Patents by Inventor Zhengrong Lai

Zhengrong Lai 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: 8797955
    Abstract: The present invention provides a method for duplexing communication, and a method and a system for scheduling a terminal. The method for scheduling a terminal includes: determining capability information of the terminal when the terminal makes a request for a service; allocating a band resource for the terminal according to the capability information of the terminal and the currently available band resources, and sending information of the allocated band resource to the terminal in the band currently used by the terminal, wherein the allocated band resource includes a bidirectionally used band, and at least one of the uplink band and downlink band includes a unidirectional band; and communicating with the terminal in the manner of time division duplexing by way of the allocated band resource. The present invention makes the best of the band resources near the TDD licensed band and improves the communication efficiency.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: August 5, 2014
    Assignee: ZTE Corporation
    Inventors: Xinxi Diao, Zhengrong Lai, Xiaodong Zhu, Zhifeng Ma, Guang Yang
  • Publication number: 20120275352
    Abstract: A wireless relay device includes: a first receiving channel configured to receive signals from a base station or from a base station and a terminal, a second receiving channel configured to receive signals from the terminal, a first sending channel configured to send signals to the base station or to the base station and the terminal, and a second sending channel configured to send signals to the terminal, and further includes a radio frequency control unit configured to, during communicating with the base station and the terminal, control the first receiving channel, the second receiving channel, the first sending channel and the second sending channel to use frequency bands in the following mode: receiving signals synchronously from the base station and the terminal in a first time interval, and sending signals synchronously to the base station and the terminal in a second time interval, wherein the third frequency band and the fifth frequency band are two guard bands between the working frequency band of a
    Type: Application
    Filed: June 11, 2010
    Publication date: November 1, 2012
    Applicant: ZTE Corporation
    Inventors: Xinxi Diao, Zhifeng Ma, Zhengrong Lai, Xiaodong Zhu, Guang Yang
  • Publication number: 20120257551
    Abstract: The present invention provides a method for duplexing communication, and a method and a system for scheduling a terminal. The method for scheduling a terminal includes: determining capability information of the terminal when the terminal makes a request for a service; allocating a band resource for the terminal according to the capability information of the terminal and the currently available band resources, and sending information of the allocated band resource to the terminal in the band currently used by the terminal, wherein the allocated band resource includes a bidirectionally used band, and at least one of the uplink band and downlink band includes a unidirectional band; and communicating with the terminal in the manner of time division duplexing by way of the allocated band resource. The present invention makes the best of the band resources near the TDD licensed band and improves the communication efficiency.
    Type: Application
    Filed: June 22, 2010
    Publication date: October 11, 2012
    Applicant: ZTE CORPORATION
    Inventors: Xinxi Diao, Zhengrong Lai, Xiaodong Zhu, Zhifeng Ma, Guang Yang
  • Publication number: 20120250591
    Abstract: A method for carrier aggregation comprises: in a first time zone, sending, by a radio access point, a downlink signal to a user terminal by using a first guard band between a time division duplexing (TDD) system and a frequency division duplexing (FDD) system and a bidirectional communication band of the TDD system; or/and, in a second time zone, receiving, by the radio access point, a uplink signal sent by the user terminal using a second guard band between the TDD system and the FDD system and the bidirectional communication band. A method for dynamically allocating a spectrum is further provided. By way of the present invention, the utilization rate of the guard band and the flexibility in the use of the guard band are improved.
    Type: Application
    Filed: June 12, 2010
    Publication date: October 4, 2012
    Applicant: ZTE CORPORATION
    Inventors: Xinxi Diao, Xiaodong Zhu, Zhengrong Lai, Zhifeng Ma, Guang Yang
  • Patent number: 7948948
    Abstract: The present invention discloses a base band processing module N+M backup method based on switch, is characterized in that: a switch unit is added between RF transceiver unit and base band processing unit, and IQ signal forwarding between base band processing modules of the base band processing unit and RF transceiver modules of the RF transceiver unit is performed by the switch unit; handing over the functions of the base band processing module in trouble to a backup base band processing module by resetting the switch unit and modifying the path of receiving and transmitting IQ signal, therefore realizing the N+M backup for base band processing module. The present invention can effectively realize the N+M backup for the base band processing module by adding a switch unit, therefore solving the technical problem of complexity and high cost for wiring and interfacing when having a large number of BBP and TRX modules.
    Type: Grant
    Filed: December 21, 2004
    Date of Patent: May 24, 2011
    Assignee: ZTE Corporation
    Inventors: Junwen Xu, Zhengrong Lai, Zhonglei Shao
  • Publication number: 20100016021
    Abstract: The present invention discloses a base band processing module N+M backup method based on switch, is characterized in that: a switch unit is added between RF transceiver unit and base band processing unit, and IQ signal forwarding between base band processing modules of the base band processing unit and RF transceiver modules of the RF transceiver unit is performed by the switch unit; handing over the functions of the base band processing module in trouble to a backup base band processing module by resetting the switch unit and modifying the path of receiving and transmitting IQ signal, therefore realizing the N+M backup for base band processing module. The present invention can effectively realize the N+M backup for the base band processing module by adding a switch unit, therefore solving the technical problem of complexity and high cost for wiring and interfacing when having a large number of BBP and TRX modules.
    Type: Application
    Filed: December 21, 2004
    Publication date: January 21, 2010
    Inventors: Junwen Xu, Zhengrong Lai, Zhonglei Shao