Patents by Inventor Xingqin LIN

Xingqin 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: 20200359234
    Abstract: A base station (300a) transmits, to a wireless device (100), a criteria for determining that the wireless device (100) has a status. The criteria comprises a height threshold. The wireless device (100) receives the criteria for determining that the wireless device (100) has the status from the base station (300a), The wireless device (100) transmits an indication of the status of the wireless device (100) to the base station (300a). The base station (300a) receives the indication of the status of the wireless device (100).
    Type: Application
    Filed: November 14, 2018
    Publication date: November 12, 2020
    Inventors: Helka-Liina Määttanen, Xingqin Lin, Siva Muruganathan, Henrik Rydén, Vijaya Yajnanarayana, Zhenhua Zou
  • Patent number: 10834695
    Abstract: According to certain embodiments, a method is disclosed for use in a wireless device that is configured as a Narrowband Internet-of-Things (NB-IoT) device or a machine-type-communication (MTC) device. The method comprises determining at least one parameter related to positioning. The at least one parameter is based on a capability of the wireless device that relates to observed time difference of arrival (OTDOA) positioning with NB-IoT or MTC. The method further comprises using the determined at least one parameter related to positioning.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: November 10, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Sara Modarres Razavi, Johan Bergman, Fredrik Gunnarsson, Olof Liberg, Xingqin Lin, Henrik Rydén, Iana Siomina, Yutao Sui
  • Patent number: 10820286
    Abstract: Systems and methods relating to a narrowband Primary Synchronization Signal (NB-PSS) and a narrowband Secondary Synchronization Signal (NB-SSS) are disclosed. In some embodiments, a base station in a wireless network comprises a processor and storage that stores instructions executable by the processor whereby the base station is operable to transmit a NB-PSS and a NB-SSS in a narrowband portion of a downlink system bandwidth. The NB-PSS and the NB-SSS are transmitted such that more than two occurrences of the NB-PSS and more than two occurrences of the NB-SSS are transmitted over a defined time interval, each occurrence of the NB-PSS is transmitted over multiple contiguous Orthogonal Frequency Division Multiplexing (OFDM) symbols and each occurrence of the NB-SSS is transmitted over multiple contiguous OFDM symbols, and each occurrence of the NB-SSS provides an indication of a location of the occurrence of the NB-SSS within the defined time interval.
    Type: Grant
    Filed: January 8, 2019
    Date of Patent: October 27, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Xingqin Lin, Ansuman Adhikary, Niklas Johansson, Yi-Pin Eric Wang
  • Publication number: 20200322985
    Abstract: A communications network is being accessed by a wireless device associated with a coverage class selected from a set of coverage classes. The wireless device performs a method comprising initiating network access to the communications network by transmitting a preamble sequence for random access on a physical random access channel during a starting opportunity defined by the coverage class of the wireless device. Each coverage class may be associated with a unique number of repetitions of the preamble sequence transmission.
    Type: Application
    Filed: June 18, 2020
    Publication date: October 8, 2020
    Inventors: Xingqin Lin, Ansuman Adhikary, Johan Mikael Bergman, Yufei Blankenship, Asbjörn Grövlen, Hazhir Shokri Razaghi, Yutao Sui, Yi-Pin Eric Wang
  • Patent number: 10798674
    Abstract: Methods and device for use in a wireless device of reporting positioning measurements comprises receiving network assistance information from a network node. The network assistance information is for assisting the wireless device in performing Observed Time Difference Of Arrival (OTDOA), and comprises: a list of reference cells; a list of neighbor cells; and a rule for terminating Reference Signal Time Difference (RSTD) measurements. The method further comprises performing RSTD measurement between a cell in the reference cell list and a cell in the neighbor cell list. Upon determining the RSTD measurement satisfies the rule for terminating RSTD measurements, the method includes reporting the RSTD measurements to the network node. Upon determining the RSTD measurement does not satisfy the rule for terminating RSTD measurements, performing another RSTD measurement between the cell in the reference cell list and a cell in the neighbor cell list.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: October 6, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Sara Modarres Razavi, Johan Bergman, Åke Busin, Fredrik Gunnarsson, Olof Liberg, Xingqin Lin, Henrik Rydèn, Yutao Sui, Martin Van Der Zee
  • Patent number: 10791555
    Abstract: Methods and apparatuses of resource allocation for wireless communication are presented. In an example, a user equipment (12) may contain radio circuitry and processing circuitry such that the user equipment (12) is configured to obtain a set of multiple indices, where each index in the set of multiple indices corresponds to a different uplink resource allocation from a set of uplink resource allocations (11) formed from twelve contiguous subcarriers. In an aspect, the set of uplink resource allocations (11) includes an allocation of the twelve contiguous subcarriers, two allocations of six contiguous subcarriers, four allocations of three contiguous subcarriers, and twelve allocations of a single subcarrier. In a further aspect, the user equipment (12) can receive an index indication corresponding to an index from the set of multiple indices from the base station (10).
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: September 29, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Vidit Saxena, Johan Bergman, Yufei Blankenship, Xingqin Lin
  • Patent number: 10764104
    Abstract: Provided are methods (400) of estimating a time delay and/or a frequency shift of a reference signal. Such methods include receiving (405) a first reference signal that is generated using a first Zadoff-Chu (ZC) sequence, receiving (410) a second reference signal that is generated using a second ZC sequence that is different than the first ZC sequence, and processing (415) the first reference signal and the second reference signal to estimate at least one of the time delay and the frequency shift of the first reference signal and/or the second reference signal.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: September 1, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Xingqin Lin, Ansuman Adhikary, Ali S. Khayrallah, Havish Koorapaty, Yi-Pin Eric Wang
  • Publication number: 20200267670
    Abstract: The present disclosure relates to methods and devices for synchronizing one or more radio devices with a radio access node. A method of providing synchronization with a radio access node for radio communication to one or more radio devices is disclosed. The method comprises or triggers transmitting a configuration message to at least one of the radio devices, where the configuration message is indicative of a synchronization signal configuration for a configurable synchronization signal. The method further comprises or triggers transmitting the configurable synchronization signal to the at least one radio device in accordance with the synchronization signal configuration and communicating one or more decodable signals between the radio access node and the at least one radio device using radio resources in accordance with the configurable synchronization signal. A corresponding method of synchronizing the radio device with the radio access node for radio communication is disclosed.
    Type: Application
    Filed: September 25, 2018
    Publication date: August 20, 2020
    Inventors: Magnus Åström, Johan Bergman, Andreas Höglund, Xingqin Lin, Anders Wallén
  • Publication number: 20200260502
    Abstract: An example method in a user equipment comprises generating a random access preamble signal and transmitting the random access preamble signal. This generating of the random access preamble signal comprises generating a random access preamble signal comprising two or more consecutive preamble symbol groups, each preamble symbol group comprising a cyclic prefix portion and a plurality of identical symbols occupying a single subcarrier of the random access preamble signal. The single subcarrier for at least one of the preamble symbol groups corresponds to a first subcarrier frequency and the single subcarrier for an immediately subsequent one of the preamble symbol groups corresponds to a second subcarrier frequency.
    Type: Application
    Filed: May 1, 2020
    Publication date: August 13, 2020
    Inventors: Xingqin Lin, Ansuman Adhikary, Asbjörn Grövlen, Dennis Hui, Niklas Johansson, Yutao Sui, Mårten Sundberg, Yi-Pin Eric Wang
  • Publication number: 20200260429
    Abstract: A method performed by a user equipment (UE) in idle mode, for determining common search space (CSS) for NB-IoT paging is disclosed. The method comprises determining a set of periodic subframes as a Paging Occasion (PO) subframe pattern. The method further comprises monitoring a starting subframe of paging CSS for a Radio Network Temporary Identifier (RNTI). The starting subframe of paging CSS is determined as follows: a first subframe (SF0) defined by the Paging Occasion subframe pattern, is used when SF0 is determined to be a valid downlink subframe. A next valid downlink subframe after SF0 is used when SF0 is determined to be an invalid downlink subframe.
    Type: Application
    Filed: February 19, 2020
    Publication date: August 13, 2020
    Inventors: Yufei Blankenship, Yutao Sui, Yi-Pin Eric Wang, Asbjörn Grövlen, Hazhir Shokri Razaghi, Xingqin Lin, Ansuman Adhikary, Johan Bergman
  • Patent number: 10743186
    Abstract: Embodiments herein relate for example to a method performed by a wireless device in a first wireless communication system that is deployed on a frequency resource. The wireless device receives information indicating a PRB offset and a corresponding channel raster offset. The channel raster offset is an offset in frequency between a channel raster, used by the wireless device (105) in a cell search process, and the frequency resource. The PRB offset indicates an offset between the frequency resource and an inner frequency resource on which a second wireless communication system is deployed. In the frequency domain, the second wireless communication system is deployed on at least one higher frequency resource above the inner frequency resource and at least one lower frequency resource below the inner frequency resource. The wireless device determines, based on the received information, an adjustment in frequency applicable for the frequency resource on which the first wireless communication system is deployed.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: August 11, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Yutao Sui, Ansuman Adhikary, Johan Bergman, Yufei Blankenship, Asbjörn Grövlen, Xingqin Lin, Hazhir Shokri Razaghi, Yi-Pin Eric Wang
  • Patent number: 10736150
    Abstract: A method of transmitting a signal over a physical random access channel, wherein the signal comprises a plurality of symbols forming a symbol group. The method comprises applying scrambling to a plurality of symbols within the symbol group.
    Type: Grant
    Filed: May 2, 2018
    Date of Patent: August 4, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Xingqin Lin, Margaretha Forsgren, Fredrik Huss, Olof Liberg, Yi-Pin Eric Wang
  • Publication number: 20200245365
    Abstract: Random Access (RA) formats are defined for NB-IoT operation in TDD mode. The formats are defined to allow use of in the legacy LTE subframe configurations for TDD. The formats specify a predetermined, even number P of symbol groups composing a RA preamble, wherein each symbol group comprises a Cyclic Prefix (CP) and a number X of symbols. The P symbol groups are divided into symbol group sets fitting into 1, or 2, or 3 contiguous uplink subframes, each comprising at least two symbol groups transmitted back-to-back (i.e., contiguously in time), and at least two symbol group sets are transmitted non-contiguously in time across a number of uplink subframes over which the RA preamble is transmitted. The number of symbol groups in a set can be two or three, and the number of symbol groups is four or six, respectively. Symbol groups within a set are transmitted on adjacent uplink subframes. Five format options are defined, which map to various of the LTE TDD configurations.
    Type: Application
    Filed: September 26, 2018
    Publication date: July 30, 2020
    Inventors: Xingqin Lin, Johan Mikael Bergman, Andreas Höglund, Gerardo Agni Medina Acosta, Hazhir Shokri Razaghi, Yutao Sui, Yi-Pin Eric Wang
  • Patent number: 10728930
    Abstract: A communications network is being accessed by a wireless device associated with a coverage class selected from a set of coverage classes. The wireless device performs a method comprising initiating network access to the communications network by transmitting a preamble sequence for random access on a physical random access channel during a starting opportunity defined by the coverage class of the wireless device. Each coverage class may be associated with a unique number of repetitions of the preamble sequence transmission.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: July 28, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Xingqin Lin, Ansuman Adhikary, Johan Mikael Bergman, Yufei Blankenship, Asbjörn Grövlen, Hazhir Shokri Razaghi, Yutao Sui, Yi-Pin Eric Wang
  • Publication number: 20200187151
    Abstract: A method and one or more network nodes for use in a wireless communication network to determine whether a wireless device is aerial. The one or more one or more network nodes communicate with the wireless device to instruct to report one or more metrics of wireless device parameters. The one or more network nodes receives from the wireless device a report of the metrics and then compares the reported metrics to terrestrial metrics to determine whether the wireless device is aerial.
    Type: Application
    Filed: June 29, 2018
    Publication date: June 11, 2020
    Inventors: Yi-Pin Eric WANG, Mattias BERGSTRÖM, Sebastian EULER, Shiwei GAO, Xingqin LIN, Helka-Liina MÄÄTTANEN, Siva MURUGANATHAN, Vijaya YAJNANARAYANA
  • Patent number: 10681741
    Abstract: An example method in a user equipment comprises generating a random access preamble signal and transmitting the random access preamble signal. This generating of the random access preamble signal comprises generating a random access preamble signal comprising two or more consecutive preamble symbol groups, each preamble symbol group comprising a cyclic prefix portion and a plurality of identical symbols occupying a single subcarrier of the random access preamble signal. The single subcarrier for at least one of the preamble symbol groups corresponds to a first subcarrier frequency and the single subcarrier for an immediately subsequent one of the preamble symbol groups corresponds to a second subcarrier frequency.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: June 9, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Xingqin Lin, Ansuman Adhikary, Asbjörn Grövlen, Dennis Hui, Niklas Johansson, Yutao Sui, Mårten Sundberg, Yi-Pin Eric Wang
  • Patent number: 10673653
    Abstract: A receiver baseband processor and method for performing preamble detection and Time-of-Arrival, ToA, estimation for a single-tone frequency hopping random access preamble. The processor FFT processes a received signal and identifies logical tones. For each logical tone, the processor reads received symbols; determines a ToA estimate; forms a statistic based on the ToA estimate; compares the statistic to a preamble threshold; and when the statistic is greater than or equal to the threshold, determines a preamble is present and utilizes the ToA estimate for a timing advance command.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: June 2, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Xingqin Lin, Yi-Pin Eric Wang, Ansuman Adhikary
  • Patent number: 10656241
    Abstract: A method performed by a wireless device for reporting an RSTD value to a network node of a wireless communication network. The method includes receiving a configuration of positioning reference signals (PRSs) from the network node, the configuration indicating a plurality of PRS identities for respective transmission points (TPs) of the wireless communication network, determining an RSTD value for a TP based on the received configuration, and reporting the determined RSTD value for the TP to the network node. A first frequency reuse factor for the PRSs that is lower than a default second frequency reuse factor may be used.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: May 19, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Henrik Rydén, Fredrik Gunnarsson, Xingqin Lin, Sara Modarres Razavi
  • Publication number: 20200154426
    Abstract: A method for managing a wireless connection of an Unmanned Aerial Vehicle (UAV) is described herein. In one embodiment, the method comprises receiving flight information describing a flight path for the UAV; determining a set of network resources for the UAV based on the flight information; and reserving the set of network resources by a first network cell and a second network cell of a wireless network based on the flight information.
    Type: Application
    Filed: July 10, 2017
    Publication date: May 14, 2020
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Attila TAKÁCS, Ravi MANGHIRMALANI, Heikki MAHKONEN, Yi-Pin Eric WANG, Xingqin LIN
  • Publication number: 20200120563
    Abstract: A method for managing an unmanned aerial vehicle (UAV) is described. The method may include receiving flight plan information describing a flight path of the UAV; generating one or more cell lists based on the flight plan information; and transmitting the one or more cell lists to a source cell in a wireless network in which the UAV is currently operating, wherein the one or more cell lists are used in a handover procedure between the source cell that the UAV is currently connected to and a target cell that the UAV will connect to after completing the handover procedure.
    Type: Application
    Filed: December 11, 2017
    Publication date: April 16, 2020
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Attila TAKÁCS, Ravi MANGHIRMALANI, Heikki MAHKONEN, Yi-Pin Eric WANG, Xingqin LIN