Connection establishment method and device for private network

Abstract

The invention relates to the field of communications, and particularly relates to a connection establishment method and device for a private network. The problem that a private network mobile terminalcommunicates through a private network is solved. The method comprises the steps that SBC1 sends a call request from UE1 to UE2; a resource reservation request sent by the UE2 is sent to the UE1 through PGW1, further, a resource modification request sent by the PGW1 is sent to the UE2; a resource modification response message returned by the UE2 is sent to the UE1; and the UE1 and the UE2 are triggered to complete the connection establishment process of the wireless resources. After a connection establishment process is completed, the private network mobile terminal can access the private network for communication, the increasing high-speed data network requirements and high-definition voice call requirements of the private network mobile terminal are met, and the user experience is improved. In addition, the network resource utilization rate is effectively improved, the security of accessing the private network by the private network mobile terminal is improved, and the flexibility of service management is improved.

Description

technical field [0001] The invention relates to the communication field, in particular to a connection establishment method and device for a dedicated network. Background technique [0002] With the rapid development of mobile networks, it has now entered the fourth generation mobile communication system (Fourth Generation, 4G) network era. Compared with the second generation mobile communication system (Second Generation, 2G) and the third generation mobile communication system (Third Generation Generation, 3G) network has been greatly improved, and has basically achieved full coverage of mobile networks. A private network refers to a network structure in which the network infrastructure and information resources in the network belong to a single organization, and the organization manages the network. [0003] In the prior art, private network communication is mainly realized through the 2G network Global System for Mobile Communication (GSM). Specifically, the mobile netw...

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Problems solved by technology

[0004] However, the prior art only deals with the security issues of mobile terminals accessing private networks, ensuring the secure access of private network communication data, and cannot provide mobile terminals with high-speed data network services such as voice and telephone. Terminals access private networks, and some private networks have established independent mobile networks for communication between mobile terminals, increasing the burden on existing mobile networks, reducing the utilization of network resources, increasing infrastructure costs, and greatly increasing Reduced the input cost of network equipment such as base stations

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