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Data return method and device

A technology of data and segment data, which is applied in the field of data return methods and equipment, and can solve problems such as inability to send back data

Active Publication Date: 2022-02-15
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, when access network device 1 and access network device 2 do not belong to the same networking mode, that is, when access network device 1 and access network device 2 are switched across networks, access network device 1 cannot transfer the backhaul The data is sent to the access network device 2

Method used

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  • Data return method and device

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Experimental program
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Embodiment Construction

[0117] For ease of understanding, the following firstly introduces the independent networking mode involving the NPN in this application in detail.

[0118] The NPN can be networked in a standalone mode. Such as figure 1 As shown, in the independent networking mode, both the NPN network and the PLMN network exist. Wherein, the NPN network includes an independent non-3AGPP access network, a core network (core network, CN) 1 and a data network 1 . The non-3AGPP access network may include an access device 1, and the access network device 1 may be an access network device of a 3AGPP access network. CN1 may include authentication management function 1 (Authentication Management Function, AMF), service management function 1 (service management facility, SMF), user plane function 1 (User Plane Function, UPF) and other network elements. The PLMN network also includes an independent 3GPP access network, a core network 2 and a data network 2. The 3GPP access network may include an ac...

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PUM

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Abstract

The present application provides a data return method and device. After the terminal device moves from the first access network device to the second access network device, the second access network device receives the first return data from the network device through the target network segment data return channel, and, from The first data of the second UPF. Then, the second access network device sends the first return data and the first data to the terminal device. Or, after the terminal device moves from the first access network device to the second access network device, the second access network device receives second return data from the network device through the target network segment data return channel, and , receiving second data from the terminal device; then, the second access network device sends the second return data and the second data to the second UPF.

Description

technical field [0001] The present application relates to the field of communications, and in particular to a method and device for returning data. Background technique [0002] Since the coverage area of ​​the access network equipment is limited, when the terminal device moves from the place covered by the access network device 1 to the place covered by the access network device 2, the terminal device needs to be switched from the access network device 1 to the access network device 2. Taking the data downlink as an example, before the handover, the data network sends the data to the access network device 1, and the access network device 1 sends the data to the terminal device. After the handover, the data network sends the data to the access network device 2, and sent to the terminal device by the access network device 2. During the handover process, if the data network has sent the data to the access network device 1, but has not yet sent the data to the terminal device...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/08
CPCH04W36/08
Inventor 杨晨晨李欢晋英豪韩锋
Owner HUAWEI TECH CO LTD