Bluetooth data transmission method and device, circuit, electronic equipment and system

Abstract

The invention discloses a Bluetooth data transmission method and device, a circuit, electronic equipment and a system. The method comprises the steps: sequentially receiving the Bluetooth data in a current Bluetooth data frame sent by a data sending end; after receiving the Bluetooth data of n bits every time, performing demodulating to obtain a demodulated data symbol S(n); in the process of receiving subsequent Bluetooth data in the current Bluetooth data frame, mapping the data symbol S(n) on the PSK vector diagram to obtain a mapping symbol S'(n); determining the difference degree between the mapping symbol S'(n) and the data symbol S(n) to obtain a quality estimation result; if the quality estimation result does not meet the preset condition, stopping receiving the Bluetooth data sent by the sending end, and requesting the sending end to resend the current Bluetooth data frame after the time period of receiving and sending the current Bluetooth data frame is ended. Therefore, the receiving of the error frame can be ended in advance, and the extra power consumption of Bluetooth data receiving is reduced.

Description

technical field [0001] The invention relates to the technical field of bluetooth communication, in particular to a bluetooth data transmission method, device, circuit, electronic equipment and system. Background technique [0002] At present, Bluetooth technology has been applied in many fields, including consumer electronics, industrial control, Internet of Things and so on. When using Bluetooth technology for wireless communication transmission, the power consumption requirements of Bluetooth devices are relatively high. Bluetooth devices usually need batteries to supply power for Bluetooth devices. The battery life of Bluetooth devices is of great concern, especially for wearable applications. It is mainly reflected in the stage of wireless communication data sending and receiving. [0003] When the wireless communication environment is complex, such as when the multipath channel is bad, or when there are many interference signals (such as WiFi, etc.), the Bluetooth data...

AI Technical Summary

Problems solved by technology

Therefore, generally speaking, the CRC cyclic redundancy check is performed after the Bluetooth data frame is completely received, and the process of completely receiving the Bluetooth signal frame itself will lead to increased power consumption, which will reduce the battery life of the Bluetooth device. Affecting the user experience of Bluetooth products

[0005] In the prior art, there is also a situation where preambles are used to evaluate the quality of data transmission and reception. However, generally speaking, compared with the Bluetooth data to be transmitted, the data volume of preambles is very small, and the signal quality cannot be accurately evaluated.

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