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Apparatus and method for reducing interference and saving energy in femto/pico cell of hierarchical cell structure

  • US 8,861,411 B2
  • Filed: 03/08/2011
  • Issued: 10/14/2014
  • Est. Priority Date: 03/08/2010
  • Status: Active Grant
First Claim
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1. A method for managing power of a small base station, the method comprising:

  • receiving from a macro base station, by a power manager, a notify message indicating that a subscribed terminal enters the macro base station that includes a small base station in an off state and including information of the subscribed terminal;

    receiving from the subscribed terminal, by the power manager, transmission power information of the subscribed terminal based on the information of the subscribed terminal;

    determining an uplink path loss of the subscribed terminal based on the transmission power information and the information of the subscribed terminal;

    determining, by the power manager, whether the uplink path loss of the subscribed terminal is supportable by the small base station; and

    when a service is supportable to the subscribed terminal, turning on, by the power manager, the small base station in the off state.

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