WO2021239032A1 - Procédé et appareil de connexion de protocole bluetooth, support de stockage et dispositif associé - Google Patents

Procédé et appareil de connexion de protocole bluetooth, support de stockage et dispositif associé Download PDF

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Publication number
WO2021239032A1
WO2021239032A1 PCT/CN2021/096230 CN2021096230W WO2021239032A1 WO 2021239032 A1 WO2021239032 A1 WO 2021239032A1 CN 2021096230 W CN2021096230 W CN 2021096230W WO 2021239032 A1 WO2021239032 A1 WO 2021239032A1
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Prior art keywords
bluetooth
connection
bluetooth protocol
protocol information
protocol
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PCT/CN2021/096230
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English (en)
Chinese (zh)
Inventor
刘佳
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Oppo广东移动通信有限公司
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Publication of WO2021239032A1 publication Critical patent/WO2021239032A1/fr

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    • 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
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/06—Authentication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup
    • 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

  • This application relates to the field of computer technology, and in particular to a Bluetooth protocol connection method, device, storage medium and related equipment.
  • an electronic device when an electronic device is connected with a Bluetooth device, it needs to obtain Bluetooth protocol information supported by the Bluetooth device through a complete Service Discovery Protocol (SDP) process, so as to complete the Bluetooth protocol connection with the Bluetooth device.
  • SDP Service Discovery Protocol
  • the embodiments of the present application provide a Bluetooth protocol connection method, device, storage medium, and related equipment, which saves the SDP process, can increase the protocol connection speed, and thereby increase the speed of the entire Bluetooth connection process.
  • the technical solution is as follows:
  • the embodiments of the present application provide a Bluetooth protocol connection method, which is applied to an electronic device.
  • the electronic device is used as a master device to perform a current connection with a Bluetooth device, the method includes:
  • Obtaining step Obtain the first Bluetooth protocol information supported by the Bluetooth device stored locally by the electronic device, where the first Bluetooth protocol information is that the electronic device serves as the master device and is connected to the Bluetooth device before the current round of connection Saved by query saving step;
  • Connection step completing the Bluetooth protocol connection corresponding to the first Bluetooth protocol information with the Bluetooth device based on the first Bluetooth protocol information.
  • an embodiment of the present application provides a Bluetooth protocol connection device, which is applied to an electronic device.
  • the electronic device is used as a master device to perform a current connection with a Bluetooth device, the device includes:
  • the first protocol acquisition module is configured to acquire the first Bluetooth protocol information supported by the Bluetooth device stored locally by the electronic device. The description is saved through the query saving step before this round of connection;
  • the Bluetooth protocol connection module is configured to complete the Bluetooth protocol connection corresponding to the first Bluetooth protocol information with the Bluetooth device based on the first Bluetooth protocol information.
  • an embodiment of the present application provides a Bluetooth headset.
  • the Bluetooth headset includes a detection circuit and a Bluetooth circuit.
  • the detection circuit is configured to detect a Bluetooth connection command. When the detection circuit detects a Bluetooth connection
  • the detection circuit is configured to send a Bluetooth back-connection signal to the Bluetooth circuit, and the Bluetooth circuit is configured to start a Bluetooth back-connection to the Bluetooth device after receiving the Bluetooth back-connection signal;
  • the bluetooth circuit is configured to save the first bluetooth protocol information supported by the bluetooth device queried during the first bluetooth connection back into the memory of the bluetooth headset;
  • the detection circuit When the detection circuit detects the Bluetooth connection back instruction again, the detection circuit is configured to send the Bluetooth connection back signal to the Bluetooth circuit, and the Bluetooth circuit is configured to After the Bluetooth back-connection signal, the Bluetooth back-connection to the Bluetooth device is started; the Bluetooth circuit is configured to retrieve the first Bluetooth protocol information stored in the memory during the non-first Bluetooth back-connection process, and It is configured to perform a Bluetooth protocol connection corresponding to the first Bluetooth protocol information based on the first Bluetooth protocol information.
  • an embodiment of the present application provides a computer storage medium that stores a plurality of instructions, and the instructions are suitable for being loaded by a processor and executing the above method steps.
  • an embodiment of the present application provides an electronic device, which may include a processor and a memory; wherein the memory stores a computer program, and the computer program is adapted to be loaded by the processor and execute the above method steps .
  • the first Bluetooth protocol information supported by the Bluetooth device stored locally in the electronic device is acquired, and the first Bluetooth protocol is The information is saved by the electronic device as the master device and the Bluetooth device before this round of connection, and the Bluetooth protocol connection is completed with the Bluetooth device based on the first Bluetooth protocol information.
  • the first Bluetooth protocol information is sufficient, which saves the SDP process and can increase the protocol connection speed, thereby increasing the speed of the entire Bluetooth connection process, and bringing a better user experience to the user.
  • FIG. 1 is a schematic flowchart of a Bluetooth protocol connection method provided by an embodiment of the present application
  • FIG. 2 is a schematic structural diagram of a pairing connection system provided by an embodiment of the present application.
  • FIG. 3 is a schematic flowchart of a Bluetooth protocol connection method provided by an embodiment of the present application.
  • FIG. 4 is a schematic flowchart of a security authentication process provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a first connection process between an electronic device and a Bluetooth device according to an embodiment of the present application
  • FIG. 6 is a schematic diagram of an example of a back connection between a headset and a mobile phone according to an embodiment of the present application
  • FIG. 7 is a schematic flowchart of a non-first connection between an electronic device and a Bluetooth device according to an embodiment of the present application
  • FIG. 8 is a schematic structural diagram of a Bluetooth protocol connection device provided by an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a Bluetooth protocol connection device provided by an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a Bluetooth headset provided by an embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of an electronic device provided by an embodiment of the present application.
  • plural means two or more.
  • “And/or” describes the association relationship of the associated objects, indicating that there can be three types of relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone.
  • the character “/” generally indicates that the associated objects before and after are in an "or” relationship.
  • SDP Service Discovery Protocol
  • this information is generally determined when the Bluetooth device leaves the factory and will not change significantly. Every time an electronic device connects to a Bluetooth device, it needs to do a complete SDP process to obtain Bluetooth protocol information, which is redundant, and frequent SDP connection disconnection It will consume a lot of time, which will affect the connection speed.
  • the Bluetooth protocol connection method provided by the embodiments of the present application will be described in detail below in conjunction with accompanying drawings 1 to 7.
  • the method can be realized by relying on a computer program, and can be run on a Bluetooth protocol connection device based on the von Neumann system.
  • the computer program can be integrated in the application or run as an independent tool application.
  • the Bluetooth protocol connection device in the embodiment of the present application may be an electronic device.
  • FIG. 1 is a schematic flowchart of a Bluetooth protocol connection method provided by an embodiment of this application.
  • the method of the embodiment of the present application may include the following steps:
  • Bluetooth protocol specification follows the Open System Interconnection Reference Model (OSI/RM), and defines the various layers of the Bluetooth protocol stack from low to high, including: Physical Layer, Logical Layer, L2CAP Layer, and Application Layer (APP Layer).
  • OSI/RM Open System Interconnection Reference Model
  • APP Layer Application Layer
  • Common Bluetooth protocols can include:
  • Head-Set-Profile HSP
  • HSP The device specification
  • Hands-Free Profile allows electronic devices to control calls, such as answering, hanging up, rejecting, and voice dialing.
  • the Bluetooth Media Audio Distribution Protocol (Advanced Audio Distribution Profile, A2DP) can use the chip in the headset to stack data to achieve high-definition sound, which allows the transmission of stereo audio signals.
  • the sound can reach 44.1kHz, and the average earphone can only reach 8kHz.
  • the Bluetooth device can be used.
  • Audio/Video Remote Control Profile used to send commands (such as skip forward, pause and play) from the controller (such as stereo headset) to the target device (such as a computer with Media Player) .
  • AVRCP is designed to provide a standard interface for controlling TV, Hi-Fi equipment, etc. This configuration file is used to allow a single remote control device (or other device) to control all A/V devices that users can access. It can be used in conjunction with A2DP or VDP.
  • AVRCP defines how to control the characteristics of streaming media. Including pause, stop, start playback, volume control and other types of remote control operations.
  • AVRCP defines two roles, namely the controller and the target device.
  • the controller is usually a remote control device, and the target device is a device whose characteristics can be changed.
  • the controller translates the detected user operations into A/V control signals, and then transmits them to the remote Bluetooth device.
  • the control device can be a headset that allows skipping audio tracks, while the target device is the actual player.
  • the available functions of the conventional infrared remote control can be implemented in this protocol.
  • the AVRCP protocol stipulates the application range of the AV/C digital interface command set (AV/C command set), which achieves simplified implementation and ease of operation.
  • This protocol uses the AV/C device mode and command format for control messages, which can be transmitted through the Audio/Video Control Transmission Protocol (AVCTP).
  • AVCTP Audio/Video Control Transmission Protocol
  • the SPP Bluetooth serial port is a device based on the SPP protocol (Serial Port Profile) that can create a serial port for data transmission between Bluetooth devices.
  • SPP protocol Serial Port Profile
  • one of the devices is an electronic device, and the other device is a Bluetooth device. Both devices have Bluetooth function and can complete Bluetooth protocol connection.
  • the system architecture 100 may include one or more of the electronic devices 101, 102, and 103, the Bluetooth network 104 and the Bluetooth device 105.
  • the Bluetooth network 104 is used to provide a medium for communication links between the electronic devices 101, 102, 103 and the Bluetooth device 105.
  • Bluetooth is a radio technology that supports short-distance communication (generally within 10m) of devices, and can exchange wireless information among many devices including mobile phones, PDAs, wireless headsets, notebook computers, and related peripherals.
  • Bluetooth technology can effectively simplify the communication between terminal devices, and also successfully simplify the communication between the device and the Internet, so that data transmission becomes faster and more efficient, and broadens the way for wireless communication.
  • the numbers of electronic devices, Bluetooth networks, and Bluetooth devices in FIG. 2 are merely illustrative. According to implementation needs, there can be any number of electronic devices, Bluetooth networks, and Bluetooth devices.
  • the Bluetooth device 105 may be a Bluetooth device cluster composed of multiple Bluetooth devices or multiple independent Bluetooth devices within a certain distance.
  • the user can use the electronic devices 101, 102, 103 to interact with the Bluetooth device 105 through the Bluetooth network 104 to receive or send messages, and so on.
  • the electronic devices 101, 102, 103 may be devices with Bluetooth functions, including but not limited to smart phones, tablets, portable computers, desktop computers, Bluetooth headsets, Bluetooth car, Bluetooth MP3, Bluetooth flash drives, Bluetooth adapters, Bluetooth gateways, Bluetooth CF card and so on.
  • the bluetooth device is also a device with bluetooth function, which may include but not limited to bluetooth headset, bluetooth car, bluetooth MP3, bluetooth flash disk, bluetooth adapter, bluetooth gateway, bluetooth CF card and so on.
  • the Bluetooth headset may be a true wireless stereo (TWS) headset.
  • the electronic device has acquired and saved the first Bluetooth protocol information supported by the Bluetooth device, such as protocol Name, protocol version, protocol function, etc. Therefore, when the electronic device is connected with the Bluetooth device for this round (such as the second time, the third time, etc.), the Bluetooth device supported by the Bluetooth device can be directly read from the local cache.
  • the first Bluetooth protocol information does not need to obtain the first Bluetooth protocol information supported by the Bluetooth device.
  • the electronic device is a mobile phone and the Bluetooth device is a Bluetooth headset
  • the headset is generally connected to the headset through the mobile phone as the main device. Therefore, during this connection process, the mobile phone can Acquire and save the Bluetooth protocol information supported by the headset.
  • the mobile phone reconnects to the headset (such as the second time, the third time, etc.), it can connect back to the headset based on the Bluetooth protocol information saved for the first time.
  • the connection back refers to the non-first connection between the electronic device as the master device and the Bluetooth device.
  • the mobile phone is the main device, the second connection or the third connection with the headset, and for example, after the headset has established a Bluetooth connection with the mobile phone, the headset is used as the main device to establish a Bluetooth connection with the mobile phone, which is called back connection.
  • the electronic device is a Bluetooth headset
  • the Bluetooth device is a mobile phone
  • the headset when the headset is connected to the mobile phone for the first time, the headset is generally connected to the headset through the mobile phone as the main device. Therefore, the headset cannot obtain the Bluetooth protocol information of the mobile phone during the first connection.
  • the headset when the headset is connected to the mobile phone (such as the second time), the headset can be used as the main device to obtain and save the Bluetooth protocol information supported by the mobile phone. Therefore, when the headset is connected to the mobile phone the next time (such as the third and fourth time), you can Connect back to the mobile phone based on the Bluetooth protocol information saved for the second time.
  • the back-connection refers to the non-first connection between the electronic device as the main device and the Bluetooth device, that is, for example, the second connection or the third connection between the headset and the mobile phone, and the headset has already established a Bluetooth connection with the mobile phone. Later, the headset establishes a Bluetooth connection with the mobile phone as the main device, which is called back connection.
  • the Bluetooth protocol information supported by the mobile phone can be obtained and saved locally when the headset is connected to the mobile phone for the first time, which is also suitable for this application and belongs to the protection of this application. Scope.
  • connection step completing a Bluetooth protocol connection corresponding to the first Bluetooth protocol information with the Bluetooth device based on the first Bluetooth protocol information.
  • the electronic device obtains the locally supported second Bluetooth protocol information, configures the second Bluetooth protocol information and the first Bluetooth protocol information, requests the Bluetooth device for protocol connection, and after the Bluetooth device responds, completes the protocol connection .
  • the second Bluetooth protocol information and the first Bluetooth protocol information correspond to the same type of Bluetooth protocol, for example, both are HSP protocols or both are AVRCP protocols, and so on.
  • the Bluetooth protocol corresponding to the first Bluetooth protocol information is any one of one or more types of Bluetooth protocols supported by both the electronic device and the Bluetooth device.
  • the query saving step is executed based on each Bluetooth protocol type in turn to save all the first Bluetooth protocol information corresponding to the Bluetooth protocol types.
  • the query saving step is executed for one round when the electronic device establishes a Bluetooth connection with the Bluetooth device as the master device for the first time; or, the query saving step is preset for each connection between the electronic device and the Bluetooth device. Perform one round afterwards.
  • the query saving step may include: establishing an SDP connection with a Bluetooth device through an asynchronous connection-oriented link; querying the first Bluetooth protocol information supported by the Bluetooth device through the SDP connection, and saving the first Bluetooth protocol information To local; disconnect the SDP connection.
  • the configuration and connection can be performed in sequence according to the above method.
  • the electronic device and the Bluetooth All devices with the same type of Bluetooth protocol are connected.
  • the first Bluetooth protocol information supported by the Bluetooth device stored locally in the electronic device is acquired, and the first Bluetooth protocol is The information is saved by the electronic device as the master device and the Bluetooth device before this round of connection, and the Bluetooth protocol connection is completed with the Bluetooth device based on the first Bluetooth protocol information.
  • the first Bluetooth protocol information is sufficient, which saves the SDP process and can increase the protocol connection speed, thereby increasing the speed of the entire Bluetooth connection process, and bringing a better user experience to the user.
  • FIG. 3 is a schematic flowchart of a Bluetooth protocol connection method provided by an embodiment of this application.
  • the Bluetooth protocol connection method may include the following steps:
  • the Bluetooth protocol information can be inquired and saved in the above three cases, and the purpose of the preset round is In order to ensure that the Bluetooth protocol of the Bluetooth device is updated when the Bluetooth protocol is changed.
  • the first round of connection can be understood as the scenario where the electronic device is a mobile phone, the Bluetooth device is a headset, and the electronic device is used as the main device to connect back to the headset, that is, the electronic device can obtain the Bluetooth protocol information of the Bluetooth device when it is connected to the Bluetooth device for the first round. And save.
  • Non-first-round connection can be understood as the electronic device is a headset, and the Bluetooth device is a mobile phone.
  • the Bluetooth device is the main device to initiate the connection
  • the electronic device is the main device to initiate the back connection. Only then can the Bluetooth protocol information of the Bluetooth device be obtained and saved locally. Then any round of connection after the non-first round of connection (such as this round of connection) can directly perform the Bluetooth protocol connection based on the Bluetooth protocol information queried in the non-first round of connection.
  • Performing a round after each connection preset round can be understood as a periodic query (for example, performing a round of query and saving after every 5 rounds of connection), so as to update the Bluetooth protocol saved in the previous round of query.
  • This round of connection is any round of connection after the connection is saved in the most recent query, and the Bluetooth protocol connection can be directly performed based on the Bluetooth protocol information queried in the most recent round.
  • the electronic device When the electronic device is used as the master device to connect with the Bluetooth device before this round of connection, it is first necessary to create an asynchronous connection-oriented ACL link between the two. After the ACL link is created, the link layer data is authenticated and encrypted to ensure the security of data transmission. The electronic device obtains the Bluetooth protocol information supported by the Bluetooth device from the Bluetooth device through the link.
  • the electronic device (master, the device that initiates the connection) will page the Bluetooth device (slave, the device that receives the connection), the master will page the slave in a frequency hopping manner, and the slave will scan at regular intervals (page scan) External page, when scanning to an external page, it will respond to the page, so that a link connection is established between the electronic device and the Bluetooth device, that is, the connection of the ACL link.
  • the maximum timeout time of a page is 40.9 seconds, and the minimum is 0.625ms.
  • the Bluetooth device enables the page scan mode to respond to connection requests from other Bluetooth devices.
  • Page scan is a state. Only when the Bluetooth device is in the page scan state can the electronic device be successfully connected.
  • ACL link is a logical link for connection-oriented Bluetooth asynchronous transmission. Send data packets directionally through this link, which supports both symmetrical and asymmetrical connections (that is, one-to-one or one-to-many).
  • the master device (electronic device) is responsible for controlling the link bandwidth and determining how much bandwidth each slave device (Bluetooth device) can occupy and the symmetry of the connection. The slave device can only transmit data when it is selected.
  • the ACL link also supports receiving broadcast messages sent by the master device to all slave devices. In addition, the ACL link is mainly used for the transmission of packet data.
  • Two-way authentication adopts challenge-response (challenge-response) method.
  • the electronic device A is the responder
  • the Bluetooth device B is the requester.
  • the A device as the responding party generates a 128-bit random number AU_RANDA and transmits it to the B device in plain text.
  • the A and B devices both use the E1 algorithm to generate 32-bit SRESA and SRESB by encrypting the AU_RANDA, Kab, and BD_ANDRB obtained separately.
  • B device transmits the result SRESB to A device,
  • a device compares SRESA and SRESB, if they are equal, the authentication is passed this time, otherwise the authentication is not passed.
  • the roles of the A device and the B device are swapped, that is, the A device is the requester and the B device is the responder, and the same method is used for authentication. After both parties have passed the authentication, it is confirmed that the safety authentication is passed.
  • S202 Establish an SDP connection with the Bluetooth device through the asynchronous connection-oriented link
  • SDP is the core protocol in the Bluetooth protocol system, an important part of the Bluetooth system, and the basis of all user modes.
  • the Bluetooth system it is necessary to obtain device information, service information, and service characteristics through a service discovery protocol to establish mutual connections on this basis. Through this protocol, the application can discover which services are available and what are the characteristics of the services.
  • the SDP connection between the electronic device and the Bluetooth device is established through the ACL link.
  • S203 Query the first Bluetooth protocol information supported by the Bluetooth device through the SDP connection and the Bluetooth protocol type, and save the first Bluetooth protocol information locally, and disconnect the SDP connection;
  • the second Bluetooth protocol is locally supported, and the second Bluetooth protocol corresponds to Bluetooth information, including the Bluetooth protocol type.
  • a round of query and save is performed; or, after each preset round of connection between the electronic device and the Bluetooth device, a round of query and save is performed.
  • the query and save may be understood as the electronic device inquires the Bluetooth device for the first Bluetooth protocol information supported by the Bluetooth device and saves it in the memory of the electronic device.
  • the Bluetooth protocol type includes multiple, such as HSP, HFP, AVRCP, A2DP, etc.
  • the same Bluetooth protocol supported by the Bluetooth device is queried through the SDP connection and one of the multiple Bluetooth protocols Information, if it exists, save the Bluetooth protocol information locally and disconnect the SDP connection; then establish an SDP connection with the Bluetooth device through the SDP and the next one of the multiple Bluetooth protocol types
  • the Bluetooth protocol type queries the Bluetooth protocol information supported by the Bluetooth device, saves the Bluetooth protocol information locally, and disconnects the SDP connection; in the same way, the other types of Bluetooth protocols are inquired and saved in sequence.
  • the search of the Bluetooth protocol can be a random search according to any one of the multiple Bluetooth protocol types, or can be a search for each Bluetooth protocol type in sequence according to default rules (such as priority order).
  • the electronic device first requests HFP protocol information query from the Bluetooth device through the SDP connection, and then receives the Bluetooth device After replying to the HFP protocol information, record the HFP protocol related information, disconnect the SDP connection, and perform the HFP protocol connection. After the protocol connection is completed, establish the SDP connection again, and perform the A2DP protocol information query and connection in the same way as above In this way, it completes the inquiry of multiple Bluetooth protocol types contained in the electronic device.
  • the process of Bluetooth protocol connection can be understood as: after the electronic device configures the second Bluetooth protocol information and the first Bluetooth protocol information, it requests the Bluetooth device for protocol connection, and after the Bluetooth device responds, completes the protocol connection.
  • the connection history of the electronic device and these multiple Bluetooth devices is searched in the cache to determine the current needs Which Bluetooth device to connect to.
  • FIG. 6 shows the TWS Bluetooth headset and mobile phone.
  • TWS earphones are equipped with a charging box + earphones on the market.
  • the TWS earphone as an electronic device main device
  • Bluetooth device A is Electronic equipment
  • Bluetooth device B is a Bluetooth device.
  • the ACL link creation and authentication process is the same as the ACL link creation and authentication process for the first connection described above, and will not be repeated here.
  • S205 Acquire first Bluetooth protocol information supported by the Bluetooth device and stored locally by the electronic device;
  • the first Bluetooth protocol information supported by the Bluetooth device such as the protocol version, the functions supported by the protocol, etc., are generally determined when the device leaves the factory and will not change significantly. Therefore, the electronic device directly reads the first connection recorded in the cache The first Bluetooth protocol information is sufficient.
  • S206 Acquire second Bluetooth protocol information supported by the electronic device, where the second Bluetooth protocol information and the first Bluetooth protocol information correspond to the same type of Bluetooth protocol;
  • the second Bluetooth protocol information and the first Bluetooth protocol information supported by the electronic device it is necessary to configure the second Bluetooth protocol information and the first Bluetooth protocol information supported by the electronic device. Therefore, it is also necessary to read the second Bluetooth protocol information of the electronic device, such as the protocol name. , Protocol version, protocol function, etc., the second Bluetooth protocol information and the first Bluetooth protocol information correspond to the same type of Bluetooth protocol.
  • S207 Based on the first Bluetooth protocol information and the second Bluetooth protocol information, complete a Bluetooth protocol connection corresponding to the first Bluetooth protocol information with the Bluetooth device.
  • Bluetooth protocol it is only necessary to obtain the Bluetooth device support through the SDP process when the electronic device is used as the main device and the Bluetooth device is connected before this round of connection (such as the first time, the second time, and the preset round every interval).
  • Bluetooth protocol and save it.
  • the Bluetooth protocol information corresponding to each type of Bluetooth protocol is obtained in the same way and saved.
  • the subsequent connection process only the Bluetooth protocol information needs to be read locally. Yes, the SDP process is saved, the connection process is simple and convenient, and the time consumed by frequent SDP connection disconnections is saved, which can increase the protocol connection speed, thereby increasing the speed of the entire Bluetooth connection process, and bringing a better user experience to the user.
  • connection speed of the headset to the mobile phone is generally about 2.5s, and the connection speed of the mobile phone and the Bluetooth device using this solution will increase by at least 300-500ms.
  • the electronic device and the Bluetooth device are in a strong interference environment, it may take multiple interactions to obtain the Bluetooth protocol information of the Bluetooth device through the SDP connection each time. Therefore, through the implementation of this solution, in the strong interference environment, The effect of increasing the connection speed is more obvious.
  • FIG. 8 shows a schematic structural diagram of a Bluetooth protocol connection device provided by an exemplary embodiment of the present application.
  • the Bluetooth protocol connection device can be implemented as all or a part of the electronic device through software, hardware or a combination of the two.
  • the device 1 is applied to an electronic device.
  • the electronic device When the electronic device is used as a master device to connect with a Bluetooth device in this round, it includes a first protocol acquisition module 11 and a Bluetooth protocol connection module 12.
  • the first protocol acquisition module 11 is configured to acquire the first Bluetooth protocol information supported by the Bluetooth device stored locally by the electronic device, and the first Bluetooth protocol information indicates that the electronic device acts as a master device and is connected to the Bluetooth device. The said current round of connection was saved through the query saving step;
  • the Bluetooth protocol connection module 12 is configured to complete the Bluetooth protocol connection corresponding to the first Bluetooth protocol information with the Bluetooth device based on the first Bluetooth protocol information.
  • the device further includes:
  • the link creation module 13 is used to initiate a paging to the Bluetooth device to create an asynchronous connection-oriented link
  • the link authentication module 14 is configured to authenticate link layer data through the asynchronous connection-oriented link.
  • the Bluetooth protocol connection module 11 is specifically used for:
  • Second Bluetooth protocol information supported by the electronic device, where the second Bluetooth protocol information and the first Bluetooth protocol information correspond to the same type of Bluetooth protocol;
  • the Bluetooth protocol corresponding to the first Bluetooth protocol information is any one of one or more types of Bluetooth protocols supported by both the electronic device and the Bluetooth device;
  • the Bluetooth protocol includes multiple types
  • based on each type of Bluetooth protocol in turn, trigger the first protocol acquisition module 11 and the Bluetooth protocol connection module 12 to complete the communication between the electronic device and the Bluetooth device All Bluetooth protocol connections.
  • the current round of connection includes the first round of connection, non-first round of connection, or any round of connection with a preset time interval
  • the Bluetooth device is the Bluetooth device whose connection time with at least one Bluetooth device is closest to the current time. equipment.
  • the query and save step is performed for one round when the electronic device establishes a Bluetooth connection with the Bluetooth device as a master device for the first time; or,
  • the query saving step is executed one round after each preset round of connection between the electronic device and the Bluetooth device.
  • the device further includes:
  • the link creation module 15 is used to initiate a paging to the Bluetooth device to create an asynchronous connection-oriented link when the electronic device is used as the master device to connect with the Bluetooth device before this round of connection.
  • the link authenticates the link layer data
  • the SDP connection module 16 is configured to establish an SDP connection with the Bluetooth device through the asynchronous connection-oriented link;
  • the Bluetooth protocol storage module 17 is configured to query the first Bluetooth protocol information supported by the Bluetooth device through the SDP connection, and save the first Bluetooth protocol information locally;
  • the SDP disconnect module 18 is used to disconnect the SDP connection.
  • the query and save step may include: establishing an SDP connection with a Bluetooth device through an asynchronous connection-oriented link; querying the first Bluetooth protocol information supported by the Bluetooth device through the SDP connection, and connecting the first Bluetooth device The protocol information is saved locally; the SDP connection is disconnected.
  • the query saving step can be executed by the SDP connection module 16, the Bluetooth protocol saving module 17, and the SDP disconnect module 18.
  • the Bluetooth protocol saving module 17 is specifically used for:
  • the Bluetooth protocol saving module 17 is also used for:
  • the query saving step is executed based on each Bluetooth protocol type in turn to save all the first Bluetooth protocol information corresponding to the Bluetooth protocol types.
  • the Bluetooth protocol connection device provided in the above embodiment executes the Bluetooth protocol connection method
  • only the division of the above functional modules is used as an example.
  • the above functions can be assigned to different functions according to needs.
  • Module completion means dividing the internal structure of the device into different functional modules to complete all or part of the functions described above.
  • the Bluetooth protocol connection device provided in the foregoing embodiment and the Bluetooth protocol connection method embodiment belong to the same concept, and the implementation process is detailed in the method embodiment, which will not be repeated here.
  • Bluetooth protocol it is only necessary to obtain the Bluetooth device support through the SDP process when the electronic device is used as the main device and the Bluetooth device is connected before this round of connection (such as the first time, the second time, and the preset round every interval).
  • Bluetooth protocol and save it.
  • the Bluetooth protocol information corresponding to each type of Bluetooth protocol is obtained in the same way and saved.
  • the subsequent connection process only the Bluetooth protocol information needs to be read locally. Yes, the SDP process is saved, the connection process is simple and convenient, and the time consumed by frequent SDP connection disconnections is saved, which can increase the protocol connection speed, thereby increasing the speed of the entire Bluetooth connection process, and bringing a better user experience to the user.
  • FIG. 10 shows a schematic structural diagram of a Bluetooth headset provided by an exemplary embodiment of the present application.
  • the Bluetooth headset 2 includes a detection circuit 21 and a Bluetooth circuit 22.
  • the detection circuit 21 is configured to detect a Bluetooth back-connect command.
  • the detection circuit 21 is configured to The circuit 22 sends out a Bluetooth back-connection signal, and the Bluetooth circuit 22 is configured to initiate a Bluetooth back-connection to the Bluetooth device after receiving the Bluetooth back-connection signal;
  • the Bluetooth circuit 22 is configured to retrieve the information queried during the first Bluetooth back-connection process
  • the first Bluetooth protocol information supported by the Bluetooth device is stored in the memory of the Bluetooth headset;
  • the detection circuit 21 When the detection circuit 21 detects the Bluetooth back-connection command again, the detection circuit 21 is configured to send a Bluetooth back-connection signal to the Bluetooth circuit 22, and the Bluetooth circuit 22 is configured to initiate communication to the Bluetooth device after receiving the Bluetooth back-connection signal.
  • Bluetooth back-connection; Bluetooth circuit 22 is configured to retrieve the first Bluetooth protocol information stored in the memory during the non-first Bluetooth back-connection process, and is configured to correspond to the first Bluetooth protocol information based on the first Bluetooth protocol information Bluetooth protocol connection.
  • the Bluetooth circuit 22 is configured to retrieve the first Bluetooth protocol information stored in the memory during the non-first Bluetooth connection back process, and is configured to perform the corresponding first Bluetooth protocol information based on the first Bluetooth protocol information
  • the Bluetooth protocol connection is specifically: the Bluetooth circuit 22 is configured to retrieve the first Bluetooth protocol information stored in the memory during the non-first Bluetooth connection process, and is also configured to retrieve the second Bluetooth headset stored locally.
  • Bluetooth protocol information and is also configured to perform a Bluetooth protocol connection corresponding to the first Bluetooth protocol information based on the stored first Bluetooth protocol information and the second Bluetooth protocol of the Bluetooth headset; the second Bluetooth protocol information corresponds to the first Bluetooth protocol information The same type of Bluetooth protocol.
  • the Bluetooth protocol corresponding to the stored first Bluetooth protocol information is any one of one or more types of Bluetooth protocols supported by both the Bluetooth device and the Bluetooth headset;
  • the detection circuit 21 and the Bluetooth circuit 22 are configured to be based on the first Bluetooth protocol information and the second Bluetooth protocol corresponding to each type of Bluetooth protocol in the process of non-first Bluetooth connection.
  • the information is connected to the Bluetooth protocol to complete all Bluetooth protocol connections between the Bluetooth headset and the Bluetooth device.
  • the detection circuit 21 when the detection circuit 21 detects the Bluetooth connection back instruction again, the detection circuit 21 is configured to first send a paging signal to the Bluetooth circuit 22, and the Bluetooth circuit 22 is configured to send a paging signal to the Bluetooth circuit 22 after receiving the paging signal.
  • the Bluetooth device initiates paging to create an asynchronous connection-oriented link and authenticates link layer data through the asynchronous connection-oriented link.
  • the detection circuit 21 when the detection circuit 21 detects the first Bluetooth connection instruction, or when the detection circuit 21 detects the Bluetooth connection instruction after a preset round, the detection circuit 21 is configured to send the first Bluetooth connection instruction to the Bluetooth circuit 22 Bluetooth loopback signal.
  • the Bluetooth circuit 22 After receiving the first Bluetooth loopback signal, the Bluetooth circuit 22 initiates the Bluetooth connection with the Bluetooth device for the first time, or initiates the Bluetooth connection after each preset round of connection with the Bluetooth device, and is configured to communicate with the Bluetooth device.
  • the Bluetooth device obtains the first Bluetooth protocol information supported by the Bluetooth device and saves it in the memory of the Bluetooth headset.
  • the detection circuit 21 when the detection circuit 21 detects the first Bluetooth connection back instruction, or when the detection circuit 21 detects the Bluetooth connection back instruction after a preset round of connection, the detection circuit 21 is configured to first send to the Bluetooth circuit 22 Paging signal. After receiving the paging signal, the Bluetooth circuit 22 is configured to initiate a paging to the Bluetooth device to create an asynchronous connection-oriented link and authenticate the link layer data through the asynchronous connection-oriented link; During the Bluetooth connection of the Bluetooth device, or start the Bluetooth connection after each preset round of connection with the Bluetooth device, it is configured to obtain the first Bluetooth protocol supported by the Bluetooth device from the Bluetooth device and save it in the memory of the Bluetooth headset, Specifically:
  • the Bluetooth circuit 22 is configured to establish an SDP connection with a Bluetooth device through an asynchronous connection-oriented link, query the Bluetooth device for the first Bluetooth protocol information supported by the Bluetooth device through the SDP connection, and save the first Bluetooth protocol information to In the memory of the Bluetooth headset, disconnect the SDP connection.
  • the detection circuit 21 and the Bluetooth circuit 22 are configured to follow the first Bluetooth connection instruction or the Bluetooth connection instruction after a preset round of connection, based on each Bluetooth protocol in turn.
  • Type obtain the first Bluetooth protocol supported by the Bluetooth device from the Bluetooth device, so as to save the first Bluetooth protocol information corresponding to all the Bluetooth protocol types in the memory of the Bluetooth headset.
  • the Bluetooth device support through the SDP process when the Bluetooth headset is used as the main device and the Bluetooth device is connected before this round of connection (such as the first time, the second time, and the preset rounds every interval).
  • the Bluetooth protocol information corresponding to each type of Bluetooth protocol is obtained and saved in the same way.
  • the subsequent connection process it only needs to be read from the memory of the Bluetooth headset.
  • the connection process is simple and convenient, and saves the time consumed by frequent SDP connection and disconnection, which can increase the protocol connection speed, thereby increasing the speed of the entire Bluetooth connection process, and bringing more to users. Good experience.
  • the embodiment of the present application also provides a computer storage medium.
  • the computer storage medium may store multiple instructions.
  • the instructions are suitable for being loaded by a processor and executing the method steps of the above-mentioned embodiments shown in FIG. 1 to FIG. 7, and the specific execution process is Reference may be made to the specific description of the embodiment shown in FIG. 1 to FIG. 7, which will not be repeated here.
  • the electronic device 1000 may include: at least one processor 1001, at least one network interface 1004, a user interface 1003, a memory 1005, and at least one communication bus 1002.
  • the communication bus 1002 is used to implement connection and communication between these components.
  • the user interface 1003 may include a display screen (Display) and a camera (Camera), and the optional user interface 1003 may also include a standard wired interface and a wireless interface.
  • Display display screen
  • Camera Camera
  • the optional user interface 1003 may also include a standard wired interface and a wireless interface.
  • the network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a WI-FI interface).
  • the processor 1001 may include one or more processing cores.
  • the processor 1001 uses various excuses and lines to connect various parts of the entire electronic device 1000, and executes by running or executing instructions, programs, code sets, or instruction sets stored in the memory 1005, and calling data stored in the memory 1005.
  • Various functions and processing data of the electronic device 1000 may use at least one of digital signal processing (Digital Signal Processing, DSP), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), and Programmable Logic Array (Programmable Logic Array, PLA).
  • DSP Digital Signal Processing
  • FPGA Field-Programmable Gate Array
  • PLA Programmable Logic Array
  • the processor 1001 may be integrated with one or a combination of a central processing unit (CPU), a graphics processing unit (GPU), a modem, and the like.
  • the CPU mainly processes the operating system, user interface, and application programs; the GPU is used for rendering and drawing the content that the display needs to display; the modem is used for processing wireless communication. It is understandable that the above-mentioned modem may not be integrated into the processor 1001, but may be implemented by a chip alone.
  • the memory 1005 may include random access memory (Random Access Memory, RAM), and may also include read-only memory (Read-Only Memory).
  • the memory 1005 includes a non-transitory computer-readable storage medium.
  • the memory 1005 may be used to store instructions, programs, codes, code sets or instruction sets.
  • the memory 1005 may include a storage program area and a storage data area, where the storage program area may store instructions for implementing the operating system and instructions for at least one function (such as touch function, sound playback function, image playback function, etc.), Instructions used to implement the foregoing method embodiments, etc.; the storage data area can store the data involved in the foregoing method embodiments, etc.
  • the memory 1005 may also be at least one storage device located far away from the foregoing processor 1001.
  • the memory 1005 as a computer storage medium may include an operating system, a network communication module, a user interface module, and a Bluetooth protocol connection application program.
  • the user interface 1003 is mainly used to provide an input interface for the user to obtain data input by the user; and the processor 1001 can be used to call the Bluetooth protocol connection application program stored in the memory 1005, When the electronic device is used as the main device to connect with the Bluetooth device this round, and specifically perform the following operations:
  • Obtaining step Obtain the first Bluetooth protocol information supported by the Bluetooth device stored locally by the electronic device, where the first Bluetooth protocol information is stored by the electronic device as the main device and the Bluetooth device before the current round of connection with the Bluetooth device through the query and save step;
  • Connection step completing the Bluetooth protocol connection corresponding to the first Bluetooth protocol information with the Bluetooth device based on the first Bluetooth protocol information.
  • the processor 1001 further performs the following operations before performing the obtaining step:
  • Paging is initiated to the Bluetooth device to create an asynchronous connection-oriented link; the link layer data is authenticated through the asynchronous connection-oriented link.
  • the processor 1001 specifically performs the following operations when performing the connection step:
  • the second Bluetooth protocol information and the first Bluetooth protocol information correspond to the same type of Bluetooth protocol; based on the first Bluetooth protocol information and the second Bluetooth protocol information, complete the first Bluetooth with the Bluetooth device The Bluetooth protocol connection corresponding to the protocol information.
  • the Bluetooth protocol corresponding to the first Bluetooth protocol information is any one of one or more types of Bluetooth protocols supported by both the electronic device and the Bluetooth device;
  • the processor 1001 sequentially executes the acquiring step and the connecting step based on each type of Bluetooth protocol to complete all Bluetooth protocol connections between the electronic device and the Bluetooth device.
  • the query and save step is executed for one round when the electronic device is the master device to establish a Bluetooth connection with the Bluetooth device for the first time; or,
  • the query and save step is executed after each preset round of connection between the electronic device and the Bluetooth device.
  • the processor 1001 when the processor 1001 executes the connection between the electronic device as the master device and the Bluetooth device before the current round of connection, it also performs the following operations: initiate a paging to the Bluetooth device to create an asynchronous connection-oriented link, through asynchronous The connection-oriented link authenticates the link layer data; the SDP connection with the Bluetooth device is established through the asynchronous connection-oriented link; the first Bluetooth protocol information supported by the Bluetooth device is queried through the SDP connection, and the first Bluetooth protocol information Save to local; disconnect SDP connection.
  • the processor 1001 when the processor 1001 queries the first Bluetooth protocol information supported by the Bluetooth device through the SDP connection, and saves the first Bluetooth protocol information locally, it specifically performs the following operations: Obtain the second Bluetooth protocol supported by the electronic device For the Bluetooth protocol type in the information, the first Bluetooth protocol information supported by the Bluetooth device is queried through the SDP connection and the Bluetooth protocol type, and the first Bluetooth protocol information is stored locally.
  • the processor 1001 further performs the following operation: when there are multiple Bluetooth protocol types, it executes the query saving step based on each Bluetooth protocol type in turn to save the first Bluetooth protocol information corresponding to all Bluetooth protocol types.
  • Bluetooth protocol it is only necessary to obtain the Bluetooth device support through the SDP process when the electronic device is used as the main device and the Bluetooth device is connected before this round of connection (such as the first time, the second time, and the preset round every interval).
  • Bluetooth protocol and save it.
  • the Bluetooth protocol information corresponding to each type of Bluetooth protocol is obtained in the same way and saved.
  • the subsequent connection process only the Bluetooth protocol information needs to be read locally. Yes, the SDP process is saved, the connection process is simple and convenient, and the time consumed by frequent SDP connection disconnections is saved, which can increase the protocol connection speed, thereby increasing the speed of the entire Bluetooth connection process, and bringing a better user experience to the user.
  • the program can be stored in a computer readable storage medium. During execution, it may include the processes of the above-mentioned method embodiments.
  • the storage medium can be a magnetic disk, an optical disc, a read-only storage memory or a random storage memory, etc.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephone Function (AREA)

Abstract

L'invention concerne un procédé et un appareil de connexion de protocole Bluetooth, ainsi qu'un support de stockage et un dispositif associé. Lorsqu'un dispositif électronique est connecté en tant que dispositif maître à un dispositif Bluetooth dans un cycle actuel, le procédé comprend : une étape d'obtention consistant à obtenir des premières informations de protocole Bluetooth qui sont stockées localement dans le dispositif électronique et prises en charge par le dispositif Bluetooth, les premières informations de protocole Bluetooth étant stockées au moyen d'une étape d'interrogation et de stockage par le dispositif électronique avant la connexion en tant que dispositif maître au dispositif Bluetooth dans le cycle actuel (S101) ; et une étape de connexion consistant à effectuer une connexion de protocole Bluetooth correspondant aux premières informations de protocole Bluetooth avec le dispositif Bluetooth d'après les premières informations de protocole Bluetooth (S102). Par conséquent, une procédure SDP est omise, et la vitesse d'une connexion de protocole peut être augmentée, ce qui permet d'augmenter la vitesse de l'ensemble du procédé de connexion Bluetooth.
PCT/CN2021/096230 2020-05-29 2021-05-27 Procédé et appareil de connexion de protocole bluetooth, support de stockage et dispositif associé WO2021239032A1 (fr)

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