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Energy-saving strategy under multi-cell overlapping and covering

An overlapping coverage, multi-cell technology, applied in the direction of energy consumption reduction, advanced technology, network traffic/resource management, etc., can solve the problem of not being able to close the energy consumption of micro cells, and achieve the effect of saving energy

Inactive Publication Date: 2011-09-14
SOUTHEAST UNIV
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  • Claims
  • Application Information

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Problems solved by technology

[0004] In a heterogeneous network with overlapping coverage of multiple cells, there are usually multiple micro cells in the hotspot area, and the coverage areas of these micro cells overlap. When all the users of the microcell with low load are admitted, the microcell cannot be turned off to reduce the energy consumption of the system

Method used

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  • Energy-saving strategy under multi-cell overlapping and covering
  • Energy-saving strategy under multi-cell overlapping and covering

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Embodiment Construction

[0053] The present invention proposes an energy-saving strategy under overlapping coverage of multiple cells. An implementation example is given below taking the LTE system as an example. The flow chart is as follows figure 2 Shown:

[0054] Step 1: Each eNB counts the load of users in the cell according to the formula (1) (2), and each eNB exchanges its own information through the X2 interface, including the load of the macro cell and the load of the micro cell. set threshold;

[0055] Step 2: The eNB monitors the load of the cell, and the micro cell judges whether the load is lower than the initially set threshold according to the formula (3). If it is lower than the initially set threshold, then go to the third step; otherwise, go to the first step;

[0056] Step 3: According to the collected load information of each cell, the macro cell judges whether the remaining resources of the cell can accommodate the users of the micro cell to be shut down. If it can, then trigger...

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Abstract

The invention relates to an energy-saving strategy under multi-cell overlapping and covering, comprising the steps of: in a communication system, when in idle communication, firstly switching a part of users in microcells with lower loads into neighbor microcells and macrocells which have an overlapped part with the covering range of the microcells with lower loads, and adopting the remaining resources of the neighbor microcells and the macrocells are utilized to accept all the users of the microcells with lower loads, so that the microcells are closed. The method has the beneficial effects that as the macrocells do not have enough resources to accept all the users of the microcells to be switched, so that the microcells can not be closed and the energy of the system can not be saved. In the energy-saving strategy under multi-cell overlapping and covering, not only are the remaining resources of the neighbor microcells considered, but also all the users of the microcells to be closed can be accepted furthest, so that the microcells can be closed and the energy of the system can be saved.

Description

technical field [0001] The invention is an energy-saving technology applied to a cellular mobile communication system, and belongs to the technical field of mobile communication networks. Background technique [0002] With the expansion of the scale of the mobile communication network, the proportion of energy consumption in the operating cost of the mobile communication network is also increasing, and energy saving has become an important topic in the mobile communication network. The new-generation mobile communication network will adopt a heterogeneous network structure with overlapping coverage of macro cells and micro cells, in which the macro base station of the macro cell guarantees basic coverage to meet basic voice and data service requirements. The micro cell is placed in the macro cell, and the coverage of the hotspot area is guaranteed by the micro base station to meet the needs of large data volume services. In the entire mobile communication network, the energ...

Claims

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Application Information

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IPC IPC(8): H04W28/08H04W52/02
CPCY02D30/70
Inventor 李云刘程喆潘志文尤肖虎刘楠
Owner SOUTHEAST UNIV
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