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Data transmission method, device and equipment and storage medium

A data transmission method and a technology of a data transmission device, which are applied in the field of data transmission, can solve problems such as reducing the throughput rate of a base station, and achieve the effect of maximizing the success rate

Active Publication Date: 2020-06-30
ALIBABA GRP HLDG LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that the base station sends a lot of useless data packets, which reduces the throughput of the base station

Method used

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  • Data transmission method, device and equipment and storage medium
  • Data transmission method, device and equipment and storage medium
  • Data transmission method, device and equipment and storage medium

Examples

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Embodiment Construction

[0036]Preferred embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although preferred embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0037] 【Explanation of terms】

[0038] LoRa: A low-power long-distance wireless transmission scheme based on spread spectrum technology.

[0039] LoRaWAN: A Low Power Wide Area Network (LPWAN) standard based on the open source MAC layer protocol introduced by the LoRa Alliance. This technology can provide a low-power, scalable long-range wireless network for battery-operated wireless devices.

[0040] NS: Network Server, network server, is...

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PUM

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Abstract

The invention provides a data transmission method, device and equipment and a storage medium. Before a downlink base station is selected to send a downlink message for an uplink message to a node, a receiving window of the node is selected based on link transmission delay between the downlink base station and a network server and processing delay of the network server for the uplink message, and the downlink message is sent for the selected receiving window. Therefore, for the node working in the ClassA mode, the proper receiving window can be adaptively selected for the downlink data of the node, so that the success rate of the downlink data packet is maximized.

Description

technical field [0001] The present invention relates to the field of data transmission, in particular to a data transmission method, device, equipment and storage medium. Background technique [0002] In LoRaWAN, the working mode of the terminal is divided into three types: ClassA, ClassB and ClassC. In ClassA mode, after the terminal sends the uplink data, it will open the Rx1 receiving window at an interval of Rxdelay seconds. If the downlink data is received in the Rx1 receiving window, the Rx2 window will not be opened again. If no downlink data is received in the Rx1 window, the Rx2 receiving window will generally be opened after 1s. Because the Rx2 window uses a fixed spreading factor and frequency, if all devices use the Rx2 window for downlink, it will inevitably lead to an increase in the packet collision rate of the network, thereby reducing the success rate of downlink data packets. [0003] The existing solution is that the NS sends the same command to the Rx1 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/04H04W28/06H04W24/02H04W88/06H04B17/364H04W24/08
CPCH04W28/04H04W28/06H04W24/02H04W88/06H04B17/364H04W24/08
Inventor 陈东杰王华谢玖实李国银揭鸿
Owner ALIBABA GRP HLDG LTD
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