Patents by Inventor Zhang Zhang

Zhang Zhang 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).

  • Patent number: 10880059
    Abstract: According to an aspect, a radio access network node supports the transmission of multi-user superposition transmissions, where multi-user superposition transmission comprises transmitting, in each of a plurality of time-frequency resource elements, a modulation symbol intended for a first UE and a modulation symbol intended for a second UE, using the same antennas and the same antenna precoding. The radio access network node receives multiple CSI reports from the first UE for a first reporting instance. One or more of the received multiple CSI reports correspond to one or more respective multi-user superposition transmission states. The radio access network node also determines whether to use multi-user superposition transmission or an orthogonal multiple access transmission for scheduling the first UE in a first scheduling interval, based on the received multiple CSI reports.
    Type: Grant
    Filed: August 15, 2016
    Date of Patent: December 29, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Siva Muruganathan, Mattias Frenne, Shiwei Gao, Robert Mark Harrison, Bo Lincoln, Zhang Zhang
  • Patent number: 10880938
    Abstract: Embodiments of the present disclosure provide a method, apparatus and computer program product for sidelink transmission control. The method implemented at a first user equipment which supports a first radio access technology comprises: determining a sidelink transmission mode for transmitting, wherein the sidelink transmission mode is one of a first mode corresponding to the first radio access technology and a second mode corresponding to a second radio access technology; and transmitting a sidelink signal according to the sidelink transmission mode using a sidelink resource configured by a network node which serves the first user equipment.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: December 29, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Yunxi Li, Ricardo Blasco Serrano, Stefano Sorrentino, Zhang Zhang
  • Publication number: 20200403731
    Abstract: A method and device for sidelink data duplication. The method includes: determining whether a sidelink data packet is to be duplicated based on a sidelink radio bearer on which the sidelink data packet is to be transmitted; performing sidelink data duplication of the sidelink data packet when it is determined that the sidelink data packet is to be duplicated based on the sidelink radio bearer. Therefore, a solution provides for properly configuring data duplication for sidelink.
    Type: Application
    Filed: July 26, 2018
    Publication date: December 24, 2020
    Inventors: Zhang ZHANG, Shehzad Ali ASHRAF, Liang HU, Marco BELLESCHI, Ricardo BLASCO SERRANO
  • Patent number: 10873369
    Abstract: A coordinated multipoint (CoMP) controller coordinates transmission from a CoMP cluster to a wireless communication device. The CoMP controller determines, from among multiple different coordination hypotheses for how to coordinate transmissions from the CoMP cluster to the wireless communication device, a coordination hypothesis to apply. The CoMP controller applies the determined coordination hypothesis to transmissions from the CoMP cluster on channel state information (CSI) radio resources on which the wireless communication device is to perform CSI measurements. Notably, though, the CoMP controller defers applying the determined coordination hypothesis to transmissions from the CoMP cluster on user data radio resources, until after the determined coordination hypothesis is applied to the transmissions on the CSI radio resources.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: December 22, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Zhang Zhang, Svante Bergman, Jan Christoffersson
  • Publication number: 20200374915
    Abstract: This disclosure provides a scheduling latency determining method, and relates to the field of communications technologies, to reduce power consumption of UE. The solution includes: sending, by a terminal apparatus, information about one or more component carrier CC groups to a communications apparatus, where the information about the one or more CC groups is used by the communications apparatus to determine N CC groups, each of the N CC groups includes one or more CCs, and N is a positive integer; receiving, by the terminal apparatus, a scheduling latency set sent by the communications apparatus; and determining, by the terminal apparatus based on the scheduling latency set, a scheduling latency of scheduling a data channel corresponding to a control channel by using the control channel. This solution may be used to reduce power consumption of the terminal apparatus.
    Type: Application
    Filed: August 12, 2020
    Publication date: November 26, 2020
    Inventors: Xiaolei TIE, Hao TANG, Zhang ZHANG
  • Publication number: 20200374826
    Abstract: An uplink synchronization method and an apparatus are provided. The method includes: sending, by a network device, a timing advance command to a communications device, where the timing advance command includes a timing advance TA reference value, and the TA reference value corresponds to a carrier in a timing advance group TAG; determining, by the communications device, a TA offset of the carrier based on carrier information of the carrier; and adjusting, by the communications device, an uplink transmission timing of the carrier based on the TA reference value and the TA offset of the carrier.
    Type: Application
    Filed: August 12, 2020
    Publication date: November 26, 2020
    Inventors: Zhang Zhang, Yongzhao Cao, Zhe Liu, Jinlin Peng, Zhi Li, Fan Wang
  • Publication number: 20200374077
    Abstract: A method for determining a slot format and a device are disclosed, to determine an ECP slot format. The method for determining a slot format includes: obtaining first indication information, where the first indication information includes indication information of a slot format a, the slot format a is one of slot formats of a first-type slot, the first-type slot includes N symbols, and N is 14; and determining a slot format b of 2(?-?a) consecutive second-type slots based on a subcarrier spacing ?a applicable to the first indication information, a subcarrier spacing ? applicable to the second-type slot, and the indication information of the slot format a, where the second-type slot includes M symbols, and N is not equal to M.
    Type: Application
    Filed: August 13, 2020
    Publication date: November 26, 2020
    Inventors: Yafei Wang, Xinxian Li, Hao Tang, Zhang Zhang
  • 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
  • Publication number: 20200351950
    Abstract: Example random access methods and apparatuses are provided. One example method includes: receiving SUL configuration information, where the SUL configuration information includes at least one first SUL resource and at least one SUL selection threshold that are corresponding to a first SSB; determining, based on a downlink measurement value of the first SSB and the at least one SUL selection threshold, a carrier resource used for random access, where the carrier resource includes one of the at least one first SUL resource or includes a non-SUL resource corresponding to the first SSB; and performing random access on the determined carrier resource.
    Type: Application
    Filed: July 16, 2020
    Publication date: November 5, 2020
    Inventors: Zhe LIU, Zhang ZHANG, Guohua ZHOU
  • Publication number: 20200337096
    Abstract: Methods, a user equipment (UE) and a base station are disclosed for sidelink identification. According to an embodiment, a first UE participates in an identity (ID) determination procedure such that a sidelink ID is determined for a sidelink between the first UE and a second UE. The sidelink ID comprises a full ID for identifying one of the first and second UEs and a short ID for identifying the other of the first and second UEs.
    Type: Application
    Filed: August 3, 2018
    Publication date: October 22, 2020
    Inventors: Zhang Zhang, Ricardo Blasco Serrano, Shehzad Ali Ashraf, Marco Belleschi
  • Publication number: 20200328833
    Abstract: Performing a superposed transmission in a wireless communications network. The superposed transmission includes a first signal intended for a first wireless device and a second signal intended for a second wireless device that are superposed and transmitted simultaneously by the network node on the same transmission resources. A first ratio and a second ratio of the total transmission power available for the superposed transmission are determined. The first ratio is to be used for the first signal and the second ratio is to be used for the second signal. Information indicating the first and/or second ratio is transmitted to at least the first wireless device and the superposed transmission to the first and second wireless device is performed simultaneously on the same transmission resources by transmitting the first signal using a transmission power according to the first ratio and the second signal using a transmission power according to the second ratio.
    Type: Application
    Filed: June 15, 2020
    Publication date: October 15, 2020
    Inventors: Shiwei GAO, Mattias FRENNE, Robert Mark HARRISON, Bo LINCOLN, Siva MURUGANATHAN, Zhang ZHANG
  • Publication number: 20200272902
    Abstract: The method includes: performing feature extraction on a to-be-detected image at a plurality of different abstraction degrees, to obtain a plurality of first feature maps of a pedestrian attribute; performing convolution on the plurality of first feature maps, to obtain a plurality of second feature maps; mapping each second feature map to a plurality of areas (bins) that overlap each other, and performing max pooling on each bin, to obtain a plurality of high-dimensional feature vectors, where the plurality of bins that overlap each other evenly cover each second feature map; processing the plurality of high-dimensional feature vectors into a low-dimensional vector, to obtain an identification result of the pedestrian attribute; and further obtaining a positioning result of the pedestrian attribute based on the plurality of second feature maps and the plurality of high-dimensional feature vectors.
    Type: Application
    Filed: March 4, 2020
    Publication date: August 27, 2020
    Inventors: Bailan FENG, Chunfeng YAO, Kaiqi HUANG, Zhang ZHANG, Yang ZHOU
  • Publication number: 20200267720
    Abstract: This application discloses a carrier status indication method and device, to support carrier activation and deactivation in New Radio (NR) systems. The method includes communicating, by a communications apparatus, with a network device on a first uplink carrier based on a first downlink carrier and receiving, by the communications apparatus, carrier status indication information sent by the network device. The carrier status indication information indicates carrier statuses of M carriers corresponding to N cells that are of the network device and that serve the communications apparatus, and the carrier status includes an activated state and a deactivated state. Flexible carrier activation and deactivation in the NR can be implemented by using the method provided in this application.
    Type: Application
    Filed: March 30, 2020
    Publication date: August 20, 2020
    Inventors: Zhang ZHANG, Fan WANG
  • Publication number: 20200259528
    Abstract: A coordinated multipoint, CoMP, controller (108) coordinates transmission from a CoMP cluster (102) to a wireless communication device (114). The CoMP controller (108) determines from among multiple different coordination hypotheses for how to coordinate transmissions from the CoMP cluster (102) to the wireless communication device (114), a coordination hypothesis to apply. The CoMP controller (108) applies the determined coordination hypothesis (122) to transmissions from the CoMP cluster (102) on channel state information, CSI, radio resources on which the wireless communication device (114) is to perform CSI measurements. Notably, though, the CoMP controller (108) defers applying the determined coordination hypothesis to transmissions from the CoMP cluster (102) on user data radio resources, until after the determined coordination hypothesis is applied to the transmissions on the CSI radio resources.
    Type: Application
    Filed: December 8, 2015
    Publication date: August 13, 2020
    Inventors: Zhang Zhang, Svante Bergman, Jan Christoffersson
  • Patent number: 10728808
    Abstract: The present disclosure relates to methods and arrangements for performing wireless device assisted handover form a source access node to a target access node. Performed in a wireless device, the method comprises performing (S31) one or more mobility measurements for corresponding candidate radio links and transmitting (S33) a first radio link measurement report, comprising the mobility measurements for a recommended target link, using a first radio link reporting mechanism to the source access node. When communication over a target link is not initiated under a predetermined condition, the method comprises transmitting a second radio link measurement report, for the one or more candidate radio links, on the recommended target link using a second radio link reporting mechanism different from the first radio link reporting mechanism.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: July 28, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Claes Tidestav, Icaro L. J. Da Silva, Qingyu Miao, Johan Rune, Zhang Zhang
  • Patent number: 10727967
    Abstract: Performing a superposed transmission in a wireless communications network. The superposed transmission includes a first signal intended for a first wireless device and a second signal intended for a second wireless device that are superposed and transmitted simultaneously by the network node on the same transmission resources. A first ratio and a second ratio of the total transmission power available for the superposed transmission are determined. The first ratio is to be used for the first signal and the second ratio is to be used for the second signal. Information indicating the first and/or second ratio is transmitted to at least the first wireless device and the superposed transmission to the first and second wireless device is performed simultaneously on the same transmission resources by transmitting the first signal using a transmission power according to the first ratio and the second signal using a transmission power according to the second ratio.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: July 28, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Shiwei Gao, Mattias Frenne, Robert Mark Harrison, Bo Lincoln, Siva Muruganathan, Zhang Zhang
  • Patent number: 10721584
    Abstract: The present disclosure provides a method in a network device for geo-based transmission. The network device comprises at least one Transmission/Reception Point (TRP) each configured with at least one beam. The method comprises: obtaining a target geographical area of a data packet; selecting, from the at least one TRP and/or the at least one beam, one or more TRPs and/or beams for broadcasting the data packet based on the target geographical area; and broadcasting the data packet via the selected one or more TRPs and/or beams.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: July 21, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Zhang Zhang, Stefano Sorrentino
  • Publication number: 20200229180
    Abstract: This application provides a data transmission method and a communications apparatus. The method includes: receiving uplink resource configuration information including information about at least two uplink reference points, and one uplink reference point corresponds to one uplink carrier; and determining, based on the uplink resource configuration information, an uplink carrier on which an uplink transmission resource is located.
    Type: Application
    Filed: March 27, 2020
    Publication date: July 16, 2020
    Inventors: Zhe Liu, Guohua Zhou, Yubo Yang, Yi Long, Zhang Zhang, Jinlin Peng, Zhenfei Tang
  • Patent number: 10683278
    Abstract: Provided are a substituted quinolone derivative as shown by formula (I), or a pharmaceutically acceptable salt and a prodrug molecule thereof, and a pharmaceutical composition thereof, as well as the use of same in preparing drugs for the prevention and treatment of a tumor. The quinolone derivative, salt, prodrug molecule, and pharmaceutical composition thereof can be used as a protein kinase inhibitor, which is effective in inhibiting the activity of AXL protein kinase, and is capable of inhibiting the proliferation, migration and invasion of various tumor cells; and can be used in the preparation of anti-tumor drugs, especially drugs for treating hyperproliferative diseases such as a tumor in human beings and other mammals.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: June 16, 2020
    Assignees: SHANGHAI HAIHE PHARMACEUTICAL CO., LTD., JINAN UNIVERSITY, SHANGHAI INTITUTE OF MATERIA MEDICA, CHINESE ACADEMY OF SCIENCES
    Inventors: Ke Ding, Meiyu Geng, Li Tan, Jian Ding, Zhang Zhang, Jing Ai, Xiaomei Ren, Donglin Gao, Zhengchao Tu, Xiaoyun Lu, Dongmei Zhang