Efficient utilization of cache servers in mobile communication system
First Claim
1. A data center for use in a mobile communication system that includes mobile phones, a radio access network, and a core network, wherein the data center communicates with an external network provided outside the mobile communication system, comprising:
- an individual storage unit having storage areas for the respective mobile phones;
a shared storage unit having a storage area for sharing by the mobile phones;
a shared/individual determining unit configured to receive data requested by at least one of the mobile phones from an external node of the external network and to store the received data in one of the individual storage unit and the shared storage unit that is selected according to predetermined criteria;
a data arrangement information generating unit configured to generate a data arrangement list according to statistics of the received data and predetermined cache data arrangement conditions, the predetermined cache data arrangement conditions being information about cache servers of the radio access network and cache servers of the core network; and
a unit configured to transmit an instruction signal to at least one of the shared storage unit and the individual storage unit according to the data arrangement list, so that the data received by the data center from the external node of the external network provided outside the mobile communication system are transferred from the at least one of the shared storage unit and the individual storage unit of the data center to a cache server provided on the core network or a cache server provided on the radio access network.
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Accused Products
Abstract
A data center includes an individual storage unit having storage areas for respective user apparatuses, a shared storage unit having a storage area for sharing by the user apparatuses, a unit configured to store data received from an external node in one of the individual storage unit and the shared storage unit that is selected according to predetermined criteria, a unit configured to generate a data arrangement list according to statistics of the received data and predetermined cache data arrangement conditions, and a unit configured to transmit an instruction signal to at least one of the shared storage unit and the individual storage unit according to the data arrangement list to cause data stored in the at least one of the shared storage unit and the individual storage unit to be transferred to a cache server provided on a core network or on a radio access network.
16 Citations
15 Claims
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1. A data center for use in a mobile communication system that includes mobile phones, a radio access network, and a core network, wherein the data center communicates with an external network provided outside the mobile communication system, comprising:
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an individual storage unit having storage areas for the respective mobile phones; a shared storage unit having a storage area for sharing by the mobile phones; a shared/individual determining unit configured to receive data requested by at least one of the mobile phones from an external node of the external network and to store the received data in one of the individual storage unit and the shared storage unit that is selected according to predetermined criteria; a data arrangement information generating unit configured to generate a data arrangement list according to statistics of the received data and predetermined cache data arrangement conditions, the predetermined cache data arrangement conditions being information about cache servers of the radio access network and cache servers of the core network; and a unit configured to transmit an instruction signal to at least one of the shared storage unit and the individual storage unit according to the data arrangement list, so that the data received by the data center from the external node of the external network provided outside the mobile communication system are transferred from the at least one of the shared storage unit and the individual storage unit of the data center to a cache server provided on the core network or a cache server provided on the radio access network. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A cache server for use on a radio access network or a core network in a mobile communication system that includes mobile phones, the radio access network, the core network, and a data center, wherein the data center communicates with an external network provided outside the mobile communication system, and wherein the data center includes:
- an individual storage unit having storage areas for the respective mobile phones;
a shared storage unit having a storage area for sharing by the mobile phones;
a shared/individual determining unit configured to obtain data requested by at least one of the mobile phones from an external node of the external network and to store the received data in one of the individual storage unit and the shared storage unit that is selected according to predetermined criteria; and
a data arrangement information generating unit configured to generate a data arrangement list according to statistics of the received data and predetermined cache data arrangement conditions, the predetermined cache data arrangement conditions being information about cache servers of the radio access network and cache servers of the core network, said cache server comprising;a cache storage unit configured to receive data stored in at least one of the shared storage unit and the individual storage unit from the data center according to the data arrangement list, so that the data obtained by the data center from the external node of the external network provided outside the mobile communication system are transferred from the at least one of the shared storage unit and the individual storage unit of the data center to the cache storage unit provided on the core network or provided on the radio access network; and a unit configured to transmit data stored in the cache storage unit to a mobile phone in response to a request from the mobile phone. - View Dependent Claims (14)
- an individual storage unit having storage areas for the respective mobile phones;
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15. A cache management method for use in a data center of a mobile communication system that includes mobile phones, a radio access network, and a core network, wherein the data center communicates with an external network provided outside the mobile communication system, comprising:
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receiving data requested by at least one of the mobile phones from an external node of the external network; storing the received data received from the external node of the external network in one of an individual storage unit and a shared storage unit that is selected according to predetermined criteria, the individual storage unit having storage areas for the respective mobile phones, and the shared storage unit having a storage area for sharing by the mobile phones; generating a data arrangement list according to statistics of the received data and predetermined cache data arrangement conditions, the predetermined cache data arrangement conditions being information about cache servers of the radio access network and cache servers of the core network; and transmitting an instruction signal to at least one of the shared storage unit and the individual storage unit according to the data arrangement list, so that the data received by the data center from the external node of the external network provided outside the mobile communication system are transferred from the at least one of the shared storage unit and the individual storage unit of the data center to a cache server provided on the core network or a cache server provided on the radio access network.
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Specification