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US 7,072,314 B2Granted
Roaming in a communication network
AssigneeIntel Corporation
InventorsYlian Saint-Hilaire, James L. Jason, Jr., Frederick William Strahm, Erik J. Johnson
Life of this patent
Estimating the term…
Abstract
Communicating over a network includes establishing a communication path between a mobile-device in a first communication area and a server through a home-agent, and maintaining the communication path through the home agent when the mobile-device moves to a second-communication-area.
Claims19
A method comprising:
- establishing a communication path between a mobile-device in a first-communication-area and a server through a home-agent, the mobile-device initially assigned a set of addresses when registered with the home-agent including a first real-address and a first home-address, with the home-agent using the assigned addresses to track the mobile-device, wherein establishing the free communication path further comprises:
- generating a request from the mobile device, the request comprising a request-layer including the first home-address of the mobile device and a server-address of the server;
- encapsulating the request-layer with a roaming-layer including the first real-address of the mobile-device and a home-agent-address;
- communicating the encapsulated request-layer to the home-agent;
- maintaining the communication path through the home-agent when the mobile-device moves to a second-communication-area, with the mobile-device requesting a new address from an address server and communicating the new address to the home-agent;
- and
- using respective program layers below transmission control protocol/internet protocol (TCP/IP) program layers in the mobile-device and the home agent to establish the communication path and maintain the communication path.
4 more elements
A communication system comprising:
- a home-agent configured to determine network points to which data should be forwarded;
- an address server;
- and
- a mobile device comprising a processor configured to:
- establish a communication path between the mobile-device and a server in a first-communication-area, through the home-agent, the mobile-device initially being assigned a set of addresses when registered with the home-agent including a first real-address and a first home-address, the home-agent using the assigned addresses to track the mobile-device, with the mobile-device further configured to:
- generate a request from the mobile device, the request comprising a request-layer including the first home-address of the mobile device and a server-address of the server;
- encapsulate the request-layer with a roaming-layer including the first real-address of the mobile-device and a home-agent-address;
- communicate the encapsulated request-layer to the home-agent;
- and maintain the communication path through the home-agent when the mobile-device moves to a second-communication-area by requesting a new address from the address server and communicating the new address to the home-agent;
- and
- use respective program layers below transmission control protocol/internet protocol (TCP/IP) program layers in the mobile-device and the home agent to establish the communication path and maintain the communication path.
8 more elements
A computer program product residing on a computer-readable medium and comprising computer instructions for causing a processor-based device to:
- establish an interruption-free communication path between a mobile-device in a first-communication-area and a server through a home-agent, the mobile-device initially being assigned a set of addresses when registered with the home-agent including a first real-address and a first home-address, the home-agent using the assigned addresses to track the mobile-device, with instructions to establish comprising instructions to:
- generate a request from the mobile device, the request comprising a request-layer including the first home-address of the mobile device and a server-address of the server;
- encapsulate the request-layer with a roaming-layer including the first real-address of the mobile-device and a home-agent-address;
- communicate the encapsulated request-layer to the home-agent based on the home-agent-address;
- maintain the communication path through the home-agent when the mobile-device moves to a second-communication-area, wherein the instructions that cause the processor-based device to maintain include instructions that cause the mobile-device to request a new address from an address server and communicate the new address to the home-agent;
- and
- use respective program layers below transmission control protocol/internet protocol (TCP/IP) program layers in the mobile-device and the home agent to establish the communication path and maintain the communication path.
4 more elements
Dependencies are inferred from the claim text.