Resource distribution method and device

Abstract

The invention provides a resource distribution method and device. A social track similarity in positive correlation with duration time of a D2D communication link is used to correct a throughput gain value pre-estimated by a D2D pair, so that the throughput gain value pre-estimated by each D2D pair is more accurate, and further, a resource distribution strategy determined by the more accurate throughput gain value is more reasonable; and when utility values of all the D2D pairs are equivalent, resources are distributed to all the D2D pairs according to the resource distribution strategies selected for each D2D pair at present, the fairness of all the D2D links can be improved greatly, and all the D2D pairs are more probable to realize successful transmission. Thus, the resource distribution method and device can improve the transmission success rate of each round of content distribution, reduce the frequency that the content is distributed to the whole network, and reduce transmission delay when the content is distributed to the whole network.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a resource allocation method and device. Background technique [0002] In recent years, due to the popularization of mobile terminals, the data traffic of mobile users increases rapidly, which in turn causes the communication pressure of the base station to increase sharply. In order to reduce the communication pressure of the base station, a device-to-device (Device-to-Device, D2D) communication technology is applied. D2D communication technology is a new type of communication technology that allows terminals to communicate directly by multiplexing cellular network resources under the control of a base station. It does not need to follow the traditional "device-base-device" communication mode. Therefore, D2D communication Technology has become a short-distance communication technology that can effectively unload communication pressure for base stations. ...

AI Technical Summary

Problems solved by technology

[0004] However, since the transmission power of resources allocated to the D2D pair with a longer communication distance is small, the transmission rate of the D2D pair with a longer communication distance is slower, and the required transmission time is longer. If the content to be transmitted is within the D2D When the pairing is not completely transmitted, the communication link of the D2D pair will be disconnected, and the transmission will fail this time, which leads to a low success rate of transmission in each round of the traditional resource allocation method, which in turn makes the content distributed to the entire network. There are many rounds of transmission, which ultimately leads to a long transmission delay for content distribution to the entire network

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