Bluetooth communication method, device, communication system and storage medium

Abstract

A Bluetooth communication method, a device, a communication system and a storage medium. The method comprises: on the basis of a first channel list, a first device performing Bluetooth communication with a second device, wherein the first channel list comprises at least one first channel and an available state of each first channel, the first channel is a channel in a first frequency band, and the lowest frequency of the first frequency band is greater than or equal to 2.4 GHz. The frequency of a channel used for the Bluetooth communication can be higher than 2.4 GHz, such that a Bluetooth device can use a channel in a higher frequency band to transmit Bluetooth data, thereby effectively improving the quality of the Bluetooth communication.

Description

Bluetooth communication method, device, communication system and storage medium Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to a Bluetooth communication method, device, communication system, and storage medium. Background Art

[0002] Bluetooth communication technology is a short-range wireless communication technology standard developed by the Bluetooth Special Interest Group (Bluetooth SIG). It features low cost, low complexity, and low power consumption. It has been widely deployed and commercialized in various scenarios, including audio transmission, mesh networking, smart homes, and indoor positioning. As Bluetooth technology evolves, it is now necessary to introduce frequency bands beyond the 2.4 GHz band to meet the needs of higher-speed communication.

[0003] Summary of the Invention

[0004] The embodiments of the present disclosure provide a Bluetooth communication method, device, communication system, and storage medium.

[0005] According to a first aspect of an embodiment of the present disclosure, a Bluetooth communication method is provided, the method comprising:

[0006] The first device performs Bluetooth communication with the second device according to the first channel list, where the first channel list includes at least one first channel and the available status of each first channel, where the first channel is a channel of a first frequency band, and the lowest frequency of the first frequency band is greater than or equal to 2.4 GHz.

[0007] According to a second aspect of an embodiment of the present disclosure, a Bluetooth communication method is proposed, the method comprising:

[0008] The second device performs Bluetooth communication with the first device according to the first channel list, where the first channel list includes at least one first channel and the available status of the first channel, where the first channel is a channel of a first frequency band, and the lowest frequency of the first frequency band is greater than or equal to 2.4 GHz.

[0009] According to a third aspect of an embodiment of the present disclosure, a first device is provided, the first device including:

[0010] The transceiver module is used to perform Bluetooth communication with the second device according to the first channel list, wherein the first channel list includes at least one first channel and the available status of the first channel, the first channel is a channel of the first frequency band, and the lowest frequency of the first frequency band is greater than or equal to 2.4 GHz.

[0011] According to a fourth aspect of an embodiment of the present disclosure, a second device is provided, the second device including:

[0012] The transceiver module is used to perform Bluetooth communication with the first device according to the first channel list, the first channel list includes at least one first channel and the available status of the first channel, the first channel is a channel of the first frequency band, and the lowest frequency of the first frequency band is greater than or equal to 2.4 GHz.

[0013] According to a fifth aspect of an embodiment of the present disclosure, a first device is provided, including:

[0014] one or more processors;

[0015] A memory coupled to the one or more processors, the memory comprising executable instructions, which, when executed by the one or more processors, causes the first device to execute the Bluetooth communication method described in the first aspect.

[0016] According to a sixth aspect of an embodiment of the present disclosure, a second device is provided, including:

[0017] one or more processors;

[0018] A memory coupled to the one or more processors, the memory comprising executable instructions, which, when executed by the one or more processors, causes the second device to execute the Bluetooth communication method described in the second aspect.

[0019] According to the seventh aspect of an embodiment of the present disclosure, a communication system is proposed, comprising a first device and a second device, wherein the first device is configured to implement the Bluetooth communication method described in the first aspect, and the second device is configured to implement the Bluetooth communication method described in the second aspect.

[0020] According to an eighth aspect of an embodiment of the present disclosure, a storage medium is proposed, which stores instructions. When the instructions are executed on a communication device, the communication device executes the Bluetooth communication method as described in the first aspect or the second aspect.

[0021] In the above embodiment, the first device can use the first channel of the first frequency band in the first channel list to communicate with the second device via Bluetooth according to the first channel list, so that the frequency of the channel used for Bluetooth communication can be higher than 2.4GHz, so that the Bluetooth device can use the channel of the higher frequency band to transmit Bluetooth data, which can effectively improve the quality of Bluetooth communication. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following drawings required for describing the embodiments are introduced. The following drawings are merely some embodiments of the present disclosure and do not impose specific limitations on the protection scope of the present disclosure.

[0023] FIG1 is an exemplary schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure.

[0024] FIG2 is an exemplary interaction diagram of a Bluetooth communication method provided according to an embodiment of the present disclosure.

[0025] FIG3A is a schematic diagram of an exemplary flow chart of a Bluetooth communication method provided according to an embodiment of the present disclosure.

[0026] FIG3B is a schematic diagram of an exemplary flow chart of a Bluetooth communication method provided according to an embodiment of the present disclosure.

[0027] FIG3C is a schematic diagram of an exemplary flow chart of a Bluetooth communication method provided according to an embodiment of the present disclosure.

[0028] FIG3D is a schematic diagram of an exemplary flow chart of a Bluetooth communication method provided according to an embodiment of the present disclosure.

[0029] FIG4A is a schematic diagram of an exemplary flow chart of a Bluetooth communication method provided according to an embodiment of the present disclosure.

[0030] FIG4B is a schematic diagram of an exemplary flow chart of a Bluetooth communication method provided according to an embodiment of the present disclosure.

[0031] FIG4C is a schematic diagram of an exemplary flow chart of a Bluetooth communication method provided according to an embodiment of the present disclosure.

[0032] FIG5 is an exemplary interaction diagram of a Bluetooth communication method provided according to an embodiment of the present disclosure.

[0033] FIG6A is a schematic diagram of an exemplary flow chart of a Bluetooth communication method provided according to an embodiment of the present disclosure.

[0034] FIG6B is an exemplary schematic diagram of Bluetooth communication provided according to an embodiment of the present disclosure.

[0035] FIG7A is a schematic diagram of an exemplary structure of a terminal provided according to an embodiment of the present disclosure.

[0036] FIG7B is a schematic diagram of an exemplary structure of a network device provided according to an embodiment of the present disclosure.

[0037] FIG8A is a schematic diagram of an exemplary structure of a communication device provided according to an embodiment of the present disclosure.

[0038] FIG8B is a schematic diagram of an exemplary structure of a communication device provided according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0039] The embodiments of the present disclosure provide a Bluetooth communication method, device, communication system, and storage medium.

[0040] In a first aspect, an embodiment of the present disclosure provides a Bluetooth communication method, the method comprising:

[0041] The first device performs Bluetooth communication with the second device according to the first channel list, where the first channel list includes at least one first channel and the available status of each first channel, where the first channel is a channel of a first frequency band, and the lowest frequency of the first frequency band is greater than or equal to 2.4 GHz.

[0042] In the above embodiment, the first device can use the first channel of the first frequency band in the first channel list to perform Bluetooth communication with the second device according to the first channel list, so that the frequency of the channel used for Bluetooth communication can be higher than 2.4GHz, allowing the Bluetooth device to use a higher frequency band channel to transmit Bluetooth data, which can effectively improve the quality of Bluetooth communication.

[0043] In combination with some embodiments of the first aspect, in some embodiments, the first frequency band includes at least one of a 5.1 GHz frequency band and a 5.8 GHz frequency band.

[0044] In the above embodiment, the Bluetooth device can use the 5.1 GHz frequency band and / or the 5.8 GHz frequency band for Bluetooth communication, which can not only avoid interference from other communication modes in the 2.4 GHz frequency band, but also effectively improve the quality of Bluetooth communication.

[0045] In combination with some embodiments of the first aspect, in some embodiments, the available status of the first channel includes at least one of the following: a first status; a second status; a third status; wherein the first status is used to indicate that the first channel can be used for two-way communication between the first device and the second device, the second status is used to indicate that the first channel cannot be used for two-way communication between the first device and the second device, and the third status is used to indicate that the available status of the first channel is unknown.

[0046] In the above embodiment, by setting the above available state, the first device and the second device can more reliably select the first channel for Bluetooth communication based on the first channel list, which can further improve the quality of Bluetooth communication.

[0047] In combination with some embodiments of the first aspect, in some embodiments, the first device performs Bluetooth communication with the second device according to the first channel list, including: the first device preferentially uses the first channel whose available state is the first state to send Bluetooth data to the second device; or, the first device does not use the first channel whose available state is the second state to send Bluetooth data to the second device.

[0048] In the above embodiment, the first device can preferentially use a higher frequency channel with better quality to send Bluetooth data to the second device, and can avoid using a channel with poor channel quality to send Bluetooth data to the second device, which can effectively ensure the transmission reliability of Bluetooth data.

[0049] In conjunction with some embodiments of the first aspect, in some embodiments, the first device performing Bluetooth communication with the second device according to the first channel list includes:

[0050] The first device uses the first channel in the first channel list whose available state is the first state and / or the third state to perform adaptive frequency hopping communication with the second device.

[0051] In the above embodiment, the first device can use the first channel in the first state and / or the third state to perform adaptive frequency hopping communication with the second device, which not only ensures the reliability of Bluetooth communication, but also can further detect the channels in the third state to determine the available status of these channels.

[0052] In combination with some embodiments of the first aspect, in some embodiments, the first device performs Bluetooth communication with the second device according to the first channel list, including: the first device uses the first channel to perform Bluetooth communication with the second device, and determines the available status of the first channel.

[0053] In conjunction with some embodiments of the first aspect, in some embodiments, the first device uses the first channel to perform Bluetooth communication with the second device, and determines the availability status of the first channel, including:

[0054] The first device uses the first channel to send a data message to the second device; the first device determines that a response message sent by the second device is received, and sets the available state of the first channel to the first state; the first device determines that a response message sent by the second device is not received, and sets the available state of the first channel to the second state.

[0055] In the above embodiment, the first device can accurately determine whether the first channel can be used for bidirectional communication between the first device and the second device by judging whether the data message is successfully sent or received.

[0056] In combination with some embodiments of the first aspect, in some embodiments, the first device determines that it has not received the response message sent by the second device, including at least one of the following: the first device determines that the sending of the data message is successful but cannot correctly receive the response message; the first device determines that the sending of the data message fails.

[0057] In conjunction with some embodiments of the first aspect, in some embodiments, the first device uses the first channel to perform Bluetooth communication with the second device, and determines the availability status of the first channel, including:

[0058] The first device performs energy detection on the first channel to determine channel interference of the first channel;

[0059] The first device determines that the channel interference is greater than the preset interference threshold, and sets the available state of the first channel to a second state.

[0060] In the above embodiment, the first device can also perform energy detection on the first channel to determine the channel interference of the first channel, and set the first channel with excessive channel interference to the second state, which can effectively avoid the excessive interference in the channel for Bluetooth communication between the first device and the second device, resulting in a decrease in the quality of Bluetooth communication.

[0061] In combination with some embodiments of the first aspect, in some embodiments, the first device uses the first channel to send a data packet to the second device, including: the first device determines that the channel interference is less than or equal to a preset interference threshold, and uses the first channel to send the data packet to the second device.

[0062] In the above embodiment, the first channel may be used to send data packets to the second device only when the channel interference is low, which can effectively reduce resource overhead and power consumption of the first device.

[0063] In conjunction with some embodiments of the first aspect, in some embodiments, the first device uses the first channel to perform Bluetooth communication with the second device, and determines the availability status of the first channel, including:

[0064] Determining, by the first device, an equivalent occupancy rate corresponding to the first frequency band;

[0065] The first device determines that the equivalent occupancy rate is less than or equal to a preset occupancy threshold, uses the first channel to perform Bluetooth communication with the second device, and determines an available status of the first channel.

[0066] In conjunction with some embodiments of the first aspect, in some embodiments, the method includes:

[0067] The first device determines that the equivalent occupancy rate is greater than the preset occupancy threshold, does not send data packets in the current connection interval, and redetermines the equivalent occupancy rate in the next connection interval.

[0068] In combination with some embodiments of the first aspect, in some embodiments, the preset occupancy threshold is less than or equal to 10%.

[0069] In the above embodiment, the first device can count the corresponding equivalent occupancy rate before conducting Bluetooth communication in a higher frequency band, and determine whether to conduct Bluetooth communication with the second device in the current connection interval based on the equivalent occupancy rate, so that the Bluetooth communication based on the higher frequency band can be more in line with relevant regulations and ensure that it will not interfere with other communication methods.

[0070] In conjunction with some embodiments of the first aspect, in some embodiments, the method includes:

[0071] The first device sends first information to the second device, where the first information is used to indicate the first channel list.

[0072] In the above embodiment, the first device can send the first information to the second device so that the first device and the second device can reach a consensus on the first channel list, thereby ensuring that the Bluetooth communication between the first device and the second device based on the first channel list is more reliable.

[0073] In a second aspect, an embodiment of the present disclosure provides a Bluetooth communication method, the method comprising:

[0074] The second device performs Bluetooth communication with the first device according to the first channel list, where the first channel list includes at least one first channel and the available status of the first channel, where the first channel is a channel of a first frequency band, and the lowest frequency of the first frequency band is greater than or equal to 2.4 GHz.

[0075] In combination with some embodiments of the second aspect, in some embodiments, the first frequency band includes at least one of a 5.1 GHz frequency band and a 5.8 GHz frequency band.

[0076] In conjunction with some embodiments of the second aspect, in some embodiments, the available state of the first channel includes at least one of the following: a first state; a second state; a third state;

[0077] The first state is used to indicate that the first channel can be used for bidirectional communication between the first device and the second device, the second state is used to indicate that the first channel cannot be used for bidirectional communication between the first device and the second device, and the third state is used to indicate that the availability status of the first channel is unknown.

[0078] In conjunction with some embodiments of the second aspect, in some embodiments, the second device performs Bluetooth communication with the first device according to the first channel list, including:

[0079] The second device preferentially uses the first channel whose available state is the first state to receive the Bluetooth data sent by the first device; or

[0080] The second device does not use the first channel whose available state is the second state to receive the Bluetooth data sent by the first device.

[0081] In conjunction with some embodiments of the second aspect, in some embodiments, the second device performs Bluetooth communication with the first device according to the first channel list, including:

[0082] The second device uses the first channel in the first channel list whose available state is the first state and / or the third state to perform adaptive frequency hopping communication with the first device.

[0083] In conjunction with some embodiments of the second aspect, in some embodiments, the method includes:

[0084] The second device receives first information sent by the first device, where the first information is used to indicate the first channel list.

[0085] In a third aspect, an embodiment of the present disclosure provides a first device, the first device comprising:

[0086] The transceiver module is used to perform Bluetooth communication with the second device according to the first channel list, wherein the first channel list includes at least one first channel and the available status of the first channel, the first channel is a channel of the first frequency band, and the lowest frequency of the first frequency band is greater than or equal to 2.4 GHz.

[0087] In a fourth aspect, an embodiment of the present disclosure provides a second device, the second device including:

[0088] The transceiver module is used to perform Bluetooth communication with the first device according to the first channel list, the first channel list includes at least one first channel and the available status of the first channel, the first channel is a channel of the first frequency band, and the lowest frequency of the first frequency band is greater than or equal to 2.4 GHz.

[0089] In a fifth aspect, an embodiment of the present disclosure proposes a first device comprising: one or more processors; a memory coupled to the one or more processors, the memory comprising executable instructions, which, when executed by the one or more processors, enables the first device to execute the Bluetooth communication method in the first aspect.

[0090] In the sixth aspect, an embodiment of the present disclosure proposes a second device, comprising: one or more processors; a memory coupled to the one or more processors, the memory comprising executable instructions, which, when executed by the one or more processors, enables the second device to execute the Bluetooth communication method in the second aspect.

[0091] In the seventh aspect, an embodiment of the present disclosure proposes a communication system, which includes: a first device and a second device; wherein the first device is configured to execute the method described in the optional implementation manner of the first aspect, and the second device is configured to execute the method described in the optional implementation manner of the second aspect.

[0092] In an eighth aspect, an embodiment of the present disclosure proposes a storage medium, wherein the storage medium stores instructions. When the instructions are executed on a communication device, the communication device executes the method described in the optional implementation of the first and second aspects.

[0093] In a ninth aspect, an embodiment of the present disclosure proposes a program product. When the program product is executed by a communication device, the communication device executes the method described in the optional implementation of the first and second aspects.

[0094] In a tenth aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the method described in the optional implementation of the first and second aspects.

[0095] In an eleventh aspect, an embodiment of the present disclosure provides a chip or a chip system, wherein the chip or chip system includes a processing circuit configured to execute the method described in the optional implementation of the first and second aspects above.

[0096] It is understandable that the first device, the second device, the communication system, the storage medium, the program product, the computer program, the chip, or the chip system described above are all used to perform the method proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding methods and will not be repeated here.

[0097] The embodiments of the present disclosure provide a communication method, a first device, a second device, a communication system, and a storage medium. In some embodiments, the terms "Bluetooth communication method" and "information processing method" and "data transmission method" and "communication method" are interchangeable; the terms "Bluetooth communication device" and "information processing device" and "data transmission device" and "communication device" are interchangeable; and the terms "communication system" and "Bluetooth communication system" are interchangeable.

[0098] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0099] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0100] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0101] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0102] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0103] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0104] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.

[0105] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0106] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

[0107] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0108] In some embodiments, terms such as "time / frequency" and "time / frequency domain" refer to the time domain and / or the frequency domain.

[0109] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0110] In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0111] In some embodiments, devices, etc. can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. Terms such as "device", "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", and "subject" can be used interchangeably.

[0112] In some embodiments, "network" can be interpreted as devices included in the network (for example, a first device, a second device, an access network device, a core network device, etc.).

[0113] In some embodiments, the terms "access network device (AN device)", "radio access network device (RAN device)", "base station (BS)", "radio base station" "fixed station", "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission / reception point (TRP)" "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)" and the like may be used interchangeably.

[0114] In some embodiments, the terms "first device", "second device", "terminal", "terminal device", "user equipment (UE)", "user terminal", "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc. can be used interchangeably.

[0115] In some embodiments, the access network device, the core network device, or the network device can be replaced by a terminal. For example, the various embodiments of the present disclosure can also be applied to a structure in which the communication between the access network device, the core network device, or the network device and the terminal is replaced by communication between multiple terminals (for example, device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, it is also possible to set the structure in which the terminal has all or part of the functions of the access network device. In addition, terms such as "uplink" and "downlink" can also be replaced by terms corresponding to communication between terminals (for example, "side"). For example, uplink channels, downlink channels, etc. can be replaced by side channels, and uplinks, downlinks, etc. can be replaced by side links.

[0116] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, the core network device, or the network device may have a structure that has all or part of the functions of the terminal.

[0117] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0118] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0119] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0120] FIG1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure (a system diagram including only the subjects related to the invention point and their important counterparts, and the number of subjects corresponds to the number of subjects involved in the invention point).

[0121] As shown in Figure 1, a communication system 100 includes a first device 101 and a second device 102. In some embodiments, the first device 101 and the second device 102 can both be devices capable of Bluetooth communication. In some embodiments, the first device 101 can be provided as a central device in Bluetooth communication, and the second device 102 can be provided as a peripheral device in Bluetooth communication.

[0122] It's worth noting that two devices interconnected via Bluetooth technology can be divided into two roles: central and peripheral. The central device determines the specific frequency bands and channels, as well as the modulation and demodulation parameters, used by both parties. Typically, the central device supports multi-mode communication, meaning it can switch between Wi-Fi and Bluetooth modes using time-division multiplexing. For example, a smartphone can have both a Bluetooth module and a Wi-Fi module, switching between them using time-division multiplexing.

[0123] In some embodiments, the first device 101 and the second device 102 can be any one of a terminal, an access network device, and a core network device. For example, the first device 101 can be a smartphone, and the first device 101 can be connected to a device such as a headset, a bracelet, a watch, glasses, a tablet computer, a laptop computer, a temperature and humidity sensor, a medical sensor, a light bulb, a socket, a switch, etc. via Bluetooth. The second device 102 can be any one of these devices. After the first device 101 and the second device 102 establish a connection, the two parties can realize the transmission of audio data or other types of data, query and read the status value of the sensor, adjust the device mode or other setting parameters, etc.

[0124] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.

[0125] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1 , or a portion thereof, but are not limited thereto. The entities shown in FIG1 are illustrative only. The communication system may include all or part of the entities shown in FIG1 , or may include other entities outside of FIG1 . The number and form of the entities are arbitrary, and the entities may be physical or virtual. The connection relationships between the entities are illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0126] The embodiments of the present disclosure may be applied to Bluetooth (registered trademark)), Star Flash system, Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X), systems utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, multiple systems may be combined (for example, a combination of Bluetooth, Starlink, LTE, LTE-A, and 5G).

[0127] In some embodiments, in Bluetooth communication, in order to avoid spectrum interference in the 2.4 GHz band, the communication band may be extended to higher frequency bands, such as the 5.1 GHz and / or 5.8 GHz bands.

[0128] In some embodiments, the listen before talk (LBT) channel access mechanism refers to a mechanism in which a clear channel assessment (CCA) operation is performed before a Bluetooth device transmits data to determine whether the current channel is occupied by other devices. If the current channel is occupied, the Bluetooth device selects another unoccupied channel for data transmission. To avoid interference during the transmission process, the Bluetooth device will continue to monitor the channel during the data transmission process. If interference is detected, the Bluetooth device will immediately terminate the data transmission and perform channel detection. If another unoccupied channel is detected, it will switch to that channel to ensure the reliability of data transmission.

[0129] However, when the LBT mechanism faces interference from other communication technologies in higher frequency bands, it will stop data transmission after detecting channel occupancy until an idle channel is detected. Since the channel bandwidth of Bluetooth communication technology is only 2MHz, the efficiency of idle channel detection in higher frequency bands is low, which will seriously affect the rate, latency and reliability of Bluetooth communication in higher frequency bands.

[0130] In some embodiments, channel access to a higher frequency band can be achieved with the assistance of a WiFi module. However, this requires both the master device and the slave device to support WiFi, which places higher demands on the device cost.

[0131] In some embodiments, the Bluetooth device can have the central device select and determine the frequency band and specific channel for communication, and use an adaptive frequency hopping (AFH) mechanism on the selected channel list to avoid interference.

[0132] In some embodiments, when communicating in higher frequency bands, the Bluetooth Central device needs to design a channel access mechanism (Channel Access Mechanism) that simultaneously meets: relevant requirements, such as wireless short-range communication regulations formulated by radio management agencies in various countries, involving power, channel occupancy time and other requirements; and achieve coexistence with other communication devices in the same frequency band, such as IEEE 802.11 / Wi-Fi devices, SparkLink devices, etc.

[0133] FIG2 is an interactive diagram of a Bluetooth communication method according to an embodiment of the present disclosure. As shown in FIG2 , the embodiment of the present disclosure relates to a Bluetooth communication method, which includes:

[0134] Step S2101: The first device determines an equivalent occupancy rate corresponding to a first frequency band.

[0135] In some embodiments, the lowest frequency of the first frequency band is greater than or equal to 2.4 GHz.

[0136] In some embodiments, the first frequency band includes at least one of a 5.1 GHz band and a 5.8 GHz band. For example, the first frequency band may be a 5.1 GHz band, a 5.8 GHz band, or both. The 5.1 GHz band may be a 5150-5350 MHz band with a total bandwidth of 200 MHz, and the 5.8 GHz band may be a 5725-5850 MHz band with a total bandwidth of 125 MHz.

[0137] In some embodiments, the first frequency band may also include a 2.4 GHz frequency band or a 6 GHz frequency band, etc., which is not limited in the embodiments of the present disclosure. The 2.4 GHz frequency band may refer to a frequency band of 2400-2483.5 MHz, which has a total bandwidth of 83.5 MHz.

[0138] In some embodiments, the equivalent occupancy rate is used to indicate the comprehensive utilization rate of power and duty cycle of a device. Alternatively, the equivalent occupancy rate corresponding to the first frequency band can be used to indicate the comprehensive utilization rate of power and duty cycle of the first device in the first frequency band.

[0139] In some embodiments, the first device determines the equivalent occupancy rate according to the equivalent isotropically radiated power of the first frequency band, the equivalent isotropically radiated power limit of the first frequency band, and a duty cycle of the first device.

[0140] In some embodiments, the equivalent occupancy corresponding to the first frequency band is determined according to the following formula: Among them, P limit (mW) is the equivalent isotropic radiated power limit corresponding to the first frequency band, in mW, P e.i.r.p (mW) is the equivalent isotropically radiated power (EIRP) of the first device in the first frequency band, measured in mW. DC is the duty cycle of the first device. EU is the equivalent occupancy rate (EIRP) of the first device in the first frequency band. The EIRP limit for the first frequency band may be a preset value or a pre-agreed power value according to a protocol or standard, and is not limited in the present disclosure.

[0141] In some embodiments, the first device determines that the equivalent occupancy rate is less than or equal to a preset occupancy threshold, and uses the first channel in the first frequency band to communicate with the second device via Bluetooth. Optionally, the first device determines that the equivalent occupancy rate is less than or equal to the preset occupancy rate threshold, and executes step S2102 and subsequent steps.

[0142] In some embodiments, the first device may determine an equivalent occupancy rate corresponding to the first frequency band of the first device in each connection interval.

[0143] In some embodiments, the first device determines that the equivalent occupancy rate of the first frequency band is greater than a preset occupancy threshold, and does not perform steps S2102 to S2107 or some of the steps S2102 to S2107. Alternatively, the first device determines that the equivalent occupancy rate of the first frequency band is less than or equal to the preset occupancy threshold, and performs at least one of steps S2102 to S2107. For example, the first device may use the first channel of the first frequency band to send a data packet to the second device and receive a response packet.

[0144] In some embodiments, the first device determines that the equivalent occupancy rate corresponding to the first frequency band is greater than a preset occupancy threshold, and does not use the channel of the first frequency band (such as the first channel) to communicate with the second device via Bluetooth. Alternatively, the first device determines that the equivalent occupancy rate is greater than a preset occupancy threshold, and does not send data packets during this connection interval. Alternatively, the first device determines that the equivalent occupancy rate is greater than a preset occupancy threshold, and does not use the channel of the first frequency band to send data packets during this connection interval.

[0145] In some embodiments, the first device determines that the equivalent occupancy rate is greater than a preset occupancy threshold, and redetermines the equivalent occupancy rate in the next connection interval. Optionally, the first device determines that the equivalent occupancy rate is greater than the preset occupancy threshold, does not send data packets in the current connection interval, and redetermines the equivalent occupancy rate in the next connection interval, for example, returning to step S2101.

[0146] In some embodiments, the preset occupancy threshold is less than or equal to 10%. For example, the preset occupancy threshold can be set to 10%, or 8%, etc. The lower the value of the preset occupancy threshold, the less interference with other wireless communications in the same frequency band when the first device performs subsequent steps.

[0147] Step S2102: The first device performs energy detection on the first channel.

[0148] In some embodiments, the first device may maintain one or more channel lists, wherein the first device may perform Bluetooth communication with the second device based on the one or more channel lists. Optionally, the first device may synchronize the one or more channel lists with the second device through step S2105 or other methods, so that both the first device and the second device can perform Bluetooth communication based on the channel lists.

[0149] In some embodiments, the channel list may also be referred to as an "idle channel list", "available channel list", "channel map", "channel mapping information", etc., and the embodiments of the present disclosure do not limit its name.

[0150] In some embodiments, the first device maintains at least a first channel list, the first channel list including at least one first channel and an availability status of the first channel, wherein the first channel is a channel in a first frequency band. Optionally, the availability status can be used to indicate whether the corresponding first channel is idle.

[0151] The first channel included in the first channel list may specifically be a channel index of the first channel or a frequency of the first channel. For example, the first channel list may include N channel indices of the first channels and an available status associated with each channel index. For example, the first channel list may include channel 1 and an available status corresponding to channel 1, channel 2 and an available status corresponding to channel 2, and so on, where channel 1 and channel 2 are both channels of the first frequency band.

[0152] It can be understood that the number of first channels may be equal to the number of channels in the first frequency band, that is, the first channel list may include indexes corresponding to all channels in the first frequency band and the available status corresponding to each channel index.

[0153] In some embodiments, the first channel list may be a channel list corresponding to the first frequency band, wherein each channel is a channel of the first frequency band. For example, if the first frequency band is the 5.1 GHz band, then each channel in the first channel list is a channel of the 5.1 GHz band. Alternatively, the first channel list may further include channels of other frequency bands and their corresponding availability statuses. For example, if the first frequency band is the 5.1 GHz band, the first channel list may include channels of the 2.4 GHz band and their corresponding channel availability statuses in addition to the channels of the 5.1 GHz band and their corresponding availability statuses.

[0154] Specifically, the first channel list may only include channels in one frequency band (such as the first frequency band) and the corresponding available status, such as channels in the 5.1GHz frequency band and / or the 5.8GHz frequency band and the corresponding available status, that is, the first device may maintain a channel list for each frequency band, and the first channel list may be a channel list among multiple channel lists maintained by the first device (such as the channel list corresponding to the 2.4GHz frequency band and the first channel list corresponding to the first frequency band). Alternatively, the first channel list may include channels in one or more frequency bands (such as the first frequency band and other frequency bands) and the corresponding available status, including at least one channel in the 5.1GHz frequency band or the 5.8GHz frequency band and the corresponding available status. That is, the first device may only maintain one channel list, and the channel list includes channels in one or more frequency bands and the corresponding available status. The embodiments of the present disclosure are not limited to this.

[0155] In some embodiments, the available state of the first channel may include at least one of the following: a first state; a second state; a third state.

[0156] Optionally, the first state is used to indicate that the first channel can be used for bidirectional communication between the first device and the second device, or that the first channel is idle. Optionally, the second state is used to indicate that the first channel cannot be used for bidirectional communication between the first device and the second device, or that the first channel is not idle. Optionally, the third state is used to indicate that the availability status of the first channel is unknown, or that the first device is not yet sure whether the first channel is idle.

[0157] For example, if the first channel includes channel 1, channel 2 and channel 3, if the available status of channel 1 is the first status, it means that channel 1 can be used for two-way communication between the first device and the second device; if the available status of channel 2 is the second status, it means that channel 2 cannot be used for two-way communication between the first device and the second device within a certain period of time; if the available status of channel 3 is the third status, it means that the first device has not yet detected channel 3, such as step S2102 and subsequent steps have not yet been executed for channel 3, or the first device cannot determine the available status of channel 3.

[0158] In some embodiments, the available state of the first channel in the first channel list may be initially set to the third state, and the first device may update and set the available state of the first channel in the first channel list by executing one or more of steps S2102 to S2104. Optionally, the available state of the first channel may include only the first state and the second state, and the available state of the first channel in the first channel list may be initially set to the first state, that is, the first channel may be used for two-way communication between the first device and the second device by default, and in subsequent communication processes, the first channel that cannot be used for two-way communication between the first device and the second device is updated to the second state to improve the reliability of Bluetooth communication.

[0159] In some embodiments, the first device performs energy detection on only one first channel within a connection interval, where the first channel may be any first channel in the first channel list. Alternatively, the first device performs energy detection on each first channel (e.g., N first channels) in the first channel list within multiple connection intervals (e.g., N connection intervals). Alternatively, the first device performs energy detection on each first channel in the first channel list whose available state is not the second state within multiple connection intervals.

[0160] In some embodiments, the first device may perform energy detection on each first channel in sequence based on the index size of each first channel in the first channel list. Alternatively, the first device may perform energy detection on each first channel in sequence based on the index size and availability status of each first channel in the first channel list.

[0161] For example, the first device may select the first channel with the smallest index among the first channels whose available states are the first state or the third state for energy detection within the current connection interval, and select the first channel with the second smallest index among the first channels whose available states are the first state or the third state for energy detection within the next connection interval.

[0162] In some embodiments, the first device may perform energy detection on the first channel by detecting the level of the signal of the first channel. For example, the first device detects the level of the channel of the first channel and determines the corresponding channel interference. Optionally, the higher the level of the channel, the stronger the corresponding channel interference. For example, if the first device detects that the signal level of the first channel is higher than a preset level threshold, it can be determined that the channel interference of the first channel is greater than the preset interference threshold. Optionally, the preset level threshold can be Among them, P out is the equivalent isotropic radiated power of the first channel, in mW.

[0163] In some embodiments, the first device determines that the channel interference of the first channel is less than or equal to a preset interference threshold, and uses the first channel to send the data message to the second device. Optionally, the first device determines that the channel interference of the first channel is less than or equal to the preset interference threshold, and performs step S2103 and subsequent steps.

[0164] In some embodiments, the first device determines that channel interference of the first channel is greater than a preset interference threshold, and sets the available state of the first channel to the second state.

[0165] Optionally, after the first device sets the available state of the first channel to the second state, step S2103 and subsequent steps may not be performed in the current connection interval, and energy detection may be performed on another first channel in the next connection interval.

[0166] Optionally, after the first device sets the available state of the first channel to the second state, step S2103 and subsequent steps may still be performed to further determine the available state of the first channel.

[0167] In some embodiments, step S2102 is optional, and the first device may directly execute step S2103 and subsequent steps to determine the availability status of the first channel without performing energy detection on the first channel.

[0168] Step S2103: The first device sends a data message to the second device using the first channel.

[0169] In some embodiments, the data message is used to detect the availability of the first channel. Optionally, the data message is used to detect whether the first channel is idle. Optionally, the data message may be a Bluetooth data frame. Optionally, the data message may include Bluetooth data.

[0170] In some embodiments, the first device may use only one first channel to send data packets to the second device within a connection interval. Alternatively, the first device may use multiple first channels (e.g., N first channels) in the first channel list to send data packets to the second device within multiple connection intervals (e.g., N connection intervals).

[0171] In some embodiments, after the first device sends a data message using the first channel, it expects to receive a response message sent by the second device. Alternatively, after the first device sends a data message using the first channel, it expects to receive a response message sent by the second device using the first channel.

[0172] In some embodiments, the second device receives a data packet sent by the first device. Optionally, the second device determines that it has received a data packet sent by the first device using the first channel and executes step S2104. Optionally, the second device responds to the data packet sent by the first device using the first channel and executes step S2104.

[0173] Step S2104: The second device sends a response message to the first device.

[0174] In some embodiments, the response message may be a Bluetooth data frame. Optionally, the response message may include confirmation information for the data message. For example, if the second device correctly receives the data message within a connection interval in which the first device sends the data message, the second device may send a response message to the first device within the connection interval so that the first device can know that the data message it sent was correctly received by the second device.

[0175] In some embodiments, the second device sends the response message using a first channel. Optionally, the first channel may be a first channel through which the second device receives a data message.

[0176] In some embodiments, the second device sends a response message to the first device within a connection interval in which the data message is received.

[0177] For example, the first device sends a data message to the second device using channel 1 in connection interval 1. After receiving the data message, the second device may send a response message to the first device using channel 1 in connection interval 1.

[0178] In some embodiments, the second device may not send a corresponding response report when it determines that it has received a data packet sent by the first device in a previous connection interval.

[0179] For example, the first device sends a data message to the second device using channel 1 in connection interval 1, and the second device receives the data message in connection interval 2. In this case, the second device may not send a corresponding response message to the first device.

[0180] In some embodiments, the first device receives a response message sent by the second device. Optionally, the first device performs step S2105 based on whether the response message sent by the second device is received. Optionally, after receiving the response message, the first device determines the first channel corresponding to the response message and performs step S2105.

[0181] Step S2105: The first device determines the availability status of the first channel.

[0182] In some embodiments, the first device may determine the availability status of a first channel in a connection interval. Alternatively, the first device may determine the availability status of each first channel (e.g., N first channels) in the first channel list in multiple connection intervals (e.g., N connection intervals).

[0183] In some embodiments, the first device determines the availability of the first channel based on the channel interference obtained by performing energy detection on the first channel. Specific optional implementation methods can be found in the relevant parts of step S2102 and are not described here in detail.

[0184] In some embodiments, the first device determines the availability of the first channel based on whether a response message is received. Alternatively, after sending a data message using the first channel, the first device determines the availability of the first channel based on whether a response message corresponding to the data message is received. Alternatively, after sending a data message using the first channel, the first device determines the availability of the first channel based on whether a response message corresponding to the data message is received within a current connection interval.

[0185] In some embodiments, the first device determines that a response message sent by the second device has been received, and sets the available state of the first channel to the first state. Optionally, the first device receives a first response message sent by the second device within a first connection interval, and sets the available state of the first channel to the first state, wherein the first connection interval may be a connection interval in which the first device sends a first data message, and the first response message is a response message corresponding to the first data message.

[0186] In some embodiments, the first device determines that it has not received a response message sent by the second device, and sets the available state of the first channel to the second state. Optionally, the first device does not receive a first response message sent by the second device within a first connection interval, and sets the available state of the first channel to the second state, wherein the first connection interval may be a connection interval in which the first device sends a first data message, and the first response message is a response message corresponding to the first data message.

[0187] In some embodiments, the first device determines that it has not received the response message sent by the second device, including at least one of the following: the first device determines that the data message is sent successfully but cannot correctly receive the response message; the first device determines that the data message is sent failed.

[0188] Optionally, the first device being unable to correctly receive the response message may mean that the first device has not received the corresponding response message within the connection interval for sending the data message, or the received response message is incomplete. Optionally, the first device failing to send the data message may mean that the first device has not successfully sent the data message, or that the second device is unable to correctly receive the data message. Among them, the second device being unable to correctly receive the data message may mean that the second device is unable to receive the data message within the connection interval for sending the data message by the first device, or that the data message received by the second device is incomplete.

[0189] In some embodiments, if the first device determines that the available status of the first channel obtained is different from the available status of the first channel in the first channel list, step S2106 and subsequent steps are executed. Alternatively, if the first device determines that the available status of the first channel obtained is the same as the available status in the first channel list, step S2106 may not be executed and subsequent steps may be executed directly.

[0190] That is, if the first device determines that the first channel list is updated, step S2106 and subsequent steps may be executed; if the first device determines that the first channel list is not updated, step S2106 may be skipped.

[0191] It can be understood that since the available status of the first channel in the first channel list can be initially the third state, the first device can execute step S2106 at least N times to update the available status of the first channel in the first channel list whose available status is the third state to the first state or the second state, where N can be the number of first channels in the first channel list, and N is greater than or equal to 1.

[0192] Step S2106: The first device sends the first information to the second device.

[0193] In some embodiments, the first information indicates the first channel list. Optionally, the first information indicates the first channel list updated based on at least one of steps S2102 to S2105. Optionally, the first information indicates that the first device has updated the first channel list. Optionally, the first information indicates that the second device determines the updated first channel list based on the first information.

[0194] In some embodiments, the first information may be sent using a list update interface, which may be, for example, a "Channel Map Update" interface.

[0195] In some embodiments, step S2106 may be performed multiple times. Optionally, step S2106 may be performed before step S2102, for example, the first information may be used to indicate the first channel list in an initial state, or after step S2105, for example, the first information may be used to indicate the updated first channel list. The present disclosure does not limit the order in which these steps are performed.

[0196] For example, the first device determines that the equivalent occupancy rate corresponding to the first channel is less than or equal to the preset occupancy threshold. Step S2105 can be executed once. After the first device performs energy detection on a first channel and updates the first channel list, step S2105 can be executed again. Furthermore, the first device can update the first channel list based on whether a response message is received, and then execute it again, and so on.

[0197] In some embodiments, the second device receives the first information. Optionally, the second device receives the first information sent by the first device using a list update interface. Optionally, the second device determines the first channel list based on the first information.

[0198] In some embodiments, the first information may be “list indication information”, “list update information”, etc., and the embodiments of the present disclosure do not limit the names thereof.

[0199] Step S2107: The first device performs Bluetooth communication with the second device according to the first channel list.

[0200] In some embodiments, one or more of steps S2101 to S2106 may be performed during Bluetooth communication between the first device and the second device. For example, steps S2101 to S2106 may be performed during the first device sending Bluetooth data to the second device. For example, the data packet sent by the first device in step S2103 may be Bluetooth data to be sent by the first device or a portion of the Bluetooth data.

[0201] Optionally, the first device may update the available status of the first channel in the first channel list while performing Bluetooth communication with the second device according to the first channel list, and send the updated first channel list to the second device.

[0202] In some embodiments, the first device uses a first channel in a first channel list whose available state is the first state and / or the third state to perform adaptive frequency hopping communication with the second device. Optionally, the first device uses a first channel in the first channel list whose available state is the first state and / or the third state to perform adaptive frequency hopping communication with the second device based on the index of each first channel in the first channel list. Accordingly, since the second device and the first device communicate based on the same first channel list, the second device can use the first channel in the first channel list whose available state is the first state and / or the third state to perform adaptive frequency hopping communication with the first device.

[0203] In some embodiments, the first device preferentially uses the first channel whose available state is the first state to send Bluetooth data, such as a data message or a response message, to the second device. Optionally, the second device preferentially uses the first channel whose available state is the first state to receive Bluetooth data, such as a data message or a response message, sent by the first device.

[0204] In some embodiments, the first device does not use the first channel whose available state is the second state to send Bluetooth data to the second device. Optionally, the second device does not use the first channel whose available state is the second state to receive Bluetooth data sent by the first device.

[0205] For example, the first channel in the first channel list includes channel 1, channel 2 and channel 3, the available state of channel 1 is the first state, the available state of channel 2 is the second state, and the available state of channel 3 is the third state. Then, when channel 1, channel 2 and channel 3 are not in use, the first device can use channel 1 to send Bluetooth data (such as data packets) to the second device and / or receive Bluetooth data (such as response packets) sent by the second device in the first connection interval, and perform frequency hopping in the second connection interval to use channel 3 to send Bluetooth data to the second device and / or receive Bluetooth data sent by the second device.

[0206] In some embodiments, the first device and the second device may perform one or more of steps S2101 to S2107 once in each connection interval. For example, in one connection interval, the first device determines whether the first channel in the first channel list is used for Bluetooth communication through step S2101, and then, based on one or more of steps S2102 to S2105, uses the first channel in the first channel list (such as the first channel whose available status is the third state) to transmit Bluetooth data while determining the available status of the first channel in the first channel list. When the available status of the first channel is updated, the first device sends the updated first channel list to the second device through step S2106, and then performs step S2107 based on the updated first channel list. Furthermore, the first device may repeat one or more of steps S2101 to S2107 in the next connection interval until the Bluetooth data transmission is completed.

[0207] In some embodiments, the channel access mechanism based on steps S2101 to S2106 may be a detect and avoid (DAA) mechanism, specifically a regulated DAA (rDAA) mechanism.

[0208] In some embodiments, the names of information, etc. are not limited to the names described in the embodiments, and terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codeword", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0209] In some embodiments, the terms "radio", "wireless", "radio access network (RAN)", "access network (AN)", "RAN-based" and the like may be used interchangeably.

[0210] In some embodiments, terms such as "moment", "time point", "time", and "time position" can be replaced with each other, and terms such as "duration", "period", "time window", "window", and "time" can be replaced with each other.

[0211] In some embodiments, terms such as "frame", "radio frame", "subframe", "slot", "sub-slot", "mini-slot", "symbol", "symbol", and "transmission time interval (TTI)" can be used interchangeably.

[0212] In some embodiments, "obtain", "get", "get", "receive", "transmit", "bidirectional transmission", "send and / or receive" can be interchangeable, and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining by self-processing, autonomous implementation, etc.

[0213] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0214] In some embodiments, terms such as "certain", "preset", "preset", "setting", "indicated", "a certain", "any", and "first" can be interchangeable. "Specific A", "preset A", "preset A", "setting A", "indicated A", "a certain A", "any A", and "first A" can be interpreted as A pre-specified in a protocol, etc., or as A obtained through setting, configuration, or indication, etc., or as specific A, a certain A, any A, or first A, etc., but not limited to this.

[0215] In some embodiments, the determination or judgment can be performed by a value represented by 1 bit (0 or 1), or by a true or false value (Boolean value) represented by true or false, or by comparison of numerical values ​​(for example, comparison with a predetermined value), but is not limited thereto.

[0216] In some embodiments, "not expecting to receive" can be interpreted as not receiving on time domain resources and / or frequency domain resources, or as not performing subsequent processing on the data after receiving it; "not expecting to send" can be interpreted as not sending, or as sending but not expecting the recipient to respond to the content sent.

[0217] The communication method involved in the embodiments of the present disclosure may include at least one of steps S2101 to S2107. For example, step S2101 may be implemented as an independent embodiment, step S2102 may be implemented as an independent embodiment, step S2105 may be implemented as an independent embodiment, step S2102 + step S2103 may be implemented as an independent embodiment, and step S2103 + step S2104 + step S2105 may be implemented as independent embodiments, but the present invention is not limited thereto.

[0218] In some embodiments, step S2102 and step S2103 may be exchanged in order or executed simultaneously, and step S2107 and any other steps may be exchanged in order.

[0219] In some embodiments, steps S2101 to S2102 and steps S2104 to S2107 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0220] In some embodiments, steps S2102 to S2107 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0221] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2 .

[0222] FIG3A is a flow chart of a Bluetooth communication method according to an embodiment of the present disclosure. As shown in FIG3A , the embodiment of the present disclosure relates to a Bluetooth communication method (on the first device side), the method comprising:

[0223] Step S3101: Determine the equivalent occupancy rate.

[0224] The optional implementation of step S3101 can refer to the optional implementation of step S2101 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0225] Step S3102: Perform energy detection on the first channel.

[0226] The optional implementation of step S3102 can refer to the optional implementation of step S2102 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0227] Step S3103: Send a data message using the first channel.

[0228] The optional implementation of step S3103 can refer to the optional implementation of step S2103 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0229] In some embodiments, the first device sends a data message to the second device, but is not limited thereto and may also send a data message to other entities.

[0230] Step S3104, obtain a response message.

[0231] The optional implementation of step S3104 can refer to the optional implementation of step S2104 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0232] In some embodiments, the first device receives a response message sent by the second device, but is not limited thereto and may also receive a response message sent by other entities.

[0233] Step S3105: Determine the availability status of the first channel.

[0234] The optional implementation of step S3105 can refer to the optional implementation of step S2105 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0235] Step S3106, sending the first information.

[0236] The optional implementation of step S3106 can refer to the optional implementation of step S2106 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0237] In some embodiments, the first device sends the first information to the second device, but is not limited thereto, and the first information may also be sent to other entities.

[0238] Step S3107: Perform Bluetooth communication according to the first channel list.

[0239] The optional implementation of step S3107 can refer to the optional implementation of step S2107 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0240] The communication method involved in the embodiments of the present disclosure may include at least one of steps S3101 to S3107. For example, step S3101 may be implemented as an independent embodiment, step S3102 may be implemented as an independent embodiment, step S3105 may be implemented as an independent embodiment, step S3102 + step S3103 may be implemented as an independent embodiment, and step S3103 + step S3104 + step S3105 may be implemented as independent embodiments, but the present invention is not limited thereto.

[0241] In some embodiments, step S3102 and step S3103 can be exchanged in order or executed simultaneously, and step S3107 and any other steps can be exchanged in order.

[0242] In some embodiments, steps S3101 to S3102 and steps S3104 to S3107 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0243] In some embodiments, steps S3102 to S3107 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0244] FIG3B is a flow chart of a Bluetooth communication method according to an embodiment of the present disclosure. As shown in FIG3B , the embodiment of the present disclosure relates to a Bluetooth communication method (on the first device side), the method comprising:

[0245] Step S3201: Determine the equivalent occupancy rate.

[0246] Optional implementations of step S3201 can be found in step S2101 of FIG. 2 , optional implementations of step S3101 of FIG. 3A , and other related parts in the embodiments involved in FIG. 2 and FIG. 3A , which will not be described in detail here.

[0247] Step S3202: Perform Bluetooth communication according to the first channel list.

[0248] Optional implementations of step S3202 can be found in step S2107 of FIG. 2 , optional implementations of step S3107 of FIG. 3A , and other related parts in the embodiments involved in FIG. 2 and FIG. 3A , which will not be described in detail here.

[0249] Step S3203: Use the first channel to send a data message.

[0250] Optional implementations of step S3203 may refer to step S2103 in FIG. 2 , optional implementations of step S3103 in FIG. 3A , and other related parts in the embodiments involved in FIG. 2 and FIG. 3A , which will not be described in detail here.

[0251] Step S3204, obtain a response message.

[0252] Optional implementations of step S3204 can be found in step S2104 of FIG. 2 , optional implementations of step S3104 of FIG. 3A , and other related parts in the embodiments involved in FIG. 2 and FIG. 3A , which will not be described in detail here.

[0253] Step S3205: Determine the availability status of the first channel.

[0254] The optional implementation of step S3205 can refer to step S2105 in Figure 2, the optional implementation of step S3105 in Figure 3A, and other related parts in the embodiments involved in Figures 2 and 3A, which will not be repeated here.

[0255] Step S3206, sending the first information.

[0256] Optional implementations of step S3206 can be found in step S2106 of FIG. 2 , optional implementations of step S3106 of FIG. 3A , and other related parts in the embodiments involved in FIG. 2 and FIG. 3A , which will not be described in detail here.

[0257] In some embodiments, after the first device sends the first information, it may further perform Bluetooth communication based on the updated first channel list in the first information.

[0258] The communication method involved in the embodiments of the present disclosure may include at least one of steps S3201 to S3206. For example, step S3201 may be implemented as an independent embodiment, step S3203 may be implemented as an independent embodiment, step S3205 may be implemented as an independent embodiment, step S3202 + step S3203 may be implemented as an independent embodiment, and step S3203 + step S3204 + step S3205 may be implemented as independent embodiments, but the present invention is not limited thereto.

[0259] In some embodiments, step S3202 and step S3203 may be executed simultaneously, and step S3202 and step S3206 may be swapped in order.

[0260] In some embodiments, steps S3201 to S3202 and steps S3204 to S3206 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0261] In some embodiments, steps S3202 to S3206 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0262] FIG3C is a flow chart of a Bluetooth communication method according to an embodiment of the present disclosure. As shown in FIG3C , the embodiment of the present disclosure relates to a Bluetooth communication method (on the first device side), the method comprising:

[0263] Step S3301: Determine the equivalent occupancy rate.

[0264] Optional implementations of step S3301 may refer to the optional implementations of step S2101 in FIG. 2 , step S3101 in FIG. 3A , step S3201 in FIG. 3B , and other related parts in the embodiments involved in FIG. 2 , FIG. 3A , and FIG. 3B , which will not be described in detail here.

[0265] Step S3302: Use the first channel for Bluetooth communication and determine the availability status of the first channel.

[0266] The optional implementation methods of step S3302 can be found in steps S2102 to S2105 and S2107 of Figure 2, steps S3102 to S3105 and S3107 of Figure 3A, and the optional implementation methods of steps S3202 to S3205 of Figure 3B, as well as other related parts in the embodiments involved in Figures 2, 3A, and 3B, which will not be repeated here.

[0267] Step S3303, sending the first information.

[0268] The optional implementation of step S3302 can refer to the optional implementation of step S2106 in Figure 2, step S3106 in Figure 3A, step S3206 in Figure 3B, and other related parts in the embodiments involved in Figures 2, 3A, and 3B, which will not be repeated here.

[0269] The communication method involved in the embodiments of the present disclosure may include at least one of steps S3301 to S3303. For example, step S3301 may be implemented as an independent embodiment, step S3302 may be implemented as an independent embodiment, step S3301 + step S3302 may be implemented as an independent embodiment, and step S3302 + step S3303 may be implemented as independent embodiments, but the present invention is not limited thereto.

[0270] In some embodiments, step S3301 and step S3303 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0271] In some embodiments, steps S3302 to S3303 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0272] FIG3D is a flow chart of a Bluetooth communication method according to an embodiment of the present disclosure. As shown in FIG3D , the embodiment of the present disclosure relates to a Bluetooth communication method (on the first device side), the method comprising:

[0273] Step S3401: Perform Bluetooth communication according to the first channel list.

[0274] For the optional implementation of step S3401, please refer to steps S2102 to S2105 and S2107 of Figure 2, steps S3102 to S3105 and S3107 of Figure 3A, steps S3202 to S3205 of Figure 3B, and the optional implementation of step S3302 of Figure 3C, as well as other related parts in the embodiments involved in Figures 2, 3A, and 3B, which will not be repeated here.

[0275] In some embodiments, the first device performs Bluetooth communication with the second device based on a first channel list, the first channel list includes at least one first channel and the available status of each first channel, the first channel is a channel of a first frequency band, and the lowest frequency of the first frequency band is greater than or equal to 2.4 GHz.

[0276] In some embodiments, the first frequency band includes at least one of a 5.1 GHz frequency band and a 5.8 GHz frequency band.

[0277] In some embodiments, the available state of the first channel includes at least one of the following: a first state; a second state; a third state;

[0278] The first state is used to indicate that the first channel can be used for bidirectional communication between the first device and the second device, the second state is used to indicate that the first channel cannot be used for bidirectional communication between the first device and the second device, and the third state is used to indicate that the availability status of the first channel is unknown.

[0279] In some embodiments, the first device performs Bluetooth communication with the second device according to the first channel list, including:

[0280] The first device preferentially uses the first channel whose available state is the first state to send Bluetooth data to the second device; or,

[0281] The first device does not use the first channel whose available state is the second state to send Bluetooth data to the second device.

[0282] In some embodiments, the first device performs Bluetooth communication with the second device according to the first channel list, including:

[0283] The first device uses the first channel in the first channel list whose available state is the first state and / or the third state to perform adaptive frequency hopping communication with the second device.

[0284] In some embodiments, the first device performs Bluetooth communication with the second device according to the first channel list, including:

[0285] The first device performs Bluetooth communication with the second device using the first channel and determines an available status of the first channel.

[0286] In some embodiments, the first device performs Bluetooth communication with the second device using a first channel, and determining an available state of the first channel includes:

[0287] The first device sends a data message to the second device using the first channel;

[0288] The first device determines that a response message sent by the second device is received, and sets the available state of the first channel to the first state;

[0289] The first device determines that it has not received the response message sent by the second device, and sets the available state of the first channel to the second state.

[0290] In some embodiments, the first device determines that the response message sent by the second device is not received, including at least one of the following:

[0291] The first device determines that the data message is sent successfully but cannot correctly receive the response message;

[0292] The first device determines that sending the data packet fails.

[0293] In some embodiments, the first device performs Bluetooth communication with the second device using a first channel, and determining an available state of the first channel includes:

[0294] The first device performs energy detection on the first channel to determine channel interference of the first channel;

[0295] The first device determines that channel interference is greater than a preset interference threshold, and sets the available state of the first channel to the second state.

[0296] In some embodiments, the first device sends a data packet to the second device using the first channel, including:

[0297] The first device determines that channel interference is less than or equal to a preset interference threshold, and uses the first channel to send a data message to the second device.

[0298] In some embodiments, the first device performs Bluetooth communication with the second device using a first channel, and determining an available state of the first channel includes:

[0299] The first device determines an equivalent occupancy rate corresponding to the first frequency band;

[0300] The first device determines that the equivalent occupancy rate is less than or equal to a preset occupancy threshold, uses the first channel to perform Bluetooth communication with the second device, and determines an available status of the first channel.

[0301] In some embodiments, the method comprises:

[0302] The first device determines that the equivalent occupancy rate is greater than a preset occupancy threshold, does not send a data message in the current connection interval, and redetermines the equivalent occupancy rate in the next connection interval.

[0303] In some embodiments, the preset occupancy threshold is less than or equal to 10%.

[0304] In some embodiments, the method comprises:

[0305] The first device sends first information to the second device, where the first information is used to indicate a first channel list.

[0306] FIG4A is a flow chart of a Bluetooth communication method according to an embodiment of the present disclosure. As shown in FIG4A , the embodiment of the present disclosure relates to a Bluetooth communication method (on the second device side), the method comprising:

[0307] Step S4101, receiving a data message.

[0308] The optional implementation of step S4101 can refer to the optional implementation of step S2103 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0309] In some embodiments, the second device receives the data message sent by the first device, but is not limited thereto and may also receive the data message sent by other entities.

[0310] Step S4102, sending a response message.

[0311] The optional implementation of step S4102 can refer to the optional implementation of step S2104 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0312] Step S4103, receiving the first information.

[0313] The optional implementation of step S4103 can refer to the optional implementation of step S2106 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0314] In some embodiments, the second device receives the first information sent by the first device, but is not limited thereto and may also receive the first information sent by other entities.

[0315] Optionally, the first information is used to indicate a first channel list. Optionally, the first channel list may be determined by the first device. For an optional implementation of the first device determining the first channel list, see steps S2102 to S2105 and the optional implementation of step S2107 in FIG. 2 .

[0316] Step S4104: Perform Bluetooth communication according to the first channel list.

[0317] The optional implementation of step S4101 can refer to the optional implementation of step S2107 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0318] The communication method involved in the embodiments of the present disclosure may include at least one of steps S4101 to S4104. For example, step S4101 can be implemented as an independent embodiment, step S4102 can be implemented as an independent embodiment, step S4104 can be implemented as an independent embodiment, step S4101 + step S4102 can be implemented as an independent embodiment, step S4101 + step S4102 + step S4103 can be implemented as an independent embodiment, and step S4103 + step S4104 can be implemented as an independent embodiment, but the present invention is not limited thereto.

[0319] In some embodiments, step S4101 and step S4104 may be executed simultaneously, step S4103 and step S4104 may be executed simultaneously or in an exchanged order, and step S4101 and step S4103 may be executed simultaneously or in an exchanged order.

[0320] In some embodiments, steps S4102 to S4104 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0321] In some embodiments, step S4101 and steps S4103 to S4104 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0322] FIG4B is a flow chart of a Bluetooth communication method according to an embodiment of the present disclosure. As shown in FIG4B , the embodiment of the present disclosure relates to a Bluetooth communication method (on the second device side), the method comprising:

[0323] Step S4201, receiving first information.

[0324] The optional implementation of step S4201 can refer to step S2106 of FIG. 2 , the optional implementation of step S4103 of FIG. 4A , and other related parts in the embodiments involved in FIG. 2 and FIG. 4A , which will not be described in detail here.

[0325] Step S4202: Perform Bluetooth communication according to the first channel list.

[0326] The optional implementation of step S4202 can refer to the optional implementation of step S2107 in Figure 2, step S4104 in Figure 4A, and other related parts in the embodiments involved in Figures 2 and 4A, which will not be repeated here.

[0327] The communication method involved in the embodiment of the present disclosure may include at least one of steps S4201 and S4202. For example, step S4201 may be implemented as an independent embodiment, and step S4202 may be implemented as an independent embodiment.

[0328] In some embodiments, step S4201 and step S4202 may be executed simultaneously or in an exchanged order.

[0329] In some embodiments, step S4201 is optional and may be omitted or replaced in different embodiments.

[0330] FIG4C is a flow chart of a Bluetooth communication method according to an embodiment of the present disclosure. As shown in FIG4C , the embodiment of the present disclosure relates to a Bluetooth communication method (on the second device side), the method comprising:

[0331] Step S4301: Perform Bluetooth communication according to the first channel list.

[0332] The optional implementation of step S4301 can refer to step S2107 of FIG. 2 , the optional implementation of step S4104 of FIG. 4A , and other related parts in the embodiments involved in FIG. 2 and FIG. 4A , which will not be described in detail here.

[0333] In some embodiments, the first channel list may be indicated by the first device via the first information. Alternatively, the first channel list may be determined by the first device. For alternative implementations of determining the first channel list by the first device, see steps S2102 to S2105 and the alternative implementation of step S2107 in FIG. 2 .

[0334] In some embodiments, the second device performs Bluetooth communication with the first device based on a first channel list, the first channel list includes at least one first channel and the available status of the first channel, the first channel is a channel of a first frequency band, and the lowest frequency of the first frequency band is greater than or equal to 2.4 GHz.

[0335] In some embodiments, the first frequency band includes at least one of a 5.1 GHz frequency band and a 5.8 GHz frequency band.

[0336] In some embodiments, the available state of the first channel includes at least one of the following: a first state; a second state; a third state;

[0337] The first state is used to indicate that the first channel can be used for bidirectional communication between the first device and the second device, the second state is used to indicate that the first channel cannot be used for bidirectional communication between the first device and the second device, and the third state is used to indicate that the availability status of the first channel is unknown.

[0338] In some embodiments, the first device performs Bluetooth communication with the second device according to the first channel list, including:

[0339] The second device preferentially uses the first channel whose available state is the first state to receive the Bluetooth data sent by the first device; or,

[0340] The second device does not use the first channel whose available state is the second state to receive the Bluetooth data sent by the first device.

[0341] In some embodiments, the second device performs Bluetooth communication with the first device according to the first channel list, including:

[0342] The second device uses the first channel in the first channel list whose available state is the first state and / or the third state to perform adaptive frequency hopping communication with the first device.

[0343] In some embodiments, the method includes: the second device receiving first information sent by the first device, where the first information is used to indicate a first channel list.

[0344] FIG5 is an interactive diagram of a Bluetooth communication method according to an embodiment of the present disclosure. As shown in FIG5 , the embodiment of the present disclosure relates to a Bluetooth communication method, the method comprising:

[0345] Step S5101: The first device performs Bluetooth communication with the second device according to the first channel list.

[0346] In some embodiments, while the first device performs Bluetooth communication with the second device according to the first channel list, the first device updates the availability status of the channels in the first channel list, and performs Bluetooth communication based on the updated first channel list.

[0347] In some embodiments, the optional implementation of step S5101 can refer to steps S2101 to S2107 in Figure 2, steps S3101 to S3107 in Figure 3A, steps S3201 to S3206 in Figure 3B, steps S3301 to 3303 in Figure 3C, step S3401 in Figure 3D, steps S4101 to S4104 in Figure 4A, steps S4201 to S4202 in Figure 4B, and the optional implementation of step S4401 in Figure 4C, as well as other related parts in the embodiments involved in Figures 2, 3A, 3B, 3C, 3D, 4A, 4B, and 4C, which will not be repeated here.

[0348] FIG6A is a flow chart of a Bluetooth communication method according to an embodiment of the present disclosure. As shown in FIG6A , the embodiment of the present disclosure relates to a Bluetooth communication method, which can be applied to a central device in a Bluetooth communication system, such as a first device, and includes:

[0349] Step S6101: Mark all Bluetooth channels as the third state.

[0350] The third state may be, for example, “unknown.” For example, if the first device determines that the available state of a channel in the first channel list is “unknown,” the first device may determine that the available state of the channel is unknown, that is, the channel may be idle or occupied.

[0351] In some embodiments, step S6101 may be a step of confidence when the first device initially detects the second device.

[0352] In some embodiments, all channels in step S6101 may refer to all channels in the first frequency band, such as all channels in the 5.1 GHz frequency band and / or the 5.8 GHz frequency band. In some of the above embodiments, these channels may be referred to as first channels.

[0353] Step S6102: Count the equivalent occupancy rate.

[0354] In some embodiments, the equivalent occupancy may be an equivalent occupancy corresponding to the first frequency band. For example, the equivalent occupancy may be determined based on an equivalent isotropically radiated power of the first device according to the first frequency band, an equivalent isotropically radiated power limit of the first frequency band, and a duty cycle of the first device.

[0355] Step S6103: determine whether the equivalent occupancy rate is less than or equal to 10%.

[0356] In some embodiments, if the equivalent occupancy rate is determined to be less than or equal to 10%, steps S6104 and S6105 are performed. Alternatively, if the equivalent occupancy rate is determined to be greater than 10%, step S6110 may be performed to perform steps S6101 and S6102 in the next connection interval.

[0357] Step S6104: Execute Bluetooth adaptive frequency hopping communication.

[0358] In some embodiments, the first device and the second device may perform adaptive frequency hopping communication based on the first channel list.

[0359] It is understood that after executing step S6101, the first device can indicate the first channel list in the initial state to the second device through the Channel Map Update interface, for example, by sending the first information through the first device. In this way, the first device and the second device can perform adaptive frequency hopping communication based on the same first channel list.

[0360] Step S6105: Perform energy detection to determine whether the channel interference exceeds a threshold.

[0361] In some embodiments, the first device performs energy detection on only one channel during one connection interval.

[0362] In some embodiments, the threshold may be the preset interference threshold or the preset level threshold in some of the above embodiments.

[0363] In some embodiments, if it is determined that the channel interference of a certain channel exceeds the threshold, step S6108 and subsequent steps may be performed. Alternatively, if it is determined that the channel interference of a certain channel does not exceed the threshold, step S6106 may be performed.

[0364] Step S6106, determine whether the data message is sent or received successfully.

[0365] In some embodiments, the first device may determine whether the data packet is successfully sent and received based on whether a response packet corresponding to the data packet is correctly received.

[0366] In some embodiments, the first device may first send a data message to the second device, and determine whether a corresponding response message is received within a current connection interval to determine whether the data message is successfully sent and received.

[0367] It can be understood that the channel used by the first device to send the data message to the second device may be the channel for performing energy detection in step S6105.

[0368] In some embodiments, if it is determined that the data message is successfully sent or received, step S6107 and subsequent steps may be executed. Alternatively, if it is determined that the data message is not successfully sent or received, step S6108 and subsequent steps may be executed.

[0369] Step S6107: Mark the Bluetooth channel as the first state.

[0370] It can be understood that the channel marked as the first state in step S6107 can be the channel for energy detection in step S6105 and step S6106, and the channel for sending and receiving data messages.

[0371] The first state may be, for example, "good." If the first device determines that the availability state of a channel in the first channel list is "good," the first device may determine that the channel can be used for bidirectional communication between the first device and the second device, that is, the channel may be an idle channel or a channel with low interference.

[0372] Step S6108: Mark the Bluetooth channel as the second state.

[0373] It is understandable that the channel marked as the first state in step S6108 may be the channel for energy detection in step S6105 and step S6106, and the channel for sending and receiving data messages.

[0374] The second status may be, for example, "bad." If the first device determines that the availability status of a channel in the first channel list is "bad," the first device may determine that the channel cannot be used for bidirectional communication between the first device and the second device, that is, the channel may be an occupied channel or a channel with high interference.

[0375] Step S6109, update the Bluetooth channel list.

[0376] In some embodiments, the first device may update the available status of channels in a channel list (e.g., the first channel list) according to step S6107 or step S6108. Simultaneously, the first device may indicate the updated first channel list to the second device via a Channel Map Update interface, for example, by sending a first message via the first device. In this way, the first device and the second device may perform adaptive frequency hopping communication based on the same first channel list.

[0377] In some embodiments, after step S6109 is completed, steps S6102 to S6109 may be re-executed in the next connection interval until the Bluetooth data transmission is completed or the Bluetooth connection between the first device and the second device is disconnected.

[0378] Step S6110, postpone sending and wait for the next connection interval.

[0379] In some embodiments, the first device determines that the next connection interval has arrived, or triggers the next connection event, and then can automatically perform step S6102 and subsequent steps.

[0380] In the embodiments of the present disclosure, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations of other embodiments.

[0381] Figure 6B is a schematic diagram of a Bluetooth communication shown in accordance with an embodiment of the present disclosure. In Figure 6B, the horizontal axis represents time and the vertical axis represents frequency. As shown in Figure 6B, in the connection interval before time t1, the first device and the second device use CH1 to CH4 for adaptive frequency hopping communication. After time t1, due to interference from other communication technologies, such as WiFi data using this frequency band for transmission, such as data transmission based on the IEEE 802.11 standard, CH2 and CH3 cannot correctly send and receive data messages, then the first device can set the available state of CH2 and CH3 to the second state, such as "bad". And avoid using CH2 and CH3 in subsequent adaptive frequency hopping communications. Optionally, the first device can retry using CH2 and CH3 for Bluetooth communication after determining that a certain time has been reached. Among them, CH1 can be the channel with the lowest center frequency in the first frequency band, and the frequency of this channel can be higher than 2.4GHz, for example, it can be a channel in the 5.1GHz band, or a channel in the 5.8GHz band.

[0382] It can be understood that the filled rectangle in FIG. 6B may indicate that the corresponding channel availability status is determined to be the second status.

[0383] In some embodiments, the inability to correctly send and receive data messages may include the following situations: 1. The Central device successfully sends a message to the Peripheral device, but the Peripheral device fails to send a response message to the Central device, so the Central device cannot correctly receive the response message from the Peripheral device; 2. The Central device fails to send a message to the Peripheral device, so the Central device cannot receive the response message from the Peripheral device; 3. The Central device or the Peripheral device senses channel interference exceeding a threshold through energy detection.

[0384] In some of the above embodiments, the channel access mechanism in which the first device sends a data message first and then updates the channel list, and then performs adaptive frequency hopping communication based on the updated channel list may be a DAA mechanism.

[0385] In some embodiments, a Bluetooth Central device operating in a higher frequency band may mark the quality of all channels as unknown by default, maintain a channel map, synchronize with peripheral devices, and enable adaptive frequency hopping communication.

[0386] In some embodiments, even if energy detection determines that there is interference from other communication technologies on the channel, the Central device can still continue to send data packets. If the interference is too high and the data packet sent by the Bluetooth Central device on the selected channel is not correctly received by the Peripheral device, or the data packet sent by the Bluetooth Peripheral device is not correctly received by the Central device, the Central device marks the channel quality as bad.

[0387] In some embodiments, if the data packets sent by the Bluetooth Central device on the selected channel are still correctly received by the Peripheral device even in the presence of interference from other communications in a higher frequency band, and the data packets sent by the Bluetooth Peripheral device can also be correctly received by the Central device, the Central device can mark the channel quality as good.

[0388] In some embodiments, according to the above steps, during the communication process, the Bluetooth Central device continuously updates the channel quality mark and maintains a channel list (channel map) based on the transmission and reception of data messages and interference detection. The Bluetooth channel selection algorithm can prioritize channels marked as good for adaptive frequency hopping communication based on the channel table.

[0389] In some embodiments, Bluetooth communications in higher frequency bands should comply with corresponding regulations, for example, the equivalent occupancy rate should not exceed 10%. If it exceeds 10%, data transmission can be postponed until the next connection event.

[0390] In the embodiments of the present disclosure, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations of other embodiments.

[0391] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., an access network device, a core network function node, a core network device, a first device, a second device, a network device, etc.) in any of the above methods.

[0392] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0393] In the embodiments of the present disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution capabilities, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and implementing the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0394] Figure 7A is a structural diagram of the first device proposed in an embodiment of the present disclosure. As shown in Figure 7A, the first device 7100 may include: at least one of a transceiver module 7101, a processing module 7102, etc. In some embodiments, the above-mentioned transceiver module 7101 is used to perform Bluetooth communication with the second device according to the first channel list, and the first channel list includes at least one first channel and the available status of each first channel, the first channel is a channel of the first frequency band, and the lowest frequency of the first frequency band is greater than or equal to 2.4GHz. Optionally, the above-mentioned transceiver module 7101 is used to perform at least one of the communication steps such as sending and / or receiving performed by the first device in any of the above methods, which will not be repeated here. Optionally, the above-mentioned processing module 7102 is used to perform at least one of the other steps performed by the first device in any of the above methods, which will not be repeated here.

[0395] Figure 7B is a structural diagram of the second device proposed in an embodiment of the present disclosure. As shown in Figure 7B, the second device 7200 may include: at least one of a transceiver module 7201, a processing module 7202, etc. In some embodiments, the above-mentioned transceiver module 7201 is used to perform Bluetooth communication with the first device according to the first channel list, and the first channel list includes at least one first channel and the available status of the first channel, the first channel is a channel of the first frequency band, and the lowest frequency of the first frequency band is greater than or equal to 2.4GHz. Optionally, the above-mentioned transceiver module 7201 is used to execute at least one of the communication steps such as sending and / or receiving performed by the second device in any of the above methods, which will not be repeated here. Optionally, the above-mentioned processing module 7202 is used to execute at least one of the other steps performed by the second device in any of the above methods, which will not be repeated here.

[0396] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, and the transmitting module and the receiving module may be separate or integrated. Optionally, the transceiver module may be interchangeable with the transceiver.

[0397] In some embodiments, the processing module can be a single module or can include multiple submodules. Optionally, the multiple submodules respectively execute all or part of the steps required to be executed by the processing module. Optionally, the processing module can be interchangeable with the processor.

[0398] Figure 8A is a schematic diagram of the structure of a communication device 8100 proposed in an embodiment of the present disclosure. Communication device 8100 can be a network device (e.g., a first device, a second device, an access network device, a core network device, etc.), or a terminal (e.g., a first device, a second device, a user device, etc.), or a chip, a chip system, or a processor that supports a network device in implementing any of the above methods, or a chip, a chip system, or a processor that supports a terminal in implementing any of the above methods. Communication device 8100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0399] As shown in Figure 8A, the communication device 8100 includes one or more processors 8101. The processor 8101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process the communication protocol and communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a Bluetooth device, a Bluetooth chip, a DU or a CU, etc.), execute programs, and process program data. Optionally, the communication device 8100 is used to perform any of the above methods. Optionally, one or more processors 8101 are used to call instructions to enable the communication device 8100 to perform any of the above methods.

[0400] In some embodiments, the communication device 8100 further includes one or more transceivers 8102. When the communication device 8100 includes one or more transceivers 8102, the transceiver 8102 performs at least one of the communication steps, such as sending and / or receiving, in the above-described method, and the processor 8101 performs at least one of the other steps. In an optional embodiment, the transceiver may include a receiver and / or a transmitter, and the receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, and interface may be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.

[0401] In some embodiments, the communication device 8100 further includes one or more memories 8103 for storing data. Alternatively, all or part of the memories 8103 may be located outside the communication device 8100. In alternative embodiments, the communication device 8100 may include one or more interface circuits 8104. Optionally, the interface circuits 8104 are connected to the memories 8103 and may be configured to receive data from the memories 8103 or other devices, or to send data to the memories 8103 or other devices. For example, the interface circuits 8104 may read data stored in the memories 8103 and send the data to the processor 8101.

[0402] The communication device 8100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 8100 described in the present disclosure is not limited thereto, and the structure of the communication device 8100 may not be limited by FIG. 8A. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0403] FIG8B is a schematic diagram of the structure of a chip 8200 according to an embodiment of the present disclosure. If the communication device 8100 can be a chip or a chip system, please refer to the schematic diagram of the structure of the chip 8200 shown in FIG8B , but the present disclosure is not limited thereto.

[0404] The chip 8200 includes one or more processors 8201. The chip 8200 is configured to execute any of the above methods.

[0405] In some embodiments, chip 8200 further includes one or more interface circuits 8202. Terms such as interface circuit, interface, and transceiver pins may be used interchangeably. In some embodiments, chip 8200 further includes one or more memories 8203 for storing data. Alternatively, all or part of memory 8203 may be located external to chip 8200. Optionally, interface circuit 8202 is connected to memory 8203 and may be used to receive data from memory 8203 or other devices, or may be used to send data to memory 8203 or other devices. For example, interface circuit 8202 may read data stored in memory 8203 and send the data to processor 8201.

[0406] In some embodiments, the interface circuit 8202 performs at least one of the communication steps, such as sending and / or receiving, in the above-described method. For example, the interface circuit 8202 performing the communication steps, such as sending and / or receiving, in the above-described method means that the interface circuit 8202 performs data exchange between the processor 8201, the chip 8200, the memory 8203, or the transceiver device. In some embodiments, the processor 8201 performs at least one of the other steps.

[0407] The modules and / or devices described in various embodiments, such as virtual devices, physical devices, and chips, can be arbitrarily combined or separated according to circumstances. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.

[0408] The present disclosure also proposes a storage medium having instructions stored thereon, which, when executed on the communication device 8100, causes the communication device 8100 to execute any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto, and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto, and may also be a temporary storage medium.

[0409] The present disclosure also provides a program product, which, when executed by the communication device 8100, enables the communication device 8100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0410] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.

Claims

1. A Bluetooth communication method, characterized in that: The method comprises: The first device performs Bluetooth communication with the second device according to the first channel list, where the first channel list includes at least one first channel and the available status of each first channel, where the first channel is a channel of a first frequency band, and the lowest frequency of the first frequency band is greater than or equal to 2.4 GHz.

2. The method according to claim 1, characterized in that The first frequency band includes at least one of a 5.1 GHz frequency band and a 5.8 GHz frequency band.

3. The method according to claim 1 or 2, characterized in that The available state of the first channel includes at least one of the following: a first state; a second state; a third state; The first state is used to indicate that the first channel can be used for bidirectional communication between the first device and the second device, the second state is used to indicate that the first channel cannot be used for bidirectional communication between the first device and the second device, and the third state is used to indicate that the availability status of the first channel is unknown.

4. The method according to claim 3, characterized in that The first device performs Bluetooth communication with the second device according to the first channel list, including: The first device preferentially uses the first channel whose available state is the first state to send Bluetooth data to the second device; or The first device does not use the first channel whose available state is the second state to send Bluetooth data to the second device.

5. The method according to claim 3 or 4, characterized in that The first device performs Bluetooth communication with the second device according to the first channel list, including: The first device uses the first channel in the first channel list whose available state is the first state and / or the third state to perform adaptive frequency hopping communication with the second device.

6. The method according to any one of claims 1 to 5, characterized in that The first device performs Bluetooth communication with the second device according to the first channel list, including: The first device performs Bluetooth communication with the second device using the first channel and determines an available status of the first channel.

7. The method according to claim 6, characterized in that The first device performs Bluetooth communication with the second device using the first channel and determines an available state of the first channel, including: The first device sends a data packet to the second device using the first channel; The first device determines that a response message sent by the second device is received, and sets the available state of the first channel to a first state; The first device determines that it has not received the response message sent by the second device, and sets the available state of the first channel to the second state.

8. The method according to claim 7, characterized in that The first device determines that the response message sent by the second device is not received, including at least one of the following: The first device determines that the data message is sent successfully but cannot correctly receive the response message; The first device determines that sending the data packet fails.

9. The method according to any one of claims 6 to 8, characterized in that: The first device performs Bluetooth communication with the second device using the first channel and determines an available state of the first channel, including: The first device performs energy detection on the first channel to determine channel interference of the first channel; The first device determines that the channel interference is greater than a preset interference threshold, and sets the available state of the first channel to a second state.

10. The method according to claim 9, characterized in that The first device sending a data message to the second device using the first channel includes: The first device determines that the channel interference is less than or equal to the preset interference threshold, and uses the first channel to send the data message to the second device.

11. The method according to any one of claims 6 to 10, characterized in that: The first device performs Bluetooth communication with the second device using the first channel and determines an available state of the first channel, including: Determining, by the first device, an equivalent occupancy rate corresponding to the first frequency band; The first device determines that the equivalent occupancy rate is less than or equal to a preset occupancy threshold, uses the first channel to perform Bluetooth communication with the second device, and determines an available status of the first channel.

12. The method according to claim 11, characterized in that The method comprises: The first device determines that the equivalent occupancy rate is greater than the preset occupancy threshold, does not send data packets in the current connection interval, and redetermines the equivalent occupancy rate in the next connection interval.

13. The method according to claim 11 or 12, characterized in that The preset occupancy threshold is less than or equal to 10%.

14. The method according to any one of claims 1 to 13, characterized in that The method comprises: The first device sends first information to the second device, where the first information is used to indicate the first channel list.

15. A Bluetooth communication method, characterized in that: The method comprises: The second device performs Bluetooth communication with the first device according to the first channel list, where the first channel list includes at least one first channel and the available status of the first channel, where the first channel is a channel of a first frequency band, and the lowest frequency of the first frequency band is greater than or equal to 2.4 GHz.

16. The method according to claim 15, characterized in that The first frequency band includes at least one of a 5.1 GHz frequency band and a 5.8 GHz frequency band.

17. The method according to claim 15 or 16, characterized in that The available state of the first channel includes at least one of the following: a first state; a second state; a third state; The first state is used to indicate that the first channel can be used for bidirectional communication between the first device and the second device, the second state is used to indicate that the first channel cannot be used for bidirectional communication between the first device and the second device, and the third state is used to indicate that the availability status of the first channel is unknown.

18. The method according to claim 17, characterized in that The second device performs Bluetooth communication with the first device according to the first channel list, including: The second device preferentially uses the first channel whose available state is the first state to receive the Bluetooth data sent by the first device; or The second device does not use the first channel whose available state is the second state to receive the Bluetooth data sent by the first device.

19. The method according to claim 17 or 18, characterized in that The second device performs Bluetooth communication with the first device according to the first channel list, including: The second device uses the first channel in the first channel list whose available state is the first state and / or the third state to perform adaptive frequency hopping communication with the first device.

20. The method according to any one of claims 15 to 19, characterized in that: The method comprises: The second device receives first information sent by the first device, where the first information is used to indicate the first channel list.

21. A first device, characterized in that: The first device includes: The transceiver module is used to perform Bluetooth communication with the second device according to the first channel list, wherein the first channel list includes at least one first channel and the available status of the first channel, the first channel is a channel of the first frequency band, and the lowest frequency of the first frequency band is greater than or equal to 2.4 GHz.

22. A second device, characterized in that: The second device includes: The transceiver module is used to perform Bluetooth communication with the first device according to the first channel list, the first channel list includes at least one first channel and the available status of the first channel, the first channel is a channel of the first frequency band, and the lowest frequency of the first frequency band is greater than or equal to 2.4 GHz.

23. A first device, characterized in that: include: one or more processors; A memory coupled to the one or more processors, the memory comprising executable instructions, which, when executed by the one or more processors, enable the first device to execute the Bluetooth communication method according to any one of claims 1 to 14.

24. A second device, characterized in that: include: one or more processors; A memory coupled to the one or more processors, the memory comprising executable instructions, which, when executed by the one or more processors, enable the second device to execute the Bluetooth communication method according to any one of claims 15 to 20.

25. A communication system, characterized in that: The method comprises a first device and a second device, wherein the first device is configured to implement the Bluetooth communication method according to any one of claims 1 to 14, and the second device is configured to implement the Bluetooth communication method according to any one of claims 15 to 20.

26. A storage medium storing instructions, characterized in that: When the instruction is executed on a communication device, the communication device is enabled to execute the Bluetooth communication method according to any one of claims 1 to 14 or claims 15 to 20.

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