Methods and apparatus for using a paging and location server to support session signaling
First Claim
1. A communications method comprising:
- operating a paging and location server to receive a first registration message from an access node, the registration message including an end node session signaling server address and an access node session signaling server address, the access node session server address being included in a forwarding address field of said first registration message; and
operating the paging and location server to store registration information associating the end node session signaling server address with the access node session signal server address.
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Accused Products
Abstract
Session signaling register message transmission methods and apparatus well suited for use in a communication system which supports mobile nodes capable of moving between domains and access nodes in a domain are described. Broadcasting of session signaling register messages is supported to reduce the number of registration messages which need to be transmitted between a mobile node and an access node. A paging and location server is used to reduce the number of session signaling register messages transmitted between domains. A visiting node registers with a paging and location server. The session signaling address of the paging and location server being used by a visiting mobile node is registered with the visiting node'"'"'s home session signaling server. As the visiting node moves between access nodes in the visited domain the paging and location server it uses remains the same eliminating the need to update the home session signaling servers.
165 Citations
29 Claims
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1. A communications method comprising:
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operating a paging and location server to receive a first registration message from an access node, the registration message including an end node session signaling server address and an access node session signaling server address, the access node session server address being included in a forwarding address field of said first registration message; and
operating the paging and location server to store registration information associating the end node session signaling server address with the access node session signal server address. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A communications method, comprising:
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operating a first access node to transmit a first session signaling server registration message to a paging and location server to cause the paging and location server to store registration information associating session signaling address information corresponding to an end node with session signaling server address information corresponding to an access node; and
operating said access node to transmit a second session signaling server registration message to a home session signaling server node to cause the session signaling server node to store registration information associating session signaling address information corresponding to said end node and with session signal address information corresponding to said paging and location server. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A communications system, comprising:
a paging and location server, the paging and location server including;
i. means for receiving session signaling registration messages; and
ii. memory including session signaling registration information associating each of a plurality of end node session signaling server addresses with a corresponding access node session signaling server address. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23)
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24. A method of storing and updating session signaling registration information, the method comprising the steps of:
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registering a session signaling address of a mobile node with a paging and location server in a visited domain when said mobile node visits the visited domain; and
registering the session signaling address of said paging and location server in said visited domain with a home session signaling server located in a home domain of said mobile node, said registering including storing information associating a session signaling server address of said mobile node with a session signaling address of said paging and location server. - View Dependent Claims (25, 26, 27, 28, 29)
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Specification