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Radio Communication Device and Radio Communication Method

  • US 20100062773A1
  • Filed: 03/14/2008
  • Published: 03/11/2010
  • Est. Priority Date: 03/16/2007
  • Status: Active Grant
First Claim
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1. A radio communication device including:

  • a radio communication unit configured to perform radio communication by connecting to a first radio communication system and to a second radio communication system different from the first radio communication system; and

    a mobility manager configured to manage mobility from the first radio communication system to the second radio communication system,the radio communication device comprising;

    a communication quality acquirer configured to acquire communication quality of a first radio link established with the first radio communication system;

    a communication quality determination unit configured to determine whether or not the communication quality acquired by the communication quality acquirer exceeds a first threshold or a second threshold corresponding to the communication quality degraded than that indicated by the first threshold; and

    a handover controller configured to control a handover from the first radio communication system to the second radio communication system, whereinwhen the communication quality determination unit determines that the communication quality exceeds the first threshold, the handover controller starts connection with the second radio communication system and establishes a second radio link with the second radio communication system, andwhen the communication quality determination unit determines that the communication quality exceeds the second threshold after the second radio link has been established, the handover controller performs a handover from the first radio link to the second radio link.

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