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: 20210258909
    Abstract: According to some embodiments, a method in a wireless device for use in a radio network is provided. The method includes receiving network radio coverage information from a network element and determining a path of travel for the wireless device using the received network radio coverage information. In particular embodiments, the wireless device controls the wireless device to follow the determined path of travel. The wireless device may report radio coverage information to a network element. In particular embodiments, the network element receives a radio coverage report from a wireless device, determines network radio coverage information using the received radio coverage report, and sends the determined network radio coverage information to a wireless device. The wireless device may be an unmanned aerial vehicle.
    Type: Application
    Filed: June 22, 2018
    Publication date: August 19, 2021
    Inventors: Henrik RYDÉN, Zhenhua ZOU, Xingqin LIN, Helka-Liina MÄÄTTANEN
  • Publication number: 20210212065
    Abstract: Embodiments include methods in a communication system including host computer, base station, and UE. The base station can send the UE an indication of an active bandwidth part (BWP) of a size NZBW P,1size frequency-domain resource blocks (RBs), and select frequency-domain RBs, within the active BWP, to be assigned for carrying the user data to the UE. The base station can encode an indication of the selected frequency-domain RB(s) represented by a starting virtual RB, RBstart, and a length of contiguously allocated RBs, LRBs, using a number of bits. The number is a plurality and related to a size NBW P,2size of another BWP than the active BWP. NBW P,2size is smaller than NBW P,1size. The starting virtual RB is encoded with a resolution of K RBs, with K determined based on a ratio of NBW P,1size and NBW P,2size. The base station can send the encoded indication to the UE via a downlink control channel.
    Type: Application
    Filed: March 19, 2021
    Publication date: July 8, 2021
    Inventors: Jingya Li, Robert Baldemair, Xingqin Lin, Zhipeng Lin, Stefan Parkvall, Jianwei Zhang
  • Patent number: 11051185
    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: Grant
    Filed: November 14, 2018
    Date of Patent: June 29, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Helka-Liina Määttanen, Xingqin Lin, Siva Muruganathan, Henrik Rydén, Vijaya Yajnanarayana, Zhenhua Zou
  • Publication number: 20210168725
    Abstract: Systems and methods are disclosed herein for uplink power control in a cellular communications network that are particularly well-suited for flying wireless devices (e.g., aerial User Equipments (UEs)). In some embodiments, a method performed by a wireless device for uplink power control comprises receiving, from a base station, reference altitude information comprising one or more height thresholds and detecting that a height of the wireless device is above a height threshold. The method further comprises triggering and sending a measurement report to the base station upon detecting that the height of the wireless device is above the height threshold, and receiving, from the base station, an indication to use a particular one of two or more fractional pathloss compensation factors for uplink power control. The two or more fractional pathloss compensation factors for uplink power control comprise one or more wireless device specific fractional pathloss compensation factors.
    Type: Application
    Filed: April 5, 2019
    Publication date: June 3, 2021
    Inventors: Siva Muruganathan, Shiwei Gao, Xingqin Lin, Helka-Liina Määttänen, Zhenhua Zou
  • Publication number: 20210153267
    Abstract: A system and method for providing time domain allocations in a communication system. In an embodiment, an apparatus operable in a communication system and including processing circuitry is configured to receive an indication of a time domain allocation in downlink control information associated with a radio network temporary identifier (“RNTI”) identifying the apparatus, and employ the time domain allocation associated with the RNTI for transmissions associated with the apparatus. In another embodiment, an apparatus operable in a communication system and including processing circuitry is configured to associate a time domain allocation with a RNTI identifying a user equipment, and provide an indication of the time domain allocation in downlink control information to allow the user equipment to employ the time domain allocation associated with the RNTI for transmissions associated therewith.
    Type: Application
    Filed: February 4, 2019
    Publication date: May 20, 2021
    Applicant: Telefonaktiebolaget LM Ericsson (PUBL)
    Inventors: Jianwei ZHANG, Stefan PARKVALL, Fredrik OVESJÖ, Zhipeng LIN, Jingya LI, Xingqin LIN, Jung-Fu CHENG, Robert BALDEMAIR, Asbjörn GRÖVLEN, Mattias FRENNE
  • Publication number: 20210144753
    Abstract: An example method in a wireless device operating in a wireless network comprises generating a random access preamble signal and transmitting the random access preamble signal. The generated random access preamble signal comprises a random access symbol group that comprises a plurality of consecutive symbols, where each of the plurality of consecutive symbols being modulated on a corresponding subcarrier frequency and each of the plurality of consecutive symbols corresponding to a truncated sinusoid of 3.75/N kHz, with N>1.
    Type: Application
    Filed: January 18, 2021
    Publication date: May 13, 2021
    Inventors: Xingqin Lin, Olof Liberg
  • Patent number: 11006419
    Abstract: Embodiments include methods for receiving, by a user equipment (UE) in a wireless network, assignment of frequency-domain resources of a communication channel. Such embodiments include receiving an indication of an active carrier bandwidth part (BWP) of a size NBWP,1size frequency-domain resource blocks (RBs). Such embodiments include receiving, via a downlink control channel, an indication of assigned frequency-domain RB(s) within the active BWP, with the indication being encoded with a plurality of bits related to a size NBWP,2size of a BWP than the active BWP, where NBWP,2size<NBWP,1size. Such embodiments include decoding the indication to obtain the assigned RB(s) represented by a starting virtual RB and a length of contiguously allocated RBs. The starting virtual RB is encoded with a resolution of K RBs, with K based on a ratio of NBWP,1size and NBWP,2size. Embodiments also include complementary methods performed by network nodes, and apparatus configured to perform these methods.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: May 11, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Jingya Li, Robert Baldemair, Xingqin Lin, Zhipeng Lin, Stefan Parkvall, Jianwei Zhang
  • Publication number: 20210136694
    Abstract: Embodiments of a network node for a cellular communications network are disclosed. In some embodiments, the network node comprises a radio interface and processing circuitry operable to configure a wireless device to measure Reference Signal Received Power (RSRP) for both a serving cell of the wireless device and one or more neighbor cells of the wireless device, receive resulting reporting information from the wireless device, adjust a target receive power for the wireless device based on the reporting information, determine a power correction for the wireless device based on the adjusted target receive power for the wireless device, and signal the power correction to the wireless device. Embodiments of a method of operation of a network node as well as embodiments of a wireless device and a method of operation thereof are also disclosed.
    Type: Application
    Filed: September 28, 2018
    Publication date: May 6, 2021
    Inventors: Shiwei Gao, Xingqin Lin, Siva Muruganathan, Vijaya Yajnanarayana
  • Publication number: 20210120521
    Abstract: Systems and methods for providing unlicensed drone User Equipment (UE) detection in a cellular communications network are disclosed. In this regard, embodiments of a method of operation of a server for providing unlicensed drone UE detection in a cellular communications network are disclosed. In some embodiments, the method includes receiving, from a network node, a measurement report for a UE and predicting that the UE is an unlicensed drone UE based on the measurement report for the UE. The method further includes taking one or more actions upon predicting that the UE is an unlicensed drone UE. In this manner, an efficient unlicensed drone detection mechanism is provided.
    Type: Application
    Filed: March 7, 2019
    Publication date: April 22, 2021
    Inventors: Sakib BIN REDHWAN, Henrik RYDÉN, Zhenhua ZOU, Mirsad CIRKIC, Xingqin LIN
  • Publication number: 20210112515
    Abstract: Exemplary embodiments include methods performed by a network node of a radio access network (RAN). Such embodiments can include establishing a connection with a user equipment (UE) in a cell served by the network node, and determining that the UE is engaged in unauthorized aerial operation. Unauthorized operation can include various UE operational conditions. Such embodiments can also include, based on determining the unauthorized aerial operation, performing at least one of the following operations: restricting the performance of the connection; and sending the UE a message comprising an indication that the connection will be released, and one or more conditions that the UE must meet before attempting to reestablish the connection. Embodiments also include complementary methods performed by one or more core network nodes and/or functions, as well as various network nodes and/or functions that are configured to perform various disclosed methods.
    Type: Application
    Filed: March 28, 2019
    Publication date: April 15, 2021
    Inventors: Zhenhua Zou, Mattias Bergström, Xingqin Lin, Helka-Liina Määttanen, Henrik Rydén, Magnus Stattin
  • Publication number: 20210112606
    Abstract: A wireless communication device (14) (e.g., a user equipment) in a wireless communication system (10) is configured for transmitting a random access preamble signal (16). The wireless communication device (14) in particular is configured to generate a random access preamble signal (16) that comprises multiple symbol groups (18), with each symbol group (18) on a single tone during a different time resource, according to a frequency hopping pattern that hops the random access preamble signal (16) a fixed frequency distance at one or more symbol groups (18) and hops the random access preamble signal (16) a pseudo random frequency distance at one or more other symbol groups (18). Each symbol group (18) comprises one or more symbols. The wireless communication device (14) is also configured to transmit the random access preamble signal (16).
    Type: Application
    Filed: December 22, 2020
    Publication date: April 15, 2021
    Inventors: Xingqin Lin, Ansuman Adhikary, Johan Bergman, Yufei Blankenship, Asbjörn Grövlen, Hazhir Shokri Razaghi, Yutao Sui, Yi-Pin Eric Wang
  • Publication number: 20210112602
    Abstract: A method may be provided to operate a wireless terminal in communication with a network node. The method may include receiving a Physical Downlink Control Channel, PDCCH, order from the network node. The PDCCH order may include an identification for a Random Access CHannel RACH occasion to be used for a RACH message 1 preamble transmission. Moreover, the identification may include a first index that indicates a set of RACH occasions and a second index that indicates the RACH occasion associated with the set. The method may also include transmitting a Message 1 preamble to the network node using the RACH occasion responsive to the PDCCH order.
    Type: Application
    Filed: July 31, 2018
    Publication date: April 15, 2021
    Inventors: Jingya LI, Johan AXNÄS, Asbjörn GRÖVLEN, Naga Vishnu Kanth IRUKULAPATI, Xingqin LIN, Hongxia ZHAO
  • Publication number: 20210099944
    Abstract: A technique for transmitting system information for a time-division duplex, TDD, communication in a radio access network, RAN, is described. As to a method aspect of the technique, a master information block, MIB, is transmitted on an anchor carrier (602 1) of the TDD communication in the RAN. The MIB is indicative of a spectral resource (602-1; 602-2) allocated to a system information block, SIB, of the TDD communication in the RAN. The SIB is transmitted on the spectral resource (602-1; 602-2) indicated in the MIB.
    Type: Application
    Filed: December 18, 2017
    Publication date: April 1, 2021
    Inventors: Andreas Höglund, Xingqin Lin, Yuhang Liu, Gerardo Agni Medina Acosta, Ritesh Shreevastav, Yutao Sui, Yi-Pin Eric Wang, Stefan Wänstedt
  • Publication number: 20210091365
    Abstract: A user equipment is configured for operation in a narrowband wireless communication system. The user equipment is configured to detect receipt of a narrowband positioning reference signal that comprises a narrowband reference signal sequence. The narrowband reference signal sequence is a subsequence of a wideband reference signal sequence. The wideband reference signal sequence is configured for a wideband frequency bandwidth that is wider than a maximum frequency bandwidth defined for the narrowband wireless communication system. The user equipment is also configured to perform a positioning measurement using the narrowband positioning reference signal.
    Type: Application
    Filed: December 9, 2020
    Publication date: March 25, 2021
    Inventors: Xingqin Lin, Johan Bergman, Fredrik Gunnarsson, Olof Liberg, Sara Modarres Razavi, Henrik Rydén, Yutao Sui, Yi-Pin Eric Wang
  • Publication number: 20210084447
    Abstract: It is provided a method for detecting when a user equipment, UE, is airborne. The method is performed in a UE status detector and comprises the steps of: obtaining an indicator of variation of signal strengths for signals received in the UE, wherein the signals are transmitted for at least three different cells; and determining, based on the indicator of variation, when the UE is airborne.
    Type: Application
    Filed: April 12, 2018
    Publication date: March 18, 2021
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Henrik RYDÉN, Sakib Bin REDHWAN, Xingqin Lin
  • Publication number: 20210084637
    Abstract: Methods and apparatuses are disclosed for configuring a search space to the WD based on a Control Channel Element (CCE) limit of the WD. According to one or more embodiments, a network node configured to communicate with a wireless device is provided. The network node includes processing circuitry configured to receive a Control Channel Element, CCE, limit of the wireless device and configure a search space for the wireless device to monitor based at least in part on the CCE limit of the wireless device.
    Type: Application
    Filed: February 18, 2019
    Publication date: March 18, 2021
    Inventors: Jung-Fu CHENG, Stefan ERIKSSON LÖWENMARK, Havish KOORAPATY, Xingqin LIN
  • Publication number: 20210058908
    Abstract: Apparatuses and methods are disclosed for block interleaving. In one embodiment, a method includes generating an interleaver sequence for a control resource set, CORESET, configuration for a physical downlink control channel, the interleaver sequence associated with an interleaving matrix; optionally, for each one of an allowed value of number of rows for the interleaving matrix, determining a number of null entries to be added to the interleaving matrix; and selecting a number of rows. R, for the interleaving matrix such that the number of null entries to be added to the interleaving matrix is: no more than a number of columns, C, of the interleaving matrix; and optionally, the smallest among the numbers of null entries determined for each of the allowed values of number of rows for the interleaving matrix. In another embodiment, a method includes decomposing the interleaver sequence.
    Type: Application
    Filed: January 10, 2019
    Publication date: February 25, 2021
    Inventors: Xingqin LIN, Jung-Fu CHENG, Stefan PARKVALL, Havish KOORAPATY
  • Publication number: 20210058947
    Abstract: A method, network node and wireless device for determining a fixed size resource block assignment in random access response, RAR, scheduling of MSG3 transmission based on at least one of bandwidth part size, slot/non-slot transmission and resource allocation type, are disclosed. According to one or more embodiments, a network node is configured to communicate with a wireless device. The network node includes processing circuitry configured to determine a fixed size resource block, RB, assignment for random access response, RAR, scheduling of an uplink transmission based at least in part on at least one of: whether the uplink transmission is one of slot and non-slot transmission, resource allocation type, and optionally indicate the fixed sized RB assignment to the wireless device.
    Type: Application
    Filed: February 15, 2019
    Publication date: February 25, 2021
    Inventors: Xingqin LIN, Jung-Fu CHENG
  • Patent number: 10931409
    Abstract: Systems and methods for determining configurable timing relationships and operational parameters are provided. In some embodiments, a method of operation of a wireless device in a wireless system includes determining round-trip propagation delay information between the wireless device and a network node. This round-trip propagation delay information may be a round-trip propagation delay a quantized round-trip propagation delay, or any other value indicative of the round-trip propagation delay. The in method also includes determining a Hybrid Automatic Retransmission Request (HARQ) operational parameter based on the round-trip propagation delay information between the wireless device and the network node. In this way, HARQ is extended to work for deployments with large round-trip propagation delays, such as satellite systems. This may increase the throughput and reliability of data transmission.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: February 23, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Xingqin Lin, Ansuman Adhikary, Ali S. Khayrallah, Mikael Prytz, Magnus Stattin, Yi-Pin Eric Wang
  • Publication number: 20210045077
    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: Application
    Filed: October 26, 2020
    Publication date: February 11, 2021
    Inventors: Xingqin Lin, Ansuman Adhikary, Niklas Johansson, Yi-Pin Eric Wang