Cache synchronization system, cache synchronization method and apparatus thereof
First Claim
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1. A local cache, comprising:
- a content storage unit configured to store at least a part of at least one content;
a cache position manager configured to manage position information of one or more local caches; and
a synchronization unit configured to set a synchronization range for the at least one content, and to perform synchronization of the at least one content such that the at least one content is made available at another local cache located in the set synchronization range on the basis of the position information of the one or more local caches.
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Abstract
Disclosed are a cache synchronization system, a cache synchronization method and a local cache to perform synchronization. The local cache is configured to determine whether to perform synchronization for specific content on the basis of synchronization policy information, if it is determined that synchronization is to be performed, to set a dispersion parameter that defines a synchronization range for the specific content according to the synchronization policy information, and to transmit synchronization information about the specific content, which includes the dispersion parameter, to at least one neighboring local cache.
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Citations
16 Claims
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1. A local cache, comprising:
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a content storage unit configured to store at least a part of at least one content; a cache position manager configured to manage position information of one or more local caches; and a synchronization unit configured to set a synchronization range for the at least one content, and to perform synchronization of the at least one content such that the at least one content is made available at another local cache located in the set synchronization range on the basis of the position information of the one or more local caches. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A cache synchronization method performed by a local cache among a plurality of local caches to provide at least one content to one or more user terminals located in the corresponding areas, the cache synchronization method comprising:
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determining whether to perform synchronization for specific content on the basis of synchronization policy information; if it is determined that synchronization is performed, setting a dispersion parameter that defines a synchronization range for the specific content according to the synchronization policy information; and transmitting synchronization information about the specific content, which includes the dispersion parameter, to a neighboring local cache. - View Dependent Claims (13)
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14. A cache synchronization method performed by a local cache among a plurality of local caches to provide content to at least user terminal located in the corresponding areas, comprising:
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receiving synchronization information about specific content, which includes a dispersion parameter that defines a synchronization range, from another local cache; storing the received synchronization information such that the specific content is provided to the at least one user terminal; reducing the value of the dispersion parameter by a predetermined unit value, comparing the value of the reduced dispersion parameter with a first reference value, and determining whether synchronization is performed according to the comparison result; and transmitting synchronization information including the reduced dispersion parameter to a neighboring local cache. - View Dependent Claims (15, 16)
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Specification