WO2024001384A1

WO2024001384A1 - Bluetooth multimedia packet transmission method and apparatus, device and system

Info

Publication number: WO2024001384A1
Application number: PCT/CN2023/086240
Authority: WO
Inventors: 颜廷管; 余庆华; 杨建新; 王泷
Original assignee: 哲库科技(上海)有限公司
Priority date: 2022-06-28
Filing date: 2023-04-04
Publication date: 2024-01-04
Also published as: CN115175154A

Abstract

Embodiments of the present application relate to the field of Bluetooth, and disclose a Bluetooth multimedia packet transmission method and apparatus, a device and a system. The Bluetooth multimedia packet transmission method comprises: a Bluetooth device receiving a Bluetooth multimedia packet sent by a master Bluetooth device or a previous Bluetooth device; and sending the Bluetooth multimedia packet to the next Bluetooth device. At least two Bluetooth devices are enabled to share a Bluetooth multimedia packet from the master Bluetooth device by using a chain-type transmission path, so that not only is a scheme of sharing and playing back the same Bluetooth multimedia packet among a plurality of Bluetooth devices achieved, but the maximization of the bandwidth used by each Bluetooth device can also be ensured to the greatest extent.

Description

Bluetooth multimedia packet transmission method, device, equipment and system

This application claims priority to the patent application submitted on June 28, 2022, with application number 202210753601.4 and the invention name "Bluetooth multimedia packet transmission method, device, equipment and system", the entire content of which is incorporated herein by reference. Applying.

Technical field

Embodiments of the present application relate to the field of Bluetooth, and in particular to a transmission method, device, equipment and system for Bluetooth multimedia packets.

Background technique

With the explosive growth and popularity of True Wireless Studio (TWS) Bluetooth headsets, it has become very popular and common for consumers to use TWS Bluetooth headsets in their lives and work. Such as listening to music and making phone calls.

Taking listening to music as an example, consumers use their mobile phones to establish Bluetooth connections with TWS Bluetooth headsets. The mobile phone sends the Bluetooth audio packet to the TWS Bluetooth headset, and the TWS Bluetooth headset decodes the Bluetooth audio packet and plays it.

The above technology cannot meet the needs of families or lovers sharing music playback scenarios, especially in airports, subways, supermarkets and other places.

Contents of the invention

Embodiments of the present application provide a Bluetooth multimedia packet transmission method, device, equipment and system, which can realize sharing and playing of Bluetooth multimedia packets among multiple Bluetooth devices. The technical solutions are as follows:

On the one hand, embodiments of the present application provide a method for transmitting Bluetooth multimedia packets. The method is executed by a Bluetooth device. The method includes:

Receive Bluetooth multimedia packets sent by the main Bluetooth device or the previous Bluetooth device;

Send the Bluetooth multimedia packet to the next Bluetooth device.

On the other hand, embodiments of the present application provide a device for transmitting Bluetooth multimedia packets. The device includes:

Send the Bluetooth multimedia packet to the next Bluetooth device.

On the other hand, embodiments of the present application provide a Bluetooth device, which includes: a Bluetooth component;

The Bluetooth component is used to receive the Bluetooth multimedia packet sent by the main Bluetooth device or the previous Bluetooth device; and send the Bluetooth multimedia packet to the next Bluetooth device.

On the other hand, embodiments of the present application provide a Bluetooth multimedia packet transmission system. The system includes: a main Bluetooth device and at least two Bluetooth devices. The at least two Bluetooth devices use a chain transmission path to share data from the Bluetooth device. Bluetooth multimedia package for the main Bluetooth device;

Any Bluetooth device except the last Bluetooth device among the at least two Bluetooth devices is used to receive the Bluetooth multimedia packet sent by the main Bluetooth device or the previous Bluetooth device; and send the Bluetooth multimedia packet to the next Bluetooth device. Bag;

Wherein, the previous Bluetooth device is located before the Bluetooth device in the chain transmission path; and the next Bluetooth device is located after the Bluetooth device in the chain transmission path.

On the other hand, embodiments of the present application provide a Bluetooth chip, and a Bluetooth device installed with the Bluetooth chip is used to perform the Bluetooth multimedia packet transmission method as described above.

On the other hand, embodiments of the present application provide a computer storage medium that stores a computer program, and the computer program is used to be executed by a Bluetooth device to implement the Bluetooth multimedia packet transmission method as described above.

On the other hand, embodiments of the present application provide a computer program product, the computer program product stores a computer program, and the computer program is used to be executed by a Bluetooth device to implement the Bluetooth multimedia packet transmission method as described above.

In the embodiment of the present application, the current Bluetooth device receives the Bluetooth multimedia sent by the main Bluetooth device or the previous Bluetooth device. Packet; sends a Bluetooth multimedia packet to the next Bluetooth device, so that at least two Bluetooth devices use a chain transmission path to share the Bluetooth multimedia packet from the main Bluetooth device, which not only enables multiple Bluetooth devices to share and play the same Bluetooth multimedia packet This solution can also try to ensure that the bandwidth used by each Bluetooth device is maximized.

Description of drawings

Figure 1 shows a schematic diagram of one-to-many sharing of Bluetooth multimedia packets according to an exemplary embodiment of the present application;

Figure 2 shows a schematic diagram of the transmission of Bluetooth multimedia packets based on a chain propagation path according to an exemplary embodiment of the present application;

Figure 3 is a schematic diagram of the transmission of Bluetooth multimedia packets based on a chain propagation path according to an exemplary embodiment of the present application;

Figure 4 is a flow chart of a Bluetooth multimedia packet transmission method illustrated in an exemplary embodiment of the present application;

Figure 5 is a schematic diagram of the transmission of Bluetooth multimedia packets based on a chain propagation path according to an exemplary embodiment of the present application;

Figure 6 is a schematic diagram of a control link and a data link between a master Bluetooth device and at least two Bluetooth devices according to an exemplary embodiment of the present application;

Figure 7 is a schematic diagram of a Bluetooth multimedia packet playback method in a song playback scenario according to an exemplary embodiment of the present application;

Figure 8 is a schematic diagram of a method for playing Bluetooth multimedia packets in a VR game scenario according to an exemplary embodiment of the present application;

Figure 9 is a flow chart of a Bluetooth multimedia packet transmission/playback method according to an exemplary embodiment of the present application;

Figure 10 is a schematic diagram of a one-to-many Bluetooth sharing playback scenario according to an exemplary embodiment of the present application;

Figure 11 is a schematic diagram of a one-to-many Bluetooth sharing playback scenario according to an exemplary embodiment of the present application;

Figure 12 is a schematic diagram of a Bluetooth device shown in an exemplary embodiment of the present application;

Figure 13 shows a block diagram of a Bluetooth device or a first Bluetooth sub-device or a second Bluetooth sub-device according to an exemplary embodiment of the present application.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

The "plurality" mentioned in this article means two or more than two. "And/or" describes the relationship between associated objects, indicating that there can be three relationships. For example, A and/or B can mean: A exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the related objects are in an "or" relationship.

This application hopes to provide a technical solution for a master Bluetooth device to share and play the same Bluetooth multimedia package to multiple (slave) Bluetooth devices. For example, a mobile phone can share the same song to multiple Bluetooth headsets for playback via Bluetooth connection.

Figure 1 shows an exemplary solution in which a mobile phone 10 transmits the same Bluetooth audio packet to four Bluetooth headsets. Assume that the Bluetooth transmission bandwidth is W. The mobile phone 10 uses the bandwidth W1 to send a Bluetooth audio packet to the first Bluetooth headset 21; uses the bandwidth W2 to send a Bluetooth audio packet to the second Bluetooth headset 22; uses the bandwidth W3 to send a Bluetooth audio packet to the third Bluetooth headset 23. Bluetooth audio packet; using bandwidth W4 to send the Bluetooth audio packet to the fourth Bluetooth headset 24.

In the above transmission process, W=W1+W2+W3+W4; assuming that the four Bluetooth headsets are of the same type or have the same transmission capabilities, that is, W1=W2=W3=W4=W/4. For each Bluetooth headset, you can only enjoy W/4 bandwidth. High-quality songs such as lossless music and high-resolution audio (Hi-Res) have higher requirements for Bluetooth bandwidth, and the above exemplary solution cannot meet the transmission needs.

Taking a two-channel song with 192khz and 24bit sampling rate as an example, the PCM rate reaches 10Mbps. Assuming that the Bluetooth encoding compression rate is 70%, the bandwidth requirement for Bluetooth is 7Mbps. 1/4 of the Bluetooth bandwidth is used to transmit high-quality audio, which is difficult to achieve. Moreover, in the above example solution, when the number of Bluetooth headsets that need to be shared increases, the space occupied by each Bluetooth headset will The narrower the bandwidth, the higher the number of Bluetooth headsets that can be shared by the same mobile phone.

FIG. 2 shows an exemplary solution in which a mobile phone 10 transmits the same Bluetooth audio packet to four pairs of Bluetooth headsets.

The mobile phone 10 uses the bandwidth W/2 to send the left channel Bluetooth audio packet to the left channel earphone in the first pair of Bluetooth earphones 21, and uses the bandwidth W/2 to send the right channel to the right channel earphone in the first pair of Bluetooth earphones 21. Bluetooth audio package. At the same time, the first pair of Bluetooth headphones 21 also plays the left channel Bluetooth audio packet and the right channel Bluetooth audio packet.

The left channel earphone in the first pair of Bluetooth earphones 21 uses the bandwidth W/2 to send the left channel Bluetooth audio packet to the left channel earphone in the second pair of Bluetooth earphones 22 , and the right channel earphone in the first pair of Bluetooth earphones 21 The right channel Bluetooth audio packet is sent to the right channel earphone in the second pair of Bluetooth earphones 22 using the bandwidth W/2. At the same time, the second pair of Bluetooth headphones 22 also plays the left channel Bluetooth audio packet and the right channel Bluetooth audio packet.

The left channel earphone in the second pair of Bluetooth earphones 22 uses the bandwidth W/2 to send the left channel Bluetooth audio packet to the left channel earphone in the third pair of Bluetooth earphones 23 , and the right channel earphone in the second pair of Bluetooth earphones 22 The bandwidth W/2 is used to send the right channel Bluetooth audio packet to the right channel earphone in the third pair of Bluetooth earphones 23 . At the same time, the third pair of Bluetooth headphones 23 also plays the left channel Bluetooth audio package and the right channel Bluetooth audio package.

The left channel earphone in the third pair of Bluetooth earphones 23 uses the bandwidth W/2 to send the left channel Bluetooth audio packet to the left channel earphone in the fourth pair of Bluetooth earphones 24 , and the right channel earphone in the third pair of Bluetooth earphones 23 The right channel Bluetooth audio packet is sent to the right channel earphone in the fourth pair of Bluetooth earphones 24 using the bandwidth W/2. At the same time, the fourth pair of Bluetooth headphones 24 also plays the left channel Bluetooth audio package and the right channel Bluetooth audio package.

In the above exemplary solution, the bandwidth used by the mobile phone: W = sending bandwidth W/2 + sending bandwidth W/2; the bandwidth used by the Bluetooth headset: W = receiving bandwidth W/2 + sending bandwidth W/2, reaching the Bluetooth bandwidth Maximize the use of capabilities and realize a multi-headset sharing solution where high-quality audio does not have to suffer from audio quality degradation due to the loss of Bluetooth bandwidth.

Figure 3 shows a block diagram of a Bluetooth multimedia packet transmission system provided by an exemplary embodiment of the present application. The system includes a master Bluetooth device 10 and at least two (slave) Bluetooth devices 21-2n.

The master Bluetooth device 10 is the source device that provides Bluetooth multimedia data. Device types of the main Bluetooth device 10 include mobile phones, tablets, televisions, desktops, game consoles, virtual reality (Virtual Reality, VR) devices, augmented reality (Augmented Reality, AR) devices, etc.

At least two Bluetooth devices 21-2n share the Bluetooth multimedia packets from the main Bluetooth device 10 using a chain transmission path. Each Bluetooth device in the chain sharing path is connected in sequence. The i-th Bluetooth device among at least two Bluetooth devices transmits the Bluetooth multimedia packet to the i+1-th Bluetooth device, where i is an integer and the initial value is 1 (or 0). For example, the first Bluetooth device 21 sends a Bluetooth multimedia packet to the second Bluetooth device 22, and the second Bluetooth device 22 sends a Bluetooth multimedia packet to the third Bluetooth device, and so on, and the n-1th Bluetooth device sends a Bluetooth multimedia packet to the nth Bluetooth device. A Bluetooth device 2n sends a Bluetooth multimedia packet.

Exemplarily, any Bluetooth device except the last Bluetooth device among the at least two Bluetooth devices 21-2n is used to receive the Bluetooth multimedia packet sent by the main Bluetooth device 10 or the previous Bluetooth device; send it to the next Bluetooth device. Bluetooth multimedia package;

Wherein, the previous Bluetooth device is the Bluetooth device located before the Bluetooth device on the chain transmission path among at least two Bluetooth devices; the next Bluetooth device is the Bluetooth device located after the Bluetooth device on the chain transmission path among at least two Bluetooth devices. equipment.

Exemplarily, the Bluetooth device 21-2n also plays Bluetooth multimedia packets. Since there are usually multiple Bluetooth multimedia packages, all or part of the multiple Bluetooth multimedia packages can be played on any one of at least two Bluetooth devices. For example, each Bluetooth device plays all Bluetooth multimedia packets, or each Bluetooth device only needs to play a part of the Bluetooth multimedia packets.

The above-mentioned at least two Bluetooth devices are Bluetooth devices of the same type, Bluetooth devices of different types, or Bluetooth devices of different types. The Bluetooth transmission capabilities of the at least two Bluetooth devices mentioned above are the same, or different, or not exactly the same.

In different embodiments, the above-mentioned chain transmission path can be understood as: chain path, chain sharing path and other synonyms.

One-to-many sharing based on chain transmission path:

Figure 4 shows a flow chart of a Bluetooth multimedia packet transmission method provided by an exemplary embodiment of the present application. This embodiment illustrates that the method is executed by the Bluetooth device shown in FIG. 3 . The method includes:

Step 402: Receive the Bluetooth multimedia packet sent by the main Bluetooth device or the previous Bluetooth device;

At least two Bluetooth devices share at least one Bluetooth multimedia packet from the master Bluetooth device using a chain transmission path. In different embodiments, the above-mentioned Bluetooth multimedia packets can be understood as: Bluetooth frames, Bluetooth multimedia frames, Bluetooth audio frames, Bluetooth video frames, Bluetooth VR frames, Bluetooth AR frames, Bluetooth game control frames, Bluetooth audio packets, and Bluetooth video packets. , Bluetooth VR package, Bluetooth AR package, Bluetooth game control package, etc.

The Bluetooth device receives the Bluetooth multimedia packet sent by the master Bluetooth device on the chain transmission path, or the Bluetooth device receives the Bluetooth multimedia packet sent by the previous Bluetooth device on the chain transmission path.

Assuming that at least two Bluetooth devices start counting from 0, when the Bluetooth device is the 0th Bluetooth device among at least two Bluetooth devices, receive the Bluetooth multimedia packet sent by the main Bluetooth device; when the Bluetooth device is the 0th Bluetooth device among at least two Bluetooth devices, When there are i(>0) Bluetooth devices, receive the Bluetooth multimedia packet sent by the i-1th Bluetooth device.

Assuming that at least two Bluetooth devices start counting from 1, when the Bluetooth device is the first Bluetooth device among at least two Bluetooth devices, receive the Bluetooth multimedia packet sent by the main Bluetooth device; when the Bluetooth device is the first Bluetooth device among at least two Bluetooth devices, When there are i(>1) Bluetooth devices, receive the Bluetooth multimedia packet sent by the i-1th Bluetooth device.

The i-1th Bluetooth device is also the previous Bluetooth device. The previous Bluetooth device, Bluetooth device, and next Bluetooth device share the Bluetooth multimedia packet from the main Bluetooth device using a chain transmission path. The previous Bluetooth device is the Bluetooth device located before the Bluetooth device in the chain transmission path; the next Bluetooth device is the Bluetooth device located after the Bluetooth device in the chain transmission path. The chain transmission path is composed of at least two Bluetooth devices ordered in sequence. For example, unicast communication is performed between the i-th Bluetooth device and the i+1-th Bluetooth device based on Bluetooth technology.

Step 404: Send the Bluetooth multimedia packet to the next Bluetooth device.

When the Bluetooth device is the i-th Bluetooth device among at least two Bluetooth devices and is not the last Bluetooth device, send the Bluetooth multimedia packet to the i+1-th Bluetooth device. That is, the Bluetooth device sends the Bluetooth multimedia packet to the next Bluetooth device on the chain transmission path.

Optionally, all or part of the at least two Bluetooth devices are used to play Bluetooth multimedia packages. For one Bluetooth device among at least two Bluetooth devices, it is possible not to play any Bluetooth multimedia packet, but only forward and transmit it to the next Bluetooth device; or to play a part of the Bluetooth multimedia packet, such as the Bluetooth multimedia packet identified as needing to be played by itself; Or, play all Bluetooth multimedia packages. Which Bluetooth multimedia packets each Bluetooth device plays depends on the specific implementation and will not be described again.

Optionally, step 404 may not be performed for the last Bluetooth device among the at least two Bluetooth devices.

To sum up, the method of this embodiment uses the current Bluetooth device to receive the Bluetooth multimedia packet sent by the main Bluetooth device or the previous Bluetooth device; and sends the Bluetooth multimedia packet to the next Bluetooth device, so that at least two Bluetooth devices adopt chain transmission. Path sharing of Bluetooth multimedia packets from the main Bluetooth device not only enables multiple Bluetooth devices to share and play the same Bluetooth multimedia packet, but also ensures that the bandwidth used by each Bluetooth device is maximized.

The above-mentioned Bluetooth device may be a mono-channel Bluetooth device, a dual-channel Bluetooth device, or a multi-channel Bluetooth device.

In some embodiments, a Bluetooth device includes a first Bluetooth component and a second Bluetooth component. The first Bluetooth component and the second Bluetooth component are components with Bluetooth transmission capabilities, such as Bluetooth chips that support duplex communication. The first Bluetooth component and the second Bluetooth component have separate bodies, such as TWS earphones; or the first Bluetooth component and the second Bluetooth component are located in the same body, such as a Bluetooth speaker, a Bluetooth handle, and a Bluetooth remote control.

The first Bluetooth component and the second Bluetooth component may be divided according to sound channels, functions, or data to be transmitted, which is not limited in this embodiment. For example, the first Bluetooth component is a left channel Bluetooth component, and the second Bluetooth component is a right channel Bluetooth component. For another example, the first Bluetooth component is used to transmit audio, and the second Bluetooth component is used to Transmit game control stream.

In some embodiments, taking the Bluetooth device including a first Bluetooth component and a second Bluetooth component as an example, the Bluetooth device is the device adjacent to the main Bluetooth device among at least two Bluetooth devices, that is, the 0th Bluetooth device (slave). In the case of the first Bluetooth device (counting from 1) or the first Bluetooth device (counting from 1), the Bluetooth device receives the Bluetooth multimedia packet sent by the main Bluetooth device, including:

The first Bluetooth component of the Bluetooth device receives the first Bluetooth multimedia packet sent by the first Bluetooth component of the master Bluetooth device; the second Bluetooth component of the Bluetooth device receives the second Bluetooth multimedia packet sent by the second Bluetooth component of the master Bluetooth device.

For example, the receiving bandwidth occupied by the first Bluetooth component when receiving the first Bluetooth multimedia packet is less than or equal to W/2; the receiving bandwidth occupied by the second Bluetooth component when receiving the second Bluetooth multimedia packet is less than or equal to W/2. Alternatively, the bandwidth occupied by the first Bluetooth component and the second Bluetooth component in the process of receiving the Bluetooth multimedia packet is less than or equal to the receiving bandwidth W.

With reference to Figure 2, the left channel Bluetooth component of the Bluetooth device receives the left channel Bluetooth multimedia packet sent by the left channel Bluetooth component of the main Bluetooth device; the right channel Bluetooth component of the Bluetooth device receives the right channel Bluetooth component of the main Bluetooth device. Right channel Bluetooth multimedia packet sent.

In some embodiments, taking the Bluetooth device including a first Bluetooth component and a second Bluetooth component as an example, the Bluetooth device is not the device adjacent to the main Bluetooth device among the at least two Bluetooth devices, that is, the i-th Bluetooth device (i is greater than 0, counting from 0) or the i-th Bluetooth device (i is greater than 1, counting from 1), the Bluetooth device receives the Bluetooth multimedia packet sent by the first Bluetooth device, including:

The first Bluetooth component of the Bluetooth device receives the first Bluetooth multimedia packet sent by the first Bluetooth component of the first Bluetooth device; the second Bluetooth component of the Bluetooth device receives the second Bluetooth multimedia packet sent by the second Bluetooth component of the first Bluetooth device.

With reference to Figure 2, the left channel Bluetooth component of the Bluetooth device receives the left channel Bluetooth multimedia packet sent by the left channel Bluetooth component of the previous Bluetooth device; the right channel Bluetooth component of the Bluetooth device receives the right channel of the previous Bluetooth device. Right channel Bluetooth multimedia packet sent by the Bluetooth component.

In some embodiments, taking a Bluetooth device including a first Bluetooth component and a second Bluetooth component as an example, the above-mentioned Bluetooth device sends a Bluetooth multimedia packet to the next Bluetooth device, including:

The first Bluetooth component of the Bluetooth device sends a Bluetooth multimedia packet to a Bluetooth component of the next Bluetooth device; the second Bluetooth component of the Bluetooth device sends a second Bluetooth multimedia packet to the second Bluetooth component of the next Bluetooth device.

For example, the sending bandwidth occupied by the first Bluetooth component when sending the first Bluetooth multimedia packet is less than or equal to W/2, and the sending bandwidth occupied by the second Bluetooth component when sending the second Bluetooth multimedia packet is less than or equal to W/2. Alternatively, the bandwidth occupied by the first Bluetooth component and the second Bluetooth component in the process of sending the Bluetooth multimedia packet is less than or equal to the sending bandwidth W.

With reference to Figure 2, the left channel Bluetooth component of the Bluetooth device sends the left channel Bluetooth multimedia packet to the left channel Bluetooth component of the next Bluetooth device; the right channel Bluetooth component of the Bluetooth device sends the right channel Bluetooth component of the next Bluetooth device to the right channel Bluetooth component of the next Bluetooth device. Component sends right channel Bluetooth multimedia packets.

In the above embodiment, the first Bluetooth multimedia packet occupies the first sub-bandwidth of the Bluetooth transmission bandwidth when sent; the second Bluetooth multimedia packet occupies the second sub-bandwidth of the Bluetooth transmission bandwidth when sent; the first Bluetooth multimedia packet occupies the second sub-bandwidth of the Bluetooth transmission bandwidth when sent; When receiving, it occupies the third sub-bandwidth of the Bluetooth receiving bandwidth; when receiving the second Bluetooth multimedia packet, it occupies the fourth sub-bandwidth of the Bluetooth receiving bandwidth.

The first sub-bandwidth is less than or equal to one-half of the Bluetooth transmission bandwidth, the second sub-bandwidth is less than or equal to one-half of the Bluetooth transmission bandwidth; the third sub-bandwidth is less than or equal to one-half of the Bluetooth reception bandwidth, and the fourth sub-bandwidth is less than or equal to one-half of the Bluetooth transmission bandwidth. The sub-bandwidth is less than or equal to one-half of the Bluetooth receive bandwidth.

Taking the first sub-bandwidth, second sub-bandwidth, third sub-bandwidth and fourth sub-bandwidth as an example, for the main Bluetooth For devices, the Bluetooth bandwidth used by the main Bluetooth device is the entire Bluetooth transmission bandwidth: W/2+W/2=W; for the first Bluetooth component, the Bluetooth bandwidth used by the first Bluetooth component is: W/2 Bluetooth sending bandwidth + W/2 Bluetooth receiving bandwidth = W; for the second Bluetooth component, the Bluetooth bandwidth used by the second Bluetooth component is: W/2 Bluetooth sending bandwidth + W/2 Bluetooth receiving bandwidth = W, that is, the main Bluetooth device, the first Bluetooth component and the second Bluetooth component in the above embodiment all use the entire Bluetooth bandwidth W, maximizing the use of the Bluetooth bandwidth to ensure transmission quality and support high-quality audio and video packets. transmission.

The above embodiment is exemplified by taking two Bluetooth components in each Bluetooth device. In some embodiments, there may be three or more Bluetooth components in each Bluetooth device. As shown in FIG. 5 , the main Bluetooth device 30 is a game console, and the game running on the game console 30 is a cloud game. Each user uses his own corresponding Bluetooth device. A Bluetooth device includes three Bluetooth components: a left-channel headset, a right-channel headset, and a game controller. The left channel earphone is used to play the left channel Bluetooth audio package, the right channel earphone is used to play the right channel Bluetooth audio package, the game controller is used to receive the game feedback data of the game console 30 for vibration feedback or sound and light feedback, and/or Upload handle operation data to the game console 30 .

In some embodiments, the Bluetooth device, the previous Bluetooth device, and the next Bluetooth device each include a first Bluetooth component, a second Bluetooth component, and a third Bluetooth component.

The first Bluetooth component of the Bluetooth device receives the first Bluetooth multimedia packet sent by the first Bluetooth component of the previous Bluetooth device; the second Bluetooth component of the Bluetooth device receives the second Bluetooth multimedia packet sent by the second Bluetooth component of the previous Bluetooth device; The third Bluetooth component of the Bluetooth device receives the third Bluetooth multimedia packet sent by the third Bluetooth component of the previous Bluetooth device.

The first Bluetooth component of the Bluetooth device sends the first Bluetooth multimedia packet to the first Bluetooth component of the next Bluetooth device; the second Bluetooth component of the Bluetooth device sends the second Bluetooth multimedia packet to the second Bluetooth component of the next Bluetooth device; the Bluetooth device The third Bluetooth component sends the third Bluetooth multimedia packet to the third Bluetooth component of the next Bluetooth device.

Referring to Figure 5 as an example, the Bluetooth bandwidth used by the first Bluetooth device (left channel) is: Bluetooth transmission bandwidth of W2/5 + Bluetooth reception bandwidth of W2/5 = W4/5. The Bluetooth bandwidth used by the second Bluetooth device (right channel) is: Bluetooth sending bandwidth of W2/5 + Bluetooth receiving bandwidth of W2/5 = W4/5. The Bluetooth bandwidth used by the third Bluetooth device (game controller) is: Bluetooth sending bandwidth of W1/5 + Bluetooth receiving bandwidth of W1/5 = W2/5. Although the first Bluetooth device or the second Bluetooth device does not occupy the entire Bluetooth bandwidth, it also occupies 80% of the Bluetooth bandwidth it supports, and also supports synchronous transmission of the third Bluetooth device.

In some embodiments, the Bluetooth device, the previous Bluetooth device, and the next Bluetooth device each include n Bluetooth components.

The i-th Bluetooth component of the Bluetooth device receives the i-th Bluetooth multimedia packet sent by the i-th Bluetooth component of the previous Bluetooth device. The i-th Bluetooth component of the Bluetooth device sends the i-th Bluetooth multimedia packet to the i-th Bluetooth component of the next Bluetooth device. i is an integer not greater than n.

In some embodiments, unicast communication is used when transmitting the above-mentioned Bluetooth multimedia packets between the main Bluetooth device and the Bluetooth device, between the previous Bluetooth device and the Bluetooth device, and between the Bluetooth device and the next Bluetooth device. Multicast communication or broadcast communication. The first Bluetooth component in two adjacent Bluetooth devices uses unicast communication when transmitting the first Bluetooth multimedia packet, and the second Bluetooth component in the two adjacent Bluetooth devices uses unicast when transmitting the second Bluetooth multimedia packet. communication.

In some embodiments, the above-mentioned Bluetooth multimedia packet supports a retransmission mechanism during transmission. That is, the first Bluetooth multimedia packet and the second Bluetooth multimedia packet support a retransmission mechanism during transmission. For the k-th Bluetooth multimedia packet, when an acknowledgment feedback (ACK) is received, the k+1-th Bluetooth multimedia packet is transmitted; when a negative feedback (NACK) is received, the k-th Bluetooth multimedia packet is retransmitted. Since Bluetooth transmission is prone to interference, packet loss or decoding errors during transmission, supporting the retransmission mechanism can ensure the transmission quality of high-quality audio data. In Bluetooth broadcast or multicast, the retransmission mechanism cannot be supported.

In some embodiments, the transmission process of the above-mentioned Bluetooth multimedia packet is controlled by the host Bluetooth device. As shown in FIG. 6 , control links are established between the main Bluetooth device 10 and the four Bluetooth devices 21 - 24 . The control links are used to transmit control information related to the transmission process of Bluetooth multimedia packets. The control information includes: the address of the previous Bluetooth device, the address of the next Bluetooth device, the serial number of the Bluetooth multimedia packet, the feedback information (ACK/NACK) of the Bluetooth multimedia packet, and the initial transmission/retransmission of the Bluetooth multimedia packet. information, the identification of the Bluetooth device that needs to play the Bluetooth multimedia package, etc. A data link is established between the main Bluetooth device 10 and the Bluetooth device 21, between the Bluetooth device 21 and the Bluetooth device 22, between the Bluetooth device 22 and the Bluetooth device 23, and between the Bluetooth device 23 and the Bluetooth device 24. The data link Used to transmit Bluetooth multimedia packets. In the case where the Bluetooth devices 21-24 include a left channel Bluetooth component and a right channel Bluetooth component, a left channel data link is established between each left channel Bluetooth component, and a right channel data link is established between each right channel Bluetooth component. Audio channel data link.

However, it is not excluded that in some embodiments, the transmission process between the main Bluetooth device 10 and the 0/1th Bluetooth device is controlled by the main Bluetooth device. The transmission process between the i-th (greater than 0 or 1) Bluetooth device and the i+1-th Bluetooth device is controlled by the i-th Bluetooth device. That is to say, the transmission process of the i-th Bluetooth device can be controlled by itself rather than by the main Bluetooth device 10 . These two control methods can also be implemented in combination. For example, a control link is established between the Bluetooth devices 21-23 and the main Bluetooth device 10 in Figure 6, and the transmission process between the Bluetooth devices 21-23 is controlled by the main Bluetooth device 10; Since the Bluetooth device 24 is far away from the main Bluetooth device 10, no control link is established between the Bluetooth device 24 and the main Bluetooth device 10. The transmission process between the Bluetooth device 23 and the Bluetooth device 24 is controlled by the Bluetooth device 23.

Playback of Bluetooth multimedia package:

In some embodiments, the above method further includes: the Bluetooth device plays the Bluetooth multimedia package. Since the Bluetooth multimedia package is at least one. The Bluetooth device that plays Bluetooth multimedia packages includes at least one of the following:

·Bluetooth devices play all Bluetooth multimedia packages;

Taking multiple Bluetooth devices to share and play the same song as an example, as shown in Figure 7, the song audio stream includes multiple Bluetooth audio packets "0", and the Bluetooth audio packet "0" is required by all or every Bluetooth device. The played audio packet is the Bluetooth audio packet that both the Bluetooth device 21 and the Bluetooth device 22 need to play.

·The Bluetooth device plays a portion of the Bluetooth multimedia package.

For example, the Bluetooth multimedia package is the Bluetooth audio package in VR games, and different Bluetooth devices correspond to different users. As shown in Figure 8, there are some Bluetooth audio packets "0" that every Bluetooth device needs to play, such as Bluetooth music packets related to background music; there are some Bluetooth audio packets that only need to be played by designated Bluetooth devices. . For example, Bluetooth audio package "1" is the system feedback sound effect of the game character operated by user A when releasing skills. It only needs to be played by the Bluetooth device 21 used by user A, and does not need to be played by Bluetooth devices used by other users; Bluetooth audio package "2" is The system feedback sound effect when the game character operated by user B releases the skill only needs to be played by the Bluetooth device 22 used by user B, and does not need to be played by the Bluetooth devices used by other users.

In different embodiments, the Bluetooth multimedia package includes at least one of the following types:

·Bluetooth multimedia package required for playback by all Bluetooth devices;

·Bluetooth multimedia packages that need to be played by designated or specific Bluetooth devices;

Wherein, the designated or specific Bluetooth device is the Bluetooth device specified by the device identification and/or type identification carried in the Bluetooth multimedia package.

·Bluetooth multimedia package that requires the first multimedia component to play;

·Bluetooth multimedia package that requires a second multimedia component to play;

·Bluetooth multimedia packets that need to be played by the first multimedia component in a designated or specific Bluetooth device;

·Bluetooth multimedia packets that need to be played by the second multimedia component in a designated or specific Bluetooth device.

Etc., I won’t go into details one by one.

In some embodiments, a Bluetooth device includes a first multimedia component and a second multimedia component. The first multimedia component of the Bluetooth device plays the first Bluetooth multimedia package; the second multimedia component of the Bluetooth device plays the second Bluetooth multimedia package. Taking the first multimedia component as a left channel component and the second multimedia component as a right channel component as an example, the left channel component of the Bluetooth device plays the left channel Bluetooth multimedia packet; the right channel component of the Bluetooth device plays Right channel Bluetooth multimedia package.

Exemplarily, the first multimedia component includes: a first decoding component, a first digital to analog converter (Digital to Analog Converter, DAC), a first power amplifier (Amplifier for Power, AMP), and a first playback component; Bluetooth set up The first component of the device plays the first Bluetooth multimedia packet, including: the first decoding component decodes the first Bluetooth multimedia packet into first Pulse Code Modulation (PCM) data; the first DAC converts the first PCM data into The first analog signal; the first AMP amplifies the first analog signal and then outputs it to the first playback component for playback.

Exemplarily, the second multimedia component includes: a second decoding component, a second DAC, a second AMP and a second playing component; the second component of the Bluetooth device plays the second Bluetooth multimedia package, including: the second decoding component The second Bluetooth multimedia packet is decoded into second PCM data; the second DAC converts the second PCM data into a second analog signal; the second AMP amplifies the second analog signal and outputs it to the second playback component for playback.

Taking the first multimedia component as a left channel component and the second multimedia component as a right channel component as an example, as shown in Figure 9: the mobile phone 10 performs Bluetooth audio processing on the PCM data provided by the audio source according to the left and right channel data respectively. Encode to get the left channel Bluetooth audio packet and the right channel Bluetooth audio packet. The Bluetooth sending component 11 in the mobile phone 10 sends the left channel Bluetooth audio packet and the right channel Bluetooth audio packet to the Bluetooth device.

The left channel Bluetooth headset 31 of the Bluetooth device includes: a left channel Bluetooth receiving component 32, a left channel PCM (decoding component) 33, a left channel DAC 34 and a left channel AMP 35, a left channel playing component 36, and a left channel Bluetooth Send part 37. After receiving the left channel Bluetooth audio packet, the left channel Bluetooth receiving component 32 transmits the left channel Bluetooth audio packet to the left channel PCM 33, and the left channel PCM 33 decodes the left channel Bluetooth audio packet into left channel PCM data. ; The left channel DAC34 converts the left channel PCM data into a left channel analog signal; the left channel AMP35 amplifies the left channel analog signal and outputs it to the left channel playback component 36 for playback. On the other hand, the left channel Bluetooth sending component 37 also sends the left channel Bluetooth audio packet to the next left channel Bluetooth headset. In some embodiments, the left channel Bluetooth receiving component 32 and the left channel Bluetooth sending component 37 are implemented as the same Bluetooth chip, that is, the first Bluetooth component.

The right channel Bluetooth headset 41 of the Bluetooth device includes: right channel Bluetooth receiving component 42, right channel PCM (decoding component) 43, right channel DAC 44 and right channel AMP 45, right channel playback component 46, right channel Bluetooth Send component 47. After receiving the right channel Bluetooth audio packet, the right channel Bluetooth receiving component 42 transmits the right channel Bluetooth audio packet to the right channel PCM 43, and the right channel PCM 43 decodes the right channel Bluetooth audio packet into right channel PCM data. ; The right channel DAC44 converts the right channel PCM data into a right channel analog signal; the right channel AMP45 amplifies the right channel analog signal and outputs it to the right channel playback component 46 for playback. On the other hand, the right channel Bluetooth sending component 47 also sends the right channel Bluetooth audio packet to the next right channel Bluetooth headset. In some embodiments, the right channel Bluetooth receiving component 42 and the right channel Bluetooth sending component 47 are implemented as the same Bluetooth chip, that is, the second Bluetooth component.

Establishment of chain transmission path:

In some embodiments, the establishment of the chain transmission path is controlled by the master Bluetooth device. For example, the master Bluetooth device is based on the signal quality of each Bluetooth device, the distance between each Bluetooth device and the master Bluetooth device, the location of each Bluetooth device, the transmission capability of each Bluetooth device, and the user information of each Bluetooth device. , at least one factor in the device type of each Bluetooth device, selecting at least two Bluetooth devices and sorting the selected at least two Bluetooth devices to construct a chain transmission path. Then, the master Bluetooth device configures the address information of the previous Bluetooth device and/or the next Bluetooth device to each Bluetooth device in the chain transmission path. That is to say, for Bluetooth devices, the previous Bluetooth device and/or the next Bluetooth device are configured by the main Bluetooth device.

For example, the master Bluetooth device sorts the Bluetooth devices in order from high to low signal quality to build a chain transmission path. For another example, the master Bluetooth device sorts the Bluetooth devices in order of distance from near to far to build a chain transmission path. For another example, the master Bluetooth device sorts the Bluetooth devices in order from high to low according to transmission capabilities (such as bandwidth) to build a chain transmission path and so on.

In some embodiments, the next Bluetooth device is autonomously selected by the Bluetooth device. That is, the main Bluetooth device selects the 0/1th Bluetooth device based on the selection factors, and the i-th (greater than 0/1) Bluetooth device selects the i+1th Bluetooth device based on the selection factors to build a chain transmission path. The selection factors include: the signal quality of each Bluetooth device, the distance between each Bluetooth device and the main Bluetooth device, the location of each Bluetooth device, the transmission capability of each Bluetooth device, the user information of each Bluetooth device, each Bluetooth device at least one factor in the device type. Different Bluetooth devices on the chain transmission path The selection factors used can be the same or different.

Dynamic changes of chain transmission paths:

Because the location of a Bluetooth device may change, the transmission quality between a Bluetooth device and the next Bluetooth device changes dynamically. Therefore, the next Bluetooth device for each Bluetooth device supports dynamic changes. During the transmission of Bluetooth multimedia packets, the Bluetooth device changes to the next Bluetooth device.

In some embodiments, the Bluetooth device changes to the next Bluetooth device based on control of the primary Bluetooth device. In some embodiments, the Bluetooth device changes the Bluetooth device based on the change factor. The changing factors include the signal quality of each Bluetooth device, the distance between each Bluetooth device and the main Bluetooth device, the location of each Bluetooth device, the transmission capability of each Bluetooth device, the user information of each Bluetooth device, and the location of each Bluetooth device. At least one factor in device type.

The product implementation of the above Bluetooth device may have multiple implementation methods. In an illustrative example, the above-mentioned Bluetooth device is implemented as a TWS headset. As shown in Figure 10, when the baby 51 is asleep, in order not to disturb the sleep of the baby 51. Dad 52, mom 53 and brother 54 each wore a pair of TWS earphones to share the film and television works played on the TV. Each pair of TWS earphones included left-channel earphones and right-channel earphones. In another illustrative example, as shown in Figure 11, the above-mentioned Bluetooth device is implemented as a set of commercial AR devices. The set of commercial AR devices includes 4 groups of single-person devices, and the 4 groups of single-person devices are respectively used by users 51, Used by User 52, User 53 and User 54, each set of single-person devices includes AR glasses, left-channel earphones, and right-channel earphones. When the AR character 55 observed in the AR glasses explains information on the electronic screen, all four groups of single devices can hear the voice of the AR character 55. The embodiments of this application do not limit the specific product form of the Bluetooth device.

It should be noted that the above-mentioned embodiments can also be freely separated and combined according to the understanding of those skilled in the art, and the embodiments of this application will not be described again.

Figure 12 shows a block diagram of a Bluetooth device provided by an exemplary embodiment of the present application. The Bluetooth device includes:

The Bluetooth receiving module 61 is used to receive the Bluetooth multimedia packet sent by the main Bluetooth device or the previous Bluetooth device;

The Bluetooth sending module 62 is used to send the Bluetooth multimedia packet to the next Bluetooth device.

In some embodiments, the Bluetooth receiving module 61 and the Bluetooth sending module 62 can be implemented as the same Bluetooth module or Bluetooth transceiver module.

In some embodiments, the previous Bluetooth device, the Bluetooth device, and the next Bluetooth device use a chain transmission path to share the Bluetooth multimedia packet from the main Bluetooth device;

The previous Bluetooth device is a Bluetooth device located before the Bluetooth device in the chain transmission path;

The next Bluetooth device is a Bluetooth device located after the Bluetooth device in the chain transmission path.

In some embodiments, the Bluetooth device and the previous Bluetooth device both include a first Bluetooth sub-device and a second Bluetooth sub-device; each Bluetooth sub-device includes a set of Bluetooth receiving modules 61 and Bluetooth sending modules 62 .

The first Bluetooth sub-device of the Bluetooth device receives the first Bluetooth multimedia packet sent by the first Bluetooth sub-device of the previous Bluetooth device;

The second Bluetooth sub-device of the Bluetooth device receives the second Bluetooth multimedia packet sent by the second Bluetooth sub-device of the previous Bluetooth device.

In some embodiments, the Bluetooth device and the next Bluetooth device each include a first Bluetooth sub-device and a second Bluetooth sub-device;

The first Bluetooth sub-device of the Bluetooth device sends a first Bluetooth multimedia packet to the first Bluetooth sub-device of the next Bluetooth device;

The second Bluetooth sub-device of the Bluetooth device sends a second Bluetooth multimedia packet to the second Bluetooth sub-device of the next Bluetooth device.

In some embodiments, the first Bluetooth multimedia packet occupies the first sub-bandwidth of the Bluetooth transmission bandwidth when sent; the second Bluetooth multimedia packet occupies the second sub-bandwidth of the Bluetooth transmission bandwidth when sent;

The first Bluetooth multimedia packet occupies the third sub-bandwidth of the Bluetooth receiving bandwidth when received; the second Bluetooth multimedia packet occupies the fourth sub-bandwidth of the Bluetooth receiving bandwidth when received.

In some embodiments, the first sub-bandwidth is less than or equal to one-half of the Bluetooth transmission bandwidth, and the second sub-bandwidth is less than or equal to one-half of the Bluetooth transmission bandwidth;

The third sub-bandwidth is less than or equal to one-half of the Bluetooth reception bandwidth, and the fourth sub-bandwidth is less than or equal to one-half of the Bluetooth reception bandwidth.

In some embodiments, the first Bluetooth multimedia packet and the second Bluetooth multimedia packet adopt unicast communication during transmission.

In some embodiments, the first Bluetooth multimedia packet and the second Bluetooth multimedia packet support a retransmission mechanism during transmission.

In some embodiments, the transmission process of the first Bluetooth multimedia packet and the second Bluetooth multimedia packet is controlled by the main Bluetooth device.

In some embodiments, the previous Bluetooth device and/or the next Bluetooth device are configured by the master Bluetooth device; or the next Bluetooth device is selected by the Bluetooth device.

In some embodiments, the Bluetooth sending module 62 is also used to change the next Bluetooth device during the transmission process of the Bluetooth multimedia packet.

In some embodiments, the Bluetooth device further includes: a multimedia module 63 for playing the Bluetooth multimedia package.

In some embodiments, the multimedia module 63 includes a first multimedia sub-module and a second multimedia sub-module;

The first multimedia sub-module of the Bluetooth device plays the first Bluetooth multimedia packet; the second multimedia sub-module of the Bluetooth device plays the second Bluetooth multimedia packet.

In some embodiments, the first multimedia sub-module includes: a first decoding sub-module, a first DAC sub-module, a first AMP sub-module and a first playback sub-module;

The first decoding sub-module is used to decode the first Bluetooth multimedia packet into first pulse code modulation PCM data;

The first DAC sub-module is used to convert the first PCM data into a first analog signal;

The first AMP sub-module is used to amplify the first analog signal and then output it to the first playback sub-module for playback.

In some embodiments, the second multimedia sub-module includes: a second decoding sub-module, a second DAC sub-module, a second AMP sub-module and a second playback sub-module;

The second decoding sub-module is used to decode the second Bluetooth multimedia packet into second PCM data;

The second DAC submodule is used to convert the second PCM data into a second analog signal;

The second AMP sub-module is used to amplify the second analog signal and then output it to the second playback sub-module for playback.

In some embodiments, the Bluetooth multimedia package includes at least one of the following:

Bluetooth multimedia package required for playback by all Bluetooth devices;

Bluetooth multimedia packets that need to be played by the designated Bluetooth device;

The Bluetooth multimedia package needs to be played by the first multimedia sub-module;

Bluetooth multimedia packets that need to be played by the second multimedia sub-module;

Bluetooth multimedia packets that need to be played by the first multimedia sub-module in the designated Bluetooth device;

Bluetooth multimedia packets that need to be played by the second multimedia sub-module in the designated Bluetooth device;

Wherein, the specified Bluetooth device is a Bluetooth device specified by the device identification and/or type identification carried in the Bluetooth multimedia package.

Figure 13 shows a block diagram of a Bluetooth device or a first Bluetooth sub-device or a second Bluetooth sub-device provided by an exemplary embodiment of the present application. This Bluetooth device includes:

Bluetooth component 71 is used to receive the Bluetooth multimedia packet sent by the main Bluetooth device or the previous Bluetooth device; The device sends the Bluetooth multimedia packet. The Bluetooth component 71 may be a Bluetooth chip that supports both sending and receiving.

In some embodiments, the previous Bluetooth device, the Bluetooth device, and the next Bluetooth device share the Bluetooth multimedia packet from the main Bluetooth device using a chain transmission path;

The previous Bluetooth device is the Bluetooth device located before the Bluetooth device in the chain transmission path;

In some embodiments, the Bluetooth device and the previous Bluetooth device each include a first Bluetooth sub-device and a second Bluetooth sub-device; each Bluetooth sub-device includes a Bluetooth component 71 .

In some embodiments, the previous Bluetooth device and/or the next Bluetooth device are configured by the main Bluetooth device; or the next Bluetooth device is selected by the Bluetooth device.

In some embodiments, the Bluetooth component 71 is also used to change the next Bluetooth device during the transmission process of the Bluetooth multimedia packet.

In some embodiments, the Bluetooth device further includes: a multimedia component for playing the Bluetooth multimedia package. The multimedia components include: decoding component 72, DAC73, AMP74 and playback component 75. The decoding component 72 is used to decode the Bluetooth multimedia packet into PCM data; the DAC73 is used to convert the PCM data into an analog signal; the AMP74 is used to amplify the analog signal and output it to the playback component 75 for playback.

In some embodiments, the multimedia component includes a first multimedia subcomponent and a second multimedia subcomponent;

The first multimedia sub-component of the Bluetooth device plays the first Bluetooth multimedia package; the second multimedia sub-component of the Bluetooth device plays the second Bluetooth multimedia package.

In some embodiments, the first multimedia subcomponent includes: a first decoding subcomponent, a first DAC subcomponent, a first AMP subcomponent and a first playback subcomponent;

The first decoding subcomponent is used to decode the first Bluetooth multimedia packet into first pulse code modulation PCM data;

The first DAC subcomponent is used to convert the first PCM data into a first analog signal;

The first AMP sub-component is used to amplify the first analog signal and then output it to the first playback sub-component for playback.

In some embodiments, the second multimedia subcomponent includes: a second decoding subcomponent, a second DAC subcomponent, a second AMP subcomponent and a second playback subcomponent;

The second decoding subcomponent is used to decode the second Bluetooth multimedia packet into second PCM data;

The second DAC subcomponent is used to convert the second PCM data into a second analog signal;

The second AMP sub-component is used to amplify the second analog signal and then output it to the second playback sub-component for playback.

Bluetooth multimedia package required for playback by all Bluetooth devices;

The Bluetooth multimedia package needs to be played by the first Bluetooth sub-component;

A Bluetooth multimedia package that requires the second multimedia subcomponent to play;

A Bluetooth multimedia package that needs to be played by the first multimedia subcomponent in the designated Bluetooth device;

A Bluetooth multimedia package that needs to be played by the second multimedia subcomponent in the designated Bluetooth device;

The above are only optional embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection of the present application. within the range.

Claims

A Bluetooth multimedia packet transmission method, characterized in that the method is executed by a Bluetooth device, and the method includes:

Receive Bluetooth multimedia packets sent by the main Bluetooth device or the previous Bluetooth device;

Send the Bluetooth multimedia packet to the next Bluetooth device.
The method according to claim 1, characterized in that the previous Bluetooth device, the Bluetooth device, and the next Bluetooth device use a chain transmission path to share the Bluetooth multimedia packet from the main Bluetooth device;

The previous Bluetooth device is the Bluetooth device located before the Bluetooth device in the chain transmission path;

The next Bluetooth device is a Bluetooth device located after the Bluetooth device in the chain transmission path.
The method according to claim 1, wherein the Bluetooth device and the previous Bluetooth device each include a first Bluetooth component and a second Bluetooth component;

The receiving of the Bluetooth multimedia packet sent by the previous Bluetooth device includes:

The first Bluetooth component of the Bluetooth device receives the first Bluetooth multimedia packet sent by the first Bluetooth component of the previous Bluetooth device;

The second Bluetooth component of the Bluetooth device receives the second Bluetooth multimedia packet sent by the second Bluetooth component of the previous Bluetooth device.
The method according to claim 1, wherein the Bluetooth device and the next Bluetooth device each include a first Bluetooth component and a second Bluetooth component;

The sending of the Bluetooth multimedia packet to the next Bluetooth device includes:

The first Bluetooth component of the Bluetooth device sends a first Bluetooth multimedia packet to the first Bluetooth component of the next Bluetooth device;

The second Bluetooth component of the Bluetooth device sends a second Bluetooth multimedia packet to the second Bluetooth component of the next Bluetooth device.
The method according to claim 3 or 4, characterized in that,

The first Bluetooth multimedia packet occupies the first sub-bandwidth of the Bluetooth transmission bandwidth when sent; the second Bluetooth multimedia packet occupies the second sub-bandwidth of the Bluetooth transmission bandwidth when sent;

The first Bluetooth multimedia packet occupies the third sub-bandwidth of the Bluetooth receiving bandwidth when received; the second Bluetooth multimedia packet occupies the fourth sub-bandwidth of the Bluetooth receiving bandwidth when received.
The method according to claim 5, characterized in that:

The first sub-bandwidth is less than or equal to one-half of the Bluetooth transmission bandwidth, and the second sub-bandwidth is less than or equal to one-half of the Bluetooth transmission bandwidth;

The third sub-bandwidth is less than or equal to one-half of the Bluetooth reception bandwidth, and the fourth sub-bandwidth is less than or equal to one-half of the Bluetooth reception bandwidth.
The method according to claim 3 or 4, characterized in that the first Bluetooth multimedia packet and the second Bluetooth multimedia packet adopt unicast communication during transmission.
The method according to claim 3 or 4, characterized in that the first Bluetooth multimedia packet and the second Bluetooth multimedia packet support a retransmission mechanism during transmission.
The method according to claim 3 or 4, characterized in that the first Bluetooth multimedia packet and the second Bluetooth The transmission process of Bluetooth multimedia packets is controlled by the main Bluetooth device.
The method according to any one of claims 1 to 9, characterized in that,

The previous Bluetooth device and/or the next Bluetooth device are configured by the main Bluetooth device;

or,

The next Bluetooth device is selected by the Bluetooth device.
The method according to any one of claims 1 to 9, characterized in that the method further includes:

During the transmission process of the Bluetooth multimedia packet, the next Bluetooth device is changed.
The method according to any one of claims 1 to 9, characterized in that the method further includes:

Play the Bluetooth multimedia package.
The method according to claim 12, characterized in that the Bluetooth device includes a first multimedia component and a second multimedia component;

The playing of the Bluetooth multimedia package includes:

The first multimedia component of the Bluetooth device plays the first Bluetooth multimedia package; the second multimedia component of the Bluetooth device plays the second Bluetooth multimedia package.
The method according to claim 13, characterized in that the first multimedia component includes: a first decoding component, a first digital-to-analog converter DAC, a first power amplifier AMP and a first playback component;

The first multimedia component of the Bluetooth device plays the first Bluetooth multimedia package, including:

The first decoding component decodes the first Bluetooth multimedia packet into first pulse code modulation PCM data;

The first DAC converts the first PCM data into a first analog signal;

The first AMP amplifies the first analog signal and then outputs it to the first playback component for playback.
The method according to claim 13, characterized in that the second multimedia component includes: a second decoding component, a second DAC, a second AMP and a second playback component;

The second multimedia component of the Bluetooth device plays the second Bluetooth multimedia package, including:

The second decoding component decodes the second Bluetooth multimedia packet into second PCM data;

The second DAC converts the second PCM data into a second analog signal;

The second AMP amplifies the second analog signal and then outputs it to the second playback component for playback.
The method according to any one of claims 13 to 15, characterized in that the Bluetooth multimedia package includes at least one of the following:

Bluetooth multimedia package required for playback by all Bluetooth devices;

Bluetooth multimedia packets that need to be played by the specified Bluetooth device;

Bluetooth multimedia packets that need to be played by the first multimedia component;

Bluetooth multimedia packets that need to be played by the second multimedia component;

A Bluetooth multimedia package that needs to be played by the first multimedia component in the designated Bluetooth device;

A Bluetooth multimedia package that needs to be played by the second multimedia component in the designated Bluetooth device;

Wherein, the specified Bluetooth device is a Bluetooth device specified by the device identification and/or type identification carried in the Bluetooth multimedia package.
A Bluetooth device, characterized in that the Bluetooth device includes:

Bluetooth receiving module, used to receive Bluetooth multimedia packets sent by the main Bluetooth device or the previous Bluetooth device;

A Bluetooth sending module is used to send the Bluetooth multimedia packet to the next Bluetooth device.
A Bluetooth device, characterized in that the Bluetooth device is configured to perform the Bluetooth multimedia packet transmission method as described in any one of claims 1 to 16.
A Bluetooth multimedia packet transmission system, characterized in that the transmission system includes: a main Bluetooth device and at least two Bluetooth devices, and the at least two Bluetooth devices use a chain transmission path to share the Bluetooth data from the main Bluetooth device. multimedia package;

Any Bluetooth device except the last Bluetooth device among the at least two Bluetooth devices is used to receive the Bluetooth multimedia packet sent by the main Bluetooth device or the previous Bluetooth device; and send the Bluetooth multimedia packet to the next Bluetooth device. Bag;

Wherein, the previous Bluetooth device is the Bluetooth device located before the Bluetooth device on the chain transmission path among the at least two Bluetooth devices; the next Bluetooth device is the Bluetooth device among the at least two Bluetooth devices. A Bluetooth device located behind the Bluetooth device on the chain transmission path.
The transmission system according to claim 19, characterized in that the Bluetooth device is also used to play the Bluetooth multimedia package.
A Bluetooth chip, characterized in that the Bluetooth device installed with the Bluetooth chip is used to execute the Bluetooth multimedia packet transmission method as described in any one of claims 1 to 16.
A computer storage medium, characterized in that the computer storage medium stores a computer program, and the computer program is used to be executed by a Bluetooth device to implement the Bluetooth multimedia packet transmission method according to any one of claims 1 to 16.
A computer program product, characterized in that the computer program product stores a computer program, and the computer program is used to be executed by a Bluetooth device to implement the Bluetooth multimedia packet transmission method according to any one of claims 1 to 16.