Balance priority microcell energy-saving method in relay system

Abstract

The invention discloses a balance priority microcell energy-saving method in a relay system, which mainly solves the problem that an Energy Saving mechanism has a ping-pong effect in the prior art. The method comprises the steps that: 1) a microcell monitors the load change condition per se under a normal operating state; 2) when discovering that the load is lower than an energy-saving closed standard value of the cell, the microcell triggers an active pre-balancing process; and 3) if the energy-saving mechanism of the microcell is needed to be closed, the microcell is closed according to the balanced result, during the closure, a macro-cell restarts the microcell according to the Energy Saving mechanism; and if the microcell is needed to continuously operate, the operating state of the microcell is continuously kept. The method can solve the problem that the Energy Saving mechanism has the ping-pong effect in the prior art, greatly contributes to improving the utilization rate of a communication resource and improving the comprehensive performance of the system, and can be used for the wireless resource management RRM process for a relay in the third-generation mobile communication technology.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and in particular relates to a cell equalization and micro cell energy saving method in a relay system, which can be used in the RRM process of relay radio resource management in the third generation mobile communication technology. Background technique [0002] The relay can not only expand the coverage of the cell and improve the capacity of the communication system, but also save the cost of network construction, so the relay technology has become one of the key technologies of the LTE-Advanced system. [0003] The micro cell established by the relay is an auxiliary cell, and forms a hierarchical cell structure with the macro cell established by the base station. Under the guidance of the concept of green communication, people consider turning off the relay when the load of the micro cell is very low, so as to save energy. When needed, it can be reactivated to continue function...

AI Technical Summary

Problems solved by technology

[0006] The problem with the existing Energy Saving mechanism is that the micro cell only decides whether to shut down according to its own load, without considering the impact on the load of the macro cell after shutting down, and the macro cell only accepts it passively, which will make the Micro cells are constantly turned on and off, which is the "ping-pong effect" of Energy Saving

[0010] When the cell is overloaded, the load balancing technology is used to adjust. This is actually a remedial measure after the event. It cannot prevent the overload of the cell in advance, which leads to the occurrence of the "ping-pong effect".

For another unbalanced state—cell underload, adopting energy-saving technology is certainly a way of thinking, but it does not make full use of the system resource of cell underload.

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