| US 7,502,346 B2 | ||
| Method of performing handoff in wireless asynchronous transfer mode network | ||
| Sang Youn Han, Seoul (Korea, Republic of) | ||
| Assigned to LG Electronics Inc., Seoul (Korea, Republic of) | ||
| Filed on Dec. 27, 2002, as Appl. No. 10/329,410. | ||
| Claims priority of application No. 10-2001-0088568 (KR), filed on Dec. 29, 2001. | ||
| Prior Publication US 2003/0125029 A1, Jul. 03, 2003 | ||
| Int. Cl. H04Q 7/00 (2006.01) | ||
| U.S. Cl. 370—331 [370/310.2; 455/436] | 5 Claims |
| 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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