Dynamic combination and allocation method of CRB (Cognitive Resource Block) resource in cognitive LTE (Long-Term Evolution) system

Abstract

The invention discloses a dynamic combination and allocation method of CRB (Cognitive Resource Block) resource in a cognitive LTE (long-term evolution) system. The method comprises the specific operation steps of: firstly, detecting a broadband frequency spectrum in a current wireless condition by all cognitive terminals distributed in a cell controlled by a base station so as to form frequency spectrum measurement reports; secondly, collecting all the frequency spectrum measurement reports on all the cognitive terminals by the base station so that a plurality of available subcarriers are formed by an available frequency spectrum through carrier processing; thirdly, numbering and sequencing subcarrier information, and dynamically selecting a plurality of subcarrier combinations by the base station to form the CRB resource; and finally, dynamically allocating the CRB resource to each cognitive terminal by the base station according to the service request sent by multiple cognitive terminals to the base station. With the adoption of the dynamic combination and allocation method of CRB resource in the cognitive LTE system, the available frequency spectrum hole resource in the cognitive LTE system can be fully mined, and the CRB resources are dynamically combined as required from two dimensionalities of time and frequency; and therefore, a technical support is provided for efficiently using time-frequency resources in the cognitive LTE system.

Description

technical field [0001] The present invention belongs to the field of communication technologies, and further relates to a method for dynamically combining and allocating cognitive resource block (Cognitive Resource Block, CRB) resources in a cognitive long-term evolution (Long-Term Evolution, LTE) system. Aiming at different service types in the cognitive long-term evolution LTE system, the present invention proposes a flexible dynamic combination and allocation method of cognitive resource block CRB resources to meet the requirements of time-frequency resources of different service types. The present invention can fully tap the spectrum hole resources available in the Cognitive Long Term Evolution LTE system, dynamically combine them into CRB resources on demand from the two dimensions of time and frequency, and provide technical support for the efficient use of time-frequency resources in the Cognitive Long Term Evolution LTE system . Background technique [0002] The Ort...

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that it only realizes the cognitive technology-based reduction of LTE wireless communication system cell interference in the spectrum category, and cannot further optimize resource utilization from the time dimension.

In addition, neither of the above two methods can flexibly provide a dynamic combination method of cognitive resource block CRB resources according to service types, nor can it dynamically allocate cognitive resource block CRB resources that meet its performance requirements for cognitive terminals according to service types

Images