Resource allocation method, device and user terminal

Abstract

The resource allocation method, device and user terminal provided by the present invention, the method includes: calculating the multi-dimensional centrality of each user terminal according to the equipment information of each user terminal; receiving a service content request sent by at least one user terminal, and sending the service content preferentially Give the user terminal with the highest multi-dimensional centrality and has not obtained the service content, and use it as a multicast cluster head node to forward the service content issued by the base station for the user terminals in the cluster. The present invention proposes the concept of multi-dimensional centrality determined by the strength of social association and physical distance, performs multi-clustering and multicasting based on the multi-dimensional centrality of user terminals, and effectively combines the strength and weakness of content distribution capabilities of user terminals to determine an efficient content distribution method. The willingness to conduct D2D communication between user terminals and the credibility of D2D communication are improved, and the efficiency of service content distribution is improved.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular to a resource allocation method, device and user terminal. Background technique [0002] D2D (Device-to-Device) communication is a new technology that allows terminals to communicate directly by reusing cell resources under the control of the system. It can increase the spectrum efficiency of the cellular communication system and reduce the terminal transmission power. To a certain extent, it solves the problem of lack of spectrum resources in wireless communication systems. D2D technology can be applied to mobile cellular networks to improve resource utilization and network capacity. The resource occupied by each D2D communication link is equal to that occupied by a cellular communication link. D2D communication will obtain frequency resources and transmission power required for communication under the control of macrocell base stations. While sharing wirele...

AI Technical Summary

Problems solved by technology

[0005] Since D2D communication is a communication behavior between terminals, the social intimacy between terminals will play an important role in the willingness of user terminals to conduct D2D communication and the credibility of D2D communication. The traditional D2D multicast method does not Well consider the social attributes between user terminals, some user terminals may refuse D2D communication due to insufficient social connection strength, thus affecting the content distribution efficiency of D2D multicast

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