Control method for base station interface establishment and communication system

Abstract

The invention discloses a control method of base station interface establishment. UE (user equipment) discovers and reports a new cell to an eNB, the eNB acquires a TNL (transport network layer) address of HeNB by an MME (mobility management entity) and a HeNB GW (home eNodeB gateway), the eNB sends an X2 interface establishment request message to the HeNB, the HeNB judges the access mode of the HeNB is a mixed mode, an open mode or a close mode, if the access mode is a mixed mode or an open mode, the HeNB feeds back an X2 interface establishment response message to the eNB, wherein the X2 interface establishment response message comprises a C S G ID of the HeNB and access mode information; if the access mode is a close mode, the HeNB feeds back an X2 interface establishment failure information to the eNB. The invention discloses a communication system. By adopting the control method of base station interface establishment and the communication system provided by the invention, the X2 interface can be preferentially selected for switching the base station of the UE, thus the singling flow of the core network can be reduced.

Description

technical field [0001] The invention relates to mobile communication technology, in particular to a base station interface establishment control method and a communication system. Background technique [0002] Currently, in the 3rd Generation Partnership Project (3GPP), a home base station (HeNB) node is added. HeNB is a mobile communication base station equipment with relatively low power, which is suitable for users with fixed target groups in a limited environment, and is used in homes, campus networks, enterprise networks, etc. [0003] figure 1 It is a schematic diagram of a network structure of an existing communication system including a HeNB. Such as figure 1 As shown, the HeNB can be connected to the Mobility Management Entity and Serving Gateway (MME / S-GW) through the Home Base Station Gateway (HeNB GW). Multiple HeNBs can be connected to each HeNB GW, the HeNB GW and the HeNB are connected through the S1 interface, and the HeNBs can be connected through the X2...

AI Technical Summary

Problems solved by technology

[0004] In the above-mentioned existing communication system including the HeNB, the signaling process of the existing 3GPP communication protocol cannot be successfully established between the eNB and the HeNB. Therefore, when the user equipment (UE) needs to communicate between the eNB and the HeNB When performing base station handover between eNBs, for example, the UE under the eNB needs to be handed over to the HeNB, or the UE under the HeNB needs to be handed over to the eNB, only the S1 interface can be used for the base station handover, that is, the handover method based on the S1 interface is used in the connected state

Since the switching method based on the S1 interface needs to complete signaling interaction through the core network, it occupies a large amount of core network signaling traffic

Images