Bluetooth communication method and Bluetooth communication device
A technology of wireless communication and signal-to-noise ratio, which is applied in wireless communication, security devices, signaling distribution, etc., can solve the problems of waste of communication resources, reduce the accuracy of data judgment, increase the number of retransmissions of Bluetooth audio data frames in the air, etc., and achieve Effects of increasing reliability, reducing the number of retransmissions, and improving accuracy
Active Publication Date: 2021-04-30
恒玄科技(北京)有限公司
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Problems solved by technology
When the smart device sends a Bluetooth audio data frame to the Bluetooth device, the Bluetooth device cannot receive it correctly due to communication conditions, which causes the smart device to resend it multiple times until the Bluetooth audio data frame is correctly received by the Bluetooth device.
Bluetooth devices usually use hard judgment to demodulate the received retransmitted Bluetooth audio data frame each time, and hard judgment often misses part of the data information in the Bluetooth audio data frame, thereby reducing the accuracy of data judgment nature, resulting in an increase in the number of retransmissions of Bluetooth audio data frames in the air, resulting in unnecessary waste of communication resources
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[0020] In order to enable those skilled in the art to better understand the technical solutions of the present disclosure, the present disclosure will be described in detail below in conjunction with the accompanying drawings and specific embodiments. Embodiments of the present disclosure will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, but are not intended to limit the present disclosure. For the various steps described herein, if there is no need for a contextual relationship between each other, the order described herein as an example should not be considered as a limitation, and those skilled in the art will know that the order can be adjusted, as long as It is enough not to destroy the logic between them so that the whole process cannot be realized.
[0021] figure 1 A schematic diagram showing a communication transmission between a smart device according to an embodiment of the present disclosure and a fir...
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The present disclosure relates to a bluetooth communication method and a bluetooth communication device. The wireless communication method receives a first payload corresponding to the original data; performs first soft decision and de-whitening processing on it, generates a first payload estimate based on the first soft decision after de-whitening, and performs a calculation on the first payload estimate Demodulation: receiving the retransmitted second payload corresponding to the original data and having different bit data from the first payload, performing second soft decision and de-whitening processing on it, based on the second soft decision after de-whitening processing generating a second payload estimate and demodulating the second payload estimate; fusing the first payload estimate and the second payload estimate to determine a first fused payload estimate. In this way, when the Bluetooth device receives the Bluetooth frame retransmitted multiple times by the smart device, it can retain more information in the bit data of the Bluetooth frame, improve the accuracy of subsequent data judgments, reduce the number of retransmissions of Bluetooth frames in the air, and increase system reliability. .
Description
technical field [0001] The present disclosure relates to the field of Bluetooth communication, and more particularly, to a Bluetooth communication method and a Bluetooth communication device. Background technique [0002] Smart devices (such as smartphones, laptops, tablets, etc.) realize the transmission and playback of audio data by establishing a communication connection with Bluetooth devices (such as Bluetooth headsets, Bluetooth speakers, etc.). When the smart device sends the Bluetooth audio data frame to the Bluetooth device, due to communication conditions, the Bluetooth device cannot receive it correctly, causing the smart device to resend it multiple times until the Bluetooth audio data frame is correctly received by the Bluetooth device. Bluetooth devices usually use hard judgment to demodulate the received retransmitted Bluetooth audio data frame each time, and hard judgment often misses part of the data information in the Bluetooth audio data frame, thereby red...
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IPC IPC(8): H04W4/80H04W12/02H04L5/00H04L1/16
CPCH04W4/80H04W12/02H04L5/0055H04L1/1607H04W12/033H04L1/1867
Inventor 童伟峰涂春江张亮
Owner 恒玄科技(北京)有限公司
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