Patents by Inventor WEIMIN DUAN

WEIMIN DUAN 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: 20230050521
    Abstract: Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) performs a plurality of positioning measurements of a plurality of positioning reference signals (PRS) transmitted by at least one network node, transmits a first physical layer message having a fixed payload size, wherein the first physical layer message includes at least an indication of a type, a number, or both of a first set of positioning measurements of the plurality of positioning measurements to be included in a second physical layer message having a variable payload size, and transmits the second physical layer message having the variable payload size, wherein the second physical layer message includes at least the first set of positioning measurements, and wherein the variable payload size of the second physical layer message is based at least on the type, the number, or both of the first set of positioning measurements.
    Type: Application
    Filed: December 21, 2020
    Publication date: February 16, 2023
    Inventors: Alexandros MANOLAKOS, Weimin DUAN, Sven FISCHER
  • Publication number: 20230041767
    Abstract: A user equipment (UE) operating in a discontinuous reception (DRX) mode may receive a wake-up signal indicating that the UE may skip the next ON duration of the DRX cycle, i.e., the UE is instructed to not wake up during a next ON time during the DRX cycle to monitor communication signals, such as data signals or control signals. The UE may be configured to receive downlink (DL) positioning reference signals (PRSs), e.g., during the next ON duration of the DRX cycle. The UE respond to the PRS configuration and the wake-up signal by remaining in DRX sleep mode and not receiving the PRS or transitioning to DRX ON mode to receive the PRS during which the UE may monitor or not monitor communication signals. The location server may receive indications of the wake-up signal configuration and status from a base station or the UE.
    Type: Application
    Filed: December 18, 2020
    Publication date: February 9, 2023
    Inventors: ALEXANDROS MANOLAKOS, Weimin DUAN, Wanshi CHEN, Krishna Kiran MUKKAVILLI, Tingfang JI, Naga BHUSHAN
  • Publication number: 20230040590
    Abstract: Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) receives, over a wireless communication network operating in accordance with a first radio access technology (RAT), a configuration to provide at least one positioning state information (PSI) report, the first RAT associated with at least one first positioning technology, the configuration associated with at least one second RAT, at least one second positioning technology, or both to be used to estimate a location of the UE, obtains at least a first set of positioning measurements using the at least one second RAT, the at least one second positioning technology, or both, and transmits the at least one PSI report on physical resources allocated for a physical uplink or sidelink channel of the first RAT, the at least one PSI report including at least the first set of positioning measurements.
    Type: Application
    Filed: December 21, 2020
    Publication date: February 9, 2023
    Inventors: Alexandros MANOLAKOS, Weimin DUAN, Krishna Kiran MUKKAVILLI
  • Patent number: 11576139
    Abstract: In an aspect, a communications node (e.g., TRP or UE) obtains (e.g., measures) timing group delays associated with different positioning procedures to determine time drift information, and reports the time drift information to an external entity for position estimation. In some designs, positioning procedures may comprise round trip time (RTT) measurements or uplink or downlink Difference Of Arrival (TDOA) measurements. In some designs, the time drift information indicates a drift rate function.
    Type: Grant
    Filed: April 30, 2021
    Date of Patent: February 7, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Alexandros Manolakos, Weimin Duan, Sony Akkarakaran
  • Publication number: 20230035261
    Abstract: Techniques for positioning a NR bandwidth-limited user equipment (UE) are provided. An example method of positioning performed by a bandwidth-limited UE includes transmitting a first timing measurement signal to at least one proximate premium UE, wherein the at least one proximate premium UE is capable of using more bandwidth than the bandwidth-limited UE, receiving a second timing measurement signal from the at least one proximate premium UE, and determining location information for the bandwidth-limited UE based at least on the first timing measurement signal and the second timing measurement signal.
    Type: Application
    Filed: December 21, 2020
    Publication date: February 2, 2023
    Inventors: Weimin DUAN, Alexandros MANOLAKOS, Huilin XU
  • Publication number: 20230030823
    Abstract: Methods, systems, and devices for wireless communications are described. In some examples, a UE may receive an indication of a set of sounding reference signal (SRS) parameters corresponding to a set of SRS resources for transmitting SRSs, where the set of SRS resources may refer to frequency, or time, or both. In some examples, the SRS parameters may include, among other examples, a frequency allocation, a frequency overlap parameter, a number of allocated symbols, a comb value, a cyclic shift, a comb offset, a frequency hopping parameter, a repetition parameter, a symbol grouping parameter, or any combination thereof. The UE may determine an SRS configuration for the one or more SRSs based on the set of SRS parameters and transmit the one or more SRSs based on the configuration. In some examples, the SRS configuration includes a configuration for SRS frequency hopping, or SRS repetition, or both.
    Type: Application
    Filed: February 13, 2020
    Publication date: February 2, 2023
    Inventors: Runxin WANG, Muhammad Sayed Khairy ABDELGHAFFAR, Yu ZHANG, Alexandros MANOLAKOS, Weimin DUAN
  • Publication number: 20230006789
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine downlink (DL) channel state information; and transmit a first sounding reference signal (SRS) and a second SRS, wherein the second SRS is precoded based at least in part on the DL channel state information. Numerous other aspects are provided.
    Type: Application
    Filed: February 1, 2020
    Publication date: January 5, 2023
    Inventors: Runxin WANG, Muhammad Sayed Khairy ABDELGHAFFAR, Yu ZHANG, Alexandros MANOLAKOS, Weimin DUAN
  • Publication number: 20230006790
    Abstract: A method of selectively transmitting a positioning signal from a TRP includes: transmitting, unmuted, a first intra-slot positioning signal resource segment in a first slot of a transmission schedule in accordance with a muting configuration, the transmission schedule indicating which one or more resource elements to sound for transmitting at least a portion of the positioning signal, the muting configuration indicating whether to mute intra-slot positioning signal resource segments; and muting transmission by the TRP of a second intra-slot positioning signal resource segment in the first slot of the transmission schedule in accordance with the muting configuration.
    Type: Application
    Filed: December 17, 2020
    Publication date: January 5, 2023
    Inventors: Alexandros MANOLAKOS, Weimin DUAN, Krishna Kiran MUKKAVILLI
  • Patent number: 11539415
    Abstract: Methods, systems, and devices for wireless communications are described. A communication device, which may be otherwise known as a user equipment (UE), may determine a capability relating to an antenna configuration associated with channel state information reporting. The UE may transmit a message including an indication of the capability, and receive a channel state information reference signal using the antenna configuration. The UE may transmit, based on the channel state information reference signal, a channel state information report in accordance with the antenna configuration associated with the channel state information reporting.
    Type: Grant
    Filed: October 7, 2020
    Date of Patent: December 27, 2022
    Assignee: QUALCOMM Incorporated
    Inventors: Muhammad Sayed Khairy Abdelghaffar, Alexandros Manolakos, Weimin Duan, Peter Pui Lok Ang
  • Publication number: 20220407667
    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may be configured to estimate a signal-to-noise ratio for each antenna port associated with a reception of one or more tracking reference signals. The UE may receive one or more of multiple single-port tracking reference signals, a single multi-port tracking reference signal, or a tracking reference signal associated with multiple power ratios. The UE may be able to estimate a channel upon receiving a demodulation reference signal. The channel estimation may be based on the reception of one or more of multiple single-port tracking reference signals, the single multi-port tracking reference signal, or the tracking reference signal associated with multiple power ratios. The UE may communicate with the base station based on estimating the channel.
    Type: Application
    Filed: June 27, 2022
    Publication date: December 22, 2022
    Inventors: Weimin Duan, Alexandros Manolakos, Muhammad Sayed Khairy Abdelghaffar, Joseph Binamira Soriaga
  • Publication number: 20220407581
    Abstract: Aspects relate to measuring downlink beam quality in the presence of self-interference when operating in a full duplex mode configured for concurrent transmission and reception within an overlapping bandwidth. A user equipment (UE) may communicate with a base station over one or more of a plurality of uplink beams and downlink beams. For each uplink beam, the UE may obtain beam quality measurements associated with each of the downlink beams to identify a set of usable downlink beams. The UE may further transmit a report to the base station indicating the set of usable downlink beams for at least one uplink beam.
    Type: Application
    Filed: November 25, 2020
    Publication date: December 22, 2022
    Inventors: Huilin XU, Alexandros MANOLAKOS, Weimin DUAN, June NAMGOONG, Muhammad Sayed Khairy ABDELGHAFFAR
  • Patent number: 11533700
    Abstract: Wireless positioning accuracy of a user equipment (UE) is impacted by locations of the transmit/receive points (TRPs) and UE for wireless positioning. To improve the accuracy of estimated locations, a geometric dilution of precision (GDOP) may be determined for different groups of candidate TRPs, with the GDOP indicating a potential positioning error associated with the group of candidate TRPs. A UE may determine GDOPs for different combinations of candidate TRPs. One or more devices of a wireless network (e.g., a location server and/or a UE for positioning) may select or exclude one or more candidate TRPs from being used for wireless positioning of a UE based on the determined GDOPs. Exclusion or selection of candidate TRPs for wireless positioning may also be based on quality measurements of PRSs (such as an RSRP or SNR) or a time duration associated with measuring the PRSs from the candidate TRPs to be selected.
    Type: Grant
    Filed: March 31, 2021
    Date of Patent: December 20, 2022
    Assignee: QUALCOMM Incorporated
    Inventors: Weimin Duan, Alexandros Manolakos, Hung Dinh Ly
  • Publication number: 20220397632
    Abstract: Techniques for positioning a bandwidth-limited user equipment (UE) are provided. An example method of positioning performed by a bandwidth-limited UE according to the disclosure includes receiving a first timing measurement signal from at least one proximate UE, wherein the at least one proximate UE is capable of using more bandwidth than the bandwidth-limited UE, and transmitting a second timing measurement signal to the at least one proximate user equipment.
    Type: Application
    Filed: November 13, 2020
    Publication date: December 15, 2022
    Inventors: Weimin DUAN, Alexandros MANOLAKOS, Huilin XU
  • Publication number: 20220373634
    Abstract: During positioning of a user equipment (UE), downlink (DL) positioning reference signals (PRS) transmitted by one or more transmission reception point (TRP) in a wireless communication system may be preempted or punctured by higher priority transmissions, such as ultra-reliable low-latency traffic (URLLC). A PRS preemption indication (PI) may be provided to a UE by a serving TRP identifying one or more TRPs affected by preemption. The PRS PI may further identify the time domain and frequency domain of the preempted DL PRS transmissions. The PRS PI may identify the time domain, e.g., based on a number of PRS symbols between two monitoring occasions, wherein only PRS symbols that contain downlink positioning reference signals associated with the group of TRPs are counted. The PRS PI may identify the frequency domain by identifying at least one of four or more frequency sub-bands of the preempted DL PRS transmissions.
    Type: Application
    Filed: November 4, 2020
    Publication date: November 24, 2022
    Inventors: Alexandros MANOLAKOS, Weimin DUAN, Gokul SRIDHARAN, Wanshi CHEN
  • Patent number: 11509383
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive scheduling information that schedules a physical downlink shared channel (PDSCH) communication for the UE; and select a downlink beam for reception of the PDSCH communication from a set of usable downlink beams associated with an uplink beam to be used by the UE for uplink transmission in one or more symbols in which the PDSCH communication is scheduled. Numerous other aspects are provided.
    Type: Grant
    Filed: May 18, 2020
    Date of Patent: November 22, 2022
    Assignee: QUALCOMM Incorporated
    Inventors: Huilin Xu, Alexandros Manolakos, Weimin Duan, June Namgoong, Muhammad Sayed Khairy Abdelghaffar
  • Publication number: 20220353718
    Abstract: In an aspect, a wireless node (e.g., UE, gNB) performs a partial measurement of a measurement type (e.g., RSTD, Rx-Tx, etc.) of a reference signal for positioning (RS-P) resource (e.g., PRS, SRS) that includes multiple symbols, the partial measurement being measured across a subset of the multiple symbols. The wireless node transmits a measurement report that includes an indication of the first partial measurement. The communications device receives the measurement report, and determines whether a spoofing attack is associated with the RS-P based at least in part upon the measurement report.
    Type: Application
    Filed: April 28, 2021
    Publication date: November 3, 2022
    Inventors: Weimin DUAN, Alexandros MANOLAKOS, Jing LEI
  • Patent number: 11469796
    Abstract: A user equipment (UE) receives a maximum downlink (DL) Multiple-Input Multiple-Output (MIMO) layer configuration for DL communications, such as control signals or data signals, in one or more bandwidth parts (BWPs) and a positioning reference signal (PRS) configuration for receiving DL PRS. The UE receives DL PRS in an active BWP using a number of reception antennas based on, e.g., at least equal to, the maximum number of DL MIMO layers in the active bandwidth part. The UE may be configured to transmit uplink (UL) PRS, e.g., SRS for positioning purposes, using at least a maximum number of transmission antennas that is configured for communications purposes.
    Type: Grant
    Filed: August 18, 2020
    Date of Patent: October 11, 2022
    Assignee: QUALCOMM Incorporated
    Inventors: Alexandros Manolakos, Weimin Duan, Krishna Kiran Mukkavilli
  • Publication number: 20220322277
    Abstract: Wireless positioning accuracy of a user equipment (UE) is impacted by locations of the transmit/receive points (TRPs) and UE for wireless positioning. To improve the accuracy of estimated locations, a geometric dilution of precision (GDOP) may be determined for different groups of candidate TRPs, with the GDOP indicating a potential positioning error associated with the group of candidate TRPs. A UE may determine GDOPs for different combinations of candidate TRPs. One or more devices of a wireless network (e.g., a location server and/or a UE for positioning) may select or exclude one or more candidate TRPs from being used for wireless positioning of a UE based on the determined GDOPs. Exclusion or selection of candidate TRPs for wireless positioning may also be based on quality measurements of PRSs (such as an RSRP or SNR) or a time duration associated with measuring the PRSs from the candidate TRPs to be selected.
    Type: Application
    Filed: March 31, 2021
    Publication date: October 6, 2022
    Inventors: Weimin DUAN, Alexandros MANOLAKOS, Hung Dinh Ly
  • Publication number: 20220317230
    Abstract: Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) measures one or more positioning reference signal (PRS) resources of at least one PRS instance, and processes the one or more PRS resources of the at least one PRS instance during a PRS processing gap, wherein the PRS processing gap comprises a period of time during which the UE prioritizes PRS processing over reception, processing, or both of other downlink signals and channels.
    Type: Application
    Filed: March 9, 2022
    Publication date: October 6, 2022
    Inventors: Alexandros MANOLAKOS, Weimin DUAN, Sven FISCHER, Krishna Kiran MUKKAVILLI
  • Publication number: 20220312153
    Abstract: Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) transmits a first signal for positioning (RS-P) (e.g., SRS, etc.) on a first link from the UE to a wireless network node (e.g., BS, UE, etc.). The UE receives, from the wireless network node, location assistance data that comprises information that indicates a line of sight (LOS) condition associated with the first link. The UE measures a second RS-P on a second link from the wireless network node to the UE that is reciprocal to the first link. The UE performs one or more positioning measurements, determines a location estimate of the UE, or both, based in part on the reception of the second RS-P on the second link and the indicated LOS condition, the indicated LOS condition associated with the second link based on link reciprocity between the first and second links.
    Type: Application
    Filed: May 24, 2022
    Publication date: September 29, 2022
    Inventors: Alexandros MANOLAKOS, Jay Kumar SUNDARARAJAN, Weimin DUAN