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Handover method and device without default bearer

A technology of default bearer and device, applied in the field of communication

Active Publication Date: 2018-05-18
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Embodiments of the present invention provide a handover method and device without a default bearer, which solves the problem of forwarding small data through a signaling connection when a user equipment performs cell handover without a default bearer in an evolved packet network

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  • Handover method and device without default bearer

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Embodiment Construction

[0176] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0177] An embodiment of the present invention provides a handover method without a default bearer. The default bearer refers to a data plane bearer that is established when the user equipment initiates an attachment, and is kept for the duration of the PDN connection. The PDN provides an IP connection. In addition, the data sent from the source network device to the target network device in the embodiment of the present invention usually refers to small data, for ex...

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Abstract

Embodiments of the present invention provide a switching method and device without a default bearer, relate to the field of communications, and solve the problem of forwarding small data through a signaling connection when user equipment performs cell switching without a default bearer in an evolved packet network. The method is: the first network device sends a relocation request to the second network device, the second network device establishes a connection with the third network device indicated by the relocation request, and responds to the first network device and instructs the data to be forwarded through the signaling plane. , and then the first network device causes the source network device to forward the data to the target network device according to the forwarding mode indicated by the switching command; or, after the second network device establishes a connection with the third network device indicated by the relocation request, the third network device The device caches the data, and after the user device completes the switching, the third network device sends the cached data to the second network device. The embodiment of the present invention is used for cell switching when there is no default bearer.

Description

technical field [0001] The present invention relates to the communication field, in particular to a handover method and equipment without default bearer. Background technique [0002] In order to meet the challenge of wireless broadband technology and maintain the leading edge of the 3GPP (the3rd Generation Partnership Project, third generation partnership project) network, 3GPP has formulated the LTE (Long Term Evolution, long-term evolution) plan. Under the guidance of this evolution plan, a new mobile communication network architecture is defined, which only retains the packet domain, so it can be called EPS (Evolved Packet System, Evolved Packet Network). [0003] The core network of the EPS mainly includes three logical functional bodies: MME (Mobility Management Entity), S-GW (Serving Gateway, Serving Gateway), and P-GW (Packet Data Network Gateway, packet data network gateway). A functional entity is the core network equipment of the EPS network. Among them, MME is ...

Claims

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Application Information

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IPC IPC(8): H04W36/08
CPCH04W36/02H04W36/0064H04W36/1443H04W36/0055H04W36/0016H04W36/14
Inventor 王春光张万强于益俊
Owner HUAWEI TECH CO LTD
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