Patents by Inventor Xiaopin Li

Xiaopin Li 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).

  • Protection method for forward power saturation in CDMA communication system and its power control apparatus
    Patent number: 6944471
    Abstract: A protection method for forward power saturation in a CDMA communication system and its power control apparatus are provided. The power control apparatus includes a base station (BS) transmitting power control unit, a base station (BS) transceiver and a transmitting power control (TPC) instruction counter. The mobile station includes a mobile station (MS) transceiver, a quality detector for a received signal, a TPC instruction generator. Through a saturation decision process and a saturation protection process, a limited power is distributed to a subscriber whose communication quality actually deteriorates and a subscriber whose communication quality deteriorates severely due to deep fading is rapidly compensated. Meanwhile, the protection method and control apparatus are capable of balancing the power and providing average power distribution among subscribers who need power increasing urgently.
    Type: Grant
    Filed: September 23, 2002
    Date of Patent: September 13, 2005
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Yanmin Qin, Xiaopin Li, Xu Fu
  • Protection method for forward power saturation in CDMA communication system and its power control apparatus
    Publication number: 20030087661
    Abstract: A protection method for forward power saturation in a CDMA communication system and its power control apparatus are provided. The power control apparatus includes a base station (BS) transmitting power control unit, a base station (BS) transceiver and a transmitting power control (TPC) instruction counter. The mobile station includes a mobile station (MS) transceiver, a quality detector for a received signal, a TPC instruction generator. Through a saturation decision process and a saturation protection process, a limited power is distributed to a subscriber whose communication quality actually deteriorates and a subscriber whose communication quality deteriorates severely due to deep fading is rapidly compensated. Meanwhile, the protection method and control apparatus are capable of balancing the power and providing average power distribution among subscribers who need power increasing urgently.
    Type: Application
    Filed: September 23, 2002
    Publication date: May 8, 2003
    Inventors: Yanmin Qin, Xiaopin Li, Xu Fu