Dynamic cooperative coverage method among base stations

A technology between base stations and base stations, which is applied in the field of dynamic cooperative coverage between base stations, can solve the problems of not considering the number of users, the random time-varying characteristics of user positions, and the difficult energy-saving communication mode, and achieve the effect of less power increase

Active Publication Date: 2014-07-16
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0005] However, in the real wireless communication environment, the distribution of mobile users in time and space is irregular. It is difficult to achieve efficient energy saving without making real-time cooperative decisions between base stations by monitoring changes in the surrounding environment. communication mode
However, in the prior art, most methods only consider how to

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  • Dynamic cooperative coverage method among base stations
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  • Dynamic cooperative coverage method among base stations

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Embodiment 1

[0049] The embodiment of the present invention proposes a dynamic coordinated coverage method between base stations, see figure 1 , the method includes:

[0050] Step S1: divide the dormant cell of the base station into several sectors, and count the number of users not connected to the base station in each sector;

[0051] Step S2: Using the gray Markov prediction model to calculate the predicted value of the number of users in each sector after a predetermined period of time according to the number of users not connected to the base station;

[0052] Step S3: Find the sector with the largest predicted value of the number of users among several sectors, and find the sector with the largest predicted value of the number of users in the half of the cell opposite to the sector;

[0053] Step S4: Enlarging the transmit power of the base stations of the neighboring cells adjacent to the two sectors until all users in the two sectors are connected to the base station;

[0054] St...

Embodiment 2

[0061] The embodiment of the present invention proposes a method for dynamic coordinated coverage between base stations in a cellular network, see figure 2 , consider that in a cellular network, a cell and 6 adjacent cells together form a management domain, and a base station (base station) is set in the center of each cell, mobile users (mobile users) are randomly distributed, and the distance between base stations (distance between neighbor cells) is a, and the coverage radius (cell coverage radius) of each base station is R.

[0062] The energy consumption of the base station is mainly composed of two parts, the signal transmission power consumption and the basic operation power consumption of the base station. The basic operating power consumption of the base station includes cooling fan energy consumption, power amplifier energy consumption, core equipment energy consumption, power system loss, signal processing energy consumption, etc. Based on the goal of saving netwo...

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Abstract

The invention relates to mobile wireless communication, in particular to a dynamic cooperative coverage method among base stations. In the prior art, only how to control cell base stations under a static condition is considered, the number of users and the random time-variant characteristic of positions of the users are not considered, and communication blind spots can not be efficiently and accurately covered after one cell is dormant. The dynamic cooperative coverage method among the base stations carries out forecasting according to the number of users of a grey markov model and combines zonal statistics, and the base stations of other neighborhood cells can efficiently, timely and accurately cover all users in the dormant cell when one cell base station is dormant.

Description

technical field [0001] The invention relates to mobile communication technology, in particular to a dynamic cooperative coverage method between base stations. Background technique [0002] With the continuous promotion of 3G and 4G technologies, more and more new base stations are put into operation, which not only causes energy waste, environmental pollution and other problems, but also greatly increases operating costs. Therefore, research on efficient energy-saving communication modes is imminent. [0003] In 2010, IEEE's 21st International Symposium comprehensively described the communication mode of applying base station sleep mode in 2G / 3G network to save energy consumption. The core idea is that when the load in the coverage area of ​​a base station is extremely low or there is no load, we can save a lot of unnecessary energy consumption by turning off the base station or maintaining the base station in an extremely low power mode. On the other hand, in 2009, some r...

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Application Information

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IPC IPC(8): H04W16/18H04W16/26
CPCY02D30/70
Inventor 魏翼飞宋梅蒋超宇王雅莉马跃滕颖蕾张勇满毅刘洋王莉胡炜王小军
Owner BEIJING UNIV OF POSTS & TELECOMM
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