Single vacation based cellular network base station power control method

A power control and cellular network technology, applied in the field of mobile communication, can solve the problems of not fully considering node dormancy and service performance improvement, node delay dormancy, increasing node delay dormancy, node delay start, etc.

Inactive Publication Date: 2016-11-16
辛建芳
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] Aiming at the problems that the existing cellular network base station power control method does not fully consider the relationship between node sleep and business, the performance improvement, node delay sleep, node delay start, and the practical application of low-complexity algorithms, the present invention proposes a method b...

Method used

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  • Single vacation based cellular network base station power control method
  • Single vacation based cellular network base station power control method
  • Single vacation based cellular network base station power control method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0096] Step 1: base station service queuing model;

[0097] The present invention is aimed at a special application scene, comes from practical application, and the scene setting is meticulous and reasonable, and has practical guiding significance. Such as figure 1 As shown, in the existing mobile communication system, compared with the macro cellular network, the small cell (Small Cell) can reduce the energy consumption. Miniaturized base stations can be deployed in densely populated areas or at the edge of existing macrocells to improve spectrum efficiency and energy utilization. However, due to the massive deployment of miniaturized base stations, about 440 million kWh of electricity will be consumed by 2020, constituting an additional 5% of the energy consumption of traditional macrocellular networks. However, small base stations have the advantage of reducing energy consumption at the cost of sacrificing coverage. Because a large number of small base stations need to be d...

Embodiment 2

[0140] The present invention further improves on the basis of Embodiment 1, and improves the solution efficiency of the optimization problem P1. The present invention proposes a new idea of ​​solving the optimization problem P1, and adopts the Lagrangian multiplier method to search for optimization, and the speed is faster. Faster and less algorithmic complexity. Specifically, the solution of the optimization problem P1 can adopt the Lagrangian factor method:

[0141] L ( K V , P ‾ V , β ) = 1 λ ...

Embodiment 3

[0148] Embodiment 1 and Embodiment 2 solve the optimization problem P1, and the optimized variable is the average arrival number K of data packets in a vacation period V and the average energy consumption over a vacation period Then, in order to further guide the engineering practice and better control the energy-saving control parameters of the base station, we need to dig deeper into other control parameters and try to simplify the calculation amount of the optimal algorithm.

[0149] Next, we analyze formula (6) again, and notice that there is an important parameter K in the average stay time T V , in-depth research found that we can obtain the average arrival number K of data packets in a vacation period V The Z-transform of

[0150] T V ( S V ) = 1 2 λD ...

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Abstract

The invention discloses a single vacation based cellular network base station power control method, and belongs to the technical field of mobile communication. The single vacation based cellular network base station power control method comprises the steps of establishing a base station service queue model, establishing a base station energy consumption model, analyzing system performance by adopting a queuing theory, and solving an optimal base station energy consumption problem in the presence of a time delay tolerance threshold by utilizing a convex optimization theory. The single vacation based cellular network base station power control method provides a simple and feasible base station single sleep strategy which is different from other sleep strategies; a base station can be in deep sleep in a sleep period, so that whether data arrive in the sleep period is no longer detected, and the expense in the sleep period is zero; meanwhile, the length of the sleep period is customized based on characteristics of the base station per se and is determined by factors such as the geographic position, the service, the load and the user group of the base station; different vacation lengths are customized for different base stations; and the single vacation based cellular network base station power control method is simple to operate and is more flexible.

Description

technical field [0001] The invention belongs to the technical field of mobile communication, and more specifically relates to a method for controlling the power of a cellular network base station based on a single vacation. Background technique [0002] The development of mobile network applications and smart terminals has promoted the growth of wireless broadband demand. However, the demand for exponentially growing data services and high-speed mobile access has led to a sharp increase in the demand for wireless network infrastructure, which also increases the energy consumption and operating costs of the wireless network. Improving the energy efficiency of the air interface and reducing the energy consumption of the base station have become the key research contents of green wireless networks. In order to improve the energy efficiency of mobile cellular networks, it is necessary to design energy-efficient wireless network architectures and protocols, adopt energy-efficien...

Claims

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Application Information

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IPC IPC(8): H04W24/06H04W52/02
CPCH04W24/06H04W52/0206Y02D30/70
Inventor 辛建芳
Owner 辛建芳
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