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TWS earphone communication method and system based on carrier monitoring, and TWS earphone

A technology of carrier monitoring and communication methods, which is applied in wireless communication, short-distance communication services, electrical components, etc., and can solve problems such as data out-of-sync and long delay

Pending Publication Date: 2020-10-23
VERISILICON MICROELECTRONICS SHANGHAI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the master earphone is received correctly but the slave earphone is not received correctly, if the master earphone replies to confirm that the reception is correct, this will cause the data of the master earphone and the slave earphone to be out of sync.
At present, the TWS headset needs to establish another data connection between the master headset and the slave headset to synchronize the status information of the two headsets, or the data forwarding mechanism needs to be used between the two headsets, resulting in a long delay

Method used

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  • TWS earphone communication method and system based on carrier monitoring, and TWS earphone
  • TWS earphone communication method and system based on carrier monitoring, and TWS earphone
  • TWS earphone communication method and system based on carrier monitoring, and TWS earphone

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Embodiment 1. The bluetooth device as the master device sends data packets to other bluetooth devices, and correctly receives the packet header of the data packets from the earphone

[0049] Such as image 3 As shown, in this embodiment, the slave earphone as slave2 receives the correct packet header, and confirms that the data packet is not for itself through the packet header, so no reply is made. Regardless of whether the master headset as slave1 receives the packet header correctly, it does not perform any operations according to the requirements of the Bluetooth protocol. Therefore, in the time slot of the slave Tx slot, neither the master earphone nor the slave earphone sends data.

Embodiment 2

[0050] Embodiment 2: The bluetooth device as the master device sends data packets to other bluetooth devices, but the slave earphone does not correctly receive the header of the data packet

[0051] Such as Figure 4 As shown, as slave2, the slave headset does not receive the packet header correctly, so it cannot determine the packet type and whether the data packet is sent to itself. Assuming that slave2 did not receive the packet header correctly during the R1 phase, slave2 will generate the slave2_PH_error task. slave2 first monitors the carrier for a period of time, assuming that the signal power is lower than a certain threshold value T1, it means that the channel is idle, slave2 switches to the transmission mode, the transmission frequency is the transmission frequency f(k+1) of the next slot, and transmits the signal slave2_Head. The signal is any type of signal. Of course, since slave2 is a Bluetooth device, it can send Bluetooth signals with arbitrary data. If the s...

Embodiment 3

[0052] Embodiment 3. The bluetooth device as the master device sends data packets to the TWS earphone, and the slave earphone receives it correctly and the master earphone has no other priority tasks such as Figure 5 As shown, under normal circumstances, the slave headset as slave2 receives correctly, and the master headset as slave1 has no other priority tasks. At this time, the actions of slave1 and slave2 are as follows: if slave1 receives the packet header incorrectly, it will execute the standard Bluetooth protocol without taking any action; if slave1 receives the packet header correctly, it will switch to the frequency of the next slot after the reception is completed. Carrier sense of the channel. Since slave2 receives correctly, slave2 will not generate slave2_PH_error or slave2_PL_error tasks, that is, slave2 will not emit. Therefore, slave1 finally seizes the channel to transmit. According to the standard Bluetooth protocol, if the data packet is received correctly...

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Abstract

The invention provides a TWS earphone communication method and system based on carrier monitoring, and a TWS earphone. The TWS earphone comprises a master earphone and a slave earphone. After the master earphone and the slave earphone receive the data packet sent by the Bluetooth device, the master earphone and the slave earphone carry out carrier monitoring on the channel; when the channel is occupied, the master earphone and the slave earphone do not send signals; when the channel is idle and the slave earphone does not correctly receive the data packet, the slave earphone firstly sends a signal to preempt the channel and then communicates with the Bluetooth device, and the master earphone does not send the signal when detecting that the channel is occupied; and when the channel is idleand the slave earphone correctly receives the data packet, the slave earphone does not send a signal, and the master earphone sends the signal to preempt the channel and then communicates with the Bluetooth device. According to the TWS earphone communication method and system based on carrier monitoring, the TWS earphone, the master earphone and the slave earphone realize communication with the Bluetooth device in a mode of preempting a channel through carrier monitoring, and interaction between the master earphone and the slave earphone is not needed.

Description

technical field [0001] The present invention relates to the technical field of wireless earphones, in particular to a carrier monitoring-based True Wireless Stereo (TWS) interaction method and system, and a TWS earphone. Background technique [0002] With the development of Bluetooth wireless communication technology and the widespread use of related Bluetooth products, Bluetooth wireless headsets have become a must-have item to carry around. In order to be more convenient to carry and wear, TWS earphones are more and more widely used. [0003] In the prior art, usually the master earphone establishes a bluetooth connection with a bluetooth device such as a mobile phone, and the slave earphone monitors the bluetooth connection according to corresponding parameters, so as to realize the communication between the bluetooth earphone, the master earphone and the slave earphone. Specifically, the Bluetooth device transmits a Bluetooth data packet on the link, and the Bluetooth d...

Claims

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Application Information

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IPC IPC(8): H04W4/80H04W74/08
CPCH04W4/80H04W74/0808Y02D30/70
Inventor 陈希李茂岗张皓
Owner VERISILICON MICROELECTRONICS SHANGHAI
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