Patents by Inventor Dalin ZHU

Dalin ZHU 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: 20250150151
    Abstract: Methods and apparatuses for beam failure recovery under unified TCI framework with multi-TRP operation. A method performed by a user equipment (UE) includes receiving a first transmission configuration indication (TCI) state and a second TCI state, transmitting a capability signaling, and determining, based on the capability signaling, a beam failure detection (BFD) reference signal (RS) resource set q0 from the first or second TCI state or the first and second TCI state. The method further includes receiving a new beam RS resource set q1 associated with the q0, receiving a RS resource index qnew from the q1 and a beam failure recovery (BFR) response (BFRR), determining, based on the q0, qnew, and BFRR, a quasi-co-location (QCL) assumption for receiving downlink (DL) channels or signals, and determining, based on the q0, qnew, and BFRR, a spatial domain filter for transmitting uplink (UL) channels or signals.
    Type: Application
    Filed: October 23, 2024
    Publication date: May 8, 2025
    Inventors: Dalin Zhu, Emad Nader Farag, Eko Onggosanusi
  • Patent number: 12294884
    Abstract: A method of operating a user equipment (UE) includes receiving first information for a physical cell identifier (PCI) different from a serving cell PCI; receiving second information for source or measurement reference signals (RSs) for the PCI; determining, based on one or more transmission configuration indicator (TCI) states, the first information, and the second information, a reception spatial domain filter for reception of at least one of downlink (DL) RSs and channels from the PCI; and measuring, based on the first information and the second information, the measurement RS. The method further includes determining, based on the measured measurement RSs, the first information, and the second information, a beam report and transmitting the beam report for the PCI on an uplink (UL) channel. A beam refers to a spatial property used to receive or transmit a source RS or a channel.
    Type: Grant
    Filed: September 1, 2023
    Date of Patent: May 6, 2025
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dalin Zhu, Md. Saifur Rahman, Emad N. Farag, Eko Onggosanusi
  • Publication number: 20250133574
    Abstract: Methods and apparatus for beam activation, indication, and application. A method includes receiving, in a TCI state activation/deactivation MAC CE command, L activated TCI codepoints and receiving a DCI with a TCI field having S TCI codepoints. Each of the L activated TCI codepoints is mapped to a first or second TCI state. The method further includes identifying, the L activated TCI codepoints that are mapped to the S TCI codepoints, applying the first TCI state and the second TCI state for transmission and reception, receiving, in a first DCI and a second DCI, a first indication of the first TCI state and a second indication of the first TCI state, respectively, and identifying, based on a time of reception of the first and second DCIs, the first or second indication of the first TCI state to use to update the first TCI state after a beam application time.
    Type: Application
    Filed: October 10, 2024
    Publication date: April 24, 2025
    Inventors: Dalin Zhu, Emad Nader Farag, Eko Onggosanusi
  • Publication number: 20250126615
    Abstract: Methods and apparatuses for user equipment (UE)-initiated operations. A method performed by a UE includes receiving first information related to a scheduling request (SR) for transmission of a beam report, receiving second information related to transmission of the beam report, and determining, based on the first information, a first uplink (UL) resource for transmitting the SR. The method further includes determining, based on at least the second information, a second UL resource for transmitting the beam report, transmitting, based on the first UL resource, the SR, and transmitting, based on the second UL resource, the beam report. The second information includes an indicator indicating that the second UL resource is dynamically scheduled or configured by radio resource control (RRC).
    Type: Application
    Filed: September 27, 2024
    Publication date: April 17, 2025
    Inventors: Dalin Zhu, Emad Nader Farag, Eko Onggosanusi
  • Patent number: 12273750
    Abstract: Methods and apparatuses for measuring and reporting channel parameters in a distributed antenna wireless communication system. A method for operating a user equipment (UE) includes receiving a configuration for reporting in a channel state information (CSI) report a channel offset for a target entity; measuring one or more measurement reference signals (RSs) for determining the channel offset; determining, based on the measured one or more measurement RSs, the channel offset for the target entity; and transmitting, at least based on the configuration, the CSI report including a channel offset report associated with the determined channel offset. The measurement RSs comprise channel state information reference signals (CSI-RSs), synchronization signal blocks (SSBs), or both CSI-RSs and SSBs.
    Type: Grant
    Filed: February 11, 2022
    Date of Patent: April 8, 2025
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dalin Zhu, Eko Onggosanusi, Md. Saifur Rahman, Emad N. Farag
  • Publication number: 20250113362
    Abstract: Methods and apparatuses for user equipment (UE)-initiated reporting. A method of operating a user equipment (UE) includes transmitting a first uplink (UL) signal, receiving, in response to the first UL signal, a first downlink (DL) signal indicating resources for a second DL signal, and a second UL signal, and receiving the second DL signal based on the indicated resources for the second DL signal. The method further includes measuring the second DL signal, determining a report based on the measurement, and transmitting the report based on the indicated resources for the second UL signal. The second UL signal is a physical UL shared channel (PUSCH) or a physical uplink control channel (PUCCH).
    Type: Application
    Filed: September 19, 2024
    Publication date: April 3, 2025
    Inventors: Emad Nader Farag, Dalin Zhu, Eko Onggosanusi, Md. Saifur Rahman, Gilwon Lee
  • Publication number: 20250106714
    Abstract: Methods and apparatuses for inter-cell beam management triggered cell switch. A method of operating a user equipment (UE) includes receiving first information for first sets of downlink (DL) or joint candidate cell transmission configuration indicator (TCI) states corresponding to one or more candidate cells, receiving second information for second sets of uplink (UL) candidate cell TCI states corresponding to the one or more candidate cells, receiving a first medium access control-channel element (MAC-CE) for activating a subset of candidate cell TCI states from the first or second sets, and receiving a second MAC CE including a cell switch command. The cell switch command indicates a candidate cell and at least one candidate cell TCI state from the first sets or the second sets corresponding to the candidate cell. The method further includes deactivating the subset of activated candidate cell TCI states excluding the at least one candidate cell TCI state.
    Type: Application
    Filed: September 13, 2024
    Publication date: March 27, 2025
    Inventors: Emad Nader Farag, Eko Onggosanusi, Dalin Zhu
  • Publication number: 20250096880
    Abstract: Methods and apparatuses for beam measurement and reporting. A method performed by a user equipment (UE) is provided. The method includes receiving first information related to inclusion in a report of at least one first report quantity associated with a first reference signal (RS) resource and receiving second information related to at least one second RS resource. The method further includes determining, based on the first RS resource, the at least one first report quantity and determining, based on the at least one second RS resource, at least one second report quantity. The method further includes determining, based on (i) the first information and (ii) the at least one second report quantity, the report and transmitting the report.
    Type: Application
    Filed: September 6, 2024
    Publication date: March 20, 2025
    Inventors: Dalin Zhu, Emad Nader Farag, Eko Onggosanusi
  • Publication number: 20250088333
    Abstract: Methods and apparatuses for group common beam indication. A method performed by a user equipment (UE) includes receiving a plurality of first transmission configuration indication (TCI) states in a group common downlink control information (DCI) and receiving first information related to a plurality of channel measurement resources (CMRs) for coherent-joint transmission (CJT). The method further includes determining, based on the plurality of first TCI states, at least one second TCI state; determining an association between the at least one second TCI state and the first information; and receiving, based on the association, the plurality of CMRs. The first information comprises at least a number of the plurality of CMRs and time-frequency domain resource configurations for the plurality of CMRs.
    Type: Application
    Filed: September 4, 2024
    Publication date: March 13, 2025
    Inventors: Dalin Zhu, Emad Nader Farag, Eko Onggosanusi
  • Patent number: 12244537
    Abstract: A method for operating a user equipment (UE) comprises receiving at least one channel state information (CSI) report setting about a first type of quantities CSI(1), . . . , CSI(NRRH) for NRRH>1 remote radio heads (RRHs), each RRH comprising a group of CSI reference signal (CSI-RS) ports, wherein NRRH=a number of RRHs; receiving at least one CSI-RS resource setting about a second type of quantities CSI-RS(1), . . . , CSI-RS(NRRH) transmitted from NRRH groups of CSI-RS ports, wherein at least one of the at least one CSI report setting or the at least one CSI-RS resource setting is not equal to NRRH; and based on the at least one CSI report setting and the at least one CSI-RS resource setting: measuring CSI-RS(1), . . . , CSI-RS(NRRH); and determining, based on the measurement, CSI(1), . . . , CSI(NRRH); and transmitting CSI(1), . . . , CSI(NRRH).
    Type: Grant
    Filed: February 16, 2022
    Date of Patent: March 4, 2025
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Md. Saifur Rahman, Eko Onggosanusi, Dalin Zhu
  • Patent number: 12245261
    Abstract: Methods and apparatuses for channel and interference measurement in a wireless communication system. A method for operating a user equipment (UE) includes receiving a reporting setting and receiving a resource setting associated with the reporting setting. The reporting setting is configured with a higher layer parameter reportQuantity that is set to at least cri-SINR. The resource setting is configured with a higher layer parameter resourceType that is set to aperiodic, periodic, or semi-persistent. The method further includes receiving a first set of reference signals (RSs) through a first set of RS resources; receiving a second set of RSs through a second set of RS resources; measuring at least one RS in the first or second sets of RSs; and determining, based on the reporting setting and the measured at least one RS, one or more layer-1 signal-to-noise and interference ratios (L1-SINRs).
    Type: Grant
    Filed: April 1, 2022
    Date of Patent: March 4, 2025
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dalin Zhu, Eko Onggosanusi
  • Publication number: 20250056560
    Abstract: Methods and apparatuses for frequency selective beam management. A method performed by a user equipment (UE) includes receiving first information related to a plurality of frequency subbands and receiving, in a first part of a downlink control information (DCI), at least one first transmission configuration indication (TCI) state and second information related to a second part of the DCI. The method further includes determining, based on the first information, a first association between the plurality of frequency subbands and the at least one first TCI state; for a first frequency subband from the plurality of frequency subbands, determining a first TCI state based on the first association; and identifying, based on the determined first TCI state, a spatial domain filter for transmitting or receiving UE-dedicated channels or signals for the first frequency subband.
    Type: Application
    Filed: July 24, 2024
    Publication date: February 13, 2025
    Inventors: Dalin Zhu, Emad Nader Farag, Eko Onggosanusi, Jianhua Mo, Young Han Nam
  • Patent number: 12224831
    Abstract: Methods and apparatuses for beam measurement and reporting in a wireless communication system. A method of operating a user equipment (UE) includes identifying an indication for reporting, in a channel state information (CSI) report, at least a first group of two resource indicators and corresponding beam metrics associated with a first entity identity (ID) and a second entity ID, respectively, and transmitting, in the CSI report, the first group of two resource indicators and the corresponding beam metrics. The first or second entity IDs correspond to at least one of: a physical cell identity (PCI) corresponding to a serving cell PCI or a PCI different from the serving cell PCI; and a PCI index pointing to a PCI corresponding to the serving cell PCI or a PCI different from the serving cell PCI in a list of PCIs that are higher layer configured to the UE.
    Type: Grant
    Filed: February 2, 2022
    Date of Patent: February 11, 2025
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dalin Zhu, Eko Onggosanusi
  • Publication number: 20250047329
    Abstract: Apparatuses and methods for dynamic MIMO operations. A method performed by a user equipment (UE) includes receiving information about N ports and a report; based on the information, determining ? port selection hypotheses, where a port selection hypothesis with index l selects a group of n1 ports from the N ports; and transmitting the report including at least one indicator indicating the ? port selection hypotheses, where ??1, l ?{1, . . . , ?}, and 1?nl?N.
    Type: Application
    Filed: July 16, 2024
    Publication date: February 6, 2025
    Inventors: Md. Saifur Rahman, Eko Onggosanusi, Gilwon Lee, Emad Nader Farag, Dalin Zhu
  • Publication number: 20250047362
    Abstract: Methods and apparatuses for signaling of inter-cell beam management in a wireless communication system. A method of operating a user equipment includes receiving configuration information for a list of transmission configuration indication (TCI) states; receiving an indication of activated TCI state code points via a medium access control-control element (MAC CE); and receiving a downlink control information (DCI) indicating an activated TCI state code point. The method further includes determining a TCI state to apply based on the activated TCI state code point; determining an entity of the TCI state and a source reference signal (RS) of the TCI state; updating spatial filters for downlink (DL) channels or uplink (UL) channels based on the source RS and entity; and receiving or transmitting the DL channels or the UL channels of the entity, respectively, based on the updated spatial filters.
    Type: Application
    Filed: October 21, 2024
    Publication date: February 6, 2025
    Inventors: Emad N. Farag, Eko Onggosanusi, Dalin Zhu
  • Publication number: 20250047357
    Abstract: Methods and apparatuses for indicating uplink (UL) beams and sounding reference signal (SRS) resources. A method performed by a user equipment (UE) includes receiving, in a downlink control information (DCI) format, (i) a SRS resource indicator (SRI) and (ii) a transmission configuration indication (TCI) codepoint mapped to one or more first TCI states and determining, based on the SRI, a SRS resource and a physical uplink shared channel (PUSCH) associated with the SRS resource. The method further includes determining, based on the one or more first TCI states, a spatial filter for transmitting the PUSCH; and transmitting the PUSCH using the determined spatial filter.
    Type: Application
    Filed: July 17, 2024
    Publication date: February 6, 2025
    Inventors: Dalin Zhu, Md. Saifur Rahman, Emad Nader Farag, Eko Onggosanusi
  • Publication number: 20250024294
    Abstract: Methods and apparatuses for user equipment (UE)-initiated beam management. A method performed by a UE includes receiving first information to enable UE-initiated beam operation, receiving second information related to a measurement reference signal (RS) for the UE-initiated beam operation, and measuring the measurement RS. The method further includes determining, based on the measurement, a report, transmitting a first uplink (UL) channel notifying transmission of the report, and transmitting a second UL channel including the report.
    Type: Application
    Filed: June 28, 2024
    Publication date: January 16, 2025
    Inventors: Dalin Zhu, Emad Nader Farag, Eko Onggosanusi
  • Publication number: 20250024296
    Abstract: Methods and apparatuses for advanced user equipment (UE) beam reporting in a wireless communication system. A method of operating a UE includes receiving a set of reference signals (RSs), measuring a first quantity based on a quality of a RS in the set of RSs, determining a second quantity based on a rate of change of the first quantity, preparing a report including N?1 entries, and transmitting the report.
    Type: Application
    Filed: July 2, 2024
    Publication date: January 16, 2025
    Inventors: Emad Nader Farag, Eko Onggosanusi, Md. Saifur Rahman, Dalin Zhu
  • Publication number: 20250023694
    Abstract: Methods and apparatuses for channel state information (CSI) resource configuration in a wireless communication system. A method for operating a user equipment includes receiving a first and second configurations for a first and second sets of reference signal (RS) resources, respectively, configured in a CSI resource setting, receiving a first set of RSs through the first set of RS resources, and receiving a second set of RSs through the second set of RS resources. The method further includes measuring at least one RS in the first or second sets of RSs, determining, based on the measured at least one RS, one or more resource indicators or one or more beam metrics, determining, based on the first or second configurations, a first CSI report or a second CSI report; and transmitting, in the first or second CSI reports, the one or more resource indicators or the one or more beam metrics.
    Type: Application
    Filed: August 5, 2024
    Publication date: January 16, 2025
    Inventors: Dalin Zhu, Eko Onggosanusi
  • Patent number: 12200641
    Abstract: Methods and apparatuses for beam measurement, reporting, and indication operations. A method for a user equipment includes receiving first configuration information for joint reporting, in a same reporting instance, of both one or more synchronization signal block resource indicators (SSBRIs) and channel state information reference signal resource indicators (CRIs); and receiving second configuration information for differential reference signal received power (RSRP) reporting of RSRP values for the one or more SSBRIs and CRIs, respectively. The method further includes determining, based on the first configuration information, the one or more SSBRIs and CRIs and determining, based on the second configuration information, the RSRP values for the one or more SSBRIs and CRIs, respectively.
    Type: Grant
    Filed: September 16, 2021
    Date of Patent: January 14, 2025
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dalin Zhu, Md. Saifur Rahman, Emad N. Farag, Eko Onggosanusi