Method and terminal for performing detach procedure

Abstract

Disclosed is a method for performing a detach procedure in a terminal. The method includes the steps of: receiving a detach request message from an entity within a network; if the type in the detach request message indicates re-attach required, stopping a first timer if the first timer is running; stopping a second timer if the second timer is running; and transmitting a detach accept message to the entity within the network.

Description

Technical field [0001] The present invention relates to a method and terminal for performing a detach procedure. Background technique [0002] In order to meet various forums and new technologies related to the 4th generation mobile communication, as part of the effort to optimize and enhance the performance of 3GPP technology, since the end of 2004, we have been committed to providing the 3rd generation of technical regulations for the 3rd generation mobile communication system The Partnership Project (3GPP) has continued to conduct research on Long Term Evolution / System Architecture Evolution (LTE / SAE) technology. [0003] The SAE, mainly led by 3GPP SA WG2, involves research on network technologies dedicated to determining the network structure and supporting mobility between networks of different versions in conjunction with the LTE work of the 3GPP TSG RAN. Recently, SAE has been regarded as an essential standardization issue of 3GPP. This work is for the development of 3GPP...

AI Technical Summary

Problems solved by technology

[0041] In addition, if the interface between the S-GW52 and the PDN-GW53 or the interface between the PDN-GW53 and the Internet Protocol (IP) service network of the mobile communication operator is overloaded or congested, the downlink data to the UE10 or from the UE10 The uplink data was not sent correctly

[0042] In addition, when the UE is handed over from the currently serving cell to another cell, if the other cell is overloaded, it will cause the problem of service interruption of the UE

[0043] In order to solve the above problems, mobile communication operators have replaced S-GW52 and PDN-GW53 with high-capacity devices, or installed more new devices, but it has the disadvantage of requiring very high cost

In addition, it has the disadvantage that the amount of data sent or received increases exponentially over time and then becomes overloaded for a short time

[0060] However, if the UE10 operates the backoff timer, the UE10 cannot perform reattachment due to the backoff time

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