Method for Communication Using Frame Structure in Broadband Wireless Micropower Electric Meter Reading

Abstract

The present invention claims to protect a frame structure applied to the Chirp modulation mode in the Internet of Things system, which is applied to the broadband wireless micropower electric meter reading system, which includes: the preamble part, the frame control part, the frame interval part and the load data part, the whole The frame structure uses the same carrier frequency and the same wireless bandwidth for transmission, and the preamble and frame control parts use a fixed modulation rate for transmission. The modulation rate selects the lowest modulation rate that the payload data can support, and the payload data is based on the modulation rate in the frame control. Perform dynamic adjustment and conversion; the preamble part is used for the receiver to monitor and search the frame; the frame control part is used to indicate the analysis parameters used by the payload data part, and the frame interval part is used for the receiver to receive the payload data part after receiving the modulation rate The radio frequency adjusts the time, and the payload data part is used to carry the protocol signaling and service data in the upper layers.

Description

technical field [0001] The invention belongs to the field of communication systems in the Internet of Things, and proposes a communication method using a frame structure in broadband wireless micropower electric meter reading. Background technique [0002] The diversification of IoT application scenarios and application fields has led to the diversification of communication requirements. No IoT communication mode can cover all communication needs. Even at the current stage of commercial 5G communication, various communication modes are required. . In the IoT wireless communication system, usually only shared frequency bands can be used, that is, different IoT systems compete to use these frequency bands, resulting in serious wireless interference in these frequency bands and a large channel noise floor. Therefore, Chirp spread spectrum communication is widely used in the IoT It has been promoted and used in communication, and the most typical one is the LoRaWAN system. How...

AI Technical Summary

Problems solved by technology

[0004] At present, there is no definite frame structure for broadband wireless micropower power meter reading. Other IoT systems, such as Lora Internet of Things, and narrowband power line meter reading systems use modulation methods, transmission data volume, data organization methods, and channel codecs. Different, so the frame structure is not suitable for broadband wireless micropower electric meter reading system

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