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Method, system and device for transmitting user plane data

A technology of user plane data and user equipment, applied in the direction of electrical components, wireless communication, network topology, etc., can solve the problem that UE cannot provide normal services, etc.

Inactive Publication Date: 2014-01-01
CHINA ACAD OF TELECOMM TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] A method, system and device for transmitting user plane data provided by the embodiments of the present invention are used to solve the problem in the prior art that the RN cannot continue to provide normal services for the UE residing under the RN Cell during the process of the RN replacing the DeNB

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  • Method, system and device for transmitting user plane data
  • Method, system and device for transmitting user plane data

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Embodiment Construction

[0038] In the embodiment of the present invention, during the switching process of the relay node RN equipment, the source base station forwards the downlink user plane data of the ERAB of the user equipment through the downlink data forwarding tunnel allocated by the target base station for each ERAB of the RN equipment respectively; User equipment that enters the cell managed by the RN device. Since the source base station forwards the downlink user plane data of the ERAB of the user equipment through the downlink data forwarding tunnel of each ERAB of the RN device in the embodiment of the present invention, the data lossless in the process of switching the RN device from the source serving DeNB to the target DeNB is realized. It is ensured that during the handover process of the RN from the source DeNB to the target DeNB, the RN device can provide services for the UE in the RN Cell without interruption.

[0039] The embodiments of the present invention will be further desc...

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Abstract

The embodiment of the invention relates to the technical field of wireless communication, in particular to a method, system and device for transmitting user plane data to solve the problems that in the prior art, when an RN replaces a DeNB, the RN cannot continue to provide a normal service for UE lingered in an RN Cell. The method comprises the steps that a source base station determines down-link data forwarding tunnels distributed to ERABs of the RN respectively through a target base station in the process of switchover of the RN; the source base station forwards down-link user plane data of the ERABs of the UE through the down-link data forwarding tunnels, wherein the UE is UE having access to the RN Cell. According to the embodiment of the invention, data can be lossless when the RN is switched over to a target DeNB from a source DeNB, and the RN can continuously provide the service for the UE in the RN Cell.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method, system and equipment for transmitting user plane data. Background technique [0002] At present, when the user plane architecture in the RN (Relay Node, relay node) system architecture and the DeNB (Donorevolved node B, donor enhanced base station) process data, the user plane downlink data tunnel is based on PerUE Per ERAB (per UE per ERAB ; UE (User Equipment, user equipment); ERAB (E-UTRAN Radio Access Bearer, Evolved Universal Terrestrial Radio Network Radio Access Bearer)) Granularity allocation, that is to say, the network will be for each access from the RN Each ERAB of the UE uniquely allocates a pair of GTP Tunnel (GPRS Tunnel Protocol Tunnel; GPRS (General Packet Radio Service, General Packet Radio Service)). For downlink data, DeNB receives downlink user plane GTP Tunnel data from SGW (Serving GW, serving gateway), replaces the GTP hea...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/00H04W36/08
CPCH04W36/0055H04W84/047H04W36/00H04W36/00695
Inventor 焦斌鲍炜杨义
Owner CHINA ACAD OF TELECOMM TECH
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