Method, apparatus and system for data transmission

A data transmission and data packet technology, applied in the field of data transmission, can solve the problems of ignoring data packets, retransmission data cannot be correctly received by UE, etc., so as to avoid waste of retransmission and improve reception accuracy.

Inactive Publication Date: 2017-04-05
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The present invention provides a data transmission method, device and system to at least solve the problem that in the related art, when the SCG changes, the network side will retransmit the data packet to the UE according to the PDCP status report reported by the UE. The reordering self-ignoring behavior will cause the UE to ignore the data packet before receiving the retransmission packet, resulting in the problem that the retransmission data cannot be correctly received by the UE

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  • Method, apparatus and system for data transmission
  • Method, apparatus and system for data transmission
  • Method, apparatus and system for data transmission

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] In order to solve the problem that the retransmitted data cannot be correctly received by the UE due to the UE-side reordering self-ignoring function, thereby avoiding the waste of PDCP data retransmission, a data transmission method is provided in this embodiment. Figure 4 is a flowchart of a data transmission method according to an embodiment of the present invention, such as Figure 4 As shown, on the base station side, the process includes the following steps:

[0062] Step S402, receiving the reordering self-ignoring function response message reported by the user equipment UE;

[0063] Step S404, judging whether the UE has the reordering self-ignoring function according to the reordering self-ignoring function response message;

[0064] Step S406, when the judgment result is yes, if the UE needs to stop the reordering self-ignoring function, configure a reordering self-ignoring function stop instruction for stopping the UE reordering self-ignoring function;

[006...

Embodiment 2

[0077] Another data transmission method is provided in this embodiment, corresponding to Figure 4 In the illustrated embodiment, on the user equipment side, Figure 5 is a flowchart of a data transmission method according to an embodiment of the present invention, such as Figure 5 As shown, the process includes the following steps:

[0078] Step S502, sending a reordering self-ignoring function response message to the network side, the reordering self-ignoring function response message is used to indicate to the network side whether the current user equipment UE has the reordering self-ignoring function;

[0079] Step S504, when it is necessary to stop the reordering self-ignoring function, receiving the reordering self-ignoring function stop instruction sent by the network side;

[0080] Step S506, stop the reordering self ignoring function according to the reordering self ignoring function stop instruction.

[0081] specific, corresponding Figure 4 In the correspondin...

Embodiment 3

[0103] In this embodiment, a data transmission method is provided, Figure 7 is a flowchart of a data transmission method according to another embodiment of the present invention, such as Figure 7 As shown, on the user equipment side, the process includes the following steps:

[0104] Step S602, according to the state of PDCP, stop the reordering self-ignoring function;

[0105] Step S604, judging whether there are unreceived PDCP packets that will be retransmitted;

[0106] Step S606, if the judgment result is negative, start the reordering self-ignoring function.

[0107] Specifically, the data transmission method provided by the embodiment of the application can be applied to a multi-layer network coverage environment. In the data transmission method provided by the embodiment of the application, the user equipment side includes but is not limited to: data card, mobile phone, notebook Various terminals such as computers, personal computers, tablet computers, personal di...

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Abstract

The invention provides a method, apparatus and system for data transmission. The method comprises: receiving the re-sequencing self-ignoring function responding message reported from UE; according to the re-sequencing self-ignoring function responding message, determining whether the UE has the re-sequencing self-ignoring function or not; if the determining result is yes and if it is required to abort the re-sequencing self-ignoring function, then configuring the abortion instruction for the re-sequencing self-ignoring function of the UE; and transmitting the abortion instruction for the re-sequencing self-ignoring function to the UE. The method solves the problem that re-transmission data cannot be correctly received by the UE, therefore, increasing the accuracy to receive re-transmission data and preventing the PDCP data from being wasted in re-transmission.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a data transmission method, device and system. Background technique [0002] In the existing dual connectivity technology, in a multi-layer network coverage environment, the user equipment (User Equipment, referred to as UE) can simultaneously use the communication between the master base station (Master eNB, referred to as MeNB) and the secondary base station (Secondary eNB, referred to as SeNB) resources, and aggregation between base stations (inter-eNB aggregation). In the above scenario, multiple radio bearers (Radio Bearers, RB for short) of the UE may be respectively carried by a secondary cell (Secondary Cell Group, SCG for short) and a master cell (Master Cell Group, MCG for short). Wherein, the RB separated to the SeNB may include a data radio bearer (Data Radio Bearer, DRB for short) and / or a Signaling Radio Bearer (Signalling Radio Bearer, SRB for short). [0003] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/16
CPCH04L1/16
Inventor 吴昱民
Owner ZTE CORP
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