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Apparatus and method of changing access point in wireless network system

  • US 9,313,708 B2
  • Filed: 02/07/2014
  • Issued: 04/12/2016
  • Est. Priority Date: 11/01/2007
  • Status: Expired due to Fees
First Claim
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1. A wireless network-based user terminal, comprising:

  • a probe request packet transmitting unit to transmit a probe request packet through a wireless network;

    a probe response packet receiving unit to receive probe response packets in response to the probe request packet;

    an access point information storage unit to store information on accessible access points based on the received probe response packets;

    a terminal control unit to select and connect to one of the accessible access points, and control transmission of the information on the accessible access points to a selected access point;

    wherein the user terminal transmits the probe request packet in an active scan method by successively transmitting probe request packets to the access points existing in the network,wherein the user terminal transmits new information on accessible access points by periodically searching for surrounding access points, andwherein the probe response packet receiving unit receives a probe response packet including information on a list of recommended access points based on state information of the accessible access points from.

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