Patents by Inventor Yih-Hao Lin

Yih-Hao Lin 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: 20210389410
    Abstract: Techniques are provide for passive positioning of user equipment (UE) with analog beamforming. An example method for positioning a user equipment includes receiving a first positioning reference signal from a first base station at a first time, receiving a first timing difference value based on two or more positioning reference signals transmitted from the first base station, receiving a second positioning reference signal from a second base station at a second time, receiving a second timing difference value based on two or more positioning reference signals transmitted from the second base station, and determining a time difference of arrival between the first positioning reference signal and the second positioning reference signal based at least in part on the first timing difference value and the second timing difference value.
    Type: Application
    Filed: May 4, 2021
    Publication date: December 16, 2021
    Inventors: Srinivas YERRAMALLI, Xiaoxia ZHANG, Taesang YOO, Alexandros MANOLAKOS, Lorenzo FERRARI, Yih-Hao LIN, Rajat PRAKASH, Jing SUN
  • Publication number: 20210385624
    Abstract: Disclosed are techniques for wireless communication. In an aspect, a network node receives a reference signal comprising a plurality of time and frequency resources, the plurality of time and frequency resources spanning a plurality of disjoint bandwidth segments, the plurality of disjoint bandwidth segments being time aligned or having a known time offset with respect to each other, and determines a time of arrival (ToA) of the reference signal based on jointly processing the plurality of time and frequency resources of the reference signal across the plurality of disjoint bandwidth segments.
    Type: Application
    Filed: June 4, 2021
    Publication date: December 9, 2021
    Inventors: Yih-Hao LIN, Xiaoxia ZHANG, Lorenzo FERRARI, Taesang YOO, Srinivas YERRAMALLI, Alexandros MANOLAKOS, Sony AKKARAKARAN, Jingchao BAO
  • Publication number: 20210377698
    Abstract: Methods, systems, computer-readable media, and apparatuses are described for reporting, in support of positioning a UE, information about consistencies of positioning reference signal (PRS) measurements, PRS resources, PRS resource sets, or transmission and reception points (TRPs). In some embodiments, a UE receives PRS resources from TRPs and performs PRS measurements based on the PRS resources. The UE determines whether certain PRS measurements, PRS resources, PRS resource sets, or TRPs contribute to a consistent position estimate and/or consistent positioning measurements. The UE reports to a device, such as to a location server, information about consistent groups, where each consistent group identifies a set of such consistent elements.
    Type: Application
    Filed: May 26, 2021
    Publication date: December 2, 2021
    Inventors: Alexandros MANOLAKOS, Jingchao BAO, Lorenzo FERRARI, Yih-Hao LIN, Sony AKKARAKARAN
  • Publication number: 20210368297
    Abstract: A example method of determining a positioning signal measurement includes: sending, from a user equipment to a network entity, a processing-capability message indicating a processing capability of the user equipment for processing an aggregated positioning reference signal, where the processing-capability message corresponds to one or more assistance-data types; obtaining, at the user equipment, the aggregated positioning reference signal; and processing, at the user equipment, the aggregated positioning reference signal based on assistance data to determine the positioning signal measurement, the assistance data including the one or more assistance-data types.
    Type: Application
    Filed: May 18, 2021
    Publication date: November 25, 2021
    Inventors: Yih-Hao LIN, Alexandros MANOLAKOS, Lorenzo FERRARI, Xiaoxia ZHANG, Taesang YOO
  • Publication number: 20210368538
    Abstract: In an embodiment, a serving BS of a UE may transmit a PDCCH communication to the UE. The PDCCH communication triggers a partial RACH procedure, whereby a RACH transmission is performed. In some designs, the RACH transmission is for positioning, and positioning measurements are performed at the serving BS and (optionally) at one or more non-serving BSs. In some designs, measurement data based on the positioning measurements are conveyed to a position estimation entity (e.g., LMF), which performs a positioning estimate of the UE.
    Type: Application
    Filed: May 13, 2021
    Publication date: November 25, 2021
    Inventors: Srinivas YERRAMALLI, Alexandros MANOLAKOS, Sony AKKARAKARAN, Lorenzo FERRARI, Yih-Hao LIN
  • Publication number: 20210314195
    Abstract: Sounding Reference Signal (SRS) transmission for positioning can be utilized on flexible symbols. Techniques disclosed for transmitting a reference signal for positioning comprise receiving, from a serving base station, a message comprising an indication to transmit a SRS on a set of symbols of an orthogonal frequency division multiplexing (OFDM) slot. Techniques may also comprise determining the SRS is to be used for positioning, and receiving, from the serving base station, downlink control information (DCI) having a slot format indicator (SFI) that designates a subset of the set of symbols as flexible. Techniques may also comprise transmitting the SRS on at least a portion of the subset.
    Type: Application
    Filed: February 17, 2021
    Publication date: October 7, 2021
    Inventors: Yih-Hao LIN, Xiaoxia ZHANG, Alexandros MANOLAKOS, Sony AKKARAKARAN
  • Publication number: 20210307002
    Abstract: Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) receives, from a serving cell, an uplink positioning reference signal (UL-PRS) resource configuration, the UL-PRS resource configuration comprising a plurality of N resource elements (REs) staggered in frequency across a plurality of M consecutive symbols of a resource block (RB) such that the plurality of N REs spans a plurality of N consecutive subcarriers of the RB, receives, from the serving cell, an indication of a PRS symbol cancelation group to be used for uplink cancelation, the PRS symbol cancelation group identifying a set of the plurality of M consecutive symbols that is expected to be canceled for uplink transmission, and cancels transmission of UL-PRS on one or more of the set of L symbols identified by the PRS symbol cancelation group.
    Type: Application
    Filed: March 24, 2021
    Publication date: September 30, 2021
    Inventors: Sony AKKARAKARAN, Alexandros MANOLAKOS, Jingchao BAO, Yih-Hao LIN, Xiaoxia ZHANG
  • Patent number: 10992402
    Abstract: Techniques for clock synchronization over a wireless connection are provided. A first wireless node determines an offset between a first clock used by the first wireless node for a wired connection between the first wireless node and at least one upstream node and a second clock used by the first wireless node for a wireless connection between the first wireless node and a second wireless node on the downstream. The first wireless node transmits an indication of the determined offset to the second wireless node for use by the second wireless node to calibrate a third clock corresponding to the first clock to synchronize the third clock with the first clock, wherein the third clock is used by the second wireless node for a second wired connection with at least one downstream node.
    Type: Grant
    Filed: October 10, 2019
    Date of Patent: April 27, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Yih-Hao Lin, Peerapol Tinnakornsrisuphap, Rajat Prakash
  • Publication number: 20200119825
    Abstract: Techniques for clock synchronization over a wireless connection are provided. A first wireless node determines an offset between a first clock used by the first wireless node for a wired connection between the first wireless node and at least one upstream node and a second clock used by the first wireless node for a wireless connection between the first wireless node and a second wireless node on the downstream. The first wireless node transmits an indication of the determined offset to the second wireless node for use by the second wireless node to calibrate a third clock corresponding to the first clock to synchronize the third clock with the first clock, wherein the third clock is used by the second wireless node for a second wired connection with at least one downstream node.
    Type: Application
    Filed: October 10, 2019
    Publication date: April 16, 2020
    Inventors: Yih-Hao LIN, Peerapol TINNAKORNSRISUPHAP, Rajat PRAKASH
  • Publication number: 20170329351
    Abstract: The disclosure provides various methods and apparatus useful for mapping wireless nodes using a drone and aligning the body of the drone with an antenna of the wireless node. A method includes mapping, by an apparatus, a space including one or more locations of one or more wireless nodes, determining whether the apparatus is in proximity to a first wireless node of the one or more wireless nodes, determining an orientation of an antenna of the first wireless node, and in response to determining that the apparatus is in proximity to the first wireless node and determining the orientation of the antenna of the first wireless node, adjusting a six-degree-of-freedom (6DoF) orientation of the apparatus based on the determined orientation of the antenna of the first wireless node. The apparatus may be an autonomous drone.
    Type: Application
    Filed: May 12, 2017
    Publication date: November 16, 2017
    Inventors: Edwin Chongwoo Park, Yih-Hao Lin, Samir Soliman, Bala Ramasamy
  • Patent number: 9628935
    Abstract: The disclosure is directed to group communications in a mixed casting services wireless communication system. An embodiment detects a loss of multicast coverage at a user equipment (UE), notifies a server of the loss of multicast coverage, wherein the server is configured to provide a desired multicast communication, and requests that communications related to the desired multicast communication be conducted on a unicast service using application layer signaling independent of link layer signaling.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: April 18, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Kirankumar Anchan, Yih-Hao Lin, Arvind V. Santhanam
  • Patent number: 9538544
    Abstract: An access network (AN) receives a call announcement message for transmission to an access terminal (AT). The AN initiates, in response to the received call announcement message, a physical-layer synchronization procedure for at least one channel between the AN and the AT, the physical-layer synchronization procedure associated with a transition of the access terminal to a dedicated channel state. The AN performs the initiation by sending a message to the AT. In response to the message, the AT monitors a downlink channel for receipt of the call announcement message. The AN then transmits the call announcement message on the downlink channel to the access terminal, and the AT receives the call announcement message due to the monitoring. The call announcement message is transmitted either (i) before the physical layer synchronization procedure completes or (ii) before a transmission of a reconfiguration complete message indicating completion of dedicated channel state transition.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: January 3, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Yih-Hao Lin, Bongyong Song
  • Publication number: 20160341578
    Abstract: The disclosure provides various methods and apparatuses for obtaining data. A method includes positioning the apparatus in proximity to a point of interest (POI), wherein an extension portion of the apparatus extends towards the POI. The method also includes providing power to a sensor via the extension portion, and receiving data from the sensor via the extension portion. The sensor may be detached from or attached to the apparatus. The data may be received via a wired or wireless connection. The power may be provided via a wired or wireless connection. The method may also include moving the extension portion further towards the POI after positioning the apparatus in proximity to the POI. The method may also include retracting the extension portion after receiving the sensor data or after expiration of a time period during which no data is received from the sensor. The apparatus may be an autonomous drone.
    Type: Application
    Filed: May 22, 2015
    Publication date: November 24, 2016
    Inventors: Edwin Chongwoo Park, Yih-Hao Lin, Samir Salib Soliman
  • Patent number: 9491590
    Abstract: The disclosure relates to group communications over multimedia broadcast-multicast services (MBMS). An embodiment of the disclosure establishes a first multicast flow and assigns a second multicast flow, wherein the second multicast flow contains signaling and media for at least one group call, and wherein the first multicast flow is configured to send information regarding activity on the second multicast flow. An embodiment of the disclosure monitors a first multicast flow for an announce message regarding a first group call, and upon receipt of the announce message, switches to a second multicast flow that contains signaling and media for the first group call.
    Type: Grant
    Filed: May 30, 2012
    Date of Patent: November 8, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Bongyong Song, Yih-Hao Lin, Mark A. Maggenti, Kirankumar Anchan
  • Patent number: 9445393
    Abstract: A user equipment (UE) determines to activate a data session. The UE configures a data session activation request message to include an indication of an association with communication sessions of a given type (e.g., delay-sensitive communication sessions), and then transmits the data session activation request message to an access network. The access network determines to establish an aggressive paging cycle of a downlink channel for the UE based in part upon receiving a message (e.g., which can be different than the data session activation request message) that conveys the indication of the association to the access network. The access network sends at least one instruction for facilitating an allocation of the aggressive paging cycle to the UE, and the UE receives the at least one instructions and monitors the downlink channel accordingly.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: September 13, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Yih-Hao Lin, Bongyong Song
  • Patent number: 9398425
    Abstract: The disclosure is directed to group communications over evolved multimedia broadcast/multicast services (E-MBMS). An embodiment identifies a schedule for an indicator on a broadcast/multicast medium of a first multicast media on a multicast flow, wherein the indicator is configured to identify a location of data on the broadcast/multicast medium and to identify a presence of the data on the multicast flow, binds application layer paging, an application layer wake up mechanism, or a power saving mechanism to the schedule for the indicator on the multicast flow, wakes from a sleep mode to monitor the indicator to determine availability of the first multicast media based on the indicator, tunes to the first multicast media if the first multicast media is available, and returns to the sleep mode, if the first multicast media is not available.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: July 19, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Kirankumar Anchan, Yih-Hao Lin
  • Patent number: 9351128
    Abstract: In an embodiment, a first MBSFN area is configured to support a higher data rate than a lower data rate portion of a second MBSFN area, and an application server executes a common data rate mode by delivering a data stream for a group session to the first and second MBSFN areas via IP multicast at a common data rate that is regulated by quality feedback. In a further embodiment, the application server exits the common data rate mode and delivers the data stream to the first MBSFN area via IP multicast at an MBSFN-specific data rate that is higher than the common data rate, while delivering the data stream to the lower data rate portion of the second MBSFN area via IP unicast. In another further embodiment, the application server resumes the common data rate mode.
    Type: Grant
    Filed: January 2, 2014
    Date of Patent: May 24, 2016
    Assignee: QUALCOMM INCORPORATED
    Inventors: Kirankumar Anchan, Arvind Vardarajan Santhanam, Yih-Hao Lin
  • Patent number: 9294956
    Abstract: Methods and systems are disclosed for preemptively establishing a multicast bearer. An embodiment determines whether adding a multicast session to a plurality of multicast bearers will exceed a high bandwidth threshold, requests setup of a new multicast bearer if adding the multicast session will exceed the high bandwidth threshold, and hosts the multicast session on an available one of the plurality of multicast bearers or the new multicast bearer.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: March 22, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Kirankumar Anchan, Yih-Hao Lin, Mark A. Maggenti
  • Patent number: 9155075
    Abstract: In an embodiment, a UE determines to transmit a message (e.g., an alert message, a call initiation message). Based on the type of the message to be transmitted, the UE selectively transmits supplemental data configured to prompt an access network to transition the UE to a dedicated channel state (DCS). In another embodiment, an application server configured to arbitrate communication sessions between UEs receives a message for transmission to a target UE. Based on the type of the message to be transmitted to the target UE, the application server selectively transmits, to a serving access network of the target UE, supplemental data configured to prompt the serving access network to transition the target UE to the DCS. In another embodiment, the access network selectively transitions a target UE to the DCS based on whether differently sized messages are received at the access network for transmission to the target UE.
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: October 6, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Bongyong Song, Karthika Paladugu, Yih-Hao Lin
  • Patent number: 9084087
    Abstract: Methods, systems, and devices for detecting earliest channel path and/or determining time of arrival of signals in location tracking systems are described. An ultra-wideband (UWB) signal may be received from a tag. A noise estimation level above which the UWB signal is detectable may be determined using a noise estimation metric. A channel impulse response (IR) energy level may be determined using a channel energy metric. A leading edge window of the UWB signal may be identified. The leading edge window may be based on, at least in part, the noise estimation level and the channel IR energy level.
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: July 14, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Siavash Ekbatani, Alok Kumar Gupta, Yih-Hao Lin