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A method and device for data transmission

A data transmission and data technology, applied in the field of wireless communication, can solve the problems of incapable data PDU and control PDU repeated transmission mechanism control.

Active Publication Date: 2021-04-06
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention provides a method and device for data transmission, which is used to solve the problem in the prior art that the system that introduces the repeated transmission mechanism cannot control the repeated transmission mechanism of the data PDU and the control PDU respectively

Method used

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  • A method and device for data transmission

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0095] Embodiment 1: downlink data transmission.

[0096] Step 1: The network side device judges whether a RB (Radio Bearer) is configured and / or activates duplication (that is, a repeated transmission mechanism).

[0097] Among them, the duplication can be controlled separately based on the PDCP data PDU and PDCP control PDU of one RB. That is to say, the network side device can determine whether to use the repeated transmission mechanism for the PDCP data PDU of a radio bearer, and / or determine whether to use the repeated transmission mechanism for the PDCP control PDU of a radio bearer.

[0098] The network-side device judges whether an RB needs to use duplication (such as configuring and / or activating duplication) according to specific principles. The specific judgment principles include but are not limited to: judging according to service delay and / or reliability requirements.

[0099] Once it is determined that an RB needs to use duplication, whether to perform duplicat...

Embodiment 2

[0135] Embodiment 2: Uplink data transmission

[0136] Step 1: The network side device judges whether a RB is configured and / or activates duplication (that is, a repeated transmission mechanism).

[0137] Among them, the duplication can be controlled separately based on the PDCP data PDU and PDCP control PDU of one RB. That is to say, the network side device can determine whether to use the repeated transmission mechanism for the PDCP data PDU of a radio bearer, and / or determine whether to use the repeated transmission mechanism for the PDCP control PDU of a radio bearer.

[0138]The network-side device judges whether an RB needs to use duplication (such as configuring and / or activating duplication) according to specific principles. The specific judgment principles include but are not limited to: judging according to service delay and / or reliability requirements.

[0139] Once it is determined that an RB needs to use duplication, whether to perform duplication on the PDCP dat...

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Abstract

The present invention relates to the field of wireless communication technology, in particular to a method and device for data transmission, which is used to solve the problem in the prior art that the system that introduces the repeated transmission mechanism cannot control the repeated transmission mechanism of the data PDU and the control PDU respectively . In the embodiment of the present invention, for any radio bearer of the terminal, the network side device determines whether the PDCP data PDU of the radio bearer uses the repeated transmission mechanism, and / or determines whether the PDCP control PDU of the radio bearer uses the repeated transmission mechanism, and according to the determined result, the terminal Configure the repeat transmission mechanism. Since the PDCP data PDU and the PDCP control PDU are respectively configured, it is possible to control the repeated transmission mechanism of the data PDU and the control PDU separately, so that the repeated transmission mechanism can be applied more flexibly.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method and device for data transmission. Background technique [0002] Numerology is a technical term of 3GPP (3rd Generation Partnership Project, third-generation mobile communication standardization organization) RAN (Radio Access Network, radio access network) 1, which means baseband parameters. The main difference between different numerologies is that the subcarrier spacing supported by different numerologies is different. For example, the subcarrier spacing supported by the 5G NR (New Radio, new air interface) system includes at least: 15KHz and 60KHz. The numerology corresponding to these two different subcarrier spacings is two independent numerology. [0003] Generally speaking, the numerology used by high-speed terminals is different from that used by low-speed terminals; the numerology used by high-frequency and low-frequency terminals is also...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00
CPCH04L1/0009H04L1/001H04L1/0011
Inventor 赵亚利谌丽许芳丽李心宇
Owner DATANG MOBILE COMM EQUIP CO LTD