System for management of cacheable streaming content in a packet based communication network with mobile hosts
First Claim
1. A method of managing cacheable streaming content, the method comprising:
- a) serving a content stream to a mobile node in a first subnet with a first caching proxy in response to a request;
b) in response to the mobile node relocating to a second subnet, handing off the request to serve the streaming content from the first caching proxy to a second caching proxy; and
c) continuing to serve the request for the content stream to the mobile node with the second caching proxy.
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Accused Products
Abstract
A cache handoff system for managing cacheable streaming content requested by a mobile node within a network architecture is disclosed. The network architecture includes a first subnet and a second subnet. The cache handoff system includes a first caching proxy operable in the first subnet to supply a content stream in response to a request of the mobile node operable in the first subnet. In addition, the cache handoff system includes a second caching proxy operable in the second subnet. The first caching proxy may initiate a cache handoff of the request to the second caching proxy when the mobile node relocates to the second subnet. The second caching proxy may seamlessly continue to supply the requested content stream as a function of the cache handoff.
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Citations
47 Claims
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1. A method of managing cacheable streaming content, the method comprising:
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a) serving a content stream to a mobile node in a first subnet with a first caching proxy in response to a request;
b) in response to the mobile node relocating to a second subnet, handing off the request to serve the streaming content from the first caching proxy to a second caching proxy; and
c) continuing to serve the request for the content stream to the mobile node with the second caching proxy. - View Dependent Claims (2, 3, 4, 5)
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6. A method of managing cacheable streaming content, the method comprising:
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a) supplying a content stream with a caching proxy in response to a request of a mobile node located in a first subnet;
b) caching the content stream supplied by the caching proxy;
c) handing off the request to another caching proxy when the mobile node relocates to a second subnet;
d) discontinuing caching of the content stream with the caching proxy; and
e) quantizing the fragment of the content stream cached in the caching proxy to achieve a uniform size. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13)
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14. A method of managing cacheable streaming content, the method comprising:
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a) subscribing a caching proxy to a mobility status of a mobile node as a function of a request for a content stream by the mobile node and the logical proximity of the caching proxy to the location of the mobile node;
b) notifying the caching proxy that the mobile node has moved to a new location;
c) identifying a target caching proxy in close logical proximity to the new location;
d) initiating a cache handoff of the request for the content stream from the caching proxy to the target caching proxy; and
e) subscribing the target caching proxy to the mobility status of the mobile node. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
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22. A cache handoff system for managing cacheable streaming content request by a mobile node within a network architecture comprising a first subnet and a second subnet, the cache handoff system comprising:
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a first caching proxy operable in the first subnet to supply a content stream responsive to a request of a mobile node operable in the first subnet; and
a second caching proxy operable in the second subnet, the first caching proxy operable to initiate a cache handoff of the request to the second caching proxy following relocation of the mobile node to the second subnet, the second caching proxy operable to seamlessly continue supply of the requested content stream as a function of the cache handoff. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30)
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31. In a cache handoff system for managing cacheable streaming content requested by a mobile node within a computer network, a caching proxy serving first portion of the computer network comprising:
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a streaming content server operable to supply a content stream to the mobile node in the computer network; and
a request monitor operable (a) to receive the request from the mobile node to initiate the supply of the content stream;
(b) following the mobile node relocating from the first portion of the computer network to a second portion of the computer network, to initiate a cache handoff to a second caching proxy serving the second portion of the computer network to allow the second caching proxy to continue the supply of the content stream to the mobile node; and
(c) following the mobile node relocating from the second portion of the computer network to the first portion of the computer network, to receive a cache handoff from the second proxy, so as to continue a supply of a content stream then served from the second caching proxy. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47)
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Specification