Patents by Inventor Qianxi Lu

Qianxi Lu 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: 20210058915
    Abstract: A method for determining a sidelink type, a terminal device, and a network device are provided. The method comprises: receiving downlink control information (DCI) sent by a network device; determining, on the basis of the DCI, a first type of sidelink or a second type of sidelink as a target sidelink according to a preset rule, the first type of sidelink being different from the second type of sidelink in configuration parameters; and using the target sidelink to perform data transmission of the sidelink.
    Type: Application
    Filed: November 5, 2020
    Publication date: February 25, 2021
    Inventors: Qianxi LU, Huei-Ming LIN
  • Publication number: 20210058883
    Abstract: Disclosed are a relay system synchronization method and apparatus, and a computer device and a storage medium. The method may comprise: a relay node determining a first slot boundary; the relay node sending downlink data to a child node by means of time alignment between a second slot boundary of the downlink data sent to the child node and the first slot boundary; in addition, the relay node determining a first timing advance at least according to the following information: a second timing advance for the relay node to send uplink data to a parent node and the transmission delay between the relay node and the child node; and the relay node sending the first timing advance to the child node, wherein the first timing advance is used for the child node to determine the sending time for sending the uplink data to the relay node.
    Type: Application
    Filed: November 3, 2020
    Publication date: February 25, 2021
    Inventors: Qianxi Lu, Huei-Ming Lin
  • Publication number: 20210051638
    Abstract: A data transmission method and a terminal device are disclosed, which may solve the data transmission problems of a sidelink when the size of a time unit of a downlink and the size of a time unit of the sidelink are not the same. The method includes that a terminal device receives first control information sent by a network device, and determines a sending time for sidelink data according to the first control information.
    Type: Application
    Filed: November 3, 2020
    Publication date: February 18, 2021
    Inventors: QIANXI LU, HUEI-MING LIN
  • Publication number: 20210051675
    Abstract: The embodiments of the present disclosure provide a communication method and a terminal. The method includes selecting, by a first terminal, a first carrier or a first resource pool from at least one carrier or at least one resource pool according to a Quality of Service (QoS) attribute configuration and/or a transmission format configuration corresponding to the at least one carrier or the at least one resource pool. The method also includes communicating, by the first terminal, with a second terminal using the first carrier or the first resource pool.
    Type: Application
    Filed: October 30, 2020
    Publication date: February 18, 2021
    Inventor: Qianxi LU
  • Patent number: 10904712
    Abstract: Methods, apparatus and computer program products for improving multi-cast communication. A method implemented at a server comprises determining at least one cluster; determining a mapping between one of the at least one cluster and at least one bearer; indicating the determined mapping to a radio access network (RAN); and multicasting a message using a first bearer via the RAN, the first bearer being selected from the at least one bearer based on the mapping. With the disclosure, multi-cast services can be provided with more flexibly and higher efficiency.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: January 26, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Qianxi Lu, Zhang Zhang, Stefano Sorrentino, Marco Belleschi, Henrik Enbuske
  • Publication number: 20210022170
    Abstract: Embodiments of the present disclosure provide methods, apparatuses and computer programs for scheduling a transmission. A method implemented at a terminal device comprises receiving, from a network device, a scheduling configuration for a device to device, D2D, transmission of the terminal device; receiving, from the network device, an uplink scheduling grant for a cellular uplink transmission in a same time resource overlapping with the D2D transmission; determining a scheduling priority for the D2D transmission relative to the cellular uplink transmission based on at least one of: a first comparison between an associated priority of the scheduling configuration and a first priority threshold, and a transmission restriction; and performing at least one of the D2D transmission and the cellular uplink transmission based on the determined scheduling priority. With embodiments of the disclosure, D2D transmission and cellular uplink transmission from a terminal device can he well coordinated.
    Type: Application
    Filed: October 1, 2020
    Publication date: January 21, 2021
    Inventors: Qianxi Lu, Zhang Zhang, Marco Belleschi
  • Publication number: 20200413480
    Abstract: A user equipment and a method for controlling transmission of same in a wireless communication system are provided. The user equipment is configured to implement an access stratum (AS) layer. The method includes receiving, from an upper layer to the AS layer, a first indication and a second indication for a packet, wherein the first indication is configured to indicate whether to perform a packet data control protocol (PDCP) duplication, and the second indication is configured to indicate whether to use a release 15 feature and controlling the AS layer not to perform the PDCP duplication and controlling the AS layer not to use the release 15 feature when the first indication indicates to perform the PDCP duplication and the second indication indicates not to use the release 15 feature.
    Type: Application
    Filed: August 13, 2020
    Publication date: December 31, 2020
    Inventors: Qianxi LU, Zhenshan Zhao, Huei-Ming Lin
  • Patent number: 10880936
    Abstract: There is provided cluster head selection in a communications network. A respective beacon signal is by a wireless device received from each one of at least one further wireless device. Each beacon signal comprises a cluster head capability metric. Each of the received cluster head capability metrics is compared to at least one qualifying criterion. One of the at least one further wireless devices is selected as the cluster head of the wireless device based on the comparison.
    Type: Grant
    Filed: August 15, 2019
    Date of Patent: December 29, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Gabor Fodor, Bengt Lindoff, Qianxi Lu, Qingyu Miao, Pontus Wallentin
  • Patent number: 10863561
    Abstract: According to some embodiments, a method in a first wireless device of relaying data from a second wireless device to a wireless communication network comprises: obtaining data transmission information associated with data to be relayed from the second wireless device to the wireless communication network; requesting resources from the wireless communication network according to the data transmission information before receiving the data to be relayed; receiving an indication of resources from the wireless communication network; receiving the data from the second wireless device; and transmitting the data to the wireless communication network using the indicated resources. In particular embodiments, the data transmission information includes at least one of an amount of data to be relayed from the second wireless device to the wireless communication network and an estimated time for receiving the data from the second wireless device at the first wireless device.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: December 8, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Yunxi Li, Stefan Wänstedt, Eric Andersson, Marco Belleschi, Henrik Enbuske, Mats Folke, Qianxi Lu
  • Publication number: 20200383116
    Abstract: A method in a node is disclosed. The method comprises generating a tag for an associated data packet at a first layer, the generated tag indicating one or more parameters related to transmission of the associated data packet. The method comprises signaling the tag from the first layer to another layer. The method comprises mapping, at the another layer, the associated data packet to a logical channel based on the one or more parameters indicated by the tag, and selecting one or more resources for transmission of the associated data packet based on the mapping of the associated data packet to the logical channel.
    Type: Application
    Filed: August 20, 2020
    Publication date: December 3, 2020
    Inventors: Qianxi LU, Marco BELLESCHI, Johnny KAROUT, Stefano SORRENTINO, Pontus WALLENTIN
  • Patent number: 10848230
    Abstract: The present invention generally relates to wireless communication, more particularly, relates to recovery from beam failure in a wireless access network where beamforming technique is used in communication between network elements. According to one aspect of the present invention, there is provided a method for recovery from beam failure in a wireless access network accessed by a user equipment (UE). The method comprises: at the wireless access network, determining whether the beam failure occurs on the basis of presence of a response from the UE during communicating between the wireless access network and the UE via a first beam; and if it is determined that the beam failure occurs, communicating with the UE via an available beam selected from the first beam and one or more second beams.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: November 24, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Qianxi Lu, Rui Fan, Qingyu Miao, Zhang Zhang, Johan Rune
  • Patent number: 10834747
    Abstract: Embodiments of the present disclosure provide methods, apparatuses and computer programs for scheduling a transmission. A method implemented at terminal device comprises receiving, from a network device, a scheduling configuration for a device to device, D2D, transmission of the terminal device receiving, from the network device, an uplink scheduling grant for a cellular uplink transmission in a same time resource overlapping with the D2D transmission; determining a scheduling priority for the D2D transmission relative to the cellular uplink transmission based on at least one of: a first comparison between an associated priority of the scheduling configuration and a first priority threshold, and a transmission restriction; and performing at least one of the D2D transmission and the cellular uplink transmission based on the determined scheduling priority. With embodiments of the disclosure, D2D transmission and cellular uplink transmission from a terminal device can be well coordinated.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: November 10, 2020
    Assignee: Telefonaktiebolagett LM Ericcson (publ)
    Inventors: Qianxi Lu, Zhang Zhang, Marco Belleschi
  • Patent number: 10813021
    Abstract: A technique relating to resource configuration in a wireless communication network. A terminal device in the wireless communication network receives information about supplemental resource from a source cell. Then the terminal device determines a time interval, in which the supplemental resource is available to the terminal device, in a transition period of a handover from the source cell to a target cell based on a timer associated with a random access procedure in the handover. In this way, the terminal device may use the supplemental resource during the handover.
    Type: Grant
    Filed: February 4, 2019
    Date of Patent: October 20, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Yunxi Li, Qianxi Lu
  • Patent number: 10779153
    Abstract: A method of operating a first wireless communication device to perform D2D discovery includes obtaining multiple discovery message detection results, and determining a D2D discovery status of a second wireless communication device based on the multiple discovery message detection results. Using multiple discovery message detection results to determine the D2D discovery status of the second wireless communication device significantly increases the reliability of D2D discovery, thereby increasing the likelihood that a device available for D2D communication will be detected, while reducing the likelihood of false detections.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: September 15, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Stefano Sorrentino, Qianxi Lu, Zhenshan Zhao, Qingyu Miao
  • Patent number: 10778399
    Abstract: A method for operating a network node in a millimeter network, mmW network is provided. Operations according to the method include receiving a data packet comprising header information, the header information indicating a source ID, a destination ID, 5 a flow ID and a UE ID; and transmitting, to the preceding network node, an ARQ response message indicating the flow ID and the UE ID and ACK/NACK pertaining to the received data packet. Related devices and methods are also provided.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: September 15, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Gunnar Mildh, Rui Fan, Qianxi Lu
  • Patent number: 10779154
    Abstract: The disclosed embodiments herein relate to a method in a first communication device, a first communication device, a method in a second communication device and a second communication device and computer programs respectively. The method in the first communication device comprises: receiving from the second communication device, a discovery message at Layer 1 of the first communication device; identifying a message format of the received discovery message; decoding the received discovery message according to the identified message format; and sending the decoded discovery message to higher layers, L2/L3, of the first communication device.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: September 15, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Yunxi Li, Qianxi Lu, Stefano Sorrentino
  • Publication number: 20200288416
    Abstract: A user equipment, UE, comprising a communication interface, a memory configured to store computer-executable instructions, and one or more processors in communication with the communication interface and the memory and configured to execute the computer-executable instructions to at least select one or more carriers for transmitting synchronization signal from a carrier set, and a transmit the synchronization signal over the one or more carriers.
    Type: Application
    Filed: May 20, 2020
    Publication date: September 10, 2020
    Applicant: Guangdong OPPO Mobile Telecommunications Corp., Ltd.
    Inventors: Zhenshan Zhao, Qianxi Lu
  • Patent number: 10764903
    Abstract: A method in a node is disclosed. The method comprises generating a tag for an associated data packet at a first layer, the generated tag indicating one or more parameters related to transmission of the associated data packet. The method comprises signaling the tag from the first layer to another layer. The method comprises mapping, at the another layer, the associated data packet to a logical channel based on the one or more parameters indicated by the tag, and selecting one or more resources for transmission of the associated data packet based on the mapping of the associated data packet to the logical channel.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: September 1, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Qianxi Lu, Marco Belleschi, Johnny Karout, Stefano Sorrentino, Pontus Wallentin
  • Patent number: 10716038
    Abstract: A method performed by a first wireless device for handling a device-to-device (D2D) communication with a second wireless device during handover of the first wireless device from a source network node to a target network node in a wireless telecommunications network is provided. The first wireless device interrupts the D2D communication. Then, the first wireless device determines a first uplink timing difference as the difference between the uplink timing to the source network node and the uplink timing to the target network node. Further, the first wireless device reconfigures the D2D communication based on the first uplink timing difference. Then, the first wireless device restarts the D2D communication as reconfigured. A first wireless device is also provided, along with a target network node, a source network node and methods therein for handling a D2D communication.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: July 14, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Qianxi Lu, Qingyu Miao
  • Patent number: 10708944
    Abstract: Methods, a network node and a wireless device for implementing pre-configured grants with a hopping pattern in a wireless communication system are disclosed. According to one aspect, a method in a network node for scheduling uplink transmissions for at least one wireless device is provided. The method includes defining a set of time-frequency uplink distribution patterns utilizing preconfigured grants of time-frequency resources for the at least one wireless device. The method also includes assigning to a first wireless device of the at least one wireless device a first time-frequency uplink distribution pattern from the set.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: July 7, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Malik Wahaj Arshad, Qianxi Lu, Zhenhua Zou