Patents by Inventor Alexandros Manolakos

Alexandros Manolakos 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).

  • LOCATION ASSISTANCE DATA WITH LINE OF SIGHT CONDITION FOR A LINK BETWEEN A USER EQUIPMENT AND A WIRELESS NETWORK NODE
    Publication number: 20240007828
    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: September 14, 2023
    Publication date: January 4, 2024
    Inventors: Alexandros MANOLAKOS, Jay Kumar SUNDARARAJAN, Weimin DUAN
  • OBTAINING A LOCATION OF A REFERENCE USER EQUIPMENT FOR LOCATION DETERMINATION OF ONE OR MORE OTHER USER EQUIPMENTS
    Publication number: 20240004058
    Abstract: In an aspect, a location of a reference UE is obtained (e.g., iteratively). A first differential RTT measurement is determined based on RTTs between a target UE and each of first and second wireless nodes, and a second differential RTT measurement is determined based on RTTs between a reference UE and each of the first and second wireless nodes. A positioning estimate of the target UE is determined based on the first and second differential RTT measurements and the obtained reference UE location (e.g., a most recent of the iteratively obtained reference UE locations). In another aspect, a primary reference UE among a plurality of reference UEs is selected, and its location is obtained (e.g., iteratively). A location of other reference UE(s) is determined based at least in part upon the obtained primary reference UE location (e.g., a most recent of the iteratively obtained primary reference UE locations).
    Type: Application
    Filed: December 22, 2021
    Publication date: January 4, 2024
    Inventors: Weimin DUAN, Wanshi CHEN, Alexandros MANOLAKOS
  • RADIO FREQUENCY (RF) SENSING USING A SHARED PHYSICAL CHANNEL
    Publication number: 20240007236
    Abstract: A shared physical channel can be used for passive radio frequency (RF) sensing of an object in a wireless communication network. Embodiments can comprise methods, devices, systems, and/or other means for receiving the shared physical channel, where the shared physical channel is received via RF signals transmitted by a transmitting device and reflected to the receiving device from the object. Data of the shared physical channel can be decoded based on a demodulation reference signal (DMRS) of the shared physical channel. Subsequent to decoding, modulation symbols used to transmit the shared physical channel and DMRS can be reconstructed. One or more RF sensing measurements of the object can be made using the reconstructed modulation symbols.
    Type: Application
    Filed: January 31, 2022
    Publication date: January 4, 2024
    Inventors: Alexandros MANOLAKOS, Weimin DUAN
  • APPARATUSES AND METHODS FOR PER BEAM TIMING FOR POSITIONING
    Publication number: 20240007883
    Abstract: Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) maintains timing information for each of a plurality of beam pairs, each beam pair comprising a downlink (DL) beam pair, comprising a base station transmit beam and a UE receive beam or a sidelink (SL) beam pair, comprising a UE transmit beam and a UE receive beam. The UE measures a first reference signal using a first beam pair from the plurality of beam pairs, measures a second reference signal using a second beam pair from the plurality of beam pairs, and reports, to a transmitting entity, beam timings for the first beam pair and the second beam pair. The measuring steps, the reporting step, or both, are performed according to the timing information for the first beam pair and the second beam pair.
    Type: Application
    Filed: January 13, 2022
    Publication date: January 4, 2024
    Inventors: Srinivas YERRAMALLI, Alexandros MANOLAKOS, Mukesh KUMAR, Marwen ZORGUI
  • Location assistance data with line of sight condition for a link between a user equipment and a wireless network node
    Patent number: 11864060
    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: Grant
    Filed: May 24, 2022
    Date of Patent: January 2, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Alexandros Manolakos, Jay Kumar Sundararajan, Weimin Duan
  • Quasi-colocation indication for non-zero power channel state information reference signal port groups
    Patent number: 11863268
    Abstract: A method generally includes determining channel state information reference signal (CSI-RS) port groups associated with one or more non-zero power (NZP) CSI-RS resources for channel measurement (CM) or interference measurement (IM)(902); transmitting an indication of the CSI-RS port groups to at least om UE(904); generating quasi-colocation (QCL) information indicating QCL assumptions for the CSI-RS port groups(906); and transmitting the QCL information to the at least one UE(908).
    Type: Grant
    Filed: August 10, 2018
    Date of Patent: January 2, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Chenxi Hao, Yu Zhang, Alexandros Manolakos, Chao Wei, Hao Xu, Wanshi Chen, Peter Gaal
  • UE-TO-UE POSITIONING
    Publication number: 20230422200
    Abstract: A method for using a first UE as an anchor point includes: sending, from the first UE to a network entity, a positioning capability message indicating that the first UE is capable of transferring a PRS between the first UE and a second UE; where the method further includes: sending, from the first UE to the second UE, a first PRS; or measuring, at the first UE, a second PRS received from the second UE; or a combination thereof.
    Type: Application
    Filed: December 3, 2021
    Publication date: December 28, 2023
    Inventors: Jingchao BAO, Sony AKKARAKARAN, Alexandros MANOLAKOS, Tao LUO
  • FACILITATING TIME-ALIGNED MEASUREMENTS FOR USER EQUIPMENTS (UES) AND BASE STATIONS FOR POSITIONING
    Publication number: 20230422202
    Abstract: Disclosed are techniques for communication. In an aspect, a location server transmits a first request to at least a first network node, the first request including at least a first set of parameters indicating one or more first time instances during which the first network node is expected to perform and report one or more first positioning measurements of periodic positioning reference signals transmitted by a second network node during a plurality of periodic time instances, the plurality of periodic time instances including the one or more first time instances, and receives a first measurement report from the first network node, the first measurement report including the one or more first positioning measurements of the periodic positioning reference signals transmitted by the second network node during the one or more first time instances.
    Type: Application
    Filed: December 9, 2021
    Publication date: December 28, 2023
    Inventors: Alexandros MANOLAKOS, Mukesh KUMAR, Sony AKKARAKARAN, Guttorm Ringstad OPSHAUG, Sven FISCHER, Stephen William EDGE
  • TRANSMIT POWER CONTROL FOR POSITIONING USING NON-SERVING CELLS
    Publication number: 20230422181
    Abstract: Methods, systems, and devices for transmit power control for positioning using non-serving cells are described. A user equipment (UE) may determine that an uplink reference signal may be associated with a positioning procedure. In some cases, the positioning procedure may include transmission, by the UE, of the reference signal to a non-serving cell, which may be farther away from the UE than a serving cell. The UE may determine an absence of a parameter associated with a transmit power for transmitting the reference signal. Based on the absence, the UE may determine the transmit power based on parameters received from a serving cell, based on configuration information, based on a message intercepted from the cell other than the serving cell, or based on other considerations or information.
    Type: Application
    Filed: September 6, 2023
    Publication date: December 28, 2023
    Inventors: Alexandros MANOLAKOS, Sony AKKARAKARAN, Guttorm Ringstad OPSHAUG, Sven FISCHER
  • SOUNDING REFERENCE SIGNALS FOR POSITIONING
    Publication number: 20230421422
    Abstract: Sounding reference signals (SRS) transmitted by a UE, e.g., for positioning or channel estimation, may be configured for one or both of frequency tone level cyclic shift and symbol level code, which, for example, enables multiplexing a greater number of UEs. The frequency tone level cyclic shift is produced by jointly processing a number of symbols with an extended cyclic shift structure. The SRS may be configured using a symbol group level that indicates the number of symbols associated with a cyclic shift structure, and an outer code that indicates a multiplier applied to the SRS at the symbol level, which increases the multiplexing opportunities. The symbol level code may further indicate an extended cyclic shift indicating a linear increase in phase rotation across tones in symbols associated with the symbol group level.
    Type: Application
    Filed: September 5, 2023
    Publication date: December 28, 2023
    Inventors: Seyong PARK, Alexandros MANOLAKOS, Weimin DUAN, Jay Kumar SUNDARARAJAN, Wanshi CHEN, Krishna Kiran MUKKAVILLI, Tingfang JI, Naga BHUSHAN
  • TECHNIQUES FOR PATH INFORMATION-BASED PHYSICAL LAYER SECURITY
    Publication number: 20230422027
    Abstract: Aspects described herein relate to transmitting and/or receiving devices securing or authenticating communications at a physical layer based on generated or received path information.
    Type: Application
    Filed: June 27, 2022
    Publication date: December 28, 2023
    Inventors: Ahmed ELSHAFIE, Hung Dinh Ly, Alexandros Manolakos
  • FFT WINDOW ADJUSTMENT BASED ON PRS PEAK PROCESSING
    Publication number: 20230422190
    Abstract: A user equipment (UE) associated with a wireless network determines a first reference signal time difference value. The UE determines a first RSTD estimate and a first RSTD uncertainty associated with the first RSTD value, identifies a search interval for the first RSTD value, the search interval extending from a difference between the first RSTD estimate and the first RSTD uncertainty to a sum of the first RSTD estimate and the first RSTD uncertainty, receives wireless signals during the identified search interval, determines a Fast Fourier Transform (FFT) window offset for decoding a first positioning reference signal (PRS) received during the identified search interval, and determines the first RSTD value based at least in part on the determined FFT window offset.
    Type: Application
    Filed: December 13, 2021
    Publication date: December 28, 2023
    Inventors: Mukesh KUMAR, Alexandros MANOLAKOS, Guttorm Ringstad OPSHAUG, Srinivas YERRAMALLI, Fnu SIDDHANT, Pulkit RAJGADIYA
  • POWER DELAY PROFILE (PDP) SIMILARITY MEASUREMENT AND REPORTING
    Publication number: 20230422072
    Abstract: Disclosed are techniques for wireless communication. In an aspect, a receiver device receives, from a network entity, a request to report a power delay profile (PDP) similarity metric for a first positioning frequency layer on a first component carrier and a second positioning frequency layer on a second component carrier; determines a first PDP for a first reference signal received on the first positioning frequency layer and a second PDP for a second reference signal received on the second positioning frequency layer; determines the PDP similarity metric based on the first PDP and the second PDP; and transmits, to the network entity, the PDP similarity metric.
    Type: Application
    Filed: October 27, 2021
    Publication date: December 28, 2023
    Inventors: Srinivas YERRAMALLI, Alexandros MANOLAKOS, Mukesh KUMAR, Xiaoxia ZHANG, Rajat PRAKASH, Mohammad Tarek FAHIM
  • Inter-frequency sounding reference signal for positioning during a measurement period
    Patent number: 11856591
    Abstract: In an aspect, a BS transmits PRS on a first frequency-domain resource during a measurement period. A UE measures the PRS, and transmits a RS-P (e.g., SRS-P) on a second frequency-domain resource that does not overlap with the first frequency-domain resource in frequency.
    Type: Grant
    Filed: June 14, 2021
    Date of Patent: December 26, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Alexandros Manolakos, Mukesh Kumar, Srinivas Yerramalli
  • COHERENT UPLINK (UL) MULTIPLE-INPUT MULTIPLE-OUTPUT (MIMO)
    Publication number: 20230413037
    Abstract: A method for wireless communication by a user equipment (UE) includes transmitting, to a base station, an uplink capability message indicating a coherent uplink multiple-in-multiple-out (MIMO) capability associated with coherent transmission characteristics. The method also includes receiving, from the base station, a switch parameter that configures the UE for a transmission chain switch. The method further includes receiving, from the base station, a switching message that triggers the transmission chain switch between a reference signal (RS) transmission and a scheduled data communication. The method still further includes transmitting the data communication according to one or more non-coherent transmission characteristics based on the transmission chain switch being triggered between the RS transmission and the scheduled data communication.
    Type: Application
    Filed: September 20, 2021
    Publication date: December 21, 2023
    Inventors: Alexandros MANOLAKOS, Alberto RICO ALVARINO, Timo Ville VINTOLA
  • RECONFIGURABLE INTELLIGENT SURFACE (RIS)-AIDED UE PASSIVE RF SENSING
    Publication number: 20230408677
    Abstract: Techniques are disclosed for determining an object's location by using a Reconfigurable Intelligent Surface (RIS) to aid in RF sensing. Radar techniques can be used in which one or more base stations act as a transmitter and a receiving device acts as a receiver in a bistatic or multi-static radar configuration where an RIS directs signals transmitted by the one or more base stations to the receiving device. By comparing the time a line-of-sight (LOS) signal (redirected to the receiving device by the RIS) is received by the receiving device with that of an echo signal (redirected to the receiving device by the RIS) from a reflection of an RF signal from the object, a position of the object can be determined. Depending on desired functionality, this position can be determined by the receiving device or by a location server or other network entity.
    Type: Application
    Filed: December 21, 2021
    Publication date: December 21, 2023
    Inventors: Weimin DUAN, Alexandros MANOLAKOS, Seyong PARK
  • REPORTING STITCHING PRS PHASE ERRORS
    Publication number: 20230408627
    Abstract: Disclosed are techniques for wireless communication. In an aspect, a first network node receives transmitter phase information from a second network node, the transmitter phase information including one or more parameters representing phase of a plurality of positioning reference signals (PRS) transmitted by at least one network node on a plurality of frequency intervals, and obtains positioning measurements of the plurality of PRS transmitted by the at least one network node based on the one or more parameters representing the phase of the plurality of PRS to enable a location of a user equipment (UE) to be determined based on at least the positioning measurements of the plurality of PRS.
    Type: Application
    Filed: December 6, 2021
    Publication date: December 21, 2023
    Inventors: Jingchao BAO, Sony AKKARAKARAN, Tao LUO, Alexandros MANOLAKOS, Juan MONTOJO
  • SYSTEMS AND METHODS FOR STORAGE OF UE POSITIONING CAPABILITIES IN A NETWORK
    Publication number: 20230408625
    Abstract: The positioning capabilities of a User Equipment (UE) are stored in a core network to reduce positioning latency when the UE indicates that its positioning capabilities are stable and/or are long term valid. The UE may provide its positioning capabilities to a location server during a location session along with an indication of whether the positioning capabilities are stable. The location server may enable storage of the positioning capabilities for the UE in the core network, e.g., in the location server or another entity in the core network such as Access and Mobility Management Function (AMF), if there is an indication that the positioning capabilities are stable. The AMF may include a UE identifier in location requests with which the location server may retrieve the UE positioning capabilities if stored at the location server or may include the UE positioning capabilities if stored at the AMF.
    Type: Application
    Filed: August 31, 2023
    Publication date: December 21, 2023
    Inventors: Stephen William EDGE, Sven FISCHER, Alexandros MANOLAKOS, Sony AKKARAKARAN, Guttorm Ringstad OPSHAUG, Hong CHENG
  • REPORTING UE UL TX TIMING QUALITY FOR UL OR DL-UL BASED POSITION METHODS FOR NR POSITIONING
    Publication number: 20230413226
    Abstract: Techniques described herein provide for a mobile device communicating a timing quality metric related to an uplink (UL) signal for UL and/or downlink-uplink (DL-UL) positioning techniques. The timing quality metric can be indicative of an accuracy of the transmission timing of one or more reference signals (e.g., in relation to a downlink (DL) signal or other UL reference signal) and may be communicated using an indexed and/or enumerated value. This information can be included as an information element (IE) in a report provided by the mobile device to a receiving network entity or location server.
    Type: Application
    Filed: December 27, 2021
    Publication date: December 21, 2023
    Inventors: Alexandros MANOLAKOS, Mukesh KUMAR, Srinivas YERRAMALLI
  • Using medium access control control elements to schedule semi-persistent sounding reference signals for positioning
    Patent number: 11848880
    Abstract: Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) receives, from a serving base station, a medium access control control element (MAC-CE) indicating activation or deactivation of a semi-persistent (SP) sounding reference signal (SRS)-for-positioning, wherein a reserved bit in the MAC-CE or a logical channel identifier (LCID) of a MAC subheader of the MAC-CE indicates the activation or deactivation of the SP SRS-for-positioning, and transmits the SP SRS-for-positioning on one or more SRS resources configured for the UE, the SP SRS-for-positioning having transmission parameters adopted from a spatial relation reference signal for the SP SRS-for-positioning.
    Type: Grant
    Filed: February 1, 2021
    Date of Patent: December 19, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Alexandros Manolakos, Sony Akkarakaran, Sven Fischer