WO2023134386A1 - Procédé et appareil de connexion de dispositif, et dispositif, support de stockage et puce - Google Patents

Procédé et appareil de connexion de dispositif, et dispositif, support de stockage et puce Download PDF

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Publication number
WO2023134386A1
WO2023134386A1 PCT/CN2022/139336 CN2022139336W WO2023134386A1 WO 2023134386 A1 WO2023134386 A1 WO 2023134386A1 CN 2022139336 W CN2022139336 W CN 2022139336W WO 2023134386 A1 WO2023134386 A1 WO 2023134386A1
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Prior art keywords
bluetooth
connection
identification information
target device
low energy
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PCT/CN2022/139336
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English (en)
Chinese (zh)
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田原
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Oppo广东移动通信有限公司
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Publication of WO2023134386A1 publication Critical patent/WO2023134386A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/11—Allocation or use of connection identifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/40—Connection management for selective distribution or broadcast
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present application belongs to the technical field of wireless communication, and in particular relates to a device connection method, device, device storage medium and chip.
  • LE Audio Low Energy Bluetooth Audio
  • Embodiments of the present application provide a device connection method, device, device storage medium, and chip, which can reduce the incidence of Bluetooth audio devices being mistakenly connected to terminal devices.
  • the embodiment of the present application provides a device connection method, which is applied to a Bluetooth audio device, and the method includes:
  • the embodiment of the present application provides a device connection method, which is applied to a terminal device, and the method includes:
  • the Bluetooth low-power broadcast message carries the identification information of the target device
  • the Bluetooth low energy connection request When the identification information of the terminal device matches the identification information of the target device carried in the Bluetooth low energy broadcast message, send a Bluetooth low energy connection request to the Bluetooth audio device, and the Bluetooth low energy connection request It is used to request to establish a Bluetooth low energy audio connection with the Bluetooth audio device.
  • the embodiment of the present application provides a device connection device, which is applied to a Bluetooth audio device, and the device includes:
  • An acquisition module configured to acquire the identification information of the first target device
  • a first sending module configured to send a Bluetooth low energy broadcast message carrying the identification information, where the Bluetooth low energy broadcast message is used to instruct the first target device to initiate Bluetooth low energy audio to the Bluetooth audio device connect;
  • the first receiving module is configured to receive the Bluetooth low energy connection request sent by the first target device
  • a connection module configured to establish a Bluetooth low energy audio connection with the first target device in response to the Bluetooth low energy connection request.
  • an embodiment of the present application provides a Bluetooth audio device, including a memory, a processor, a transceiver, and a computer program stored in the memory and operable on the processor, and the processor executes the The computer program realizes the steps of the above-mentioned device connection method applied to the Bluetooth audio device.
  • the embodiment of the present application provides a device connection device, which is applied to a terminal device, and the device includes:
  • the second receiving module is configured to receive a Bluetooth low power broadcast message sent by a Bluetooth audio device; the Bluetooth low power broadcast message carries identification information of a target device;
  • the second sending module is configured to send a Bluetooth low energy connection request to the Bluetooth audio device when the identification information of the terminal device matches the identification information of the target device carried in the Bluetooth low energy broadcast message, and
  • the Bluetooth low energy connection request is used to request to establish a Bluetooth low energy audio connection with the Bluetooth audio device.
  • an embodiment of the present application provides a terminal device, including a memory, a processor, a transceiver, and a computer program stored in the memory and operable on the processor, and the processor executes the The computer program is to realize the steps of the above-mentioned device connection method applied to the terminal device.
  • the embodiment of the present application provides a computer-readable storage medium, the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the above-mentioned device connection method applied to a Bluetooth audio device is implemented steps, or when the computer program is executed by a processor, implements the steps of the above-mentioned device connection method applied to a terminal device.
  • the embodiment of the present application provides a chip, including a processor, the processor is used to read and execute the computer program stored in the memory, so as to perform the steps of the above-mentioned device connection method applied to the Bluetooth audio device, or Execute the steps of the above-mentioned device connection method applied to the terminal device.
  • the embodiment of the present application provides a computer program product.
  • the terminal device is made to execute the steps of the above-mentioned device connection method applied to a Bluetooth audio device, or the terminal device is made to execute the above-mentioned steps. Steps of a device connection method applied to a terminal device.
  • Fig. 1 is a basic frame diagram of the bluetooth protocol in the related art
  • Fig. 2 is a schematic diagram of the network environment where the TWS earphone is located in the related art
  • FIG. 3 is a flow chart of a device connection method applied to a Bluetooth audio device provided in Embodiment 1 of the present application;
  • FIG. 4 is a flowchart of a device connection method applied to a Bluetooth audio device provided in Embodiment 2 of the present application;
  • Fig. 5 is a schematic diagram of the desktop of the mobile phone in Embodiment 2 of the present application.
  • FIG. 6 is a schematic diagram of a mobile phone setting interface in Embodiment 2 of the present application.
  • FIG. 7 is a schematic diagram of the mobile phone Bluetooth operation interface in Embodiment 2 of the present application.
  • FIG. 8 is a flow chart of interaction between a Bluetooth audio device and a first target device in Embodiment 2 of the present application;
  • FIG. 9 is a flow chart of interaction between a Bluetooth audio device and a second target device in Embodiment 2 of the present application.
  • FIG. 10 is a flowchart of a device connection method applied to a Bluetooth audio device provided in Embodiment 3 of the present application;
  • FIG. 11 is a flow chart of interaction between a Bluetooth audio device and a first target device in Embodiment 3 of the present application;
  • FIG. 12 is a flow chart of interaction between a Bluetooth audio device and a second target device in Embodiment 3 of the present application;
  • FIG. 13 is a flowchart of a device connection method applied to a Bluetooth audio device provided in Embodiment 4 of the present application;
  • FIG. 14 is a flowchart of a device connection method applied to a terminal device provided in Embodiment 5 of the present application;
  • FIG. 15 is a schematic diagram of the interaction between the TWS headset and the terminal device in Example 1 of the present application.
  • Fig. 16 is a schematic diagram of the interaction between the TWS headset and the terminal device in Example 2 of the present application;
  • FIG. 17 is a schematic diagram of the interaction between the TWS headset and the terminal device in Example 3 of the present application.
  • Fig. 18 is a schematic structural view of the equipment connection device in Example 6 of the present application.
  • Fig. 19 is a schematic structural diagram of a Bluetooth audio device in Example 7 of the present application.
  • Fig. 20 is a schematic structural view of the equipment connection device in Example 8 of the present application.
  • FIG. 21 is a schematic structural diagram of a terminal device in Example 9 of the present application.
  • the term “if” may be construed, depending on the context, as “when” or “once” or “in response to determining” or “in response to detecting “.
  • the phrase “if determined” or “if [the described condition or event] is detected” may be construed, depending on the context, to mean “once determined” or “in response to the determination” or “once detected [the described condition or event] ]” or “in response to detection of [described condition or event]”.
  • references to "one embodiment” or “some embodiments” or the like in the specification of the present application means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present application.
  • appearances of the phrases “in one embodiment,” “in some embodiments,” “in other embodiments,” “in other embodiments,” etc. in various places in this specification are not necessarily All refer to the same embodiment, but mean “one or more but not all embodiments” unless specifically stated otherwise.
  • the terms “including”, “comprising”, “having” and variations thereof mean “including but not limited to”, unless specifically stated otherwise.
  • Bluetooth The evolution of Bluetooth technology generally has two branches, namely, classic Bluetooth and low-power Bluetooth.
  • Bluetooth 1.1, 1.2, 2.0, 2.1, and 3.0 versions are usually called classic Bluetooth
  • versions after Bluetooth 4.0 are usually called low-power Bluetooth consumption.
  • Classic bluetooth is suitable for the application of actual data transmission, including the transmission of large amount of data, mainly used in the transmission of audio, files and other scenarios, with high power consumption
  • low power consumption bluetooth is suitable for real-time requirements but high data rate
  • Relatively low-cost products are mainly used in scenarios such as matching, data synchronization, and positioning of smart wearable devices, sensing devices, mice, keyboards, etc., with extremely low power consumption and latency.
  • the application layer includes various applications (profiles) defined by the Bluetooth Special Interest Group (SIG), and each profile defines its corresponding message format and application rules. Specifications have been formulated for all kinds of possible and general-purpose application scenarios, such as Bluetooth Audio Transmission Model Protocol (Advanced Audio Distribution Profile, A2DP), HFP (hands-free profile), HDP (Health Device Profile) and so on.
  • the host layer can be understood as the protocol of the service layer, which defines the core protocol (protocol) in the Bluetooth framework.
  • the core protocol includes but is not limited to the basic Bluetooth service protocol (Service Discover Protocol, SDP), logical link control and adaptation protocol ( Logical link control and adaptation protocol, L2TCAP), etc.
  • the control layer defines the underlying hardware, including: Host Controller Interface (HCI), radio frequency, baseband and link management (LM), etc.
  • HCI Host Controller Interface
  • LM baseband and link management
  • the RF layer uses microwaves in the 2.4GHz unlicensed ISM band to implement
  • the filtering and transmission of data streams mainly define the conditions that the Bluetooth transceiver needs to meet to work normally in this frequency band.
  • the baseband provides two different physical links, that is, a synchronous connection-oriented (Synchronous Connection Oriented, SCO) type Bluetooth link, and an asynchronous connectionless (Asynchronous Connection Less, ACL) type Bluetooth link, which is responsible for frequency hopping and Bluetooth Transmission of data and information frames, and provides different levels of forward error correction code (Frequency Error Correction, FEC) or cyclic redundancy check (Cyclic Redundancy Check, CTC) for all types of data packets.
  • FEC forward error correction code
  • CTC Cyclic Redundancy Check
  • Bluetooth audio transmission still uses the Bluetooth audio transmission model protocol (Advanced Audio Distribution Profile, A2DP) used by classic Bluetooth. Therefore, in fact, listening to songs and Listening to songs with Bluetooth 2.1 version relies on the same basic technology, using the A2DP protocol that still belongs to the classic Bluetooth to listen to songs.
  • A2DP Advanced Audio Distribution Profile
  • SIG announced the new Bluetooth core specification CoreSpec5.2, including the release of low-power Bluetooth audio LE Audio.
  • LE Audio not only supports stereo in connection state and broadcast state, but also enhances Bluetooth audio performance through a series of specification adjustments, including reducing delay and enhancing sound quality through Low Complexity Communications Codec (LC3) codec wait.
  • LC3 Low Complexity Communications Codec
  • the LC3 introduced by LE Audio has better compression rate and sound quality than the sub-band coding (SBC) that is mandatory in the A2DP protocol, and can also achieve sound quality enhancement at low data rates.
  • SBC sub-band coding
  • Bluetooth audio devices Since LE Audio has just been released, some terminal devices do not yet support LE Audio.
  • current Bluetooth audio devices (such as TWS headsets) mostly use dual-mode Bluetooth technology, that is, they support classic Bluetooth at the same time. connection and LE Audio connection.
  • Bluetooth audio devices cannot actively initiate low-power Bluetooth connection requests, and must be initiated by the terminal device. Therefore, in order to support LE Audio technology, Bluetooth audio devices are required to establish When LE Audio is connected, it sends a low-power Bluetooth broadcast message by broadcast (the traditional low-power Bluetooth broadcast message does not carry the identification information of the terminal device).
  • the terminal device After receiving the low-power Bluetooth broadcast message, the terminal device automatically or manually Send a Bluetooth low energy connection request to the Bluetooth audio device, and the Bluetooth audio device establishes a LE Audio connection with the terminal device in response to the Bluetooth low energy connection request.
  • Bluetooth audio devices have a maximum connectable number according to their respective performance configurations. For Bluetooth audio devices that support one-to-one dragging, the maximum connectable number is 1, that is, only one terminal device is allowed to maintain LE Audio connection at the same time.
  • the Bluetooth audio device When the Bluetooth audio device has been When establishing a LE Audio connection with a terminal device, it is necessary to disconnect the LE Audio connection between the Bluetooth audio device and the terminal device before establishing a LE Audio connection between the Bluetooth audio device and the new terminal device; For multiple Bluetooth audio devices, the maximum connectable number is greater than 1, that is, it is allowed to maintain LE Audio connections with multiple terminal devices at the same time.
  • the Bluetooth audio device When the number of terminal devices that have established LE Audio connections with the Bluetooth audio device does not reach the maximum connectable number , allowing the Bluetooth audio device to establish a LE Audio connection with a new terminal device, but if the number of terminal devices that have established LE Audio connections with the Bluetooth audio device reaches the maximum number of connections, then it is also necessary to disconnect the Bluetooth audio device from the connection LE Audio connection of some terminal devices, and then the Bluetooth audio device can establish a LE Audio connection with a new terminal device.
  • the Bluetooth audio device is a TWS headset
  • the terminal device is a mobile phone
  • the mobile phone is configured with a whitelist for LE Audio.
  • the TWS headset establishes a LE Audio connection with the mobile phone
  • the mobile phone records the TWS headset into the whitelist
  • active disconnection means that when the mobile phone keeps Bluetooth on, the mobile phone disconnects the LE Audio connection with the TWS headset in response to a specific input command
  • the mobile phone Delete the record of the TWS headset from the white list.
  • the mobile phone In the state where the mobile phone has not established a LE Audio connection with the TWS headset, when the mobile phone receives a low-power Bluetooth broadcast message from the TWS headset, if the white list has a record of the TWS headset, the mobile phone will automatically report to the TWS headset. The headset sends a low-power Bluetooth connection request to trigger the TWS headset to establish LE Audio with the mobile phone. If there is no record of the TWS headset in the whitelist, the mobile phone will not automatically send a low-power Bluetooth connection request to the TWS headset. After receiving the relevant input instructions, a low-power Bluetooth connection request (that is, manual trigger) will be sent to the TWS headset.
  • a low-power Bluetooth connection request that is, manual trigger
  • TWS headset Assume that the TWS headset, mobile phone A and mobile phone B in the network environment shown in Figure 2 all support LE Audio connection, and the TWS headset supports one-to-one connection.
  • this application proposes a device connection method, device, device storage medium and chip, which can reduce the incidence of Bluetooth audio devices being mistakenly connected to terminal devices to a certain extent.
  • the embodiment of the present application provides a device connection method, which is applied to a Bluetooth audio device, and the method specifically includes the following steps:
  • Step 31 acquiring identification information of the first target device.
  • the above-mentioned first target device is a terminal device configured with a classic Bluetooth function and a low-power Bluetooth audio function, and can support the coexistence of two types of Bluetooth connections (that is, support the establishment of a classic Bluetooth connection and a Bluetooth connection at the same time.
  • Bluetooth low energy audio connection for example: a further Bluetooth low energy audio connection can be established while maintaining a classic Bluetooth connection, or a classic Bluetooth connection can be further established while maintaining a low energy Bluetooth audio connection), or only allow One type of Bluetooth connection exists (for example, if a Bluetooth low energy audio connection is further established in a scenario where a Bluetooth connection has been established through classic Bluetooth, then the established classic Bluetooth connection needs to be disconnected (automatically disconnected or manually disconnected); or , to establish a Bluetooth low energy audio connection in the scenario where a Bluetooth low energy audio connection has been established, the established Bluetooth low energy audio connection needs to be disconnected (automatically disconnected or manually disconnected)).
  • the above-mentioned first target device may also be a terminal device configured with a low-power Bluetooth audio function but not configured with a classic Bluetooth function.
  • the first target device may be a terminal device such as a smart phone, a handheld computer, or a tablet computer. Do limited.
  • the Bluetooth audio device can obtain the identification information of the first target device from the first target device through classic Bluetooth, or obtain the identification information of the first target device from other terminal devices (other terminal devices store the identification information of the first target device) through classic Bluetooth. ) to obtain the identification information of the first target device.
  • the manner of obtaining the identification information of the first target device from the first target device or other terminal devices through classic bluetooth will be specifically described in other subsequent embodiments.
  • other wireless communication methods can also be used to obtain the first target device or obtain the identification information of the first target device from other terminal devices. limited.
  • the above identification information is mainly used to characterize the identity of the first target device, and the identification information may specifically include one or more of a Bluetooth low energy address, a device identity, a device name, and the like.
  • Step 32 sending a Bluetooth low energy broadcast message carrying the above identification information.
  • the Bluetooth low energy broadcast message sent in step 32 carries the identification information acquired in step 31.
  • the Bluetooth low energy broadcast message is used to instruct the first target device to initiate a Bluetooth low energy audio connection to the Bluetooth audio device.
  • the Bluetooth low energy broadcast message when the identification information carried in the Bluetooth low energy broadcast message is the Bluetooth low energy address of the first target device (that is, the physical mac address of Bluetooth low energy), the Bluetooth low energy The directional connectable broadcast (ADV_DIRECT_IND) message defined by the public protocol in the technology realizes the transmission of low-power Bluetooth broadcast messages.
  • the directional connectable broadcast message carries the Bluetooth address of the target device (that is, the Bluetooth mac address), but in related technologies, the Bluetooth address carried in the directional connectable broadcast message is generally fixed at the factory, such as For the bluetooth remote controller corresponding to the TV, the mac address carried in the directional connectable broadcast message sent by the bluetooth remote controller is set as the bluetooth address of the TV before leaving the factory.
  • the Bluetooth address carried in the directional connectable broadcast message can be modified each time the directional connectable broadcast message is sent, so as to realize the sending of the Bluetooth low energy broadcast message.
  • Bluetooth low energy broadcast messages can be sent through a private protocol. Specifically, it is possible to send a low-power command through the private AT command of the hands-free mode (Hands Free Profile, HFP) (the AT command is a standard interactive command applied to the connection and communication between the terminal device and the Bluetooth device (such as a Bluetooth audio device)). Consumes Bluetooth broadcast messages. Of course, it is also possible to send low-power Bluetooth broadcast messages through private commands of the Serial Port Profile (SPP).
  • SPP Serial Port Profile
  • the Bluetooth audio device can first establish an asynchronous connectionless (ACL) type Bluetooth link with the terminal device (ie, the first target device), and then perform HFP For the connection with A2DP, after the HFP connection is successful, the Bluetooth low energy broadcast message can be transmitted by sending a private AT command. And if the Bluetooth low energy broadcast message is sent through the private command of SPP, after the Bluetooth audio device and the terminal device (ie, the first target device above) establish an SPP connection, the Bluetooth low power broadcast message can be transmitted on the SPP by sending a private command .
  • ACL asynchronous connectionless
  • Step 33 receiving the Bluetooth low energy connection request sent by the first target device.
  • the device pointed to by the low-power Bluetooth broadcast message is the first target device, indicating that the Bluetooth audio device will establish a LE Audio connection with the first target device .
  • the first target device determines that the identification information carried in the Bluetooth low energy broadcast message matches its own identification information, and sends a Bluetooth low energy connection request to the Bluetooth audio device (that is, initiate a low-power Bluetooth audio connection), and after other terminal devices receive the low-power Bluetooth broadcast message, because they are not the device pointed to by the low-power Bluetooth broadcast message (that is, determine that the low-power Bluetooth broadcast message).
  • the identification information carried in the device does not match its own identification information), so the Bluetooth low energy connection request is not sent to the Bluetooth audio device (that is, the Bluetooth low energy audio connection is not initiated).
  • Step 34 Establish a Bluetooth low energy audio connection with the first target device in response to the Bluetooth low energy connection request.
  • step 34 when the Bluetooth audio device receives the Bluetooth low energy connection request from the first target device, in response to the Bluetooth low power connection request, it establishes a LE Audio connection with the first target device, and specifically establishes a LE Audio connection.
  • the connection can be implemented with reference to the existing technology, and will not be repeated here.
  • the Bluetooth low energy broadcast message sent by the Bluetooth audio device since the Bluetooth low energy broadcast message sent by the Bluetooth audio device carries the identification information of the target device, when other devices receive the Bluetooth low energy broadcast message, they will It is not the target device referred to in the Bluetooth low energy broadcast message, and will not initiate a Bluetooth low energy audio connection to the Bluetooth audio device. Only when the target device receives the Bluetooth low energy broadcast message, it will initiate a connection to the Bluetooth audio device. Low-power Bluetooth audio connection, so as to ensure that the Bluetooth audio device can establish a LE Audio connection with the target device, avoiding the mistaken connection between the Bluetooth audio device and other devices, and reducing the incidence of the Bluetooth audio device being mistakenly connected to the terminal device.
  • the embodiment of the present application provides a device connection method, which is applied to a Bluetooth audio device, and the method specifically includes the following steps:
  • Step 41 establish a classic Bluetooth connection with the second target device.
  • the above-mentioned second target device may be a device to which the Bluetooth audio device has been connected before, so the Bluetooth audio device may be in the connection-back state (the connection-back state refers to when the Bluetooth audio device is awakened in the standby state)
  • the connection-back state refers to when the Bluetooth audio device is awakened in the standby state
  • a classic Bluetooth connection is established with the second target device by sending a connection back request to the second target device to request the establishment of a classic Bluetooth connection with the second target device. Bluetooth connection.
  • the above-mentioned second target device can also be a device that has not been connected to the Bluetooth audio device. pair. After the pairing is successful, a classic Bluetooth connection is established with the second target device by responding to the classic Bluetooth connection request sent by the second target device.
  • the Bluetooth audio device can be triggered to enter the pairing state through the pairing control switch of the Bluetooth audio device, and when the Bluetooth audio device enters the pairing state, the second target device can query and scan the Bluetooth audio device, and After successfully pairing with the Bluetooth audio device, send a classic Bluetooth connection request to the Bluetooth audio device.
  • the second target device is a mobile phone
  • the name of the Bluetooth audio device is Enco X
  • the Bluetooth audio device enters the pairing state as shown in Figure 5
  • the mobile phone receives an instruction to open the setting icon
  • the mobile phone will The setting interface shown in Figure 6 is displayed on the display screen.
  • the mobile phone When the mobile phone receives the instruction to turn on the Bluetooth setting button, the mobile phone will display the Bluetooth operation interface shown in Figure 7 on the display screen, which contains the current query of the mobile phone.
  • the names of the scanned Bluetooth devices (such as Little Cow, Enco X and Air in Figure 7), when the mobile phone receives the pairing instruction input to Enco X, the mobile phone will pair with the Bluetooth audio device, and after the pairing is successful Establish a classic Bluetooth connection with a Bluetooth audio device by sending a Classic Bluetooth connection request to the Bluetooth audio device.
  • the Bluetooth audio device after the Bluetooth audio device enters the pairing state, the Bluetooth audio device broadcasts a traditional Bluetooth low energy broadcast message (the Bluetooth low energy broadcast message does not carry the identification information of the target device).
  • the Bluetooth audio device in order to prevent the Bluetooth audio device from mistakenly connecting to other devices except the first target device, when the Bluetooth audio device enters the pairing state, it no longer sends the above-mentioned traditional low-power Bluetooth broadcast message.
  • Step 42 Receive the identification information of the first target device sent by the second target device through the classic Bluetooth connection.
  • the above-mentioned second target device may be the first target device, as shown in FIG. Then receive the identification information of the first target device sent by the first target device through the classic Bluetooth connection with the first target device, so that the Bluetooth audio device can directly connect to the first target device without the participation of a third-party device. The device obtains the identification information of the first target device, so as to effectively avoid information leakage.
  • the Bluetooth audio device after the Bluetooth audio device successfully establishes a classic Bluetooth connection with the first target device, it can implement the transmission of the identification information of the first target device based on a private command of the SPP or HFP protocol. Specifically, if the transmission of the identification information of the first target device is realized through the private AT command of HFP, the Bluetooth audio device can first establish an ACL-type Bluetooth link with the first target device, and then perform an HFP connection. After the HFP connection is successful Then, the transmission of the identification information of the first target device can be realized by sending a private AT command.
  • the transmission of the identification information of the first target device can be realized by sending a private command on the SPP .
  • a Bluetooth audio device when a Bluetooth audio device establishes a classic Bluetooth with the first target device, it first establishes a basic link with the first target device (the basic link is an ACL-type Bluetooth chain) Therefore, after the Bluetooth audio device establishes a basic link with the first target device, it can realize the transmission of the identification information of the first target device by establishing a successful basic link. That is, the Bluetooth audio device can transmit the identification information of the first target device before the classic Bluetooth connection with the first target device is successfully established.
  • the Bluetooth audio device when the Bluetooth audio device establishes an ACL-type Bluetooth link with the first target device, after the ACL-type Bluetooth link is successfully established, the first target device can be transmitted to the Bluetooth audio device through the A2DP, HFP or SPP protocol. information. That is, after the Bluetooth audio device establishes an ACL-type Bluetooth link with the first target device, it can acquire the identification information of the first target device from the first target device through the Bluetooth link.
  • the above-mentioned second target device may be other devices except the first target device, and the maximum number of connections of Bluetooth audio devices is greater than or equal to 2, so that the classic Bluetooth can be established with multiple terminal devices at the same time. connection and/or LE Audio connection.
  • the identification information of the first target device is stored in the second target device (for example, the second target device and the first target device may be two device, so the identification information of the first target device can be stored in the second target device), and the Bluetooth audio device can obtain the identification information of the first target device from the second target device through a classic Bluetooth connection with the second target device .
  • the Bluetooth audio device can realize the transmission of the identification information of the first target device based on a private command of the SPP or HFP protocol after successfully establishing a classic Bluetooth connection with the second target device. Specifically, if the transmission of the identification information of the first target device is realized through the private AT command of HFP, the Bluetooth audio device can first establish an ACL-type Bluetooth link with the second target device, and then perform an HFP connection. After the HFP connection is successful Then, the transmission of the identification information of the first target device can be realized by sending a private AT command.
  • the transmission of the identification information of the first target device is realized through the private command of SPP, after the Bluetooth audio device establishes an SPP connection with the second target device, the transmission of the identification information of the first target device can be realized by sending a private command on the SPP .
  • the Bluetooth audio device when a Bluetooth audio device establishes classic Bluetooth with a second target device, it first establishes a basic link with the second target device (the basic link is an ACL-type Bluetooth chain Therefore, the Bluetooth audio device can also realize the transmission of the identification information of the first target device by establishing a successful basic link after establishing the basic link with the second target device. That is, the Bluetooth audio device can transmit the identification information of the first target device before the classic Bluetooth connection with the second target device is successfully established.
  • the Bluetooth audio device when the Bluetooth audio device establishes an ACL-type Bluetooth link with the second target device, after the ACL-type Bluetooth link is successfully established, the first target device can be transmitted to the Bluetooth audio device through the A2DP, HFP or SPP protocol. information. That is, after the Bluetooth audio device establishes an ACL-type Bluetooth link with the second target device, it can obtain the identification information of the first target device from the second target device through the Bluetooth link.
  • Step 43 sending a Bluetooth low energy broadcast message carrying the above identification information.
  • the Bluetooth low energy broadcast message is used to instruct the first target device to initiate a Bluetooth low energy audio connection to the Bluetooth audio device.
  • Step 44 receiving the Bluetooth low energy connection request sent by the first target device.
  • Step 45 in response to the Bluetooth low energy connection request, establish a Bluetooth low energy audio connection with the first target device.
  • the Bluetooth audio device establishes a classic Bluetooth connection with the second target device, and obtains the identification information of the first target device from the second target device through the classic Bluetooth connection, so that the Bluetooth
  • the audio device can send a Bluetooth low energy broadcast message carrying the identification information of the first target device, and because the Bluetooth low energy broadcast message sent by the Bluetooth audio device carries the identification information of the target device, other devices can receive the When Bluetooth low energy broadcasts a message, since it is not the target device referred to in the Bluetooth low energy broadcast message, it will not initiate a Bluetooth low energy audio connection to the Bluetooth audio device, and only the first target device is receiving the Bluetooth low energy When broadcasting a message, a low-power Bluetooth audio connection will be initiated to the Bluetooth audio device, thereby ensuring that the Bluetooth audio device can establish a LE Audio connection with the first target device, avoiding the mistaken connection between the Bluetooth audio device and other devices, and reducing the error of the Bluetooth audio device. Even the incidence of terminal equipment.
  • the embodiment of the present application provides a device connection method, the method is applied to a Bluetooth audio device, and the Bluetooth audio device is a device that supports the establishment of a classic Bluetooth connection and a Bluetooth low-power audio connection at the same time, the method Specifically include the following steps:
  • Step 1001 Obtain identification information of a first target device during the process of establishing a classic Bluetooth connection with a second target device.
  • the Bluetooth audio device First establish an ACL-type Bluetooth link or an SCO-type Bluetooth link with the second target device. After the basic link is successfully established, the second target device can transmit the identity of the first target device based on the successfully established basic link. information. That is, the Bluetooth audio device can transmit the identification information of the first target device before the classic Bluetooth connection with the second target device is successfully established.
  • the Bluetooth audio device when the Bluetooth audio device establishes an ACL-type Bluetooth link with the second target device, after the ACL-type Bluetooth link is successfully established, the first target device can be transmitted to the Bluetooth audio device through the A2DP, HFP or SPP protocol. information. That is, after the Bluetooth audio device establishes an ACL-type Bluetooth link with the second target device, it can obtain the identification information of the first target device from the second target device through the Bluetooth link.
  • the Bluetooth audio device When the Bluetooth audio device establishes an SCO-type Bluetooth link with the second target device, after the SCO-type Bluetooth link is successfully established, the identification information of the first target device can be transmitted to the Bluetooth audio device through the A2DP or HFP protocol. That is, after the Bluetooth audio device establishes an SCO-type Bluetooth link with the second target device, it can obtain the identification information of the first target device from the second target device through the Bluetooth link.
  • the Bluetooth audio device can obtain the identification information of the first target device from the second target device before the classic Bluetooth connection between it and the second target device is successfully established, thereby shortening the Bluetooth The time when the audio device obtains the identification information of the target device, so that the Bluetooth audio device can establish a LE Audio connection with the target device as soon as possible.
  • the above-mentioned second target device may be a device to which the Bluetooth audio device has been connected before, so the Bluetooth audio device may be in the connection-back state (the connection-back state refers to when the Bluetooth audio device is awakened in the standby state) In the state of initiating a connection to the device that was disconnected last time), by sending a connection back request to the second target device to request to establish a classic Bluetooth connection with the second target device, initiate a classic bluetooth connection to the second target device. Bluetooth connection.
  • the above-mentioned second target device can also be a device that has not been connected to the Bluetooth audio device. pair. After successful pairing, the Bluetooth audio device responds to a classic Bluetooth connection initiated by the second target device. In some embodiments of the present application, the Bluetooth audio device can be triggered to enter the pairing state through the pairing control switch of the Bluetooth audio device.
  • the Bluetooth audio device is paired with the second target device, the method of the classic Bluetooth connection initiated by the second target device, and the reason why the Bluetooth audio device does not send the traditional Bluetooth low-power broadcast message are the same as in the second embodiment, and the details can be Refer to the relevant description of Embodiment 2, and details are not repeated here.
  • the above-mentioned second target device may be the first target device, that is, when the Bluetooth audio device wants to establish an LE Audio connection with the first target device, as shown in FIG.
  • the device obtains the identification information of the first target device from the first target device through the established ACL-type Bluetooth link or SCO-type Bluetooth link, so that the Bluetooth audio device can
  • the identification information of the first target device is directly obtained from the first target device, so as to effectively avoid information leakage.
  • the Bluetooth audio device can obtain the identification information of the first target device from the first target device before it successfully establishes a classic Bluetooth connection with the first target device, thereby shortening the Bluetooth audio The time when the device obtains the identification information of the target device, so that the Bluetooth audio device can establish a LE Audio connection with the target device as soon as possible.
  • the above-mentioned second target device may be other devices except the first target device, and the maximum number of connections of Bluetooth audio devices is greater than or equal to 2, so that the classic Bluetooth can be established with multiple terminal devices at the same time. connection and/or LE Audio connection.
  • the identification information of the first target device is stored in the second target device (for example, the second target device and the first target device may be two device, so the identification information of the first target device can be stored in the second target device), so the Bluetooth audio device can pass the established ACL type Bluetooth link or SCO during the process of establishing a classic Bluetooth connection with the second target device. type of Bluetooth link, and obtain the identification information of the first target device from the second target device.
  • the Bluetooth audio device can obtain the identification information of the first target device from the second target device before it successfully establishes a classic Bluetooth connection with the second target device, thereby shortening the Bluetooth audio The time when the device obtains the identification information of the target device, so that the Bluetooth audio device can establish a LE Audio connection with the target device as soon as possible.
  • Step 1002 sending a Bluetooth low energy broadcast message carrying the above identification information.
  • the Bluetooth low energy broadcast message is used to instruct the first target device to initiate a Bluetooth low energy audio connection to the Bluetooth audio device.
  • Step 1003 receiving the Bluetooth low energy connection request sent by the first target device.
  • Step 1004 in response to the Bluetooth low energy connection request, establish a Bluetooth low energy audio connection with the first target device.
  • step 1002 to step 1004 are the same as the specific embodiments of step 32 to step 34 in the first embodiment.
  • step 32 to step 34 are the same as the specific embodiments of step 32 to step 34 in the first embodiment.
  • the Bluetooth audio device obtains the identification information of the first target device from the second target device during the process of establishing classic Bluetooth with the second target device, so that the Bluetooth audio device can Sending a Bluetooth low-power broadcast message carrying the identification information of the first target device, and because the Bluetooth low-power broadcast message sent by the Bluetooth audio device carries the identification information of the target device, other devices receive the low-power
  • Bluetooth broadcasts a message since it is not the target device referred to in the Bluetooth low energy broadcast message, it will not initiate a Bluetooth low energy audio connection to the Bluetooth audio device, and only the first target device receives the Bluetooth low energy broadcast message , will initiate a low-power bluetooth audio connection to the bluetooth audio device, so as to ensure that the bluetooth audio device can establish a LE audio connection with the first target device, avoid the mistaken connection between the bluetooth audio device and other devices, and reduce the mistaken connection between the bluetooth audio device and the terminal device incidence rate.
  • the embodiment of the present application provides a device connection method, which is applied to a Bluetooth audio device, and the method specifically includes the following steps:
  • Step 1301 Acquire identification information of a first target device according to a preset condition.
  • the first target device is at least one device screened by the Bluetooth audio device according to the preset condition.
  • the above-mentioned preset conditions may be: the device with the highest priority among the devices connected to the Bluetooth audio device is used as the first target device, and the single connection time of the devices connected to the Bluetooth audio device is the shortest.
  • the long device is the first target device
  • the device with the most connected Bluetooth audio devices is the first target device
  • the device with the most recent disconnection among the Bluetooth audio devices is the first target device.
  • the specific form of the foregoing preset condition is not limited, and the preset condition can be set according to specific situations.
  • the priority, single connection time, connection times, and connection time of the devices connected to the Bluetooth audio device can be recorded in the connection record of the Bluetooth audio device, and the connection record also stores the connection record of the Bluetooth audio device.
  • Identification information for each device That is, the Bluetooth audio device can acquire the identification information of the first target device from its own connection record.
  • the first target device may specifically be the device with the highest priority among the devices connected to the Bluetooth audio device, the device with the longest single connection time among the devices connected to the Bluetooth audio device, and the device with the largest number of connections among the devices connected to the Bluetooth audio device , or the last disconnected device among the devices that the Bluetooth audio device was connected to.
  • the Bluetooth audio device does not need to perform information interaction with other devices, and only needs to query its own connection records to obtain the identification information of the first target device, so as to avoid occupying communication resources. This greatly shortens the time for the Bluetooth audio device to obtain the identification information of the target device, so that the Bluetooth audio device can establish a LE Audio connection with the target device as soon as possible.
  • Step 1302 sending a Bluetooth low energy broadcast message carrying the above identification information.
  • the Bluetooth low energy broadcast message is used to instruct the first target device to initiate a Bluetooth low energy audio connection to the Bluetooth audio device.
  • Step 1303 receiving the Bluetooth low energy connection request sent by the first target device.
  • Step 1304 in response to the Bluetooth low energy connection request, establish a Bluetooth low energy audio connection with the first target device.
  • step 1302 to step 1304 are the same as the specific embodiments of step 32 to step 34 in the first embodiment.
  • step 1304 please refer to the relevant description of the first embodiment, which will not be repeated here.
  • the Bluetooth audio device obtains the identification information of the first target device by querying its own connection records, so that the Bluetooth audio device can send a low-power message carrying the identification information of the first target device. It consumes Bluetooth broadcast messages, and because the Bluetooth low energy broadcast messages sent by the Bluetooth audio device carry the identification information of the target device, when other devices receive the Bluetooth low energy broadcast messages, because they are not Bluetooth low energy
  • the target device referred to in the broadcast message will not initiate a Bluetooth low-power audio connection to the Bluetooth audio device. Only when the first target device receives the Bluetooth low-power broadcast message will it initiate a low-power connection to the Bluetooth audio device.
  • Bluetooth audio connection so as to ensure that the Bluetooth audio device can establish a LE Audio connection with the first target device, avoiding the mistaken connection between the Bluetooth audio device and other devices, and reducing the incidence of the Bluetooth audio device being mistakenly connected to the terminal device.
  • the embodiment of the present application provides a device connection method, which is applied to a terminal device, and the method specifically includes the following steps:
  • Step 1401 receiving a Bluetooth low energy broadcast message sent by a Bluetooth audio device.
  • the terminal device can be configured with a classic Bluetooth function and a low-power Bluetooth audio function, and can support the coexistence of two types of Bluetooth connections (that is, support the simultaneous establishment of a classic Bluetooth connection and a low-power Bluetooth audio connection.
  • Bluetooth low-power Bluetooth audio connection such as: while maintaining a classic Bluetooth connection, you can further establish a low-power Bluetooth audio connection, or while maintaining a low-power Bluetooth audio connection, you can further establish a classic Bluetooth connection), or only allow one type of Bluetooth connection at a time Existence (if a Bluetooth low-power audio connection is further established in a scenario where a Bluetooth connection has been established through classic Bluetooth, the established classic Bluetooth connection needs to be disconnected (automatically or manually); or, after the low-power In the scenario where Bluetooth audio is used to establish a Bluetooth connection, a Bluetooth low-power audio connection is established, and the established Bluetooth low-power audio connection needs to be disconnected (automatically disconnected or manually disconnected)).
  • the terminal device in the embodiment of the present application may also be a terminal device configured with a low-power Bluetooth audio function but not configured with a classic Bluetooth function.
  • the terminal device may be a smart phone, a handheld computer, a tablet computer, or other terminal devices. No limit.
  • the above Bluetooth low energy broadcast message carries the identification information of the target device.
  • the above-mentioned identification information is mainly used to characterize the identity of the target device
  • the above-mentioned low-power Bluetooth broadcast message carries the identification information of the target device mainly to indicate that the Bluetooth audio device is currently establishing an LE with the target device. Audio connection, indicating that other devices other than the target device do not need to respond when receiving the low-power Bluetooth broadcast message, and only the target device needs to initiate an LE Audio connection to the Bluetooth audio device when receiving the low-power Bluetooth broadcast message .
  • the identification information of the target device may specifically include one or more of a Bluetooth low energy address of the target device, an identity of the target device, and a device name of the target device.
  • the low-power Bluetooth broadcast message when the above-mentioned low-power Bluetooth broadcast message is the low-power Bluetooth address of the target device (that is, the physical (mac) address of low-power Bluetooth), the low-power Bluetooth broadcast message can be a Bluetooth audio device through a low-power
  • the directional connectable broadcast message defined by the public protocol in the Bluetooth technology is sent, and the directional connectable broadcast message includes the Bluetooth low energy address of the target device.
  • the identification information carried by the Bluetooth low energy broadcast message is the Bluetooth low energy address of the first target device, the device identity, the device name, or other information used to characterize the identity of the first target device
  • the above Bluetooth low energy broadcast Messages can be sent by Bluetooth audio devices via a proprietary protocol. For example, send through the private AT command of HFP or the private command of SPP.
  • the terminal device first needs to establish an ACL-type Bluetooth link with the Bluetooth audio device, and then connect HFP and A2DP. After the HFP connection is successful You can receive low-power Bluetooth broadcast messages by sending private AT commands.
  • the Bluetooth audio device sends a Bluetooth low energy broadcast message through a private command of SPP, the terminal device needs to establish an SPP connection with the Bluetooth audio device, and then receive a low power consumption Bluetooth broadcast message through a private command on the SPP.
  • Step 1402 when the identification information of the terminal device matches the identification information of the target device carried in the Bluetooth low energy broadcast message, send a Bluetooth low energy connection request to the Bluetooth audio device.
  • the Bluetooth low energy connection request is used to request to establish a Bluetooth low energy audio connection with the Bluetooth audio device.
  • the Bluetooth 5.2 standard defines that the terminal device itself is configured with a whitelist for LE Audio.
  • the whitelist is a security mechanism, and the whitelist specifically records the Bluetooth devices that the terminal device can scan and connect to. Bluetooth address. Specifically, when a terminal device establishes a classic Bluetooth connection with a certain Bluetooth device, the Bluetooth device can be recorded in the white list of the terminal device, and of course the Bluetooth device can also be recorded in the white list of the terminal device by inputting.
  • the terminal device when the terminal device determines that its own identification information matches the identification information of the target device carried in the Bluetooth low energy broadcast message, it further The Bluetooth address of the Bluetooth audio device carried in the device, determine whether the Bluetooth audio device is a device recorded in the white list of the terminal device, and only when the Bluetooth audio device is a device recorded in the white list of the terminal device, the Bluetooth The audio device sends a Bluetooth Low Energy connection request.
  • the identification information of the terminal device includes one or more of the Bluetooth low energy address of the terminal device, the identity of the terminal device, and the device name of the terminal device.
  • the specific form of the identification information of the terminal device is the same as the specific form of the identification information of the target device carried in the Bluetooth low energy broadcast message, for example, the identification information of the target device carried in the Bluetooth low energy broadcast message is the target Bluetooth low energy address of the device, the identification information of the terminal device is the Bluetooth low energy address of the terminal device.
  • the terminal device after receiving the Bluetooth low energy broadcast message, compares the identification information carried in the Bluetooth low energy broadcast message with the identification information of the terminal device itself, and if the two are the same, It considers itself to be the device to be connected to the Bluetooth audio device, and when it is determined that the Bluetooth audio device is a device in the white list, it sends a Bluetooth low-power connection request to the Bluetooth audio device, and establishes a Bluetooth low-power audio connection with the Bluetooth audio device. .
  • the terminal device after the terminal device receives the Bluetooth low-power broadcast message sent by the Bluetooth audio device, only when it is determined that it is a Bluetooth audio device to establish a LE Audio connection, and the Bluetooth
  • the audio device is a device in the white list of the terminal device, it sends a Bluetooth low-power connection request to the Bluetooth audio device, and establishes a LE Audio connection with the above-mentioned Bluetooth audio device, thereby reducing the incidence of the Bluetooth audio device being mistakenly connected to the terminal device.
  • the terminal device may also send the identification information of the terminal device to the Bluetooth audio device, so that the Bluetooth audio device can A directed connectable broadcast message carrying the identification information of the terminal device is sent.
  • the first specific implementation manner of sending the identification information of the terminal device to the Bluetooth audio device is: first establish a classic Bluetooth connection with the above-mentioned Bluetooth audio device, and then send the identification information of the above-mentioned terminal device to the above-mentioned Bluetooth audio device through the classic Bluetooth connection .
  • the above-mentioned terminal device may be a device that has been connected to the Bluetooth audio device before, and the Bluetooth audio device may send a request for establishing a classic Bluetooth connection with the terminal device to the terminal device.
  • the terminal device may establish a connection with the Bluetooth audio device by receiving and responding to the connection back request sent by the Bluetooth audio device before sending the identification information of the terminal device to the Bluetooth audio device.
  • Classic Bluetooth connection in order to establish a classic Bluetooth connection with a Bluetooth audio device.
  • the terminal device can also be a device that has not been connected to the Bluetooth audio device. Therefore, in order to send the identification information of the terminal device to the Bluetooth audio device, the terminal device can establish a classic Bluetooth connection with the Bluetooth audio device when the Bluetooth audio device is in the pairing state. Specifically, before the terminal device sends the identification information of the terminal device to the Bluetooth audio device, it can establish a classic Bluetooth connection with the Bluetooth audio device by sending a classic Bluetooth connection request to the Bluetooth audio device when the Bluetooth audio device is in the pairing state. connect. It should be noted that according to the white list defined in the Bluetooth 5.2 standard, terminal devices can only send low-power Bluetooth connection requests to devices in the white list. Therefore, in order to facilitate the establishment of LE Audio connections between terminal devices and Bluetooth audio devices, terminal devices must After establishing a classic Bluetooth connection with a Bluetooth audio device for the first time, it is necessary to record the above Bluetooth audio device in the white list of the above terminal device.
  • the above-mentioned pairing state means that the above-mentioned Bluetooth audio device is in a discoverable and connectable state. It should be noted that, in some embodiments of the present application, when the Bluetooth audio device enters the pairing state, the terminal device can query and scan the Bluetooth audio device, complete pairing with the Bluetooth audio device, and send the classic Bluetooth audio message to the Bluetooth audio device. Connection request.
  • the terminal device after the terminal device establishes a classic Bluetooth connection with the Bluetooth audio device, it can implement the transmission of the identification information of the terminal device based on a private command of the SPP or HFP protocol.
  • the terminal device can first establish an ACL-type Bluetooth link with the Bluetooth audio device, and then connect to HFP. After the HFP connection is successful, it can pass Send the private AT command to realize the transmission of the identification information of the terminal device. And if the transmission of the identification information of the terminal device is realized through the private command of the SPP, the terminal device can realize the transmission of the identification information of the terminal device by sending a private command on the SPP after establishing an SPP connection with the Bluetooth audio device.
  • the terminal device when a terminal device establishes classic Bluetooth with a Bluetooth audio device, it first establishes a basic link with the Bluetooth audio device (the basic link is an ACL-type Bluetooth link or an SCO type Bluetooth link), therefore, the terminal device can also realize the transmission of the identification information of the terminal device by establishing a successful basic link after establishing a basic link with the Bluetooth audio device. That is, the terminal device can transmit the identification information of the terminal device before the classic Bluetooth connection with the Bluetooth audio device is successfully established.
  • the basic link is an ACL-type Bluetooth link or an SCO type Bluetooth link
  • the identification information of the terminal device can be transmitted to the Bluetooth audio device through the A2DP, HFP or SPP protocol. That is, after the terminal device establishes an ACL-type Bluetooth link with the Bluetooth audio device, it can transmit the identification information of the terminal device to the Bluetooth audio device through the Bluetooth link.
  • the second specific implementation manner of sending the identification information of the terminal device to the Bluetooth audio device is: sending the identification information of the terminal device to the Bluetooth audio device during the process of establishing a classic Bluetooth connection with the Bluetooth audio device.
  • ACL-type Bluetooth link there are two basic links, ACL-type Bluetooth link and SCO-type Bluetooth link. Therefore, when the terminal device establishes classic Bluetooth with the Bluetooth audio device, First establish an ACL-type Bluetooth link or an SCO-type Bluetooth link with the Bluetooth audio device, and after the basic link is successfully established, the terminal device can transmit the identification information of the terminal device based on the successfully established basic link.
  • the terminal device when the terminal device establishes an ACL-type Bluetooth link with the Bluetooth audio device, after the ACL-type Bluetooth link is successfully established, the terminal device can transmit the terminal device to the Bluetooth audio device through the A2DP, HFP or SPP protocol. identification information. That is, after the terminal device establishes an ACL-type Bluetooth link with the Bluetooth audio device, it can send the identification information of the terminal device to the Bluetooth audio device through the ACL-type Bluetooth link.
  • the terminal device When the terminal device establishes an SCO-type Bluetooth link with the Bluetooth audio device, after the SCO-type Bluetooth link is successfully established, the terminal device can transmit the identification information of the terminal device to the Bluetooth audio device through the A2DP or HFP protocol. That is, after the terminal device establishes an SCO-type Bluetooth link with the Bluetooth audio device, it can send the identification information of the terminal device to the Bluetooth audio device through the Bluetooth link.
  • the terminal device sends the identification information of the terminal device to the Bluetooth audio device before the classic Bluetooth connection with the Bluetooth audio device is successfully established, thereby shortening the time for the Bluetooth audio device to obtain the target device ID.
  • the time of the message so that the Bluetooth audio device can establish a LE Audio connection with the target device as soon as possible.
  • the above-mentioned terminal device may be a device that has been connected to the Bluetooth audio device before, and the Bluetooth audio device may send a request to the terminal device to establish a classic Bluetooth connection with the terminal device. Request to establish a classic Bluetooth connection with an end device.
  • the terminal device may establish a connection with the Bluetooth audio device by receiving and responding to the connection back request sent by the Bluetooth audio device before sending the identification information of the terminal device to the Bluetooth audio device.
  • Classic Bluetooth connection in order to establish a classic Bluetooth connection with a Bluetooth audio device.
  • the terminal device can also be a device that has not been connected to the Bluetooth audio device, and the terminal device can communicate with the Bluetooth audio device when the Bluetooth audio device is in a pairing state (the pairing state refers to the above-mentioned Bluetooth audio device being in a discoverable and connectable state).
  • Establish a classic Bluetooth connection Specifically, before the terminal device sends the identification information of the terminal device to the Bluetooth audio device, it can establish a classic Bluetooth connection with the Bluetooth audio device by sending a classic Bluetooth connection request to the Bluetooth audio device when the Bluetooth audio device is in the pairing state. connect.
  • terminal devices can only send low-power Bluetooth connection requests to devices in the white list. Therefore, in order to facilitate the establishment of LE Audio connections between terminal devices and Bluetooth audio devices, terminal devices After establishing a classic Bluetooth connection with the Bluetooth audio device for the first time, record the above Bluetooth audio device in the white list of the above terminal device.
  • a third specific implementation manner of sending the identification information of the terminal device to the Bluetooth audio device is: the terminal device may also send the identification information of the terminal device to the Bluetooth audio device through other terminal devices.
  • the above-mentioned other terminal device may be a device that has established a classic Bluetooth connection or an LE Audio connection with the above-mentioned terminal device, so the other terminal device stores the identification information of the terminal device.
  • the manner in which other terminal devices send the identification information of the terminal device to the Bluetooth audio device is the same as the manner in which the terminal device sends the identification information of the terminal device to the Bluetooth audio device, and will not be repeated here.
  • the Bluetooth audio device is a TWS earphone.
  • the TWS earphone has a connection record with an external device and the TWS earphone is not in the pairing state, after the TWS earphone is opened, it will directly connect back to the latest connection with the external device.
  • the TWS headset disconnects the classic Bluetooth of the connected terminal device M, and obtains the identification information of the terminal device M, and then sends a "directed connectable" type of Bluetooth low-power broadcast message, where the low-power Bluetooth broadcast message carries the terminal device M's identification information, when the terminal device M receives the "directed connectable" Bluetooth low energy broadcast message sent by the TWS headset, it first judges whether the TWS headset is a device in the whitelist of the terminal device M, and if so, sends a message to the TWS headset.
  • the headset sends a low-power Bluetooth audio connection request to establish a low-power Bluetooth audio connection with the TWS headset; when other terminal devices (such as terminal device N in Figure 15) receive the low-power Bluetooth broadcast message, because they are not The device referred to in the Bluetooth Low Energy advertising message will not initiate a connection with the headset.
  • the Bluetooth audio device is a TWS headset.
  • the TWS headset When the TWS headset is connected to the terminal device X through classic Bluetooth and Bluetooth low energy audio, the user wants to use a new terminal device Y to establish a connection with the TWS headset , the user can control the TWS headset to enter the pairing state, so that the TWS headset disconnects all connections with the terminal device X, and the classic Bluetooth of the TWS headset enters the "discoverable and connectable" state, and does not send traditional low-power Bluetooth broadcast messages.
  • the user can operate on the terminal device Y to establish a classic Bluetooth connection with the TWS earphone.
  • the TWS earphone When the TWS earphone recognizes that it is connecting with the terminal device Y, the TWS earphone will obtain the identification information of the terminal device Y, and then start sending the "directed connectable" message. "type Bluetooth low energy broadcast message, wherein the low energy Bluetooth broadcast message carries the identification information of the terminal device Y.
  • the terminal device Y After receiving the low-power Bluetooth broadcast message, the terminal device Y first judges whether the TWS headset is a device in the whitelist of the terminal device Y, and if so, sends a low-power Bluetooth audio connection request to the TWS headset, thereby realizing The terminal device Y is connected to the Bluetooth low-power audio of the TWS headset.
  • the terminal device X receives the low-power Bluetooth broadcast message, it will not initiate the Bluetooth low-power broadcast message because it is not the device referred to in the low-power Bluetooth broadcast message. connection to the headset.
  • the Bluetooth audio device is a TWS headset, and the TWS headset stores a connection record with an external device.
  • the TWS headset wants to establish a low-power Bluetooth audio with the terminal device T with the highest priority in the connection record
  • the terminal device T receives the "directed connectable" Bluetooth low energy broadcast message sent by the TWS headset
  • it first judges whether the TWS headset is a device in the whitelist of the terminal device T, and if so, sends a message to the TWS headset Send a low-power Bluetooth audio connection request to establish a low-power Bluetooth audio connection with the TWS headset, and when other terminal devices (such as the terminal device S in Figure 17) receive the low-power Bluetooth broadcast message, because they are not low-power
  • Bluetooth audio devices that support low-power Bluetooth audio connections and classic Bluetooth connections, whether it is a connection back scene or a scene of establishing a connection with a new device that has not been connected, Both can establish a Bluetooth low-power audio connection with the target device by sending a Bluetooth low-power broadcast message of the "directed connectable" type, thereby reducing the incidence of Bluetooth audio devices being mistakenly connected to terminal devices.
  • an embodiment of the present application provides a device connection device.
  • the device connection device 1800 is applied to a Bluetooth audio device.
  • the device connection device 1800 specifically includes:
  • the first sending module 1802 is configured to send a Bluetooth low power broadcast message carrying the identification information, where the Bluetooth low power broadcast message is used to instruct the first target device to initiate a Bluetooth low power audio connection to the Bluetooth audio device;
  • the first receiving module 1803 is configured to receive the Bluetooth low energy connection request sent by the first target device
  • the connection module 1804 is configured to establish a Bluetooth low energy audio connection with the first target device in response to the Bluetooth low energy connection request.
  • the Bluetooth low energy broadcast message sent by the Bluetooth audio device carries the identification information of the target device, and the terminal device determines whether to send the target device to the Bluetooth audio device based on the received identification information carried in the Bluetooth low energy broadcast message.
  • Bluetooth low energy connection request thereby preventing other terminal devices (ie, terminal devices other than the target device) from sending a Bluetooth low energy connection request to the Bluetooth audio device after receiving the Bluetooth low energy broadcast message. Since the Bluetooth audio device establishes a LE Audio connection with the corresponding terminal device in response to the received Bluetooth low energy connection request, it can avoid the Bluetooth audio device from being mistakenly connected to the aforementioned other terminal devices, thereby reducing the chance of the Bluetooth audio device being mistakenly connected to the terminal device incidence.
  • the acquiring module 1801 is specifically configured to establish a classic Bluetooth connection with the second target device, and receive the identification information of the first target device sent by the second target device through the classic Bluetooth connection.
  • the acquiring module 1801 is further specifically configured to acquire the identification information of the first target device during the process of establishing a classic Bluetooth connection with the second target device.
  • the acquisition module 1801 is further specifically configured to establish an asynchronous connectionless ACL-type Bluetooth link with the above-mentioned second target device, and obtain the above-mentioned first link from the second target device through the above-mentioned asynchronous connectionless type Bluetooth link Identification information of a target device.
  • the above-mentioned first target device and the above-mentioned second target device are the same device, and the above-mentioned first target device is a device that supports establishing a classic Bluetooth connection and a Bluetooth low-power audio connection at the same time.
  • the obtaining module 1801 is further specifically configured to obtain the identification information of the first target device according to preset conditions, and the first target device is at least one device screened by the Bluetooth audio device according to the preset conditions.
  • the acquisition module 1801 is further specifically configured to acquire the identification information of the first target device from the connection record of the Bluetooth audio device, where the first target device is the device that was disconnected from the Bluetooth audio device last time .
  • the device connection device 1800 also includes:
  • the first processing module is configured to send a connection back request to the second target device in a connection back state.
  • connection back state refers to a state in which the Bluetooth audio device initiates a connection to the last disconnected device when the Bluetooth audio device wakes up from the standby state, and the connection back request is used to request to establish a classic Bluetooth connection with the second target device.
  • the device connection device 1800 also includes:
  • the control module is used to enter the pairing state;
  • the above-mentioned pairing state means that the above-mentioned Bluetooth audio device is in a discoverable and connectable state;
  • the second processing module is configured to receive the classic Bluetooth connection request sent by the second target device.
  • the Bluetooth low energy broadcast message is a directional connectable broadcast message
  • the identification information carried in the Bluetooth low energy broadcast message is the Bluetooth low energy address of the first target device.
  • the above identification information includes at least one of the following information: Bluetooth low energy address, device identity, and device name.
  • the above-mentioned Bluetooth audio device is a device that supports establishing a classic Bluetooth connection and a Bluetooth low-power audio connection at the same time.
  • the embodiment of the present application provides a kind of bluetooth audio equipment
  • the bluetooth audio equipment D10 of this embodiment comprises: at least one processor D100 (only one processor is shown in Figure 19 ), a memory D101, a computer program D102 stored in the memory D101 and operable on the at least one processor D100, and a transceiver D103, when the processor D100 executes the computer program D102, the above-mentioned application to Bluetooth The steps in the embodiment of the device connection method of the audio device D10.
  • the processor D100 executes the computer program D102, the functions of each module/unit in the above embodiment of the device connection device applied to the Bluetooth audio device D10 are realized.
  • the so-called processor D100 may be a central processing unit (Central Processing Unit, CPU), and the processor D100 may also be other general-purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit) , ASIC), off-the-shelf programmable gate array (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • a general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like.
  • the memory D101 may be an internal storage unit of the Bluetooth audio device D10, such as a hard disk or a memory of the Bluetooth audio device D10.
  • the memory D101 may also be an external storage device of the Bluetooth audio device D10 in other embodiments, such as a plug-in hard disk equipped on the Bluetooth audio device D10, a smart memory card (Smart Media Card, SMC), Secure Digital (Secure Digital, SD) card, flash memory card (Flash Card), etc.
  • the memory D101 may also include both an internal storage unit of the Bluetooth audio device D10 and an external storage device.
  • the memory D101 is used to store operating systems, application programs, boot loaders (BootLoader), data and other programs, such as program codes of the computer programs.
  • the memory D101 can also be used to temporarily store data that has been output or will be output.
  • an embodiment of the present application provides a device connection device.
  • the device connection device 2000 is applied to a terminal device.
  • the device connection device 2000 includes:
  • the second receiving module 2001 is configured to receive a Bluetooth low-power broadcast message sent by a Bluetooth audio device; the above-mentioned Bluetooth low-power broadcast message carries identification information of the target device;
  • the second sending module 2002 is configured to send a Bluetooth low energy connection request to the Bluetooth audio device when the identification information of the terminal device matches the identification information of the target device carried in the Bluetooth low energy broadcast message.
  • the Bluetooth low energy connection request is used to request to establish a Bluetooth low energy audio connection with the above Bluetooth audio device.
  • the device connection device 2000 also includes:
  • the first execution module is configured to send the identification information of the terminal device to the Bluetooth audio device.
  • the above-mentioned first execution module is specifically configured to establish a classic Bluetooth connection with the above-mentioned Bluetooth audio device, and send the identification information of the above-mentioned terminal device to the above-mentioned Bluetooth audio device through the above-mentioned classic Bluetooth connection.
  • the above-mentioned first execution module is further specifically configured to send the identification information of the above-mentioned terminal device to the above-mentioned Bluetooth audio device during the process of establishing a classic Bluetooth connection with the above-mentioned Bluetooth audio device.
  • the above-mentioned first execution module is also specifically configured to establish an asynchronous connectionless type Bluetooth link with the above-mentioned Bluetooth audio device, and send the above-mentioned terminal device to the above-mentioned Bluetooth audio device through the above-mentioned asynchronous connectionless type Bluetooth link. Identification information.
  • the device connection device 2000 also includes:
  • the second execution module is configured to receive a connection back request sent by the above-mentioned Bluetooth audio device, and the above-mentioned connection back request is used to request to establish a classic Bluetooth connection with the above-mentioned terminal device.
  • the device connection device 2000 also includes:
  • the third execution module is configured to send a classic Bluetooth connection request to the above-mentioned Bluetooth audio device when the above-mentioned Bluetooth audio device is in a pairing state, and the above-mentioned pairing state means that the above-mentioned Bluetooth audio device is in a discoverable and connectable state;
  • the fourth execution module is configured to record the above-mentioned Bluetooth audio device in the white list of the above-mentioned terminal device.
  • the above-mentioned second sending module 2002 is specifically configured to send a Bluetooth low energy connection request to the above-mentioned Bluetooth audio device when the above-mentioned Bluetooth audio device is a device in the white list of the above-mentioned terminal device.
  • the above Bluetooth low energy broadcast message is a directional connectable broadcast message
  • the identification information carried in the above Bluetooth low energy broadcast message is the Bluetooth low energy address of the target device.
  • the above-mentioned identification information of the target device includes at least one of the following information: a Bluetooth low energy address of the target device, an identity of the target device, and a device name of the target device.
  • the above-mentioned terminal device is a device that supports simultaneous establishment of a classic Bluetooth connection and a low-power Bluetooth audio connection.
  • an embodiment of the present application provides a terminal device.
  • the terminal device E10 of this embodiment includes: at least one processor E100 (only one processor is shown in FIG. 21 ), A memory E101, a computer program E102 stored in the memory E101 and operable on the at least one processor E100, and a transceiver E103.
  • the processor E100 executes the computer program E102, the above-mentioned functions applied to the terminal device are implemented. Steps in the embodiment of the device connection method.
  • the processor E100 executes the computer program E102, functions of the modules/units in the above embodiment of the device connection apparatus applied to a terminal device are realized.
  • the terminal device E10 may be computing devices such as desktop computers, notebooks, palmtop computers, servers, server clusters, and cloud servers.
  • the terminal device may include, but not limited to, a processor E100 and a memory E101.
  • FIG. 9 is only an example of the terminal device E10, and does not constitute a limitation to the terminal device E10. It may include more or less components than those shown in the figure, or combine certain components, or different components. , for example, may also include input and output devices, network access devices, and so on.
  • the so-called processor E100 may be a central processing unit (Central Processing Unit, CPU), and the processor E100 may also be other general-purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit) , ASIC), off-the-shelf programmable gate array (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • a general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like.
  • the storage E101 may be an internal storage unit of the terminal device E10, such as a hard disk or a memory of the terminal device E10.
  • the memory E101 may also be an external storage device of the terminal device E10 in other embodiments, such as a plug-in hard disk equipped on the terminal device E10, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, flash memory card (Flash Card), etc.
  • the memory E101 may also include both an internal storage unit of the terminal device E10 and an external storage device.
  • the memory E101 is used to store operating systems, application programs, boot loaders (BootLoader), data and other programs, such as program codes of the computer programs.
  • the memory E101 can also be used to temporarily store data that has been output or will be output.
  • the embodiment of the present application also provides a computer-readable storage medium, the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the above-mentioned device connection method applied to a Bluetooth audio device are implemented, Or, when the computer program is executed by the processor, the steps of the above-mentioned device connection method applied to the terminal device are realized.
  • the embodiment of the present application also provides a chip, including a processor, the processor is used to read and execute the computer program stored in the memory, so as to execute the steps of the above-mentioned device connection method applied to the Bluetooth audio device, or execute the above-mentioned application Steps of a device connection method for a terminal device.
  • An embodiment of the present application provides a computer program product.
  • the terminal device can realize the steps of the above-mentioned device connection method applied to a Bluetooth audio device when executed, or when the terminal device executes Implement the steps that can realize the above-mentioned device connection method applied to the terminal device.
  • the integrated unit is realized in the form of a software function unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, all or part of the procedures in the method of the above-mentioned embodiments in the present application can be completed by instructing related hardware through a computer program.
  • the computer program can be stored in a computer-readable storage medium.
  • the computer program When executed by a processor, the steps in the above-mentioned various method embodiments can be realized.
  • the computer program includes computer program code, and the computer program code may be in the form of source code, object code, executable file or some intermediate form.
  • the computer-readable medium may at least include: any entity or device capable of carrying computer program codes to the control device/terminal device, recording medium, computer memory, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), electrical carrier signals, telecommunication signals, and software distribution media.
  • computer readable media may not be electrical carrier signals and telecommunication signals under legislation and patent practice.
  • the disclosed device/network device and method may be implemented in other ways.
  • the device/network device embodiments described above are only illustrative.
  • the division of the modules or units is only a logical function division.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephone Function (AREA)

Abstract

La présente demande est applicable au domaine technique des communications sans fil. Elle concerne un procédé et un appareil de connexion de dispositif, ainsi qu'un dispositif, un support de stockage et une puce. Le procédé consiste à : acquérir des informations d'identification d'un premier dispositif cible (31) ; envoyer un message de diffusion Bluetooth à basse consommation d'énergie qui contient les informations d'identification (32), le message de diffusion Bluetooth à basse consommation d'énergie étant utilisé pour donner pour instruction au premier dispositif cible de déclencher une connexion audio Bluetooth à basse consommation d'énergie vers un dispositif audio Bluetooth ; recevoir une demande de connexion Bluetooth à basse consommation d'énergie qui est envoyée par le premier dispositif cible (33) ; et en réponse à la demande de connexion Bluetooth à basse consommation d'énergie, établir une connexion audio Bluetooth à basse consommation d'énergie avec le premier dispositif cible (34). La présente demande permet de réduire le taux d'occurrence d'erreurs de connexion d'un dispositif audio Bluetooth à un dispositif terminal.
PCT/CN2022/139336 2022-01-14 2022-12-15 Procédé et appareil de connexion de dispositif, et dispositif, support de stockage et puce WO2023134386A1 (fr)

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