Signaling tracing method and apparatus

Abstract

The invention relates to the communication field and discloses a method and a device for tracing signaling, so as to result in continuous signaling tracing on various processes. In the invention, when a terminal moves between two pieces of core network equipment, if the terminal requires to be traced, trace controlling and configuration parameters of the terminal are transmitted between the two pieces of core network equipment. The core network equipment can be an SGSN or an MME; the transmission of the trace controlling and configuration parameters can happen between two SGSNs and two MMEs or between the SGSN and the MME. In the signaling process in which the MME and a service SAE gateway are interactive, if the terminal related to the signaling process requires to be traced, the MME sends the trace controlling and configuration parameters to the service SAE gateway through an interface with the service SAE gateway.

Description

technical field [0001] The invention relates to the communication field, in particular to signaling tracking technology. Background technique [0002] The Universal Mobile Telecommunications System ("UMTS") system adopts a structure similar to that of the second-generation mobile communication system, including a radio access network (Radio Access Network, "RAN") and a core network (Core Network , referred to as "CN"). Among them, RAN is used to handle all wireless-related functions, while CN is used to handle all voice calls and data connections in the UMTS system, and realize the switching and routing functions with external networks. RAN, CN, and user equipment (User Equipment, referred to as "UE"), that is, terminals, constitute a UMTS system, such as figure 1 shown. [0003] The RAN in the UMTS system is the Universal Mobile Telecommunications System Terrestrial Radio Access Network (UTRAN for short), which includes one or several Radio Network Subsystems (RNS for sh...

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Problems solved by technology

[0019] In the process of implementing the above scheme, the inventor of the present invention found that when the tracked user migrated across the SGSN service RNS, since no tracking control of the user was provided And the propagation method of configuration parameters from the source SGSN to the target SGSN, which will lead to the problem that the tracked user cannot continue to track normally after the service RNS migration of the tracked user across SGSN

[0020] Moreover, SAE includes MME, E-UTRAN, Serving SAE Gateway Node (Serving SAEGateway), and Packet Data Network (Packet Data Network, referred to as "PDN") SAE Gateway Node (such as Figure 4 shown), and the current scheme does not involve the user signaling tracking method in the serving SAE gateway node

In addition, the current solution does not involve the signaling tracking method when the terminal switches between different systems of E-UTRAN and UTRAN, roams, or updates its location.

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