LIPA data flow transmission method and system

Abstract

The invention discloses a transmission method of LIPA data flow; an operator authorizes the LIPA of H(e)NB before H(e)NB deployment; when the H(e)NB is started, the core network of the operator and the H(e)NB mutually authenticate successfully and H(e)NB has LIPA authority, and the H(e)NB is allowed to be accessed through a local IP; and the H(e)NB registers UE, the UE can implement local IP access under the circumstance of local IP access so that the H(e)NB can directly carry out data flow transmission with the local network of a resident/a company without the core network under the circumstance that the local network of the resident/company allows the LIPA. The invention also correspondingly discloses a transmission system of the LIPA data flow. Because relevant data flow does not need to be transmitted through the core network, the invention can reduce the burden of the network and save the transmission cost.

Description

technical field [0001] The present invention relates to a wireless cellular communication system, in particular to a transmission method and system for Local IP Access (LIPA) data flow. Background technique [0002] A home base station (Home Node-B, HNB) is used to provide 3G wireless coverage for a third-generation mobile communication system (3G) mobile phone in a home. HNB is generally connected to existing residential broadband services, and it contains the function of an element (Node B) of a standard 3G macro radio access network and the radio resources of a standard Radio Network Controller (RNC) management functions. [0003] figure 1 is a schematic diagram of the system structure of HNB, such as figure 1 As shown, the HNB accesses the core network of the operator through a security gateway (SeGW), wherein the broadband IP backhaul between the HNB and the SeGW may be unsafe, and the information propagated in this backhaul must be transmitted by the HNB and the SeG...

AI Technical Summary

Problems solved by technology

[0006] From a functional and architectural point of view, the H(e)NB subsystem and macro network-specific IP traffic offloads are similar, which may lead to H(e)NB subsystem-specific IP traffic offloading and macro network-specific Commonality of Architectures for IP Traffic Offloading

Network data flow that does not pass through the core network will become common for femtocells and macro networks, which will lead to security measures consistent with the architecture

[0007] However, in the existing technical specifications, there is no description of the data flow transmission that H(e)NB accesses to the local network of residents / companies through LIPA, and there are no corresponding protection measures for the transmission path and transmission content of the data flow , and, the offloading of the specific IP data flow of the H(e)NB subsystem has become an inevitable trend, so the secure transmission mode of the LIPA data flow needs to be introduced to ensure the success of the specific IP data flow of the H(e)NB subsystem uninstall

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