WO2024082286A1 - Procédé et appareil d'indication d'informations pour communication bluetooth, dispositif et support de stockage - Google Patents

Procédé et appareil d'indication d'informations pour communication bluetooth, dispositif et support de stockage Download PDF

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Publication number
WO2024082286A1
WO2024082286A1 PCT/CN2022/126787 CN2022126787W WO2024082286A1 WO 2024082286 A1 WO2024082286 A1 WO 2024082286A1 CN 2022126787 W CN2022126787 W CN 2022126787W WO 2024082286 A1 WO2024082286 A1 WO 2024082286A1
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Prior art keywords
bluetooth
packet
bluetooth packet
indication information
interference
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PCT/CN2022/126787
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English (en)
Chinese (zh)
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俞忠兴
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哲库科技(上海)有限公司
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Priority to PCT/CN2022/126787 priority Critical patent/WO2024082286A1/fr
Publication of WO2024082286A1 publication Critical patent/WO2024082286A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems

Definitions

  • 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.
  • 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.
  • RSSI received signal strength indicator
  • BLE Bluetooth Low Energy
  • HDT high data throughput
  • 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.
  • a method for indicating information in Bluetooth communication is provided, the method being executed by a first Bluetooth device, the method comprising:
  • 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.
  • a method for indicating information in Bluetooth communication is provided, the method being executed by a first Bluetooth device, the method comprising:
  • 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
  • the previous Bluetooth packet is a Bluetooth packet sent by a second Bluetooth device to the first Bluetooth device.
  • a method for indicating information in Bluetooth communication is provided, the method being executed by a second Bluetooth device, the method comprising:
  • 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.
  • a method for indicating information in Bluetooth communication is provided, the method being executed by a second Bluetooth device, the method comprising:
  • 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
  • the previous Bluetooth packet is a Bluetooth packet sent by the second Bluetooth device to the first Bluetooth device.
  • a Bluetooth communication information indication device comprising:
  • 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.
  • a Bluetooth communication information indication device comprising:
  • 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;
  • the target frequency is a sending frequency of a previous Bluetooth packet
  • the previous Bluetooth packet is a Bluetooth packet sent by a second Bluetooth device to the first Bluetooth device.
  • a Bluetooth communication information indication device comprising:
  • 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.
  • a Bluetooth communication information indication device comprising:
  • 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
  • the previous Bluetooth packet is a Bluetooth packet sent by the second Bluetooth device to the first Bluetooth device.
  • a Bluetooth communication information indication device 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.
  • a computer-readable storage medium 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.
  • a chip 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.
  • a computer program product 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 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • word "if” as used herein may be interpreted as "at the time of” or "when” or "in response to determining”.
  • 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.
  • RSSI Received Signal Strength Indicator
  • BLE Bluetooth Low Energy
  • HDT high data throughput
  • QPSK Quadrature Phase Shift Keying
  • DQPSK Differential Quadrature Reference Phase Shift Keying
  • 8PSK Eight Phase Shift Keying
  • D8PSK Differential Eight Phase-Shift Keying
  • QAM Quadrature Amplitude Modulation
  • CC Convolutional Code
  • CL Convolutional Length
  • BP Bit Puncture
  • SP Symbol Puncture
  • TCM Trellis Coded Modulation.
  • 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.
  • Bluetooth 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.
  • SNR signal-to-noise ratio
  • 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.
  • LLCP Bluetooth Link Layer Control Protocol
  • 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.
  • 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.
  • the first Bluetooth device 101 is a Bluetooth Low Energy (BLE) device.
  • BLE Bluetooth Low Energy
  • 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.
  • 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.
  • the second Bluetooth device 102 is a BLE device.
  • a Bluetooth link is established between a first Bluetooth device 101 and a second Bluetooth device 102 .
  • the first Bluetooth device 101 may be one Bluetooth device or multiple Bluetooth devices
  • 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.
  • 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.
  • AR augmented reality
  • VR virtual reality
  • MR mixed reality
  • XR extended reality
  • BR baffle reality
  • CR cinematic reality
  • DR deceived reality
  • 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.
  • 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.
  • a Bluetooth packet may also be understood as a Bluetooth protocol data unit (PDU).
  • PDU Bluetooth protocol data unit
  • 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.
  • 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.
  • the target frequency is a sending frequency of a previous Bluetooth packet
  • the previous Bluetooth packet is a Bluetooth packet sent by the second Bluetooth device to the first Bluetooth device.
  • a Bluetooth packet may also be understood as a Bluetooth PDU.
  • 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.
  • 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.
  • ACK confirmation response
  • NACK negative confirmation response
  • 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 sending rate of the subsequent Bluetooth packet corresponds to the first coding and modulation mode
  • the recommended rate indication information is used to recommend the first coding and modulation mode of the subsequent Bluetooth packet.
  • 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.
  • the recommended rate indication information is determined by the first Bluetooth device based on SNR information of a previous Bluetooth packet actually received.
  • 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.
  • the recommended rate indication information is encapsulated in a control field of the current Bluetooth packet.
  • the recommended rate indication information is carried in a control field of the current Bluetooth packet.
  • 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.
  • the interference condition of the target frequency point includes one of the following:
  • 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.
  • the interference indication information is determined based on a received in-band RSSI and a received out-of-band RSSI.
  • 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.
  • the interference indication information is determined based on a ratio of a received in-band RSSI and a received out-of-band RSSI.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • the interference indication information is encapsulated in a control field of the current Bluetooth packet.
  • the interference indication information is carried in a control field of the current Bluetooth packet.
  • 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.
  • 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 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.
  • the interference condition of the target frequency point includes one of the following:
  • 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.
  • the interference indication information is determined based on a received in-band RSSI and a received out-of-band RSSI.
  • 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.
  • the interference indication information is determined based on a ratio of a received in-band RSSI and a received out-of-band RSSI.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • the interference indication information is encapsulated in a control field of the current Bluetooth packet.
  • the interference indication information is carried in a control field of the current Bluetooth packet.
  • the current Bluetooth packet also 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 sending rate of the subsequent Bluetooth packet corresponds to the first coding and modulation mode
  • the recommended rate indication information is used to recommend the first coding and modulation mode of the subsequent Bluetooth packet.
  • 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.
  • the recommended rate indication information is determined by the first Bluetooth device based on SNR information of a previous Bluetooth packet actually received.
  • 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.
  • the recommended rate indication information is encapsulated in a control field of the current Bluetooth packet.
  • the recommended rate indication information is carried in a control field of the current Bluetooth packet.
  • 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.
  • 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.
  • 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 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 sending rate of the subsequent Bluetooth packet corresponds to the first coding and modulation mode
  • the recommended rate indication information is used to recommend the first coding and modulation mode of the subsequent Bluetooth packet.
  • the recommended rate indication information is determined based on the SNR information.
  • the recommended rate indication information is determined by the first Bluetooth device based on SNR information of a previous Bluetooth packet actually received.
  • 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.
  • the recommended rate indication information is encapsulated in a control field of the current Bluetooth packet.
  • the recommended rate indication information is carried in a control field of the current Bluetooth packet.
  • 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.
  • the interference condition of the target frequency point includes one of the following:
  • 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.
  • the interference indication information is determined based on a received in-band RSSI and a received out-of-band RSSI.
  • 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.
  • the interference indication information is determined based on a ratio of a received in-band RSSI and a received out-of-band RSSI.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • the interference indication information is encapsulated in a control field of the current Bluetooth packet.
  • the interference indication information is carried in a control field of the current Bluetooth packet.
  • 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.
  • 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.
  • 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 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.
  • the interference condition of the target frequency point includes one of the following:
  • 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.
  • the interference indication information is determined based on a received in-band RSSI and a received out-of-band RSSI.
  • 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.
  • the interference indication information is determined based on a ratio of a received in-band RSSI and a received out-of-band RSSI.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • the interference indication information is encapsulated in a control field of the current Bluetooth packet.
  • the interference indication information is carried in a control field of the current Bluetooth packet.
  • the current Bluetooth packet also 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 sending rate of the subsequent Bluetooth packet corresponds to the first coding and modulation mode
  • the recommended rate indication information is used to recommend the first coding and modulation mode of the subsequent Bluetooth packet.
  • the recommended rate indication information is determined based on the SNR information.
  • the recommended rate indication information is determined by the first Bluetooth device based on SNR information of a previous Bluetooth packet actually received.
  • 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.
  • the recommended rate indication information is encapsulated in a control field of the current Bluetooth packet.
  • the recommended rate indication information is carried in a control field of the current Bluetooth packet.
  • 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.
  • 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
  • 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
  • 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.
  • 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.
  • SYNC preamble and synchronization
  • CTR control
  • PDU header field a payload or a multi-block payload (Multi Blocks Payload, MB-Payload) field
  • CTE constant tone extension
  • 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 26.5 ⁇ s.
  • the training field is used to perform AGC training, etc., and the duration of transmitting the training field is 8.5 ⁇ s.
  • 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.
  • AA access address
  • RI rate indication
  • SN sequence number
  • NESN next expected sequence number
  • CRC cyclic redundancy check
  • the PDU header field includes optional multi-block information (Optional Multi Blocks Information, opt MB-Info).
  • the payload or multi-block payload field occupies 0 to 8191 bytes.
  • 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 ⁇ s.
  • the CTRL field is used to indicate Quadrature Phase Shift Keying (QPSK) 0.5CC digital modulation mode.
  • QPSK Quadrature Phase Shift Keying
  • 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 includes the PDU header field and the payload or multi-block payload field.
  • 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.
  • 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 ⁇ s.
  • the training field is used to perform AGC training, etc., and the duration of transmitting the training field is 8.5 ⁇ s.
  • 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.
  • the PDU header field includes opt MB-Info.
  • the payload or multi-block payload field occupies 0 to 8191 bytes.
  • 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 ⁇ s.
  • the CTRL field is used to indicate Quadrature Phase Shift Keying (QPSK) 0.5CC digital modulation mode.
  • QPSK Quadrature Phase Shift Keying
  • 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.
  • the AA field occupies 32 bits
  • the RI field occupies 3 bits
  • the SN field and the NESN field occupies 2 bits
  • the CRC field occupies 16 bits.
  • 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 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.
  • the sending rate of the subsequent Bluetooth packet corresponds to the first coding and modulation mode
  • the recommended rate indication information is used to recommend the first coding and modulation mode of the subsequent Bluetooth packet.
  • the recommended rate indication information is determined based on the SNR information.
  • 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.
  • 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.
  • the recommended rate indication information is encapsulated in the CTRL field of the current Bluetooth packet.
  • the SRI field occupies 2 bits.
  • 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.
  • the interference condition of the target frequency point includes one of the following:
  • 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.
  • the interference indication information is determined based on a received in-band RSSI and a received out-of-band RSSI.
  • 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.
  • the interference indication information is determined based on a ratio of a received in-band RSSI and a received out-of-band RSSI.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • the interference indication information is encapsulated in the CTRL field of the current Bluetooth packet.
  • 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.
  • the value of the interference indication field 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.
  • the CTRL field of the current Bluetooth packet also includes an SNR field for indicating SNR information.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • the format of the subsequent Bluetooth packet is the same as the format of the current Bluetooth packet.
  • 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.
  • 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;
  • 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 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.
  • 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.
  • 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.
  • the recommended rate indication information is encapsulated in a control field of the current Bluetooth packet.
  • 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.
  • the interference condition of the target frequency point includes one of the following:
  • 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.
  • 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.
  • the interference indication information is encapsulated in a control field of the current Bluetooth packet.
  • 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;
  • the target frequency is a sending frequency of a previous Bluetooth packet
  • the previous Bluetooth packet is a Bluetooth packet sent by a second Bluetooth device to the first Bluetooth device.
  • the apparatus further comprises a second receiving module 1203, configured to receive 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 interference condition of the target frequency point includes one of the following:
  • 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.
  • 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.
  • the interference indication information is encapsulated in a control field of the current Bluetooth packet.
  • 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 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 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;
  • the first Bluetooth signal is a wireless signal used to transmit the previous Bluetooth packet.
  • the recommended rate indication information is encapsulated in a control field of the current Bluetooth packet.
  • 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. 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;
  • 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 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 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;
  • 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 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 first Bluetooth signal is a wireless signal used to transmit the previous Bluetooth packet.
  • the recommended rate indication information is encapsulated in a control field of the current Bluetooth packet.
  • 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.
  • the interference condition of the target frequency point includes one of the following:
  • 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.
  • 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.
  • the interference indication information is encapsulated in a control field of the current Bluetooth packet.
  • 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;
  • the target frequency is a sending frequency of a previous Bluetooth packet
  • the previous Bluetooth packet is a Bluetooth packet sent by the second Bluetooth device to the first Bluetooth device.
  • the apparatus further comprises a fourth sending module 1403, configured to send 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 interference condition of the target frequency point includes one of the following:
  • 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.
  • 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.
  • the interference indication information is encapsulated in a control field of the current Bluetooth packet.
  • 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 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 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 first Bluetooth signal is a wireless signal used to transmit the previous Bluetooth packet.
  • the recommended rate indication information is encapsulated in a control field of the current Bluetooth packet.
  • 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.
  • the device provided in the above embodiment is only illustrated by the division of the above functional modules.
  • 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.
  • 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.
  • 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).
  • DSP Digital Signal Processing
  • FPGA Field-Programmable Gate Array
  • PLA programmable logic array
  • 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.
  • 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).
  • 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 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).
  • 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.
  • 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.
  • 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.
  • 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.
  • a chip which includes a programmable logic circuit and/or program instructions.
  • 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.
  • a computer program product is further provided.
  • 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.
  • 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.
  • 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.

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Abstract

La présente demande se rapporte au domaine technique du Bluetooth et divulgue un procédé et un appareil d'indication d'informations pour une communication Bluetooth, ainsi qu'un dispositif et un support de stockage. Le procédé consiste à : transmettre un paquet Bluetooth actuel, le paquet Bluetooth actuel transportant des informations d'indication de débit recommandé, les informations d'indication de débit recommandé servant à recommander un débit de transmission d'un paquet Bluetooth ultérieur, et le paquet Bluetooth ultérieur étant au moins un paquet Bluetooth transmis par un second dispositif Bluetooth à un premier dispositif Bluetooth à un moment ultérieur. En transportant les informations d'indication de débit recommandé dans le paquet Bluetooth courant transmis par le premier dispositif Bluetooth, le débit de transmission du paquet Bluetooth suivant peut être déterminé avec plus de précision et en temps voulu, de sorte que la communication Bluetooth entre le premier dispositif Bluetooth et le second dispositif Bluetooth présente une stabilité, une précision et une efficacité supérieures.
PCT/CN2022/126787 2022-10-21 2022-10-21 Procédé et appareil d'indication d'informations pour communication bluetooth, dispositif et support de stockage WO2024082286A1 (fr)

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