Data transmission method and system

Abstract

The invention relates to a data transmission method and system, comprising: the sender initiates a data transmission request to a plurality of receivers; the receiver returns response of the data transmission request to the sender, and selects data source from which obtaining each data fragment according to data fragment index information, in order to obtain data in fragment. The sender stores the data to be transmitted to a server after receiving the response of the first data transmission request; and sends the data fragment identifier information contained in the request for obtaining datafragment and the receiver address to the data transmission server; the data transmission server sends the data fragment to the receiver according to data fragment identifier information and receiver address. The invention realizes the process that single user transmits file or multimedia content to a plurality of users simultaneously, in order to effectively avoid bandwidth bottleneck in the sender to use the network bandwidth with maximal efficiency.

Description

technical field [0001] The invention relates to data transmission technology, in particular to a method and system for transmitting data from a single user to multiple users. Background technique [0002] Mobile terminals such as mobile phones have been widely used by people nowadays, and it is also very common to transfer files through mobile terminals. Users often wish to transmit data in their mobile phones to other users. Traditional content transmission adopts a one-to-one transmission method, that is, one end of the user end initiates a transmission request, and the other end agrees to receive it, that is, a connection is established on the network to realize content transmission. In this content transmission mode, if the sender needs to send the same file to multiple receivers, it can only initiate a request to multiple receivers, establish connections with multiple receivers, and independently deliver content to multiple receivers , and because the wireless access b...

AI Technical Summary

Problems solved by technology

However, the existing peer-to-peer networks are only used to download and share data on the network, but have not been applied to a single user to actively transmit data to multiple users at the same time

Moreover, due to bandwidth limitations, it is difficult for the sender to transmit data to multiple people at the same time: when the sender is a mobile terminal, since the mobile terminal needs to communicate with the base station through wireless signals first, and then can access the network, its wireless channel resources Limited, unable to meet the communication connections between a large number of mobile terminals, and is affected by the frequent mobility of terminals on both sides of the communication, wireless signals and network transmission conditions; when the terminal accesses the network in a wired manner, there are still similar problems, such as through For dial-up Internet users, due to their limited access bandwidth, it is difficult to transmit the data in their communication terminals to multiple people at the same time

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