Communication method and apparatus

Abstract

A communication method and apparatus, relating to the technical field of communications, and capable of achieving a targeted design for the power control and coverage range of a low-order data channel and a high-order data channel, improving the communication performance of a communication system. The method comprises: in a first time period of a first superframe, sending first data to a terminal node at a first transmission power; and in a second time period of the first superframe, sending second data to the terminal node at a second transmission power, wherein the modulation order of the first data is greater than that of the second data, and the first transmission power differs from the second transmission power.

Description

Communication method and device

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on March 29, 2024, with application number 202410391115.1 and application name “Communication Method and Device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communication technology, and in particular to a communication method and device. Background Art

[0003] In a vehicle-mounted wireless short-range communication system, a grant node (G node) can send downlink signals to a terminal node (T node), and a T node can send uplink signals to a G node to enable communication between the G node and the T node.

[0004] However, when the G node sends a downlink signal to the T node, the transmission power corresponding to all downlink signals is the same, which will affect the communication performance of the communication system. Summary of the Invention

[0005] The present application provides a communication method and apparatus that can achieve targeted design of power control and coverage of low-order data channels and high-order data channels, thereby improving the communication performance of the communication system.

[0006] In the first aspect, an embodiment of the present application provides a communication method, which can be executed by a management node. Unless otherwise specified, the "management node" in this application can refer to the management node itself, or a component in the management node (such as a processor, chip, or chip system, etc.), or a logic module or software that can implement all or part of the management node function. The method includes: sending first data to a terminal node at a first transmission power in a first time period of a first superframe; and sending second data to the terminal node at a second transmission power in a second time period of the first superframe. The modulation order of the first data is greater than the modulation order of the second data; and the first transmission power is different from the second transmission power.

[0007] Based on the first aspect, the management node can use different transmission powers to send data of different modulation orders in different time periods of the same superframe. Low-order data and high-order data can be scheduled simultaneously through a single superframe. At the same time, targeted design of power control and coverage range of low-order data channels and high-order data channels is realized, instead of using a unified transmission power to send all downlink signals, which can improve the coverage performance and anti-interference performance of the communication system.

[0008] In one possible design, the end time of the first time period is earlier than or equal to the start time of the second time period.

[0009] Based on this possible design, by sending the second data after the first data (or sending the low-order data after the high-order data), it is possible to avoid the transmission power switching affecting the signal quality of subsequent high-order data and avoid the transmission power jump interfering with the high-order data.

[0010] In one possible design, the first transmit power is less than the second transmit power.

[0011] Based on this possible design, for coverage enhancement scenarios, the management node can use a second transmit power higher than the first transmit power of the first data when sending the second data. The coverage of the low-order data channel is no longer limited by the transmit power of the high-order data channel. By increasing the transmit power of the low-order data channel, the coverage of the low-order data channel can be enhanced.

[0012] In one possible design, a first indication message is sent to the terminal node; wherein the first indication message is used to indicate a power offset, the value of the power offset is a non-negative number, and the power offset is the difference between the transmission power of the common channel and the possible maximum transmission power value of the data channel within a preset time.

[0013] Based on this possible design, the management node sends first indication information to the terminal node; the terminal node can adjust the AGC gear according to the first indication information to improve the receiving sensitivity and improve the communication performance.

[0014] In one possible design, common channel information is sent using a second transmission power during a third time period of a first superframe; wherein the end time of the third time period is earlier than the start time of the first time period.

[0015] Based on this possible design, for coverage enhancement scenarios, the management node can use the same second transmit power as the second data when sending common channel information, ensuring that the common channel matches the capabilities of low-order data channels. Furthermore, the coverage of the common channel is no longer limited by the transmit power of the high-order data channel. By increasing the transmit power of the common channel, the coverage of the common channel can be enhanced.

[0016] In one possible design, the first transmission power is greater than the second transmission power.

[0017] Based on this possible design, for dense deployment scenarios, when the management node sends the second data, it can use a second transmission power that is lower than the first transmission power of the first data. By reducing the transmission power of low-order data channels, the coverage of low-order data channels can be reduced, and inter-cell interference can be reduced. In addition, compared with the performance limitation of high-order data channels caused by uniformly reducing the transmission power, this possible design does not require reducing the transmission power of high-order data channels, thereby ensuring high throughput, avoiding the situation where the coverage of high-order data channels becomes smaller or even unable to provide communication services after uniformly reducing the transmission power, and improving communication performance.

[0018] In one possible design, a second indication message is sent to the terminal node; wherein the second indication message is used to indicate a power offset, the power offset is a negative number, and the power offset is the difference between the transmission power of the common channel and the possible maximum transmission power value of the data channel within a preset time.

[0019] Based on this possible design, the management node sends a second indication message to the terminal node; the terminal node can adjust the AGC gear according to the second indication message to avoid signal distortion caused by excessive power entering a saturated state, thereby improving signal quality.

[0020] In one possible design, common channel information is sent using the second transmission power during the third time period of the first superframe; or, common channel information is sent using the third transmission power during the third time period of the first superframe; wherein the end time of the third time period is earlier than the start time of the first time period; the third transmission power is less than the first transmission power, and the third transmission power is less than the second transmission power.

[0021] Based on this possible design, for dense deployment scenarios, the management node can use the same second transmit power as the second data when sending common channel information, so that the common channel matches the capabilities of the low-order data channel. In addition, by reducing the transmit power of the common channel, the coverage range of the common channel can be reduced, reducing inter-cell interference. At the same time, it can also prevent T nodes in cells of other G nodes from frequently attempting to access the current cell.

[0022] Alternatively, when the management node sends common channel information, it can also use a third transmission power that is less than the second transmission power. By reducing the transmission power of the common channel, the coverage of the common channel can be reduced, and the interference between cells can be reduced. At the same time, it can also avoid T nodes in cells of other G nodes frequently attempting to access the current cell.

[0023] In one possible design, a power switching reserved symbol PSRS is sent using a fourth transmission power in a fourth time period of the first superframe; wherein the end time of the fourth time period is earlier than or equal to the start time of the first time period; and the fourth transmission power is the maximum value of the transmission power of the data channel in the superframe where the PSRS is located.

[0024] Based on this possible design, the management node can send PSRS before sending the first data, and can perform power switching when sending PSRS, that is, the sending time of PSRS can be understood as the power adjustment time, or as the power change transition time, thereby avoiding the interference of transmission power jumps on high-order data.

[0025] In a second aspect, an embodiment of the present application provides a communication method, which can be executed by a terminal node. Unless otherwise specified, the "terminal node" in this application can refer to the terminal node itself, or a component in the terminal node (such as a processor, chip, or chip system, etc.), or a logic module or software that can implement all or part of the terminal node function. The method includes: receiving first data from a management node at a first receiving power in a first time period of a first superframe; receiving second data from the management node at a second receiving power in a second time period of the first superframe; wherein the modulation order of the first data is greater than the modulation order of the second data; and the first receiving power is different from the second receiving power.

[0026] Based on the second aspect, the terminal node can use different receiving powers to receive data of different modulation orders in different time periods of the same superframe. Low-order data and high-order data can be scheduled simultaneously through a single superframe. At the same time, targeted design of power control and coverage range of low-order data channels and high-order data channels is realized, instead of using a unified receiving power to receive all downlink signals, which can improve the coverage performance and anti-interference performance of the communication system.

[0027] In one possible design, the end time of the first time period is earlier than or equal to the start time of the second time period.

[0028] In one possible design, the first receiving power is less than the second receiving power.

[0029] In one possible design, a first indication message is received from a management node; wherein the first indication message is used to indicate a power offset, the value of the power offset is a non-negative number, and the power offset is the difference between the transmission power of the common channel and the possible maximum transmission power value of the data channel within a preset time; according to the first indication message, the automatic gain control AGC gear is adjusted.

[0030] In one possible design, during the third time period of the first superframe, common channel information is received from the management node via the second receiving power; wherein the end time of the third time period is earlier than the start time of the first time period.

[0031] In one possible design, the first received power is greater than the second received power.

[0032] In one possible design, a second indication message is received from the management node; wherein the second indication message is used to indicate a power offset, the power offset is a negative number, and the power offset is the difference between the transmission power of the common channel and the possible maximum transmission power value of the data channel within a preset time; according to the second indication message, the automatic gain control AGC gear is adjusted.

[0033] In one possible design, during the third time period of the first superframe, common channel information from the management node is received through the second receiving power; or, during the third time period of the first superframe, common channel information from the management node is received through the third receiving power; wherein, the end time of the third time period is earlier than the start time of the first time period; the third receiving power is less than the first receiving power, and the third receiving power is less than the second receiving power.

[0034] In one possible design, during the fourth time period of the first superframe, the PSRS from the management node is received through a fourth receiving power; wherein the end time of the fourth time period is earlier than or equal to the start time of the first time period; and the fourth receiving power is the maximum value of the receiving power of the data channel in the superframe where the PSRS is located.

[0035] In one possible design, the AGC gear is adjusted according to the PSRS.

[0036] Among them, the technical effects that can be achieved by the above-mentioned various possible designs can be referred to the relevant description in the above-mentioned first aspect and will not be repeated here.

[0037] In a third aspect, an embodiment of the present application provides a communication method that can be executed by a management node. Unless otherwise specified, the "management node" in this application can refer to the management node itself, or a component in the management node (such as a processor, chip, or chip system, etc.), or a logic module or software that can implement all or part of the management node functions. The method includes: in a second superframe, sending first data to a terminal node at a first transmission power; in a third superframe, sending second data to the terminal node at a second transmission power; wherein the modulation order of the first data is greater than the modulation order of the second data; and the first transmission power is different from the second transmission power.

[0038] Based on the third aspect, the management node can use different transmission powers to send data of different modulation orders in different superframes, realizing targeted design of power control and coverage range of low-order data channels and high-order data channels, instead of using a unified transmission power to send all downlink signals, which can improve the coverage performance and anti-interference performance of the communication system.

[0039] In one possible design, the first transmit power is less than the second transmit power.

[0040] Based on this possible design, for coverage enhancement scenarios, when the management node sends the second data, it can use a second transmit power that is higher than the first transmit power of the first data. The coverage of the low-order data channel is no longer limited by the transmit power of the high-order data channel. By increasing the transmit power of the low-order data channel, the coverage of the low-order data channel can be enhanced. Furthermore, high-order and low-order data are transmitted in different superframes, ensuring that the low-order data can be transmitted at the maximum transmit power without affecting the signal quality of the high-order data.

[0041] In one possible design, a first indication message is sent to the terminal node; wherein the first indication message is used to indicate a power offset, the value of the power offset is a non-negative number, and the power offset is the difference between the transmission power of the common channel and the possible maximum transmission power value of the data channel within a preset time.

[0042] Based on this possible design, the management node sends first indication information to the terminal node, which enables the terminal node to adjust the AGC gear according to the first indication information to improve receiving sensitivity and communication performance.

[0043] In one possible design, in the second superframe, before sending the first data, common channel information is sent using the second transmission power; and / or, in the third superframe, before sending the third data, common channel information is sent using the second transmission power.

[0044] Based on this possible design, for coverage enhancement scenarios, the management node can use the same second transmit power as the second data when sending common channel information, ensuring that the common channel matches the capabilities of low-order data channels. Furthermore, the coverage of the common channel is no longer limited by the transmit power of the high-order data channel. By increasing the transmit power of the common channel, the coverage of the common channel can be enhanced.

[0045] In one possible design, the first transmission power is greater than the second transmission power.

[0046] Based on this possible design, for dense deployment scenarios, when the management node sends the second data, it can use a second transmission power that is lower than the first transmission power of the first data. By reducing the transmission power of the low-order data channel, the coverage of the low-order data channel can be reduced, and the interference between cells can be reduced. In addition, compared with the performance limitation of the high-order data channel caused by uniformly reducing the transmission power, the second possible design does not need to reduce the transmission power of the high-order data channel, thereby ensuring high throughput, avoiding the coverage of the high-order data channel becoming smaller or even unable to provide communication services after uniformly reducing the transmission power, and improving communication performance.

[0047] In one possible design, a second indication message is sent to the terminal node; wherein the second indication message is used to indicate a power offset, the power offset is a negative number, and the power offset is the difference between the transmission power of the common channel and the possible maximum transmission power value of the data channel within a preset time.

[0048] Based on this possible design, the management node sends a second indication message to the terminal node, which enables the terminal node to adjust the AGC gear according to the second indication message to avoid signal distortion caused by excessive power entering a saturated state and improving signal quality.

[0049] In one possible design, before sending the first data in the second superframe, common channel information is sent through the second transmission power; or, before sending the first data in the second superframe, common channel information is sent through the third transmission power; wherein the third transmission power is less than the first transmission power, and the third transmission power is less than the second transmission power.

[0050] In one possible design, within the third superframe, before sending the second data, common channel information is sent through the second transmission power; or, within the third superframe, before sending the second data, common channel information is sent through the third transmission power; wherein the third transmission power is less than the first transmission power, and the third transmission power is less than the second transmission power.

[0051] Based on the two possible designs described above, for dense deployment scenarios, when the management node sends common channel information, it can use the same second transmit power as the second data, so that the common channel matches the capabilities of the low-order data channel. Alternatively, a third transmit power that is less than the second transmit power can be used. By reducing the transmit power of the common channel, the coverage range of the common channel can be reduced, reducing inter-cell interference. At the same time, it can also prevent T nodes in cells of other G nodes from frequently attempting to access the current cell.

[0052] In one possible design, in the second superframe, before sending the first data, PSRS is sent using a fourth transmission power; and / or, in the third superframe, before sending the second data, PSRS is sent using a fourth transmission power; wherein the fourth transmission power is the maximum value of the transmission power of the data channel in the superframe where the PSRS is located.

[0053] Based on this possible design, the management node can send PSRS before sending the first data or the second data, and can perform power switching when sending PSRS, that is, the sending time of PSRS can be understood as the power adjustment time, or as the power change transition time, thereby avoiding the interference of the transmission power jump on the first data or the second data.

[0054] Fourthly, an embodiment of the present application provides a communication method that can be executed by a terminal node. Unless otherwise specified, the "terminal node" in this application can refer to the terminal node itself, or a component in the terminal node (such as a processor, chip, or chip system, etc.), or a logic module or software that can implement all or part of the terminal node functions. The method includes: receiving first data from a management node at a first receiving power within a second superframe; receiving second data from the management node at a second receiving power within a third superframe; wherein the modulation order of the first data is greater than the modulation order of the second data; and the first receiving power is different from the second receiving power.

[0055] Based on the fourth aspect, the terminal node can use different receiving powers to receive data of different modulation orders in different superframes, realizing targeted design of power control and coverage range of low-order data channels and high-order data channels, instead of using a unified receiving power to receive all downlink signals, which can improve the coverage performance and anti-interference performance of the communication system.

[0056] In one possible design, the first receiving power is less than the second receiving power.

[0057] In one possible design, a first indication message is received from a management node; wherein the first indication message is used to indicate a power offset, the value of the power offset is a non-negative number, and the power offset is the difference between the transmission power of the common channel and the possible maximum transmission power value of the data channel within a preset time; according to the first indication message, the automatic gain control AGC gear is adjusted.

[0058] In one possible design, within the second superframe, common channel information from the management node is received using the second receiving power; and / or, within the third superframe, common channel information from the management node is received using the second receiving power.

[0059] In one possible design, the first received power is greater than the second received power.

[0060] In one possible design, a second indication message is received from the management node; wherein the second indication message is used to indicate a power offset, the power offset is a negative number, and the power offset is the difference between the transmission power of the common channel and the possible maximum transmission power value of the data channel within a preset time; according to the second indication message, the automatic gain control AGC gear is adjusted.

[0061] In one possible design, within the second superframe, common channel information from the management node is received through a second receiving power; or, within the second superframe, common channel information from the management node is received through a third receiving power; wherein the third receiving power is less than the first receiving power, and the third receiving power is less than the second receiving power.

[0062] In one possible design, within the third superframe, common channel information from the management node is received through the second receiving power; or, within the third superframe, common channel information from the management node is received through the third receiving power; wherein the third receiving power is less than the first receiving power, and the third receiving power is less than the second receiving power.

[0063] In one possible design, within the second superframe, the PSRS from the management node is received through a fourth receiving power; and / or, within the third superframe, the PSRS from the management node is received through a fourth receiving power; wherein the fourth receiving power is the maximum value of the receiving power of the data channel in the superframe where the PSRS is located.

[0064] In one possible design, the AGC gear is adjusted according to the PSRS.

[0065] Among them, the technical effects that can be achieved by the above-mentioned various possible designs can be referred to the relevant description in the above-mentioned third aspect and will not be repeated here.

[0066] In a fifth aspect, an embodiment of the present application provides a communication device for realizing the transmission of star flash signals. The communication device can be applied to the management node of the first aspect above to realize the functions performed by the management node above. The communication device can be a management node, or a chip or chip system or system on chip of the management node, etc. The communication device can execute the functions performed by the management node above through hardware, or can execute the corresponding software implementation through hardware. The hardware or software includes one or more modules corresponding to the above functions. For example: a module for sending first data to a terminal node through a first transmission power in a first time period of a first superframe; a module for sending second data to a terminal node through a second transmission power in a second time period of the first superframe; wherein the modulation order of the first data is greater than the modulation order of the second data; and the first transmission power is different from the second transmission power.

[0067] In one possible design, the communication device also includes: a module for sending first indication information to the terminal node; wherein the first indication information is used to indicate a power offset, the value of the power offset is a non-negative number, and the power offset is the difference between the transmission power of the common channel and the possible maximum transmission power value of the data channel within a preset time.

[0068] In one possible design, the communication device also includes: a module for sending common channel information through a second transmission power within a third time period of the first superframe; wherein the end time of the third time period is earlier than the start time of the first time period.

[0069] In one possible design, the communication device also includes: a module for sending second indication information to the terminal node; wherein the second indication information is used to indicate a power offset, the power offset is a negative number, and the power offset is the difference between the transmission power of the common channel and the possible maximum transmission power value of the data channel within a preset time.

[0070] In one possible design, the communication device also includes: a module for sending common channel information through a second transmission power within a third time period of the first superframe; or a module for sending common channel information through a third transmission power within a third time period of the first superframe; wherein the end time of the third time period is earlier than the start time of the first time period; the third transmission power is less than the first transmission power, and the third transmission power is less than the second transmission power.

[0071] In one possible design, the communication device also includes: a module for sending PSRS through a fourth transmission power within a fourth time period of the first superframe; wherein the end time of the fourth time period is earlier than or equal to the start time of the first time period; and the fourth transmission power is the maximum value of the transmission power of the data channel in the superframe where the PSRS is located.

[0072] In the sixth aspect, an embodiment of the present application provides a communication device for realizing the transmission of star flash signals. The communication device can be applied to the management node of the third aspect above to realize the functions performed by the management node above. The communication device can be a management node, or a chip or chip system or system on chip of the management node, etc. The communication device can execute the functions performed by the management node above through hardware, or can execute the corresponding software through hardware. The hardware or software includes one or more modules corresponding to the above functions. For example: a module for sending first data to a terminal node through a first transmission power in a second superframe; a module for sending second data to a terminal node through a second transmission power in a third superframe; wherein the modulation order of the first data is greater than the modulation order of the second data; and the first transmission power is different from the second transmission power.

[0073] In one possible design, the communication device also includes: a module for sending first indication information to the terminal node; wherein the first indication information is used to indicate a power offset, the value of the power offset is a non-negative number, and the power offset is the difference between the transmission power of the common channel and the possible maximum transmission power value of the data channel within a preset time.

[0074] In one possible design, the communication device also includes: a module for sending common channel information through the second transmission power before sending the first data in the second superframe; and / or a module for sending common channel information through the second transmission power before sending the third data in the third superframe.

[0075] In one possible design, the communication device also includes: a module for sending second indication information to the terminal node; wherein the second indication information is used to indicate a power offset, the power offset is a negative number, and the power offset is the difference between the transmission power of the common channel and the possible maximum transmission power value of the data channel within a preset time.

[0076] In one possible design, the communication device also includes: a module for sending common channel information through a second transmission power before sending the first data in the second superframe; or a module for sending common channel information through a third transmission power before sending the first data in the second superframe; wherein the third transmission power is less than the first transmission power, and the third transmission power is less than the second transmission power.

[0077] In one possible design, the communication device also includes: a module for sending common channel information through a second transmission power before sending the second data in a third superframe; or, a module for sending common channel information through a third transmission power before sending the second data in the third superframe; wherein the third transmission power is less than the first transmission power, and the third transmission power is less than the second transmission power.

[0078] In one possible design, the communication device also includes: a module for sending a power switching reserved symbol PSRS at a fourth transmission power before sending the first data in the second superframe; and / or a module for sending PSRS at a fourth transmission power before sending the second data in the third superframe; wherein the fourth transmission power is the maximum value of the transmission power of the data channel in the superframe where the PSRS is located.

[0079] In combination with the above-mentioned fifth aspect or sixth aspect, in one possible design, the communication device is also used to realize the transmission of Bluetooth signals or wireless fidelity WiFi signals, and at least one module among the Star Flash module, Bluetooth module and WiFi module shares the radio frequency RF unit.

[0080] In combination with the above-mentioned fifth aspect or sixth aspect, in one possible design, the communication device is also used to realize the transmission of Bluetooth signals, but does not support the transmission of WiFi signals. The Star Flash module and the Bluetooth module are located in the same subsystem of the communication device, and the subsystem and the power management module PMU are integrated in the communication device.

[0081] In combination with the above-mentioned fifth aspect or sixth aspect, in one possible design, the communication device is also used to realize the transmission of Bluetooth signals or WiFi signals, and at least one of the Bluetooth modules or WiFi modules coexists and communicates with the Star Flash module through different antennas, and the coexistence strategy is channel avoidance.

[0082] In combination with the above-mentioned fifth aspect or sixth aspect, in one possible design, the communication device is also used to: determine the type of the opposite device and / or the service delay of the opposite device, and determine the link corresponding to the opposite device and / or the service for data transmission based on the link selection strategy.

[0083] In combination with the above-mentioned fifth aspect or sixth aspect, in one possible design, the communication device is also used to: determine the type of the opposite device and / or the service delay of the opposite device, including: determining the type of the opposite device, the type of the opposite device includes an audio device type or a non-audio device type; when the type of the opposite device is an audio device type, determining the service delay of the opposite device.

[0084] In combination with the above-mentioned fifth aspect or sixth aspect, in a possible design, the link selection strategy includes: when the service delay is greater than the first value, establishing an asynchronous unicast link or an asynchronous multicast link and then performing data transmission; or, when the service delay is less than the first value and greater than the second value, establishing an asynchronous unicast link or an asynchronous multicast link, and performing data transmission after synchronization is achieved by adding timestamps to data packets; or, when the service delay is less than the second value, first establishing an asynchronous unicast link, and then establishing a synchronous unicast link or a synchronous multicast link and then performing data transmission.

[0085] In combination with the above-mentioned fifth aspect or sixth aspect, in a possible design, the communication device is also used to: determine the type of the opposite device and / or the service delay of the opposite device, and determine the frame format type corresponding to the type of the opposite device and / or the service type of the opposite device according to the frame format selection strategy; wherein the frame format type includes Star Flash Wireless Frame Type 1, Star Flash Wireless Frame Type 2, Star Flash Wireless Frame Type 3 or Star Flash Wireless Frame Type 4.

[0086] In combination with the above-mentioned fifth aspect or sixth aspect, in one possible design, the communication device is also used to: determine the type of the opposite device and / or the service delay of the opposite device, including: determining the type of the opposite device, the type of the opposite device includes an audio device type or a non-audio device type; when the type of the opposite device is an audio device type, determining the service delay of the opposite device.

[0087] In combination with the above-mentioned fifth aspect or sixth aspect, in a possible design, the frame format selection strategy includes: when the service delay of the opposite device is less than the first duration, selecting Star Flash wireless frame type 1 for broadcast access, and switching to Star Flash wireless frame type 2 through physical layer parameter negotiation after the connection state; or, when the service delay of the opposite device is less than the first duration and the service anti-interference capability requirement is greater than the set threshold, selecting Star Flash wireless frame type 1 for broadcast access, and switching to Star Flash wireless frame type 2 or Star Flash wireless frame type 3 through physical layer parameter negotiation after entering the connection state; or, when the type of the opposite device is a device that only supports Star Flash wireless frame type 1, or a device with a maximum transmission power greater than the first power threshold, selecting Star Flash wireless frame type 1 for broadcast access; or, when the service type of the opposite device is an Internet of Things (IoT) ultra-long-distance coverage service, when the distance between the opposite device and the communication device is greater than the first threshold, selecting Star Flash wireless frame type 4 for broadcast and connection, or, when the distance between the opposite device and the communication device is less than or equal to the first threshold, switching to Star Flash wireless frame type 2 or Star Flash wireless frame type 3 through physical layer parameter negotiation.

[0088] In the seventh aspect, an embodiment of the present application provides a communication device for realizing the transmission of star flash signals. The communication device can be applied to the terminal node of the second aspect above to realize the functions performed by the terminal node above. The communication device can be a terminal node, or a chip or chip system or system on chip of the terminal node, etc. The communication device can execute the functions performed by the terminal node above through hardware, or can execute the corresponding software implementation through hardware. The hardware or software includes one or more modules corresponding to the above functions. For example, a module for receiving first data from a management node through a first receiving power in a first time period of a first superframe; a module for receiving second data from a management node through a second receiving power in a second time period of the first superframe; wherein the modulation order of the first data is greater than the modulation order of the second data; and the first receiving power is different from the second receiving power.

[0089] In one possible design, the communication device also includes: a module for receiving first indication information from a management node; wherein the first indication information is used to indicate a power offset, the value of the power offset is a non-negative number, and the power offset is the difference between the transmission power of the common channel and the possible maximum transmission power value of the data channel within a preset time; and a module for adjusting the automatic gain control AGC gear according to the first indication information.

[0090] In one possible design, the communication device also includes: a module for receiving common channel information from the management node through a second receiving power within a third time period of the first superframe; wherein the end time of the third time period is earlier than the start time of the first time period.

[0091] In one possible design, the communication device also includes: a module for receiving second indication information from a management node; wherein the second indication information is used to indicate a power offset, the power offset is a negative number, and the power offset is the difference between the transmission power of the common channel and the possible maximum transmission power value of the data channel within a preset time; and a module for adjusting the automatic gain control AGC gear according to the second indication information.

[0092] In one possible design, the communication device also includes: a module for receiving common channel information from the management node through a second receiving power within a third time period of the first superframe; or, a module for receiving common channel information from the management node through a third receiving power within a third time period of the first superframe; wherein the end time of the third time period is earlier than the start time of the first time period; the third receiving power is less than the first receiving power, and the third receiving power is less than the second receiving power.

[0093] In one possible design, the communication device also includes: a module for receiving a power switching reservation symbol PSRS from the management node through a fourth receiving power within a fourth time period of the first superframe; wherein the end time of the fourth time period is earlier than or equal to the start time of the first time period; and the fourth receiving power is the maximum value of the receiving power of the data channel in the superframe where the PSRS is located.

[0094] In one possible design, the communication device also includes: a module for adjusting the AGC gear position according to PSRS.

[0095] In an eighth aspect, an embodiment of the present application provides a communication device for realizing the transmission of star flash signals. The communication device can be applied to the terminal node of the fourth aspect above to realize the functions performed by the terminal node above. The communication device can be a terminal node, or a chip or chip system or system on chip of the terminal node, etc. The communication device can execute the functions performed by the terminal node above through hardware, or can execute the corresponding software implementation through hardware. The hardware or software includes one or more modules corresponding to the above functions. For example, a module for receiving first data from a management node through a first receiving power in a second superframe; a module for receiving second data from a management node through a second receiving power in a third superframe; wherein the modulation order of the first data is greater than the modulation order of the second data; and the first receiving power is different from the second receiving power.

[0096] In one possible design, the communication device also includes: a module for receiving first indication information from a management node; wherein the first indication information is used to indicate a power offset, the value of the power offset is a non-negative number, and the power offset is the difference between the transmission power of the common channel and the possible maximum transmission power value of the data channel within a preset time; and a module for adjusting the automatic gain control AGC gear according to the first indication information.

[0097] In one possible design, the communication device also includes: a module for receiving common channel information from the management node through the second receiving power within the second superframe; and / or, a module for receiving common channel information from the management node through the second receiving power within the third superframe.

[0098] In one possible design, the communication device also includes: a module for receiving second indication information from a management node; wherein the second indication information is used to indicate a power offset, the power offset is a negative number, and the power offset is the difference between the transmission power of the common channel and the possible maximum transmission power value of the data channel within a preset time; and a module for adjusting the automatic gain control AGC gear according to the second indication information.

[0099] In one possible design, the communication device also includes: a module for receiving common channel information from the management node through a second receiving power within a second superframe; or, a module for receiving common channel information from the management node through a third receiving power within the second superframe; wherein the third receiving power is less than the first receiving power, and the third receiving power is less than the second receiving power.

[0100] In one possible design, the communication device also includes: a module for receiving common channel information from the management node through a second receiving power within a third superframe; or, a module for receiving common channel information from the management node through a third receiving power within the third superframe; wherein the third receiving power is less than the first receiving power, and the third receiving power is less than the second receiving power.

[0101] In one possible design, the communication device also includes: a module for receiving a power switching reserved symbol PSRS from the management node through a fourth receiving power within the second superframe; and / or, a module for receiving a PSRS from the management node through a fourth receiving power within the third superframe; wherein the fourth receiving power is the maximum value of the receiving power of the data channel in the superframe where the PSRS is located.

[0102] In one possible design, the communication device also includes: a module for adjusting the AGC gear position according to PSRS.

[0103] In combination with the above-mentioned seventh aspect or eighth aspect, in one possible design, the communication device is also used to realize the transmission of Bluetooth signals or wireless fidelity WiFi signals, and at least one module among the Star Flash module, Bluetooth module and WiFi module shares the radio frequency RF unit.

[0104] In combination with the above-mentioned seventh aspect or eighth aspect, in one possible design, the communication device is also used to realize the transmission of Bluetooth signals, but does not support the transmission of WiFi signals. The Star Flash module and the Bluetooth module are located in the same subsystem of the communication device, and the subsystem and the power management module PMU are integrated in the communication device.

[0105] In combination with the above-mentioned seventh aspect or eighth aspect, in one possible design, the communication device is also used to realize the transmission of Bluetooth signals or WiFi signals, and at least one of the Bluetooth modules or WiFi modules coexists and communicates with the Star Flash module through different antennas, and the coexistence strategy is channel avoidance.

[0106] In combination with the above-mentioned seventh aspect or eighth aspect, in one possible design, the communication device is also used to: determine the type of the opposite device and / or the service delay of the opposite device, and determine the link corresponding to the opposite device and / or the service for data transmission based on the link selection strategy.

[0107] In combination with the above-mentioned seventh aspect or eighth aspect, in one possible design, the communication device is also used to: determine the type of the opposite device and / or the service delay of the opposite device, including: determining the type of the opposite device, the type of the opposite device includes an audio device type or a non-audio device type; when the type of the opposite device is an audio device type, determining the service delay of the opposite device.

[0108] In combination with the above-mentioned seventh aspect or eighth aspect, in a possible design, the link selection strategy includes: when the service delay is greater than the first value, establishing an asynchronous unicast link or an asynchronous multicast link and then transmitting data; or, when the service delay is less than the first value and greater than the second value, establishing an asynchronous unicast link or an asynchronous multicast link, and performing data transmission after synchronization is achieved by adding timestamps to data packets; or, when the service delay is less than the second value, first establishing an asynchronous unicast link, and then establishing a synchronous unicast link or a synchronous multicast link and then performing data transmission.

[0109] In combination with the above-mentioned seventh aspect or eighth aspect, in one possible design, when the communication device is a non-audio device, the communication device is also used to: transmit data via an asynchronous unicast or asynchronous multicast link.

[0110] In combination with the above-mentioned seventh aspect or eighth aspect, in a possible design, the communication device is also used to: determine the type of the opposite device and / or the service delay of the opposite device, and determine the frame format type corresponding to the type of the opposite device and / or the service type of the opposite device according to the frame format selection strategy; wherein the frame format type includes Star Flash Wireless Frame Type 1, Star Flash Wireless Frame Type 2, Star Flash Wireless Frame Type 3 or Star Flash Wireless Frame Type 4.

[0111] In combination with the above-mentioned seventh aspect or eighth aspect, in one possible design, the communication device is also used to: determine the type of the opposite device and / or the service delay of the opposite device, including: determining the type of the opposite device, the type of the opposite device includes an audio device type or a non-audio device type; when the type of the opposite device is an audio device type, determining the service delay of the opposite device.

[0112] In combination with the above-mentioned seventh aspect or eighth aspect, in a possible design, the frame format selection strategy includes: when the service delay of the opposite device is less than the first duration, selecting Star Flash wireless frame type 1 for broadcast access, and switching to Star Flash wireless frame type 2 through physical layer parameter negotiation after the connection state; or, when the service delay of the opposite device is less than the first duration and the service anti-interference capability requirement is greater than the set threshold, selecting Star Flash wireless frame type 1 for broadcast access, and switching to Star Flash wireless frame type 2 or Star Flash wireless frame type 3 through physical layer parameter negotiation after entering the connection state; or, when the type of the opposite device is a device that only supports Star Flash wireless frame type 1, or a device with a maximum transmission power greater than the first power threshold, selecting Star Flash wireless frame type 1 for broadcast access; or, when the service type of the opposite device is an Internet of Things (IoT) ultra-long-distance coverage service, when the distance between the opposite device and the communication device is greater than the first threshold, selecting Star Flash wireless frame type 4 for broadcast and connection, or, when the distance between the opposite device and the communication device is less than or equal to the first threshold, switching to Star Flash wireless frame type 2 or Star Flash wireless frame type 3 through physical layer parameter negotiation.

[0113] In combination with the above-mentioned seventh aspect or eighth aspect, in a possible design, when the communication device is a non-audio device, the communication device is also used to: select Starflash wireless frame type 1 for broadcast access, and after entering the connection state, switch to Starflash wireless frame type 2 for data transmission through physical layer parameter negotiation.

[0114] In the ninth aspect, an embodiment of the present application provides a communication device, which includes one or more processors; one or more processors are used to run computer programs or instructions, and when the one or more processors execute the computer instructions or instructions, the communication method described in any one of the first to fourth aspects is executed.

[0115] In one possible design, the communication device further includes one or more memories, the one or more memories being coupled to one or more processors, and the one or more memories being used to store the above-mentioned computer programs or instructions. In one possible implementation, the memory is located outside the communication device. In another possible implementation, the memory is located within the communication device. In an embodiment of the present application, the processor and the memory may also be integrated into one device, that is, the processor and the memory may also be integrated together. In one possible implementation, the communication device further includes a transceiver, and the transceiver is used to receive information and / or send information.

[0116] In one possible design, the communication device further includes one or more communication interfaces, the one or more communication interfaces are coupled to one or more processors, and the one or more communication interfaces are used to communicate with other modules outside the communication device.

[0117] In the tenth aspect, an embodiment of the present application provides a communication device, which includes an interface circuit and a logic circuit; the interface circuit is used to input and / or output information; the logic circuit is used to execute the communication method described in any one of the first to fourth aspects, and process and / or generate information based on the information.

[0118] In the eleventh aspect, an embodiment of the present application provides a computer-readable storage medium, which stores computer instructions or programs. When the computer instructions or programs are run on a computer, the communication method described in any one of the first to fourth aspects is executed.

[0119] In a twelfth aspect, an embodiment of the present application provides a computer program product comprising computer instructions, which, when executed on a computer, enables the communication method described in any one of the first to fourth aspects to be executed.

[0120] In a thirteenth aspect, an embodiment of the present application provides a computer program, which, when executed on a computer, enables the communication method described in any one of the first to fourth aspects to be executed.

[0121] In the fourteenth aspect, an embodiment of the present application provides a chip, comprising: a processor, the processor being coupled to a memory, the memory being used to store programs or instructions, and when the programs or instructions are executed by the processor, the communication method described in any one of the first to fourth aspects is executed.

[0122] Among them, the technical effects brought about by any design method in the ninth to fourteenth aspects can refer to the technical effects brought about by any one of the first to fourth aspects mentioned above, and will not be repeated here.

[0123] In aspect fifteen, an embodiment of the present application provides a communication system, which may include a communication device for executing the method described in the first aspect or any possible design of the first aspect, and a communication device for executing the method described in the second aspect or any possible design of the second aspect; or may include a communication device for executing the method described in the third aspect or any possible design of the third aspect, and a communication device for executing the method described in the fourth aspect or any possible design of the fourth aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0124] FIG1 is a schematic diagram of a transmit power control solution provided in an embodiment of the present application;

[0125] FIG2 is a schematic diagram of a channel coverage range provided in an embodiment of the present application;

[0126] FIG3 is a schematic diagram of a channel coverage range provided in an embodiment of the present application;

[0127] FIG4 is a schematic diagram of a communication system provided in an embodiment of the present application;

[0128] FIG5 is a flow chart of a communication method provided in an embodiment of the present application;

[0129] FIG6 is a schematic diagram of a wireless frame configuration scheme provided in an embodiment of the present application;

[0130] FIG7 is a schematic diagram of a frame structure of a downlink wireless frame provided in an embodiment of the present application;

[0131] FIG8 is a schematic diagram of a transmit power control solution provided in an embodiment of the present application;

[0132] FIG9 is a schematic diagram of a channel coverage range provided in an embodiment of the present application;

[0133] FIG10 is a schematic diagram of a transmit power control solution provided in an embodiment of the present application;

[0134] FIG11 is a schematic diagram of a channel coverage range provided in an embodiment of the present application;

[0135] FIG12 is a flow chart of a communication method provided in an embodiment of the present application;

[0136] FIG13 is a schematic diagram of a transmit power control solution provided in an embodiment of the present application;

[0137] FIG14 is a schematic diagram of a transmit power control solution provided in an embodiment of the present application;

[0138] FIG15 is a schematic diagram of a chip architecture provided in an embodiment of the present application;

[0139] FIG16 is a schematic diagram of another chip architecture provided in an embodiment of the present application;

[0140] FIG17 is a schematic diagram of another chip architecture provided in an embodiment of the present application;

[0141] FIG18 is a schematic diagram of another chip architecture provided in an embodiment of the present application;

[0142] FIG19 is a schematic diagram of a chip module framework provided in an embodiment of the present application;

[0143] FIG20 is a schematic diagram of another chip module framework provided in an embodiment of the present application;

[0144] FIG21 is a schematic diagram of another chip module framework provided in an embodiment of the present application;

[0145] FIG22 is a schematic diagram of a framework of a software static policy provided in an embodiment of the present application;

[0146] FIG23 is a schematic diagram of a framework of a hardware time-division arbitration (PTA) strategy provided in an embodiment of the present application;

[0147] FIG24 is a schematic diagram of a link establishment process according to an embodiment of the present application;

[0148] FIG25 is a schematic diagram of another link establishment process provided in an embodiment of the present application;

[0149] FIG26 is a schematic diagram of another link establishment process provided in an embodiment of the present application;

[0150] FIG27 is a schematic diagram of another link establishment process provided in an embodiment of the present application;

[0151] FIG28 is a schematic diagram of another link establishment process provided in an embodiment of the present application;

[0152] FIG29 is a schematic diagram of another link establishment process provided in an embodiment of the present application;

[0153] Figure 30 shows the four different radio frame types defined in the Star Flash protocol;

[0154] FIG31 is an example of a frame format application in a scenario provided by an embodiment of the present application;

[0155] FIG32 is an example of a frame format application in another scenario provided by an embodiment of the present application;

[0156] FIG33 is an example of a frame format application in another scenario provided by an embodiment of the present application;

[0157] FIG34 is an example of a frame format application in another scenario provided by an embodiment of the present application;

[0158] FIG35 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

[0159] FIG36 is a schematic structural diagram of another communication device provided in an embodiment of the present application;

[0160] Figure 37 is a schematic diagram of the composition of a communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0161] Before describing the embodiments of the present application, the technical terms involved in the embodiments of the present application are described.

[0162] In-vehicle wireless short-range communication system: This system is used to enable communication between in-vehicle domain controllers and other communication devices, and interconnect and communicate between smartphones and smart wearable devices (or other devices) and in-vehicle devices. As a next-generation short-range communication standard, it will be promoted for use in various application scenarios such as in-vehicle scenarios, home scenarios, and supermarket scenarios. The communication system can include management nodes (G nodes) and terminal nodes (T nodes). G nodes can send downlink signals to T nodes, and T nodes can send uplink signals to G nodes, thereby enabling communication between G nodes and T nodes.

[0163] When the G node sends a downlink signal to the T node, the transmission power corresponding to all downlink signals is the same.

[0164] For example, as shown in Figure 1, when the G node sends data to the T node through the data channel, it adopts a mixed transmission method of high-order and low-order data (such as time division and / or frequency division mixed transmission), that is, when the G node sends low-order data through the low-order data channel, power backoff is performed according to the transmission power of the high-order data channel, and the transmission power of the low-order data is the same as the transmission power of the high-order data. In addition, when the G node sends common channel information through the common channel, power backoff is performed according to the transmission power of the low-order data channel, that is, the transmission power of the common channel information is the same as the transmission power of the low-order data, so that the capabilities of the low-order data channel and the common channel match (such as decoding capability matching).

[0165] However, in the above method, since the common channel and the low-order data channel are both powered back off with reference to the high-order data channel, as shown in Figure 2, in the far coverage scenario, the performance of the common channel and the low-order data channel is limited by the transmission power of the high-order data channel. Compared with the coverage range at the maximum transmission power, the common channel and the low-order data channel will have a smaller coverage range after power back off.

[0166] Furthermore, as shown in Figure 3(a), in dense deployment scenarios, the coverage of common channels and low-order data channels is large, leading to severe interference between cells with multiple G nodes. To reduce inter-cell interference, as shown in Figure 3(b), the transmit power of common channels, low-order data channels, and high-order data channels can be uniformly reduced. However, reducing the transmit power of high-order data channels can limit their performance and may even render communication services inoperable.

[0167] To address the above technical issues, an embodiment of the present application provides a communication method, in which a management node can send first data to a terminal node at a first transmit power during a first time period of a first superframe, and can send second data to the terminal node at a second transmit power during a second time period of the first superframe. The modulation order of the first data is greater than the modulation order of the second data, and the first transmit power is different from the second transmit power.

[0168] In an embodiment of the present application, the management node can use different transmission powers to send data of different modulation orders, thereby realizing targeted design of power control and coverage range of low-order data channels and high-order data channels, instead of using a uniform transmission power to send all downlink signals, which can improve the coverage performance and anti-interference performance of the communication system.

[0169] The following describes in detail the implementation of the embodiments of the present application in conjunction with the accompanying drawings.

[0170] The communication method provided in the embodiments of the present application can be used in any communication system, which can be a third generation partnership project (3GPP) communication system, for example, a long term evolution (LTE) system, and can also be a fifth generation (5G) mobile communication system, a system of LTE and 5G hybrid networking, a new radio (NR) system, an NR vehicle to everything (V2X) system, a device-to-device (D2D) communication system, a machine to machine (M2M) communication system, the Internet of Things (IoT), a narrowband Internet of Things (NB-IoT) system, enhanced mobile broadband (eMBB), ultra-reliable and low-latency communication (URLLC), enhanced machine-type communication (eMTC), a vehicle-mounted wireless short-range communication system, and various types of next-generation communication systems, such as the sixth generation (sixth generation) The system may be a 6G (6G generation) mobile communication system, or a non-terrestrial network (NTN) system (such as a satellite communication system), a non-3GPP communication system, etc., without limitation.

[0171] The communication method provided in the embodiments of the present application can be applied to various communication scenarios. For example, it can be applied to one or more of the following communication scenarios: coding of control channels, coding of data channels, etc., without limitation.

[0172] The communication system provided in the embodiment of the present application is described below using FIG4 as an example.

[0173] FIG4 is a schematic diagram of a communication system provided in an embodiment of the present application. As shown in FIG4 , the communication system may include at least one terminal node and at least one management node.

[0174] Exemplarily, the communication system shown in FIG4 may be a star flash system.

[0175] The terminal node in FIG4 may be a node in the communication system that receives data scheduling information and sends data according to the data scheduling information, and may be called a T node. The management node in FIG4 may be a node that sends data scheduling information in the communication system, and may be called a G node.

[0176] The management node communication link (a communication link for transmission from the grant node to the terminal node) refers to the communication link from the management node to the terminal node. This link can carry data channels, control channels, broadcast channels, synchronization signals, and other information from the management node to the terminal node. It is called a G link. The symbols used for transmission on the G link are called G symbols.

[0177] The terminal node communication link (a communication link for transmission from a terminal node to a grant node) refers to the communication link from the terminal node to the management node. This link carries data channels, access channels, feedback signals, and other information from the terminal node to the management node, and is referred to as a T-link. The symbols used for T-link transmission are called T symbols.

[0178] A communication domain refers to the G-link and T-link resources of a management node in a communication system. A communication domain can also be called a cell.

[0179] The terminal node in Figure 4 can also be a device with wireless transceiver capabilities or a chip or chip system that can be set up in the device, which can allow users to access the network and is a device used to provide voice and / or data connectivity to users. The terminal node can also be called user equipment (UE), subscriber unit (subscriber unit), terminal (terminal), mobile station (MS), or mobile terminal (MT).

[0180] Exemplarily, the terminal node in FIG4 may be a mobile phone, a tablet computer, or a computer with wireless transceiver capabilities. The terminal node may also be a user station, a mobile station, a remote station, a remote terminal node, a mobile terminal node, a user terminal node, a wireless communication device, a user agent, a user device, a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication capabilities, a computing device, a processing device connected to a wireless modem, an in-vehicle device, a wearable device, an end node in the Internet of Things, a smart home device (e.g., a refrigerator, a television, an air conditioner, an electric meter, etc.), an intelligent robot, a robotic arm, a workshop device, a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in industrial control, a wireless terminal in unmanned driving, a wireless terminal in telemedicine, a wireless terminal in a smart grid, a wireless terminal in a smart city, a wireless terminal in a smart home, a vehicle with vehicle-to-vehicle (V2V) communication capabilities, an intelligent connected vehicle, a UAV (UAV) UAVs with U2U (UAV to UAV) communication capabilities, terminal nodes in future networks, or terminal nodes in future evolved public land mobile networks (PLMNs), etc. are not restricted.

[0181] The management node in Figure 4 can also be any device deployed in the network that can communicate wirelessly with terminal nodes, or a chip or chip system that can be set up in the above-mentioned device, or a logical node or logic module, or a function implemented in software, which can be used to implement wireless physical control functions, resource scheduling and wireless resource management, wireless access control, and mobility management functions. Specifically, the management node can be a device that supports wired access or a device that supports wireless access.

[0182] Exemplarily, the management node may be composed of one or more access network (AN) / radio access network (RAN) nodes. AN / RAN nodes may include: a gNB, a transmission reception point (TRP), an evolved NodeB (eNB), a radio network controller (RNC), a NodeB (NB), a base station controller (BSC), a base transceiver station (BTS), a home evolved NodeB (HNB), a base band unit (BBU), or a wireless fidelity (Wi-Fi) access point (AP).

[0183] In another example, the management node may include a baseband unit (BBU) and a remote radio unit (RRU). The BBU and RRU can be placed in different locations. For example, the RRU can be remotely located in a high-traffic area, while the BBU can be placed in a central computer room. The BBU and RRU can also be placed in the same computer room. The BBU and RRU can also be different components within the same rack.

[0184] In another example, the management node may also be a device including a centralized unit (CU) node, or a distributed unit (DU) node, or a CU node and a DU node. For example, the management node can be divided into CU and DU from a logical function perspective, with some protocol layer functions placed under central control in the CU, and the remaining part or all of the protocol layer functions distributed in the DU, which is centrally controlled by the CU. The CU and DU may be set separately, or they may be included in the same network element, such as a BBU. Furthermore, the centralized unit CU may also be divided into a control plane (CU-CP) and a user plane (CU-UP).

[0185] In another example, the management node may also be a device including a radio unit (RU), or including a CU, DU, and RU. The RU may be included in a radio frequency device or radio frequency unit, for example, an RRU, an active antenna unit (AAU), or a remote radio head (RRH).

[0186] It is understandable that in different systems, CU (or CU-CP and CU-UP), DU or RU may have different names, but those skilled in the art can understand their meanings. For example, in an open radio access network (O-RAN) system, CU may also be referred to as O-CU (open CU), DU may also be referred to as O-DU, CU-CP may also be referred to as O-CU-CP, CU-UP may also be referred to as O-CU-UP, and RU may also be referred to as O-RU. For the sake of convenience of description, this application uses CU, CU-CP, CU-UP, DU and RU as examples for description. Any of the CU (or CU-CP, CU-UP), DU and RU in this application may be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0187] Based on the above description of the terminal node and the management node, optionally, the communication method provided in the embodiment of the present application can be implemented by the above-mentioned terminal node or management node, or by components of the terminal node or management node, such as an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or software (such as program code in a memory) deployed in the terminal node or management node, without limitation.

[0188] The communication method provided in an embodiment of the present application is described below in combination with the communication system shown in Figure 4 and with reference to Figure 5 below, wherein the management node can be any management node in the communication system shown in Figure 4, and the terminal node can be any terminal node in the communication system shown in Figure 4.

[0189] FIG5 is a flow chart of a communication method provided in an embodiment of the present application. As shown in FIG5 , the method includes:

[0190] Step 501: The management node sends first data to the terminal node at a first transmission power within a first time period of the first superframe; correspondingly, the terminal node receives the first data from the management node at a first reception power within a first time period of the first superframe.

[0191] Step 502: The management node sends second data to the terminal node at a second transmission power within a second time period of the first superframe; correspondingly, the terminal node receives the second data from the management node at a second reception power within a second time period of the first superframe.

[0192] The modulation order of the first data is greater than the modulation order of the second data. The first data may also be referred to as high-order data, and the second data may also be referred to as low-order data.

[0193] It should be noted that in the embodiment of the present application, data of two modulation orders (i.e., the first data and the second data) are used as an example to describe the sending and receiving process in detail. It is understandable that the management node can also send data of multiple modulation orders within a superframe. When the management node sends data of multiple modulation orders within a superframe, any two modulation order data among the multiple modulation order data can be considered as the first data and the second data, that is, "high order" and "low order" in the embodiment of the present application are relative concepts, not absolute concepts. The management node can use different transmission powers to send data of different modulation orders.

[0194] For example, taking the example of a management node transmitting data 1 with a modulation order of 2, data 2 with a modulation order of 4, and data 3 with a modulation order of 8 within the first superframe, for data 1 with a modulation order of 2 and data 2 with a modulation order of 4, data 1 can be considered as the second data, and data 2 can be considered as the first data. For data 2 with a modulation order of 4 and data 3 with a modulation order of 8, data 2 can be considered as the second data, and data 3 can be considered as the first data. For data 1 with a modulation order of 2 and data 3 with a modulation order of 8, data 1 can be considered as the second data, and data 3 can be considered as the first data. The first transmit power is different from the second transmit power, and the first receive power is different from the second receive power.

[0195] A super frame may include multiple radio frames.

[0196] For example, taking the in-vehicle wireless short-range communication system as an example, a superframe may include 48 radio frames, which may be downlink radio frames (grant frames, GF) sent by the G node, or uplink radio frames (terminal frames, TF) sent by the T node, or special radio frames (SF) carrying gaps (GAPs). As shown in FIG6 , the radio frame matching schemes may include radio frame matching scheme 0, radio frame matching scheme 1, ..., and radio frame matching scheme 10, each with a duration of 1 ms, wherein the switching period corresponding to radio frame matching schemes 0 to 6 is 1 ms, the switching period corresponding to radio frame matching schemes 7 to 9 is 0.5 ms, and the switching period corresponding to radio frame matching scheme 10 is 125 us.

[0197] Among them, each downlink radio frame can be further subdivided into a symbol structure as shown in Figure 7 according to orthogonal frequency division multiplexing (OFDM) symbols, that is, the downlink radio frame can include a first training signal (FTS) symbol, a second training signal (STS) symbol, a broadcast channel (BCH) symbol, a control resource indicator (CR-IND) symbol, a management control information (GCI) symbol, and a downlink symbol (DS). Alternatively, each radio frame can also include only multiple DS symbols without limitation.

[0198] Among them, the FTS symbol is used to carry the primary synchronization sequence. The STS symbol is used to carry the secondary synchronization sequence. The BCH symbol is not sent in every superframe. When the BCH symbol is not sent in the superframe, the CR-IND symbol and the GCI symbol are moved forward. The CR-IND symbol is used to indicate the GCI resource allocation of the current superframe. GCI is used for downlink control and contains a series of control information used to guide the communication behavior of the T node on the downlink. GCI can also be understood as downlink control information (DCI). The DS symbol is used to carry data (such as the first data and the second data mentioned above).

[0199] Optionally, the first time period may include one or more symbols, and the second time period may include one or more symbols. The lengths of the first time period and the second time period may be the same or different, without limitation.

[0200] Based on the method shown in Figure 5 above, the management node can use different transmission powers to send data of different modulation orders in different time periods of the same superframe. Low-order data and high-order data can be scheduled simultaneously through a single superframe. At the same time, targeted design of power control and coverage range of low-order data channels and high-order data channels is achieved, instead of using a unified transmission power to send all downlink signals, which can improve the coverage performance and anti-interference performance of the communication system.

[0201] The following describes the method shown in FIG5 in detail in combination with different communication scenarios with reference to the following two possible designs.

[0202] In a first possible design, for a coverage enhancement scenario (or a far coverage scenario), the first transmit power is less than the second transmit power.

[0203] As shown in Figure 8, for the coverage enhancement scenario, when the management node sends the second data, it can use a second transmit power that is higher than the first transmit power of the first data. Compared with Figure 9 (a), where the low-order data channels perform power fallback with reference to the high-order data channels, in Figure 9 (b), the coverage of the low-order data channels is no longer limited by the transmit power of the high-order data channels. By increasing the transmit power of the low-order data channels, the coverage of the low-order data channels can be enhanced.

[0204] It is understandable that when the management node sends data of multiple modulation orders in a superframe, the lower the modulation order of the data, the higher the corresponding transmission power of the data can be, so as to enhance the coverage of the low-order data channel.

[0205] Optionally, the end time of the first time period is earlier than or equal to the start time of the second time period. That is, the second data is sent after the first data (or the low-order data is sent after the high-order data). This can prevent the transmit power switching from affecting the signal quality of subsequent high-order data and prevent the transmit power jump from interfering with the high-order data.

[0206] Optionally, the management node may also send a first indication message to the terminal node; accordingly, the terminal node receives the first indication message from the management node, and adjusts the automatic gain control (AGC) gear according to the first indication message to improve receiving sensitivity and communication performance.

[0207] Among them, the first indication information can be used to indicate the power offset, the value of the power offset is a non-negative number (or described as the value of the power offset is greater than or equal to 0), and the power offset is the difference between the transmission power of the common channel and the possible maximum transmission power value of the data channel within the preset time.

[0208] Exemplarily, the management node may determine the power offset according to the following formula: PwrOffset_B=FTS / STS / BCH / CR-IND / GCI symbol power−maximum DS symbol power;

[0209] PwrOffset_B represents the power offset. FTS / STS / BCH / CR-IND / GCI symbol power represents the transmit power of the common channel. Maximum DS symbol power represents the maximum possible transmit power value of the data channel within a preset time.

[0210] The preset time may be predefined by the communication protocol, or may be customized by the management node, or may be determined through negotiation between the management node and the terminal node, without limitation.

[0211] Exemplarily, the preset time may be a period of time in units of superframes, frames, seconds, milliseconds, etc.

[0212] It is understood that the possible maximum transmit power value of the data channel within the preset time is not limited to the possible maximum transmit power value within the current superframe (e.g., the first superframe), but can be the possible maximum transmit power value of the data channel within multiple superframes. In other words, the preset time can be a period of time within the current superframe or a period of time within multiple superframes, without limitation.

[0213] Optionally, as shown in Figure 8, the management node can also send common channel information on the common channel through the second transmission power within the third time period of the first superframe; correspondingly, the terminal node can receive common channel information from the management node on the common channel through the second receiving power within the third time period of the first superframe.

[0214] The public channel may include one or more of the following: a public broadcast channel, a public control channel, etc., without limitation. The end time of the third time period may be earlier than the start time of the first time period.

[0215] For coverage enhancement scenarios, when the management node sends common channel information, it can use the same second transmit power as the second data, so that the common channel matches the capabilities of the low-order data channels. In addition, compared with Figure 9 (a), where the common channel performs power fallback with reference to the high-order data channel, in Figure 9 (b), the coverage of the common channel is no longer limited by the transmit power of the high-order data channel. By increasing the transmit power of the common channel, the coverage of the common channel can be enhanced.

[0216] It is understood that in a scenario where the management node transmits data of multiple modulation orders within a superframe, the management node may transmit the common channel information at the same second transmit power as any lower-order data. Optionally, as shown in FIG8 , the management node may also transmit a power switch reserve symbol (PSRS) at a fourth transmit power within a fourth time period of the first superframe; correspondingly, the terminal node receives the PSRS from the management node at a fourth receive power within the fourth time period of the first superframe.

[0217] The end time of the fourth time period is earlier than or equal to the start time of the first time period. That is, the management node can send the PSRS before sending the first data, and can perform power switching when sending the PSRS. That is, the transmission time of the PSRS can be understood as the power adjustment time, or the power change transition time, thereby avoiding interference of the transmission power jump with the high-order data.

[0218] The fourth transmit power is the maximum transmit power of the data channel in the superframe where the PSRS is located. For example, as shown in FIG8 , if the maximum transmit power of the data channel in the first superframe is the second transmit power, the fourth transmit power is the same as the second transmit power.

[0219] Accordingly, the fourth received power is the maximum received power of the data channel in the superframe where the PSRS is located. Exemplarily, if the maximum received power of the data channel in the first superframe is the second received power, the fourth received power is the same as the second received power.

[0220] Optionally, the terminal node may also adjust the AGC gear according to the PSRS to improve the receiving sensitivity and communication performance.

[0221] The terminal node may determine the power corresponding to the PSRS according to the received PSRS, and adjust the AGC gear according to the power.

[0222] It can be understood that, compared with the terminal node adjusting the AGC gear position according to the PSRS, the terminal node adjusting the AGC gear position according to the first indication information can shorten the adjustment delay and improve the communication performance.

[0223] For the first possible design mentioned above, it can be understood that, as shown in (c) in Figure 9, for low-order data channels, there may be some low-order data channels that expand the coverage range by increasing the transmission power, and there may also be other parts of the data channels whose transmission power is power-backed off with reference to the high-order data channels without restriction.

[0224] Optionally, when the communication scenario does not require long coverage, as shown in Figure 8, the management node can also use a mixed sending method of the first data and the second data (time division and / or frequency division) in the downlink data channel to send the first data and the second data to the terminal node through the first transmission power without restriction.

[0225] In a second possible design, for dense deployment scenarios, the first transmission power is greater than the second transmission power.

[0226] Among them, for dense deployment scenarios, as shown in Figure 10, when the management node sends the second data, it can use a second transmission power lower than the first transmission power of the first data. Compared with Figure 11 (a), where the low-order data channel refers to the high-order data channel for power fallback, which will lead to serious interference between cells, in Figure 11 (c), by reducing the transmission power of the low-order data channel, the coverage of the low-order data channel can be reduced, and the interference between cells can be reduced. In addition, compared with Figure 11 (b), where the uniform reduction of the transmission power will lead to limited performance of the high-order data channel, in Figure 11 (c), the transmission power of the high-order data channel does not need to be reduced, thereby ensuring high throughput, avoiding the coverage of the high-order data channel becoming smaller or even being unable to provide communication services after the uniform reduction of the transmission power, and improving communication performance.

[0227] It is understandable that when the management node sends data of multiple modulation orders within a superframe, the lower the modulation order of the data, the lower the corresponding transmission power of the data can be, so as to reduce the coverage range of the low-order data channel and reduce interference between cells.

[0228] Optionally, the end time of the first time period is earlier than or equal to the start time of the second time period. That is, the second data is sent after the first data (or the low-order data is sent after the high-order data). This can prevent the transmit power switching from affecting the signal quality of subsequent high-order data and prevent the transmit power jump from interfering with the high-order data.

[0229] Optionally, the management node may also send a second indication message to the terminal node; accordingly, the terminal node receives the second indication message from the management node, and adjusts the AGC gear according to the second indication message to avoid signal distortion caused by excessive power entering a saturated state, thereby improving signal quality.

[0230] The second indication information is used to indicate a power offset. The power offset is a negative number (or is described as a power offset value less than 0). The power offset is the difference between the transmit power of the common channel and the maximum possible transmit power value of the data channel within a preset time. The description of the power offset can refer to the relevant description in the first possible design above and is not repeated here.

[0231] It is understandable that both the first indication information and the second indication information are used to indicate the power offset, and the first indication information and the second indication information may be different indication information. Alternatively, the first indication information and the second indication information may be the same indication information. When the value of the indication information is the first value, it indicates that the power offset is a non-negative number, and the indication information may be understood as the first indication information. Alternatively, when the value of the indication information is the second value, it indicates that the power offset is a negative number, and the indication information may be understood as the second indication information.

[0232] Optionally, as shown in Figure 10, the management node can also send common channel information on the common channel through the second transmission power within the third time period of the first superframe; correspondingly, the terminal node can receive common channel information from the management node on the common channel through the second receiving power within the third time period of the first superframe.

[0233] The end time of the third time period is earlier than the start time of the first time period.

[0234] For dense deployment scenarios, the management node can use the same second transmit power as the second data when sending common channel information, so that the common channel matches the capabilities of the low-order data channel. In addition, compared with Figure 11 (a), where the common channel performs power fallback with reference to the high-order data channel, which leads to severe inter-cell interference, Figure 11 (c) reduces the common channel's transmit power, thereby reducing the common channel's coverage and inter-cell interference. At the same time, it can also prevent T nodes in cells of other G nodes from frequently attempting to access the current cell.

[0235] It is understandable that, in a scenario where the management node sends data of multiple modulation orders within a superframe, the management node may use the same second transmit power as any low-order data to send the common channel information.

[0236] Alternatively, the management node may also send common channel information on the common channel through a third transmission power within the third time period of the first superframe; correspondingly, the terminal node may receive common channel information from the management node on the common channel through a third receiving power within the third time period of the first superframe.

[0237] The third transmit power is less than the first transmit power, which is less than the second transmit power. Correspondingly, the third receive power is less than the first receive power, which is less than the second receive power.

[0238] For dense deployment scenarios, as shown in (d) in Figure 11, when the management node sends common channel information, it can also use a third transmission power that is smaller than the second transmission power. By reducing the transmission power of the common channel, the coverage range of the common channel can be reduced, and the interference between cells can be reduced. At the same time, it can also avoid T nodes in cells of other G nodes frequently attempting to access the current cell.

[0239] Optionally, as shown in Figure 10, the management node may also send PSRS at a fourth transmission power in the fourth time period of the first superframe; correspondingly, the terminal node receives PSRS from the management node at a fourth receiving power in the fourth time period of the first superframe.

[0240] The end time of the fourth time period is earlier than or equal to the start time of the first time period. That is, the management node can send the PSRS before sending the first data, and can perform power switching when sending the PSRS. That is, the transmission time of the PSRS can be understood as the power adjustment time, or the power change transition time, thereby avoiding interference of the transmission power jump with the high-order data.

[0241] The fourth transmit power is the maximum transmit power of the data channel in the superframe where the PSRS is located. For example, as shown in FIG10 , if the maximum transmit power of the data channel in the first superframe is the first transmit power, the fourth transmit power is the same as the first transmit power.

[0242] Accordingly, the fourth received power is the maximum received power of the data channel in the superframe where the PSRS is located. Exemplarily, if the maximum received power of the data channel in the first superframe is the first received power, the fourth received power is the same as the first received power.

[0243] Optionally, the terminal node can also adjust the AGC gear according to the PSRS to prevent the signal from entering a saturated state and being distorted due to excessive power, thereby improving signal quality.

[0244] The terminal node may determine the power corresponding to the PSRS according to the received PSRS, and adjust the AGC gear according to the power.

[0245] It can be understood that, compared with the terminal node adjusting the AGC gear position according to the PSRS, the terminal node adjusting the AGC gear position according to the second indication information can shorten the adjustment delay and improve the communication performance.

[0246] Unlike the above-mentioned Figures 5 to 11 in which the management node sends the first data and the second data to the terminal node in different time periods of the same superframe, referring to the method shown in the following Figure 12, the management node can also send the first data and the second data to the terminal node in different superframes.

[0247] FIG12 is a communication method provided in an embodiment of the present application. As shown in FIG12 , the method includes:

[0248] Step 1201: The management node sends first data to the terminal node at a first transmission power within a second superframe; correspondingly, the terminal node receives the first data from the management node at a first reception power within the second superframe.

[0249] Step 1202: The management node sends second data to the terminal node at a second transmit power within a third superframe; correspondingly, the terminal node receives the second data from the management node at a second receive power within the third superframe.

[0250] The modulation order of the first data is greater than the modulation order of the second data. The first data may also be referred to as high-order data, and the second data may also be referred to as low-order data. The first transmit power is different from the second transmit power; and the first receive power is different from the second receive power.

[0251] It should be noted that in the embodiment of the present application, two types of modulation order data (i.e., the first data and the second data) are used as an example to describe their sending and receiving processes in detail. It can be understood that the management node can also send data of multiple modulation orders in multiple superframes (different superframes correspond to data of different modulation orders). Any two modulation order data among the multiple modulation order data can be considered as the first data and the second data, that is, "high order" and "low order" in the embodiment of the present application are relative concepts, not absolute concepts. The management node can use different transmission powers to send data of different modulation orders in different superframes.

[0252] For example, taking the example of a management node sending data 1 with a modulation order of 2 in superframe 1, data 2 with a modulation order of 4 in superframe 2, and data 3 with a modulation order of 8 in superframe 3, for data 1 and data 2, data 1 can be considered as the second data, superframe 1 in which data 1 is located can be considered as the third superframe, data 2 can be considered as the first data, and superframe 2 in which data 2 is located can be considered as the second superframe. For data 2 and data 3, data 2 can be considered as the second data, superframe 2 in which data 2 is located can be considered as the third superframe, data 3 can be considered as the first data, and superframe 3 in which data 3 is located can be considered as the second superframe. For data 1 and data 3, data 1 can be considered as the second data, superframe 1 in which data 1 is located can be considered as the third superframe, data 3 can be considered as the first data, and superframe 3 in which data 3 is located can be considered as the second superframe.

[0253] Based on the method shown in Figure 12 above, the management node can use different transmission powers to send data of different modulation orders in different superframes, thereby realizing targeted design of power control and coverage range of low-order data channels and high-order data channels, instead of using a uniform transmission power to send all downlink signals, which can improve the coverage performance and anti-interference performance of the communication system.

[0254] The following describes the method shown in Figure 12 in detail in combination with different communication scenarios and with reference to the following two possible designs.

[0255] In a first possible design, for a coverage enhancement scenario (or a far coverage scenario), the first transmit power is less than the second transmit power.

[0256] As shown in Figure 13, in coverage enhancement scenarios, when the management node sends the second data, it can use a second transmit power that is higher than the first transmit power of the first data. The coverage of the low-order data channel is no longer limited by the transmit power of the high-order data channel. By increasing the transmit power of the low-order data channel, the coverage of the low-order data channel can be enhanced. Furthermore, high-order and low-order data are transmitted in different superframes, ensuring that the low-order data can be transmitted at the maximum transmit power without affecting the signal quality of the high-order data.

[0257] It is understandable that when the management node sends data of different modulation orders in different superframes, the lower the modulation order of the data, the higher the corresponding transmission power of the data can be, so as to enhance the coverage of the low-order data channel.

[0258] Optionally, the management node may further send first indication information to the terminal node; correspondingly, the terminal node receives the first indication information from the management node, and adjusts the AGC gear position according to the first indication information to improve receiving sensitivity and communication performance.

[0259] The first indication information may be used to indicate a power offset. The power offset value is a non-negative number (or is described as a power offset value greater than or equal to 0). The power offset is the difference between the transmit power of the common channel and the maximum possible transmit power value of the data channel within a preset time. The description of the first indication information can refer to the aforementioned description of the first indication information and is not repeated here.

[0260] Optionally, as shown in Figure 13, the management node can also send common channel information on the common channel through the second transmission power before sending the first data within the second superframe; correspondingly, the terminal node can receive the common channel information from the management node on the common channel through the second receiving power before receiving the first data within the second superframe.

[0261] Similarly, the management node can also send common channel information on the common channel through the second transmission power before sending the second data within the third superframe; correspondingly, the terminal node can receive common channel information from the management node on the common channel through the second receiving power before receiving the second data within the third superframe.

[0262] It is understandable that, in a scenario where the management node sends data of different modulation orders in different superframes, the management node may use the same second transmit power as any low-order data to send the common channel information.

[0263] For coverage enhancement scenarios, the management node can use the same second transmit power as the second data when sending common channel information, ensuring that the common channel matches the capabilities of the lower-order data channels. Furthermore, the coverage of the common channel is no longer limited by the transmit power of the higher-order data channels. By increasing the transmit power of the common channel, the coverage of the common channel can be enhanced.

[0264] Optionally, as shown in Figure 13, the management node may also send PSRS at the fourth transmission power before sending the first data in the second superframe; correspondingly, the terminal node receives PSRS from the management node at the fourth receiving power before receiving the first data in the second superframe.

[0265] Similarly, the management node may also send PSRS at the fourth transmission power before sending the second data in the third superframe; correspondingly, the terminal node may receive PSRS from the management node at the fourth reception power before receiving the second data in the third superframe.

[0266] The management node can send PSRS before sending the first data or the second data, and can perform power switching when sending PSRS, that is, the sending time of PSRS can be understood as the power adjustment time, or as the power change transition time, thereby avoiding the interference of the transmission power jump on the first data or the second data.

[0267] The fourth transmit power is the maximum transmit power of the data channel in the superframe in which the PSRS is located. For example, as shown in FIG13 , if the maximum transmit power of the data channel in the second superframe is the first transmit power, then the fourth transmit power is the same as the first transmit power. If the maximum transmit power of the data channel in the third superframe is the second transmit power, then the fourth transmit power is the same as the second transmit power.

[0268] Accordingly, the fourth received power is the maximum received power of the data channel in the superframe in which the PSRS is located. Exemplarily, if the maximum received power of the data channel in the second superframe is the first received power, then the fourth received power is the same as the first received power. If the maximum received power of the data channel in the third superframe is the second received power, then the fourth received power is the same as the second received power.

[0269] Optionally, the terminal node may also adjust the AGC gear according to the PSRS to improve the receiving sensitivity and communication performance.

[0270] The terminal node may determine the power corresponding to the PSRS according to the received PSRS, and adjust the AGC gear according to the power.

[0271] It can be understood that, compared with the terminal node adjusting the AGC gear position according to the PSRS, the terminal node adjusting the AGC gear position according to the first indication information can shorten the adjustment delay and improve the communication performance.

[0272] For the first possible design mentioned above, it can be understood that for low-order data channels, there may be some low-order data channels that expand the coverage range by increasing the transmission power, and there may also be other data channels whose transmission power is power-backed off with reference to the high-order data channels without restriction.

[0273] In a second possible design, for dense deployment scenarios, the first transmission power is greater than the second transmission power.

[0274] Among them, for dense deployment scenarios, as shown in Figure 14, when the management node sends the second data, it can use a second transmission power lower than the first transmission power of the first data. By reducing the transmission power of low-order data channels, the coverage of low-order data channels can be reduced and inter-cell interference can be reduced. In addition, compared with the performance limitation of high-order data channels caused by uniformly reducing the transmission power, this second possible design does not require reducing the transmission power of high-order data channels, thereby ensuring high throughput, avoiding the reduction of the coverage of high-order data channels after uniformly reducing the transmission power or even the inability to provide communication services, and improving communication performance.

[0275] It is understandable that when the management node sends data of different modulation orders in different superframes, the lower the modulation order of the data, the lower the corresponding transmission power of the data can be, so as to reduce the coverage range of the low-order data channel and reduce interference between cells.

[0276] Optionally, the management node may also send a second indication message to the terminal node; accordingly, the terminal node receives the second indication message from the management node, and adjusts the AGC gear according to the second indication message to avoid signal distortion caused by excessive power entering a saturated state, thereby improving signal quality.

[0277] The second indication information is used to indicate a power offset. The power offset is a negative number (or is described as a power offset value less than 0). The power offset is the difference between the transmit power of the common channel and the maximum possible transmit power value of the data channel within a preset time. The description of the second indication information can refer to the related description of the second indication information above and is not repeated here.

[0278] Optionally, as shown in Figure 14, the management node can also send common channel information on the common channel through the second transmission power before sending the first data within the second superframe; correspondingly, the terminal node can receive the common channel information from the management node on the common channel through the second receiving power before receiving the first data within the second superframe.

[0279] Similarly, the management node can also send common channel information on the common channel through the second transmission power before sending the second data within the third superframe; correspondingly, the terminal node can receive common channel information from the management node on the common channel through the second receiving power before receiving the second data within the third superframe.

[0280] It is understandable that, in a scenario where the management node sends data of different modulation orders in different superframes, the management node may use the same second transmit power as any low-order data to send the common channel information.

[0281] For dense deployment scenarios, the management node can use the same second transmit power as the second data when sending common channel information, so that the common channel matches the capabilities of low-order data channels. In addition, by reducing the transmit power of the common channel, the coverage range of the common channel can be reduced, reducing inter-cell interference. At the same time, it can also prevent T nodes in cells of other G nodes from frequently attempting to access the current cell.

[0282] Alternatively, the management node may also send common channel information on the common channel through a third transmission power before sending the first data within the second superframe; correspondingly, the terminal node may receive common channel information from the management node on the common channel through a third receiving power before sending the first data within the second superframe.

[0283] Similarly, the management node can also send common channel information on the common channel through the third transmission power before sending the second data within the third superframe; correspondingly, the terminal node can receive common channel information from the management node on the common channel through the third receiving power before receiving the second data within the third superframe.

[0284] The third transmit power is less than the first transmit power, which is less than the second transmit power. Correspondingly, the third receive power is less than the first receive power, which is less than the second receive power.

[0285] For dense deployment scenarios, the management node may also use a third transmission power that is smaller than the second transmission power when sending common channel information. By reducing the transmission power of the common channel, the coverage of the common channel can be reduced, and the interference between cells can be reduced. At the same time, it can also avoid T nodes in cells of other G nodes frequently attempting to access the current cell.

[0286] Optionally, as shown in Figure 14, the management node may also send PSRS at the fourth transmission power before sending the first data in the second superframe; correspondingly, the terminal node receives PSRS from the management node at the fourth receiving power before receiving the first data in the second superframe.

[0287] Similarly, the management node may also send PSRS at the fourth transmission power before sending the second data in the third superframe; correspondingly, the terminal node may receive PSRS from the management node at the fourth reception power before receiving the second data in the third superframe.

[0288] The management node can send PSRS before sending the first data or the second data, and can perform power switching when sending PSRS, that is, the sending time of PSRS can be understood as the power adjustment time, or as the power change transition time, thereby avoiding the interference of the transmission power jump on the first data or the second data.

[0289] The fourth transmit power is the maximum transmit power of the data channel in the superframe in which the PSRS is located. For example, as shown in FIG14 , if the maximum transmit power of the data channel in the second superframe is the first transmit power, then the fourth transmit power is the same as the first transmit power. If the maximum transmit power of the data channel in the third superframe is the second transmit power, then the fourth transmit power is the same as the second transmit power.

[0290] Accordingly, the fourth received power is the maximum received power of the data channel in the superframe in which the PSRS is located. Exemplarily, if the maximum received power of the data channel in the second superframe is the first received power, then the fourth received power is the same as the first received power. If the maximum received power of the data channel in the third superframe is the second received power, then the fourth received power is the same as the second received power.

[0291] Optionally, the terminal node may also adjust the AGC gear position based on the PSRS to prevent the signal from entering a saturated state and being distorted due to excessive power, thereby improving signal quality. The terminal node may determine the power corresponding to the received PSRS based on the PSRS and adjust the AGC gear position based on the power. It is understood that, compared to adjusting the AGC gear position based on the PSRS by the terminal node, adjusting the AGC gear position based on the second indication information can shorten the adjustment delay and improve communication performance.

[0292] It can be understood that compared with the method shown in Figures 12 to 14 above, in which the management node sends the first data and the second data through different superframes, the method shown in Figures 5 to 11 above, in which the management node sends the first data and the second data in the same superframe, can reduce the delay.

[0293] In one possible implementation, the solution provided in the embodiment of the present application can be applied to a star flash system.

[0294] In the embodiments of the present application, Bluetooth (BT) and Bluetooth low energy (BLE) may refer to each other. Sparklink or nearlink may both be overlapping networking modes for multiple piconets, and may both use the 2.4 GHz frequency band and frequency hopping technology, with similar features. Sparklink low energy (SLE), Sparklink basic (SLB), or Sparklink position (SLP) may also refer to each other.

[0295] Some embodiments of the solutions provided by this application are introduced below.

[0296] Example 1:

[0297] Both Bluetooth (BT) and SparkLink (or NearLink) can form overlapping piconets. Both utilize the 2.4 GHz frequency band and frequency hopping technology, sharing similarities. This allows for the reuse of some modules, saving chip cost, area, and power consumption. This allows for a high degree of chip resource reuse and rapid iteration across multiple chips.

[0298] BLE and SLE can share a set of radio frequency architecture and channels. As shown in Figure 15, a chip architecture schematic diagram is provided for an embodiment of the present application. As can be seen from Figure 15, through design, it is possible to achieve resource sharing of the central processing unit (CPU), radio frequency (RF) unit), analog baseband (ABB) unit, or modem, and reuse of some modules of the media access control (MAC) layer, thereby saving chip area, reducing chip cost and power consumption. As shown in Figure 16, another chip architecture schematic diagram is provided for an embodiment of the present application. As can be seen from Figure 16, the MAC units of BT, SLE and wireless fidelity (WIFI) are implemented independently, and the RF units and Modem units of each mode are all shared. As shown in Figure 17, another chip architecture schematic diagram is provided for an embodiment of the present application. As can be seen from Figure 17, the MAC units of BT, SLE and WIFI are implemented independently, and the Modems of BT, SLE and WIFI are also implemented independently, and the RF units of each mode are all shared. Figure 18 shows another chip architecture diagram provided by an embodiment of the present application. As shown in Figure 18, the MAC units of BT, SLE, and WIFI are independently implemented, while some modes, such as BT and SLE, share a common modem. Other modes, such as WIFI, have their own independent modem implementations, while all RF units are shared.

[0299] Example 2:

[0300] SLE chips can be manufactured using 14 / 28 / 40nm processes and packaged in chip size packages (CSP), ball grid array (BGA), and quad flat no-lead (QFN), with either internal or external flash memory. Depending on the application scenario, at least one of the following subsystems, including a power management unit (PMU), clock management unit (CMU), active optical network (AON), wireless local area network (WLAN) or Bluetooth, SLE, global navigation satellite system (GNSS), application (APP), and audio, can be integrated onto a single chip, minimizing area, maximizing functionality, and improving performance and reliability.

[0301] The present application provides a chip design method in which the SLE and other subsystems are integrated on a single chip. The subsystems of the chip can be tailored and combined according to different products, and different subsystems are connected via a bus.

[0302] As shown in Figure 19, a schematic diagram of a chip module framework provided by an embodiment of the present application is shown. As shown in Figure 19, for products that require functional modules such as WIFI or GNSS and need to connect to Bluetooth and Star Flash devices, BT and SLE can be divided into different systems, and then combined with WIFI System, GNSS System, Always On System, PMU, CMU, Flash memory, etc. on a single chip. Different subsystems are connected through a bus.

[0303] Figure 20 shows another schematic diagram of a chip module framework provided by an embodiment of the present application. As shown in Figure 20, for devices that do not require functional modules such as Wi-Fi or GNSS but require audio functions, in order to save area and cost, BLE and SLE can be combined into one subsystem, which can then be combined with the App System, Audio System, Always On System, PMU, CMU, Flash, etc. on a single chip. Different subsystems are connected via a bus.

[0304] Figure 21 shows another schematic diagram of a chip module framework provided by an embodiment of the present application. As shown in Figure 21, for devices that do not require functional modules such as Wi-Fi or GNSS, nor audio functions, to save space and cost, BLE and SLE can be combined into one subsystem, which can then be combined with the Always On System, CMU, PMU, Flash, etc. on a single chip, with the different subsystems connected via a bus.

[0305] Example 3:

[0306] The WiFi 2.4G frequency band is 2412-2472MHz, while the BT / BLE / SLE frequency band is 2402-2480MHz, potentially interfering with each other. SLE and BT / BLE within the same core can be allocated service time slots through software scheduling, but SLE and BT / BLE / WiFi on different cores lack unified scheduling.

[0307] The embodiment of the present application provides a coexistence solution for SLE / BT / BLE / WIFI. Depending on whether SLE and BT / BLE / WIFI share the same antenna, the coexistence scenario is divided into different antenna coexistence (using different antennas) and shared antenna coexistence (using the same antenna), and different coexistence strategies are given.

[0308] For heterogeneous antenna coexistence, if SLE and BT / BLE coexist, the transmit and receive frequencies of SLE and BT / BLE can be kept different (i.e., frequency division multiplexing). The software can handle this based on the frequency hopping sequence (i.e., code division multiplexing), service cycle, and interval (i.e., time division multiplexing). If SLE and Wi-Fi coexist, if isolation cannot meet the requirements, it is necessary to avoid the WLAN channel (i.e., channel avoidance) to reduce the impact of WLAN. At the same time, a cluster scheduling mechanism can be added to aggregate and send Wi-Fi packets (i.e., cluster scheduling) to reduce the probability of WLAN interference.

[0309] For coexistence using the same antenna, either a software static strategy or a hardware packet traffic arbitration (PTA) strategy can be used. The advantages of the software static strategy include minimal hardware requirements, minimal software modifications, and no dynamic radio frequency (RF) switching (such as RF recovery). The advantages of the PTA strategy include faster service state switching and finer switching time granularity.

[0310] Taking the coexistence of SLE and Wi-Fi as an example, Figure 22 shows a schematic diagram of a software static policy framework provided by an embodiment of the present application. As can be seen from Figure 22, the software static policy may include: after SLE is started, the host (HOST) is configured through software to notify Wi-Fi to exit the current RF path. In this scenario, Wi-Fi can check the SLE startup flag, and the software can set it to switch from the current RF path to another RF path. The chip needs to support software-set switching.

[0311] Exemplarily, as shown in FIG23, a schematic diagram of the framework of a hardware arbitration time division (PTA) strategy provided in an embodiment of the present application is provided. As can be seen from FIG23, the hardware arbitration time division (PTA) strategy includes: any combination of transmission (TX) and reception (RX) of each party is time-divided, and the PTA module will transmit the occupancy status of the radio frequency channel to each party respectively, using different level signals to indicate that the radio frequency channel is occupied by SLE / BT / BLE / WIFI, and this signal is used to notify the software or hardware to perform the corresponding processing. Different services can also set different PTA priorities, and high-priority services can seize air interface resources.

[0312] Example 4:

[0313] The Star Flash standard defines asynchronous and synchronous data links. Asynchronous links are divided into asynchronous unicast and multicast, and synchronous links are divided into synchronous unicast, multicast, and broadcast. This embodiment of the application designs a set of SLE link selection schemes based on the different real-time data requirements of different products. By connecting different devices in different scenarios, different data links can be used to support the needs of different product application scenarios.

[0314] Figure 24 is a schematic diagram of a link establishment process provided by an embodiment of the present application. As shown in Figure 24, after the T node sends a broadcast packet to the G node, the G node sends a scan access request to the T node. Further, after the T node sends a scan access response to the G node, an asynchronous unicast link is established between the G node and the T node, and data is transmitted over the established asynchronous unicast link.

[0315] Figure 25 is a schematic diagram of another link establishment process provided by an embodiment of the present application. As shown in Figure 25, after the T node sends a broadcast packet to the G node, the G node sends a scan access request to the T node. Furthermore, after the T node sends a scan access response to the G node, an asynchronous multicast link is established between the G node and the T node, and data is transmitted over the established asynchronous multicast link.

[0316] For products that do not require real-time data (such as non-audio devices such as keyboards, mice, and styluses) or services (that is, the service delay of the product or service is greater than the first value), an asynchronous unicast link as shown in Figure 24 or an asynchronous multicast link as shown in Figure 25 can be established for data transmission.

[0317] Figure 26 is a schematic diagram of another link establishment process provided by an embodiment of the present application. As shown in Figure 26, after the T node sends a broadcast packet to the G node, the G node sends a scan access request to the T node. Furthermore, after the T node sends a scan access response to the G node, the G node and the T node first establish an asynchronous unicast link, and then establish a synchronous unicast link, and data is transmitted over the established synchronous unicast link.

[0318] Figure 27 is a schematic diagram of another link establishment process provided by an embodiment of the present application. As shown in Figure 27, after the T node sends a broadcast packet to the G node, the G node sends a scan access request to the T node. Furthermore, after the T node sends a scan access response to the G node, the G node and the T node first establish an asynchronous unicast link, then establish a synchronous multicast link, and transmit data over the established synchronous multicast link.

[0319] For products (such as audio devices such as headphones and microphones) or services with real-time data requirements (that is, the service delay of the product or service is less than the second value), as shown in Figure 26 or Figure 27, an asynchronous unicast link can be established first, and then a synchronous unicast link or a synchronous multicast link can be established for data transmission.

[0320] Figure 28 is a schematic diagram of another link establishment process provided by an embodiment of the present application. As shown in Figure 28, after the T node sends a broadcast packet to the G node, the G node sends a scan access request to the T node. Furthermore, after the T node sends a scan access response to the G node, an asynchronous unicast link is established between the G node and the T node, and data transmission is performed after synchronization is achieved by adding timestamps to the data packets.

[0321] Figure 29 is a schematic diagram of another link establishment process provided by an embodiment of the present application. As shown in Figure 29, after the T node sends a broadcast packet to the G node, the G node sends a scan access request to the T node. Furthermore, after the T node sends a scan access response to the G node, an asynchronous multicast link is established between the G node and the T node, and data transmission is performed after synchronization is achieved by adding timestamps to the data packets.

[0322] For products (such as audio devices such as headsets and live microphones) or services that have data real-time requirements but not particularly high real-time requirements (that is, the service delay of the product or service is less than the first value and greater than the second value), asynchronous unicast or asynchronous multicast links can also be established to achieve synchronization by adding timestamps to data packets.

[0323] Embodiment 5:

[0324] As shown in Figure 30, the StarFlash protocol defines four different radio frame types. Each frame format corresponds to different sensitivity, frame length, modulation mode, and synchronization sequence. Physical layer parameter negotiation can be used to select different frame formats in different scenarios to maximize performance benefits. The following examples provide examples of selecting different frame formats in different scenarios.

[0325] As shown in Figure 31, an example of a frame format application in a scenario provided by an embodiment of the present application is shown. For low-latency products (such as keyboards, mice, styluses, toothbrushes, microphones, etc.) or business scenarios (i.e., the service latency of the product or business is less than the first duration), frame format 1 is selected for broadcast access, and after entering the connected state, it is switched to frame format 2 through physical layer parameter negotiation.

[0326] As shown in Figure 32, an example of frame format application in another scenario provided by an embodiment of the present application is shown. Among them, for products (such as mobile phones, headphone audio) or business scenarios that have both low latency (i.e., the service delay of the product or service is less than the first duration) and anti-interference demands (i.e., the anti-interference capability of the product or service is required to be greater than the set threshold), frame format 1 is selected for broadcast access, and after entering the connected state, it is switched to frame format 2 or frame format 3 through physical layer parameter negotiation.

[0327] As shown in Figure 33, an example of frame format application in another scenario provided by an embodiment of the present application is shown. For extremely low-cost devices that only support Gaussian frequency shift keying (GFSK) frame format (GFSK has a higher maximum transmit power than phase shift keying (PSK)), or devices that are sensitive to maximum transmit power (i.e., the maximum transmit power must be greater than a first power threshold), frame format 1 is selected for broadcast access, and no frame format switching is performed subsequently.

[0328] As shown in Figure 34, an example of frame format application in another scenario provided by an embodiment of the present application is shown. For the ultra-long-distance coverage scenario of the Internet of Things (IoT), frame format 4 is selected for broadcasting and connection. When the distance is shortened, frame format 2 or 3 can be switched through physical layer parameter negotiation. Otherwise, frame format 4 is maintained.

[0329] It should be noted that the frame format one in the embodiment of the present application can also be called the frame format corresponding to the Star Flash Wireless Frame Type 1, the frame format two in the embodiment of the present application can also be called the frame format corresponding to the Star Flash Wireless Frame Type 2, the frame format three in the embodiment of the present application can also be called the frame format corresponding to the Star Flash Wireless Frame Type 3, and the frame format four in the embodiment of the present application can also be called the frame format corresponding to the Star Flash Wireless Frame Type 4.

[0330] It should be noted that the various embodiments of this application can be implemented independently or in combination, without limitation. Unless otherwise specified or there is a logical conflict, the terms and / or descriptions of the different embodiments provided in this application are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0331] It is understood that in the embodiments of the present application, the execution subject may perform some or all of the steps in the embodiments of the present application. These steps or operations are merely examples, and the embodiments of the present application may also perform other operations or variations of various operations. In addition, the various steps may be performed in a different order than those presented in the embodiments of the present application, and it is possible that not all operations in the embodiments of the present application need to be performed.

[0332] The above mainly introduces the solution provided by the embodiment of the present application from the perspective of interaction between devices. It is understandable that, in order to realize the above functions, each device includes a hardware structure and / or software module corresponding to the execution of each function. Those skilled in the art should easily realize that, in combination with the algorithm steps of each example described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0333] The embodiments of the present application can divide the functional modules of each device according to the above method examples. For example, each functional module can be divided according to each function, or two or more functions can be integrated into one processing module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in the embodiments of the present application is schematic and is only a logical function division. In actual implementation, there may be other division methods.

[0334] In some embodiments, the present application further provides a communication device 350 for implementing the transmission of star flash signals. The communication device 350 may include: a module for sending first data to a terminal node via a first transmission power within a first time period of a first superframe; a module for sending second data to a terminal node via a second transmission power within a second time period of the first superframe; wherein the modulation order of the first data is greater than the modulation order of the second data; and the first transmission power is different from the second transmission power. Optionally, as shown in FIG35 , the module for generating the first data and the second data may be a processing module 3501, and the module for sending the first data and the second data to the terminal node may be a communication module 3502.

[0335] Alternatively, the communication device 350 may include: a module for transmitting first data to a terminal node using a first transmit power within a second superframe; and a module for transmitting second data to the terminal node using a second transmit power within a third superframe; wherein the modulation order of the first data is greater than the modulation order of the second data; and the first transmit power is different from the second transmit power. Optionally, as shown in FIG35 , the module for generating the first data and the second data may be a processing module 3501, and the module for transmitting the first data and the second data to the terminal node may be a communication module 3502.

[0336] The communication module and processing module in the embodiment of the present application can be deployed in the Star Flash module, Bluetooth module or WiFi module at the same time; or, the communication module in the embodiment of the present application can be deployed in the Star Flash module, Bluetooth module or WiFi module, and the processing module in the embodiment of the present application can be deployed in other modules of the module where the processing module is located; or, the processing module in the embodiment of the present application can be deployed in the Star Flash module, Bluetooth module or WiFi module, and the communication module in the embodiment of the present application can be deployed in other modules of the module where the processing module is located. The embodiment of the present application does not make specific limitations on this.

[0337] In another possible implementation, the above-mentioned communication device 350 is also used to realize the transmission of Bluetooth signals or WiFi signals, and at least one of the Star Flash module, Bluetooth module and WiFi module shares at least one of the RF unit, modem unit, MAC unit and CPU.

[0338] In another possible implementation, the communication device 350 is also used to realize the transmission of Bluetooth signals, but does not support the transmission of WiFi signals. The Star Flash module and the Bluetooth module are located in the same subsystem of the communication device 350, and the subsystem and PMU are integrated in the communication device 350.

[0339] In another possible implementation, the communication device 350 is also used to realize the transmission of Bluetooth signals or WiFi signals. At least one of the Bluetooth modules or WiFi modules coexists and communicates with the Star Flash module through different antennas, and the coexistence strategy is channel avoidance.

[0340] In another possible implementation, the communication device 350 is further used to determine the type of the opposite device and / or the service delay of the opposite device, and determine the link corresponding to the opposite device and / or the service for data transmission according to the link selection strategy.

[0341] In another possible implementation, the communication device 350 is also used to: determine the type of the opposite device and / or the service delay of the opposite device, including: determining the type of the opposite device, the type of the opposite device includes an audio device type or a non-audio device type; when the type of the opposite device is an audio device type, determining the service delay of the opposite device.

[0342] In another possible implementation, the link selection strategy includes: when the service delay is greater than a first value, establishing an asynchronous unicast link or an asynchronous multicast link before performing data transmission; or, when the service delay is less than the first value and greater than a second value, establishing an asynchronous unicast link or an asynchronous multicast link, achieving synchronization by adding timestamps to data packets, and then performing data transmission; or, when the service delay is less than the second value, first establishing an asynchronous unicast link, and then establishing a synchronous unicast link or a synchronous multicast link before performing data transmission.

[0343] In another possible implementation, the communication device 350 is further configured to determine the type of the peer device and / or the service delay of the peer device, and determine, based on a frame format selection strategy, a frame format type corresponding to the type of the peer device and / or the service type of the peer device. The frame format types include Starflash Wireless Frame Type 1, Starflash Wireless Frame Type 2, Starflash Wireless Frame Type 3, or Starflash Wireless Frame Type 4.

[0344] In another possible implementation, the communication device 350 is also used to: determine the type of the opposite device and / or the service delay of the opposite device, including: determining the type of the opposite device, the type of the opposite device includes an audio device type or a non-audio device type; when the type of the opposite device is an audio device type, determining the service delay of the opposite device.

[0345] In another possible implementation, the above-mentioned frame format selection strategy includes: when the service delay of the opposite device is less than the first duration, selecting Star Flash wireless frame type 1 for broadcast access, and switching to Star Flash wireless frame type 2 through physical layer parameter negotiation after the connection state; or, when the service delay of the opposite device is less than the first duration and the service anti-interference capability requirement is greater than the set threshold, selecting Star Flash wireless frame type 1 for broadcast access, and switching to Star Flash wireless frame type 2 or Star Flash wireless frame type 3 through physical layer parameter negotiation after entering the connection state; or, when the type of the opposite device is a device that only supports Star Flash wireless frame type 1, or a device with a maximum transmission power greater than the first power threshold, selecting Star Flash wireless frame type 1 for broadcast access; or, when the service type of the opposite device is IOT ultra-long-distance coverage service, when the distance between the opposite device and the communication device is greater than the first threshold, selecting Star Flash wireless frame type 4 for broadcast and connection, or, when the distance between the opposite device and the communication device is less than or equal to the first threshold, switching to Star Flash wireless frame type 2 or Star Flash wireless frame type 3 through physical layer parameter negotiation.

[0346] In some embodiments, the present application further provides a communication device 360 ​​for realizing the transmission of star flash signals. The communication device 360 ​​may include: a module for receiving first data from a management node via a first receiving power in a first time period of a first superframe; a module for receiving second data from a management node via a second receiving power in a second time period of the first superframe; wherein the modulation order of the first data is greater than the modulation order of the second data; and the first receiving power is different from the second receiving power. Optionally, as shown in FIG36 , the module for receiving the first data and the second data may be a communication module 3601, and the module for processing the received first data and the second data may be a processing module 3602.

[0347] Alternatively, the communication device 360 ​​may include: a module for receiving first data from the management node at a first receive power within a second superframe; and a module for receiving second data from the management node at a second receive power within a third superframe; wherein the modulation order of the first data is greater than the modulation order of the second data; and the first receive power is different from the second receive power. Optionally, as shown in FIG36 , the module for receiving the first data and the second data may be the communication module 3601, and the module for processing the received first data and the second data may be the processing module 3602.

[0348] The communication module and processing module in the embodiment of the present application can be deployed in the Star Flash module, Bluetooth module or WiFi module at the same time; or, the communication module in the embodiment of the present application can be deployed in the Star Flash module, Bluetooth module or WiFi module, and the processing module in the embodiment of the present application can be deployed in other modules of the module where the processing module is located; or, the processing module in the embodiment of the present application can be deployed in the Star Flash module, Bluetooth module or WiFi module, and the communication module in the embodiment of the present application can be deployed in other modules of the module where the processing module is located. The embodiment of the present application does not make specific limitations on this.

[0349] In another possible implementation, the communication device 360 ​​is also used to realize the transmission of Bluetooth signals or WiFi signals, and at least one of the Star Flash module, Bluetooth module and WiFi module shares at least one of the RF unit, modem unit, MAC unit and CPU.

[0350] In another possible implementation, the communication device 360 ​​is also used to realize the transmission of Bluetooth signals, but does not support the transmission of WiFi signals. The Star Flash module and the Bluetooth module are located in the same subsystem of the communication device 360, and the subsystem and PMU are integrated in the communication device 360.

[0351] In another possible implementation, the communication device 360 ​​is also used to realize the transmission of Bluetooth signals or WiFi signals. At least one of the Bluetooth modules or WiFi modules coexists and communicates with the Star Flash module through different antennas, and the coexistence strategy is channel avoidance.

[0352] In another possible implementation, the communication device 360 ​​is further used to determine the type of the opposite device and / or the service delay of the opposite device, and determine the link corresponding to the opposite device and / or the service for data transmission according to the link selection strategy.

[0353] In another possible implementation, the communication device 360 ​​is also used to: determine the type of the opposite device and / or the service delay of the opposite device, including: determining the type of the opposite device, the type of the opposite device includes an audio device type or a non-audio device type; when the type of the opposite device is an audio device type, determining the service delay of the opposite device.

[0354] In another possible implementation, the link selection strategy includes: when the service delay is greater than a first value, establishing an asynchronous unicast link or an asynchronous multicast link before performing data transmission; or, when the service delay is less than the first value and greater than a second value, establishing an asynchronous unicast link or an asynchronous multicast link, achieving synchronization by adding timestamps to data packets, and then performing data transmission; or, when the service delay is less than the second value, first establishing an asynchronous unicast link, and then establishing a synchronous unicast link or a synchronous multicast link before performing data transmission.

[0355] In another possible implementation, when the communication device 360 ​​is a non-audio device, the communication device 360 ​​is further configured to: transmit data via an asynchronous unicast or asynchronous multicast link.

[0356] In another possible implementation, the communication device 360 ​​is also used to: determine the type of the opposite device and / or the service delay of the opposite device, and determine the frame format type corresponding to the type of the opposite device and / or the service type of the opposite device according to the frame format selection strategy; wherein the frame format type includes Star Flash Wireless Frame Type 1, Star Flash Wireless Frame Type 2, Star Flash Wireless Frame Type 3 or Star Flash Wireless Frame Type 4.

[0357] In another possible implementation, the communication device 360 ​​is also used to: determine the type of the opposite device and / or the service delay of the opposite device, including: determining the type of the opposite device, the type of the opposite device includes an audio device type or a non-audio device type; when the type of the opposite device is an audio device type, determining the service delay of the opposite device.

[0358] In another possible implementation, the above-mentioned frame format selection strategy includes: when the service delay of the opposite device is less than the first duration, selecting Star Flash wireless frame type 1 for broadcast access, and switching to Star Flash wireless frame type 2 through physical layer parameter negotiation after the connection state; or, when the service delay of the opposite device is less than the first duration and the service anti-interference capability requirement is greater than the set threshold, selecting Star Flash wireless frame type 1 for broadcast access, and switching to Star Flash wireless frame type 2 or Star Flash wireless frame type 3 through physical layer parameter negotiation after entering the connection state; or, when the type of the opposite device is a device that only supports Star Flash wireless frame type 1, or a device with a maximum transmission power greater than the first power threshold, selecting Star Flash wireless frame type 1 for broadcast access; or, when the service type of the opposite device is IOT ultra-long-distance coverage service, when the distance between the opposite device and the communication device is greater than the first threshold, selecting Star Flash wireless frame type 4 for broadcast and connection, or, when the distance between the opposite device and the communication device is less than or equal to the first threshold, switching to Star Flash wireless frame type 2 or Star Flash wireless frame type 3 through physical layer parameter negotiation.

[0359] In another possible implementation, when the communication device 360 ​​is a non-audio device, the communication device 360 ​​is also used to: select Star Flash wireless frame type 1 for broadcast access, and after entering the connection state, switch to Star Flash wireless frame type 2 for data transmission through physical layer parameter negotiation.

[0360] The present application also provides a communication device as shown in Figure 37. Both the management node and the terminal node can adopt the structure shown in Figure 37, or include the components shown in Figure 37. Figure 37 is a schematic diagram of the composition of a communication device 3700 provided in an embodiment of the present application. The communication device 3700 can be a management node or a chip or system-on-chip in a management node; it can also be a terminal node or a chip or system-on-chip in a terminal node. As shown in Figure 37, the communication device 3700 includes a processor 3701, a transceiver 3702, and a communication line 3703.

[0361] Furthermore, the communication device 3700 may further include a memory 3704 . The processor 3701 , the memory 3704 and the transceiver 3702 may be connected via a communication line 3703 .

[0362] Processor 3701 is a central processing unit (CPU), a general-purpose processor, a network processor (NP), a digital signal processor (DSP), a microprocessor, a microcontroller, a programmable logic device (PLD), or any combination thereof. Processor 3701 may also be other devices with processing capabilities, such as circuits, devices, or software modules, without limitation.

[0363] Transceiver 3702 is used to communicate with other devices or other communication networks. Such other communication networks may be Ethernet, radio access networks (RAN), wireless local area networks (WLAN), etc. Transceiver 3702 may be a module, circuit, transceiver, or any device capable of communication.

[0364] The communication line 3703 is used to transmit information between the various components included in the communication device 3700.

[0365] The memory 3704 is used to store instructions, where the instructions may be computer programs.

[0366] Among them, the memory 3704 can be a read-only memory (ROM) or other types of static storage devices that can store static information and / or instructions, or a random access memory (RAM) or other types of dynamic storage devices that can store information and / or instructions, or an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compact disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), magnetic disk storage media or other magnetic storage devices, etc., without limitation.

[0367] It should be noted that the memory 3704 can exist independently of the processor 3701 or can be integrated with the processor 3701. The memory 3704 can be used to store instructions, program code, or some data. The memory 3704 can be located within the communication device 3700 or outside the communication device 3700, without limitation. The processor 3701 is configured to execute the instructions stored in the memory 3704 to implement the communication method provided in the following embodiments of this application.

[0368] In one example, the processor 3701 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 37 .

[0369] As an optional implementation, the communication device 3700 includes multiple processors. For example, in addition to the processor 3701 in Figure 37, it may also include a processor 3707.

[0370] As an optional implementation, the communication device 3700 further includes an output device 3705 and an input device 3706. For example, the input device 3706 is a keyboard, a mouse, a microphone, or a joystick, and the output device 3705 is a display screen, a speaker, or the like.

[0371] It should be noted that communication device 3700 can be a desktop computer, a portable computer, a network server, a mobile phone, a tablet computer, a wireless terminal, an embedded device, a chip system, or a device having a structure similar to that shown in FIG37 . Furthermore, the structure shown in FIG37 does not limit the communication device. In addition to the components shown in FIG37 , the communication device can include more or fewer components than shown, or combine certain components, or arrange the components differently.

[0372] In the embodiment of the present application, the chip system can be composed of chips, or can include chips and other discrete devices.

[0373] In addition, the actions and terms involved in the various embodiments of this application can refer to each other without limitation. The message names or parameter names in the messages exchanged between the various devices in the embodiments of this application are only examples, and other names can also be used in specific implementations without limitation.

[0374] The embodiments of the present application also provide a computer program product, which, when executed by a computer, can implement the functions of any of the above method embodiments.

[0375] The embodiments of the present application also provide a computer program, which, when executed by a computer, can implement the functions of any of the above method embodiments.

[0376] The embodiment of the present application also provides a computer-readable storage medium. All or part of the processes in the above-mentioned method embodiments can be completed by a computer program to instruct the relevant hardware, and the program can be stored in the above-mentioned computer-readable storage medium. When the program is executed, it can include the processes of the above-mentioned method embodiments. The computer-readable storage medium can be an internal storage unit of the terminal (including the data sending end and / or the data receiving end) of any of the above-mentioned embodiments, such as the hard disk or memory of the terminal. The above-mentioned computer-readable storage medium can also be an external storage device of the above-mentioned terminal, such as a plug-in hard disk equipped on the above-mentioned terminal, a smart memory card (smart media card, SMC), a secure digital (secure digital, SD) card, a flash card (flash card), etc. Further, the above-mentioned computer-readable storage medium can also include both the internal storage unit of the above-mentioned terminal and an external storage device. The above-mentioned computer-readable storage medium is used to store the above-mentioned computer program and other programs and data required by the above-mentioned terminal. The above-mentioned computer-readable storage medium can also be used to temporarily store data that has been output or is to be output.

[0377] It should be noted that the terms "first" and "second" in the specification, claims and drawings of this application are used to distinguish different objects, rather than to describe a specific order. "First" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this embodiment, unless otherwise specified, "multiple" means two or more.

[0378] Furthermore, the terms "include," "comprise," and "have," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or elements is not limited to the listed steps or elements, but may optionally include steps or elements not listed, or may optionally include other steps or elements inherent to the process, method, product, or apparatus.

[0379] It should be understood that in this application, "at least one (item)" refers to one or more. "Multiple" refers to two or more. "At least two (items)" refers to two or three and more than three. "And / or" is used to describe the association relationship of associated objects, indicating that three relationships can exist. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following items" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple. “When” and “if” both mean that corresponding measures will be taken under certain objective circumstances. They do not limit the time, nor do they require any judgment action when they are implemented, nor do they mean that there are other limitations.

[0380] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of this application should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner to facilitate understanding.

[0381] In this application, "sending information to ... (a terminal node)" can be understood as the destination of the information being the terminal node. This may include sending information directly or indirectly to the terminal node. "Receiving information from ... (a terminal node)" can be understood as the source of the information being the terminal node. This may include receiving information directly or indirectly from the terminal node. The information may undergo necessary processing between the source and destination, such as formatting changes, but the destination can still understand the valid information from the source.

[0382] Through the description of the above implementation methods, technical personnel in the relevant field can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0383] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the modules or units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another device, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0384] The units described as separate components may or may not be physically separate, and the components shown as units may be one physical unit or multiple physical units, that is, they may be located in one place or distributed in multiple places. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0385] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0386] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a readable storage medium. Based on this understanding, the technical solution of the embodiment of the present application or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for enabling a device (which can be a single-chip microcomputer, chip, etc.) or a processor to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

Claims

1. A communication method, characterized in that: include: Sending first data to the terminal node using a first transmit power within a first time period of the first superframe; Sending second data to the terminal node using a second transmit power within a second time period of the first superframe; The modulation order of the first data is greater than the modulation order of the second data; and the first transmission power is different from the second transmission power.

2. The method according to claim 1, characterized in that The end time of the first time period is earlier than or equal to the start time of the second time period.

3. The method according to claim 1 or 2, characterized in that The first transmit power is less than the second transmit power.

4. The method according to claim 3, characterized in that The method further comprises: Send a first indication message to the terminal node; wherein, the first indication message is used to indicate a power offset, the value of the power offset is a non-negative number, and the power offset is the difference between the transmission power of the common channel and the possible maximum transmission power value of the data channel within a preset time.

5. The method according to claim 3 or 4, characterized in that The method further comprises: In a third time period of the first superframe, common channel information is sent using the second transmit power; wherein an end time of the third time period is earlier than a start time of the first time period.

6. The method according to claim 1 or 2, characterized in that The first transmit power is greater than the second transmit power.

7. The method according to claim 6, characterized in that The method further comprises: Send a second indication message to the terminal node; wherein the second indication message is used to indicate a power offset, the power offset is a negative number, and the power offset is the difference between the transmission power of the common channel and the possible maximum transmission power value of the data channel within a preset time.

8. The method according to claim 6 or 7, characterized in that The method further comprises: sending common channel information using the second transmit power within a third time period of the first superframe; or sending common channel information at a third transmit power within a third time period of the first superframe; The end time of the third time period is earlier than the start time of the first time period; the third transmit power is less than the first transmit power, and the third transmit power is less than the second transmit power.

9. The method according to any one of claims 1 to 8, characterized in that The method further comprises: In a fourth time period of the first superframe, a power switching reserved symbol PSRS is sent using a fourth transmission power; wherein the end time of the fourth time period is earlier than or equal to the start time of the first time period; and the fourth transmission power is the maximum value of the transmission power of the data channel in the superframe where the PSRS is located.

10. A communication method, characterized in that: include: receiving first data from the management node using a first receiving power within a first time period of a first superframe; receiving second data from the management node using a second receiving power within a second time period of the first superframe; The modulation order of the first data is greater than the modulation order of the second data; and the first receiving power is different from the second receiving power.

11. The method according to claim 10, characterized in that The end time of the first time period is earlier than or equal to the start time of the second time period.

12. The method according to claim 10 or 11, characterized in that The first received power is less than the second received power.

13. The method according to claim 12, characterized in that The method further comprises: Receive first indication information from the management node; wherein the first indication information is used to indicate a power offset, the value of the power offset is a non-negative number, and the power offset is the difference between the transmit power of the common channel and the maximum possible transmit power value of the data channel within a preset time; Adjust the automatic gain control (AGC) gear according to the first indication information.

14. The method according to claim 12 or 13, characterized in that The method further comprises: In a third time period of the first superframe, common channel information is received from the management node using the second receiving power; wherein an end time of the third time period is earlier than a start time of the first time period.

15. The method according to claim 10 or 11, characterized in that The first received power is greater than the second received power.

16. The method according to claim 15, characterized in that The method further comprises: Receive second indication information from the management node; wherein the second indication information is used to indicate a power offset, the power offset is a negative number, and the power offset is the difference between the transmit power of the common channel and the maximum possible transmit power value of the data channel within a preset time; Adjust the automatic gain control (AGC) gear according to the second indication information.

17. The method according to claim 15 or 16, characterized in that The method further comprises: receiving, during a third time period of the first superframe, common channel information from the management node using the second receiving power; or receiving, within a third time period of the first superframe, common channel information from the management node using a third receiving power; Among them, the end time of the third time period is earlier than the start time of the first time period; the third receiving power is less than the first receiving power, and the third receiving power is less than the second receiving power.

18. The method according to any one of claims 10 to 17, characterized in that: The method further comprises: During a fourth time period of the first superframe, a power switching reservation symbol PSRS is received from the management node through a fourth receiving power; wherein the end time of the fourth time period is earlier than or equal to the start time of the first time period; and the fourth receiving power is the maximum value of the receiving power of the data channel in the superframe where the PSRS is located.

19. The method according to claim 18, characterized in that The method further comprises: Adjust the AGC gear according to the PSRS.

20. A communication device, characterized in that: The communication device is used to realize the transmission of star flash signals, including: A module for sending first data to a terminal node using a first transmit power within a first time period of a first superframe; A module for sending second data to the terminal node using a second transmit power within a second time period of the first superframe; The modulation order of the first data is greater than the modulation order of the second data; and the first transmission power is different from the second transmission power.

21. The communication device according to claim 20, wherein: The communication device is also used to realize the transmission of Bluetooth signals or wireless fidelity WiFi signals, and at least one module among the Star Flash module, the Bluetooth module and the WiFi module shares a radio frequency RF unit.

22. The communication device according to claim 20 or 21, characterized in that The communication device is also used to realize the transmission of Bluetooth signals, but does not support the transmission of WiFi signals. The Star Flash module and the Bluetooth module are located in the same subsystem of the communication device, and the subsystem and the power management module PMU are integrated in the communication device.

23. The communication device according to any one of claims 20 to 22, characterized in that: The communication device is also used to realize the transmission of Bluetooth signals or WiFi signals. At least one of the Bluetooth module or WiFi module and the Star Flash module coexist and communicate through different antennas, and the coexistence strategy is channel avoidance.

24. The communication device according to any one of claims 20 to 23, characterized in that: The communication device is further configured to determine the type of the opposite device and / or the service delay of the opposite device, and determine the link corresponding to the opposite device and / or the service for data transmission according to a link selection strategy.

25. The communication device according to claim 24, characterized in that The communication device is further configured to determine a type of an opposite-end device and / or a service delay of the opposite-end device, including: Determining a type of a peer device, where the type of the peer device includes an audio device type or a non-audio device type; In a case where the type of the opposite-end device is the audio device type, a service delay of the opposite-end device is determined.

26. The communication device according to claim 24 or 25, characterized in that The link selection strategy includes: When the service delay is greater than the first value, establishing an asynchronous unicast link or an asynchronous multicast link and then performing data transmission; or When the service delay is less than the first value and greater than the second value, the asynchronous unicast link or the asynchronous multicast link is established, and data transmission is performed after synchronization is achieved by adding timestamps to data packets; or When the service delay is less than the second value, the asynchronous unicast link is established first, and then the synchronous unicast link or the synchronous multicast link is established to perform data transmission.

27. The communication device according to any one of claims 20 to 26, characterized in that: The communication device is also used to: determine the type of the opposite device and / or the service delay of the opposite device, and determine the frame format type corresponding to the type of the opposite device and / or the service type of the opposite device according to the frame format selection strategy; wherein the frame format type includes Star Flash Wireless Frame Type 1, Star Flash Wireless Frame Type 2, Star Flash Wireless Frame Type 3 or Star Flash Wireless Frame Type 4.

28. The communication device according to claim 27, wherein: The communication device is further configured to determine a type of an opposite-end device and / or a service delay of the opposite-end device, including: Determining a type of a peer device, where the type of the peer device includes an audio device type or a non-audio device type; In a case where the type of the opposite-end device is the audio device type, a service delay of the opposite-end device is determined.

29. The communication device according to claim 27 or 28, characterized in that The frame format selection strategy includes: When the service delay of the opposite device is less than the first duration, select the Star Flash wireless frame type 1 for broadcast access, and switch to the Star Flash wireless frame type 2 through physical layer parameter negotiation after the connection state; or When the service delay of the opposite device is less than the first duration and the service anti-interference capability requirement is greater than the set threshold, the Star Flash wireless frame type 1 is selected for broadcast access, and after entering the connected state, the Star Flash wireless frame type 2 or the Star Flash wireless frame type 3 is switched through physical layer parameter negotiation; or When the type of the opposite device is a device that only supports the Star Flash wireless frame type 1, or a device whose maximum transmission power is greater than a first power threshold, select the Star Flash wireless frame type 1 for broadcast access; or In the case where the service type of the opposite device is the Internet of Things (IoT) ultra-long-distance coverage service, when the distance between the opposite device and the communication device is greater than a first threshold, the Starflash wireless frame type 4 is selected for broadcasting and connection, or, when the distance between the opposite device and the communication device is less than or equal to the first threshold, the Starflash wireless frame type 2 or the Starflash wireless frame type 3 is switched through physical layer parameter negotiation.

30. A communication device, characterized in that: The communication device is used to realize the transmission of star flash signals, including: A module for receiving first data from a management node using a first receiving power within a first time period of a first superframe; A module for receiving second data from the management node at a second receiving power within a second time period of the first superframe; The modulation order of the first data is greater than the modulation order of the second data; and the first receiving power is different from the second receiving power.

31. The communication device according to claim 30, wherein: The communication device is also used to realize the transmission of Bluetooth signals or wireless fidelity WiFi signals, and at least one module among the Star Flash module, the Bluetooth module and the WiFi module shares a radio frequency RF unit.

32. The communication device according to claim 30 or 31, characterized in that The communication device is also used to realize the transmission of Bluetooth signals, but does not support the transmission of WiFi signals. The Star Flash module and the Bluetooth module are located in the same subsystem of the communication device, and the subsystem and the power management module PMU are integrated in the communication device.

33. The communication device according to any one of claims 30 to 32, characterized in that: The communication device is also used to realize the transmission of Bluetooth signals or WiFi signals. At least one of the Bluetooth module or WiFi module and the Star Flash module coexist and communicate through different antennas, and the coexistence strategy is channel avoidance.

34. The communication device according to any one of claims 30 to 33, characterized in that: The communication device is further configured to determine the type of the opposite device and / or the service delay of the opposite device, and determine the link corresponding to the opposite device and / or the service for data transmission according to a link selection strategy.

35. The communication device according to claim 34, characterized in that The communication device is further configured to determine a type of an opposite-end device and / or a service delay of the opposite-end device, including: Determining a type of a peer device, where the type of the peer device includes an audio device type or a non-audio device type; In a case where the type of the opposite-end device is the audio device type, a service delay of the opposite-end device is determined.

36. The communication device according to claim 34 or 35, characterized in that The link selection strategy includes: When the service delay is greater than the first value, establishing an asynchronous unicast link or an asynchronous multicast link and then performing data transmission; or When the service delay is less than the first value and greater than the second value, the asynchronous unicast link or the asynchronous multicast link is established, and data transmission is performed after synchronization is achieved by adding timestamps to data packets; or When the service delay is less than the second value, the asynchronous unicast link is established first, and then the synchronous unicast link or the synchronous multicast link is established to perform data transmission.

37. The communication device according to any one of claims 30 to 33, characterized in that: In the case that the communication device is a non-audio device, the communication device is further configured to: transmit data via an asynchronous unicast or asynchronous multicast link.

38. The communication device according to any one of claims 30 to 37, characterized in that: The communication device is also used to: determine the type of the opposite device and / or the service delay of the opposite device, and determine the frame format type corresponding to the type of the opposite device and / or the service type of the opposite device according to the frame format selection strategy; wherein the frame format type includes Star Flash Wireless Frame Type 1, Star Flash Wireless Frame Type 2, Star Flash Wireless Frame Type 3 or Star Flash Wireless Frame Type 4.

39. The communication device according to claim 38, characterized in that The communication device is further configured to determine a type of an opposite-end device and / or a service delay of the opposite-end device, including: Determining a type of a peer device, where the type of the peer device includes an audio device type or a non-audio device type; In a case where the type of the opposite-end device is the audio device type, a service delay of the opposite-end device is determined.

40. The communication device according to claim 38 or 39, characterized in that The frame format selection strategy includes: When the service delay of the opposite device is less than the first duration, select the Star Flash wireless frame type 1 for broadcast access, and switch to the Star Flash wireless frame type 2 through physical layer parameter negotiation after the connection state; or When the service delay of the opposite device is less than the first duration and the service anti-interference capability requirement is greater than the set threshold, the Star Flash wireless frame type 1 is selected for broadcast access, and after entering the connected state, the Star Flash wireless frame type 2 or the Star Flash wireless frame type 3 is switched through physical layer parameter negotiation; or When the type of the opposite device is a device that only supports the Starflash wireless frame type 1, or a device whose maximum transmit power is greater than a first power threshold, select the Starflash wireless frame type 1 for broadcast access; or In the case where the service type of the opposite device is the Internet of Things (IoT) ultra-long-distance coverage service, when the distance between the opposite device and the communication device is greater than a first threshold, the Starflash wireless frame type 4 is selected for broadcasting and connection, or, when the distance between the opposite device and the communication device is less than or equal to the first threshold, the Starflash wireless frame type 2 or the Starflash wireless frame type 3 is switched through physical layer parameter negotiation.

41. The communication device according to any one of claims 30 to 37, characterized in that: When the communication device is a non-audio device, the communication device is also used to: select Star Flash wireless frame type 1 for broadcast access, and after entering the connection state, switch to Star Flash wireless frame type 2 for data transmission through physical layer parameter negotiation.

42. A communication device, characterized in that The communication device includes a processor; the processor is configured to run a computer program or instruction so that the communication method according to any one of claims 1 to 9 is executed, or the communication method according to any one of claims 10 to 19 is executed.

43. A communication device, characterized in that The communication device includes an interface circuit and a logic circuit; the interface circuit is used to input and / or output information; the logic circuit is used to execute the communication method described in any one of claims 1 to 9, or to execute the communication method described in any one of claims 10 to 19, and to process and / or generate the information based on the information.

44. A computer-readable storage medium, characterized in that The computer-readable storage medium stores computer instructions or programs, which, when executed on a computer, enable the communication method according to any one of claims 1 to 9 to be executed, or enable the communication method according to any one of claims 10 to 19 to be executed.

45. A computer program product, characterized in that The computer program product includes computer instructions; when part or all of the computer instructions are run on a computer, the communication method according to any one of claims 1 to 9 is executed, or the communication method according to any one of claims 10 to 19 is executed.

Images