Node search method, node, mobile communication system, and computer program product
First Claim
1. A node search method for searching for a service node for providing a service to a mobile node, in a mobile communication system including a plurality of service nodes and the mobile node, each of the service nodes and the mobile node having a node storage unit configured to store addresses of service nodes, the node search method comprising:
- transmitting a node search packet for searching for the service node from a search node, which searches for the service node, to an address stored in the node storage unit of the search node, returning a node notice packet from at least one of a search packet reception node, which has received the node search packet, and a peripheral node other than the search packet reception node, to the search node in response to the node search packet, detecting the service node on a basis of a returned node notice packet by the search node, and updating the node storage unit of the search node on a basis of a detected service node by the search node.
1 Assignment
0 Petitions
Accused Products
Abstract
A node search method for searching for a service node for providing a service to a mobile node, in a mobile communication system including service nodes and the mobile node, each of the service nodes and the mobile node having a node storage unit configured to store addresses of service nodes. The node search method comprises transmitting a node search packet for searching for the service node from a search node to an address stored in the node storage unit of the search node, returning a node notice packet from at least one of a search packet reception node and a peripheral node, to the search node in response to the node search packet, detecting the service node on a basis of a returned node notice packet, and updating the node storage unit of the search node on a basis of a detected service node.
89 Citations
16 Claims
-
1. A node search method for searching for a service node for providing a service to a mobile node, in a mobile communication system including a plurality of service nodes and the mobile node, each of the service nodes and the mobile node having a node storage unit configured to store addresses of service nodes, the node search method comprising:
-
transmitting a node search packet for searching for the service node from a search node, which searches for the service node, to an address stored in the node storage unit of the search node, returning a node notice packet from at least one of a search packet reception node, which has received the node search packet, and a peripheral node other than the search packet reception node, to the search node in response to the node search packet, detecting the service node on a basis of a returned node notice packet by the search node, and updating the node storage unit of the search node on a basis of a detected service node by the search node.
-
-
2. A node comprising:
-
a node storage unit configured to store addresses of service nodes for providing a service to a mobile node;
a search packet creation unit configured to create a node search packet to be transmitted to an address stored in the node storage unit, in order to search for the service node;
a communication unit configured to communicate, transmit the node search packet created by the search packet creation unit, and receive a node notice packet returned from at least one of a search packet reception node, which has received the node search packet, and a peripheral node other than the search packet reception node in response to a transmitted node search packet;
a detection unit configured to detect the service node on a basis of the node notice packet received by the communication unit; and
an update unit configured to update the node storage unit on a basis of the service node detected by the detection unit. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. A mobile communication system comprising:
-
a search node configured to search for a service node for providing a service to a mobile node by transmitting a node search packet in order to search for the service node;
a search packet reception node configured to receive the node search packet transmitted from the search node; and
a peripheral node other than the search packet reception node, wherein the search node comprises;
a node storage unit configured to store addresses of service nodes;
a search packet creation unit configured to create a node search packet to be transmitted to an address stored in the node storage unit;
a communication unit configured to communicate, transmit the node search packet created by the search packet creation unit, and receive a node notice packet returned from at least one of the search packet reception node and the peripheral node in response to a transmitted node search packet;
a detection unit configured to detect the service node on a basis of the node notice packet received by the communication unit; and
an update unit configured to update the node storage unit on a basis of the service node detected by the detection unit.
-
-
16. A computer program product for causing a computer to function as a node, the computer program product comprising:
-
a first computer program code for causing the computer to store addresses of service nodes for providing a service to a mobile node;
a second computer program code for causing the computer to create a node search packet to be transmitted to a stored address, in order to search for the service node;
a third computer program code for causing the computer to communicate, transmit the node search packet created, and receive a node notice packet returned from at least one of a search packet reception node, which has received the node search packet, and a peripheral node other than the search packet reception node in response to a transmitted node search packet;
a fourth computer program code for causing the computer to detect the service node on a basis of the node notice packet received; and
a fifth computer program code for causing the computer to update the addresses on a basis of a detected service node.
-
Specification