuses are disclosed for configuring a search space to the WD based on a Control Channel Element (CCE) limit of the WD. According to one or more embodiments, a network node configured to communicate with a wireless device is provided. The network node includes processing circuitry configured to receive a Control Channel Element, CCE, limit of the wireless device and configure a search space for the wireless device to monitor based at least in part on the CCE limit of the wireless device.
    Type: Application
    Filed: February 18, 2019
    Publication date: March 18, 2021
    Inventors: Jung-Fu CHENG, Stefan ERIKSSON LĂ–WENMARK, Havish KOORAPATY, Xingqin LIN
  • Patent number: 10952172
    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: Grant
    Filed: June 24, 2019
    Date of Patent: March 16, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Havish Koorapaty, Mattias Frenne, Daniel Larsson, Jiann-Ching Guey, Jung-Fu Cheng
  • Publication number: 20210075556
    Abstract: There is disclosed a method of operating a user equipment (10) in a radio access network, the method comprising transmitting acknowledgement signaling according to a HARQ codebook, the HARQ codebook being based on a received HARQ reception indication indicating reception of a previous scheduled transmission of acknowledgement signaling. The disclosure also pertains to related devices and methods.
    Type: Application
    Filed: May 11, 2018
    Publication date: March 11, 2021
    Inventors: Reem Karaki, Daniel Chen Larsson, Jung-Fu Cheng, Stephen Grant, Havish Koorapaty, Gen Li
  • Patent number: 10945275
    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: Grant
    Filed: September 9, 2019
    Date of Patent: March 9, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Daniel Larsson, Jung-Fu Cheng, Sorour Falahati, Havish Koorapaty
  • Publication number: 20210058908
    Abstract: Apparatuses and methods are disclosed for block interleaving. In one embodiment, a method includes generating an interleaver sequence for a control resource set, CORESET, configuration for a physical downlink control channel, the interleaver sequence associated with an interleaving matrix; optionally, for each one of an allowed value of number of rows for the interleaving matrix, determining a number of null entries to be added to the interleaving matrix; and selecting a number of rows. R, for the interleaving matrix such that the number of null entries to be added to the interleaving matrix is: no more than a number of columns, C, of the interleaving matrix; and optionally, the smallest among the numbers of null entries determined for each of the allowed values of number of rows for the interleaving matrix. In another embodiment, a method includes decomposing the interleaver sequence.
    Type: Application
    Filed: January 10, 2019
    Publication date: February 25, 2021
    Inventors: Xingqin LIN, Jung-Fu CHENG, Stefan PARKVALL, Havish KOORAPATY
  • Patent number: 10932283
    Abstract: A method of wireless communication via a first and a second communication channel in a frequency band shared between a first and second radio access technology comprising: a radio network access node distributing data packets for transmission via the first or the second communication channel, the radio network access node transmitting data packets via the first communication channel according to the first radio access technology in said shared frequency band, the radio network access node transmitting data packets via the second communication channel according to the second radio access technology in said shared frequency band, wherein the second radio access technology differs from the first radio access technology.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: February 23, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Amitav Mukherjee, Sorour Falahati, Reem Karaki, Havish Koorapaty
  • Patent number: 10925053
    Abstract: A method performed by a first communication device is described herein for sending an indication to a second communication device. The first communication device determines an indication of a subframe type. The subframe type is of a subframe sent on a carrier by a cell associated with the first communication device and a second communication device. The subframe type is one of punctured and normal. The first communication device sends the indication to the second communication device, the indication being as determined by the first communication device.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: February 16, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Amitav Mukherjee, Jung-Fu Cheng, Havish Koorapaty, Daniel Larsson
  • Patent number: 10925013
    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 (1110) 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 (1120), 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: Grant
    Filed: July 29, 2015
    Date of Patent: February 16, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Angelo Centonza, Havish Koorapaty
  • Patent number: 10917264
    Abstract: Methods of operating a network device for a user equipment, UE, in a telecommunications network is provided. Methods include generating a transmission gap at an end of a first type of uplink, UL, transmission and scheduling a second type of UL transmission that corresponds to the transmission gap. Generating the transmission gap includes sending, to the UE, a radio resource control that configures a potential sounding reference signal, SRS, transmission that generates the transmission gap.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: February 9, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Christian Bergljung, Havish Koorapaty, Daniel Chen Larsson, Ravikiran Nory
  • Publication number: 20210036801
    Abstract: A modulation technique, such as for example either Pi/2 BPSK or QPSK, is selected for transmission, based on a characteristic of the data to be transmitted, or the physical channel over which it is to be transmitted. The data characteristic may be the coding rate, or characteristics indirectly related to the coding rate, such as the number of coded bits or number of uncoded bits (payload size). The physical channel characteristic may for example be the physical channel bandwidth, the physical channel length, a number of physical channel modulation symbols, a number of the physical channel resource elements used for the data to be transmitted, or a number of the physical channel modulation symbols carrying the data to be transmitted.
    Type: Application
    Filed: September 13, 2018
    Publication date: February 4, 2021
    Applicant: Telefonaktiebolaget LM Ericsson (PUBL)
    Inventors: Robert BALDEMAIR, Erik DAHLMAN, Sorour FALAHATI, Havish KOORAPATY, Stefan PARKVALL
  • Publication number: 20210014099
    Abstract: Provided are methods of estimating a time delay and/or a frequency shift of a reference signal. Such methods include receiving a first reference signal that is generated using a first Zadoff-Chu (ZC) sequence, receiving a second reference signal that is generated using a second ZC sequence that is different than the first ZC sequence, and processing the first reference signal and the second reference signal to estimate at least one of the time delay and the frequency shift of the first reference signal and/or the second reference signal. The first ZC sequence is generated by a first root and the second ZC sequence is generated by a second root that is different than the first root.
    Type: Application
    Filed: September 1, 2020
    Publication date: January 14, 2021
    Inventors: Xingqin Lin, Ansuman Adhikary, Ali S. Khayrallah, Havish Koorapaty, Yi-Pin Eric Wang
  • Publication number: 20210007136
    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 transmitting a first burst of uplink subframes after a first LBT procedure performed using an LBT contention window size, and determining a reference subframe based on the first burst. The reference subframe is associated with a reference hybrid automatic repeat request (HARQ) process identifier. The method further comprises receiving scheduling for a second burst of uplink subframes. The scheduling comprises an associated HARQ process identifier and an associated new data indicator (NDI) for each subframe. When the UE determines the HARQ process identifier associated with at least one of the subframes of the second burst matches the reference HARQ process identifier, then if the associated NDI indicates new data, the method resets the LBT contention window size, else the method increments the LBT contention window size.
    Type: Application
    Filed: September 21, 2020
    Publication date: January 7, 2021
    Inventors: Sorour Falahati, Havish Koorapaty
  • Patent number: 10880922
    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: Grant
    Filed: May 18, 2017
    Date of Patent: December 29, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Havish Koorapaty, Jung-Fu Cheng, Sorour Falahati, Amitav Mukherjee
  • Publication number: 20200403751
    Abstract: A method of operating a signaling radio node in a radio access network is provided. The method includes transmitting control signaling to a feedback radio node. The control signaling includes control information having a bit pattern. The bit pattern has a subpattern with M bits in which the control information pertains to feedback signaling. A number M1 of the M bits of the subpattern is assigned to represent an assignment indication, and a number M2 of the M bits of the subpattern is assigned to represent a resource indication in which M1 and M2 are determined based on a size indication pertaining to the feedback signaling. The disclosure also pertains to related methods and devices.
    Type: Application
    Filed: November 27, 2017
    Publication date: December 24, 2020
    Inventors: Robert BALDEMAIR, Sorour FALAHATI, Havish KOORAPATY, Stefan PARKVALL
  • Publication number: 20200404706
    Abstract: Embodiments herein relate to a method performed by a first communication node operating in a wireless communications network. The first communication node adjusts a value of a Contention Window, CW, from a first value to a second value, the second value being a higher value than the first value, wherein adjusting the value is based on: one or more feedback timers having expired at a time of performing a sensing procedure in the absence of: a) a received uplink, UL, grant from a second communication node, or b) a downlink feedback from the second communication node for an Autonomous Uplink, AUL, transmission from the first communication node. Following adjusting the value, the first communication node initiates a sensing procedure performed prior to a transmission of an UL burst to the second communication node, wherein the sensing procedure uses the adjusted value of the CW.
    Type: Application
    Filed: February 14, 2019
    Publication date: December 24, 2020
    Inventors: Reem KARAKI, Jung-Fu CHENG, Havish KOORAPATY