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Communication control device and communication control method

一种控制部、控制服务器的技术，应用在图像通信、分局提供特种业务的装置、选择性内容分发等方向，能够解决不能应对、消耗通信带宽等问题

Inactive Publication Date: 2012-10-10
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In unicast, in order to ensure a separate communication path between the two communicating parties, when multiple users request the download of the same data, the communication bandwidth of the number of users is consumed
Multicast is the same text communication to the group, and it aims to share the bandwidth among multiple users, but it cannot handle the case of individual data download by users such as the above-mentioned VoD

Method used

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  • Communication control device and communication control method
  • Communication control device and communication control method
  • Communication control device and communication control method

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0049] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0050] figure 1Showing an example of a system employing the present invention, it is connected via a network 5, and the data distribution control server 1 that manages a distribution plan for large-capacity data distribution performs data distribution to multiple users only once by high-reliability multicast communication. The delivery server 2, the data resend server 3 that performs data resend processing according to the data resend request from the user, and a plurality of clients (4-1 to 4-N) that store the distributed data in a hard disk and provide it to the user The structural diagram of the data distribution system constituted. In addition, there are many ways to configure data in each server, for example, in figure 1 Among them, the data sending server 2 and the data resending server 3 hold data respectively, and copy data from the data sending server 2 t...

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Abstract

The invention relates to a communication control device and a communication control method, and provides a data allocation control server and a data allocation system which are used for relieving the load of the server for allocating data to a plurality of users. The data allocation control server is provided with a network interface, a data allocation information database and a control part, wherein the network interface is connected with a network and is communicated with a data transmission server, a data transmission auxiliary server and a client; the data transmission server and the datatransmission auxiliary server transmit the data to the client according to the requirement of the client; the data allocation information database stores data identifiers for identifying allocation data, a data allocation address for assigning an address of the allocation data and data allocation start-up time for expressing the start-up time of data allocation; the control part transmits allocation data session information to the data transmission server and the data transmission auxiliary server according to a data allocation request from the client to control the data transmission server and the data transmission auxiliary server to allocate the data to the client.

Description

technical field [0001] The present invention relates to a communication control device and a communication control method, and in particular to a data distribution control server and a data distribution system that reduce the load on a server that distributes data to a plurality of users. Background technique [0002] Most of communications such as video on demand (VoD) and downloading of incoming mail are performed by unicast. In unicast, when a plurality of users request download of the same data in order to secure a separate communication path between the two communicating parties, the communication bandwidth of the number of users is consumed. Multicast is the same-text communication to a group, and aims at sharing bandwidth among multiple users, but it cannot cope with the case of individual data download by users such as the above-mentioned VoD. [0003] In order to efficiently distribute data to multiple users, for example, the well-known technology "Japanese Patent ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/08H04L29/06H04L12/18H04L45/586
CPCH04L29/08963H04N21/6375H04L67/325H04N21/6408H04N21/6405H04N21/2407H04L67/62
Inventor 吉内英也
Owner HITACHI LTD
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