Invention Grant
US08526997B2 Frequency control device, frequency control method, and base transceiver station 有权
频率控制装置,频率控制方法和基站收发台

  • Patent Title: Frequency control device, frequency control method, and base transceiver station
  • Patent Title (中): 频率控制装置,频率控制方法和基站收发台
  • Application No.: US12728418
    Application Date: 2010-03-22
  • Publication No.: US08526997B2
    Publication Date: 2013-09-03
  • Inventor: Toshio Kawasaki
  • Applicant: Toshio Kawasaki
  • Applicant Address: JP Kawasaki
  • Assignee: Fujitsu Limited
  • Current Assignee: Fujitsu Limited
  • Current Assignee Address: JP Kawasaki
  • Agency: Katten Muchin Rosenman LLP
  • Priority: JP2009-71948 20090324
  • Main IPC: H04M1/00
  • IPC: H04M1/00
Frequency control device, frequency control method, and base transceiver station
Abstract:
A frequency control device receiving a signal transmitted from each of a plurality of mobile stations, the frequency control device includes a first detecting unit to detect a frequency deviation generated from the signal, a second detecting unit to acquire information about at least a current position or movement of each of the mobile stations as classification information, and a classifying unit to classify mobile stations estimated to be moving in a same moving direction with a same moving speed as a first mobile station based on the classification information. The frequency control device includes a first calculating unit to calculate a first frequency deviations of a signal received from the first mobile station, and a compensation unit to compensate the frequency deviation of the signal received from the first mobile station based on the first frequency deviation.
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