WO2024082286A1

WO2024082286A1 - Information indication method and apparatus for bluetooth communication, device, and storage medium

Info

Publication number: WO2024082286A1
Application number: PCT/CN2022/126787
Authority: WO
Inventors: 俞忠兴
Original assignee: 哲库科技(上海)有限公司
Priority date: 2022-10-21
Filing date: 2022-10-21
Publication date: 2024-04-25

Abstract

The present application relates to the technical field of Bluetooth, and discloses an information indication method and apparatus for Bluetooth communication, a device and a storage medium. The method comprises: transmitting a current Bluetooth packet, the current Bluetooth packet carrying recommended rate indication information, wherein the recommended rate indication information is used for recommending a transmission rate of a subsequent Bluetooth packet, and the subsequent Bluetooth packet is at least one Bluetooth packet transmitted by a second Bluetooth device to a first Bluetooth device at future time. By carrying the recommended rate indication information in the current Bluetooth packet transmitted by the first Bluetooth device, the transmission rate of the subsequent Bluetooth packet can be determined more accurately and in time, so that the Bluetooth communication between the first Bluetooth device and the second Bluetooth device has higher stability, accuracy and efficiency.

Description

Bluetooth communication information indication method, device, equipment and storage medium

Technical Field

The present application relates to the field of Bluetooth technology, and in particular to an information indication method, device, equipment and storage medium for Bluetooth communication.

Background technique

In the relevant technologies of Bluetooth communication, rate adjustment is performed by the central device based on factors such as the packet error rate and the received signal strength indicator (RSSI) of the other end. Peripheral devices do not participate in rate adjustment.

The Bluetooth Low Energy (BLE) high data throughput (HDT) related technologies currently under discussion have clearly supported a rate range from 2M to 6M, but there is no specific plan for rate adjustment.

How to implement rate adjustment in BLE HDT related technologies is a problem that needs to be solved.

Summary of the invention

The embodiments of the present application provide a method, apparatus, device and storage medium for indicating information in Bluetooth communication, which can be used in Bluetooth communication. A first Bluetooth device and a second Bluetooth device jointly participate in rate adjustment to improve the efficiency of Bluetooth communication.

According to one aspect of the present application, a method for indicating information in Bluetooth communication is provided, the method being executed by a first Bluetooth device, the method comprising:

Sending a current Bluetooth packet, wherein the current Bluetooth packet carries recommended rate indication information;

The recommended rate indication information is used to recommend a sending rate of a subsequent Bluetooth packet, where the subsequent Bluetooth packet is at least one Bluetooth packet sent by the second Bluetooth device to the first Bluetooth device at a future time.

Sending a current Bluetooth packet, where the current Bluetooth packet carries interference indication information, where the interference indication information is used to indicate the interference situation of the target frequency point;

The target frequency is a sending frequency of a previous Bluetooth packet, and the previous Bluetooth packet is a Bluetooth packet sent by a second Bluetooth device to the first Bluetooth device.

According to one aspect of the present application, a method for indicating information in Bluetooth communication is provided, the method being executed by a second Bluetooth device, the method comprising:

receiving a current Bluetooth packet, wherein the current Bluetooth packet carries recommended rate indication information;

receiving a current Bluetooth packet, wherein the current Bluetooth packet carries interference indication information, and the interference indication information is used to indicate interference conditions of a target frequency point;

The target frequency is a sending frequency of a previous Bluetooth packet, and the previous Bluetooth packet is a Bluetooth packet sent by the second Bluetooth device to the first Bluetooth device.

According to one aspect of the present application, a Bluetooth communication information indication device is provided, the device comprising:

A first sending module, configured to send a current Bluetooth packet, wherein the current Bluetooth packet carries recommended rate indication information;

A second sending module is used to send a current Bluetooth packet, where the current Bluetooth packet carries interference indication information, where the interference indication information is used to indicate the interference situation of the target frequency point;

A third receiving module, configured to receive a current Bluetooth packet, wherein the current Bluetooth packet carries recommended rate indication information;

A fourth receiving module, used to receive a current Bluetooth packet, where the current Bluetooth packet carries interference indication information, where the interference indication information is used to indicate the interference situation of a target frequency point;

According to one aspect of the present application, a Bluetooth communication information indication device is provided, which includes: a processor; a transceiver connected to the processor; a memory for storing executable instructions of the processor; wherein the processor is configured to load and execute the executable instructions to implement the Bluetooth communication information indication method as described in the above aspects.

According to one aspect of the present application, a computer-readable storage medium is provided, in which executable instructions are stored. The executable instructions are loaded and executed by a processor to implement the information indication method of Bluetooth communication as described in the above aspect.

According to one aspect of the present application, a chip is provided, which includes a programmable logic circuit and/or program instructions, and when the chip is running, it is used to implement the information indication method of Bluetooth communication as described in the above aspect.

According to one aspect of the present application, a computer program product is provided, which includes computer instructions, the computer instructions are stored in a computer-readable storage medium, a processor of a 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 to implement the information indication method of Bluetooth communication as described in the above aspects.

The technical solution provided by the embodiments of the present application includes at least the following beneficial effects:

By carrying recommended rate indication information in the current Bluetooth packet sent by the first Bluetooth device, the sending rate of the subsequent Bluetooth packet to be sent by the second Bluetooth device to the first Bluetooth device in the future is recommended, so that the second Bluetooth device is more likely to use the rate recommended by the first Bluetooth device to send the subsequent Bluetooth packet. Compared with the related art in which the sending rate of the subsequent Bluetooth packet is determined by the second Bluetooth device itself, the method provided by the present application supports more accurate and timely determination of the sending rate of the subsequent Bluetooth packet, so that the Bluetooth communication between the first Bluetooth device and the second Bluetooth device has higher stability, accuracy and efficiency.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

FIG1 is a schematic diagram showing a Bluetooth communication scenario in the related art;

FIG2 is a schematic diagram showing a flow chart of a method for indicating information in Bluetooth communication provided in some embodiments of the present application;

FIG3 is a schematic diagram showing a flow chart of an information indication method for Bluetooth communication provided in some embodiments of the present application;

FIG4 is a schematic diagram showing a flow chart of a method for indicating information in Bluetooth communication provided in some embodiments of the present application;

FIG5 is a schematic diagram showing a flow chart of a method for indicating information in Bluetooth communication provided in some embodiments of the present application;

FIG6 is a schematic diagram showing a flow chart of a method for indicating information in Bluetooth communication provided in some embodiments of the present application;

FIG7 is a schematic diagram showing a flow chart of a method for indicating information in Bluetooth communication provided in some embodiments of the present application;

FIG8 is a schematic diagram showing a flow chart of a method for indicating information in Bluetooth communication provided in some embodiments of the present application;

FIG9 is a schematic diagram showing a format of a Bluetooth packet provided in some embodiments of the present application;

FIG10 is a schematic diagram showing a format of a Bluetooth packet provided in some embodiments of the present application;

FIG11 shows a structural block diagram of an information indication device for Bluetooth communication provided in some embodiments of the present application;

FIG12 shows a structural block diagram of an information indication device for Bluetooth communication provided in some embodiments of the present application;

FIG13 shows a structural block diagram of an information indication device for Bluetooth communication provided in some embodiments of the present application;

FIG14 shows a structural block diagram of an information indication device for Bluetooth communication provided in some embodiments of the present application;

FIG. 15 shows a schematic structural diagram of an information indication device for Bluetooth communication provided in some embodiments of the present application.

Detailed ways

In order to make the purpose, technical scheme and advantages of the present application clearer, the implementation mode of the present application will be further described in detail below in conjunction with the accompanying drawings. The exemplary embodiments will be described in detail here, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation modes described in the following exemplary embodiments do not represent all implementation modes consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims.

The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. The singular forms of "a", "said" and "the" used in this disclosure and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and/or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

It should be understood that although the terms first, second, third, etc. may be used in the present disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

In the related technology, if the rate of Bluetooth communication between a central device and a peripheral device needs to be adjusted, the central device will adjust the rate based on factors such as the packet error rate and the Received Signal Strength Indicator (RSSI) of the peripheral device, without any involvement of the peripheral device.

The Bluetooth Low Energy (BLE) high data throughput (HDT) technology currently under discussion has clearly supported a rate range from 2M to 6M. Table 1 shows possible rate schemes, modulation methods, and coding methods. However, there is no specific plan for rate adjustment.

Table 1 Possible rate schemes, modulation methods, and coding methods in BLE HDT related technologies

Note: QPSK stands for Quadrature Phase Shift Keying, DQPSK stands for Differential Quadrature Reference Phase Shift Keying, 8PSK stands for Eight Phase Shift Keying, D8PSK stands for Differential Eight Phase-Shift Keying, QAM stands for Quadrature Amplitude Modulation, CC stands for Convolutional Code, CL stands for Convolutional Length, BP stands for Bit Puncture, SP stands for Symbol Puncture and TCM stands for Trellis Coded Modulation.

However, if the BLE HDT-related technology still adopts a rate adjustment solution in which only the central device participates without any participation of peripheral devices, the rate adjustment effect will be poor, affecting the accuracy and timeliness of the adjustment rate, and then affecting the efficiency of Bluetooth communication.

In the related art, since Bluetooth works in the 2.4G frequency band, the data received by the receiver is often incorrect or the signal-to-noise ratio (SNR) is low, not because the signal is not strong enough, but because the interference is strong. Bluetooth is a frequency hopping system, which can avoid interference by frequency modulation. The interference indication in the related art is transmitted in the Bluetooth Link Layer Control Protocol (LLCP) message. This transmission method is relatively slow and has only one final discretion result, which cannot indicate the interference situation in real time, accurately, and promptly.

Based on the above problems, the present application improves the information indication of Bluetooth communication, which can enhance the effect of rate adjustment. The working principle of the information indication of Bluetooth communication is described below through an illustrative embodiment.

FIG. 1 shows a schematic diagram of an information indication system for Bluetooth communication provided by some exemplary embodiments of the present application. The information indication system for Bluetooth communication includes a first Bluetooth device 101 and a second Bluetooth device 102 .

The first Bluetooth device 101 is an electronic device with Bluetooth function, which can be considered as a peripheral device, or a device that accepts a connection request during the process of establishing a Bluetooth link, or a device that acts as a slave device in the link layer in the Bluetooth connection state.

In some embodiments, the first Bluetooth device 101 can be searched by other Bluetooth devices, and/or accept connection requests from other Bluetooth devices, and/or accept requests for interactive data from other Bluetooth devices, and/or receive data sent by other Bluetooth devices.

In some embodiments, the first Bluetooth device 101 is a Bluetooth Low Energy (BLE) device.

The second Bluetooth device 102 is an electronic device with Bluetooth function, which can be considered as a central device, or a device that initiates a connection request during the process of establishing a Bluetooth link, or a device that serves as a master in the link layer in a Bluetooth connection state.

In some embodiments, the second Bluetooth device 102 may actively search for other Bluetooth devices in the vicinity, and/or select a Bluetooth device to be connected to, and/or select a Bluetooth device to exchange data with.

In some embodiments, the second Bluetooth device 102 is a BLE device.

As shown in FIG. 1 , a Bluetooth link is established between a first Bluetooth device 101 and a second Bluetooth device 102 .

In some embodiments, the first Bluetooth device 101 may be one Bluetooth device or multiple Bluetooth devices, and the second Bluetooth device 102 may be one Bluetooth device or multiple Bluetooth devices. This application uses the example that the first Bluetooth device 101 is one Bluetooth device and the second Bluetooth device 102 is one Bluetooth device for schematic illustration, but does not mean to limit the number of the first Bluetooth device 101 and the second Bluetooth device 102.

In some embodiments, the first Bluetooth device 101 can be at least one of a smart phone, a tablet computer, an e-book reader, a laptop computer, a desktop computer, a television, an augmented reality (AR) terminal, a virtual reality (VR) terminal, a mixed reality (MR) terminal, an extended reality (XR) terminal, a baffle reality (BR) terminal, a cinematic reality (CR) terminal, a deceived reality (DR) terminal, a music player, a smart watch, smart glasses, a Bluetooth headset, a Bluetooth bracelet, a Bluetooth watch, a Bluetooth collar, a Bluetooth ring, and Bluetooth glasses.

In some embodiments, the second Bluetooth device 102 can be at least one of a smart phone, a tablet computer, an e-book reader, a laptop computer, a desktop computer, a television, an AR terminal, a VR terminal, an MR terminal, an XR terminal, a BR terminal, a CR terminal, a DR terminal, a music player, a smart watch, smart glasses, a Bluetooth headset, a Bluetooth bracelet, a Bluetooth watch, a Bluetooth collar, a Bluetooth ring, and Bluetooth glasses.

FIG2 is a schematic flow chart of a method for indicating information in Bluetooth communication provided by some exemplary embodiments of the present application. Taking the method executed by the first Bluetooth device 101 shown in FIG1 as an example, the method includes at least some of the following steps:

Step 210: Send the current Bluetooth packet, which carries the recommended rate indication information.

In some embodiments, the recommended rate indication information is used to recommend a sending rate of a subsequent Bluetooth packet, where the subsequent Bluetooth packet is at least one Bluetooth packet sent by the second Bluetooth device to the first Bluetooth device at a future time.

In some embodiments, a Bluetooth packet may also be understood as a Bluetooth protocol data unit (PDU).

To summarize, the method provided by the present application recommends the sending rate of subsequent Bluetooth packets to be sent by the second Bluetooth device to the first Bluetooth device in the future by carrying recommended rate indication information in the current Bluetooth packet sent by the first Bluetooth device, so that the second Bluetooth device is more likely to use the rate recommended by the first Bluetooth device to send subsequent Bluetooth packets. Compared with the related art in which the sending rate of subsequent Bluetooth packets is determined by the second Bluetooth device itself, the method provided by the present application supports more accurate and timely determination of the sending rate of subsequent Bluetooth packets, so that the Bluetooth communication between the first Bluetooth device and the second Bluetooth device has higher stability, accuracy and efficiency.

FIG3 shows a schematic flow chart of a method for indicating information in Bluetooth communication provided by some exemplary embodiments of the present application. Taking the method executed by the first Bluetooth device 101 shown in FIG1 as an example, the method includes at least some of the following steps:

Step 310: Send the current Bluetooth packet, which carries interference indication information.

The interference indication information is used to indicate the interference situation of the target frequency point.

In some embodiments, the target frequency is a sending frequency of a previous Bluetooth packet, and the previous Bluetooth packet is a Bluetooth packet sent by the second Bluetooth device to the first Bluetooth device.

In some embodiments, a Bluetooth packet may also be understood as a Bluetooth PDU.

To summarize, the method provided in the present application enables the receiver of the current Bluetooth packet to obtain the interference situation of the target frequency by carrying interference indication information in the current Bluetooth packet sent by the first Bluetooth device, thereby supporting the receiver of the current Bluetooth packet to adjust the sending frequency of the Bluetooth packet in a timely and accurate manner.

FIG4 shows a schematic flow chart of a method for indicating information in Bluetooth communication provided by some exemplary embodiments of the present application. Taking the method executed by the first Bluetooth device 101 shown in FIG1 as an example, the method includes at least some of the following steps:

Step 410: receiving a previous Bluetooth packet, where the previous Bluetooth packet is a Bluetooth packet sent by the second Bluetooth device to the first Bluetooth device;

Step 430: Send the current Bluetooth packet, which carries the recommended rate indication information.

In some embodiments, the current Bluetooth packet is a Bluetooth feedback packet corresponding to the previous Bluetooth packet, or the current Bluetooth packet carries confirmation response (Acknowledgment, ACK) feedback information or negative confirmation response (Negative Acknowledgement, NACK) feedback information corresponding to the previous Bluetooth packet.

In some embodiments, the sending rate of the subsequent Bluetooth packet corresponds to the first coding and modulation mode, and the recommended rate indication information is used to recommend the first coding and modulation mode of the subsequent Bluetooth packet.

In some embodiments, the recommended rate indication information is determined based on the SNR information. For example, the transmission rate recommended by the recommended rate indication information is positively correlated with the SNR, or the transmission rate recommended by the recommended rate indication information is positively correlated with the SNR in a first interval, and the first interval is a first signal-to-noise ratio interval or a first rate interval.

In some embodiments, the recommended rate indication information is determined by the first Bluetooth device based on SNR information of a previous Bluetooth packet actually received.

In some embodiments, the recommended rate indication information is determined based on first signal-to-noise ratio information when the first Bluetooth device receives a first Bluetooth signal; wherein the first Bluetooth signal is a wireless signal used to transmit a previous Bluetooth packet.

In some embodiments, the recommended rate indication information is encapsulated in a control field of the current Bluetooth packet.

In some embodiments, the recommended rate indication information is carried in a control field of the current Bluetooth packet.

In some embodiments, the current Bluetooth packet also carries interference indication information, and the interference indication information is used to indicate the interference situation of the target frequency point, wherein the target frequency point is the sending frequency point of the previous Bluetooth packet.

In some embodiments, the interference condition of the target frequency point includes one of the following:

There is interference;

No interference;

·unknown.

In some embodiments, the interference situation of the target frequency point is unknown because the first Bluetooth device does not have interference measurement capability, or because the first Bluetooth device cannot inform other Bluetooth devices (such as the second Bluetooth device) of the interference situation of the target frequency point.

In some embodiments, the interference indication information is determined based on a received in-band RSSI and a received out-of-band RSSI.

In some embodiments, the interference indication information is determined by the first Bluetooth device based on an in-band RSSI and an out-of-band RSSI of a previously received Bluetooth packet.

In some embodiments, the interference indication information is determined based on a ratio of a received in-band RSSI and a received out-of-band RSSI.

In some embodiments, the interference indication information is determined by the first Bluetooth device based on a ratio of an in-band RSSI and an out-of-band RSSI of a previously received Bluetooth packet.

In some embodiments, the interference indication information is determined by the first Bluetooth device based on a ratio of an in-band RSSI to an out-of-band RSSI when receiving a first Bluetooth signal; wherein the first Bluetooth signal is a wireless signal used to transmit a previous Bluetooth packet.

In some embodiments, the interference condition of the target frequency point is "interference" means that the ratio of the in-band RSSI to the out-band RSSI is less than the first threshold, and the interference condition of the target frequency point is "no interference" means that the ratio of the in-band RSSI to the out-band RSSI is greater than the second threshold. The first threshold and the second threshold may be the same or different.

In some embodiments, the interference condition of the target frequency point is "interference" means that the signal to interference ratio (SINR) measured by the first Bluetooth device is less than a first threshold, and the interference condition of the target frequency point is "no interference" means that the SINR measured by the first Bluetooth device is greater than a second threshold. The first threshold and the second threshold may be the same or different.

In some embodiments, the interference condition of the target frequency point is "interference" means that the SNR measured by the first Bluetooth device is less than a first threshold, and the interference condition of the target frequency point is "no interference" means that the SNR measured by the first Bluetooth device is greater than a second threshold. The first threshold and the second threshold may be the same or different.

In some embodiments, the interference indication information is encapsulated in a control field of the current Bluetooth packet.

In some embodiments, the interference indication information is carried in a control field of the current Bluetooth packet.

In summary, the method provided by the present application determines the recommended rate indication information and the interference situation of the target frequency through the received previous Bluetooth packet, and carries the recommended rate indication information and the interference situation of the target frequency in the current Bluetooth packet sent, so that the second Bluetooth device is more likely to use the rate recommended by the first Bluetooth device to send the subsequent Bluetooth packet, and supports the second Bluetooth device to consider whether to adjust the sending frequency of the subsequent Bluetooth packet according to the interference situation of the target frequency. The method provided by the present application supports more accurate and timely determination of the sending rate and sending frequency of the subsequent Bluetooth packet, so that the Bluetooth communication between the first Bluetooth device and the second Bluetooth device has higher stability, accuracy and efficiency.

FIG5 is a schematic flow chart of a method for indicating information in Bluetooth communication provided by some exemplary embodiments of the present application. Taking the method executed by the first Bluetooth device 101 shown in FIG1 as an example, the method includes at least some of the following steps:

Step 510: receiving a previous Bluetooth packet, where the previous Bluetooth packet is a Bluetooth packet sent by the second Bluetooth device to the first Bluetooth device;

Step 530: Send the current Bluetooth packet, which carries interference indication information.

In some embodiments, the current Bluetooth packet is a Bluetooth feedback packet corresponding to the previous Bluetooth packet, or the current Bluetooth packet carries ACK feedback information or NACK feedback information corresponding to the previous Bluetooth packet.

In some embodiments, the interference indication information is used to indicate the interference situation of the target frequency point, wherein the target frequency point is the sending frequency point of the previous Bluetooth packet.

There is interference;

No interference;

·unknown.

In some embodiments, the interference indication information is determined by the first Bluetooth device based on the ratio of the in-band RSSI and the out-of-band RSSI when receiving the first Bluetooth signal; wherein the first Bluetooth signal is a wireless signal used to transmit the previous Bluetooth packet.

In some embodiments, the interference condition of the target frequency point is "interference" means that the SINR measured by the first Bluetooth device is less than a first threshold, and the interference condition of the target frequency point is "no interference" means that the SINR measured by the first Bluetooth device is greater than a second threshold. The first threshold and the second threshold may be the same or different.

In some embodiments, the current Bluetooth packet also carries recommended rate indication information.

FIG6 shows a schematic flow chart of a method for indicating information in Bluetooth communication provided by some exemplary embodiments of the present application. Taking the method executed by the second Bluetooth device 102 shown in FIG1 as an example, the method includes at least some of the following steps:

Step 610: Send a previous Bluetooth packet, where the previous Bluetooth packet is a Bluetooth packet sent by the second Bluetooth device to the first Bluetooth device;

Step 630: Receive a current Bluetooth packet, which carries recommended rate indication information.

In some embodiments, the recommended rate indication information is determined based on the SNR information.

There is interference;

No interference;

·unknown.

FIG. 7 is a schematic flow chart of a method for indicating information in Bluetooth communication provided by some exemplary embodiments of the present application. Taking the method executed by the second Bluetooth device 102 shown in FIG. 1 as an example, the method includes at least some of the following steps:

Step 710: Send a previous Bluetooth packet, where the previous Bluetooth packet is a Bluetooth packet sent by the second Bluetooth device to the first Bluetooth device;

Step 730: Receive a current Bluetooth packet, which carries interference indication information.

There is interference;

No interference;

·unknown.

FIG8 is a schematic flow chart of a method for indicating information in Bluetooth communication provided by some exemplary embodiments of the present application. Taking the method performed by the first Bluetooth device 101 and the second Bluetooth device 102 shown in FIG1 as an example, the method includes at least some of the following steps:

Step 810: The second Bluetooth device sends a previous Bluetooth packet to the first Bluetooth device;

In some implementations, the second Bluetooth device sends a first Bluetooth packet to the first Bluetooth device. The first Bluetooth packet can be understood as a previous Bluetooth packet; it can also be understood as a Bluetooth packet sent by the second Bluetooth device to the first Bluetooth device in the past; it can also be understood as a Bluetooth packet sent by the second Bluetooth device to the first Bluetooth device before the first Bluetooth device sends the current Bluetooth packet to the second Bluetooth device.

Step 830: The first Bluetooth device sends the current Bluetooth packet to the second Bluetooth device;

In some embodiments, the first Bluetooth device sends a second Bluetooth packet to the second Bluetooth device. The second Bluetooth packet can be understood as the current Bluetooth packet; it can also be understood as the Bluetooth packet sent by the first Bluetooth device to the second Bluetooth device at the current time; it can also be understood as the Bluetooth packet sent by the first Bluetooth device to the second Bluetooth device after the second Bluetooth device sends the previous Bluetooth packet to the first Bluetooth device; it can also be understood as the Bluetooth packet sent by the first Bluetooth device to the second Bluetooth device immediately before the second Bluetooth device sends the subsequent Bluetooth packet to the first Bluetooth device.

In some embodiments, the packet format of the Bluetooth packet in the present application is shown in Figure 9, including at least one of a preamble and synchronization (SYNC) field, a training field, a control (CTRL) field, a PDU header field, a payload or a multi-block payload (Multi Blocks Payload, MB-Payload) field, and a constant tone extension (CTE) field.

In some embodiments, the preamble and synchronization fields are used to perform frequency synchronization, symbol timing estimation, and automatic gain control (AGC), etc. The duration of transmitting the preamble and synchronization fields is 26.5μs.

In some embodiments, the training field is used to perform AGC training, etc., and the duration of transmitting the training field is 8.5 μs.

In some embodiments, the CTRL field includes an access address (AA) field, a rate indication (RI) field, a sequence number (SN) field, a next expected sequence number (NESN) field, and a cyclic redundancy check (CRC) field.

In some embodiments, the PDU header field includes optional multi-block information (Optional Multi Blocks Information, opt MB-Info).

In some embodiments, the payload or multi-block payload field occupies 0 to 8191 bytes.

In some embodiments, the CTE field is an optional extension field, that is, the Bluetooth packet may include the CTE field or may not include the CTE field. The duration of transmitting the CTE field is 16 to 160 μs.

In some embodiments, the CTRL field is used to indicate Quadrature Phase Shift Keying (QPSK) 0.5CC digital modulation mode.

In some embodiments, RI may be used to indicate the coding and modulation mode of the payload or multi-block payload field of the Bluetooth packet. The range of the rate indicated by RI (RI rate) includes the PDU header field and the payload or multi-block payload field.

In some embodiments, the packet format of the Bluetooth packet in the present application is shown in Figure 10, including at least one of the preamble code and SYNC field, training field, CTRL field, PDU header field, payload or multi-block payload field, and CTE field.

In some embodiments, the preamble and synchronization field are used to perform frequency synchronization, symbol timing estimation, AGC, etc., and the duration of transmitting the preamble and synchronization field is 26.5 μs.

In some embodiments, the CTRL field includes an AA field, an RI field, an SN field, a NESN field, an Hdr-Length field, and a CRC field, wherein the Hdr-Length field occupies 5 bits.

In some embodiments, the PDU header field includes opt MB-Info.

In some embodiments, RI can be used to indicate the coding and modulation mode of the payload or multi-block payload field of this Bluetooth packet. The PDU header field indicates RI and Repeat Coding (REP Coding) mode, or the PDU header field indicates RI and other coding (Other Coding) mode. The range of RI rate is payload or multi-block payload field.

In some embodiments, the AA field occupies 32 bits, the RI field occupies 3 bits, the SN field and the NESN field occupies 2 bits, and the CRC field occupies 16 bits.

In some embodiments, the CTRL field of the current Bluetooth packet also includes a recommended rate indication (Suggested Rate Indication, SRI) field, and the SRI field includes recommended rate indication information for recommending the sending rate of a subsequent Bluetooth packet. The subsequent Bluetooth packet is at least one Bluetooth packet sent by the second Bluetooth device to the first Bluetooth device at a future time.

In some embodiments, the recommended rate indication information is determined by the first Bluetooth device based on the SNR information of the previous Bluetooth packet actually received. It can also be understood that the first Bluetooth device feeds back the recommended RI to the second Bluetooth device based on the SNR information of the previous Bluetooth packet actually received, that is, the first Bluetooth device feeds back the recommended coding and modulation mode to the second Bluetooth device based on the SNR information of the previous Bluetooth packet actually received.

In some embodiments, the recommended rate indication information is determined based on the first signal-to-noise ratio information when the first Bluetooth device receives the first Bluetooth signal; wherein the first Bluetooth signal is a wireless signal used to transmit the previous Bluetooth packet. It can also be understood that the first Bluetooth device feeds back the recommended RI to the second Bluetooth device based on the first signal-to-noise ratio information when receiving the first Bluetooth signal, that is, the first Bluetooth device feeds back the recommended coding and modulation mode to the second Bluetooth device based on the first signal-to-noise ratio information when receiving the first Bluetooth signal.

In some embodiments, the recommended rate indication information is encapsulated in the CTRL field of the current Bluetooth packet.

In some embodiments, the SRI field occupies 2 bits.

In some embodiments, the CTRL field of the current Bluetooth packet also includes an Interference Instructions field, which includes interference indication information for indicating the interference situation of the target frequency point. The target frequency point is the sending frequency point of the previous Bluetooth packet.

There is interference;

No interference;

·unknown.

In some embodiments, the interference indication information is encapsulated in the CTRL field of the current Bluetooth packet.

In some embodiments, the interference indication field occupies 2 bits. When the value of the interference indication field is the first value, it indicates that the target frequency point has no interference; when the value of the interference indication field is the second value, it indicates that the target frequency point has interference; when the value of the interference indication field is the third value, it indicates that the interference situation of the target frequency point is unknown.

Exemplarily, when the value of the interference indication field is "0", it indicates that there is no interference at the target frequency; when the value of the interference indication field is "1", it indicates that there is interference at the target frequency; when the value of the interference indication field is "2", it indicates that the interference situation of the target frequency is unknown.

In some embodiments, the CTRL field of the current Bluetooth packet also includes an SNR field for indicating SNR information.

In some embodiments, the CTRL field of the current Bluetooth packet further includes an RSSI field for indicating in-band RSSI and out-band RSSI information of the previous Bluetooth packet received.

In some embodiments, the format of the previous Bluetooth packet is the same as the format of the current Bluetooth packet.

Step 850: The second Bluetooth device sends a subsequent Bluetooth packet to the first Bluetooth device.

In some implementations, the second Bluetooth device sends a third Bluetooth packet to the first Bluetooth device. The third Bluetooth packet can be understood as a subsequent Bluetooth packet; it can also be understood as a Bluetooth packet sent by the second Bluetooth device to the first Bluetooth device at a future time; it can also be understood as a Bluetooth packet sent by the second Bluetooth device to the first Bluetooth device after the first Bluetooth device sends the current Bluetooth packet to the second Bluetooth device.

In some embodiments, the transmission rate of the subsequent Bluetooth packet is consistent with the transmission rate recommended by the SRI field or SRI information in the current Bluetooth packet.

In some embodiments, the coding and modulation scheme of the subsequent Bluetooth packet is consistent with the first coding and modulation scheme recommended by the SRI field or SRI information in the current Bluetooth packet.

In some embodiments, the format of the subsequent Bluetooth packet is the same as the format of the current Bluetooth packet.

It should be understood that the above-mentioned method embodiments can be used alone or in any combination.

FIG. 11 shows a structural block diagram of an information indication device for Bluetooth communication provided by some exemplary embodiments of the present application, the device comprising at least some of the following modules: a first sending module 1101, a first receiving module 1103, and a first processing module 1105:

The first sending module 1101 is used to send a current Bluetooth packet, where the current Bluetooth packet carries recommended rate indication information;

In some embodiments, the sending rate corresponds to a first coding and modulation scheme; and the recommended rate indication information is used to recommend the first coding and modulation scheme of the subsequent Bluetooth packet.

In some embodiments, the apparatus further includes a first receiving module 1103, configured to receive a previous Bluetooth packet, where the previous Bluetooth packet is a Bluetooth packet sent by the second Bluetooth device to the first Bluetooth device;

The current Bluetooth packet is a Bluetooth feedback packet corresponding to the previous Bluetooth packet, or the current Bluetooth packet carries ACK feedback information or NACK feedback information corresponding to the previous Bluetooth packet.

In some embodiments, the apparatus further includes a first processing module 1105, configured to determine the recommended rate indication information based on first signal-to-noise ratio information when the first receiving module 1103 receives the first Bluetooth signal;

The first Bluetooth signal is a wireless signal used to transmit the previous Bluetooth packet.

In some embodiments, the current Bluetooth packet further carries interference indication information, where the interference indication information is used to indicate the interference situation of the target frequency point;

The target frequency is the sending frequency of the previous Bluetooth packet.

There are interferences;

No interference;

unknown.

In some embodiments, the first processing module 1105 is further configured to determine the interference indication information based on the received in-band RSSI and the received out-band RSSI.

In some embodiments, the first processing module 1105 is further configured to determine the interference indication information based on a ratio of a received in-band RSSI to a received out-of-band RSSI.

In summary, the device provided in this embodiment determines the recommended rate indication information and the interference situation of the target frequency through the received previous Bluetooth packet, and carries the recommended rate indication information and the interference situation of the target frequency in the current Bluetooth packet sent, so that the second Bluetooth device is more likely to use the rate recommended by the first Bluetooth device to send the subsequent Bluetooth packet, and supports the second Bluetooth device to consider whether to adjust the sending frequency of the subsequent Bluetooth packet according to the interference situation of the target frequency. The method provided in this application supports more accurate and timely determination of the sending rate and sending frequency of the subsequent Bluetooth packet, so that the Bluetooth communication between the first Bluetooth device and the second Bluetooth device has higher stability, accuracy and efficiency.

FIG. 12 shows a structural block diagram of an information indication device for Bluetooth communication provided by some exemplary embodiments of the present application, the device comprising at least part of the following second sending module 1201, second receiving module 1203, and second processing module 1205:

The second sending module 1201 is used to send a current Bluetooth packet, where the current Bluetooth packet carries interference indication information, where the interference indication information is used to indicate the interference situation of the target frequency point;

In some embodiments, the apparatus further comprises a second receiving module 1203, configured to receive the previous Bluetooth packet;

There are interferences;

No interference;

unknown.

In some embodiments, the apparatus further comprises a second processing module 1205, configured to determine the interference indication information based on a received in-band received signal strength indication RSSI and a received out-band RSSI.

In some embodiments, the second processing module 1205 is further configured to determine the interference indication information based on a ratio of the received in-band RSSI to the received out-of-band RSSI.

In some embodiments, the current Bluetooth packet also carries recommended rate indication information, and the recommended rate indication information is used to recommend the sending rate of subsequent Bluetooth packets, and the subsequent Bluetooth packet is at least one Bluetooth packet sent by the second Bluetooth device to the first Bluetooth device at a future time.

In some embodiments, the transmission rate corresponds to a first coding modulation scheme;

The recommended rate indication information is used to recommend a first coding and modulation mode of the subsequent Bluetooth packet.

In some embodiments, the second processing module 1205 is further configured to determine the recommended rate indication information based on the first signal-to-noise ratio information when the second receiving module 1203 receives the first Bluetooth signal;

FIG. 13 shows a structural block diagram of an information indication device for Bluetooth communication provided by some exemplary embodiments of the present application, the device comprising at least part of the following third receiving module 1301 and third sending module 1303:

The third receiving module 1301 is used to receive a current Bluetooth packet, where the current Bluetooth packet carries recommended rate indication information;

In some embodiments, the apparatus further includes a third sending module 1303, configured to send a previous Bluetooth packet, where the previous Bluetooth packet is a Bluetooth packet sent by the second Bluetooth device to the first Bluetooth device;

In some embodiments, the recommended rate indication information is determined by the first Bluetooth device based on first signal-to-noise ratio information when receiving the first Bluetooth signal;

The target frequency is the sending frequency of the previous Bluetooth packet.

There are interferences;

No interference;

unknown.

In some embodiments, the interference indication information is determined by the first Bluetooth device based on a received in-band RSSI and a received out-of-band RSSI.

In some embodiments, the interference indication information is determined by the first Bluetooth device based on a ratio of a received in-band RSSI and a received out-of-band RSSI.

In summary, the apparatus provided in this embodiment, by carrying the recommended rate indication information and the interference situation of the target frequency in the current Bluetooth packet, makes it more likely that the second Bluetooth device will use the rate recommended by the first Bluetooth device to send the subsequent Bluetooth packet, and supports the second Bluetooth device to consider whether to adjust the sending frequency of the subsequent Bluetooth packet according to the interference situation of the target frequency. The method provided in this application supports more accurate and timely determination of the sending rate and sending frequency of the subsequent Bluetooth packet, so that the Bluetooth communication between the first Bluetooth device and the second Bluetooth device has higher stability, accuracy and efficiency.

FIG. 14 shows a structural block diagram of an information indication device for Bluetooth communication provided by some exemplary embodiments of the present application, and the device includes at least part of the following fourth receiving module 1401 and fourth sending module 1403:

The fourth receiving module 1401 is used to receive a current Bluetooth packet, where the current Bluetooth packet carries interference indication information, where the interference indication information is used to indicate the interference situation of the target frequency point;

In some embodiments, the apparatus further comprises a fourth sending module 1403, configured to send the previous Bluetooth packet;

There are interferences;

No interference;

unknown.

In some embodiments, the interference indication information is determined by the first Bluetooth device based on receiving an in-band received signal strength indication RSSI and receiving an out-of-band RSSI.

It should be noted that the device provided in the above embodiment is only illustrated by the division of the above functional modules. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

Regarding the device in this embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

FIG15 shows a schematic diagram of the structure of an information indication device for Bluetooth communication provided by some exemplary embodiments of the present application. The information indication device 1500 for Bluetooth communication may be at least one of a smart phone, a tablet computer, an e-book reader, a laptop computer, a desktop computer, a television, an AR terminal, a VR terminal, an MR terminal, an XR terminal, a BR terminal, a CR terminal, a DR terminal, a music player, a smart watch, smart glasses, a Bluetooth headset, a Bluetooth bracelet, a Bluetooth watch, a Bluetooth collar, a Bluetooth ring, and Bluetooth glasses. The electronic device 1500 in the present application may include one or more of the following components: a processor 1510, a memory 1520, and a Bluetooth chip 1530.

The processor 1510 may include one or more processing cores. The processor 1510 uses various interfaces and lines to connect various parts within the entire electronic device 1500, and executes various functions of the electronic device 1500 and processes data by running or executing instructions, programs, code sets or instruction sets stored in the memory 1520, and calling data stored in the memory 1520. Optionally, the processor 1510 can be implemented in at least one hardware form 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). The processor 1510 can integrate one or a combination of a central processing unit (Central Processing Unit, CPU), a graphics processing unit (Graphics Processing Unit, GPU), a neural network processor (Neural-network Processing Unit, NPU) and a modem. Among them, the CPU mainly processes the operating system, user interface, and application programs; the GPU is responsible for rendering and drawing the content that needs to be displayed on the display screen; the NPU is used to implement artificial intelligence (AI) functions; and the modem is used to process wireless communications. It is understandable that the above-mentioned modem may not be integrated into the processor 1510, but may be implemented by a separate chip.

The memory 1520 may include a random access memory (RAM) or a read-only memory (ROM). Optionally, the memory 1520 includes a non-transitory computer-readable medium (Non-Transitory Computer-Readable Storage Medium). The memory 1520 may be used to store instructions, programs, codes, code sets, or instruction sets. The memory 1520 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 for implementing the above-mentioned various method embodiments, etc.; the data storage area may store data (such as audio data, a phone book), etc., created according to the use of the electronic device 1500.

The Bluetooth chip 1530 is a component for implementing Bluetooth functions. The Bluetooth chip 1530 includes two parts: a host and a controller (corresponding to different Bluetooth protocol stacks). The Host and the Controller can run on the same chip (single-chip architecture) or on different chips (dual-chip architecture). For example, the Host runs on the processor, and the Controller runs on the Bluetooth module; or, both the Host and the Controller run on the Bluetooth chip 1530.

In addition, those skilled in the art can understand that the structure of the electronic device 1500 shown in the above figures does not constitute a limitation on the electronic device, and the electronic device may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently. For example, the electronic device 1500 also includes a display screen, a sensor, a speaker, a microphone, a power supply, and other components, which will not be described in detail here.

In an exemplary embodiment of the present application, a computer-readable storage medium is further provided, wherein at least one program is stored in the computer-readable storage medium, and the at least one program is loaded and executed by the processor to implement the information indication method of Bluetooth communication provided by the above-mentioned various method embodiments.

In an exemplary embodiment of the present application, a chip is also provided, which includes a programmable logic circuit and/or program instructions. When the chip runs on a device, it is used to implement the Bluetooth communication information indication method provided by the above-mentioned various method embodiments.

In an exemplary embodiment of the present application, a computer program product is further provided. When the computer program product is executed on a processor of a computer device, the computer device executes the above-mentioned information indication method for Bluetooth communication.

In an exemplary embodiment of the present application, a computer program is further provided. The computer program includes computer instructions. A processor of a computer device executes the computer instructions so that the computer device executes the information indication method of Bluetooth communication provided by the above-mentioned various method embodiments.

Those skilled in the art should be aware that in one or more of the above examples, the functions described in the embodiments of the present application can be implemented with hardware, software, firmware, or any combination thereof. When implemented using software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or codes on a computer-readable medium. Computer-readable media include computer storage media and communication media, wherein the communication media include any media that facilitates the transmission of a computer program from one place to another. The storage medium can be any available medium that a general or special-purpose computer can access.

The above description is only an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

A method for indicating information in Bluetooth communication, characterized in that the method is executed by a first Bluetooth device, and the method comprises:

Sending a current Bluetooth packet, wherein the current Bluetooth packet carries recommended rate indication information;

The recommended rate indication information is used to recommend a sending rate of a subsequent Bluetooth packet, where the subsequent Bluetooth packet is at least one Bluetooth packet sent by the second Bluetooth device to the first Bluetooth device at a future time.
The method according to claim 1, characterized in that the transmission rate corresponds to a first coding modulation scheme;

The recommended rate indication information is used to recommend a first coding and modulation mode of the subsequent Bluetooth packet.
The method according to claim 1 or 2, characterized in that before sending the current Bluetooth packet, the method further comprises:

receiving a previous Bluetooth packet, where the previous Bluetooth packet is a Bluetooth packet sent by the second Bluetooth device to the first Bluetooth device;

The current Bluetooth packet is a Bluetooth feedback packet corresponding to the previous Bluetooth packet, or the current Bluetooth packet carries ACK feedback information or NACK feedback information corresponding to the previous Bluetooth packet.
The method according to any one of claims 1 to 3, characterized in that the recommended rate indication information is determined based on first signal-to-noise ratio information when the first Bluetooth device receives the first Bluetooth signal;

The first Bluetooth signal is a wireless signal used to transmit the previous Bluetooth packet.
The method according to any one of claims 1 to 4, characterized in that the recommended rate indication information is encapsulated in a control field of the current Bluetooth packet.
The method according to any one of claims 1 to 5, characterized in that the current Bluetooth packet also carries interference indication information, and the interference indication information is used to indicate the interference situation of the target frequency point;

The target frequency is the sending frequency of the previous Bluetooth packet.
The method according to claim 6, wherein the interference condition of the target frequency point includes one of the following:

There are interferences;

No interference;

unknown.
The method according to claim 6 or 7 is characterized in that the interference indication information is determined based on the received in-band RSSI and the received out-of-band RSSI.
The method according to claim 8 is characterized in that the interference indication information is determined based on the ratio of the received in-band RSSI and the received out-of-band RSSI.
The method according to any one of claims 6 to 9, characterized in that the interference indication information is encapsulated in a control field of the current Bluetooth packet.
A method for indicating information in Bluetooth communication, characterized in that the method is executed by a first Bluetooth device, and the method comprises:

Sending a current Bluetooth packet, where the current Bluetooth packet carries interference indication information, where the interference indication information is used to indicate the interference situation of the target frequency point;

The target frequency is a sending frequency of a previous Bluetooth packet, and the previous Bluetooth packet is a Bluetooth packet sent by a second Bluetooth device to the first Bluetooth device.
The method according to claim 11, characterized in that before sending the current Bluetooth packet, the method further comprises:

receiving the previous Bluetooth packet;

The current Bluetooth packet is a Bluetooth feedback packet corresponding to the previous Bluetooth packet, or the current Bluetooth packet carries ACK feedback information or NACK feedback information corresponding to the previous Bluetooth packet.
The method according to claim 11 or 12, characterized in that the interference condition of the target frequency point includes one of the following:

There are interferences;

No interference;

unknown.
The method according to any one of claims 11 to 13 is characterized in that the interference indication information is determined based on a received signal strength indication RSSI in a receiving band and a received signal strength indication RSSI out of a receiving band.
The method according to claim 14 is characterized in that the interference indication information is determined based on the ratio of the received in-band RSSI and the received out-of-band RSSI.
The method according to any one of claims 11 to 15, characterized in that the interference indication information is encapsulated in a control field of the current Bluetooth packet.
The method according to any one of claims 11 to 16 is characterized in that the current Bluetooth packet also carries recommended rate indication information, and the recommended rate indication information is used to recommend the sending rate of subsequent Bluetooth packets, and the subsequent Bluetooth packet is at least one Bluetooth packet sent by the second Bluetooth device to the first Bluetooth device at a future time.
The method according to claim 17, characterized in that the transmission rate corresponds to a first coding modulation scheme;

The recommended rate indication information is used to recommend a first coding and modulation mode of the subsequent Bluetooth packet.
The method according to claim 17 or 18, characterized in that the recommended rate indication information is determined based on first signal-to-noise ratio information when the first Bluetooth device receives the first Bluetooth signal;

The first Bluetooth signal is a wireless signal used to transmit the previous Bluetooth packet.
The method according to any one of claims 17 to 19, characterized in that the recommended rate indication information is encapsulated in a control field of the current Bluetooth packet.
A method for indicating information in Bluetooth communication, characterized in that the method is executed by a second Bluetooth device, and the method comprises:

receiving a current Bluetooth packet, wherein the current Bluetooth packet carries recommended rate indication information;

The recommended rate indication information is used to recommend a sending rate of a subsequent Bluetooth packet, where the subsequent Bluetooth packet is at least one Bluetooth packet sent by the second Bluetooth device to the first Bluetooth device at a future time.
The method according to claim 21, characterized in that the transmission rate corresponds to a first coding modulation scheme;

The recommended rate indication information is used to recommend a first coding and modulation mode of the subsequent Bluetooth packet.
The method according to claim 21 or 22, characterized in that before receiving the current Bluetooth packet, the method further comprises:

Sending a previous Bluetooth packet, where the previous Bluetooth packet is a Bluetooth packet sent by the second Bluetooth device to the first Bluetooth device;

The current Bluetooth packet is a Bluetooth feedback packet corresponding to the previous Bluetooth packet, or the current Bluetooth packet carries ACK feedback information or NACK feedback information corresponding to the previous Bluetooth packet.
The method according to any one of claims 21 to 23, characterized in that the recommended rate indication information is determined based on first signal-to-noise ratio information when the first Bluetooth device receives the first Bluetooth signal;

The first Bluetooth signal is a wireless signal used to transmit the previous Bluetooth packet.
The method according to any one of claims 21 to 24 is characterized in that the recommended rate indication information is encapsulated in a control field of the current Bluetooth packet.
The method according to any one of claims 21 to 25, characterized in that the current Bluetooth packet also carries interference indication information, and the interference indication information is used to indicate the interference situation of the target frequency point;

The target frequency is the sending frequency of the previous Bluetooth packet.
The method according to claim 26, wherein the interference condition of the target frequency point includes one of the following:

There are interferences;

No interference;

unknown.
The method according to claim 26 or 27 is characterized in that the interference indication information is determined based on the received in-band RSSI and the received out-of-band RSSI.
The method according to claim 28 is characterized in that the interference indication information is determined based on the ratio of the received in-band RSSI and the received out-of-band RSSI.
The method according to any one of claims 26 to 29 is characterized in that the interference indication information is encapsulated in a control field of the current Bluetooth packet.
A method for indicating information in Bluetooth communication, characterized in that the method is executed by a second Bluetooth device, and the method comprises:

receiving a current Bluetooth packet, wherein the current Bluetooth packet carries interference indication information, and the interference indication information is used to indicate interference conditions of a target frequency point;

The target frequency is a sending frequency of a previous Bluetooth packet, and the previous Bluetooth packet is a Bluetooth packet sent by the second Bluetooth device to the first Bluetooth device.
The method according to claim 31, characterized in that before sending the current Bluetooth packet, the method further comprises:

Sending the previous Bluetooth packet;

The current Bluetooth packet is a Bluetooth feedback packet corresponding to the previous Bluetooth packet, or the current Bluetooth packet carries ACK feedback information or NACK feedback information corresponding to the previous Bluetooth packet.
The method according to claim 31 or 32, characterized in that the interference condition of the target frequency point includes one of the following:

There are interferences;

No interference;

unknown.
The method according to any one of claims 31 to 33 is characterized in that the interference indication information is determined based on a received signal strength indication RSSI in a receiving band and a received signal strength indication RSSI out of a receiving band.
The method according to claim 34 is characterized in that the interference indication information is determined based on the ratio of the received in-band RSSI and the received out-of-band RSSI.
The method according to any one of claims 31 to 35 is characterized in that the interference indication information is encapsulated in a control field of the current Bluetooth packet.
The method according to any one of claims 31 to 36 is characterized in that the current Bluetooth packet also carries recommended rate indication information, and the recommended rate indication information is used to recommend the sending rate of subsequent Bluetooth packets, and the subsequent Bluetooth packet is at least one Bluetooth packet sent by the second Bluetooth device to the first Bluetooth device at a future time.
The method according to claim 37, characterized in that the transmission rate corresponds to a first coding modulation scheme;

The recommended rate indication information is used to recommend a first coding and modulation mode of the subsequent Bluetooth packet.
The method according to claim 37 or 38, characterized in that the recommended rate indication information is determined based on first signal-to-noise ratio information when the first Bluetooth device receives the first Bluetooth signal;

The first Bluetooth signal is a wireless signal used to transmit the previous Bluetooth packet.
The method according to any one of claims 37 to 39 is characterized in that the recommended rate indication information is encapsulated in a control field of the current Bluetooth packet.
An information indicating device for Bluetooth communication, characterized in that the device comprises:

A first sending module, configured to send a current Bluetooth packet, wherein the current Bluetooth packet carries recommended rate indication information;

The recommended rate indication information is used to recommend a sending rate of a subsequent Bluetooth packet, where the subsequent Bluetooth packet is at least one Bluetooth packet sent by the second Bluetooth device to the first Bluetooth device at a future time.
An information indicating device for Bluetooth communication, characterized in that the device comprises:

A second sending module, used to send a current Bluetooth packet, where the current Bluetooth packet carries interference indication information, where the interference indication information is used to indicate the interference situation of a target frequency point;

The target frequency is a sending frequency of a previous Bluetooth packet, and the previous Bluetooth packet is a Bluetooth packet sent by a second Bluetooth device to the first Bluetooth device.
An information indicating device for Bluetooth communication, characterized in that the device comprises:

A third receiving module, configured to receive a current Bluetooth packet, wherein the current Bluetooth packet carries recommended rate indication information;

The recommended rate indication information is used to recommend a sending rate of a subsequent Bluetooth packet, where the subsequent Bluetooth packet is at least one Bluetooth packet sent by the second Bluetooth device to the first Bluetooth device at a future time.
An information indicating device for Bluetooth communication, characterized in that the device comprises:

A fourth receiving module, used to receive a current Bluetooth packet, where the current Bluetooth packet carries interference indication information, where the interference indication information is used to indicate the interference situation of a target frequency point;

The target frequency is a sending frequency of a previous Bluetooth packet, and the previous Bluetooth packet is a Bluetooth packet sent by the second Bluetooth device to the first Bluetooth device.
An information indicating device for Bluetooth communication, characterized in that the device comprises:

processor;

a transceiver connected to the processor;

a memory for storing executable instructions for the processor;

The processor is configured to load and execute the executable instructions to implement the information indication method for Bluetooth communication as described in any one of claims 1 to 10 or claims 11 to 20 or claims 21 to 30 or claims 31 to 40.
A computer-readable storage medium, characterized in that executable instructions are stored in the readable storage medium, and the executable instructions are loaded and executed by a processor to implement the information indication method of Bluetooth communication as described in any one of claims 1 to 10 or claims 11 to 20 or claims 21 to 30 or claims 31 to 40.
A chip, characterized in that the chip includes a programmable logic circuit or a program, and the chip is used to implement the information indication method of Bluetooth communication as described in any one of claims 1 to 10 or claims 11 to 20 or claims 21 to 30 or claims 31 to 40.
A computer program product, characterized in that the computer program product includes computer instructions, the computer instructions are stored in a computer-readable storage medium, a processor of a 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 information indication method for Bluetooth communication as described in any one of claims 1 to 10 or claims 11 to 20 or claims 21 to 30 or claims 31 to 40.