Spectrum sharing method based on user fairness among different operators

Abstract

The invention discloses a spectrum sharing method based on user fairness among different operators. The method comprises the following steps: determining a bandwidth value of a shared spectrum pool and update time for reallocating spectrum pool resources by different operators in a negotiating way; determining bandwidth demand values in cells inside the operators according to user types and service types within the current update time, wherein the bandwidth demand values comprise a bandwidth demand preset value determined according to user demand bandwidth resources and bandwidth demand meeting values of user type and service type bandwidth resources meeting a certainty degree; and allocating bandwidths in the shared spectrum pool according to the bandwidth demand values of the operators. Through adoption of the spectrum sharing method, the priorities of different user types and the priorities of different service types are considered fully; shared spectrum resources are allocated based on the user type and service type bandwidth resources meeting the certainty degree; and the resource allocation fairness is improved.

Description

technical field [0001] The invention relates to a spectrum sharing method, in particular to a spectrum sharing method between different operators based on user fairness, and belongs to the technical field of wireless communication. Background technique [0002] In recent years, with the comprehensive development of communication technology and the popularization of intelligent terminal equipment in cellular systems, the data communication services of user terminals have increased sharply, resulting in the special authorized spectrum resources allocated to designated users within a certain period of time or within a certain area. Insufficient or even insufficient, resulting in that user needs cannot be well met, and at the same time, the service quality of data services is reduced. Therefore, it is urgent to find an additional spectrum resource to meet the growing bandwidth needs of users. [0003] However, the total amount of spectrum physical resources is limited, and in or...

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Problems solved by technology

However, this method only conducts simulation research on several hypothetical scenarios, and then draws general conclusions. It does not consider the issue of how to divide the public spectrum pool resources between operators, and does not consider the issue of negotiation between operators.

[0007] In PCT / CN2014 / 090830, the division of shared spectrum pools by different operators based on the minimum bandwidth demand value is studied. The minimum bandwidth demand values ​​of different operators are calculated respectively, and then mutually negotiated to divide the same spectrum pool resources. When the spectrum pool resources are not enough, use the method of reducing power to jointly use the same spectrum resource, but this solution still does not distinguish between user priority and service type priority, and there is still unfairness in bandwidth allocation.

[0008] F.Guidolin, M.Carpin, L.Badia a and M.Zorzi also considered the division of shared spectrum resources based on user fairness in the paper "Fairness Evaluation of Practical Spectrum Sharing Techniques in LTE Networks" on pages 1-6 of 2014ISCC. However, this solution only defines the fairness of users as the number of users. When users are in a state where the buffer is fully loaded, operators with a large number of users are allocated more bandwidth, and operators with a small number of users are allocated bandwidth. It is less, there is no real distinction between different user levels, and they should be treated differently when allocating bandwidth, and some users may not need to send data services for a certain period of time, and these users should not be counted when calculating bandwidth. As a result, bandwidth allocation is unfair, and user needs cannot be met in order of priority, which may cause some users or certain services to be starved to death, and the unfairness among users is serious

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