Opening and dormancy method for small cell

Abstract

The application discloses an opening and dormancy method for small cells. The method comprises an establishing process of double connections of a control plane and a user plane which are completely separated: control plane connections are established between UE and a macro base station, and data plane connections are established between the UE and small cell base stations; a current load of the macro base station and current loads of the opened small cell base stations are calculated by the macro base station and the opened small cell base stations, and, when the current load of the certain base station is greater than a set first threshold and exceeds a set first time length, the certain base station is configured with the accessed UE and performs an adjacent region finding measurement; the corresponding UE determines whether adjacent regions of a cell where the corresponding base station is located are at opening or dormancy states; and the corresponding UE determines the adjacent regions are at the dormancy states according to a find reference signal sent by the dormant adjacent region. The macro base station obtains state information of the various adjacent regions of all the UE of the corresponding base stations, a dormant small cell which unloads flow most effectively is selected and then is opened, the data plane of the UE of the corresponding small cell of an overload part is connected and transferred to the opened dormant small cell, the control panel is remained in the macro base station, and the double connection that the control plane and the user plane are separated is established. Through application of the method, load sharing can be achieved, a switching frequency is reduced at the same time, and a signaling expense is reduced.

Description

technical field [0001] The present application relates to communication technologies, and in particular, to a method for turning on and sleeping a small cell. Background technique [0002] Reducing energy consumption is one of the key technologies for realizing green wireless communication. By using the cell dormancy technology, the main energy-consuming devices can achieve the effect of energy saving through the switching mechanism. The basic idea of ​​the cell dormancy technology is that when the resource utilization rate of some nodes in the network is very low, or even in an idle state, the node can be put into a dormant mode. As a result, the small cell will have the problem that the corresponding coverage becomes zero. Then, the users linked under these nodes can be transferred to the adjacent nodes for service. [0003] Load sharing is also a process that must be considered in current wireless communication, and existing load sharing can be implemented through dual c...

AI Technical Summary

Problems solved by technology

However, small cells usually have a small coverage area. Therefore, UE often needs to switch between different small cells when moving. Too frequent switching will affect the data transmission of UE.

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