Patents by Inventor Tai Do

Tai Do 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: 11979199
    Abstract: A method is disclosed for a wireless transceiver comprising a plurality of transceiver antenna elements and configured to operate in a communication network. The method comprises dynamically assigning (from the plurality of transceiver antenna elements) a first set of transceiver antenna elements allocated for channel sensing and a second set of transceiver antenna elements allocated for communication, performing channel sensing using the first set of transceiver antenna elements, and operating the wireless transceiver based on a result of the performed channel sensing.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: May 7, 2024
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Joao Vieira, Narendar Madhavan, Leif Wilhelmsson, Tai Do
  • Publication number: 20240129903
    Abstract: A method for use in a User Equipment configured to operate according to the New Radio (5G) standard, said method comprising: monitoring a control region for mini-slots for a transmission; detecting a start of the transmission; monitoring a control region of said transmission for regular slots; detecting that the transmission has ended; and in response thereto monitoring the control region for mini-slots again.
    Type: Application
    Filed: September 12, 2023
    Publication date: April 18, 2024
    Inventors: Peter Alriksson, Tai Do, Reem Karaki, Gen LI, Amitav Mukherjee, Yu Yang
  • Publication number: 20240049282
    Abstract: Systems and methods for efficient use of unlicensed spectrum are disclosed. In some embodiments, a method performed by a transmitter comprises performing a Listen-Before-Talk (LBT) procedure for a channels within a transmit bandwidth of the transmit node, where the transmit bandwidth is divided into a bandwidth parts that correspond to the channels. The method further comprises transmitting a transmission in a subset of the bandwidth parts that correspond to a subset of the channels determined, based on a result of the LBT procedure, to be available. Transmitting the transmission comprises transmitting the transmission in accordance with a transmit scheme that uses carrier aggregation and/or carrier merging to transmit the transmission on the subset of the bandwidth parts and uses resources in one or more guard bands between two or more adjacent bandwidth parts from among the subset of the bandwidth parts.
    Type: Application
    Filed: October 16, 2023
    Publication date: February 8, 2024
    Inventors: Tai Do, Peter Alriksson, Thomas Nilsson
  • Patent number: 11838235
    Abstract: A method, wireless device, and network node for increasing the capacity on a control channel when using Frequency Division Multiplexing (FDM) of data and DMRS are disclosed. According to one aspect, a wireless device (WD) is configured to perform intra-symbol frequency division multiplexing of data subcarriers and demodulation reference signal, DMRS, subcarriers. The WD is also configured to apply intra-symbol orthogonal cover codes, OCCs, to the data subcarriers. The WD is further configured to apply intra-symbol cyclic shifts to the DMRS subcarriers.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: December 5, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Gustav Almquist, Tai Do, Stephen Grant
  • Patent number: 11792849
    Abstract: Systems and methods for efficient use of unlicensed spectrum are disclosed. In some embodiments, a method performed by a transmitter comprises performing a Listen-Before-Talk (LBT) procedure for a channels within a transmit bandwidth of the transmit node, where the transmit bandwidth is divided into a bandwidth parts that correspond to the channels. The method further comprises transmitting a transmission in a subset of the bandwidth parts that correspond to a subset of the channels determined, based on a result of the LBT procedure, to be available. Transmitting the transmission comprises transmitting the transmission in accordance with a transmit scheme that uses carrier aggregation and/or carrier merging to transmit the transmission on the subset of the bandwidth parts and uses resources in one or more guard bands between two or more adjacent bandwidth parts from among the subset of the bandwidth parts.
    Type: Grant
    Filed: February 4, 2021
    Date of Patent: October 17, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Tai Do, Peter Alriksson, Thomas Nilsson
  • Publication number: 20230327927
    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: Application
    Filed: June 1, 2023
    Publication date: October 12, 2023
    Inventors: Jung-Fu CHENG, Yuhang LIU, Peter ALRIKSSON, Stephen GRANT, Tai DO
  • Publication number: 20230328775
    Abstract: Systems and methods for changing Listen Before Talk (LBT) for unlicensed networks are provided. In some embodiments, a method performed by a wireless device includes: receiving signaling from a base station that indicates when the wireless device uses LBT for transmissions; determining, based on the received signaling, whether or not to use LBT for transmissions; and transmitting based on the determination whether or not to use LBT for transmissions. Some embodiments provide a low complexity (in term of signaling overhead and specification impact) approach of adaptively using LBT mechanism by defining two simple modes for LBT operation (LBT and No LBT modes). Some embodiments reduce the probability of simultaneous transmissions that cause collisions, by using LBT mode, in environments and circumstances where network performance suffers from collision and/or interferences.
    Type: Application
    Filed: August 13, 2021
    Publication date: October 12, 2023
    Inventors: Tai Do, Peter Alriksson, Reem Karaki, Aliakbar Mirzaei, Havish Koorapaty, Yuhang Liu
  • Patent number: 11765704
    Abstract: A method for use in a User Equipment configured to operate according to the New Radio (5G) standard, said method comprising: monitoring a control region for mini-slots for a transmission; detecting a start of the transmission; monitoring a control region of said transmission for regular slots; detecting that the transmission has ended; and in response thereto monitoring the control region for mini-slots again.
    Type: Grant
    Filed: August 25, 2022
    Date of Patent: September 19, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (publ)
    Inventors: Peter Alriksson, Tai Do, Reem Karaki, Gen Li, Amitav Mukherjee, Yu Yang
  • 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: 11716634
    Abstract: A network node is arranged to provide communication at least in an unlicensed band where clear channel assessment, CCA, is required before transmissions. The unlicensed band comprises a plurality of carriers, or sets of carriers, defining channels.
    Type: Grant
    Filed: July 7, 2022
    Date of Patent: August 1, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Peter Alriksson, Tai Do, Reem Karaki, Thomas Nilsson
  • 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
  • Publication number: 20230198705
    Abstract: A method, wireless device, and network node for increasing the capacity on a control channel when using Frequency Division Multiplexing (FDM) of data and DMRS are disclosed. According to one aspect, a wireless device (WD) is configured to perform intra-symbol frequency division multiplexing of data subcarriers and demodulation reference signal, DMRS, subcarriers. The WD is also configured to apply intra-symbol orthogonal cover codes, OCCs, to the data subcarriers. The WD is further configured to apply intra-symbol cyclic shifts to the DMRS subcarriers.
    Type: Application
    Filed: May 8, 2019
    Publication date: June 22, 2023
    Inventors: Gustav ALMQUIST, Tai DO, Stephen GRANT
  • Patent number: 11659594
    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: Grant
    Filed: September 30, 2019
    Date of Patent: May 23, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Stephen Grant, Reem Karaki, Peter Alriksson, Tai Do, Jung-Fu Cheng, Havish Koorapaty
  • Publication number: 20230129180
    Abstract: A method for use in a User Equipment configured to operate according to the New Radio (5G) standard, said method comprising: monitoring a control region for mini-slots for a transmission; detecting a start of the transmission; monitoring a control region of said transmission for regular slots; detecting that the transmission has ended; and in response thereto monitoring the control region for mini-slots again.
    Type: Application
    Filed: August 25, 2022
    Publication date: April 27, 2023
    Inventors: Peter Alriksson, Tai Do, Reem Karaki, Gen Li, Amitav Mukherjee, Yu Yang
  • Publication number: 20230100135
    Abstract: There is disclosed a method of operating a feedback radio node in a radio access network, the method including transmitting measurement reporting, wherein the measurement reporting is based on measurement performed based on one or more QCL assumptions. The disclosure also pertains to related devices and methods.
    Type: Application
    Filed: September 28, 2021
    Publication date: March 30, 2023
    Inventors: Yuhang LIU, Stephen GRANT, Peter ALRIKSSON, Tai DO
  • Publication number: 20230101410
    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: Application
    Filed: March 12, 2021
    Publication date: March 30, 2023
    Inventors: Jung-Fu CHENG, Yuhang LIU, Peter ALRIKSSON, Stephen GRANT, Tai DO
  • Publication number: 20230066568
    Abstract: A method of allocating radio resources of a radio communication using orthogonal frequency-division multiplexing, OFDM, symbols, OSs is presented. The method includes allocating the radio resources of the radio communication in a time domain in terms of symbol bundles, SBs, where each of the SBs comprising a plurality of OSs.
    Type: Application
    Filed: February 11, 2021
    Publication date: March 2, 2023
    Inventors: Tai Do, Peter Alriksson, Yuhang Liu, Jung-Fu Cheng, Stephen Grant
  • Publication number: 20230041484
    Abstract: A first group embodiments provide a method performed by a network node (NN) in a wireless network comprising responsive to a DL data intended for a user equipment (UE), transmitting a first short signal burst to the UE over a channel using a directional beam, and based on detecting a first response to the first short signal burst from the UE indicating that the channel is available, transmitting at least a portion of the DL data to the UE over the channel using the directional beam. A second group embodiments provide a method performed by a NN comprising determining availability of a channel between the network node and the UE using a directional beam, based on determining that the channel is available, transmitting a first resource grant for transmission of a UL data by the UE, and receiving the UL data from the UE over the channel using the directional beam.
    Type: Application
    Filed: February 1, 2021
    Publication date: February 9, 2023
    Inventors: Yuhang Liu, Jung-Fu Cheng, Peter Alriksson, Tai Do, Aliakbar Mirzaei
  • Publication number: 20220377619
    Abstract: Systems and methods are disclosed herein that relate to frequency domain resource allocation for interlaced transmission. Embodiments of a method performed by a wireless device are disclosed. In one embodiment, a method performed by a wireless device comprises receiving a reserved resource indicator that indicates an uplink reserved resource pattern. The uplink reserved resource pattern defines at least which subset of uplink Physical Resource Blocks (PRBs) from among a set of allocated uplink PRBs are not available for uplink transmission. In this manner, a low overhead, flexible frequency domain resource allocation scheme for partial interlace transmission is provided.
    Type: Application
    Filed: July 1, 2020
    Publication date: November 24, 2022
    Inventors: Stephen Grant, Jung-Fu Cheng, Tai Do, Reem Karaki, Johan Rune
  • Patent number: D1029404
    Type: Grant
    Filed: November 21, 2023
    Date of Patent: May 28, 2024
    Assignee: Cattasaurus LLC
    Inventor: Tai Do Anh Tran