Handover method and apparatus in WLAN environment
First Claim
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1. A handover method in a wireless local area network (WLAN) environment, comprising:
- a) issuing a request for network information on access routers, to an access router of a Basic Service Set that a mobile node belongs to when booted;
b) receiving the network information from the access router and storing the network information as stored network information; and
c) performing a binding update using the stored network information.
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Abstract
Provided are a handover method and apparatus in a WLAN environment and an ICMP message used in such a WLAN environment. The handover method involves a) issuing a request for distributed information table (DIT) information, which is network information on access routers, to an access router of a Basic Service Set that a mobile node belongs to when booted; b) receiving DIT information from the access router and storing the received DIT information; and c) performing binding update using the stored DIT information.
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Citations
17 Claims
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1. A handover method in a wireless local area network (WLAN) environment, comprising:
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a) issuing a request for network information on access routers, to an access router of a Basic Service Set that a mobile node belongs to when booted;
b) receiving the network information from the access router and storing the network information as stored network information; and
c) performing a binding update using the stored network information. - View Dependent Claims (2, 3, 4, 5, 14)
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6. A handover apparatus in a Wireless Local Area Network (WLAN) environment, comprising:
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a network information requesting unit which issues a request for network information on access routers, to an access router of a Basic Service Set that a mobile node belongs to when booted;
a network information storage unit which stores the network information received from the access router; and
a binding update processing unit which carries out binding update using the network information. - View Dependent Claims (7, 8, 9, 10, 15)
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11. An Internet Control Message Protocol (ICMP) message used in a Wireless Local Area Network (WLAN) environment, comprising:
a type field which indicates a request for network information on access routers, to an access router of a Basic Service Set that a mobile node belongs to when booted. - View Dependent Claims (16)
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12. An Internet Control Message Protocol (ICMP) message used in a Wireless Local Area Network (WLAN) environment, comprising a type field which indicates a response to a request for network information;
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a number field which indicates a number of pieces of access router information to be transmitted; and
an access router information field which indicates information on access routers. - View Dependent Claims (13, 17)
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Specification