NB-IoT water meter data retransmission optimization method, system and device and storage medium

Abstract

The invention discloses an NB-IoT water meter data retransmission optimization method, system and device and a storage medium, and the method comprises the steps: obtaining a first redundancy version of first NB-IoT water meter data which is not successfully analyzed, and scrambling the first redundancy version to generate a scrambling code redundancy version; the first redundancy version and the scrambling code redundancy version are uploaded again through asynchronous double processes; selecting an optimal redundancy version from the first redundancy version and the scrambling code redundancy version, and analyzing the optimal redundancy version to obtain first message data; and performing CRC check on the first message data, if the check is successful, returning analysis success information, and if the check is unsuccessful, returning analysis failure information, and after a preset time interval, adding the optimal redundancy version to the second NB-IoT water meter data, and then performing retransmission. According to the invention, the analysis success rate of the retransmission message is improved, the retransmission times and retransmission pressure of the message are reduced, the power consumption of the terminal is saved, and the method can be widely applied to the technical field of Internet of Things communication.

Description

technical field [0001] The invention relates to the technical field of Internet of Things communication, in particular to an NB-IoT water meter data retransmission optimization method, system, device and storage medium. Background technique [0002] Water meters are generally installed in corridors, wells, and other signal-intensified coverage areas. After multiple retransmissions of the message and the network, the service platform can generally receive the message, but due to the relatively high bit error rate of the network, sometimes the message cannot be corrected at the application layer. parse. With the application of ultrasonic water meters, more and more data needs to be collected and transmitted. When the received message cannot be parsed correctly, the service platform directly discards the current message and replies to the terminal to retransmit the current message. If it fails 3 times, it will stop on the same day and retransmit the next day. However, retransm...

AI Technical Summary

Problems solved by technology

[0004] The two retransmission subjects of the NB-IoT water meter belong to different responsible parties, and are designed by the operator and the water meter factory respectively. The former is the retransmission of the TBS block in a single message, and the latter is the retransmission between messages. In addition, the unparsed previous packets are directly discarded, so the two retransmission methods are carried out independently, which will lead to excessive packet retransmission times, increase the pressure and power consumption of the terminal retransmission every other day, and also affect the packet retransmission. text parsing success rate

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