INTEGRATED WEB CACHE

• US 20090129319A1
• Filed: 01/26/2009
• Published: 05/21/2009
• Est. Priority Date: 10/21/2002
• Status: Active Grant

• Current Assignee: Sound View Innovations, LLC (Sound View Innovation Holdings, LLC)
• Original Assignee: Alcatel-Lucent SA (Nokia Corporation)
• Inventors: Buddhikot, Milind M., Miller, Scott C., Salgarelli, Luca, Han, Seung-Jae, Lee, Yui-Wah, Chandranmenon, Girish P.
• Granted Patent: US 8,174,982 B2
• Time in Patent Office: Days
• US Class Current: 370/328
• CPC Class Codes: H04L 12/2856 Access arrangements, e.g. Internet access asynchronous transfer mode networks H04L12/5601; broadband local area networks H04L12/2801; optical access or distribution networks H04Q11/0067; access to open networks H04L12/5691; digital subscriber line end-user equipment and bit-level processing of data on a PSTN-based network H04M11/00; home network gateways H04L12/2834; wireless access networks H04W
• CPC Class Codes: H04L 61/5014 using dynamic host configuration protocol [DHCP] or bootstrap protocol [BOOTP]
• CPC Class Codes: H04L 63/02 for separating internal from external traffic, e.g. firewalls
• CPC Class Codes: H04L 63/08 for authentication of entities cryptographic mechanisms or cryptographic arrangements for entity authentication H04L9/32
• CPC Class Codes: H04L 63/0869 for achieving mutual authentication cryptographic mechanisms or cryptographic arrangements for mutual authentication H04L9/3273
• CPC Class Codes: H04L 63/10 for controlling access to devices or network resources
• CPC Class Codes: H04L 67/2871 Implementation details of single intermediate entities
• CPC Class Codes: H04L 67/306 User profiles
• CPC Class Codes: H04L 67/568 Storing data temporarily at an intermediate stage, e.g. caching
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]
• CPC Class Codes: H04W 36/0011 for data sessions of end-to-end connection
• CPC Class Codes: H04W 36/0019 adapted for mobile IP [MIP]
• CPC Class Codes: H04W 80/04 Network layer protocols, e.g. mobile IP [Internet Protocol]
• CPC Class Codes: H04W 88/16 Gateway arrangements

Abstract

A gateway for mobile communications comprises a cache for storing network data recently downloaded from a network, a foreign agent, and a packet filter that directs requests for the network data from a mobile node to the cache. The packet filter directs the requested network data from the cache to the mobile node by way of the foreign agent, without forwarding the requested network data to a home agent of the mobile node.

Claims

1. A gateway for mobile communications, comprising:

a cache for storing network data recently downloaded from a network; and

a first foreign agent collocated with the cache, wherein, upon receiving a request from a mobile node for a portion of the network data, the cache providing the requested portion of the network data to the mobile node via the first foreign agent without forwarding the requested portion of the network data to a home agent of the mobile node.

2. The gateway of claim 1, wherein, upon receiving a request from the mobile node for other network data, the cache downloading the other network data from the network and providing the requested other network data to the mobile node via the first foreign agent without forwarding the requested other network data to the home agent of the mobile node.

3. The gateway of claim 1, further comprising:

a packet filter configured to direct the requested portion of the network data from the cache to the first foreign agent.

4. The gateway of claim 3, wherein the packet filter is further configured to direct requests of the mobile node to the cache.

5. The gateway of claim 1, wherein when the mobile node moves from the proximity of the gateway to the proximity of a second gateway having associated with it a second foreign agent, the requested portion of the network data is provided to the mobile node from the cache via the second foreign agent without being forwarded to the home agent of the mobile node or to the first foreign agent.

6. The gateway of claim 5, further comprising:

a packet filter configured to direct the requested portion of the network data from the cache to the mobile node via the second foreign agent without forwarding the requested portion of network data to the home agent of the mobile node or the first foreign agent.

7. The method of claim 5, further comprising:

a storage device adapted to store a state of the mobile node, wherein the state of the mobile node is updated in response to the mobile node being proximate to the second gateway.

8. The gateway of claim 7, wherein the state of the mobile node is updated in response to a message received from the second gateway.

9. The gateway of claim 5, wherein the packet filter adds at least one packet-mangling rule to a set of firewall policies associated with the mobile node to direct mobile node requests to the cache and requested data to the first foreign agent.

10. The gateway of claim 3, wherein the packet filter is further configured to perform multi-level filtering.

11. The gateway of claim 3, wherein the packet filter is further configured to perform network layer filtering.

12. The gateway of claim 11, wherein the packet filter is further configured to perform one of transport layer filtering and application layer filtering.

13. A mobile network communications method comprising:

caching network data recently downloaded from a network to a cache;

receiving a request for a portion of the network data from a mobile node;

directing the request to the cache; and

while the mobile node is proximate a gateway associated with the cache, directing the requested portion of the network data from the cache to the mobile node via a foreign agent collocated with the cache without forwarding the requested portion of the network data to a home agent of the mobile node.

14. The method of claim 13, further comprising:

receiving a request for other network data from the mobile node;

downloading the requested other network data from the network to the cache; and

while the mobile node is proximate the gateway associated with the cache, directing the requested other network data from the cache to the mobile node via the foreign agent without forwarding the requested other network data to the home agent of the mobile node.

15. The method of claim 13, further comprising:

storing a state of the mobile node at the gateway associated with the cache.

16. The method of claim 15, further comprising:

updating the state of the mobile node when the mobile node moves from the proximity of the first gateway to the proximity of a second gateway having associated with it a second foreign agent; and

directing the portion of the requested network data from the cache to the mobile node via the second foreign agent without forwarding the requested network data to the first foreign agent or the home agent of the mobile node.

17. The method of claim 16, further comprising updating the state of the mobile node in response to a message from the second gateway.

18. A computer readable storage medium storing a computer program which, when executed by a computer, causes the computer to perform a mobile network communications method comprising:

caching network data recently downloaded from a network to a cache;

receiving a request for a portion of the network data from a mobile node;

directing the request to the cache; and

while the mobile node is proximate a gateway associated with the cache, directing the requested portion of the network data from the cache to the mobile node via a foreign agent collocated with the cache without forwarding the requested portion of the network data to a home agent of the mobile node.

19. The computer readable medium of claim 18, wherein the method further comprises:

storing a state of the mobile node at the gateway associated with the cache.

updating the state of the mobile node when the mobile node moves from the proximity of the first gateway to the proximity of a second gateway having associated with it a second foreign agent; and

directing the portion of the requested network data from the cache to the mobile node via the second foreign agent without forwarding the requested portion of the network data to the first foreign agent or the home agent of the mobile node.

20. The computer readable medium of claim 19, wherein the method further comprises:

updating the state of the mobile node in response to a message from the second gateway.