Data downloading method and system

A data download and data technology, applied in the Internet field, can solve the problems of data download network bandwidth waste, etc., and achieve the effect of avoiding receiving delay, overcoming unreliable data transmission, and enhancing reliability

Active Publication Date: 2011-10-05
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] The technical problem to be solved by the present invention is to provide a data download method and system, the present invention can enhance the reliability of data download and solve the problem of network bandwidth waste in the data download process

Method used

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  • Data downloading method and system
  • Data downloading method and system

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Embodiment Construction

[0036] The present invention provides a data download method, the core idea of ​​which is: when the client downloads data from the server through the multicast address, if the client misses, loses part of the data or receives damaged data, it can send the data to the client in the same client information list. Other clients request to obtain the data that has not been successfully received. After the requested client receives the request, if it contains the requested data, it will send it to the requesting client, so that the client does not have to wait for the next round of server delivery The data can continue to receive the required data. In addition, the client reports the unsuccessfully received data to the server, and the server counts the data received by all clients, and sends the unsuccessfully received data to the client in the next round of multicast without sending all data.

[0037] It should be noted that the application of the present invention in an IPTV syst...

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Abstract

The present invention discloses a data downloading method and a system. The aforesaid method is as bellow: a server delivers a multicast address and a client information list to a client; a client downloads the data from the server by the multicast address; the server acquires the data which is not be received successfully from the other servers in the client information lists, if the acquired server contains the required data, then the data is sent to the acquiring server. The aforesaid system includes: a server used for delivering a multicast address and a client information list to a client; a client used for receiving the multicast address and the client information list and downloading the data from the server by the multicast address, and acquiring the data which is not be received successfully from the other servers in the client information list or sending the required data to the other requiring clients. The present invention can improve the reliability of the data downloading and solve the waste of network bandwidth during downloading.

Description

technical field [0001] The invention relates to the technical field of the Internet, in particular to a data downloading method and system in the Internet. Background technique [0002] Currently, in the Internet, there are many ways to download remote data to a local storage system. For different application scenarios, there are unicast and multicast methods for data download. The so-called unicast means that when the network is transmitted, the two sides of the communication send data packets in a one-to-one manner. The so-called multicast means that when the network is transmitted, the two sides of the communication use a one-to-many method to send data packets, and its IP address belongs to a specific range. Sending to this IP address will do the trick. A typical representative of the unicast mode is the peer-to-peer technology P2P (peer-to-peer) data download. A typical representative of the multicast mode is the data carousel technology, that is, the data to be dow...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/28
Inventor 商飞鹏
Owner HUAWEI TECH CO LTD
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