Method and network for communication between soft exchanger and SHLR

Abstract

This invention discloses a method and network for communicating between soft switch devices and combined intelligent attribute position register SHLR, in which, the method includes: a soft switch device communicates with SHLR by diameter protocol, which can avoid communication between soft switch device with SHLR by the MAP protocol and meets the requirement and performance between them.

Description

technical field [0001] The invention relates to the communication technology in the next generation network (NGN), in particular to a communication method and network between a soft switch device and a comprehensive intelligent home location register (SHLR). Background technique [0002] NGN is a service-driven network. It adopts a comprehensive, open and converged network architecture. It realizes a relatively independent service system and makes services independent of the network through the complete separation of service and call control, call control and bearer. [0003] NGN mainly consists of four layers: edge access, core switching, network control, and service management. Among them, the network control layer implements call control, and its core is to use softswitch technology to complete basic real-time call control and connection control functions. The core equipment at the network control level is the softswitch device. In addition to completing functions such a...

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Problems solved by technology

Since the MAP protocol is a protocol based on circuit switching, the communication between the softswitch device and the SHLR adopts the MAP protocol, which will have many shortcomings, and it is not convenient for NGN to transfer to the third generation mobile communication (3G) network / Internet Protocol Multimedia Subsystem (IMS). ) network evolution

The disadvantages of using the MAP protocol for communication between the softswitch and the SHLR are as follows: first, the MAP protocol does not reserve an extension mechanism. If the MAP protocol is extended, it will become a new protocol after expansion, and there will be compatibility issues; Second, the length of the message transmitted by the MAP protocol is only one byte, and the message type field is only one byte, and the data and message types respectively accommodated are relatively small; third, the MAP protocol does not support failure replacement and failure backtracking; fourth, The MAP protocol does not have a security mechanism; fifth, the MAP protocol is a binary encoding method, which is not easy to maintain, and does not have the flexibility and compatibility of the text method; sixth, the MAP protocol cannot be applied to the distributed network of the Mobile Internet Protocol version 6 (IPv6). deal with

[0006] From the above analysis, it can be seen that the communication between softswitch equipment and SHLR adopts MAP protocol, which has many disadvantages, and cannot meet the communication requirements and performance between softswitch equipment and SHLR in NGN network, especially when NGN evolves to 3G network or IMS network. After that, it is even more unable to meet the communication requirements and performance between softswitch equipment and SHLR

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