WO2022242340A1 - Methods and apparatus for broadcasting and receiving bluetooth data packet, terminal, and storage medium - Google Patents

Abstract

The embodiments of the present application disclose methods and apparatus for broadcasting and receiving a Bluetooth data packet, a terminal, and a storage medium, and relate to the technical field of wireless communication. In the present application, a first wireless terminal can broadcast an auxiliary data packet to the surroundings, the auxiliary data packet being provided with a broadcast period and a transceiving frequency point; the terminal broadcasts a Bluetooth data packet on the transceiving frequency point on the basis of the broadcast period; and after receiving a first message used for indicating that a second wireless terminal has been synchronized to the broadcast period of the Bluetooth data packet and when a first preset condition is met, the terminal stops broadcasting the auxiliary data packet. Since the first wireless terminal can receive a feedback message, confirm, according to the feedback message, whether Bluetooth broadcasting has been synchronized, and stop broadcasting the auxiliary data packet when Bluetooth broadcasting has been synchronized, the energy consumption of the wireless terminal is thus reduced, and the occupation of communication resources is also reduced.

Description

Method, device, terminal and storage medium for broadcasting and receiving bluetooth data packets

This application claims the priority of the Chinese patent application with the application number 202110560271.2 and the invention title "Method, device, terminal and storage medium for broadcasting and receiving Bluetooth data packets" submitted on May 21, 2021, the entire content of which is incorporated by reference incorporated in this application.

technical field

The embodiments of the present application relate to the technical field of wireless communication, and in particular to a method, device, terminal and storage medium for broadcasting and receiving Bluetooth data packets.

Background technique

With the iteration of the Bluetooth (BT) technical standard, the Bluetooth protocol specification version 5.2 (Bluetooth Core Specification v5.2) can support the broadcasting of Bluetooth devices to multiple other Bluetooth devices with relatively low power consumption.

In the Bluetooth protocol specification 5.2, a broadcast isochronous stream (Broadcast Isochronous Stream, BIS) technology is announced. The BIS is used to broadcast one or more simultaneous data streams to all Bluetooth devices within the covered range. For the scanning device (scanning device) receiving the BIS broadcast, it can receive the first offset information sent by any frequency point in the Bluetooth 37 frequency point to the Bluetooth 39 frequency point. The scanning device obtains a receiving window for receiving AUX (Auxiliary, assistance) data packets according to the first offset information and receives the AUX data packets. The scanning device decodes the AUX data packet to obtain the second offset information, obtains a receiving window for receiving the periodic (period) data packet and receives the periodic data packet according to the second offset information. The scanning device decodes the periodic data packet to obtain the broadcast period and frequency of the BIS, and synchronizes with the BIS.

Contents of the invention

Embodiments of the present application provide a method, device, terminal and storage medium for broadcasting and receiving Bluetooth data packets. Described technical scheme is as follows:

According to one aspect of the present application, a method for broadcasting a Bluetooth data packet is provided, the method is performed by a first wireless terminal, and the method includes:

Broadcasting an auxiliary data packet, the auxiliary data packet is used to provide a broadcast period and a sending and receiving frequency point;

Based on the broadcast period, periodically broadcast Bluetooth data packets on the transceiver frequency point;

receiving a first message from a second wireless terminal indicating that the second wireless terminal is synchronized to the broadcast cycle; and

Stop broadcasting the auxiliary data packet when the first preset condition is met.

According to another aspect of the present application, a method for receiving a Bluetooth data packet is provided, the method is performed by a second wireless terminal, and the method includes:

receiving an auxiliary data packet from the first wireless terminal, where the auxiliary data packet is used to provide a broadcast period and a transceiving frequency point;

Determine a receiving window based on the broadcast period and the transceiver frequency;

synchronizing with the broadcast period based on the receive window;

periodically receiving Bluetooth data packets from the first wireless terminal in response to the second wireless terminal having synchronized with the broadcast cycle; and

sending a first message to the first wireless terminal, where the first message is used to indicate that the second wireless terminal has been synchronized to the broadcast cycle.

According to another aspect of the present application, a device for broadcasting Bluetooth data packets is provided, the device comprising:

The first broadcast module is used to broadcast an auxiliary data packet, and the auxiliary data packet is used to provide a broadcast period and a frequency point for sending and receiving;

A second broadcast module, configured to periodically broadcast Bluetooth data packets on the transceiver frequency point based on the broadcast cycle;

A first receiving module, configured to receive a first message from a second wireless terminal, where the first message is used to indicate that the second wireless terminal has been synchronized to the broadcast period;

The broadcast stop module is configured to stop broadcasting the auxiliary data packet when the first preset condition is met.

According to another aspect of the present application, a device for receiving Bluetooth data packets is provided, the device comprising:

The second receiving module is configured to receive an auxiliary data packet from the first wireless terminal, and the auxiliary data packet is used to provide a broadcast cycle and a transceiver frequency point;

A window determination module, configured to determine a receiving window based on the broadcast period and the transceiver frequency;

A cycle synchronization module, configured to synchronize with the broadcast cycle based on the receiving window;

A third receiving module, configured to periodically receive Bluetooth data packets in response to the second wireless terminal being synchronized with the broadcast cycle;

A first sending module, configured to send a first message to the first wireless terminal, where the first message is used to indicate that the second wireless terminal has been synchronized to the broadcast period.

According to another aspect of the present application, a wireless terminal is provided, the wireless terminal includes a processor and a memory, and program instructions stored in the memory, the program instructions are loaded and executed by the processor to A method for broadcasting a Bluetooth data packet as provided in various aspects of the present application is implemented.

According to another aspect of the present application, a wireless terminal is provided, the wireless terminal includes a processor and a memory, and program instructions stored in the memory, the program instructions are loaded and executed by the processor to Implement the method for receiving Bluetooth data packets as provided by various aspects of the present application.

According to another aspect of the present application, a computer-readable storage medium is provided, and program instructions are stored in the storage medium, and the program instructions are loaded and executed by a processor to implement the broadcast Bluetooth as provided by various aspects of the present application. Packet method.

According to another aspect of the present application, a computer-readable storage medium is provided, in which program instructions are stored, and the instructions are loaded and executed by a processor to realize receiving Bluetooth data as provided by various aspects of the present application. method of the package.

According to one aspect of the present application, there is provided a computer program product comprising computer instructions stored in a computer readable storage medium. The processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device executes the method for broadcasting Bluetooth data packets provided in this application.

According to one aspect of the present application, there is provided a computer program product comprising computer instructions stored in a computer readable storage medium. The processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device executes the method for receiving Bluetooth data packets provided in this application.

Description of drawings

In order to more clearly introduce the technical solutions in the embodiments of the present application, the drawings that need to be used in the description of the embodiments of the present application will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present application , for those skilled in the art, other drawings can also be obtained based on these drawings without creative work.

Fig. 1 is a schematic diagram of an implementation environment of Bluetooth broadcasting;

FIG. 2 is a schematic diagram of a method for periodic synchronization of Bluetooth data packets involved in an embodiment of the present application;

Fig. 3 is the flowchart of the method for broadcasting bluetooth data packet in the first wireless terminal that an exemplary embodiment of the present application provides;

FIG. 4 is a schematic diagram of the composition of an auxiliary data packet provided based on the embodiment shown in FIG. 3;

FIG. 5 is a flowchart of a method for receiving a Bluetooth data packet in a second wireless terminal provided by an embodiment of the present application;

FIG. 6 is a flowchart of a method for broadcasting and periodic synchronization of Bluetooth data packets provided in another exemplary embodiment of the present application;

FIG. 7 is a schematic diagram of adding an identification list of a first wireless terminal based on the embodiment shown in FIG. 6;

FIG. 8 is a schematic diagram of a second wireless terminal stopping broadcasting a first message provided by an embodiment of the present application;

FIG. 9 is a schematic diagram of a first wireless terminal stopping broadcasting auxiliary data packets provided by the present application;

FIG. 10 is a schematic diagram of data packet scheduling based on a BIS service in a first wireless terminal provided by an embodiment of the present application;

Fig. 11 is a flow chart of some steps provided based on the broadcast method of the bluetooth packet shown in Fig. 3;

Fig. 12 is a structural block diagram of an apparatus for broadcasting Bluetooth data packets in a first wireless terminal provided by an exemplary embodiment of the present application;

Fig. 13 is a structural block diagram of a broadcast synchronization device in a second wireless terminal provided by another exemplary embodiment of the present application;

Fig. 14 is a structural block diagram of a terminal provided by an exemplary embodiment of the present application.

Detailed ways

In order to make the purpose, technical solution and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings.

When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.

In the description of the present application, it should be understood that the terms "first", "second" and so on are used for descriptive purposes only, and should not be understood as indicating or implying relative importance. In the description of this application, it should be noted that, unless otherwise clearly stipulated and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated Ground connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application in specific situations. In addition, in the description of the present application, unless otherwise specified, "plurality" means two or more. "And/or" describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and/or B may indicate: A exists alone, A and B exist simultaneously, and B exists independently. The character "/" generally indicates that the contextual objects are an "or" relationship.

In order to make the solutions shown in the embodiments of the present application easy to understand, several terms appearing in the embodiments of the present application are introduced below.

PADV (Periodic Advertising, periodic broadcast);

BT (Bluetooth, bluetooth);

BLE (Bluetooth Low Energy, Bluetooth Low Energy);

Bluetooth Classic;

BLE Audio (Bluetooth Low Energy Audio, Bluetooth Low Energy Audio);

Sync link (Synchronization link, synchronization link);

True Wireless Stereo (TWS);

AE Scan (Extended Scan, AE Scan);

AE broadcast (Extended Advertising, extended broadcast);

Tx(Transmit, send);

Rx(Receive, receive);

ACK (Acknowledge character, confirmation character);

BIS (Broadcast Isochronous Stream, Broadcast Isochronous Stream);

BIG (Broadcast Isochronous Group, broadcast synchronization group);

SCAN_REQ (Scannable Request, broadcast confirmation packet).

Auxiliary data packet: a data packet used to provide the broadcast cycle and the frequency of sending and receiving. In a possible manner, the auxiliary data package is an aggregate data package including various data packages. The second wireless terminal may completely obtain various data packets in the foregoing auxiliary data packets. With the support of a complete variety of data packets, the second wireless terminal can obtain the broadcast cycle and the frequency of sending and receiving. If the auxiliary data packet is used to receive the Bluetooth data packet sent by the BIS, the auxiliary data packet may include a designated broadcast data packet, an AUX data packet, and a periodic data packet.

Please refer to FIG. 1 . FIG. 1 is a schematic diagram of an implementation environment of Bluetooth broadcasting. In FIG. 1 , there are two types of wireless terminals. The first type of wireless terminal is a first wireless terminal 110 for broadcasting Bluetooth data packets to surroundings. The second type of wireless terminal is the second wireless terminal 120 for scanning the surrounding Bluetooth signals and receiving the Bluetooth data packets after scanning the Bluetooth signals. Schematically, one first wireless terminal 110 and three second wireless terminals 120 are shown in FIG. 1 .

In this scenario, please refer to FIG. 1 . FIG. 1 is a schematic diagram of an auxiliary data packet and a BIS-based broadcast Bluetooth data packet. In FIG. 1, the first wireless terminal 110 may broadcast the auxiliary data packet to the surroundings. Then, within the coverage of the broadcast signal of the first wireless terminal 110, the second wireless terminal 120 can receive the auxiliary data packet. The second wireless terminal 120 is able to decode the broadcast period and the transceiving frequency point from the auxiliary data packet. Subsequently, the second wireless terminal 120 can start to synchronize to the broadcast cycle of the Bluetooth data packet broadcast by the first wireless terminal 110 from the position of the transceiver frequency point after the first broadcast cycle after receiving the auxiliary data packet, so as to be able to periodically receive Bluetooth packets.

In a possible implementation manner, in Bluetooth protocol specification 5.2, the second wireless terminal 120 is also called a scanning device. In this application, devices with a scanning (scan) function are collectively referred to as second wireless terminals.

Please refer to FIG. 2 . FIG. 2 is a schematic diagram of a method for periodic synchronization of Bluetooth data packets according to an embodiment of the present application. In FIG. 2 , the first wireless terminal 110 broadcasts an auxiliary data packet 210 around at time t0. The second wireless terminal 120 receives the auxiliary data packet 210 at time t1, and obtains the broadcast period and the frequency point of sending and receiving by decoding the auxiliary data packet 210 . Thus, the second wireless terminal 120 determines that the Bluetooth data packet is broadcast on the transceiving frequency point, and the time at which the next time window for receiving the Bluetooth data packet starts is t1+broadcast period. If T is used to represent the broadcast period, then the second wireless terminal 120 determines that the next receiving window is (t1+T, the transceiver frequency point), and the next receiving window is used as a reference point to synchronize with the broadcast period of the Bluetooth data packet, so that the second The second wireless terminal 120 can periodically receive Bluetooth data packets.

It should be noted that the auxiliary data packets in the BIS mode stipulated in version 5.2 of the Bluetooth protocol specification will be sent continuously, which consumes power, air interface resources and processing resources of the first wireless terminal to a certain extent.

The present application discloses a broadcasting method applied to a Bluetooth data packet in a first wireless terminal, and a broadcast synchronization method applied to a Bluetooth data packet in a second wireless terminal, which can be used when the second wireless terminal has successfully synchronized to the Bluetooth After the broadcast period of the data packet, the first wireless terminal stops broadcasting the auxiliary data packet, thereby reducing the power consumption of the first wireless terminal and the occupation of software and hardware resources, and at the same time reducing the occupation of communication resources by the auxiliary data packet. For details, please refer to the following introduce.

Please refer to FIG. 3 . FIG. 3 is a flow chart of a method for broadcasting a Bluetooth data packet in a first wireless terminal provided by an exemplary embodiment of the present application. In Fig. 3, the method for broadcasting the Bluetooth data packet includes:

Step 310, broadcasting an auxiliary data packet, where the auxiliary data packet is used to provide a broadcast period and a sending and receiving frequency point.

In the embodiment of the present application, the first wireless terminal can broadcast the auxiliary data packet to the surrounding space.

In a possible implementation manner, if the auxiliary data packet is a data packet, the first wireless terminal may choose to broadcast the auxiliary data packet in a channel supported by the Bluetooth protocol. For example, the first wireless terminal may broadcast the auxiliary data packet on the frequency point 37, the frequency point 38 or the frequency point 39, so that the second wireless terminal can receive the auxiliary data packet from any one of the above frequency points.

In another possible implementation, if the auxiliary data packet is a group of data packets, the first wireless terminal may broadcast the corresponding type of data packet according to the frequency and time requirements of each type of data packet in the group of data . For example, if the auxiliary data packet includes the first type of auxiliary data packet, the second type of auxiliary data packet and the third type of auxiliary data packet, the first wireless terminal can respectively broadcast Ancillary data packets of each type. Optionally, the first wireless terminal may receive the first type of auxiliary data packet, the second type of auxiliary data packet, and the third type of auxiliary data packet in sequence. The first type of auxiliary data packets can still be broadcast on frequency 37 , frequency 38 or frequency 39 .

Correspondingly, the broadcasting cycle and the sending and receiving frequency points for receiving the Bluetooth data packet may be stored in the third type of data packet among the above three types of data. However, in order for the second wireless terminal to receive the third type of data packet, the second wireless terminal first needs to obtain a receiving window for receiving the third type of data packet. The time-frequency information is stored in the second type of data packet. Similarly, in order to receive the second type of data packet, the second wireless terminal needs to receive the first type of data packet, and the time-frequency information for receiving the first type of data packet is stored in the first type of data packet. For the first type of data packet, the first wireless terminal may broadcast the first type of data packet on the Bluetooth broadcast channel.

In other words, the first wireless terminal may continuously broadcast the first type of data packet, the second type of data packet and the third type of data packet.

Please refer to FIG. 4 . FIG. 4 is a schematic diagram of the composition of an auxiliary data packet provided based on the embodiment shown in FIG. 3 . In FIG. 4 , the first wireless terminal broadcasts a first-type data packet 410 at frequency point 37 , frequency point 38 and frequency point 39 . The first type of data packet 410 includes first time-frequency information. The first wireless terminal sends the second-type data packet 420 in the sending window indicated by the first time-frequency information. The second type of data packet 420 includes second time-frequency information. The first wireless terminal sends the third type data packet 430 in the sending window indicated by the second time-frequency information. The third type of data packet 430 includes the sending and receiving frequencies and the broadcast period. Optionally, the second type of data packet 420 may be an AUX data packet; the third type of data packet 430 may be a Periodic data packet. Optionally, both the first time-frequency information and the second time-frequency information include time point and frequency point information for sending.

Correspondingly, in the second wireless terminal, the second wireless terminal needs to receive the first type of data packet 410 first, and then receive the second type of data packet 420 according to the first time-frequency information in the first type of data packet 410 . Subsequently, the second wireless terminal can receive the third type of data packet 430 according to the second time-frequency information in the second type of data packet 420 , and finally obtain the transceiving frequency point and broadcast period by decoding the third type of data packet 430 .

Step 320, based on the broadcast period, periodically broadcast the Bluetooth data packet on the transceiver frequency point.

In the embodiment of the present application, the first wireless terminal can periodically broadcast the Bluetooth data packet on the transmitting and receiving frequency point based on the broadcast period. It should be noted that this application does not limit the execution order of step 320 and step 310 . The first wireless terminal may first perform step 310 and then perform step 320 , or may first perform step 320 and then perform step 310 .

Optionally, the Bluetooth data packet broadcast each time may be a first data packet or a retransmission data packet, which is not limited in this embodiment of the present application. Wherein, the first data packet is the Bluetooth data packet sent by the first wireless terminal for the first time; the retransmission data packet refers to the data packet when the first wireless terminal has sent this type of Bluetooth data packet and sends the Bluetooth data packet again.

Step 330: Receive a first message from the second wireless terminal, where the first message is used to indicate that the second wireless terminal has been synchronized to the broadcast cycle.

In this embodiment of the present application, the first wireless terminal can receive the first message, and the first message may be a data packet sent through ADV broadcast.

In a possible implementation manner, the first wireless terminal may parse the first message, and the parsed first message is used to indicate that the second wireless terminal sending the first message has synchronized to the broadcast period of the Bluetooth data packet. It should be noted that when the second wireless terminal has been synchronized to the broadcast period of the Bluetooth data packet, it means that the second wireless terminal can receive each Bluetooth data packet sent by the first wireless terminal according to the broadcast period.

Step 340, when the first preset condition is met, stop broadcasting the auxiliary data packet.

In this embodiment of the present application, the first wireless terminal can determine whether the current environment information satisfies the first preset condition. In a possible manner, whether the second wireless terminal receives the auxiliary data packet may be used as a kind of environment information.

Optionally, when the auxiliary data packet has been successfully broadcast to the second wireless terminal, and the second wireless terminal is the terminal to which the first wireless terminal wishes to send the auxiliary data packet, the first wireless terminal does not need to send the auxiliary data packet. The first wireless terminal considers that the situation meets the first preset condition, so it stops broadcasting the auxiliary data packet.

It should be noted that the first preset condition is used to identify whether the second wireless terminal is a device that the first wireless terminal wishes to receive the auxiliary data packet.

Optionally, the first wireless terminal stops broadcasting the auxiliary data packet when the second wireless terminal indicated by the first message is a preset terminal. Wherein, the identifier of the second wireless terminal may be pre-stored in the first wireless terminal.

Optionally, the first wireless terminal can also obtain the identity of the second wireless terminal from the first message, and verify the identity of the second wireless terminal locally. In a possible verification manner, the first wireless terminal can maintain an identification list (list) locally, and the list may include an identification of a device or identifications of multiple devices.

When the identifier of the second wireless terminal matches the locally stored identifier, the first wireless terminal stops broadcasting the auxiliary data packet. If the auxiliary data packet is a designated data packet, it is only necessary for the first wireless terminal to stop broadcasting the data packet. If the auxiliary data packet includes data packets of multiple types, the first wireless terminal stops broadcasting the data packets of multiple types.

In summary, the method for broadcasting Bluetooth data packets in the first wireless terminal provided by this embodiment can broadcast auxiliary data packets to the surroundings through the first wireless terminal. The auxiliary data packets are provided with a broadcast period and a sending and receiving frequency point. The broadcast cycle broadcasts the Bluetooth data packet on the transceiver frequency point, and after receiving the first message indicating that the second wireless terminal has been synchronized to the broadcast cycle of the Bluetooth data packet, when the first preset condition is met, stop broadcasting the auxiliary data Bag. Because the first wireless terminal can receive the feedback message of the second wireless terminal, and confirm whether the Bluetooth broadcast has been synchronized according to the feedback message, when the Bluetooth broadcast has been synchronized, stop broadcasting the auxiliary data packet, thereby reducing the performance of the first wireless terminal. Consumption, and reduce the occupation of communication resources.

The method for broadcasting a Bluetooth data packet in a first wireless terminal provided in an embodiment of the present application includes:

Optionally, based on the broadcast period, the Bluetooth data packet is periodically broadcast on the transceiver frequency point, including:

On the transceiver frequency point, the bluetooth data packet is broadcast according to the broadcast cycle in the form of broadcast synchronous stream BIS.

Optionally, the first message is periodically sent by the second wireless terminal, and the method further includes:

In response to stopping broadcasting the auxiliary data packet, sending a second message to the second wireless terminal, the second message is used to instruct the second wireless terminal to stop periodically sending the first message.

Optionally, in response to stopping broadcasting the auxiliary data packet, sending a second message to the second wireless terminal, including:

determining the frequency point at which the first message is received; and

In response to stopping broadcasting of the auxiliary data packet, a second message is sent to the second wireless terminal on the frequency point.

Optionally, the first message includes the identity of the second wireless terminal, and when the first preset condition is met, stop broadcasting the auxiliary data packet, including:

marking the second wireless terminal as synchronized if the identity of the second wireless terminal matches the identity of the list of identities; and

Responsive to each identity in the list of identities of the first wireless terminal being marked as synchronized, broadcasting of assistance data packets ceases.

Optionally, the identifier is a Bluetooth address.

Optionally, when the first preset condition is met, stop broadcasting the auxiliary data packet, including:

In response to the time period after receiving the first message being greater than a preset threshold, stop broadcasting the auxiliary data packet.

Optionally, the method also includes:

Scan the characteristic information of the wireless terminal to be matched around;

In response to the characteristic information meeting the second preset condition, the identifier of the wireless terminal to be matched is stored in the identifier list of the first wireless terminal.

Optionally, receiving the first message includes:

The first message is received through a short-distance wireless communication protocol, and the short-distance wireless communication protocol includes one of the Bluetooth protocol, the WiFi protocol, and the ZigBee protocol.

Optionally, the short-distance wireless communication protocol is a Bluetooth protocol, and receiving the first message through the short-distance wireless communication protocol includes:

Establish a Bluetooth physical link ACL with the second wireless terminal; and

The first message is received via the Bluetooth physical link ACL.

Optionally, the first wireless terminal is at least one of a mobile terminal, a tablet computer, a smart TV, and a Bluetooth speaker.

The embodiment of the present application also provides a method for receiving a Bluetooth data packet in the second wireless terminal, as a method applied in the second wireless terminal opposite to the first wireless terminal. For details, refer to the following embodiments.

Please refer to FIG. 5 . FIG. 5 is a flow chart of a method for receiving a Bluetooth data packet in a second wireless terminal according to an embodiment of the present application. In Fig. 5, the broadcast synchronization method of the Bluetooth data packet includes:

Step 510, receiving an auxiliary data packet from the first wireless terminal, where the auxiliary data packet is used to provide a broadcast period and a frequency point for sending and receiving.

In the embodiment of the present application, the second wireless terminal can receive the auxiliary data packet. After receiving the auxiliary data packet, the second wireless terminal will analyze the auxiliary data packet to know the source of the auxiliary data packet, so as to determine that the source of the auxiliary data packet is the first wireless terminal.

In a possible implementation, if the auxiliary data packet is a data packet, the auxiliary data packet can be sent at frequency point 37, frequency point 38, and frequency point 39, so that the second wireless terminal can quickly discover the auxiliary data packet . It should be noted that, in the Bluetooth broadcasting scenario, frequency points 37, 38, and 39 are commonly used frequencies of broadcast control data packets.

In another possible implementation, if the auxiliary data packet is a plurality of data packets, the first type of data packet in the auxiliary data packet can be sent at frequency point 37, frequency point 38, and frequency point 39, and the second The wireless terminal parses out the receiving window for receiving the next type of data packet from the first type of data packet, and continues to parse out the receiving window for receiving the next type of data packet after receiving the next type of data packet until a type of data packet appears. The information contained in the data packet is the broadcast cycle and the frequency of sending and receiving for broadcasting the Bluetooth data packet.

It should be noted that the embodiment of the present application does not limit the number or types of auxiliary data packets, and any form that can carry the broadcast cycle and sending and receiving frequency points in the auxiliary data packets can be implemented.

Step 520: Determine the receiving window based on the broadcast period and the frequency of sending and receiving.

In the embodiment of the present application, the second wireless terminal can determine the start time of the next receiving window based on the broadcast period. For example, the broadcast period may exist in the form of offset (offset) data. If the broadcast period is T, the second wireless terminal determines the time t1+T when receiving the auxiliary data packet including the broadcast period and the sending and receiving frequency point as the start time of the next receiving window.

The second wireless terminal determines the window whose frequency domain is located at the transceiving frequency point and whose starting point of the time domain is t1+T as the receiving window for receiving the Bluetooth data packet.

Step 530, synchronize with the broadcast period based on the receiving window.

In the embodiment of the present application, the second wireless terminal can synchronize with the broadcast period for broadcasting the Bluetooth data packet based on the receiving window. After the second wireless terminal is synchronized to the broadcast cycle, the second wireless terminal can periodically receive the Bluetooth data packets according to the broadcast cycle, thereby achieving the effect of synchronizing to the Bluetooth broadcast and continuously receiving the Bluetooth data packets sent by the first wireless terminal .

Step 540, periodically receiving Bluetooth data packets from the first wireless terminal in response to the second wireless terminal having synchronized with the broadcast cycle.

In the embodiment of the present application, after the second wireless terminal is synchronized with the broadcast period, the second wireless terminal can periodically receive the Bluetooth data packet from the first wireless terminal. Therefore, the second wireless terminal will be able to continuously receive the Bluetooth data packets periodically broadcast by the first wireless terminal.

Step 550: Send a first message to the first wireless terminal, where the first message is used to indicate that the second wireless terminal has been synchronized to the broadcast cycle.

In the embodiment of the present application, the second wireless terminal can send the first message to the first wireless terminal after being synchronized with the broadcast cycle for broadcasting the Bluetooth data packet. In this example, the sending of the auxiliary data packet by the first wireless terminal is taken as an example for description. Therefore, in this implementation scenario, the second wireless terminal sends the first message to the first wireless terminal.

It should be noted that, the first message may function as an ACK message, which realizes notifying the first wireless terminal whether the auxiliary data packet broadcast by it is successfully received. When the first wireless terminal receives the first message, the first wireless terminal will know that the second wireless terminal has successfully received the auxiliary data packet and is synchronized with the broadcast cycle of broadcasting the Bluetooth data packet.

To sum up, the scheme shown in this application can enable the second wireless terminal to analyze the broadcast cycle and transceiver frequency for receiving the Bluetooth data packet by receiving the auxiliary data packet, and determine the receiving window according to the broadcast cycle and the transceiver frequency , based on the receiving window and the broadcast period of the broadcast Bluetooth data packet synchronization and periodically receive the Bluetooth data packet. On this basis, the second wireless terminal can also feed back the first message to the first wireless terminal. The first message is used to feed back the information that it has synchronized with the broadcast cycle to the first wireless terminal, which improves the awareness of the first wireless terminal that it is broadcasting. The ability to receive auxiliary data packets, thereby optimizing the efficiency of the Bluetooth broadcasting system, and reducing unnecessary consumption of power and communication resources.

The method for receiving the Bluetooth data packet in the second wireless terminal provided in the embodiment of the present application includes:

Optionally, periodically receiving the Bluetooth data packet from the first wireless terminal includes:

On the receiving window, Bluetooth data packets are periodically received from the first wireless terminal in the form of a broadcast isochronous stream BIS.

Optionally, the method also includes:

receiving a second message from the first wireless terminal, the second message indicating that the second wireless terminal has received the first message; and

Stop broadcasting the first message.

Optionally, the second wireless terminal is at least one of a Bluetooth speaker, a mobile terminal and a wireless earphone.

Based on the solution disclosed in the previous embodiment, the first wireless terminal can also notify the second wireless terminal to stop broadcasting, and receive the first message through other methods, please refer to the following embodiment.

Please refer to FIG. 6 . FIG. 6 is a flow chart of a method for broadcasting and receiving Bluetooth data packets according to another exemplary embodiment of the present application. The method can be implemented by cooperation of the first wireless terminal and the second wireless terminal. In Figure 6, the method includes:

Step 611, the first wireless terminal broadcasts an auxiliary data packet.

In the embodiment of the present application, the execution process of step 611 is the same as the execution process of step 310, and will not be repeated here.

Accordingly, the second wireless terminal receives the assistance data packet from the first wireless terminal.

In the embodiment of the present application, the execution process of the second wireless terminal receiving the auxiliary data packet is the same as the execution process of step 510, and will not be repeated here.

Step 612, the second wireless terminal parses the auxiliary data packet to obtain the broadcast cycle and the frequency of sending and receiving, and determines the next receiving window based on the broadcast cycle and the frequency of sending and receiving.

In the embodiment of the present application, the second wireless terminal can record the time when the auxiliary data packet is received, and add the broadcast period on the basis of this time, so as to obtain the start time of the next receiving window, and determine the next A receive window for receiving Bluetooth packets.

Step 613, the second wireless terminal synchronizes with the broadcast period for broadcasting the Bluetooth data packet based on the receiving window.

Optionally, after the second wireless terminal is synchronized with the broadcast cycle for broadcasting Bluetooth data packets, the second wireless terminal will be able to start from the determined receiving window, and receive to the Bluetooth packet.

Step 614, the first wireless terminal broadcasts the bluetooth data packet in the form of a broadcast synchronous stream BIS according to the broadcast period on the transceiver frequency point.

In the embodiment of the present application, the first wireless terminal periodically broadcasts the Bluetooth data packet in the form of a broadcast synchronous stream BIS at the transceiver frequency point according to the broadcast period. It should be noted that the starting point of step 614 may be earlier than step 611. Step 614 may also be executed in response to completion of step 611 .

Correspondingly, the second wireless terminal periodically receives the Bluetooth data packet in the form of broadcast synchronous stream BIS in the receiving window.

Step 615, the second wireless terminal sends the first message to the first wireless terminal.

Correspondingly, the first wireless terminal receives the first message sent by the second wireless terminal. In a possible implementation manner, the first wireless terminal may monitor the first message through a background.

In this embodiment of the present application, the first message may be broadcast through ADV.

Step 616, marking the second wireless terminal as synchronized in response to the identity of the second wireless terminal matching the identity in the identity list.

Wherein, the first message includes the identifier of the second wireless terminal. The identifier may be information that can uniquely identify the identity of the terminal.

On the one hand, the identifier can be a hardware address such as a Bluetooth address or a MAC (Media Access Control Address, Media Access Control Address). After the corresponding hardware components are installed in the terminal, generally there will be no hardware replacement. Therefore, the hardware address can more accurately represent the designated mobile terminal.

On the other hand, the identifier can also be a character string prepared by a standardization organization. For example, the identifier can be IMEI (International Mobile Equipment Identification Number, International Mobile Equipment Identification Number), ESN (Electronic Serial Numbers, Electronic Serial Number) or MEID (Mobile Equipment Identifier, Mobile Equipment Identifier).

Optionally, when the identifier is a Bluetooth address, the first wireless terminal can mark the second wireless terminal as synchronized in response to the Bluetooth address included in the first message matching the Bluetooth address in the identifier list of the first wireless terminal .

In this embodiment of the present application, the first wireless terminal may implement step (a1), step (a2) and step (a3) to realize pre-establishing the identification list of the first wireless terminal. Optionally, the identification list may be a white list.

Step (a1), scan the feature information of the surrounding devices to be matched.

Optionally, the first wireless terminal can scan the feature information of surrounding devices to be matched. Among them, the feature information can be any feature information in the model of the device, IMEI (International Mobile Equipment Identity, International Mobile Equipment Identity), MAC (Media Access Control Address, Media Access Control Address) address or Bluetooth address .

Step (a2), in response to the fact that the characteristic information meets the second preset condition, the identifier of the device to be matched is acquired.

Optionally, the second preset condition may be stored in the first wireless terminal. Wherein, the second preset condition is used to identify a second wireless terminal that matches the first wireless terminal. In an actual application scenario, the first wireless terminal and the second wireless terminal may be a group of devices used in conjunction. For example, the first wireless terminal is a smart TV, and the second wireless terminal is multiple Bluetooth speakers. Alternatively, the first wireless terminal is a smart phone, and the second wireless terminal is a plurality of bluetooth speakers.

1) The second preset condition is that the feature information contains a specified character string.

For example, the specified string is 14:77:40:? ? :? ? :? ? . When the first 6 characters of the feature information are the same as the specified character string, the first wireless terminal determines that the feature information meets the second preset condition. It should be noted that the last six digits of the character string are represented by a question mark "?" because there is no numerical requirement for the last six digits.

2) The second preset condition is that the feature information is in a preset interval.

For example, the preset interval is 14:77:40:74:34:00˜14:77:40:74:34:EE. When the character of the feature information falls within the above preset range, the first wireless terminal determines that the feature information meets the second preset condition.

In response to the feature information meeting the second preset condition, the first wireless terminal obtains the Bluetooth address of the device to be matched.

Step (a3), saving the identification of the device to be matched in the identification list of the first wireless terminal.

Please refer to FIG. 7 , which is a schematic diagram of adding an identification list of a first wireless terminal based on the embodiment shown in FIG. 6 . In FIG. 7 , it is illustrated by taking the identification as an example of a Bluetooth address. The first wireless terminal scans surrounding devices to be matched, and the devices to be matched include a first device to be matched 71 , a second device to be matched 72 , and a third device to be matched 73 and the fourth device 74 to be matched. After verifying the above four devices, the first wireless terminal confirms that the first device to be matched 71, the second device to be matched 72, and the third device to be matched 73 meet the preset conditions, and then obtains the first device to be matched 71, the second device to be matched Bluetooth addresses of the device 72 and the third device 73 to be matched, and add the obtained Bluetooth addresses to the identification list of the first wireless terminal.

Optionally, the first wireless terminal adds the obtained Bluetooth address to the white list of the first wireless terminal.

As another possible adding manner, the first wireless terminal may provide an operation interface for the user to manually add, so that the user manually adds the Bluetooth address of the device that needs to be added to the identification list. Schematically, the operation interface may be a user interface provided by an application installed in the first wireless terminal. Optionally, the Bluetooth address in the identification list can also be added through a serial port.

In this embodiment of the present application, the first wireless terminal can add the Bluetooth address of the second wireless terminal to the locally maintained identification list in advance. If there are multiple second wireless terminals, the first wireless terminal may add the respective Bluetooth addresses of the multiple second wireless terminals to the identification list. For example, if the number of second wireless terminals is three, the first wireless terminal may add the Bluetooth addresses of the three second wireless terminals to the identification list. Please refer to Table 1, which shows the data that may be stored in an identification list.

Table 1

Step 617, in response to each identifier in the identifier list being marked as synchronized, the first wireless terminal stops broadcasting the auxiliary data packet.

In this embodiment of the present application, the first wireless terminal may stop broadcasting the auxiliary data packet after each identifier in the identifier list is marked as synchronized. The first wireless terminal may also set the duration of the preset threshold, and stop broadcasting the auxiliary data packet after the system duration after receiving the first message is greater than the preset threshold. For example, the preset threshold may be a value such as 1 minute, 2 minutes or 5 minutes.

It should be noted that if multiple second wireless terminals are maintained in the identification list of the first wireless terminal, and the multiple second wireless terminals are all working normally, each identification in the identification list of the first wireless terminal can be identified as After marking as synchronized, stop broadcasting auxiliary packets. However, when part of the second wireless terminals in the identification list are offline due to failure or being outside the broadcast range of the first wireless terminal, the first wireless terminal can control the broadcast of the auxiliary data packet by a preset threshold duration, thereby Stopping the broadcast of the auxiliary data packet in time reduces the energy consumption of the first wireless terminal and unnecessary consumption of communication resources.

Schematically, the above step 616 and step 617 can be replaced by the whitelist filtering specified in version 5.2 of the Bluetooth protocol specification, so as to achieve the same function.

Step 618, in response to stopping broadcasting the auxiliary data packet, the first wireless terminal sends a second message to the second wireless terminal, where the second message is used to instruct the second wireless terminal to stop sending the first message.

In the embodiment of the present application, the first wireless terminal can first determine the frequency point corresponding to the first message, that is, the frequency point for receiving the first message. After the frequency point is determined, the first wireless terminal stops broadcasting the auxiliary packet, and then sends the second message to the second wireless terminal on the frequency point. It should be noted that the second message may carry the device identifier of the second wireless terminal. That is, the communication form in which the first wireless terminal sends the second message to the second wireless terminal may be in a unicast form.

In this application, the frequency point is a multiplexed frequency point, and after determining the frequency point, the first wireless terminal will reuse the frequency point to send the second message to the second wireless terminal.

Correspondingly, the second wireless terminal receives the second message sent by the first wireless terminal, and the second message is used to indicate that the first wireless terminal has received the first message.

Schematically, the second message may be a SCAN_REQ confirmation packet.

Step 619, the second wireless terminal stops broadcasting the first message.

In the embodiment of the present application, the second wireless terminal will periodically send the first message to the first wireless terminal before the first wireless terminal receives the first message. This application notifies the second wireless terminal by introducing the second message returned by the first wireless terminal, so that the second wireless terminal stops sending the unnecessary first message.

In a possible application manner, if both the first wireless terminal and the second wireless terminal support Bluetooth protocol specification version 5.2, the second wireless terminal may stop broadcasting the first message after sending the SCAN_RSP data packet.

For illustration, please refer to FIG. 8 , which is a schematic diagram of a second wireless terminal stopping broadcasting a first message provided by an embodiment of the present application. In FIG. 8, a first wireless terminal 810 transmits an auxiliary data packet to a second wireless terminal 820 through an AE broadcast (extended broadcast) and a PADV periodic broadcast. At the same time, the first wireless terminal 810 sends the Bluetooth data packet by broadcasting the synchronous stream BIS. After the second wireless terminal 820 synchronously broadcasts the synchronous flow BIS according to the auxiliary data packet, it confirms that the received Bluetooth data packet is normal, has been synchronized to the BIS broadcast cycle and periodically receives the Bluetooth data packet, and then broadcasts to the first wireless terminal 810 through AE Send the first message. The first wireless terminal 810 receives the first message in a scanning manner. After the first wireless terminal 810 confirms that the second wireless terminal 820 has synchronized to the broadcast period of the BIS according to the first message, it sends a second message, that is, a SCAN_REQ (scanning request) message to the second wireless terminal 820 . Correspondingly, after receiving the second message, the second wireless terminal 820 confirms that the stop condition is satisfied, and stops sending the first message through the AE broadcast.

Please refer to FIG. 9 , which is a schematic diagram of a first wireless terminal stopping broadcasting auxiliary data packets provided in this application. In FIG. 9 , a first wireless terminal 810 is included, and the second wireless terminals include a first second wireless terminal 821 , a second second wireless terminal 822 and a third second wireless terminal 823 . It should be noted that the logic and flow of information interaction between the first wireless terminal 810 and the above three second wireless terminals are the same. The first second wireless terminal 821 among them is taken as an example for introduction. The interaction flow between the first wireless terminal 810 and the first second wireless terminal 821 is similar to the flow shown in FIG. 8 . On the basis of the flow shown in FIG. 8 , the first second wireless terminal 821 receives After the second message sent by the first wireless terminal 810 , that is, the SCAN_REQ (scan request) message, a SCAN_RSP (scan reply) data packet will be sent to the first wireless terminal 810 afterwards. In the scenario shown in FIG. 9, when the first second wireless terminal 821, the second second wireless terminal 822 and the third second wireless terminal 823 all send SCAN_RSP data packets to the first wireless terminal 810, also That is, after all the Bluetooth addresses in the identification list are marked as synchronized, the first wireless terminal 810 stops broadcasting the auxiliary data packet.

Please refer to FIG. 10 , which is a schematic diagram of data packet scheduling based on a BIS service in a first wireless terminal according to an embodiment of the present application. In FIG. 10 , a first scheduling stage 1010 and a second scheduling stage 1020 are included.

In the first scheduling stage 1010, when the PADV service and the BIS service collide at time t11 and t13, the first wireless terminal selects the service with higher priority to send or transmits the service with a preset sending strategy through priority setting. A data packet corresponding to a service. In the execution process of FIG. 10 , the first wireless terminal sends a Bluetooth data packet based on the BIS service at time t11, and sends a periodic broadcast data packet of the PADV service at time t13. The AE broadcast (extended broadcast) and the BIS service collide at time t12, and the first wireless terminal also selects the service with a higher priority to send through priority setting. The first wireless terminal sends the data packet of the BIS service at time t12.

Optionally, the boundary point between the first scheduling stage 1010 and the second scheduling stage 1020 is an anchor point (Anchor). After the anchor point, the first wireless terminal stops sending the auxiliary data packet. In the scenario shown in FIG. Assistance packets will stop broadcasting. Therefore, in the second scheduling stage 1020, the first wireless terminal only broadcasts the Bluetooth data packets of the BIS service.

To sum up, the Bluetooth data packet broadcast and broadcast synchronization method provided by this embodiment can increase the feedback channel between the first wireless terminal and the second wireless terminal on the basis of the existing Bluetooth broadcast specification. In a timely manner, the auxiliary data packets broadcast in the first wireless terminal can be stopped in time, and the first message sent in the second wireless terminal can be stopped in time, and at the same time, the energy consumption of the first wireless terminal and the second wireless terminal and the utilization of communication resources can be optimized. occupancy, and at the same time optimize resource consumption at both ends of the first wireless terminal and the second wireless terminal in the Bluetooth broadcasting scene, and reduce the probability of conflicts caused by the first wireless terminal broadcasting multiple services in parallel.

Based on the methods shown in the above embodiments, the embodiments of the present application also provide a method for broadcasting Bluetooth data packets, which can receive the first message in various ways on the basis of the embodiment shown in Figure 4, please refer to the following embodiments .

Please refer to FIG. 11. FIG. 11 is a flow chart of some steps provided based on the Bluetooth data packet broadcasting method shown in FIG. 3. In FIG. After step 1110 is executed, the first wireless terminal continues to execute step 340 . Wherein, the execution process of step 1110 is described as follows:

Step 1110: Receive the first message through a short-distance wireless communication protocol. The short-distance wireless communication protocol includes one of the Bluetooth protocol, the WiFi protocol, and the ZigBee protocol.

In this embodiment of the present application, the first wireless terminal can receive the first message through a short-distance wireless communication protocol. It should be noted that the short-distance wireless communication protocol may be any one of Bluetooth protocol, Wi-Fi protocol and ZigBee protocol. It is sufficient that the first wireless terminal and the second wireless terminal can simultaneously support the foregoing short-distance wireless communication protocol.

It should be noted that if there is another communication protocol capable of sending the first message from the second wireless terminal to the first wireless terminal, it is also within the protection scope of the solution shown in this application, and this application does not limit it.

Optionally, when the short-distance wireless communication protocol is the Bluetooth protocol, the first wireless terminal may also perform step (b1) and step (b2) instead of step 1110.

Step (b1), establishing a Bluetooth physical link ACL with the second wireless terminal.

In this embodiment of the present application, the first wireless terminal can send a signal through a radio frequency component, and establish a Bluetooth physical link ACL with the second wireless terminal in advance. On this basis, the first wireless terminal and the second wireless terminal can perform information exchange via the Bluetooth physical link ACL.

Step (b2), receiving the first message via the Bluetooth physical link ACL.

In this embodiment of the present application, in the scenario where a Bluetooth physical link ACL is established between the first wireless terminal and the second wireless terminal, the first wireless terminal can receive the first information.

To sum up, the method for broadcasting Bluetooth data packets provided by this embodiment can enable the first wireless terminal and the second wireless terminal to obtain the first message shown in this application in various possible ways, so that the first The wireless terminal stops the auxiliary data packets that do not need to be broadcast in time, so as to reduce the unnecessary waste of energy and communication resources of the first wireless terminal in the Bluetooth broadcast, optimize the resource utilization efficiency of the first wireless terminal in the Bluetooth broadcast, and reduce the broadcast The conflict probability of various services involved in .

The following are device embodiments of the present application, which can be used to implement the method embodiments of the present application. For details not disclosed in the device embodiments of the present application, please refer to the method embodiments of the present application.

Please refer to FIG. 12 , which is a structural block diagram of an apparatus for broadcasting a Bluetooth data packet in a first wireless terminal according to an exemplary embodiment of the present application. The means for broadcasting the Bluetooth data packet can be implemented as all or a part of the first wireless terminal through software, hardware or a combination of the two. The unit includes:

The first broadcast module 1210 is configured to broadcast an auxiliary data packet, and the auxiliary data packet is used to provide a broadcast period and a sending and receiving frequency point.

The second broadcast module 1220 is configured to periodically broadcast Bluetooth data packets on the transceiver frequency point based on the broadcast period.

The first receiving module 1230 is configured to receive a first message from the second wireless terminal, where the first message is used to indicate that the second wireless terminal has been synchronized to the broadcast cycle.

The stop broadcasting module 1240 is configured to stop broadcasting the auxiliary data packet when the first preset condition is met.

In an optional embodiment, the second broadcast module 1220 is configured to broadcast the Bluetooth data packet in the form of a broadcast synchronous stream BIS according to the broadcast period on the transceiver frequency point.

In an optional embodiment, the apparatus further includes a second sending module, configured to send a second message to the second wireless terminal in response to stopping broadcasting the auxiliary data packet, and the second message is used for instructing the second wireless terminal to stop sending the first message periodically. Wherein, the first message is sent periodically by the second wireless terminal.

In an optional embodiment, the second sending module is configured to determine the frequency point at which the first message is received; in response to stopping broadcasting the auxiliary data packet, send the The second wireless terminal sends the second message.

In an optional embodiment, the broadcast stop module 1240 is configured to mark the second wireless terminal as synchronized if the identifier of the second wireless terminal matches the identifier of the identifier list, and the second wireless terminal Including the identity of the second wireless terminal in a message; in response to each of the identities in the list of identities of the first wireless terminal being marked as synchronized, ceasing to broadcast the assistance data packet.

In an optional embodiment, the identifier related to the device is a Bluetooth address.

In an optional embodiment, the broadcast stop module 1240 is further configured to stop broadcasting the auxiliary data packet in response to a time period after receiving the first message being greater than a preset threshold.

In an optional embodiment, the device further includes a list adding module, configured to scan the characteristic information of surrounding wireless terminals to be matched; The identifier of the wireless terminal is stored in the identifier list of the first wireless terminal.

In an optional embodiment, the first receiving module 1230 is configured to receive the first message through a short-distance wireless communication protocol, and the short-distance wireless communication protocol includes one of Bluetooth protocol, WiFi protocol and ZigBee protocol .

In an optional embodiment, the first receiving module 1230 is configured to establish a Bluetooth physical link ACL with the second wireless terminal in response to the short-distance wireless communication protocol being the Bluetooth protocol; via the Bluetooth physical link ACL The first message is received.

In an optional embodiment, the first wireless terminal is at least one of a mobile terminal, a tablet computer, a smart TV, and a Bluetooth speaker.

To sum up, in the device provided by the embodiment of the present application, the first wireless terminal can broadcast the auxiliary data packet to the surroundings. The auxiliary data packet is provided with a broadcast period and a transceiver frequency point, and the terminal broadcasts the Bluetooth data packet on the transceiver frequency point based on the broadcast period. After receiving the first message indicating that the second wireless terminal has been synchronized to the broadcast period of the Bluetooth data packet, when the first preset condition is met, stop broadcasting the auxiliary data packet. Since the first wireless terminal can receive the feedback message and confirm whether the Bluetooth broadcast has been synchronized according to the feedback message, when the Bluetooth broadcast has been synchronized, stop broadcasting the auxiliary data packet, thereby reducing energy consumption and occupancy of communication resources.

Please refer to FIG. 13 . FIG. 13 is a structural block diagram of an apparatus for broadcast synchronization in a second wireless terminal provided by another exemplary embodiment of the present application. The device for broadcasting and synchronizing the bluetooth data packet can be implemented as all or a part of the second wireless terminal through software, hardware or a combination of the two. The unit includes:

The second receiving module 1310 is configured to receive an auxiliary data packet from the first wireless terminal, and the auxiliary data packet is used to provide a broadcast cycle and a sending and receiving frequency point;

A window determination module 1320, configured to determine a receiving window based on the broadcast period and the transceiving frequency point;

A cycle synchronization module 1330, configured to synchronize with the broadcast cycle based on the receiving window;

The third receiving module 1340 is configured to periodically receive Bluetooth data packets in response to the second wireless terminal being synchronized with the broadcast cycle;

The first sending module 1350 is configured to send a first message to the first wireless terminal, where the first message is used to indicate that the second wireless terminal has been synchronized to the broadcast cycle.

Optionally, the third receiving module 1340 is configured to periodically receive the Bluetooth data packet from the first wireless terminal in the form of a broadcast synchronization stream BIS on the receiving window.

Optionally, the apparatus further includes a second stop module, configured to receive a second message from the first wireless terminal, the second message being used to indicate that the second wireless terminal has received the first message ; Stop broadcasting the first message.

Optionally, the second wireless terminal is at least one of a Bluetooth speaker, a mobile terminal and a wireless earphone.

To sum up, the device for receiving Bluetooth data packets in the second wireless terminal provided by this application can increase the feedback channel between the first wireless terminal and the second wireless terminal on the basis of the existing Bluetooth broadcast specification, Timely stop the auxiliary data packet broadcast in the first wireless terminal by means of feedback, and stop the first message sent in the second wireless terminal in time, and optimize the energy consumption and communication between the first wireless terminal and the second wireless terminal Resource occupancy optimizes resource consumption at both ends of the first wireless terminal and the second wireless terminal in the Bluetooth broadcasting scene, and reduces the occurrence probability of multiple services occurring at the first wireless terminal.

Exemplarily, the first wireless terminal and the second wireless terminal shown in the embodiment of the present application can be combined into a terminal, and the terminal has a Bluetooth function. Terminals can include mobile phones, tablet computers, laptop computers, desktop computers, all-in-one computers, servers, workstations, TVs, set-top boxes, smart glasses, smart watches, digital cameras, MP4 playback terminals, MP5 playback terminals, learning machines, point-to-read computer, electronic paper book, electronic dictionary, vehicle-mounted terminal, virtual reality (Virtual Reality, VR) playback terminal or augmented reality (Augmented Reality, AR) playback terminal, etc.

In a possible implementation manner of the present application, the first wireless terminal and the second wireless terminal may be a group of devices used in cooperation. Wherein, the first wireless terminal may be one of a mobile terminal, a tablet computer, a smart TV, and a Bluetooth speaker. Correspondingly, the second wireless terminal may be at least one of a Bluetooth speaker, a mobile terminal, and a wireless earphone.

Fig. 14 is a structural block diagram of a terminal provided by an exemplary embodiment of the present application. As shown in Fig. 14, the terminal includes a processor 1420, a memory 1440 and a Bluetooth module 1460, and the memory 1440 stores at least one instruction, The instructions are loaded and executed by the processor 1420 to implement the method for broadcasting a Bluetooth data packet in the first wireless terminal as described in various method embodiments of the present application, or, the instructions are loaded by the processor 1420 and executed Execute to realize the method for receiving the Bluetooth data packet in the second wireless terminal as described in each method embodiment of the present application.

Processor 1420 may include one or more processing cores. The processor 1420 uses various interfaces and lines to connect various parts of the entire terminal 1400, and executes the terminal by running or executing instructions, programs, code sets or instruction sets stored in the memory 1440, and calling data stored in the memory 1440. 1400 various functions and processing data. Optionally, the processor 1420 may adopt 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). implemented in the form of hardware. The processor 1420 may integrate one or a combination of a central processing unit (Central Processing Unit, CPU), an image processor (Graphics Processing Unit, GPU), a modem, and the like. Among them, the CPU mainly handles the operating system, user interface and application programs, etc.; the GPU is used to render and draw the content that needs to be displayed on the display screen; the modem is used to handle wireless communication. It can be understood that, the above-mentioned modem may not be integrated into the processor 1420, but may be realized by a single chip.

The memory 1440 may include a random access memory (Random Access Memory, RAM), and may also include a read-only memory (Read-Only Memory, ROM). Optionally, the memory 1440 includes a non-transitory computer-readable storage medium (non-transitory computer-readable storage medium). Memory 1440 may be used to store instructions, programs, codes, sets of codes, or sets of instructions. The memory 1440 may include a program storage area and a data storage area, wherein the program storage area may store instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playback function, an image playback function, etc.), Instructions and the like for implementing the following method embodiments; the storage data area can store data and the like involved in the following method embodiments.

The Bluetooth module 1460 is used to support data communication through the Bluetooth standard. Wherein, the bluetooth standard may be any version of the standard released by the bluetooth standard organization.

The embodiment of the present application also provides a computer-readable medium, the computer-readable medium stores at least one instruction, and the at least one instruction is loaded and executed by the processor to implement the first A method for broadcasting bluetooth data packets in a wireless terminal.

The embodiment of the present application also provides a computer-readable medium, the computer-readable medium stores at least one instruction, and the at least one instruction is loaded and executed by the processor to realize the second wireless The method of receiving Bluetooth data packets in the terminal.

It should be noted that: when the Bluetooth data packet broadcasting device provided by the above-mentioned embodiments executes the Bluetooth data packet broadcasting method, the division of the above-mentioned functional modules is used as an example for illustration. In practical applications, the above-mentioned functions can be allocated according to needs. It is completed by different functional modules, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. In addition, the apparatus for broadcasting Bluetooth data packets provided by the above embodiments and the embodiment of the method for broadcasting Bluetooth data packets belong to the same concept, and the specific implementation process thereof can be found in the method embodiments, and will not be repeated here.

It should be noted that: when the broadcast synchronization device of the Bluetooth data packet provided by the above-mentioned embodiment executes the broadcast synchronization method of the Bluetooth data packet, the division of the above-mentioned functional modules is only used as an example for illustration. In practical applications, the above-mentioned Function allocation is accomplished by different functional modules, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. In addition, the Bluetooth data packet broadcast synchronization device and the Bluetooth data packet broadcast synchronization method embodiment provided by the above embodiment belong to the same concept, and the specific implementation process thereof is detailed in the method embodiment, and will not be repeated here.

The serial numbers of the above embodiments of the present application are for description only, and do not represent the advantages and disadvantages of the embodiments.

Those of ordinary skill in the art can understand that all or part of the steps for implementing the above embodiments can be completed by hardware, and can also be completed by instructing related hardware through a program. The program can be stored in a computer-readable storage medium. The above-mentioned The storage medium mentioned may be a read-only memory, a magnetic disk or an optical disk, and the like.

The above descriptions are only exemplary embodiments of the present application that can be realized, and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the Within the protection scope of this application.

Claims (23)

1. A method for broadcasting bluetooth data packets, the method is performed by a first wireless terminal, and the method includes:

   Broadcasting an auxiliary data packet, the auxiliary data packet is used to provide a broadcast period and a sending and receiving frequency point;

   Based on the broadcast period, periodically broadcast Bluetooth data packets on the transceiver frequency point;

   receiving a first message from a second wireless terminal indicating that the second wireless terminal is synchronized to the broadcast cycle; and

   Stop broadcasting the auxiliary data packet when the first preset condition is met.
2. The method according to claim 1, said periodically broadcasting Bluetooth data packets on said transceiver frequency point based on said broadcast cycle, comprising:

   On the transceiving frequency point, broadcast the Bluetooth data packet in the form of a broadcast synchronous stream BIS according to the broadcast period.
3. The method according to claim 2, wherein the first message is sent periodically by the second wireless terminal, the method further comprising:

   In response to stopping broadcasting of the auxiliary data packet, sending a second message to the second wireless terminal, where the second message is used to instruct the second wireless terminal to stop periodically sending the first message.
4. The method according to claim 3, said sending a second message to said second wireless terminal in response to stopping broadcasting said auxiliary data packet, comprising:

   determining the frequency point at which the first message is received; and

   In response to stopping broadcasting of the auxiliary data packet, sending the second message to the second wireless terminal on the frequency point.
5. The method according to claim 1, wherein the first message includes the identity of the second wireless terminal, and when the first preset condition is met, stopping the broadcast of the auxiliary data packet includes:

   marking the second wireless terminal as synchronized if the identity of the second wireless terminal matches an identity list identity list; and

   Responsive to each identity in the list of identities of the first wireless terminal being marked as synchronized, ceasing to broadcast the assistance data packets.
6. The method of claim 5, said identification being a Bluetooth address.
7. The method according to claim 5, when the first preset condition is met, stopping the broadcast of the auxiliary data packet comprises:

   In response to the time period after receiving the first message being greater than a preset threshold, stop broadcasting the auxiliary data packet.
8. The method according to claim 5, said method further comprising:

   Scan the characteristic information of the wireless terminal to be matched around;

   In response to the characteristic information meeting the second preset condition, saving the identifier of the wireless terminal to be matched in the identifier list of the first wireless terminal.
9. According to the method according to any one of claims 1 to 8, said receiving the first message comprises:

   The first message is received through a short-distance wireless communication protocol, and the short-distance wireless communication protocol includes one of a Bluetooth protocol, a WiFi protocol, and a ZigBee protocol.
10. The method according to claim 9, wherein the short-distance wireless communication protocol is a Bluetooth protocol, and receiving the first message through the short-distance wireless communication protocol includes:

    Establishing a Bluetooth physical link ACL with the second wireless terminal; and

    The first message is received via the Bluetooth physical link ACL.
11. The method according to claim 1, the first wireless terminal is at least one of a mobile terminal, a tablet computer, a smart TV, and a Bluetooth speaker.
12. A method for receiving a Bluetooth data packet, the method is performed by a second wireless terminal, the method includes:

    receiving an auxiliary data packet from the first wireless terminal, where the auxiliary data packet is used to provide a broadcast period and a transceiving frequency point;

    Determine a receiving window based on the broadcast period and the transceiver frequency;

    synchronizing with the broadcast period based on the receive window;

    periodically receiving Bluetooth data packets from the first wireless terminal in response to the second wireless terminal having synchronized with the broadcast cycle; and

    sending a first message to the first wireless terminal, where the first message is used to indicate that the second wireless terminal has been synchronized to the broadcast cycle.
13. The method according to claim 12, said periodically receiving Bluetooth data packets from said first wireless terminal, comprising:

    The bluetooth data packet is periodically received from the first wireless terminal in the form of a broadcast synchronous stream BIS on the receiving window.
14. The method of claim 12, further comprising:

    receiving a second message from the first wireless terminal indicating that the first message has been received by the second wireless terminal; and

    Stop broadcasting the first message.
15. The method according to claim 12, the second wireless terminal is at least one of a Bluetooth speaker, a mobile terminal and a wireless earphone.
16. A device for broadcasting bluetooth data packets, said device being used in a first wireless terminal, said device comprising:

    The first broadcast module is used to broadcast an auxiliary data packet, and the auxiliary data packet is used to provide a broadcast period and a frequency point for sending and receiving;

    A second broadcast module, configured to periodically broadcast Bluetooth data packets on the transceiver frequency point based on the broadcast cycle;

    A first receiving module, configured to receive a first message from a second wireless terminal, where the first message is used to indicate that the second wireless terminal has been synchronized to the broadcast period;

    The broadcast stop module is configured to stop broadcasting the auxiliary data packet when the first preset condition is met.
17. A device for receiving a Bluetooth data packet, the device is used in a second wireless terminal, and the device includes:

    The second receiving module is configured to receive an auxiliary data packet from the first wireless terminal, and the auxiliary data packet is used to provide a broadcast cycle and a transceiver frequency point;

    A window determination module, configured to determine a receiving window based on the broadcast period and the transceiver frequency;

    A cycle synchronization module, configured to synchronize with the broadcast cycle based on the receiving window;

    A third receiving module, configured to periodically receive Bluetooth data packets in response to the second wireless terminal being synchronized with the broadcast cycle;

    A first sending module, configured to send a first message to the first wireless terminal, where the first message is used to indicate that the second wireless terminal has been synchronized to the broadcast cycle.
18. A wireless terminal, the wireless terminal includes a processor, a memory connected to the processor, and program instructions stored in the memory, when the processor executes the program instructions, the following claims 1 to 1 are implemented. 11. Any one of the methods for broadcasting Bluetooth data packets.
19. A wireless terminal, the wireless terminal includes a processor, a memory connected to the processor, and program instructions stored in the memory, when the processor executes the program instructions, it implements claims 12 to 15. Any one of the methods for receiving Bluetooth data packets.
20. A computer-readable storage medium, wherein program instructions are stored in the storage medium, and when the program instructions are executed by a processor, the method for broadcasting Bluetooth data packets according to any one of claims 1 to 11 is realized.
21. A computer-readable storage medium, wherein program instructions are stored in the storage medium, and when the program instructions are executed by a processor, the method for receiving Bluetooth data packets according to any one of claims 12 to 15 is realized.
22. A computer program product, the computer program product includes computer instructions, the computer instructions are executed by the processor of the wireless terminal, so that the wireless terminal performs the method for broadcasting Bluetooth data packets according to any one of claims 1 to 11 .
23. A computer program product, the computer program product includes computer instructions, the computer instructions are executed by the processor of the wireless terminal, so that the wireless terminal executes the method for receiving Bluetooth data packets according to any one of claims 12 to 15 .

Images