Method, device and system for frequency resource sharing

Abstract

The embodiment of the invention provides a method, device and system for frequency resource sharing, relates to the field of communication, and is used for improving the frequency sharing efficiency between equipment. The method comprises the steps as follows: a second base station receives first base station user information sent by first base station users; whether null space having no interference with first station users exists in the airspace of the second base station or not is determined according to the first base station user information; if the fact that null space having no interference with first station users exists in the airspace of the second base station is determined, the null space is used as a signal emission subspace of the second base station, and the second base station signals are transmitted with any transmission power less than or equal to the greatest transmission power of the second base station; if no existence of null space in the airspace of the second base station is determined, under the premise of interference and restriction on the first base station users, a signal channel subspace and the transmission power which enable the throughput of the second base station to be the most are chosen, and the second base station signals are transmitted with the chosen the transmission power in the chosen signal channel subspace.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method, device and system for sharing frequency resources. Background technique [0002] With the rapid development of communication technology, more and more wireless applications have been developed to enrich people's life and communication, but the available spectrum resources for maintaining wireless communication are limited. With the increase of wireless applications, wireless spectrum resources are increasingly In short supply. Therefore, improving the utilization rate of wireless spectrum and increasing network capacity have become the main challenges faced by wireless communication at present. Femtocells, picocells, and other base stations with a coverage area much smaller than that of macrocells are increasingly deployed in networks because they can reduce communication distances, improve signal quality, and increase system capacity. In order to effectively use the...

AI Technical Summary

Problems solved by technology

[0007] In the process of realizing the above frequency resource sharing, the inventor found at least the following problems in the prior art: the resource orthogonality of the prior art can effectively avoid the interference between the home base station and the macro cell, but the resource utilization rate is not high

Therefore, these existing technologies all make frequency sharing between femtocells and macrocells inefficient

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