| 摘要 |
There is provided a communication system capable of significantly reducing a delay at handover between MAPs without increasing the number of MAPs installed. In this communication system, MAPs (101, 102) issue a router advertisement to ARs (111-126). An MN (107) generates a CO addresses RCoA and LcoA from the router advertisement. The MAPs (101, 102) assign another common router advertisement to ARs (118, 119) of the cell positioned at the boundary of areas for each MAP and the MN (107) generates another RcoA. By movement from the AR (117) to the AR (118), the second RCoA is registered in HA. By movement from the AR (118) to the AR (119), the LCoA is registered in the MAP. While existing in the AR (119), the RCoA of the MAP (102) is registered in the HA. Thus, upon handover, communication is enabled only by registering the LCoA in the MAP. |
