Emergency positioning method based on IP, server and system thereof

Abstract

The invention relates to an emergency positioning method based on an IP, a server and a system thereof. The method comprises the following steps that: the positioning server receives an emergency call SIP request message of a VoIP terminal, wherein the emergency call SIP request message is forwarded by a core network; a call connection between the VoIP terminal and an emergency service center is established through the core network according to the SIP request message. The positioning server of the invention can acquire position information with high precision of the VoIP terminal by combining available auxiliary data of the VoIP terminal according to emergency positioning request message transmitted by the emergency service center, and feed back the position information of the VoIP terminal to the emergency service center so as to provide an effective positioning service for the VoIP terminal. In the prior art, the positioning server can not switch an equipment address according to the network address of an interface, can not effectively acquire the terminal reality position address and can not acquire the effective position information of the terminal simply based on the global different internal network address of the terminal. By using the method, the server and the system of the invention, the above problems can be solved.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to an IP-based emergency positioning method, server and system. Background technique [0002] As one of the characteristic services of the mobile communication system, positioning service has always been considered as a bright spot of future mobile value-added services; positioning service is the most attractive service in mobile value-added services, and it is also one of the most complex services in all links of the industry chain . [0003] At present, the main work of OMA LOC (Open Mobile Architecture Location, Open Mobile Alliance working group) is to formulate the positioning technology based on the user plane in the mobile communication network, and to transfer the relevant positioning parameters in the control plane positioning technology in the past mobile communication network to the IP channel. The transmission in the network, and then realize the positionin...

AI Technical Summary

Problems solved by technology

Therefore, in the above scenario, the positioning server either obtains the address of a network address translation gateway device from the interface, and obtains the location information of the network address translation device instead of the location information of the user terminal according to this address translation; or obtains the location information of the network address translation device from the SUPL In the message, the global non-unique intranet address of the terminal is obtained, and the location information of the terminal cannot be converted based on this address

[0007] Therefore, the existing SUPL technical solutions and related interface specifications cannot guarantee that the IP address is converted into effective location information of the terminal when the terminal uses a fixed IP network to access and initiates a VoIP emergency call, and it cannot be based on this Provide effective positioning services for terminals

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