Data downloading method and data downloading system

一种数据下载方法及系统

Abstract

本发明涉及一种数据下载方法及系统。其中,数据下载方法用于从蜂窝网下载数据,包括:将要下载的原始数据分成多个原始数据分片,对每个所述原始数据分片进行随机线性编码,得到多个编码分片;第一智能移动设备从蜂窝网的内容服务器下载所述原始数据的部分编码分片;所述第一智能移动设备通过近距离通信,从具有所述原始数据的编码分片的至少一个第二智能移动设备处获取所述原始数据的剩余编码分片,所述剩余编码分片与所述部分编码分片构成所述原始数据的全部编码分片;所述第一智能移动设备对获得的所述原始数据的全部编码分片进行随机线性解码,恢复出所述原始数据。本发明的数据下载方法及系统,减少了智能移动设备的蜂窝网流量使用量。
The invention relates to a data downloading method and a data downloading system. The data downloading method is used for downloading data from a cellular network and comprises the following steps that to-be-downloaded original data are divided into multiple original data fragments, and random linear coding is performed on each original data fragment, so as to obtain multiple coded fragments; a first smart mobile device downloads partial coded fragments of the original data from a content server of the cellular network; the first smart mobile device acquires the residual coded fragments of the original data from at least one second smart mobile device with the coded fragments of the original data by virtue of near field communication, and the residual coded fragments and the partial coded fragments constitute the whole coded fragments of the original data; the first smart mobile device performs random linear decoding on the obtained whole coded fragments of the original data so as to recover the original data. The data downloading method and the data downloading system can be used for reducing the cellular network flow use amount of the smart mobile devices.

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Cited By (2)

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    CN-104580371-AApril 29, 2015北京邮电大学机会网络中文件固定和可变大小分片、传输、副本控制法
    CN-104581818-AApril 29, 2015中国科学院深圳先进技术研究院Traffic exchange method and system based on mobile terminal