Method and system for processing paging under deployment scene of dense small cells

Abstract

The invention relates to a method and a system for processing paging under a deployment scene of dense small cells. The method comprises the following steps that user equipment in an idle mode obtains a deployment type of a small cell detected by the user equipment; the user equipment in the idle mode responds to reselection of a resident cell and judges whether the detected small cell is a blind spot covering small cell; if the detected small cell is the blind spot covering small cell, and in comparison with the signal strength of a macro eNB, the signal strength of the detected blind spot covering small cell meets the cell reselection conditions, the user equipment resides in the blind spot covering small cell, otherwise the user equipment judges whether the macro eNB has minimum performance guarantee of communication; if the macro eNB has minimum performance guarantee of communication, the user equipment resides in the macro base station; an MME (Mobility Management Entity) responds to paging of the user equipment in the idle mode and sends paging signaling to the macro eNB and the blind spot covering small cell; and the macro eNB and the blind spot covering small cell respond to the reception of the paging signaling and broadcast the paging information through an air interface so as to page the user equipment in the idle mode. According to the method and the system, the signaling overload of a core network and the air interface is relieved.

Description

technical field [0001] The present disclosure relates to the technical field of wireless communication, and in particular, relates to a method and system for processing paging in a dense small base station deployment scenario. Background technique [0002] With the vigorous development of mobile broadband, various smart terminals have brought a blowout growth of data services. The existing network deployment mainly based on macro base stations has been difficult to meet the capacity demand, and the small cell (Small Cell) solution is precisely in this It can easily greatly increase the capacity of hotspot areas, and provide coverage of blind spots and indoor coverage. Based on this trend, 3GPP is studying the network deployment technology of macro base stations + dense small base stations in Release12. The specific network deployment scenarios are as follows: figure 1 shown. [0003] The paging function in the LTE (Long Term Evolution, long-term evolution) system can notif...

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Problems solved by technology

[0004] However, in the Release12 dense small base station deployment scenario, a large number of small base stations will be deployed in one TA. According to the existing LTE protocol, the MME needs to send "paging" to all base stations in the tracking area where the UE is located. Signaling, which will bring a huge signaling burden to the core network (Signaling Overhead)

Moreover, such a huge number of small base stations need to broadcast the paging signaling to the cells they cover after receiving the paging signaling, which will also cause a huge air interface (Air Interface) signaling burden on the access network

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