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Bearer admission processing method in S1 interface switching process and mobility management entity

A technology for interface switching and entity management, applied in the field of mobility management entity equipment

Active Publication Date: 2011-06-01
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a bearer acceptance processing method and a mobility management entity device during an S1 interface handover process

Method used

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  • Bearer admission processing method in S1 interface switching process and mobility management entity
  • Bearer admission processing method in S1 interface switching process and mobility management entity
  • Bearer admission processing method in S1 interface switching process and mobility management entity

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Experimental program
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Embodiment Construction

[0047] The inventor noticed during the invention that:

[0048] figure 1 It is a schematic diagram of the handover process of the X2 interface. As shown in the figure, in the handover process of the X2 interface, only the source eNB (source evolved base station) and target eNB (target evolved base station) participate in the handover preparation process, and has nothing to do with the MME. The source eNB is sending to The handover request message of the target eNB includes the bearer information of the UE. After receiving this message, the target eNB reserves bearer resources for the UE, and returns the bearer acceptance result to the source eNB in ​​the handover request response. After the UE is handed over to the target cell, the target eNB sends a path request process to the MME. According to the IE (InformationElement, information element) in the path request message, the MME can determine the bearers successfully accepted by the UE in the target eNB and the bearers not s...

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Abstract

The invention discloses a bearer admission processing method in an S1 interface switching process and a mobility management entity. The method comprises the following steps: the mobility management entity determines that an S1 interface is in a switching preparation process; the mobility management entity receives switching preparation response of a target side; and the mobility management entity determines the admission conditions of default bearers of user equipment in a target cell. By using the invention, failure to admit all the default bearers in the target cell can be found in the switching preparation phase, and the switching process can be suspended. Thus, a source base station can carry out some processing operations, such as selecting other target cells for the user equipment and the like, thereby avoiding the problems that the user equipment is detached from the network and the continuity of the business is accordingly influenced as a result of the failure to admit the default bearers after the user equipment is switched to the target cell.

Description

technical field [0001] The present invention relates to wireless communication technology, in particular to a bearer acceptance processing method and a mobility management entity device during an S1 interface switching process. Background technique [0002] According to the existing agreement, if the default bearer of a certain PDN (Packet Data Network, packet data network) connection is not accepted by the target eNB (evolved base station), and the UE (User Equipment, user equipment) has multiple active PDN connections , the MME (Mobility Management Entity, mobility management entity) considers that all bearers of this PDN connection have failed and initiates a PDN connection deactivation process to deactivate the entire PDN connection. If all default bearers are not accepted by the target eNB, the MME will detach the UE. [0003] In the prior art, the X2 interface handover preparation process does not require the participation of the core network. At the same time, the ba...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/12H04W76/06H04W92/04
CPCH04W36/0016
Inventor 张娟
Owner DATANG MOBILE COMM EQUIP CO LTD
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