WO2012151834A1

WO2012151834A1 - Ue processing method and system for intermittent blinking of sctp coupling

Info

Publication number: WO2012151834A1
Application number: PCT/CN2011/079996
Authority: WO
Inventors: 孙伟
Original assignee: 中兴通讯股份有限公司
Priority date: 2011-07-01
Filing date: 2011-09-22
Publication date: 2012-11-15
Also published as: CN102858024A

Abstract

Disclosed is a UE processing method for intermittent blinking of SCTP coupling, which comprises: setting a time L; when intermittent blinking of SCTP coupling occurs, if the SCTP coupling recovers in the time L, not releasing the connection between an eNB and a UE, and directly recovering the service of the UE; while if the SCTP coupling does not recover in the time L, releasing the connection between the eNB and the UE, reestablishing the connection between the eNB and the UE after the recovery of the SCTP coupling, and recovering the service of the UE. The time L is smaller than or equal to that of a timeout timer for establishing the SCTP coupling specified by the SCTP. Through the present invention, the UE service recovery time during the intermittent blinking of the SCTP coupling can be effectively reduced. Also disclosed is a UE processing system for intermittent blinking of SCTP coupling, which comprises a time setting module and a service recovery module.

Description

Method and system for processing UE when SCTP coupling flashing

The present invention relates to the field of communication technologies, and in particular, to a method and system for processing a UE (User Equipment) when a SCTP (Stream Control Transmission Protocol) is coupled to a flash. Background technique

In an EPS (Evolved Packet System) system, an SCTP coupling is established between an eNB (evolved Node B) and an MME (Mobility Management Entity) to carry S1 interface signaling. In the case of an abnormal SCTP coupling, an instantaneous disconnection and reconstruction may occur, which is called flashing.

In the LTE (Long Term Evolution) system, when the SCTP coupling between the eNB and the MME is flashed, according to the existing solution, the eNB and the MME release the UE immediately after the SCTP coupling is disconnected. Context, in this way, after a short time SCTP coupling recovery, the UE must re-execute the attach process to access the network. This will cause the UE to immediately drop the call and greatly increase the time for the UE to resume service. Summary of the invention

In view of the above, the technical problem to be solved by the present invention is to solve the problem that the UE service recovery time is long when the SCTP coupling flashing exists in the prior art, and a UE processing method and system for SCTP coupling flashing is proposed. It can effectively shorten the UE service recovery time when the SCTP coupling is flashed.

The present invention is applicable to processing UEs in an ECM-CON ECTED state,

ECM-CON ECTED refers to the ECM (EPS Connection Management) connection state. As an aspect of the present invention, a method for processing a UE during SCTP-coupled flashing is provided, including:

Set time L;

After the SCTP coupling is flashed, if the SCTP coupling is restored within the time L, the connection between the eNB and the UE is not released, and the UE service is directly restored;

If the SCTP coupling is not restored within the time L, the connection between the eNB and the UE is released, and when the SCTP coupling is restored, the connection between the eNB and the UE is reestablished, and the service of the UE is restored.

Further, the time L is less than or equal to the SCTP coupling establishment timeout timer time specified by the SCTP, and is preferably equal to the SCTP coupling establishment timeout timer time specified by the SCTP.

Further, the device does not release the connection between the eNB and the UE, and directly restores the service of the UE:

The eNB and the MME do not release the context of the UE, and after the SCTP coupling is restored, the UE's service is restored.

Further, the connection between the eNB and the UE is released, and when the SCTP coupling is restored, the connection between the eNB and the UE is re-established, and the service of the UE is restored:

Release the UE context, and send an RRC Connection Release message to the UE to release the RRC connection;

When the SCTP coupling is restored, the RRC connection between the eNB and the UE is re-established, and the service of the UE is restored.

The RRC Connection Release message refers to an RRC (Radio Resource Control) connection release message.

As another aspect of the present invention, a processing system for a UE when SCTP is coupled to a flash is provided, including:

a time setting module, configured to set a time L; Service recovery module, used to:

Further, the service recovery module includes a timeout service recovery submodule and a timeout service recovery submodule;

The non-timeout service recovery sub-module is configured to: after the SCTP coupling is flashed, if the SCTP coupling is restored within the time L, the connection between the eNB and the UE is not released, and the UE service is directly restored. ;

The timeout service recovery submodule is configured to release a connection between the eNB and the UE if the SCTP coupling is not restored within the time L, and re-establish the eNB and the UE when the SCTP coupling is restored. The connection between and restores the UE's business.

The beneficial effects of the invention are:

With the SCTP coupling flashing UE processing scheme provided by the present invention, when the SCTP coupling is flashed, if SCTP is coupled within the set time L, the UE can quickly resume the service without re-execution. The attaching process accesses the network, shortens the time for the UE to recover services, and improves the user experience. DRAWINGS

1 is a schematic flow chart of a processing method of a UE when a SCTP coupling flash is performed according to the present invention;

2 is a schematic diagram of the principle that the eNB processes the UE in the ECM-CON ECTED state on the SCTP coupling after the SCTP coupling between the eNB and the MME is disconnected; 3 is a schematic diagram of the principle that the eNB processes the UE in the ECM-CON ECTED state on the SCTP coupling after the SCTP coupling between the eNB and the MME is disconnected, and FIG. 4 is between the eNB and the MME. After the SCTP coupling is disconnected, the timer is restored before the timer expires, and the eNB processes the schematic diagram of the UE in the ECM-CONNECTED state on the SCTP coupling; FIG. 5 is the timer after the SCTP coupling between the eNB and the MME is disconnected. The eNB processes the schematic diagram of the UE in the ECM-CONNECTED state on the SCTP coupling before the timeout. FIG. 6 is a schematic structural diagram of the processing system of the UE when the SCTP is coupled to the flash in the present invention. detailed description

The basic idea of the present invention is: setting the time L; after the SCTP coupling is flashed, if the SCTP coupling is restored within the time L, the connection between the eNB and the UE is not released, and the UE service is directly restored; The SCTP coupling is not restored within the time L, and the connection between the eNB and the UE is released. When the SCTP coupling is restored, the connection between the eNB and the UE is reestablished, and the service of the UE is restored.

The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

1 is a schematic flowchart of a processing method of a UE in a SCTP-coupled flashing manner according to the present invention. As shown in FIG. 1, the processing method of the UE in the SCTP-coupled flashing of the present invention specifically includes the following steps:

Step 101, setting a time L;

The time L is less than or equal to the SCTP coupling establishment timeout timer specified by the SCTP, and the SCTP coupling establishment timeout timer time specified by the SCTP is preferred.

Step 102: After the SCTP coupling is flashed, monitor whether the SCTP coupling recovers in time L; if yes, execute step 103; otherwise, perform step 104.

Step 103: The connection between the eNB and the UE is not released, and the service of the UE is directly restored after the SCTP coupling is restored.

In this step, the eNB and the MME do not release the context of the UE, and after the SCTP coupling is restored, the UE's service is restored. Step 104: After the time L is reached, the connection between the eNB and the UE is released, and when the SCTP coupling is restored, the connection between the eNB and the UE is re-established, and the service of the UE is restored.

In this step, after the time L is reached, the UE context is released, and an RRC Connection Release message is sent to the UE to release the RRC connection. When the SCTP coupling is restored, the RRC connection between the eNB and the UE is re-established, and the service of the UE is restored. .

2 is a schematic diagram of the principle that the eNB processes the ECM-CONNECTED UE on the SCTP coupling after the SCTP coupling is disconnected between the eNB and the MME, and FIG. 3 is the SCTP between the eNB and the MME. After the coupling is disconnected, it is not restored before the timer expires. The eNB processes the schematic diagram of the UE in the ECM-CONNECTED state on the SCTP coupling. As shown in FIG. 2 and FIG. 3, the principles of the processing method of the UE when the SCTP is coupled to the flashing according to the present invention include:

After receiving the SCTP coupling disconnection message, the eNB may search for all UEs on the SCTP coupling according to the coupling ID (identity identification number) of all UEs on the SCTP coupling, and the eNB and the MME start a timing. The time set by the timer is the time L above. In the range of the timer time L, neither the eNB nor the MME release the context of the UE.

If the SCTP coupling between the eNB and the MME is restored before the timer expires, the timer is stopped and the UE's service is restored. If the SCTP coupling is still not restored before the timer expires, the UE context is released and an RRC Connection Release message is sent to the UE, releasing the RRC connection. After the SCTP coupling between the eNB and the MME is restored, the RRC connection is re-established and the services of the UE are restored.

Referring to FIG. 4, after the SCTP coupling between the eNB and the MME is disconnected, the timer is restored before the timer expires, and the eNB processes the process in the ECM-CONNECTED UE on the SCTP coupling to further explain:

Step 401: The eNB receives an ABORT message (disconnect message) sent by the MME, or the eNB finds that the SCTP coupling disconnection with the MME sends an ABORT message to the MME.

Step 402, the eNB searches for all UEs on the SCTP coupling according to the coupling ID of all the UEs on the SCTP coupling, and starts a timer, and the timer duration is set to the foregoing time L; Step 403: Before the timer expires, the SCTP coupling is successfully established between the eNB and the MME. Step 404: The eNB stops the timer and resumes the service of the UE.

In the following, with reference to FIG. 5, after the SCTP coupling between the eNB and the MME is disconnected, the timer is restored before the timer expires, and the eNB processes the process in the ECM-CON ECTED state UE on the SCTP coupling to further explain:

Step 501: The eNB receives the ABORT message sent by the MME, or the eNB finds that the SCTP coupling with the MME disconnects and sends an ABORT message to the MME.

Step 502: The eNB searches for all UEs on the SCTP coupling according to the coupling ID of all the UEs on the SCTP, and starts a timer, and the timer duration is set to the foregoing time L. Step 503, before the timer expires The SCTP coupling between the eNB and the MME is not restored, the timer expires, and the eNB sends an RRC connection release message to all the found UEs.

Step 504: After receiving the RRC connection release message, the UE re-establishes the RRC connection by using an RRC Connection Request message (RRC Connection Request message), an RRC Connection Setup message, and an RRC Connection Setup Complete message (RRC Connection Setup Complete message). And initiate an access process to restore the UE service.

6 is a schematic structural diagram of a processing system of a UE when the SCTP is coupled to a flashing according to the present invention. As shown in FIG. 6, the processing system of the UE in the SCTP-coupled flashing of the present invention includes a time setting module 601 and a service recovery module 602, where service recovery is performed. The module 602 includes a no timeout service recovery sub-module 6021 and a timeout service recovery sub-module 6022.

The time setting module 601 is configured to set a time L, and the time L is less than or equal to the SCTP coupling establishment timeout timer specified by the SCTP, and the SCTP coupling establishment timeout timer time specified by the SCTP is preferred;

Service recovery module 602, for:

After the SCTP coupling is flashed, if the SCTP coupling recovers within the time L, the connection between the eNB and the UE is not released, and the UE's service is directly restored; If the SCTP coupling is not recovered within the time L, the connection between the eNB and the UE is released, and when the SCTP coupling is restored, the connection between the eNB and the UE is reestablished, and the service of the UE is restored.

The non-timeout service recovery sub-module 6021 is configured to: after the SCTP coupling is flashed, if the SCTP coupling is restored within the time L, the connection between the eNB and the UE is not released, and the UE service is directly restored.

The timeout service recovery sub-module 6022 is configured to release the connection between the eNB and the UE if the SCTP coupling is not restored within the time L, and re-establish the connection between the eNB and the UE when the SCTP coupling is restored, and Restore the UE's services.

The specific embodiments of the present invention have been described in detail with reference to the embodiments of the present invention. It should be noted that the foregoing description is only specific embodiments of the present invention, and those skilled in the art may Various changes and modifications of the invention are possible without departing from the spirit and scope of the invention. Therefore, it is intended that the present invention cover the modifications and variations of the invention, and the modifications and variations of the invention are intended to be included within the scope of the invention.

Claims

Claim

A flow control transmission protocol is a method for processing a user equipment UE when the SCTP is coupled to a flash, and is characterized in that: a time L is set; the method further includes:

After the SCTP coupling is flashed, if the SCTP coupling is restored within the time L, the connection between the evolved base station eNB and the UE is not released, and the UE service is directly restored;

2. The method for processing a UE during SCTP-coupled flashing according to claim 1, wherein the time L is less than or equal to an SCTP coupling establishment timeout timer specified by the SCTP.

3. The method for processing a UE during SCTP-coupled flashing according to claim 2, wherein the time L is equal to an SCTP coupling establishment timeout timer time specified by the SCTP.

The method for processing a UE during SCTP-coupled flashing according to any one of claims 1 to 3, wherein the UE does not release the connection between the eNB and the UE, and directly restores the service of the UE: The mobility management entity MME does not release the context of the UE, and resumes the service of the UE after the SCTP coupling is restored.

The method for processing a UE during SCTP-coupled flashing according to any one of claims 1 to 3, wherein the connection between the eNB and the UE is released, and when the SCTP coupling is restored, Establish a connection between the eNB and the UE, and restore the service of the UE to:

Release the UE context, and send a RRC connection release message to the UE to release the RRC connection;

6. A processing system for a UE when the SCTP is coupled to a flash, wherein the system comprises: a time setting module, configured to set a time L; a service recovery module, configured to: after the SCTP coupling is flashed, if the SCTP coupling is restored within the time L, the connection between the eNB and the UE is not released, and the service of the UE is directly restored; if the SCTP is coupled If the time is not restored, the connection between the eNB and the UE is released, and when the SCTP coupling is restored, the connection between the eNB and the UE is re-established, and the service of the UE is restored.

7. The system for processing a SCTP-coupled flashing UE according to claim 6, wherein the time L is less than or equal to an SCTP coupling establishment timeout timer time specified by the SCTP.

8. The method for processing a UE during SCTP-coupled flashing according to claim 7, wherein the time L is equal to an SCTP coupling establishment timeout timer time specified by the SCTP.

The processing system of the UE in the case of the SCTP-coupled flashing according to any one of claims 6 to 8, wherein the service recovery module includes a non-timeout service recovery sub-module;

The non-timeout service recovery sub-module is configured to: after the SCTP coupling is flashed, if the SCTP coupling is restored within the time L, the connection between the eNB and the UE is not released, and the service of the UE is directly restored.

The processing system of the SCTP-coupled flashing UE according to claim 9, wherein the service recovery module further comprises a timeout service recovery sub-module;