HOME NETWORK SYSTEM AND MOBILITY ANCHOR ALLOCATION METHOD USED IN THE HOME NETWORK SYSTEM
First Claim
1. A network system, comprising:
- a plurality of mobility anchors that accommodate a plurality of mobile nodes; and
an anchor allocation unit that allocates one of said plurality of mobility anchors to each of said mobile nodes, whereineach of said mobility anchors registers a corresponding relationship between a home address assigned to each of said mobile nodes on a home network to which each of said mobile nodes accommodated belongs and a care-of address assigned to each of said mobile nodes on an external network to which each of said mobile nodes connects at its mobility destination, and transfer said packet to each of said mobile nodes based on the corresponding relationship when each of said mobile nodes is connected to said external network and a packet destined to each of said mobile nodes is received, andsaid anchor allocation unit allocates a same mobility anchor to mobile nodes that frequently communicate with each other.
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Abstract
Provided is a home network system in which an appropriate mobility anchor is allocated for a mobile node and the number of mobility anchors can be reduced. A subscriber information accumulation server (14) accumulates first communication load prediction data for each time of a mobile node (32). An anchor information accumulation server (15) accumulates second communication load prediction load for each time of each mobility anchor (11). When “a mobility anchor allocation request” is transmitted from the mobile node (32) to an anchor allocation server (13), the anchor allocation server (13) adds the first communication load prediction data and the second communication load prediction load data so as to obtain third communication load prediction data. Among a plurality of mobility anchors (11), a mobility anchor in which the third communication load prediction data is not greater than the load upper limit value at all the times and the maximum value of the second communication load prediction data is minimum is selected and allocated.
10 Citations
18 Claims
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1. A network system, comprising:
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a plurality of mobility anchors that accommodate a plurality of mobile nodes; and an anchor allocation unit that allocates one of said plurality of mobility anchors to each of said mobile nodes, wherein each of said mobility anchors registers a corresponding relationship between a home address assigned to each of said mobile nodes on a home network to which each of said mobile nodes accommodated belongs and a care-of address assigned to each of said mobile nodes on an external network to which each of said mobile nodes connects at its mobility destination, and transfer said packet to each of said mobile nodes based on the corresponding relationship when each of said mobile nodes is connected to said external network and a packet destined to each of said mobile nodes is received, and said anchor allocation unit allocates a same mobility anchor to mobile nodes that frequently communicate with each other. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A network device disposed in a network system that comprises a plurality of mobility anchors accommodating a plurality of mobile nodes;
- said network device comprising;
an anchor allocation unit that allocates one of said plurality of mobility anchors to each of said mobile nodes, wherein each of said mobility anchors registers a corresponding relationship between a home address assigned to each of said mobile nodes on a home network to which each of said mobile nodes accommodated belongs and a care-of address assigned to each of said mobile nodes on an external network to which each of said mobile nodes connects at its mobility destination, and transfer said packet to each of said mobile nodes based on the corresponding relationship when each of said mobile nodes is connected to said external network and a packet destined to each of said mobile nodes is received, and said anchor allocation unit allocates a same mobility anchor to mobile nodes that frequently communicate with each other. - View Dependent Claims (8, 9, 10, 11, 12)
- said network device comprising;
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13. A network method, comprising:
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by a plurality of mobility anchors, accommodating a plurality of mobile nodes; and by an anchor allocation unit, allocating one of said plurality of mobility anchors to each of said mobile nodes, wherein each of said mobility anchors registers a corresponding relationship between a home address assigned to each of said mobile nodes on a home network to which each of said mobile nodes accommodated belongs and a care-of address assigned to each of said mobile nodes on an external network to which each of said mobile nodes connects at its mobility destination, and transfer said packet to each of said mobile nodes based on the corresponding relationship when each of said mobile nodes is connected to said external network and a packet destined to each of said mobile nodes is received, and said anchor allocation unit allocates a same mobility anchor to mobile nodes that frequently communicate with each other. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification