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: 11659577
    Abstract: According to certain embodiments, a user equipment, UE, is operable for multiple sub-carrier spacing values. The UE comprises memory operable to store instructions and processing circuitry operable to execute the instructions, whereby the UE is operable to determine one of a plurality of time-domain resource allocation tables based on first information received from a network node. The first information comprises a Radio Network Temporary Identifier, RNTI. The UE is operable to determine a time-domain resource allocated to the UE for transmission or reception of a wireless signal based on the determined one of the plurality of time-domain resource allocation tables and second information received from the network node. The second information comprises a time-domain resource allocation field value received in downlink control information, DCI. The UE is further operable to transmit or receive the wireless signal using the determined time-domain resource.
    Type: Grant
    Filed: August 13, 2021
    Date of Patent: May 23, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Robert Baldemair, Jung-Fu Cheng, Daniel Larsson, Ravikiran Nory, Stefan Parkvall
  • Publication number: 20230156712
    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: Application
    Filed: January 19, 2023
    Publication date: May 18, 2023
    Inventors: Reem Karaki, Jung-Fu Cheng, Amitav Mukherjee
  • Publication number: 20230147504
    Abstract: There is disclosed a method of operating a transmitting node in a millimeter-wave communication network. The method includes transmitting communication signaling in a transmission timing structure, the communication signaling including leading reference signaling in a leading time interval at the beginning of the transmission timing structure and including trailing reference signaling in a trailing time interval at the end of the timing structure. The leading reference signaling starts with a first reference signaling time-domain sequence, and the trailing reference signaling ending with the first reference time-domain signaling sequence. The disclosure also pertains to related devices and methods.
    Type: Application
    Filed: January 5, 2023
    Publication date: May 11, 2023
    Inventors: Robert BALDEMAIR, Mehrnaz AFSHANG, Rikke APELFROJD, Jung-Fu CHENG, Ning HE, Dennis HUI, Stefan PARKVALL
  • Patent number: 11637726
    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: Grant
    Filed: March 25, 2021
    Date of Patent: April 25, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Jung-Fu Cheng, Mehrnaz Afshang, Yuhang Liu, Stephen Grant
  • Patent number: 11632205
    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: March 22, 2021
    Date of Patent: April 18, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Ajit Nimbalker, Jung-Fu Cheng, Ravikiran Nory
  • Patent number: 11627545
    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: January 27, 2021
    Date of Patent: April 11, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Havish Koorapaty, Mattias Frenne, Daniel Larsson, Jiann-Ching Guey, Jung-Fu Cheng
  • Patent number: 11622290
    Abstract: The present disclosure describes example techniques for configuring and utilizing common control channels and configuration thereof in wireless communication systems. For instance, in an aspect, the present disclosure describes an example method performed by a network node (106) (also referred to herein as a base station, eNB, next-generation NodeB (gNB), or the like) that includes generating resource location information identifying one or more candidate time-frequency resource locations for a common control channel utilized in the cell. In addition, the example method can include transmitting the resource location information to one or more UEs and/or one or more other network nodes.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: April 4, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Stefan Parkvall, Robert Baldemair, Jung-Fu Cheng, Sorour Falahati, Havish Koorapaty
  • 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: 20230101141
    Abstract: Embodiments of the present disclosure provide a method, a transmitter node, a receiver node, and a computer program product for communication of information in a communication channel comprising at least one main band and an adjacent guard band. The method is performed by a transmitter node in a wireless communication network. The method comprises determining whether to transmit information in the guard band based one or more configured transmission parameters associated with the transmitter node. Upon determination to transmit information in the guard band, the method comprises determining transmission power for frequency resources allocated in the guard band based on a spectral mask defining a power density limit across an allocated frequency range. The method further comprises transmitting first information on the frequency resources allocated in the guard band and second information on frequency resources allocated in the main band to a receiver node according to the determined transmission power.
    Type: Application
    Filed: September 15, 2021
    Publication date: March 30, 2023
    Inventors: Muris Sarajlic, Joao Vieira, Jung-Fu Cheng, Robert Baldemair
  • Publication number: 20230080567
    Abstract: The present disclosure described systems and methods for providing OTT services to a UE. An exemplary OTT-providing host computer includes a transceiver, a processor, and memory collective configured to provide the OTT service by initiating transmission of user data to the UE. To transmit the user data from the host computer to the wireless device, a network node sends a first control message for assigning a PDSCH, the first control message comprising a first MCS indication as described. The network node sends to the wireless device a second control message for assigning a PDSCH, the second control message comprising a second MCS indication as described. The network node transmits the user data thereafter.
    Type: Application
    Filed: November 8, 2022
    Publication date: March 16, 2023
    Inventors: Zhipeng Lin, Jingya Li, Robert Baldemair, Yufei Blankenship, Jung-Fu Cheng, Xingqin Lin, Ajit Nimbalker
  • Publication number: 20230067198
    Abstract: In one aspect, a wireless device receives a scheduling grant and a grant confirmation signal indicating that a network node has performed a CCA on a carrier and is releasing the carrier for the wireless device. An uplink message is transmitted on the carrier without performing a CCA on the carrier. In another aspect, a wireless device is connected to a first cell and a second cell configured on a carrier requiring an LBT protocol. The wireless device receives configuration messages indicating that downlink transmissions on the second cell are to be scheduled. This can mean self-scheduling for downlink on the second cell and cross-carrier scheduling for uplink on the first cell. The wireless device receives a scheduling grant in the first cell and performs a CCA in the second cell. The wireless device then transmits an uplink message responsive to success of the CCA.
    Type: Application
    Filed: November 11, 2022
    Publication date: March 2, 2023
    Inventors: Daniel Larsson, Jung-Fu Cheng, Sorour Falahati, Havish Koorapaty, Amitav Mukherjee, Yu Yang
  • 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: 20230056055
    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: October 20, 2022
    Publication date: February 23, 2023
    Inventors: Jianwei Zhang, Stefan Parkvall, Fredrik Ovesjö, Zhipeng Lin, Jingya Li, Xingqin Lin, Jung-Fu Cheng, Robert Baldemair, Asbjörn Grövlen, Mattias Frenne
  • Publication number: 20230057016
    Abstract: Embodiments include methods, performed by a user equipment (UE), for receiving system information (SI) associated with a cell in a wireless network. Such methods include receiving, from the wireless network, a master information block (MIB) including SI associated with the cell. The MIB can be applicable to both a first frequency band and a second frequency band that have a common frequency range. Such methods also include determining whether the MIB applies to the first frequency band or the second frequency band. Other embodiments include complementary methods performed by a network node serving the cell in the wireless network, as well as UEs and network nodes configured to perform operations corresponding to such methods.
    Type: Application
    Filed: January 18, 2021
    Publication date: February 23, 2023
    Inventors: Peter Alriksson, Havish Koorapaty, Stephen Grant, Jung-Fu Cheng
  • Patent number: 11589377
    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: April 13, 2021
    Date of Patent: February 21, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Reem Karaki, Jung-Fu Cheng, Amitav Mukherjee
  • Publication number: 20230048797
    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, comprises 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 comprises transmitting a first Downlink Control Information, DCI, scheduling the PDSCH; and transmitting 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.
    Type: Application
    Filed: October 27, 2022
    Publication date: February 16, 2023
    Inventors: Reem KARAKI, Havish KOORAPATY, Jung-Fu CHENG, Gen LI, Stephen GRANT, Daniel CHEN LARSSON
  • Publication number: 20230038315
    Abstract: A method performed in a system comprising a joint traffic direction scheduler configured to coordinate time-division-duplexing (TDD) transmissions for multiple cells comprises obtaining TDD operation information from each of the cells, determining, based on the obtained TDD operation information, a transmission direction to be used by each of the cells during one or more transmission time intervals (TTIs), and indicating to the cells the determined transmission direction.
    Type: Application
    Filed: September 13, 2022
    Publication date: February 9, 2023
    Inventors: Du Ho Kang, Jung-Fu Cheng, Havish Koorapaty, Sorour Falahati
  • Publication number: 20230039107
    Abstract: There is disclosed a method of operating a feedback radio node in a radio access network. The method includes transmitting feedback signalling representing an encoded sequence of bits, the encoded sequence of bits representing a sequence of feedback information bits, the sequence of feedback information bits comprising a plurality of subpatterns, each subpattern having a type of a set of types. The set of types has a first type and a second type, the subpatterns being ordered in the sequence according to their type. The disclosure also pertains to related devices and methods.
    Type: Application
    Filed: August 6, 2021
    Publication date: February 9, 2023
    Inventors: Yuhang LIU, Stephen GRANT, Jung-Fu CHENG
  • 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
  • Patent number: 11573504
    Abstract: Systems and methods relating to accurate Channel State Information (CSI) measurements for a License Assisted Secondary Cell (LA SCell) are disclosed herein. In some embodiments, a wireless device enabled to operate in a cellular communications network according to a carrier aggregation scheme using both a licensed frequency band and an unlicensed frequency band operates to determine whether a Channel State Information Reference Symbol (CSI-RS) transmission from a LA SCell of the wireless device is present in a subframe, where the LA SCell is in an unlicensed frequency band. The wireless device further operates to process a CSI-RS measurement for the LA SCell for the subframe upon determining that a CSI-RS transmission from the LA SCell is present in the subframe and refrain from processing a CSI-RS measurement for the LA SCell for the subframe upon determining that a CSI-RS transmission from the LA SCell is not present in the subframe.
    Type: Grant
    Filed: April 14, 2020
    Date of Patent: February 7, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Mattias Frenne, Jung-Fu Cheng, Sorour Falahati, Havish Koorapaty, Daniel Larsson