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Method and equipment supporting UE bearing recovery

A technology for equipment and bearer identification, which is applied to electrical components, wireless communication, connection management, etc., and can solve problems such as bearer inactivity and UE connection interruption

Inactive Publication Date: 2016-02-17
BEIJING SAMSUNG TELECOM R&D CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0019] Question 1: MeNB may establish all UE bearers on SeNB or the bearers on MeNB are not active
[0020] Question 2: When an error occurs at SeNB, if SGW sends a GTP-U packet to SeNB, SeNB will return a GTP error indication to SGW
That is, the error of SeNB will cause all the bearers on MeNB to be released, thus causing the connection interruption of UE

Method used

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  • Method and equipment supporting UE bearing recovery
  • Method and equipment supporting UE bearing recovery
  • Method and equipment supporting UE bearing recovery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0257] Figure 6 It is a schematic diagram of Embodiment 1 of a method for supporting UE bearer recovery in the present invention. The method includes the following steps:

[0258] In step 601, the SeNB sends a GTP-U packet to the SGW.

[0259] Step 602, when the SGW receives the GTP-U packet sent by the SeNB, but the SGW does not have the bearer context information of the GTP-U packet, the SGW sends a GTP error indication to the SeNB.

[0260]Step 603 , using the method described in step 201 , the SeNB sends to the MeNB a GTP error indication indicating that the SGW has an error or sends UE bearer information corresponding to the S1-U channel that has received the GTP error indication. Specifically, the SeNB may send the indication to the MeNB through a message such as a SeNB deletion request message or a SeNB modification request message.

[0261] Step 604 , the MeNB requests the MME to release the UE bearer according to the instruction of the SeNB or requests the MME to ...

Embodiment 2

[0265] Figure 7 It is a schematic diagram of Embodiment 2 of the method for supporting UE bearer recovery in the present invention. This embodiment includes two situations that cause the MeNB to request the MME to reestablish the bearer of the UE, as shown in steps 701 to 703 and steps 704 to 705 respectively. The method includes the following steps:

[0266] Situation 1: Steps 701 to 703 are the same as steps 601 to 603, and will not be repeated here.

[0267] Case 2:

[0268] In step 704, the MeNB sends a GTP-U packet to the SGW.

[0269] Step 705, when the SGW receives the GTP-U packet sent by the MeNB, but the SGW does not have the bearer context information of the GTP-U packet, the SGW sends a GTP error indication to the MeNB.

[0270] Step 706: After receiving the GTP error indication sent by the SeNB or the GTP error indication sent by the SGW, the MeNB requests the MME to reestablish the UE bearer. Or the MeNB receives the UE bearer information corresponding to t...

Embodiment 3

[0275] Figure 8 It is a schematic diagram of Embodiment 3 of the method for supporting UE bearer recovery in the present invention. This embodiment is a process of notifying the core network of the eNB type or UE bearer type where the UE bearer is located when the UE bearer is established from the idle state to the connected state. The method includes the following steps:

[0276] In step 801, the UE connection is established, and the MME sends an initial context establishment request to the MeNB, indicating the UE bearer to be established.

[0277] In step 802, the MeNB establishes the UE bearer on the MeNB or SeNB, and sends an initial context establishment response to the MME, indicating the eNB type or UE bearer type where the UE bearer is located. The eNB type can be MeNB or SeNB. The UE bearer type can be MCG bearer or SCG bearer.

[0278] In step 803, the MME sends a modify bearer request to the SGW, indicating the eNB type or UE bearer type where the bearer is loc...

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Abstract

The invention provides a method and equipment supporting UE bearing recovery. The method and equipment can carry out reasonable reconstruction, transfer or deletion when SeNB or SGW loses a UE bearing context. The method and equipment can solve a problem of UE bearing recovery under a double-connection configuration with a separated core network, greatly improve the reliability and stability of a network, and improves the network experience of a user. Meanwhile, the scheme of the invention is very flexible and can meet the requirements of public communication business.

Description

technical field [0001] The present invention relates to wireless communication technology, in particular to a method and equipment for supporting UE bearer recovery. Background technique [0002] Modern mobile communication tends to provide users with high-speed multimedia services, such as figure 1 Shown is the system architecture diagram of System Architecture Evolution (SAE). in: [0003] User Equipment (UE) 101 is a terminal device for receiving data. [0004] Evolved Universal Terrestrial Radio Access Network (E-UTRAN) 102 is a radio access network including macro base stations (eNodeBs / NodeBs) that provide UEs with an interface to access the radio network. [0005] Mobility Management Entity (MME) 103 is responsible for managing UE's mobility context, session context and security information. [0006] Serving Gateway (SGW) 104 mainly provides user plane functions, and MME 103 and SGW 104 may be in the same physical entity. [0007] The packet data network gateway ...

Claims

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Application Information

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IPC IPC(8): H04W76/00
Inventor 柯小婉
Owner BEIJING SAMSUNG TELECOM R&D CENT
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