CN116033404A - Multi-path Bluetooth-linked hybrid communication system and method - Google Patents
Multi-path Bluetooth-linked hybrid communication system and method Download PDFInfo
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- CN116033404A CN116033404A CN202310315539.5A CN202310315539A CN116033404A CN 116033404 A CN116033404 A CN 116033404A CN 202310315539 A CN202310315539 A CN 202310315539A CN 116033404 A CN116033404 A CN 116033404A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02D30/00—Reducing energy consumption in communication networks
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Abstract
The invention discloses a multi-path Bluetooth-linked hybrid communication system and a multi-path Bluetooth-linked hybrid communication method, and relates to the technical field of wireless communication. The system constructs a communication topological structure taking the Bluetooth adapter as a central node, and comprises a first Bluetooth link, a second Bluetooth link and a third Bluetooth link, wherein at least two paths of the three Bluetooth links adopt different Bluetooth communication protocols; the bluetooth adapter is configured to: the method comprises the steps that as slave equipment, after second audio data sent by a second equipment terminal serving as master equipment are received through a first Bluetooth link, mixing processing is carried out on the second audio data and the first audio data locally, and a wireless Bluetooth audio signal is formed; and the wireless Bluetooth audio signal is respectively sent to a right earphone and a left earphone which are slave devices through a second Bluetooth link and a third Bluetooth link as the master device. The invention is suitable for a communication system with multiple Bluetooth communication protocols and has the advantages of easy realization, stability, reliability, high processing efficiency and the like.
Description
Technical Field
The present invention relates to the field of wireless communications technologies, and in particular, to a hybrid communication system and method for multiple bluetooth links.
Background
LE Audio (also called LE Audio, or low power consumption Audio) is a new technology introduced by the bluetooth alliance from specification 5.2. LE Audio provides a brand-new Audio architecture, brings new Audio experience functions including enhancing Audio performance, increasing Audio sharing function and hearing aid support, and the like, and improves the performance of Bluetooth products with low power consumption and low delay.
Due to the introduction of the new bluetooth specification, an application scenario which is not easy to be realized under classical bluetooth (i.e. Classic BT, also called traditional bluetooth) is possible. However, since the classical bluetooth has not exited the history stage, in practical application, an application scenario where the classical bluetooth and the LE Audio bluetooth (i.e., low-power Audio bluetooth) coexist will often occur. By way of example, applications such as bluetooth low-latency gaming headphones, which are currently popular, mainly involve two types of devices: bluetooth headphones and bluetooth adapter dongles (dongles are hardware devices that can be connected to the device for purposes of accessing software applications, services and/or data, etc. to provide additional functionality to the device, some of the functions on the device can be enabled simply by connecting a Dongle to the device). The Bluetooth adapter can be plugged into a device terminal (such as a PC or a mobile phone) through an interface (such as a Universal Serial Bus (USB) port) to access the Internet, and meanwhile, a Bluetooth module on the Bluetooth adapter is connected with a Bluetooth headset to carry out Bluetooth communication with the Bluetooth headset. The Bluetooth adapter and the Bluetooth earphone support two-way communication similar to that between a mobile phone and the Bluetooth earphone (except that the Bluetooth adapter can support higher tone quality and lower delay under the new LE Audio specification). At this time, the user can communicate with the player on the network through the Bluetooth headset via the Bluetooth adapter.
Corresponding to the application scenario that a plurality of Bluetooth devices are connected and simultaneously Audio transmission is required, the mixed communication problem of multipath Bluetooth links caused by coexistence of classical Bluetooth and LE Audio Bluetooth needs to be solved. For classical bluetooth, bluetooth headsets are typically divided into a master headset (e.g., right headset) and a slave headset (e.g., left headset), the master headset communicating with a master device (e.g., a cell phone) over a first bluetooth link (bi-directional), while the master headset communicates with the slave headset over a second bluetooth link (bi-directional); the slave headphones may obtain audio data from them by listening to the link (unidirectional). For the Bluetooth adapter and the Bluetooth earphone based on LE Audio link communication, the right earphone is communicated with the Bluetooth adapter through a bidirectional LE Audio link, and the left earphone is communicated with the Bluetooth adapter through the bidirectional LE Audio link, and Audio data transmission is carried out on the uplink and the downlink of the LE Audio link. When the bluetooth headset and the bluetooth adapter are used simultaneously, the hybrid link topology provided by the prior art is shown with reference to fig. 1. In fig. 1, a pair of bluetooth headsets connects to a mobile phone and a bluetooth adapter at the same time, and when the audio data of the bluetooth adapter and the audio data of the mobile phone need to be performed simultaneously (for example, when a user plays a game through the bluetooth adapter, the user also needs to listen to music through the mobile phone or can talk when the mobile phone has a phone incoming call), 3 bluetooth networks Piconet are involved. According to the specification of the bluetooth protocol, each bluetooth network is provided with a bluetooth Clock by a Master device Master, and Slave devices Slave follow the Clock of the Master device Master, and the Master device Master roles and Slave device Slave roles under 3 bluetooth networks are identified in fig. 1: in the 1 st Bluetooth network, a mobile phone is used as a Master device, and left and right earphones are respectively used as Slave devices Slave; in the 2 nd Bluetooth network, the Bluetooth adapter is used as a Master device, and the left earphone and the right earphone are respectively used as Slave devices Slave; in the 3 rd Bluetooth network, the right earphone is used as a Master device, and the left earphone is used as a Slave device Slave.
The topology described above has the following drawbacks: on the one hand, the left earphone needs to be used as slave equipment to join 3 Bluetooth networks, and according to the specification of a Bluetooth protocol, clocks of the 3 Bluetooth networks are required to be synchronized respectively, and then the requirements of normal collecting and packaging, no disconnection and the like are met, so that the implementation difficulty is high. On the other hand, when seen from the flow direction of receiving the audio data by the earphone, the left earphone and the right earphone are required to simultaneously receive the data packet sent by the Bluetooth adapter and the mobile phone, and then the two paths of audio data are locally mixed (Mixing) through the earphone, so that the audio coding and decoding are required to consume more CPU (central processing unit) computing power, and high requirements are put forward on the processors of the left earphone and the right earphone, and the power consumption is also high. On the other hand, since two paths of audio data need to be received simultaneously, a larger Jitter Buffer (Jitter Buffer) is also required locally for the earphone, which not only increases the earphone cost, but also further increases the power consumption of the earphone.
Disclosure of Invention
The invention aims at: the utility model overcomes the defects of the prior art and provides a multi-path Bluetooth linked hybrid communication system and a method. The multi-path Bluetooth-linked hybrid communication system provided by the invention is suitable for a Bluetooth communication system with multiple Bluetooth communication protocols, such as but not limited to a Bluetooth low-delay game earphone, and has the advantages of easiness in implementation, stability, reliability, high processing efficiency and the like.
In order to achieve the above object, the present invention provides the following technical solutions:
the mixed communication system comprises a Bluetooth headset and a Bluetooth adapter, wherein the Bluetooth headset comprises a right headset and a left headset, and the Bluetooth adapter is externally connected to a first equipment terminal and is used for receiving first audio data from a network through the first equipment terminal;
the communication topology structure taking the Bluetooth adapter as a central node is constructed, the communication topology structure comprises a first Bluetooth link, a second Bluetooth link and a third Bluetooth link, the Bluetooth adapter carries out two-way communication with a second equipment terminal through the first Bluetooth link, simultaneously carries out two-way communication with a right earphone through the second Bluetooth link, and simultaneously carries out two-way communication with a left earphone through the third Bluetooth link; at least two paths of the first Bluetooth link, the second Bluetooth link and the third Bluetooth link adopt different Bluetooth communication protocols;
the bluetooth adapter is configured to: as slave equipment, receiving second audio data sent by a second equipment terminal as master equipment through the first Bluetooth link, and locally mixing the second audio data with the first audio data to form a wireless Bluetooth audio signal; and the wireless Bluetooth audio signal is respectively sent to a right earphone and a left earphone which are slave devices through the second Bluetooth link and the third Bluetooth link as master devices.
Further, the first bluetooth link is a classical bluetooth link adopting a classical bluetooth communication protocol; the second Bluetooth link and the third Bluetooth link are LE Audio links adopting LE Audio Bluetooth communication protocol.
Further, the bluetooth adapter is configured to: after the Bluetooth transceiver is connected with the Bluetooth headset, a request is initiated to the Bluetooth headset to acquire communication link configuration information of the second equipment terminal; the method comprises the steps of,
and establishing a first Bluetooth link with the second equipment terminal according to the acquired communication link configuration information of the second equipment terminal.
Further, the communication link configuration information includes clock information of the second device terminal, a bluetooth address, a key of a communication link between the bluetooth headset and the second device terminal, and bluetooth protocol configuration information of each layer of connection between the bluetooth headset and the second device terminal.
Further, before connection between the Bluetooth adapter and the Bluetooth headset is established, the connection relation between the Bluetooth headset and the second equipment terminal is obtained, and whether the connection between the Bluetooth headset and the second equipment terminal is successful or not is judged;
when the Bluetooth headset is judged to be successfully connected with the second equipment terminal, the communication topological structure is constructed through the following steps:
the method comprises the steps that information of a master earphone and a slave earphone in a Bluetooth earphone is obtained, the master earphone is connected with a second equipment terminal through a Bluetooth link, the slave earphone is connected with the second equipment terminal through a monitoring link, the master earphone and the slave earphone are communicated through an inter-earphone control link, the master earphone is visible to the Bluetooth adapter, and the slave earphone is invisible to the Bluetooth adapter;
when the Bluetooth adapter is connected with the master earphone, triggering the master earphone to send a message to the slave earphone to inform the slave earphone of the connection information of the Bluetooth adapter, and simultaneously triggering the master earphone to send the communication link configuration information of the second equipment terminal to the Bluetooth adapter;
the slave earphone starts the visibility of the Bluetooth adapter according to the received connection information of the Bluetooth adapter;
establishing a third Bluetooth link of the Bluetooth adapter and the slave earphone, and simultaneously disconnecting a communication link between the master earphone and the slave earphone;
according to the communication link configuration information of the second equipment terminal, the Bluetooth adapter disguises to be a master earphone for communicating with the second equipment terminal, and meanwhile, the master earphone releases Bluetooth connection with the second equipment terminal based on local; when the Bluetooth adapter is connected with the second equipment terminal, a first Bluetooth link between the Bluetooth adapter and the second equipment terminal is established, and meanwhile, a message of successful connection is sent to the main earphone; after receiving the message, the main earphone disconnects the Bluetooth connection with the second equipment terminal;
the Bluetooth adapter notifies the slave earphone to stop monitoring the second device terminal, and disconnects the monitoring link with the second device terminal from the slave earphone.
Further, the first equipment terminal is computer equipment with a networking function, and an interface for the Bluetooth adapter to be inserted is arranged on the first equipment terminal; the second equipment terminal is a mobile phone.
Further, the Bluetooth adapter is plugged into a first equipment terminal through a USB interface, and the wired audio data are acquired through the first equipment terminal.
Further, a mixer is arranged in the Bluetooth adapter, and the mixer comprises a signal mixing module and an audio encoding and decoding module;
the signal mixing module is used for mixing the wired audio data and Bluetooth wireless audio data from the second equipment terminal to obtain a mixed signal;
the audio coder-decoder is used for coding and decoding the mixed signal, converting the mixed signal into a wireless Bluetooth audio signal and transmitting the wireless Bluetooth audio signal to the Bluetooth headset through the Bluetooth transceiver.
The invention also provides a Bluetooth communication method using the mixed communication system, which comprises the following steps:
receiving, by the bluetooth adapter, first audio data from the network through the first device terminal; the Bluetooth adapter acquires second audio data sent by the second equipment terminal through a first Bluetooth link;
mixing the second audio data with the first audio data locally to form a wireless Bluetooth audio signal;
and respectively transmitting the wireless Bluetooth audio signals to a right earphone and a left earphone serving as slave devices through a second Bluetooth link and a third Bluetooth link.
Further, the first bluetooth link is a classical bluetooth link adopting a classical bluetooth communication protocol; the second Bluetooth link and the third Bluetooth link are LE Audio links adopting LE Audio Bluetooth communication protocol.
Compared with the prior art, the invention has the following advantages and positive effects by taking the technical scheme as an example: the multi-path Bluetooth-linked hybrid communication system provided by the invention is suitable for a Bluetooth communication system in which a plurality of Bluetooth communication protocols (such as classical Bluetooth and LE Audio Bluetooth) coexist, for example, but not limited to a Bluetooth low-delay game earphone, and has the advantages of easiness in implementation, stability, reliability, high processing efficiency and the like.
Under the communication topology structure provided by the invention, the audio data of the second equipment terminal, such as a mobile phone, is firstly sent to the Bluetooth adapter, and then the Bluetooth adapter mixes (Mixing) the audio data of the mobile phone and the audio data received from the network on the Bluetooth adapter. On the one hand, the Bluetooth adapter can be externally connected to a first equipment terminal such as a computer PC through a USB interface, and is powered through the PC, so that the Bluetooth adapter is insensitive to power consumption, and further, the Bluetooth adapter can start calculation as much as possible to perform multi-channel audio mixing operation and the like. On the other hand, compared with the prior art, the left earphone and the right earphone only perform Slave device Slave roles in the Bluetooth network of the Bluetooth adapter, the bottom scheduling of the Controller (Controller) is easy to realize, and the communication link is more stable and reliable.
Drawings
Fig. 1 is a schematic diagram of a combined topology of classical bluetooth and LE Audio bluetooth coexistence provided in the prior art.
Fig. 2 is a schematic diagram of a combined topology structure of classical bluetooth and LE Audio bluetooth.
Fig. 3 is a diagram illustrating an example of information processing of a bluetooth adapter in a topology structure according to the present invention.
Fig. 4 is a schematic diagram of a topology structure of a connection between a bluetooth adapter and a right earphone according to the present invention.
Fig. 5 is a schematic structural diagram of a connection established between the bluetooth adapter and the left earpiece based on the connection of fig. 4.
Fig. 6 is a schematic diagram of a connection established between the bluetooth adapter and the mobile phone based on the connection of fig. 5.
Fig. 7 is a schematic diagram of a structure in which the left earphone is disconnected from the mobile phone based on the connection of fig. 6.
Description of the embodiments
The multi-way bluetooth linked hybrid communication system and method of the present disclosure is described in further detail below with reference to the accompanying drawings and detailed description. It is noted that techniques (including methods and apparatus) known to those of ordinary skill in the relevant art may not be discussed in detail, but are considered to be part of the specification where appropriate. Meanwhile, other examples of the exemplary embodiment may have different values. The structures, proportions, sizes, etc. shown in the drawings are shown only in connection with the present disclosure for purposes of understanding and reading by those skilled in the art and are not intended to limit the scope of the invention. In the description of the embodiment of the present application, "/" means "and/or" is used to describe the association relationship of the association object, which means that three relationships may exist, for example, "a and/or b" means: there are three cases of A and B separately. In the description of the embodiments of the present application, "plurality" means two or more.
Examples
The present embodiment provides a communication topology of a multi-path bluetooth-linked hybrid communication system.
The hybrid communication system includes a bluetooth headset and a bluetooth adapter (i.e., dongle) having a bluetooth transceiver.
The bluetooth headset may include a right headset and a left headset.
The Bluetooth adapter is externally connected to the first equipment terminal and is used for receiving first audio data from a network through the first equipment terminal. Specifically, the bluetooth adapter can be plugged into an intelligent terminal such as a PC/mobile phone through a USB interface to access the Internet, and the interface can support audio data transmission; simultaneously, bluetooth transceiver on the bluetooth adapter is connected bluetooth headset, carries out bluetooth communication with bluetooth headset. The Bluetooth adapter and the Bluetooth earphone support two-way LE Audio communication similar to that between a mobile phone and the Bluetooth earphone, and can support higher tone quality and lower time delay. In this way, the user can communicate with the player on the network through the Bluetooth headset and the Bluetooth adapter.
In this embodiment, a new communication topology is constructed with the bluetooth adapter as a central node. Referring to fig. 2, the new topology structure includes a first bluetooth link, a second bluetooth link and a third bluetooth link, where the bluetooth adapter performs bidirectional communication with the second device terminal through the first bluetooth link, the bluetooth adapter performs bidirectional communication with the right earphone through the second bluetooth link, and the bluetooth adapter performs bidirectional communication with the left earphone through the third bluetooth link; at least two paths of the first Bluetooth link, the second Bluetooth link and the third Bluetooth link adopt different Bluetooth communication protocols. Specifically, the first bluetooth link is a classical bluetooth link adopting a classical bluetooth communication protocol, and the second bluetooth link and the third bluetooth link are LE Audio links adopting an LE Audio bluetooth communication protocol. That is, the bluetooth adapter performs bluetooth communication with the second device terminal through a bidirectional classical bluetooth link, and can perform audio data transmission; meanwhile, the Bluetooth adapter performs Bluetooth communication with the right earphone through a bidirectional LE Audio link, so that Audio data transmission can be performed; meanwhile, the Bluetooth adapter performs Bluetooth communication with the left earphone through a bidirectional LE Audio link, and can perform Audio data transmission.
The bluetooth adapter is configured to: as a slave device, receiving second audio data sent by a second device terminal as a master device through the first bluetooth link, and locally mixing the second audio data with the first audio data to form a wireless bluetooth audio signal, as shown in fig. 3; and the wireless Bluetooth audio signal is respectively sent to a right earphone serving as a slave device and a left earphone serving as the slave device through the second Bluetooth link and the third Bluetooth link as a master device.
The first equipment terminal is computer equipment with a networking function, an interface for the Bluetooth adapter to be inserted is arranged on the first equipment terminal, and the computer equipment can be a computer PC, a mobile phone, a tablet personal computer and the like; the second equipment terminal is preferably a mobile phone.
The Bluetooth adapter is internally provided with a mixer, and the mixer specifically can comprise a signal mixing module and an audio encoding and decoding module. The signal mixing module is used for mixing the wired audio data and Bluetooth wireless audio data from the second equipment terminal to obtain a mixed signal. The audio coder-decoder is used for coding and decoding the mixed signal, converting the mixed signal into a wireless Bluetooth audio signal and transmitting the wireless Bluetooth audio signal to the Bluetooth headset through the Bluetooth transceiver.
Compared with the existing communication topology structure of fig. 1, the topology structure of the present embodiment removes the communication link between the left and right headsets and the bluetooth link between the mobile phone (second device terminal) and the bluetooth headset, and transfers the communication link to the bluetooth link of the mobile phone and the bluetooth adapter. Thus, the audio data of the mobile phone is firstly sent to the Bluetooth adapter, and then the Bluetooth adapter mixes the audio data of the mobile phone and the audio data received from the network on the Bluetooth adapter. On the one hand, the Bluetooth adapter can be externally connected to a first equipment terminal such as a computer PC through a USB interface, and is powered by the PC, so that the Bluetooth adapter is insensitive to power consumption, and further, the Bluetooth adapter can carry out multi-path audio mixing operation and the like on calculation power as much as possible. On the other hand, compared with the prior art, the left earphone and the right earphone only take Slave device Slave roles in the Bluetooth network Piconet of the Bluetooth adapter, the bottom scheduling of the controller is easy to realize, and the communication link is more stable and reliable.
In constructing a communication topology with a bluetooth adapter as a central node, the bluetooth adapter may be configured to: after being connected with a Bluetooth headset through a Bluetooth transceiver, the Bluetooth headset initiates a request to acquire communication link configuration information of the mobile phone; and establishing a first Bluetooth link with the mobile phone according to the acquired communication link configuration information of the mobile phone.
In this embodiment, the communication link configuration information may specifically include clock information of the mobile phone, bluetooth address, a key of a communication link between the bluetooth headset and the mobile phone, and bluetooth protocol configuration information of each layer of connection between the bluetooth headset and the mobile phone. Thus, the Bluetooth adapter can be disguised as a Bluetooth headset to communicate with the mobile phone.
Preferably, before the connection between the Bluetooth adapter and the Bluetooth headset is established, the connection relation between the Bluetooth headset and the mobile phone can be acquired first, and whether the connection between the Bluetooth headset and the mobile phone is successful or not is judged; when the Bluetooth headset and the mobile phone are judged to be successfully connected, the communication topological structure is constructed through the following steps.
First, master earphone and slave earphone information in the bluetooth earphone are acquired, and as shown in fig. 4, a case in which the right earphone is the master earphone and the left earphone is the slave earphone is exemplified. At this time, the right earphone serving as the master earphone is connected with the mobile phone through a classical Bluetooth link, the left earphone serving as the slave earphone is connected with the mobile phone through a monitoring link, and meanwhile, the right earphone and the left earphone are communicated through an inter-earphone control link. The master earphone is visible to the bluetooth adapter (i.e., dongle) and the slave earphone is not visible to the bluetooth adapter.
The bluetooth adapter is then connected to the right earphone, which is visible to it, with continued reference to fig. 4. When the Bluetooth adapter is connected with the right earphone, a bidirectional LE Audio link between the Bluetooth adapter and the right earphone is established; meanwhile, when the Bluetooth adapter is connected with the right earphone, the right earphone can also send a message to the left earphone to inform the left earphone of the connection information of the Bluetooth adapter, and meanwhile, the right earphone sends the communication link configuration information of the mobile phone to the Bluetooth adapter.
Then, the left earphone can start the visibility of the Bluetooth adapter according to the received connection information of the Bluetooth adapter to wait for the Bluetooth adapter to be accessed. Referring to fig. 5, when the bluetooth adapter is connected to the left earphone, the bluetooth adapter establishes a bidirectional LE Audio link with the left earphone, and the left earphone disconnects the bidirectional link with the right earphone.
Thereafter, referring to fig. 6, the bluetooth adapter receives the communication link configuration information of the mobile phone, and the bluetooth adapter masquerades as a right earphone to communicate with the mobile phone, and simultaneously the right earphone releases the bluetooth connection with the mobile phone based on the local, and the operation of releasing the bluetooth connection is that the right earphone acts locally, without initiating a command in the bluetooth protocol. This operation is different from the operation of disconnecting the bluetooth connection, which is a command in the bluetooth protocol to be initiated, and disconnection causes the handset to clear the right headset of information, resulting in a masquerading failure of the bluetooth adapter.
After the Bluetooth adapter is connected with the mobile phone, a classical Bluetooth communication link between the Bluetooth adapter and the mobile phone is established, and meanwhile, a message of successful connection is sent to the right earphone; and after receiving the message of successful connection, the right earphone disconnects the Bluetooth connection with the mobile phone.
Finally, the left earphone stops monitoring the mobile phone, the left earphone breaks the monitoring link with the mobile phone, as shown in fig. 7, and at this time, the audio data of the mobile phone are uniformly forwarded to the left earphone and the right earphone by the Bluetooth adapter.
The scheme belongs to the situation that the Bluetooth adapter is connected with the Bluetooth headset after the mobile phone is successfully connected with the Bluetooth headset. In another case, the bluetooth adapter is connected to the headset, and then the mobile phone is connected to the headset. At this time, the bluetooth adapter has established two-way LE Audio links with the right earphone and the left earphone, and the right earphone can send the communication link configuration information of the mobile phone to the bluetooth adapter, and the bluetooth adapter receives the communication link configuration information of the mobile phone, and the bluetooth adapter begins to disguise as the right earphone to communicate with the mobile phone entering afterwards. When the Bluetooth adapter is connected with the mobile phone, a classical Bluetooth link between the Bluetooth adapter and the mobile phone is established, and the topological structure shown in fig. 7 is formed.
In another embodiment of the present invention, there is also provided a bluetooth communication method using the aforementioned hybrid communication system, the method including the following steps.
S100, receiving first audio data from a network by a Bluetooth adapter through a first equipment terminal; and the Bluetooth adapter acquires second audio data sent by the second equipment terminal through the first Bluetooth link.
S200, mixing the second audio data with the first audio data locally to form a wireless Bluetooth audio signal.
And S300, the wireless Bluetooth audio signals are respectively sent to a right earphone and a left earphone which are slave devices through a second Bluetooth link and a third Bluetooth link.
In this embodiment, the first bluetooth link is a classical bluetooth link adopting a classical bluetooth communication protocol; the second Bluetooth link and the third Bluetooth link are LE Audio links adopting LE Audio Bluetooth communication protocol.
Other technical features are described in the previous embodiments and are not described in detail here.
In the above description, the disclosure of the present invention is not intended to limit itself to these aspects. Rather, the components may be selectively and operatively combined in any number within the scope of the present disclosure. In addition, terms like "comprising," "including," and "having" should be construed by default as inclusive or open-ended, rather than exclusive or closed-ended, unless expressly defined to the contrary. All technical, scientific, or other terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Common terms found in dictionaries should not be too idealized or too unrealistically interpreted in the context of the relevant technical document unless the present disclosure explicitly defines them as such. Any alterations and modifications of the present invention, which are made by those of ordinary skill in the art based on the above disclosure, are intended to be within the scope of the appended claims.
Claims (10)
1. The utility model provides a mixed communication system that multichannel bluetooth links, includes bluetooth headset and bluetooth adapter, bluetooth headset includes right earphone and left earphone, bluetooth adapter is external on first equipment terminal for through first equipment terminal receives the first audio data from the network, its characterized in that:
the communication topology structure taking the Bluetooth adapter as a central node is constructed, the communication topology structure comprises a first Bluetooth link, a second Bluetooth link and a third Bluetooth link, the Bluetooth adapter carries out two-way communication with a second equipment terminal through the first Bluetooth link, simultaneously carries out two-way communication with a right earphone through the second Bluetooth link, and simultaneously carries out two-way communication with a left earphone through the third Bluetooth link; at least two paths of the first Bluetooth link, the second Bluetooth link and the third Bluetooth link adopt different Bluetooth communication protocols;
the bluetooth adapter is configured to: as slave equipment, receiving second audio data sent by a second equipment terminal as master equipment through the first Bluetooth link, and locally mixing the second audio data with the first audio data to form a wireless Bluetooth audio signal; and the wireless Bluetooth audio signal is respectively sent to a right earphone and a left earphone which are slave devices through the second Bluetooth link and the third Bluetooth link as master devices.
2. The system according to claim 1, wherein: the first Bluetooth link is a classical Bluetooth link adopting a classical Bluetooth communication protocol; the second Bluetooth link and the third Bluetooth link are LE Audio links adopting LE Audio Bluetooth communication protocol.
3. The system of claim 1, wherein the bluetooth adapter is configured to: after the Bluetooth transceiver is connected with the Bluetooth headset, a request is initiated to the Bluetooth headset to acquire communication link configuration information of the second equipment terminal; the method comprises the steps of,
and establishing a first Bluetooth link with the second equipment terminal according to the acquired communication link configuration information of the second equipment terminal.
4. A system according to claim 3, characterized in that: the communication link configuration information comprises clock information of the second equipment terminal, bluetooth address, secret keys of communication links of the Bluetooth headset and the second equipment terminal, and Bluetooth protocol configuration information of each layer of connection between the Bluetooth headset and the second equipment terminal.
5. A system according to claim 3, characterized in that: before connection between the Bluetooth adapter and the Bluetooth headset is established, acquiring the connection relation between the Bluetooth headset and the second equipment terminal, and judging whether the connection between the Bluetooth headset and the second equipment terminal is successful;
when the Bluetooth headset is judged to be successfully connected with the second equipment terminal, the communication topological structure is constructed through the following steps:
the method comprises the steps that information of a master earphone and a slave earphone in a Bluetooth earphone is obtained, the master earphone is connected with a second equipment terminal through a Bluetooth link, the slave earphone is connected with the second equipment terminal through a monitoring link, the master earphone and the slave earphone are communicated through an inter-earphone control link, the master earphone is visible to the Bluetooth adapter, and the slave earphone is invisible to the Bluetooth adapter;
when the Bluetooth adapter is connected with the master earphone, triggering the master earphone to send a message to the slave earphone to inform the slave earphone of the connection information of the Bluetooth adapter, and simultaneously triggering the master earphone to send the communication link configuration information of the second equipment terminal to the Bluetooth adapter;
the slave earphone starts the visibility of the Bluetooth adapter according to the received connection information of the Bluetooth adapter;
establishing a third Bluetooth link of the Bluetooth adapter and the slave earphone, and simultaneously disconnecting a communication link between the master earphone and the slave earphone;
according to the communication link configuration information of the second equipment terminal, the Bluetooth adapter disguises to be a master earphone for communicating with the second equipment terminal, and meanwhile, the master earphone releases Bluetooth connection with the second equipment terminal based on local; when the Bluetooth adapter is connected with the second equipment terminal, a first Bluetooth link between the Bluetooth adapter and the second equipment terminal is established, and meanwhile, a message of successful connection is sent to the main earphone; after receiving the message, the main earphone disconnects the Bluetooth connection with the second equipment terminal;
the Bluetooth adapter notifies the slave earphone to stop monitoring the second device terminal, and disconnects the monitoring link with the second device terminal from the slave earphone.
6. The system according to claim 1, wherein: the first equipment terminal is computer equipment with a networking function, and is provided with an interface for the Bluetooth adapter to be inserted; the second equipment terminal is a mobile phone.
7. The system according to any one of claims 1-6, wherein: the Bluetooth adapter is inserted into a first equipment terminal through a USB interface, and the first equipment terminal acquires wired audio data.
8. The system according to claim 7, wherein: the Bluetooth adapter is internally provided with a mixer, and the mixer comprises a signal mixing module and an audio encoding and decoding module;
the signal mixing module is used for mixing the wired audio data and Bluetooth wireless audio data from the second equipment terminal to obtain a mixed signal;
the audio coder-decoder is used for coding and decoding the mixed signal, converting the mixed signal into a wireless Bluetooth audio signal and transmitting the wireless Bluetooth audio signal to the Bluetooth headset through the Bluetooth transceiver.
9. A bluetooth communication method using the system of claim 1, comprising the steps of:
receiving, by the bluetooth adapter, first audio data from the network through the first device terminal; the Bluetooth adapter acquires second audio data sent by the second equipment terminal through a first Bluetooth link;
mixing the second audio data with the first audio data locally to form a wireless Bluetooth audio signal;
and respectively transmitting the wireless Bluetooth audio signals to a right earphone and a left earphone serving as slave devices through a second Bluetooth link and a third Bluetooth link.
10. The method according to claim 9, wherein: the first Bluetooth link is a classical Bluetooth link adopting a classical Bluetooth communication protocol; the second Bluetooth link and the third Bluetooth link are LE Audio links adopting LE Audio Bluetooth communication protocol.
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| CN116033404B (en) | 2023-06-20 |
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