Transmit power adjustment method, device, terminal and storage medium

Abstract

The present application discloses a method, device, terminal and storage medium for adjusting transmission power, the method comprising: judging whether a preset time has been reached; if the preset time has been reached, judging whether any one of a channel has been competed for and a response trigger frame has been received; if any one of a channel has been competed for and a response trigger frame has been received, reporting a first transmission power through a TPC report control field; based on the first transmission power, calculating the path loss, so as to adjust the second transmission power through the path loss. The present invention actively reports TPC information through a TPC report control field without a request by an AP or a STA, wherein the TPC information includes a first transmission power, so as to obtain the first transmission power in a timely manner, and adjust the second transmission power based on the first transmission power, so as to ensure that the transmission power can be adaptively adjusted in the event of a link problem.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a transmission power adjustment method, device, terminal and storage medium. Background Art

[0002] STAs (terminals or stations) operating in the 5 GHz frequency band generally need to perform spectrum management operations according to regulatory requirements. However, how to adaptively adjust the transmission power, that is, how to adjust the transmission power of the MPDU for message transmission to the STA, has become an urgent problem to be solved.

[0003] Currently, the AP generally sends a TPC report request to the STA to obtain the TPC information of the STA, and then dynamically adjusts the transmit power of the MPDU for message transmission to the STA according to the TPC information.

[0004] However, in the case where the link between the AP and the STA changes, the above method will cause the STA to be unable to report TPC information in a timely manner, resulting in the problem of being unable to adjust the transmission power of the MPDU for message transmission to the STA. Summary of the invention

[0005] The main purpose of the present application is to provide a transmit power adjustment method, device, terminal and storage medium to solve the problem in the related art that the transmit power of the MPDU for message transmission to the STA cannot be adjusted.

[0006] In order to achieve the above objectives, in a first aspect, the present application provides a transmission power adjustment method, comprising:

[0007] Determine whether the preset time has been reached;

[0008] If the preset time is reached, determine whether the channel is contended for and any one of the response trigger frames is received;

[0009] If any one of the channel is contended and the response trigger frame is received, the first transmission power is reported through the TPC report control field;

[0010] Based on the first transmit power, a path loss is calculated to adjust the second transmit power by the path loss.

[0011] In a possible implementation, if any one of the channel is contended for and the response trigger frame is received, the first transmit power is reported through the TPC report control field, including:

[0012] If the AP competes for the channel through EDCA, it sends the target frame to the STA;

[0013] After the STA receives the target frame, it parses the target frame to obtain the TPC report control field;

[0014] The TPC report control field is extracted to obtain the first transmit power.

[0015] In a possible implementation, if any one of the channel is contended for and the response trigger frame is received, the first transmit power is reported through the TPC report control field, including:

[0016] If the STA competes for a channel through EDCA, it sends a target frame to the AP;

[0017] After the AP receives the target frame, it parses the target frame to obtain the TPC report control field;

[0018] The TPC report control field is extracted to obtain the first transmit power.

[0019] In a possible implementation manner, calculating a path loss based on the first transmit power to adjust the second transmit power according to the path loss includes:

[0020] Subtracting the first transmission power from the received power of the target frame to obtain a difference;

[0021] The difference is used as the path loss to adjust the second transmit power according to the path loss, wherein the second transmit power is used to represent the transmit power for transmitting a message to the opposite end device.

[0022] In a possible implementation manner, the target frame includes at least one of a QoS Data frame, a QoS Null frame, and a management frame.

[0023] In a possible implementation, if the channel and any one of the response trigger frames are competed for, the first transmit power is reported through the TPC report control field, including:

[0024] If the STA responds to the trigger frame, it sends a response frame corresponding to the trigger frame to the AP;

[0025] After receiving the response frame, the AP parses the response frame to obtain the TPC report control field;

[0026] The TPC report control field is extracted to obtain the first transmit power.

[0027] In a possible implementation manner, calculating a path loss based on the first transmit power to adjust the second transmit power according to the path loss includes:

[0028] Subtract the first transmission power from the reception power of the response frame to obtain a difference;

[0029] The difference is used as the path loss to adjust the second transmit power according to the path loss, wherein the second transmit power is used to represent the transmit power for transmitting a message to the opposite end device.

[0030] In a possible implementation, the TPC report control field includes a control ID, a first transmit power, and link margin information.

[0031] In a second aspect, an embodiment of the present invention provides a transmission power adjustment device, including:

[0032] The first judgment module is used to judge whether a preset time has been reached;

[0033] A second judgment module is used to judge whether the channel is competed for and any one of the response trigger frames is received when a preset time is reached;

[0034] A power reporting module, configured to report the first transmission power through a TPC report control field if any one of the channel is contended for and a response trigger frame is received;

[0035] The power adjustment module is used to calculate the path loss based on the first transmission power, so as to adjust the second transmission power according to the path loss.

[0036] In a third aspect, an embodiment of the present invention provides a terminal, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of any of the above transmission power adjustment methods when executing the computer program.

[0037] In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, the steps of any of the above transmission power adjustment methods are implemented.

[0038] The embodiments of the present invention provide a method, device, terminal and storage medium for adjusting transmit power, including: judging whether a preset time has been reached, if the preset time has been reached, judging whether any one of a channel has been competed for and a response trigger frame has been received, if any one of a channel has been competed for and a response trigger frame has been received, reporting a first transmit power through a TPC report control field, and calculating a path loss based on the first transmit power, so as to adjust a second transmit power through the path loss. The present invention actively reports TPC information through a TPC report control field without a request by an AP or a STA, wherein the TPC information includes a first transmit power, so as to obtain the first transmit power in a timely manner, and adjust the second transmit power based on the first transmit power, so as to ensure that the transmit power can be adaptively adjusted even when a link problem occurs. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The schematic embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application. In the drawings:

[0040] Figure 1 is a flow chart of an implementation method of a transmission power adjustment method provided by an embodiment of the present invention;

[0041] Figure 2 It is a schematic diagram of the structure of a TPC report control field provided by an embodiment of the present invention;

[0042] Figure 3 is a flow chart of an implementation method of a transmission power adjustment method provided by another embodiment of the present invention;

[0043] Figure 4 is a flow chart of an implementation method of a transmission power adjustment method provided by another embodiment of the present invention;

[0044] Figure 5 It is a structural schematic diagram of a transmission power adjustment device provided by an embodiment of the present invention;

[0045] Figure 6 is a schematic diagram of a terminal provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present invention and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in sequences other than those illustrated or described herein.

[0048] It should be understood that in various embodiments of the present invention, the size of the sequence number of each process does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0049] It should be understood that in the present invention, "including" and "having" 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 units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0050] It should be understood that in the present invention, "plurality" refers to two or more than two. "And / or" is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the objects associated before and after are in an "or" relationship. "Contains A, B and C", "Contains A, B, C" means that A, B, and C are all included, "Contains A, B or C" means that one of A, B, and C is included, and "Contains A, B and / or C" means that any one, any two, or any three of A, B, and C are included.

[0051] It should be understood that in the present invention, "B corresponding to A", "B corresponding to A", "A corresponds to B" or "B corresponds to A" means that B is associated with A and B can be determined based on A. Determining B based on A does not mean determining B based only on A, but B can also be determined based on A and / or other information. A and B match when the similarity between A and B is greater than or equal to a preset threshold.

[0052] Depending on the context, "if" as used herein may be interpreted as "when" or "when" or "in response to determining" or "in response to detecting."

[0053] The technical solution of the present invention is described in detail with specific embodiments below. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0054] In order to make the purpose, technical solutions and advantages of the present invention more clear, specific embodiments will be described below in conjunction with the accompanying drawings.

[0055] In one embodiment, Figure 1 As shown, a transmission power adjustment method is provided, comprising the following steps:

[0056] Step S101: Determine whether a preset time has been reached.

[0057] The preset time refers to the time when TPC information is reported, and this preset time can be set according to specific needs. If TPC information needs to be reported at 12:00 and 16:00 every day, the preset time is set to 12:00 and 16:00. If TPC information is reported every 30 minutes, the next reporting time can be set to 30 minutes later than the previous reporting time.

[0058] Step S102: If the preset time is reached, determine whether a channel is contended for and any one of a response trigger frame is received.

[0059] The timed active reporting of TPC information in the present application needs to first determine the time. If the preset time is reached, it is then determined whether the channel is competed for or received in the response trigger frame, so that the TPC report control field containing the TPC information is set in different types of frames to report the TPC information. Among them, if the channel is competed for, the TPC report control field can be set in a management frame, etc. by actively reporting; if the response trigger frame is received, it is necessary to respond according to the trigger frame to set the TPC report control field in the response frame.

[0060] Step S103: if any one of the channel is contended for and the response trigger frame is received, the first transmit power is reported through the TPC report control field;

[0061] Step S104: Calculate the path loss based on the first transmit power to adjust the second transmit power according to the path loss.

[0062] The present application sets up two ends, namely the AP end and the STA end. AP is a wireless access point, which is the creator of a wireless network and the central node of the network. A wireless router generally used in a home or office is an AP. STA is each terminal connected to a wireless network (such as a laptop, PAD and other user devices that can be connected to the Internet), and can also be called a site. In the present application, when competing for a channel and responding to any one of the target frames, the AP end and the STA end do not need to request each other, and can report the first transmission power through the TPC report control field to adjust the second transmission power based on the first transmission power, ensuring that in the event of a link problem, the first transmission power can be reported in time to achieve adaptive adjustment of the second transmission power.

[0063] Before describing the steps for the AP and STA to report TPC report information to each other, it is necessary to explain the TPC report control field, such as Figure 2 As shown, a TPC report control field provided by the present application is as follows:

[0064] The TPC report control field includes a control ID and TPC report information. The TPC report control field is mainly used to indicate the TPC report information, that is, the first transmission power ( Figure 2 transmit power in) and link margin information.

[0065] It should be noted that, although the TPC report control field is mainly used to indicate TPC report information, in this application, the link margin information is a reserved field, and only the transmit power in the TPC report information is sent.

[0066] The TPC report control field can be used as an A-Control subfield variant of the HT control variant and the HE variant. Its format is as follows: Figure 2 As shown, the control ID indicates that the variant type is a TPC report control variant, the transmit power field is set to the transmit power for transmitting the frame containing the TPC report control variant, and the link margin field indicates the link margin for the reception time and reception rate of the frame requesting a response.

[0067] Since the TPC report control field can actively indicate TPC report information, the TPC report control field can be set in the target frame or the response frame to achieve the goal of actively reporting the TPC report information to adjust the second transmit power.

[0068] The AP and STA report TPC report information to each other, including: the first case: the AP actively reports TPC report information to the STA, so that the STA adjusts the second transmit power based on the first transmit power in the TPC report information. The second case, the STA actively reports TPC report information to the AP, so that the AP adjusts the second transmit power based on the first transmit power in the TPC report information.

[0069] In a specific embodiment, in combination Figure 3 , the AP actively reports TPC report information to the STA, so that the STA adjusts the second transmit power based on the first transmit power in the TPC report information. The execution steps include: if the AP competes for the channel through EDCA (Enhanced Distribution Channel Access), it sends a target frame to the STA, and after the STA receives the target frame, it parses the target frame to obtain the TPC report control field, and then the STA extracts the TPC report control field to obtain the first transmit power, and then subtracts the first transmit power from the received power of the target frame to obtain the difference, and finally uses the difference as the path loss to adjust the second transmit power through the path loss, wherein the second transmit power is used to characterize the transmit power for transmitting messages to the opposite device. Wherein, the target frame includes at least one of a QoS Data frame, a QoS Null frame, and a management frame.

[0070] There are two ways for the STA to actively report TPC report information to the AP, so that the STA adjusts the second transmit power based on the first transmit power in the TPC report information: In the first way, the STA competes for the channel and actively reports TPC report information to the AP, so that the STA adjusts the second transmit power based on the first transmit power in the TPC report information. In the second way, the STA responds to the trigger frame and actively reports TPC report information to the AP, so that the STA adjusts the second transmit power based on the first transmit power in the TPC report information.

[0071] In a specific embodiment, in combination Figure 4 , STA competes for the channel, actively reports TPC report information to the AP, and the execution steps of the STA adjusting the second transmit power based on the first transmit power in the TPC report information include: if STA competes for the channel through EDCA, it sends a target frame to the AP, and after the AP receives the target frame, it parses the target frame to obtain the TPC report control field, and then extracts the TPC report control field to obtain the first transmit power, and then subtracts the first transmit power from the received power of the target frame to obtain the difference, and finally uses the difference as the path loss to adjust the second transmit power through the path loss, wherein the second transmit power is used to characterize the transmit power for transmitting messages to the opposite device. Wherein, the target frame includes at least one of a QoS Data frame, a QoS Null frame, and a management frame.

[0072] In another specific embodiment, in combination Figure 4 , the STA responds to the trigger frame and actively reports the TPC report information to the AP, so that the STA adjusts the second transmit power based on the first transmit power in the TPC report information. The execution steps include: if the STA responds to the trigger frame, it sends a response frame corresponding to the trigger frame to the AP, and after the AP receives the response frame, it parses the response frame to obtain the TPC report control field, and then extracts the TPC report control field to obtain the first transmit power, and then subtracts the first transmit power from the received power of the response frame to obtain the difference, and finally uses the difference as the path loss to adjust the second transmit power through the path loss, wherein the second transmit power is used to characterize the transmit power for message transmission to the opposite device. Among them, the response frame is a trigger frame other than the MU-RTS trigger frame, which can be a basic trigger frame, a buffer status report polling trigger frame, a bandwidth inquiry report polling trigger frame, etc.

[0073] It should be noted that, in the above embodiment, if the STA receives the TPC report information sent by the AP, the second transmit power is used to characterize the transmit power for transmitting messages to the opposite device, wherein the opposite device refers to the AP associated with the STA; if the AP receives the TPC report information sent by the STA, the second transmit power is used to characterize the transmit power for transmitting messages to the opposite device, wherein the opposite device refers to the STA associated with the AP.

[0074] The embodiment of the present invention provides a method for adjusting transmit power, including: judging whether a preset time has been reached, if the preset time has been reached, judging whether any one of a channel has been competed for and a response trigger frame has been received, if any one of a channel has been competed for and a response trigger frame has been received, reporting a first transmit power through a TPC report control field, and calculating a path loss based on the first transmit power, so as to adjust a second transmit power through the path loss. The present invention actively reports TPC information through a TPC report control field without a request by an AP or a STA, wherein the TPC information includes a first transmit power, so as to obtain the first transmit power in a timely manner, and adjust the second transmit power based on the first transmit power, so as to ensure that the transmit power can be adaptively adjusted even when a link problem occurs.

[0075] It should be understood that the order of execution of the steps in the above embodiment does not necessarily mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present invention.

[0076] The following is an embodiment of the device of the present invention. For details not described in detail therein, reference may be made to the corresponding method embodiment described above.

[0077] Figure 5 A schematic diagram of the structure of a transmission power adjustment device provided by an embodiment of the present invention is shown. For the convenience of description, only the part related to the embodiment of the present invention is shown. A transmission power adjustment device includes a first judgment module 51, a second judgment module 52, a power reporting module 53 and a power adjustment module 54, which are specifically as follows:

[0078] A first judging module 51, used to judge whether a preset time has been reached;

[0079] A second determination module 52 is used to determine whether a channel is contended for and any one of a response trigger frame is received when a preset time is reached;

[0080] A power reporting module 53, configured to report the first transmit power through a TPC report control field if any one of the channel is contended for and a response trigger frame is received;

[0081] The power adjustment module 54 is used to calculate the path loss based on the first transmission power, so as to adjust the second transmission power according to the path loss.

[0082] In a possible implementation, the power reporting module 53 includes:

[0083] The first sending submodule is used to send a target frame to the STA if the AP competes for a channel through EDCA;

[0084] The first parsing submodule is used to parse the target frame after the STA receives the target frame to obtain the TPC report control field;

[0085] The first information extraction submodule is used to extract the TPC report control field to obtain the first transmit power.

[0086] In a possible implementation, the power reporting module 53 includes:

[0087] The second sending submodule is used to send a target frame to the AP if the STA competes for a channel through EDCA;

[0088] The second parsing submodule is used to parse the target frame after the AP receives the target frame to obtain the TPC report control field;

[0089] The second information extraction submodule is used to extract the TPC report control field to obtain the first transmit power.

[0090] In a possible implementation, the power regulation module 54 includes:

[0091] A first calculation submodule is used to obtain a difference by subtracting the first transmission power from the reception power of the target frame;

[0092] The first regulating submodule is used to use the difference as the path loss to regulate the second transmit power through the path loss, wherein the second transmit power is used to represent the transmit power for transmitting a message to the opposite end device.

[0093] In a possible implementation manner, the target frame includes at least one of a QoS Data frame, a QoS Null frame, and a management frame.

[0094] In a possible implementation, the power reporting module 53 includes:

[0095] A third sending module, configured to send a response frame corresponding to the trigger frame to the AP if the STA responds to the trigger frame;

[0096] A third parsing module is used to parse the response frame after the AP receives the response frame to obtain the TPC report control field;

[0097] The third information extraction module is used to extract the TPC report control field to obtain the first transmission power.

[0098] In a possible implementation, the power regulation module 54 includes:

[0099] A second calculation submodule is used to obtain a difference by subtracting the first transmission power from the reception power of the response frame;

[0100] The second regulating submodule is used to use the difference as the path loss to adjust the second transmit power through the path loss, wherein the second transmit power is used to represent the transmit power for transmitting a message to the opposite device.

[0101] In a possible implementation, the TPC report control field includes a control ID, a first transmit power, and link margin information.

[0102] Figure 6 is a schematic diagram of a terminal provided by an embodiment of the present invention. Figure 6 As shown, the terminal 6 of this embodiment includes: a processor 61, a memory 62, and a computer program 63 stored in the memory 62 and executable on the processor 61. When the processor 61 executes the computer program 63, the steps in the above-mentioned various transmit power adjustment method embodiments are implemented, for example Figure 1 Alternatively, when the processor 61 executes the computer program 63, the functions of each module / unit in the above-mentioned embodiments of the transmission power adjustment device are realized, for example Figure 5 Functionality of modules / units 51 to 54 shown.

[0103] The present invention also provides a readable storage medium, in which a computer program is stored. When the computer program is executed by a processor, it is used to implement the transmission power adjustment method provided by the above-mentioned various embodiments.

[0104] Among them, the readable storage medium can be a computer storage medium or a communication medium. The communication medium includes any medium that facilitates the transmission of a computer program from one place to another. The computer storage medium can be any available medium that can be accessed by a general or special-purpose computer. For example, a readable storage medium is coupled to a processor so that the processor can read information from the readable storage medium and write information to the readable storage medium. Of course, the readable storage medium can also be a component of the processor. The processor and the readable storage medium can be located in an application-specific integrated circuit (ASIC). In addition, the ASIC can be located in a user device. Of course, the processor and the readable storage medium can also exist in a communication device as discrete components. The readable storage medium can be a read-only memory (ROM), a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, and an optical data storage device, etc.

[0105] The present invention also provides a program product, which includes an execution instruction, which is stored in a readable storage medium. At least one processor of a device can read the execution instruction from the readable storage medium, and at least one processor executes the execution instruction so that the device implements the transmission power adjustment method provided by the above various embodiments.

[0106] In the embodiments of the above-mentioned devices, it should be understood that the processor may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), etc. The general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc. The steps of the method disclosed in the present invention may be directly embodied as being executed by a hardware processor, or may be executed by a combination of hardware and software modules in the processor.

[0107] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the protection scope of the present invention.

Claims

1. A method for adjusting transmission power, characterized in that: include: Determine whether the preset time has been reached; If the preset time is reached, determine whether the channel is contended for and any one of the response trigger frames is received; If any one of the channel is contended and the response trigger frame is received, the first transmission power is reported through the TPC report control field; Based on the first transmit power, calculating a path loss to adjust a second transmit power by the path loss; If competing for the channel and responding to any one of the trigger frames, reporting the first transmit power through the TPC report control field includes: If the STA responds to the trigger frame, it sends a response frame corresponding to the trigger frame to the AP; After the AP receives the response frame, it parses the response frame to obtain the TPC report control field; Extracting the TPC report control field to obtain the first transmit power; The calculating a path loss based on the first transmit power to adjust the second transmit power by the path loss includes: Subtracting the first transmission power from the reception power of the response frame to obtain a difference; The difference is used as the path loss to adjust the second transmit power according to the path loss, wherein the second transmit power is used to represent the transmit power for transmitting a message to the opposite device.

2. The transmission power adjustment method according to claim 1, characterized in that: If the channel is contended for and any one of the response trigger frame is received, reporting the first transmit power through the TPC report control field includes: If the AP competes for the channel through EDCA, it sends the target frame to the STA; After the STA receives the target frame, it parses the target frame to obtain the TPC report control field; The TPC report control field is extracted to obtain the first transmit power.

3. The transmission power adjustment method according to claim 1, characterized in that: If the channel is contended for and any one of the response trigger frame is received, reporting the first transmit power through the TPC report control field includes: If the STA competes for a channel through EDCA, it sends a target frame to the AP; After the AP receives the target frame, it parses the target frame to obtain the TPC report control field; The TPC report control field is extracted to obtain the first transmit power.

4. The transmission power adjustment method according to claim 2 or 3, characterized in that: The calculating a path loss based on the first transmit power to adjust the second transmit power by the path loss includes: Subtracting the first transmit power from the received power of the target frame to obtain a difference; The difference is used as the path loss to adjust the second transmit power according to the path loss, wherein the second transmit power is used to represent the transmit power for transmitting a message to the opposite device.

5. The transmission power adjustment method according to claim 4, characterized in that: The target frame includes at least one of a QoSData frame, a QoSNull frame and a management frame.

6. The transmission power adjustment method according to claim 1, characterized in that: The TPC report control field includes a control ID, the first transmit power, and link margin information.

7. A transmission power adjustment device, characterized in that: include: The first judgment module is used to judge whether a preset time has been reached; A second judgment module is used to judge whether the channel is competed for and any one of the response trigger frames is received when a preset time is reached; A power reporting module, configured to report the first transmission power through a TPC report control field if any one of the channel is contended for and a response trigger frame is received; a power adjustment module, configured to calculate a path loss based on the first transmission power, so as to adjust a second transmission power according to the path loss; If competing for the channel and responding to any one of the trigger frames, reporting the first transmit power through the TPC report control field includes: If the STA responds to the trigger frame, it sends a response frame corresponding to the trigger frame to the AP; After the AP receives the response frame, it parses the response frame to obtain the TPC report control field; Extracting the TPC report control field to obtain the first transmit power; The calculating a path loss based on the first transmit power to adjust the second transmit power by the path loss includes: Subtracting the first transmission power from the reception power of the response frame to obtain a difference; The difference is used as the path loss to adjust the second transmit power according to the path loss, wherein the second transmit power is used to represent the transmit power for transmitting a message to the opposite device.

8. A terminal comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the steps of the transmission power adjustment method according to any one of claims 1 to 6 are implemented.

9. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the transmission power adjustment method according to any one of claims 1 to 6 are implemented.

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