Interaction method between esm and emm modules of LTE terminal non-access layer

Abstract

The invention relates to the field of long-term evolution LTE of mobile communication, and provides an interactive operation method between an LTE terminal non-access layer ESM and an EMM module. The enhanced mobile management EMM module initiates a connection request to the enhanced session management ESM module, and requires the ESM module to initiate a PDN connection process. After the ESM module receives the connection request, it sends a PDN connection request to the EMM module; after the EMM module receives the connection request from the ESM module, it sends an EPS attachment request ATTACH REQUEST to start the EPS attachment process; the present invention triggers the ESM by the EMM module The module initiates a PDN connection request, providing a feasible interactive operation process between the EMM module and the ESM module, avoiding waste of resources, and the interaction process between the EMM module and the ESM module is unified during the startup process of the LTE terminal and when an exception occurs, which is convenient for engineering accomplish.

Description

field of invention [0001] The present invention relates to the technical field of Long Term Evolution (LTE for short) of mobile communication, and particularly relates to an Evolved Packet System (EPS for short) attachment process performed by a terminal after booting up and an abnormality after the EPS attachment requires the terminal to connect to the network again. In the process of EPS attachment, an interactive operation method between an enhanced session management ESM module and an enhanced mobility management EMM module in a non-access stratum (Non-Access Stratum, NAS for short) of an LTE terminal. Background technique [0002] The Evolved Universal Terrestrial Radio Access Network (Evolved Universal Terrestrial Radio Access Network, referred to as E-UTRAN) is the evolved access network of the Universal Terrestrial Radio Access Network UTRAN, and the access technology it uses is called the long-term evolution LTE technology, E-UTRAN The corresponding core network is ...

AI Technical Summary

Problems solved by technology

Although 3GPP has given the signaling process between the ESM module and EMM module in the terminal NAS and the core network, it has not given the specific interactive operation method between the ESM module and the EMM module to complete the EPS attachment process

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