Patents by Inventor Guoxin Zhao

Guoxin Zhao 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).

  • Base station system
    Patent number: 7962176
    Abstract: The present invention discloses a base station system, including an indoor part and a remote RF subsystem (RRS). The indoor part includes a RIU, a CCU, a BBU, a GPSU and a local interface unit. The RRS includes a remote interface unit, a RF transceiver unit (TRU) and an antenna. The local interface unit and the remote interface unit are for signal intercommunicating between the indoor part of the base station and the RSS. The TRU is a RF transceiver module of the conventional RFU, for amplifying an analog RF signal from the remote interface unit and transmitting the signal to the antenna. By flexibly selecting between an optical cable and an If cable, the interface unit of the present invention provides a digital baseband remote manner and an IF remote manner.
    Type: Grant
    Filed: December 29, 2005
    Date of Patent: June 14, 2011
    Assignee: China Academy of Telecommunications Technology
    Inventors: Shihe Li, Tiezhu Xu, Hongbo Wang, Liwei Wang, Xiaozhou Chen, Xian Liu, Guoxin Zhao, Jianfeng Wu
  • Base Station System
    Publication number: 20080317464
    Abstract: The present invention discloses a base station system, including an indoor part and a remote RF subsystem (RRS). The indoor part includes a RIU, a CCU, a BBU, a GPSU and a local interface unit. The RRS includes a remote interface unit, a RF transceiver unit (TRU) and an antenna. The local interface unit and the remote interface unit are for signal intercommunicating between the indoor part of the base station and the RSS. The TRU is a RF transceiver module of the conventional RFU, for amplifying an analog RF signal from the remote interface unit and transmitting the signal to the antenna. By flexibly selecting between an optical cable and an If cable, the interface unit of the present invention provides a digital baseband remote manner and an IF remote manner.
    Type: Application
    Filed: December 29, 2005
    Publication date: December 25, 2008
    Applicant: DA TANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD.
    Inventors: Shihe Li, Tiezhu Xu, Hongbo Wang, Liwei Wang, Xiaozhou Chen, Xian Liu, Guoxin Zhao, Jianfeng Wu