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Method of performing handoff in wireless asynchronous transfer mode network

  • US 7,502,346 B2
  • Filed: 12/27/2002
  • Issued: 03/10/2009
  • Est. Priority Date: 12/29/2001
  • Status: Expired due to Fees
First Claim
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1. A method of performing a handoff in a wireless asynchronous transfer mode (WATM) network, comprising:

  • dividing a network configuration into an intra domain having an intra domain server for processing the handoff inside a cell and an inter domain having an inter domain server for connecting subcells located on a bound area between the cell and the another cell;

    connecting the subcells to form one cell by the inter domain server;

    transmitting a re-routing path setup request message from the intra domain server to the inter domain server when an additional procedure for one crust cell is completed according to a moving path of a terminal;

    after the inter domain server performs an ATM path setup procedure for the added crust cell, transmitting a re-routing path setup completion acknowledgement message to the intra domain server; and

    performing a soft handoff as the terminal successively moves through the inter domain region.

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