Patents by Inventor Gabor Fodor

Gabor Fodor 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).

  • Network architecture, methods, and devices for a wireless communications network
    Patent number: 11381445
    Abstract: Methods and apparatus in a fifth-generation wireless communications network, including an example method, in a wireless device, that includes determining a reporting quality threshold for a parameter related to channel state information (CSI); performing a measurement for each of a plurality of beams from a first predetermined set of beams for evaluation; evaluating the measurement for each of the plurality of beams against the reporting quality threshold; discontinuing the performing and evaluating of measurements in response to determining that the reporting quality threshold is met for one of the beams, such that one or more beams in the first predetermined set of beams are not measured and evaluated; and reporting, to the wireless communications network, CSI for the one of the beams.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: July 5, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Stefan Parkvall, Janne Peisa, Gunnar Mildh, Robert Baldemair, Stefan Wager, Jonas Kronander, Karl Werner, Richard Abrahamsson, Ismet Aktas, Peter Alriksson, Junaid Ansari, Shehzad Ali Ashraf, Henrik Asplund, Fredrik Athley, Håkan Axelsson, Joakim Axmon, Johan Axnäs, Kumar Balachandran, Gunnar Bark, Jan-Erik Berg, Andreas Bergström, Håkan Björkegren, Nadia Brahmi, Cagatay Capar, Anders Carlsson, Andreas Cedergren, Mikael Coldrey, Icaro L. J. da Silva, Erik Dahlman, Ali El Essaili, Ulrika Engström, Mårten Ericson, Erik Eriksson, Mikael Fallgren, Rui Fan, Gabor Fodor, Pål Frenger, Jonas Fridén, Jonas Fröberg Olsson, Anders Furuskär, Johan Furuskog, Virgile Garcia, Ather Gattami, Fredrik Gunnarsson, Ulf Gustavsson, Bo Hagerman, Fredrik Harrysson, Ning He, Martin Hessler, Kimmo Hiltunen, Songnam Hong, Dennis Hui, Jörg Huschke, Tim Irnich, Sven Jacobsson, Niklas Jaldén, Simon Järmyr, Zhiyuan Jiang, Martin Johansson, Niklas Johansson, Du Ho Kang, Eleftherios Karipidis, Patrik Karlsson, Ali S. Khayrallah, Caner Kilinc, Göran N. Klang, Sara Landström, Christina Larsson, Gen Li, Bo Lincoln, Lars Lindbom, Robert Lindgren, Bengt Lindoff, Fredrik Lindqvist, Jinhua Liu, Thorsten Lohmar, Qianxi Lu, Lars Manholm, Ivana Maric, Jonas Medbo, Qingyu Miao, Reza Moosavi, Walter Müller, Elena Myhre, Johan Nilsson, Karl Norrman, Bengt-Erik Olsson, Torgny Palenius, Sven Petersson, Jose Luis Pradas, Mikael Prytz, Olav Queseth, Pradeepa Ramachandra, Edgar Ramos, Andres Reial, Thomas Rimhagen, Emil Ringh, Patrik Rugeland, Johan Rune, Joachim Sachs, Henrik Sahlin, Vidit Saxena, Nima Seifi, Yngve Selén, Eliane Semaan, Sachin Sharma, Cong Shi, Johan Sköld, Magnus Stattin, Anders Stjernman, Dennis Sundman, Lars Sundström, Miurel Isabel Tercero Vargas, Claes Tidestav, Sibel Tombaz, Johan Torsner, Hugo Tullberg, Jari Vikberg, Peter Von Wrycza, Thomas Walldeen, Anders Wallén, Pontus Wallentin, Hai Wang, Ke Wang Helmersson, Jianfeng Wang, Yi-Pin Eric Wang, Niclas Wiberg, Emma Wittenmark, Osman Nuri Can Yilmaz, Ali Zaidi, Zhan Zhang, Zhang Zhang, Yanli Zheng
  • OVERHEAD REDUCTION IN FREQUENCY DIVISION DUPLEXING (FDD) MULTIPLE-INPUT MULTIPLE-OUTPUT (MIMO)
    Publication number: 20220200686
    Abstract: A method, system and apparatus are disclosed. A first wireless device is provided. The first wireless device includes processing circuitry configured to: determine first beam information based at least in part on second beam information received from a second wireless device via device-to-device communications where the first beam information indicates a first beam selected by the first wireless device for downlink wireless communications, and where the second beam information indicates a second beam selected by the second wireless device for downlink wireless communications; and cause transmission of the first beam information for grid of beams precoder determination.
    Type: Application
    Filed: February 18, 2020
    Publication date: June 23, 2022
    Inventors: Gabor FODOR, Flavio MASCHIETTI, David GESBERT
  • MULTI-STAGE SIDELINK CONTROL INFORMATION
    Publication number: 20220174649
    Abstract: A radio device receives first sidelink control information from a further radio device. Based on assistance information stored in the radio device and the received first sidelink control information, the radio device determines a configuration for transmission of second sidelink control information. Based on the determined configuration for transmission of the second sidelink control information, the radio device receives the second sidelink control information from the further radio device. Based on the received second sidelink control information, the radio device receives a sidelink radio transmission from the further radio device.
    Type: Application
    Filed: February 15, 2022
    Publication date: June 2, 2022
    Inventors: Shehzad Ali ASHRAF, Ricardo BLASCO SERRANO, Gabor FODOR, Jingya LI
  • Method and apparatus for managing carrier sensing
    Patent number: 11343851
    Abstract: Methods and apparatus are proposed for managing carrier sensing in a communications system. In order to enable carrier sensing of a beamforming transmission to a served wireless device, a network node transmits a first transmission and a second transmission. The second transmission is the beamforming transmission to the served wireless device and the first transmission is an unhiding signal, which indicates the presence of the second transmission.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: May 24, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Gabor Fodor, Osama Al-Saadeh, Chrysostomos Koutsimanis
  • Radio access network node, wireless devices, methods and software for device-to-device communication
    Patent number: 11323213
    Abstract: In wireless device-to-device, D2D, communication data are transmitted directly from a first wireless device to a second wireless device. In response to the direct transmission of data, the second wireless device transmits feedback data indicating at least one quality of the data received in the second wireless device. More precisely, according to the invention, a radio access network node controls the direct transmission of data by means of downlink control information to the first and second wireless devices, and the feedback data are received in the radio access network node. The radio access network node preferably also uses the received feedback to control at least one of the first and second wireless devices.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: May 3, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Jingya Li, Hieu Do, Mikael Fallgren, Gabor Fodor
  • Recipient usage indication for carrier frequency
    Patent number: 11317294
    Abstract: A radio device (100) receives a radio transmission on a carrier frequency. While receiving the radio transmission, the radio device (100) transmits an indication that the carrier frequency is in use by the radio transmission to the radio device (100). This indication may then be used by a further radio device (10, 11) for controlling a radio transmission to the radio device (100), e.g., by deciding whether, when, or how to use the carrier frequency for this radio transmission.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: April 26, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Gabor Fodor, Osama Al-Saadeh
  • Multi-stage sidelink control information
    Patent number: 11290983
    Abstract: A radio device receives first sidelink control information from a further radio device. Based on assistance information stored in the radio device and the received first sidelink control information, the radio device determines a configuration for transmission of second sidelink control information. Based on the determined configuration for transmission of the second sidelink control information, the radio device receives the second sidelink control information from the further radio device. Based on the received second sidelink control information, the radio device receives a sidelink radio transmission from the further radio device.
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: March 29, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Shehzad Ali Ashraf, Ricardo Blasco Serrano, Gabor Fodor, Jingya Li
  • Sidelink assisted cooperative listen-before-talk
    Patent number: 11265916
    Abstract: Systems and methods are disclosed herein that relate to the use of a Device-to-Device (D2D) sidelink, e.g., in a licensed spectrum, to assist with clear channel assessment in an unlicensed spectrum. In doing so, the hidden node problem and/or the exposed node problem can be mitigated. In some embodiments, a method of operation of a wireless device in a cellular communications network comprises performing a sidelink-assisted clear channel assessment (SLA-CCA) procedure to determine whether to transmit on an unlicensed channel. The SLA-CCA procedure is a Clear Channel Assessment (CCA) procedure that is assisted by information received by the wireless device from one or more other wireless devices over a D2D sidelink in a licensed spectrum. The method further comprises, upon determining to transmit on the unlicensed channel as a result of performing the SLA-CCA procedure, transmitting a transmission on the unlicensed channel.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: March 1, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Gabor Fodor, Håkan Björkegren, Fredrik Gunnarsson, Jonas Kronander, Bo Lincoln, Anders Wallén
  • METHOD AND APPARATUS FOR MANAGING CARRIER SENSING
    Publication number: 20210410183
    Abstract: Methods and apparatus are proposed for managing carrier sensing in a communications system. In order to enable carrier sensing of a beamforming transmission to a served wireless device, a network node transmits a first transmission and a second transmission. The second transmission is the beamforming transmission to the served wireless device and the first transmission is an unhiding signal, which indicates the presence of the second transmission.
    Type: Application
    Filed: May 16, 2017
    Publication date: December 30, 2021
    Inventors: Gabor Fodor, Osama Al-Saadeh, Chrysostomos Koutsimanis
  • Method and system of a wireless communication network for detecting neighbouring UEs, of a first UE
    Patent number: 11206091
    Abstract: A method is performed by a system of a wireless communication network, for detecting neighboring UEs of a first UE that is wirelessly connected to a first base station. The method includes receiving power measurements performed on signals received at the first UE, which signals are sent from base stations, each power measurement being associated with an ID of the base station from which the signal was sent. The method further includes receiving power measurements of signals received at a second UE that is wirelessly connected to a second base station, each power measurement being associated with an ID of the base station from which the signal was sent. The method further includes determining a correlation between the received power measurements of the first and second UEs, and based on the determined correlation, determining whether the second UE is a neighbor to the first UE.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: December 21, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Gabor Fodor, Carlos F. M. Silva
  • Methods and Wireless Devices for Device to Device Communication
    Publication number: 20210392707
    Abstract: Disclosed is a method performed by a first wireless device (110) for device to device communication with a second wireless device (120). The method comprises determining a set of wireless communication resources to reserve for a transmission of data from the second wireless device (120) to the first wireless device (110), and reserving the determined set of wireless communication resources. The method further comprises informing the second wireless device (120) of the set of wireless communication resources determined for the transmission of data from the second wireless device (120) to the first wireless device (110), and receiving, from the second wireless device (120), data transmitted on any of the reserved set of wireless communication resources, or information that the second wireless device (120) is not going to use the reserved set of wireless communication resources.
    Type: Application
    Filed: November 14, 2018
    Publication date: December 16, 2021
    Inventors: Hieu Do, Wanlu Sun, Gabor Fodor, Ricardo Blasco Serrano, Stefano Sorrentino
  • Spatial filtering technique
    Patent number: 11171697
    Abstract: A method of updating spatial filters in a radio network comprising at least two transmit nodes each in radio communication with at least one receive node on a Multiple-Input Multiple-Output (MIMO) radio channel, comprises transmitting, from the respective transmit node, first reference signals precoded by a first spatial filter of the respective transmit node; and receiving, from the receive nodes, second reference signals that are precoded using a second spatial filter of the respective receive node and an error matrix of the respective receive node. The second spatial filter depends on a channel estimate based on the transmitted first reference signals. The error matrix is indicative of an error of the first and second spatial filters in equalizing the MIMO radio channel.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: November 9, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Gabor Fodor, Khaled Ardah, Walter C. Freitas, Jr., Yuri C. B. Silva
  • METHOD FOR RESOURCE ALLOCATION IN DEVICE TO DEVICE COMMUNICATION
    Publication number: 20210321363
    Abstract: A method, system and apparatus are disclosed. A network node configured to communicate with a wireless device is provided. The network node configured to, and/or comprising a radio interface and/or comprising processing circuitry configured to receive a unicast request message from a wireless device where the unicast request message includes information associated with a request for a unicast connection, and determine whether to permit establishment of the requested unicast connection based at least in part on the information in the unicast request message.
    Type: Application
    Filed: August 2, 2019
    Publication date: October 14, 2021
    Inventors: Marco BELLESCHI, Shehzad Ali ASHRAF, Gabor FODOR
  • Communication node, target device and methods for activation positioning procedure in wireless communication network
    Patent number: 11119182
    Abstract: A first communication node and method therein for activation of a positioning procedure for a target device in a wireless communication network are disclosed. The first communication node determines whether the target device has moved and activates a positioning procedure for the target device when the movement is larger than a threshold.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: September 14, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (publ)
    Inventors: Bengt Lindoff, Gabor Fodor, Fredrik Gunnarsson, Jonas Kronander, Anders Wallen
  • Multi-Level Indicator Of Radio Resource Status For Intended D2D Transmission
    Publication number: 20210219320
    Abstract: A radio device receives a first message from a further radio device. The first message indicates an intention of the further radio device to perform a device-to-device radio transmission on a set of radio resources. The radio device determines a status of the set of radio resources. In response to the first message, the radio device sends a second message comprising an indicator which indicates the determined status of the set of radio resources in terms of at least three levels.
    Type: Application
    Filed: July 9, 2018
    Publication date: July 15, 2021
    Inventors: Marco BELLESCHI, Shehzad Ali ASHRAF, Ricardo BLASCO SERRANO, Gabor FODOR, Wanlu SUN, Chunhui ZHANG
  • MULTI-STAGE SIDELINK CONTROL INFORMATION
    Publication number: 20210204250
    Abstract: A radio device receives first sidelink control information from a further radio device. Based on assistance information stored in the radio device and the received first sidelink control information, the radio device determines a configuration for transmission of second sidelink control information. Based on the determined configuration for transmission of the second sidelink control information, the radio device receives the second sidelink control information from the further radio device. Based on the received second sidelink control information, the radio device receives a sidelink radio transmission from the further radio device.
    Type: Application
    Filed: April 5, 2018
    Publication date: July 1, 2021
    Inventors: Shehzad Ali ASHRAF, Ricardo BLASCO SERRANO, Gabor FODOR, Jingya LI
  • Network Architecture, Methods, and Devices for a Wireless Communications Network
    Publication number: 20210126726
    Abstract: Methods and apparatus in a fifth-generation wireless communications, including an example method, in a wireless device, that includes receiving a downlink signal comprising an uplink access configuration index, using the uplink access configuration index to identify an uplink access configuration from among a predetermined plurality of uplink access configurations, and transmitting to the wireless communications network according to the identified uplink access configuration. The example method further includes, in the same wireless device, receiving, in a first subframe, a first Orthogonal Frequency-Division Multiplexing (OFDM) transmission formatted according to a first numerology and receiving, in a second subframe, a second OFDM transmission formatted according to a second numerology, the second numerology differing from the first numerology. Variants of this method, corresponding apparatuses, and corresponding network-side methods and apparatuses are also disclosed.
    Type: Application
    Filed: December 31, 2020
    Publication date: April 29, 2021
    Inventors: Stefan Parkvall, Janne Peisa, Gunnar Mildh, Robert Baldemair, Stefan Wager, Jonas Kronander, Karl Werner, Richard Abrahamsson, Ismet Aktas, Peter Alriksson, Junaid Ansari, Shehzad Ali Ashraf, Henrik Asplund, Fredrik Athley, Håkan Axelsson, Joakim Axmon, Johan Axnäs, Kumar Balachandran, Gunnar Bark, Jan-Erik Berg, Andreas Bergström, Håkan Björkegren, Nadia Brahmi, Cagatay Capar, Anders Carlsson, Andreas Cedergren, Mikael Coldrey, Icaro L. J. da Silva, Erik Dahlman, Ali el Essaili, Ulrika Engström, Mårten Ericson, Erik Eriksson, Mikael Fallgren, Rui Fan, Gabor Fodor, Pål Frenger, Jonas Fridén, Jonas Fröberg Olsson, Anders Furuskär, Johan Furuskog, Virgile Garcia, Ather Gattami, Fredrik Gunnarsson, Ulf Gustavsson, Bo Hagerman, Fredrik Harrysson, Ning He, Martin Hessler, Kimmo Hiltunen, Songnam Hong, Dennis Hui, Jörg Huschke, Tim Irnich, Sven Jacobsson, Niklas Jaldén, Simon Järmyr, Zhiyuan Jiang, Niklas Johansson, Martin Johansson, Du Ho Kang, Eleftherios Karipidis, Patrik Karlsson, Ali S. Khayrallah, Caner Kilinc, Göran N. Klang, Sara Landström, Christina Larsson, Gen Li, Lars Lindbom, Robert Lindgren, Bengt Lindoff, Fredrik Lindqvist, Jinhua Liu, Thorsten Lohmar, Qianxi Lu, Lars Manholm, Ivana Maric, Jonas Medbo, Qingyu Miao, Reza Moosavi, Walter Müller, Elena Myhre, Karl Norrman, Bengt-Erik Olsson, Torgny Palenius, Sven Petersson, Jose Luis Pradas, Mikael Prytz, Olav Queseth, Pradeepa Ramachandra, Edgar Ramos, Andres Reial, Thomas Rimhagen, Emil Ringh, Patrik Rugeland, Johan Rune, Joachim Sachs, Henrik Sahlin, Vidit Saxena, Nima Seifi, Yngve Selén, Eliane Semaan, Sachin Sharma, Cong Shi, Johan Sköld, Magnus Stattin, Anders Stjernman, Dennis Sundman, Lars Sundström, Miurel Isabel Tercero Vargas, Claes Tidestav, Sibel Tombaz, Johan Torsner, Hugo Tullberg, Jari Vikberg, Peter von Wrycza, Thomas Walldeen, Pontus Wallentin, Hai Wang, Ke Wang Helmersson, Jianfeng Wang, Yi-Pin Eric Wang, Niclas Wiberg, Emma Wittenmark, Osman Nuri Can Yilmaz, Ali Zaidi, Zhan Zhang, Zhang Zhang, Yanli Zheng
  • WIRELESS NODE FOR RECEIVING A WIRELESS SIGNAL AND METHOD THEREOF
    Publication number: 20210112505
    Abstract: A method for use in a wireless node configured to receive a wireless signal includes receiving, using a first set of physical resources, a first wireless signal including an indicator descriptive of a transmission power used by a second wireless node when transmitting the wireless signal on a second set of physical resources, and receiving, using the second set of physical resources, the wireless signal using an Automatic Gain Control, AGC, configuration, wherein the AGC configuration is determined based on the indicator. The disclosure further relates to a wireless node performing the method.
    Type: Application
    Filed: February 2, 2018
    Publication date: April 15, 2021
    Inventors: Jingya LI, Gabor FODOR, Ricardo BLASCO SERRANO, Shaohua LI
  • Coordination of scheduled and contention-based uplink transmissions
    Patent number: 10980039
    Abstract: A radio device performs uplink transmissions on a first carrier. The uplink transmissions on the first carrier require scheduling by a node of a wireless communication network. Further, the radio device performs uplink transmissions on a second carrier. The uplink transmissions on the second carrier require that, by a carrier sense operation, the radio device assesses the second carrier as being unoccupied before proceeding to the uplink transmission on the second carrier. For a certain uplink transmission on the second carrier, the radio device performs the carrier sense operation to assess whether the second carrier is unoccupied and provides an indication of a result of the carrier sense operation to the node which is responsible for the scheduling.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: April 13, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Gabor Fodor, Muhammad Kazmi
  • Network architecture, methods, and devices for a wireless communications network
    Patent number: 10938497
    Abstract: Methods and apparatus in a fifth-generation wireless communications, including an example method, in a wireless device, that includes receiving a downlink signal comprising an uplink access configuration index, using the uplink access configuration index to identify an uplink access configuration from among a predetermined plurality of uplink access configurations, and transmitting to the wireless communications network according to the identified uplink access configuration. The example method further includes, in the same wireless device, receiving, in a first subframe, a first Orthogonal Frequency-Division Multiplexing (OFDM) transmission formatted according to a first numerology and receiving, in a second subframe, a second OFDM transmission formatted according to a second numerology, the second numerology differing from the first numerology. Variants of this method, corresponding apparatuses, and corresponding network-side methods and apparatuses are also disclosed.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: March 2, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Stefan Parkvall, Janne Peisa, Gunnar Mildh, Robert Baldemair, Stefan Wager, Jonas Kronander, Karl Werner, Richard Abrahamsson, Ismet Aktas, Peter Alriksson, Junaid Ansari, Shehzad Ali Ashraf, Henrik Asplund, Fredrik Athley, Håkan Axelsson, Joakim Axmon, Johan Axnäs, Kumar Balachandran, Gunnar Bark, Jan-Erik Berg, Andreas Bergström, Håkan Björkegren, Nadia Brahmi, Cagatay Capar, Anders Carlsson, Andreas Cedergren, Mikael Coldrey, Icaro L. J. da Silva, Erik Dahlman, Ali el Essaili, Ulrika Engström, Mårten Ericson, Erik Eriksson, Mikael Fallgren, Rui Fan, Gabor Fodor, Pål Frenger, Jonas Fridén, Jonas Fröberg Olsson, Anders Furuskär, Johan Furuskog, Virgile Garcia, Ather Gattami, Fredrik Gunnarsson, Ulf Gustavsson, Bo Hagerman, Fredrik Harrysson, Ning He, Martin Hessler, Kimmo Hiltunen, Songnam Hong, Dennis Hui, Jörg Huschke, Tim Irnich, Sven Jacobsson, Niklas Jaldén, Simon Järmyr, Zhiyuan Jiang, Niklas Johansson, Martin Johansson, Du Ho Kang, Eleftherios Karipidis, Patrik Karlsson, Ali S. Khayrallah, Caner Kilinc, Göran N. Klang, Sara Landstrom, Christina Larsson, Gen Li, Lars Lindbom, Robert Lindgren, Bengt Lindoff, Fredrik Lindqvist, Jinhua Liu, Thorsten Lohmar, Qianxi Lu, Lars Manholm, Ivana Maric, Jonas Medbo, Qingyu Miao, Reza Moosavi, Walter Müller, Elena Myhre, Karl Norrman, Bengt-Erik Olsson, Torgny Palenius, Sven Petersson, Jose Luis Pradas, Mikael Prytz, Olav Queseth, Pradeepa Ramachandra, Edgar Ramos, Andres Reial, Thomas Rimhagen, Emil Ringh, Patrik Rugeland, Johan Rune, Joachim Sachs, Henrik Sahlin, Vidit Saxena, Nima Seifi, Yngve Selén, Eliane Semaan, Sachin Sharma, Cong Shi, Johan Sköld, Magnus Stattin, Anders Stjernman, Dennis Sundman, Lars Sundström, Miurel Isabel Tercero Vargas, Claes Tidestav, Sibel Tombaz, Johan Torsner, Hugo Tullberg, Jari Vikberg, Peter von Wrycza, Thomas Walldeen, Pontus Wallentin, Hai Wang, Ke Wang Helmersson, Jianfeng Wang, Yi-Pin Eric Wang, Niclas Wiberg, Emma Wittenmark, Osman Nuri Can Yilmaz, Ali Zaidi, Zhan Zhang, Zhang Zhang, Yanli Zheng