Patents by Inventor Jung-Fu Cheng

Jung-Fu Cheng 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: 20230319824
    Abstract: A mechanism for time domain resource allocation for downlink shared channel, in which the time domain resource is allocated according to CORESET configurations when SS/PBCH block and RMSI CORESET are multiplexed with Type 1, Type 2 or Type 3 pattern.
    Type: Application
    Filed: June 7, 2023
    Publication date: October 5, 2023
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Zhipeng LIN, Jingya LI, Jung-Fu CHENG
  • Publication number: 20230309107
    Abstract: There is disclosed a method of operating a receiving radio node in a wireless communication network. The method includes communicating utilising data signaling based on a received control information message, the control information message scheduling multiple occurrences of data signaling, wherein communicating is based on extracting a code block group (CBG) setup for communicating based on the received control information message and/or a CBG configuration. The disclosure also pertains to related devices and methods.
    Type: Application
    Filed: June 5, 2023
    Publication date: September 28, 2023
    Inventors: Reem KARAKI, Jung-Fu CHENG, Yuhang LIU, Stephen GRANT
  • Patent number: 11770830
    Abstract: A method, wireless device and network node are configured to generate or process a control channel, having two multiplexed sequences based on a base sequence. In some embodiments, a method includes sampling even samples of the base sequence and modulating the sampled even samples to create a first control channel sequence. The method includes performing a second sampling of odd samples of the base sequence to create a second control channel sequence. The method also includes frequency division multiplexing the first and second control channel sequences to produce the control channel.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: September 26, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Fredrik Lindqvist, Robert Baldemair, Jung-Fu Cheng, Sorour Falahati, Havish Koorapaty
  • Patent number: 11770852
    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: September 20, 2022
    Date of Patent: September 26, 2023
    Assignee: Withrow & Terranova, PLLC
    Inventors: Havish Koorapaty, Jung-Fu Cheng, Sorour Falahati, Amitav Mukherjee
  • Publication number: 20230299911
    Abstract: There is disclosed a method of operating a transmitting radio node in a wireless communication network, the method including transmitting reference signaling based on a reference pilot sequence, the reference pilot sequence being one of a set of reference pilot sequences, at least one reference pilot sequence of the set being a subsequence of another reference pilot sequence of the set. The disclosure also pertains to related devices and methods.
    Type: Application
    Filed: April 28, 2023
    Publication date: September 21, 2023
    Inventors: Dennis HUI, Jung-Fu CHENG, Mehrnaz AFSHANG
  • Publication number: 20230300765
    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: April 6, 2023
    Publication date: September 21, 2023
    Inventors: Havish Koorapaty, Mattias Frenne, Daniel Larsson, Jiann-Ching Guey, Jung-Fu Cheng
  • Patent number: 11750428
    Abstract: There is disclosed a method of operating a radio node in a wireless communication network, the method including communicating based on a signaling structure, the signaling structure including a number R of long symbols and/or a number Nsym of regular symbols, wherein R and/or Nsym is based on the subcarrier spacing associated to the signaling structure and/or a cyclic prefix length of a long symbol and/or a cyclic prefix length of a regular symbol. The disclosure also pertains to related devices and methods.
    Type: Grant
    Filed: November 19, 2020
    Date of Patent: September 5, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Mehrnaz Afshang, Mohammad Mozaffari, Jung-Fu Cheng, Dennis Hui
  • Publication number: 20230276498
    Abstract: An example method is performed by a wireless device in a wireless communication network. The method comprises receiving, from a base station, a control message allocating resources in a bandwidth part for a downlink transmission, the bandwidth part including unlicensed spectrum and being divided into a plurality of bandwidth pieces corresponding to bandwidth units over which listen-before-talk (LBT) is performed. The radio resources used for the downlink transmissions exclude (e.g., by puncturing or rate-matching around) one or more guard bands of a bandwidth piece that is sensed as free for transmission.
    Type: Application
    Filed: May 9, 2023
    Publication date: August 31, 2023
    Inventors: Stephen Grant, Reem Karaki, Peter Alriksson, Tai Do, Jung-Fu Cheng, Havish Koorapaty
  • Patent number: 11743944
    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: August 2, 2021
    Date of Patent: August 29, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Havish Koorapaty, Sorour Falahati, Jung-Fu Cheng
  • Patent number: 11729814
    Abstract: Embodiments herein relate to a method performed by a scheduling node for scheduling an uplink transmission from a wireless device to the scheduling node, which wireless device is connected to a Primary Cell, Pcell, of the scheduling node in a licensed or unlicensed frequency band, and wherein the wireless device 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 about the determined at least one LBT parameter in a scheduling grant of the uplink transmission.
    Type: Grant
    Filed: June 7, 2021
    Date of Patent: August 15, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Amitav Mukherjee, Jung-Fu Cheng, Sorour Falahati, Laetitia Falconetti, Havish Koorapaty, Daniel Larsson
  • Patent number: 11728913
    Abstract: There is disclosed a method of operating a radio node in a wireless communication network. The method includes communicating using a selected signaling beam from a set of signaling beams, the selected signaling beam being selected based on a delay characteristic and a beam signaling characteristic of the signaling beams of the set of signaling beams. The disclosure also pertains to related devices and methods.
    Type: Grant
    Filed: April 5, 2022
    Date of Patent: August 15, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Joao Vieira, Robert Baldemair, Jung-Fu Cheng, Muris Sarajlic
  • Patent number: 11729826
    Abstract: A method of operating a wireless communication device comprises identifying a first start position for performing uplink (UL) transmission in unlicensed spectrum during a first transmission time interval, performing UL transmission in the first transmission time interval (TTI) according to the first start position, identifying a second start position for performing UL transmission in unlicensed spectrum during a second TTI, wherein the first and second start positions correspond to different symbol offsets within the respective first and second TTIs, and performing UL transmission in the second TTI according to the second start position.
    Type: Grant
    Filed: September 24, 2021
    Date of Patent: August 15, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Yu Yang, Reem Karaki, Havish Koorapaty, Jung-Fu Cheng, Sorour Falahati
  • Publication number: 20230239917
    Abstract: Embodiments of systems and methods for operating wireless communication devices (e.g., User Equipments (UEs)) as initiating and responding devices in a Frame-Based Equipment (FBE) New Radio (NR) Unlicensed (NR-U) network are disclosed. The proposed methods allow operating the NR-U network as an FBE system in a flexible manner that supports a wide range of deployments not limited to the UE operating as a responding device. In some embodiments, methods to operate UEs as initiating and responding devices in a FBE-based NR-U network are disclosed.
    Type: Application
    Filed: October 7, 2020
    Publication date: July 27, 2023
    Inventors: Reem Karaki, Sorour Falahati, Havish Koorapaty, Jung-Fu Cheng, Stephen Grant
  • Patent number: 11711815
    Abstract: There is disclosed a method of operating a receiving radio node in a wireless communication network. The method includes communicating utilising data signaling based on a received control information message, the control information message scheduling multiple occurrences of data signaling, wherein communicating is based on extracting a code block group (CBG) setup for communicating based on the received control information message and/or a CBG configuration. The disclosure also pertains to related devices and methods.
    Type: Grant
    Filed: January 22, 2021
    Date of Patent: July 25, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Reem Karaki, Jung-Fu Cheng, Yuhang Liu, Stephen Grant
  • Patent number: 11711803
    Abstract: A mechanism for time domain resource allocation for downlink shared channel, in which the time domain resource is allocated according to CORESET configurations when SS/PBCH block and RMSI CORESET are multiplexed with Type 1, Type 2 or Type 3 pattern.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: July 25, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Zhipeng Lin, Jingya Li, Jung-Fu Cheng
  • Patent number: 11711250
    Abstract: A method, system and apparatus are disclosed. 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 dynamically indicate a mixed numerology to the wireless device for implementation where the mixed numerology corresponds to a first numerology for a data channel and a second numerology for a control channel, the first numerology being different from the second numerology.
    Type: Grant
    Filed: March 12, 2021
    Date of Patent: July 25, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Jung-Fu Cheng, Yuhang Liu, Peter Alriksson, Stephen Grant, Tai Do
  • Patent number: 11711846
    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: June 15, 2021
    Date of Patent: July 25, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Reem Karaki, Yu Yang, Havish Koorapaty, Jung-Fu Cheng, Sorour Falahati
  • Patent number: 11706649
    Abstract: Channel state determination is performed at a user equipment (UE) of a mobile network. The UE determines one or a plurality of time intervals that may be used for channel measurements, performs a plurality of signal power measurements associated each to one of the time intervals to be used for channel measurement and generates a channel state information as a function of the plurality of the signal power measurements. Information comprising an indication of a plurality of time intervals that may be used for received signal power measurements is generated and sent from an access node (eNB) to the UE. The eNB evaluates a measurement report, received from the UE, that comprises received signal power measurements associated each to one of the time intervals.
    Type: Grant
    Filed: September 13, 2021
    Date of Patent: July 18, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Amitav Mukherjee, Jung-Fu Cheng, Sorour Falahati, Havish Koorapaty, Daniel Chen Larsson, Yu Yang
  • Patent number: 11700089
    Abstract: According to certain embodiments, a method is disclosed for operating a user equipment. The method comprises transmitting or receiving a transmission on at least one of the component carriers, wherein the at least one component carrier is associated with a slot duration that corresponds to a numerology of the component carrier. The transmitting or receiving on the at least one of the component carriers is based on a relation between a number of information bits on the at least one of the component carriers over one or more reference slot durations and a reference data rate.
    Type: Grant
    Filed: June 29, 2022
    Date of Patent: July 11, 2023
    Assignee: Teletonaktiebolaget LM Ericsson (publ)
    Inventors: Ajit Nimbalker, Jung-Fu Cheng, Ravikiran Nory
  • Publication number: 20230216716
    Abstract: There is disclosed a method of operating a receiving radio node in a wireless communication network. The method includes receiving first signaling, the first signaling covering at least one allocation unit carrying Demodulation Reference Signaling, DMRS. Receiving includes performing Inter Carrier Interference, ICI, suppression for the at least one allocation unit carrying DMRS based on received DMRS. The disclosure also pertains to related devices and methods.
    Type: Application
    Filed: March 13, 2023
    Publication date: July 6, 2023
    Inventors: Jung-Fu CHENG, Mehrnaz AFSHANG, Yuhang LIU, Stephen GRANT