DATA COMMUNICATION METHOD, COMMUNICATION SYSTEM AND RELATED DEVICES

摘要

A data communication method, communication system and related devices are used to create a Transaction Identifier (TI) in a User Equipment (UE). The data communication method comprises the following steps. A Mobility Management Entity (MME) receives a request message and obtains the ability information of the UE. If the UE has an ability to access the Universal Terrestrial Radio Access Network (UTRAN)/Global System for Mobile Communications/Enhanced Data Rates for Global Evolution Radio Access Network (GERAN), the MME generates the TI. A communication system and related devices are also provided.