Method and device for sending unicast data package

Abstract

The invention discloses a method and device for sending a unicast data package. The method comprises the steps that when a processor confirms that a unicast data package needs to be sent, sending duration accumulative information, corresponding to each node, of the unicast data package is obtained, when the condition that sending duration accumulative information of a current node is the minimum value among the sending duration accumulative information of the nodes in a cache region is confirmed by the processor according to the sending duration accumulative information, the current node is triggered to send the unicast data package to be sent. The problem that whole throughput capacity of a network is decreased due to that fact that the channel occupied time of low-velocity users is extremely long and thus the channel occupied time of high-velocity users is occupied in the relevant art is solved so that the processor can dynamically choose a sending chance of a data package of each node according to different network conditions. The channel occupied time of low-velocity users and the channel occupied time of high-velocity users are balanced, and the work performance of the processor is improved.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and device for sending unicast data packets. Background technique [0002] The main algorithm of the standard Distributed Coordinated Function (DCF) protocol is Narrowband Sense Multiple Access / Collision Detection (Carrier Sense Multiple Access with Collision Avoidance, CSMA / CA for short). figure 1 is a schematic diagram of CSMA / CA backoff according to the DCF protocol of the related technology, such as figure 1 As shown, if the source node wants to send data (DATA), it needs to listen to the channel. The source node can only send data frames if the channel is continuously idle for a specific time interval, such as DCF Inter Frame Space (DIFS for short). If the destination node successfully receives the data frame, it also listens to the channel for a specific time interval, such as Short Inter Frame Space (SIFS for short), and if the channel is idle, the destination ...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem that low-speed users occupy the channel for too long in the related art, crowding out the channel occupation time of high-speed users, and reducing the overall throughput of the network, no effective solution has yet been proposed.

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