A method for accessing heterogeneous cells with high energy efficiency
A cell access and energy efficiency technology, applied in wireless communication, network traffic/resource management, power management, etc., can solve problems that have not been well studied, and achieve the effects of improving computing speed, simplifying problems, and high energy efficiency
Active Publication Date: 2018-11-09
白盒子(上海)微电子科技有限公司
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Therefore, according to the above research, it can be found that it is important and meaningful to improve energy efficiency by considering both the selection of the working mode of the macro base station and the user's cell access method. At the same time, in the heterogeneous network scenario, this problem has not been well understood. Research
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[0030] Below in conjunction with specific embodiment, further illustrate the present invention, should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will transform various equivalents of the present invention All fall within the scope defined by the appended claims of this application.
[0031] The simulation parameter configuration in this embodiment is shown in Table 1:
[0032] Table 1 Simulation parameter list
[0033]
[0034]
[0035] The cell access method of the user in the normal time slot and the static time slot of the macro base station includes the following steps:
[0036] 1) Determine the best transmission energy efficiency η that can be obtained by heterogeneous networks * upper bound η max and the lower bound:
[0037]
[0038] Among them, U represents the set of all users in t...
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The invention discloses a user community access method capable of improving the energy efficiency of the heterogeneous network communications on the premise that the user access service quality (QoS) is ensured. The method comprises the steps of firstly, obtaining the current channel state information by all macro base stations and all mini base stations through the estimation of a pilot frequency sequence; secondly, constructing an equality equation for the high-energy-efficiency community access according to the user channel information; finally, solving the equality equation through the alternating iterative optimization process of the standard linear programming method. In this way, a macro base station working mode for realizing the optimal energy-efficiency transmission of the heterogeneous network is obtained. Meanwhile, the community access mode during the normal slot of users and the static slot of a macro base station can be determined based on the above equation. According to the technical scheme of the invention, on the premise that the QoS requirement of users can be met, the working mode selection for the macro base station in the heterogeneous network and the community access mode for users are realized. Therefore, the energy efficiency of the heterogeneous network system is ensured to be optimal.
Description
technical field [0001] The invention relates to a macro base station working mode selection and multi-user cell access method for improving heterogeneous network energy efficiency, and belongs to the technical field of heterogeneous network energy efficiency management. Background technique [0002] In order to meet the ever-increasing performance requirements of communication networks, the traditional cellular network structure composed of macro base stations is gradually changing to a network topology with low transmit power nodes on the basis of macro base stations. This irregular network is called a heterogeneous network. Compared with the traditional cellular network design, due to the unique nature of its own network, the heterogeneous network has its advantages in improving network performance, but also faces many design challenges. [0003] Due to the low transmission power of the small base station, its load is often very small, so that it can provide users with bet...
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IPC IPC(8): H04W28/08H04W52/40
CPCH04W28/08H04W52/40
Inventor 许威崔宇柯
Owner 白盒子(上海)微电子科技有限公司