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Method for shortening UE attachment time when SCTP link flashes in TD-LTE system

A technology of attaching time and links, which is applied in the directions of electrical components, wireless communication, connection management, etc., can solve the problems of UE attaching time-consuming and time-consuming, etc., and achieve the effect of shortening the attaching time

Active Publication Date: 2011-03-02
北京万海云科技有限公司
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Problems solved by technology

In other words, the interval between two retransmissions is 25 seconds, which takes a long time. Therefore, when the SCTP link is disconnected temporarily, the UE attaches a long time.

Method used

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  • Method for shortening UE attachment time when SCTP link flashes in TD-LTE system
  • Method for shortening UE attachment time when SCTP link flashes in TD-LTE system
  • Method for shortening UE attachment time when SCTP link flashes in TD-LTE system

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Embodiment Construction

[0051] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail with reference to the accompanying drawings and examples.

[0052] The basic idea of ​​the present invention is: when the eNB judges that the SCTP link is disconnected temporarily, it starts the timer TS1. If the SCTP link recovers within the timer TS1 time, the eNB does not need to wait for the UE to resend the attach request message. The attachment process can continue after the link between the MMEs is established, thus shortening the UE attachment time when the SCTP link is disconnected temporarily.

[0053] see image 3 , image 3 It is a flow chart of eNB processing in the UE attachment process of the present invention, which includes the following steps:

[0054] In step 301, the RRC connection is established.

[0055] In this step, after the RRC connection is established, the eNB saves the NAS message carri...

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Abstract

The invention provides a method for shortening UE attachment time when an SCTP link flashes in a TD-LTE system, comprising the following steps: A. an evolved base station (eNB) judges the state of the SCTP link after the radio resource control (RRC) link of UE is completed, if the SCTP link flashes, the step B is implemented, or the step C is implemented; B. the eNB starts a timer; if the SCTP link is restored and the timer is not overtime after the eNB establishes S1 link with a mobility management entity (MME), the step C is implemented, and if the SCTP link is restored and the timer is overtime after the eNB establishes S1 link with MME or the SCTP link is not restored and the timer is overtime, the UE attachment fails; and C. the eNB continues implementing attachment. The method can shorten the UE attachment time when the SCTP link flashes.

Description

technical field [0001] The present invention relates to mobile communication technology, in particular to a method for shortening UE attachment time when a stream control transmission (SCTP) link of a TD long-term evolution (time division-longterm evolution, TD-LTE) system is interrupted momentarily. Background technique [0002] The TD-LTE system includes Evolution of Universal Terrestrial Radio Access Network (E-UTRAN) and Evolution of Packet Domain Core Network (EPC), see figure 1 , figure 1 It is a schematic diagram of the TD-LTE system network structure: E-UTRAN is composed of evolved base stations (eNBs); eNBs can communicate with the core network through the S1 interface; communication between eNBs can also be realized through the X2 interface. [0003] When the user equipment (UE) is powered on, the user needs to register to the network, that is, start the attach process, including radio resource control (RRC) connection, authentication, initial context establishmen...

Claims

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Application Information

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IPC IPC(8): H04W76/02
Inventor 李淼王晓东张立恒段艳华
Owner 北京万海云科技有限公司
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