Wake-up code Chirp signal generation method for realizing low power consumption and communication method

Abstract

The invention discloses a wake-up code Chirp signal generation method for realizing low power consumption and a communication method. The wake-up code Chirp signal generation method comprises the following steps: generating a fixed part; generating a circulation part capable of identifying different terminal devices based on the identification information of the terminal devices; and combining thefixed part and the cyclic part to form a wake-up code Chirp signal. The communication method comprises the wake-up code Chirp signal generation method; terminal equipment carries out CAD detection byutilizing the fixed part, and if the detection is passed, the terminal equipment is matched with the circulating part, and otherwise, the terminal equipment enters a sleep state; and the terminal equipment is matched with the circulation part, and if the matching is passed, the receiving state is kept to continue to receive the signal, otherwise, the terminal equipment enters the sleep state, andenergy saving is achieved. According to the wake-up code Chirp signal generation method, the to-be-awakened terminal equipment can be awakened uniquely and accurately, and the frequency of false awakening is effectively reduced, so that the energy consumption is reduced, and particularly, the power consumption of the wireless low-power-consumption system can be further reduced.

Description

Technical field [0001] The present invention relates to the field of communication technology, and in particular to a method for generating a Chirp signal of a wake-up code with low power consumption and a communication method. Background technique [0002] With the continuous development of the Internet of Things, wireless low-power communication has a wide range of applications in various industries, such as smart meter reading, smart parking, vehicle tracking, pet tracking, smart agriculture, smart industry, smart cities, smart communities, etc. However, the power consumption of the wireless transceiver will directly determine the life of the wireless terminal node. In the current wireless low-power system applications on the market, the central master node and wireless terminal sub-nodes achieve energy saving through the sleep-wake mechanism. The so-called sleep-wake mechanism is that the child node wakes up periodically and performs CAD (Channel Activity Detect) detection w...

AI Technical Summary

Problems solved by technology

However, for a huge system with many sub-nodes, when the central master node needs to inquire about each sub-node in a day, for the sub-nodes, each inquiry will pass the CAD detection, which will inevitably lead to complete reception of all sub-node inquiry frames and parsing, that causes false wake-up

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