Method and apparatus for synchronizing terminal state in universal access network

Abstract

The invention relates to the field of wireless communication and discloses a synchronous terminal state method and device in a universal access network. The invention is able to guarantee a GAN network to obtain correctly context information of related state of the terminal. In the invention, the terminal transmits the state information of a CS domain and a PS domain to a network side device of the GAN. The terminal is processed by the network side device according to the received state information of the CS domain and the PS domain .After the terminal is reconnected with the GAN, the terminal transmits the state information of the CS domain and the PS domain in the GAN mode. The terminal is able to transmit the state information of the CS domain and the PS domain in a GERAN / UTRAN mode tothe GANC in the register process. The terminal is also able to initiate a register updating process in the situation that the state of the CS domain or the PS domain in the GETAN / UTRAN mode is changed.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a universal access network. Background technique [0002] In order to ensure that the GAN network can correctly handle services in the circuit domain and packet domain, the status of the terminal in GERAN / UTRAN mode and GAN mode must be synchronized to the GAN network: on the one hand, the terminal must report to the GAN when it registers with the GAN network. The state in / UTRAN mode, on the other hand, if the terminal is in GAN mode or GERAN / UTRAN mode, if the connection with GANC is abnormal, it is also necessary to ensure that the state in GAN mode is synchronized to the GAN network. [0003] The terminal can report its status in GERAN / UTRAN mode to GANC during the registration process, including the following steps: [0004] Step 1: The terminal sends a registration request to the designated GANC, and the registration request includes the status information of the term...

AI Technical Summary

Problems solved by technology

[0009] However, the inventors of the present invention found that if image 3 The value of the GRS information element shown only includes the state of the terminal in the circuit domain, but not the state of the terminal in the packet domain (that is, General Packet Radio Service (General Packet Radio Service, "GPRS")). Therefore, in When the terminal reports the status through the registration process, GANC cannot know the working status of the terminal on GPRS

[0010] Similarly, when the terminal synchronizes the state information in the GAN mode to the GAN network, it only reports the GA-RC / GA-CSR state, and does not report the state of the packet domain in the GAN, so the GANC cannot correctly judge whether it is necessary to establish, maintain, or terminate the packet domain business

For example, when the terminal is in the GA-CSRdedicated or GA-PSR active state, it cannot initiate the process of redirecting the mobile terminal to other GANCs

At this time, if GANC does not correctly know the status of the packet domain, it may initiate a redirection process, resulting in the interruption of the packet domain business

[0011] In addition, the inventors of the present invention also found that when the terminal is in GERAN / UTRAN mode and completes GAN registration, when it initiates the registration update process to GANC, it does not report the state information in GERAN / UTRAN mode (including circuit domain and packet domain) , making it impossible for GANC to know the latest state information of the circuit domain and packet domain in the GERAN / UTRAN mode of the terminal

[0012] Moreover, if the working status of the terminal under GERAN / UTRAN changes, the terminal cannot notify GANC in time to update its status information

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