METHOD, SYSTEM AND COMPUTER-READABLE RECORDING MEDIUM FOR TRANSMITTING CONTENTS WITH SUPPORTING HAND-OVER
First Claim
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1. A method of delivering contents enabling hand-over, comprising:
- (a) transmitting, by a decompressor, a switching request to a compression mode or a cache mode to a compressor, based on the degree of matching between a content stored in a dictionary of the decompressor and a content transmitted from the compressor to the decompressor;
(b) transmitting, by the decompressor, contents to a client based on the contents stored in the dictionary of the decompressor based on the transfer mode; and
(c) performing, by the decompressor, one of operations which i) stopping the transmission of the contents to the client or ii) transmitting the contents stored in the dictionary of the decompressor by tunneling based on the transfer mode when hand-over occurs on the client.
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Abstract
According to one aspect of the present invention, the content transmission method supporting handover includes: (a) compressing, at a compressor, content transmitted from a server and transmitting the compressed content to a decompressor if a request for changing to a compression mode is received; and (b) transmitting, at a compressor, content transmitted from a server without compression to a client or another decompressor connected to the client after a handover occurs if the handover occurs at the client.
5 Citations
18 Claims
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1. A method of delivering contents enabling hand-over, comprising:
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(a) transmitting, by a decompressor, a switching request to a compression mode or a cache mode to a compressor, based on the degree of matching between a content stored in a dictionary of the decompressor and a content transmitted from the compressor to the decompressor; (b) transmitting, by the decompressor, contents to a client based on the contents stored in the dictionary of the decompressor based on the transfer mode; and (c) performing, by the decompressor, one of operations which i) stopping the transmission of the contents to the client or ii) transmitting the contents stored in the dictionary of the decompressor by tunneling based on the transfer mode when hand-over occurs on the client. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 14, 15, 18)
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10. A method for delivering contents enabling hand-over, comprising:
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(a) receiving, by a compressor, a switching request to a compression mode or a cache mode from the decompressor, based on the degree of matching between a content stored in a dictionary of the decompressor and a content transmitted from the compressor to the decompressor; (b) by the compressor, stopping to transmit contents that are received from a server to the decompressor based on the transfer mode, or compressing and then transmitting contents that are received from the server to the decompressor; and (c) performing, by the compressor, one of operations which i) transmitting contents received from the server to the client or another decompressor connected to the client after hand-over, or ii) controlling cached contents that are stored in the dictionary of the decompressor to be transmitted to the client or another decompressor connected to the client by tunneling based on the transfer mode when hand-over occurs on the client. - View Dependent Claims (11, 12, 13)
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16. The decompressor of contents delivery system for enabling hand-over, comprising:
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a compression processor of the decompressor configured to; transmit a switching request to either a compression mode or a cache mode to a compressor, based on the degree of matching between a content stored in a dictionary of the decompressor and a content transmitted from the compressor to the decompressor, and transmit the contents corresponding to contents stored in the dictionary of the decompressor to the client based on the transfer mode; and a hand-over processor of the decompressor configured to; perform one of operations, which is stopping the transmission of contents to the client or transmitting cached contents stored in the dictionary of the decompressor by tunneling based on the transfer mode when hand-over occurs on the client.
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17. The compressor of contents delivery system for enabling hand-over, comprising;
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a compression processor of the compressor configured to; receive a switching request to a compression mode or a cache mode from the decompressor, based on the degree of matching between a content stored in a dictionary of the decompressor and a content transmitted from the compressor to the decompressor, and stop transmitting contents received from a server to a client or transmit contents received from server by compressing the contents to the decompressor, based on the transfer mode; and a hand-over processor of the compressor configured to; perform one of operations, which is transmitting contents received from the server to the client or to another decompressor connected to the client after hand-over, or controlling to allow the cached contents stored in a dictionary of the decompressor to be transmitted to another decompressor by tunneling based on the transfer mode when hand-over occurs on the client.
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Specification