A communication system, local mobile node and base station

Abstract

The present invention provides a communication system, a local mobile node, and a base station. The communication system includes an MME, a plurality of eNBs, and a local mobile node. The local mobile node receives a path switching request sent by a target eNB, and determines the path switching request according to the path switching request message. When local path switching needs to be performed, a user data path between the local mobile node and the target eNB is established for the UE according to the path switching request, so that the transmission of user plane data between the UE and the serving gateway is performed through the user data path. In this way, after the UE successfully switches the eNB, the user data path between the MME and the serving gateway and the local mobile node does not need to be changed, only the data transmission path between the local mobile node and the target eNB is changed, thereby avoiding damage to the MME. The signaling load is reduced, and the time consumed by the entire handover process is relatively short, which avoids the handover failure in the traditional way.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a communication system, a local mobile node and a base station. Background technique [0002] With the rapid development of mobile services, data traffic increases rapidly in some densely populated areas. Statistics show that 20% of mobile service-intensive areas carry 80% of the data traffic of mobile service operators. Therefore, for these areas It is imminent to use wireless spectrum resources efficiently to offload the data, and the small cell (Small Cell) has become a means of data offloading for mobile service operators because of its low cost, miniaturization, convenient site selection, and simple deployment. However, as the demand for business volume increases, the deployment of small cells becomes more and more intensive. [0003] Due to the miniaturization of the small cell, it can generally cover a range of 10 meters to 200 meters. Therefore, when a user ...

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Problems solved by technology

[0010] Embodiments of the present invention provide a communication system, a local mobile node, and a base station, which are used to solve the problem of handover failure caused by a high-speed moving UE switching between small stations in the prior art, and excessive signaling load on core network equipment. The problem of reducing the working efficiency of core network equipment

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