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A multi-slot csma communication method, device, equipment, system and storage medium

A technology of communication equipment and communication method, applied in the field of communication, can solve the problems of increasing the network, increasing the extra cost of deploying base stations, etc.

Active Publication Date: 2021-01-29
XIAMEN FOUR FAITH COMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, there is an obvious defect in the traditional LoRa-based TDMA protocol, that is, in the same network, each device occupies a time slot, and the number of time slots is fixed, so the number of devices is also fixed. To realize the expansion of the number of devices, it is necessary to increase the number of networks, thereby increasing the additional cost of deploying base stations

Method used

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  • A multi-slot csma communication method, device, equipment, system and storage medium
  • A multi-slot csma communication method, device, equipment, system and storage medium
  • A multi-slot csma communication method, device, equipment, system and storage medium

Examples

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Embodiment 1

[0069] see Figure 1 to Figure 5 , the first embodiment of the present invention provides a multi-slot CSMA communication method, which can be executed by a multi-slot CSMA communication device, in particular, executed by one or more processors in the multi-slot CSMA communication device, and at least includes Follow the steps below:

[0070] S101. Search for a beacon delivered by an intermediate device.

[0071] In this embodiment, the intermediate device includes a base station and a relay; the base station can use any clock with a stable and non-drifting characteristic, so that the time synchronization between the multi-slot CSMA communication device and the base station, specifically The base station sends a beacon to the multi-slot CSMA communication device, so that the multi-slot CSMA communication device corrects its own system clock according to the beacon sending time.

[0072] Specifically, the base station broadcasts a beacon to all the multi-slot CSMA communicati...

no. 2 example

[0086] see Image 6 , the second embodiment of the present invention provides a second aspect, the embodiment of the present invention provides a multi-slot CSMA communication device, including:

[0087] A beacon search unit 100, configured to search for beacons issued by the intermediate device;

[0088] The beacon polling unit 200 is configured to poll the beacon period when a beacon is found; wherein, the beacon period includes an uplink time slot and a downlink time slot;

[0089] A data packet detection unit 300, configured to detect whether there is a data packet to be sent in the current cache when the uplink time slot on the beacon cycle is polled;

[0090] The frequency point idle detection unit 400 is used to extract the data packet when judging the data packet to be sent in the current cache, and perform frequency point idle detection at the starting time node of the next uplink time slot;

[0091] The data packet sending unit 500 is configured to send the extract...

no. 3 example

[0105] see Figure 7 to Figure 9 , the third embodiment of the present invention also provides a multi-slot CSMA communication system, including a platform 4, an intermediate device, and a multi-slot CSMA communication device 1; wherein,

[0106] The multi-slot CSMA communication device 1 is configured to search for a beacon issued by an intermediate device; when a beacon is found, poll the beacon period; wherein, the beacon period includes an uplink time slot and a downlink time slot slot; when polling the uplink time slot on the beacon cycle, detect whether there is a data packet to be sent in the current buffer; when judging that the current buffer has a data packet to be sent, extract the data packet, and The start time node of the uplink time slot performs frequency point idle detection; when it is detected that there is an idle frequency point in the next uplink time slot, the extracted data packet is sent to the intermediate device based on the idle frequency point;

...

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Abstract

The invention discloses a multi-slot CSMA communication method, device, device, system and computer storage medium. The method includes: searching for a beacon issued by an intermediate device; when a beacon is found, polling the beacon period; Wherein, the beacon period includes an uplink time slot and a downlink time slot; when the uplink time slot on the beacon period is polled, it is detected whether there is a data packet to be sent in the current buffer; when it is judged that the current buffer is to be sent When the data packet is extracted, the data packet is extracted, and the frequency point idle detection is performed at the starting time node of the next uplink time slot; when it is detected that there is an idle frequency point in the next uplink time slot, the extracted The data packet is sent to the intermediate device based on the idle frequency point. The present invention realizes that the multi-slot CSMA communication equipment does not need network access operation and assigns designated time slots, and can realize infinite expansion of equipment in a network.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a multi-slot CSMA communication method, device, equipment, system and storage medium. Background technique [0002] Time division multiple access is a communication technology for realizing shared transmission medium (generally radio field) or network. It allows multiple users to use the same frequency in different time slices (slots). It divides the time into periodic frames, and each frame is divided into several time slots to send signals to the base station. Under the condition of timing and synchronization, the base station can receive the signals of each mobile terminal in each time slot respectively. Do not confuse. [0003] However, there is an obvious defect in the traditional LoRa-based TDMA protocol, that is, in the same network, each device occupies a time slot, and the number of time slots is fixed, so the number of devices is also fixed. To achieve ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W74/08
CPCH04W74/0808H04W74/0825
Inventor 唐仕斌曹凯文
Owner XIAMEN FOUR FAITH COMM TECH
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