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).

  • Patent number: 12170584
    Abstract: There is disclosed a method of operating a receiving radio node in a wireless communication network, the method including performing channel estimation based on received signaling, the channel estimation providing a channel estimate value for each subcarrier of a set of subcarriers. The received signaling covers a number NPRB of Physical Resource Blocks, PRB, in frequency domain, each PRB having a number NSC of subcarriers. The set of subcarriers has a number NSUB of subsets of subcarriers, subcarriers of the same subset being associated to the same PRB of the number NPRB of PRBs. The channel estimation associates different channel estimate values to different subcarriers of one or more of the NSUB subsets. The disclosure also pertains to related devices and methods.
    Type: Grant
    Filed: April 1, 2021
    Date of Patent: December 17, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Gustav Almquist, Jung-Fu Cheng, Stephen Grant
  • Publication number: 20240413959
    Abstract: A base station, a wireless device and methods therein for supporting radio communication, wherein the base station employs carrier aggregation with multiple carriers serving a primary cell, PCell, and at least one secondary cell, SCell. The base station signals (3:3) an SCell status to the wireless device, the SCell status indicating whether the at least one SCell will be in active state where the base station transmits downlink signals on a carrier serving the at least one SCell, or in inactive state where the base station does not transmit downlink signals on the carrier serving the at least one SCell. Thereby, the wireless device can adapt its behaviour depending on the signalled SCell status, e.g. by turning off its receiver and not perform any signal measurements when the SCell is in inactive state.
    Type: Application
    Filed: August 21, 2024
    Publication date: December 12, 2024
    Inventors: Jung-Fu Cheng, Xinghua Song, Daniel Chen Larsson, Havish Koorapaty, Sorour Falahati, Stefan Parkvall, Rui Fan
  • Patent number: 12166590
    Abstract: Embodiments include methods for a user equipment (UE) configured to operate in a radio access network (RAN). Such methods include receiving, from a radio node in the RAN, a new feedback indicator (NFI) that indicates whether acknowledgement signaling previously scheduled for transmission by the UE was received by the radio node. The acknowledgement signaling is associated with one or more first downlink (DL) hybrid ARQ (HARQ) processes. Such methods include, when the NFI indicates the acknowledgement signaling was not received by the RAN node, selecting a first HARQ codebook to be used for encoding the acknowledgement signaling together with further acknowledgement signaling associated with one or more second DL HARQ processes. Such methods include, using the selected first HARQ codebook, encoding the acknowledgement signaling and the further acknowledgement signaling to obtain first encoded information and transmitting the first encoded information to the radio node via an uplink (UL) channel.
    Type: Grant
    Filed: December 14, 2023
    Date of Patent: December 10, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Reem Karaki, Daniel Chen Larsson, Jung-Fu Cheng, Stephen Grant, Havish Koorapaty, Gen Li
  • Patent number: 12167403
    Abstract: A radio device receives control information from a node of the wireless communication network. The control information is used for controlling semi-persistent allocation of radio resources of an unlicensed frequency spectrum. Based on the control information, the radio device controls at least one UL radio transmission on the radio resources of the unlicensed frequency spectrum.
    Type: Grant
    Filed: January 19, 2023
    Date of Patent: December 10, 2024
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Reem Karaki, Jung-Fu Cheng, Amitav Mukherjee
  • Patent number: 12167455
    Abstract: A wireless device (110) receives a frequency resource configuration (200) from an access node (120), the access node generates downlink control information DCI (201) and transmits a control message (202) including at least one slot format indicator, SFI, field and a frequency resource indicator field. Based on the frequency resource indicator, the wireless device determines whether a particular frequency resource is available for operation (203) and whether the wireless device can receive or transmit data on said frequency resource (204, 205).
    Type: Grant
    Filed: August 15, 2020
    Date of Patent: December 10, 2024
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Hazhir Shokri Razaghi, Min Wang, Reem Karaki, Stephen Grant, Iana Siomina, Tai Do, Yuhang Liu, Havish Koorapaty, Sorour Falahati, Jung-Fu Cheng
  • Publication number: 20240406962
    Abstract: A method of operating a wireless communication device comprises channel coding Channel State Information (CSI) bits jointly with Hybrid Automatic Repeat Request (HARQ) Acknowledgement (HARQ-ACK) bits, multiplexing the jointly coded CSI and HARQ-ACK bits with coded data bits, and transmitting the multiplexed coded CSI and HARQ-ACK bits and coded data bits on a physical uplink shared channel (PUSCH).
    Type: Application
    Filed: August 13, 2024
    Publication date: December 5, 2024
    Inventors: Havish Koorapaty, Jung-Fu Cheng, Cagatay Capar
  • Publication number: 20240406987
    Abstract: Systematic size matching procedures for downlink control information (DCI) provide exact instructions on how DCI size matching is to be performed in a NR wireless system, to meet predetermined limits for how many different DCI sizes may be monitored by a user equipment (UE). With these procedures, consistent and exact DCI size matching can be performed while keeping blind decoding procedures manageable, ensuring common understanding of DCI contents between the UE and the network.
    Type: Application
    Filed: July 17, 2024
    Publication date: December 5, 2024
    Inventors: Xingqin Lin, Stefan Parkvall, Jung-Fu Cheng, Jianwei Zhang
  • Patent number: 12160374
    Abstract: A method by a wireless (110) device includes receiving, from a network node (160), one or more bandwidth pieces. The data scheduled in one of the one or more bandwidth pieces includes at least one complete transport block and control information corresponding to the at least one complete transport block. The method further includes transmitting the data based on the scheduling or control information.
    Type: Grant
    Filed: August 22, 2019
    Date of Patent: December 3, 2024
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Jung-Fu Cheng, Reem Karaki, Stephen Grant, Gen Li
  • Publication number: 20240396773
    Abstract: A method, network node and wireless device (WD) for search space configurations for wideband communications are disclosed. According to one aspect, a method in a network node includes determining a WD processing capability NBD,?B-slot and NCCE,?B-slot, for processing a physical downlink control channel, PDCCH, according to: an operating numerology, ?; and a number B of slots. The method also includes configuring the WD to monitor for PDCCH based at least in part on the determined processing capability; and transmitting PDCCH to the WD in at least one of two slots n0 and n0+x in which the WD monitors for PDCCH, where x is greater than zero.
    Type: Application
    Filed: January 13, 2022
    Publication date: November 28, 2024
    Inventors: Jung-Fu CHENG, Stephen GRANT, Yuhang LIU, Peter ALRIKSSON, Emma WITTENMARK
  • Publication number: 20240397564
    Abstract: A system and method for providing time domain allocations in a communication system. In an embodiment, an apparatus operable in a communication system and including processing circuitry is configured to receive an indication of a time domain allocation in downlink control information associated with a radio network temporary identifier (“RNTI”) identifying the apparatus, and employ the time domain allocation associated with the RNTI for transmissions associated with the apparatus. In another embodiment, an apparatus operable in a communication system and including processing circuitry is configured to associate a time domain allocation with a RNTI identifying a user equipment, and provide an indication of the time domain allocation in downlink control information to allow the user equipment to employ the time domain allocation associated with the RNTI for transmissions associated therewith.
    Type: Application
    Filed: June 25, 2024
    Publication date: November 28, 2024
    Inventors: Jianwei Zhang, Stefan Parkvall, Fredrik Ovesjö, Zhipeng Lin, Jingya Li, Xingqin Lin, Jung-Fu Cheng, Robert Baldemair, Asbjörn Grövlen, Mattias Frenne
  • Patent number: 12137448
    Abstract: A method performed by a wireless device (110) includes receiving a configuration for one or more data transmission starting positions for a configured uplink, UL, in unlicensed spectrum. The one or more data transmission starting positions include at least a first starting position. The method further includes performing an UL transmission at one of the one or more data transmission starting positions based on when the wireless device is able to access a channel. The UL transmission includes UL control information, UCI, multiplexed in a Physical Uplink Shared Channel, PUSCH. The UCI carries one or more parameters for unlicensed spectrum.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: November 5, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Reem Karaki, Jung-Fu Cheng, Sorour Falahati
  • Patent number: 12127211
    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: February 11, 2020
    Date of Patent: October 22, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Reem Karaki, Havish Koorapaty, Min Wang, Jung-Fu Cheng, Yufei Blankenship
  • Patent number: 12108454
    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: May 9, 2023
    Date of Patent: October 1, 2024
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Stephen Grant, Reem Karaki, Peter Alriksson, Tai Do, Jung-Fu Cheng, Havish Koorapaty
  • Patent number: 12101787
    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: June 5, 2023
    Date of Patent: September 24, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Reem Karaki, Jung-Fu Cheng, Yuhang Liu, Stephen Grant
  • Patent number: 12088535
    Abstract: A base station (300), a wireless device (302) and methods thereinfor supporting radio communication, wherein the base station (300) employs carrier aggregation with multiple carriers serving a primary cell, PCell, and at least one secondary cell, SCell. The base station (300) signals (3:3) an SCell status to the wireless device (302), the SCell status indicating whether the at least one SCell will be in active state where the base station (300) transmits downlink signals on a carrier serving the at least one SCell, or in inactive state where the base station (300) does not transmit downlink signals on the carrier serving the at least one SCell. Thereby, the wireless device (302) can adapt its behaviour depending on the signalled SCell status, e.g. by turning off its receiver and not perform any signal measurements when the SCell is in inactive state.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: September 10, 2024
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Jung-Fu Cheng, Sorour Falahati, Rui Fan, Havish Koorapaty, Daniel Larsson, Stefan Parkvall, Xinghua Song
  • Publication number: 20240292418
    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: May 3, 2024
    Publication date: August 29, 2024
    Inventors: Jung-Fu CHENG, Stefan ERIKSSON LÖWENMARK, Havish KOORAPATY, Xingqin LIN
  • Publication number: 20240284368
    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 29, 2024
    Publication date: August 22, 2024
    Inventors: Havish Koorapaty, Mattias Frenne, Daniel Larsson, Jiann-Ching Guey, Jung-Fu Cheng
  • Patent number: 12068864
    Abstract: A wireless device receives downlink control information (DCI) from a network node, determines a physical downlink shared channel (PDSCH) group based on information in the received DCI, and transmits a hybrid automatic repeat request acknowledgement (HARQ-ACK) report to the network node based on the determined PDSCH group.
    Type: Grant
    Filed: May 23, 2022
    Date of Patent: August 20, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Reem Karaki, Johan Rune, Yuhang Liu, Sorour Falahati, Havish Koorapaty, Jung-Fu Cheng
  • Patent number: 12063671
    Abstract: Systematic size matching procedures for downlink control information, DCI, provide exact instructions on how DCI size matching is to be performed in a NR wireless system, to meet predetermined limits for how many different DCI sizes may be monitored by a user equipment, UE. With these procedures, consistent and exact DCI size matching can be performed while keeping blind decoding procedures manageable, ensuring common understanding of DCI contents between the UE and the network.
    Type: Grant
    Filed: October 28, 2019
    Date of Patent: August 13, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Xingqin Lin, Stefan Parkvall, Jung-Fu Cheng, Jianwei Zhang
  • Patent number: 12052777
    Abstract: A system and method for providing time domain allocations in a communication system. In an embodiment, an apparatus operable in a communication system and including processing circuitry is configured to receive an indication of a time domain allocation in downlink control information associated with a radio network temporary identifier (“RNTI”) identifying the apparatus, and employ the time domain allocation associated with the RNTI for transmissions associated with the apparatus. In another embodiment, an apparatus operable in a communication system and including processing circuitry is configured to associate a time domain allocation with a RNTI identifying a user equipment, and provide an indication of the time domain allocation in downlink control information to allow the user equipment to employ the time domain allocation associated with the RNTI for transmissions associated therewith.
    Type: Grant
    Filed: July 14, 2023
    Date of Patent: July 30, 2024
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Jianwei Zhang, Stefan Parkvall, Fredrik Ovesjö, Zhipeng Lin, Jingya Li, Xingqin Lin, Jung-Fu Cheng, Robert Baldemair, Asbjörn Grövlen, Mattias Frenne