Transmission power adjustment method, device and storage medium

Abstract

The present application provides a transmission power adjustment method, a device and a storage medium. The method comprises: identifying whether a current service scenario is a first service of enhanced mobile broadband and / or ultra-reliable low-latency communication; when it is determined that the current service is the first service, in the entire operation process of the first service, periodically evaluating the transmission power of a first channel corresponding to the first service in a current cycle and a power backoff value corresponding to the first channel in the cycle; then dynamically adjusting the transmission power on the basis of the first transmission power, the power backoff value, and a transmission power limit value corresponding to an area where the electronic device is currently located; and finally, transmitting a signal in the first channel at the adjusted transmission power suitable for the cycle. Thus, in the entire operation process of the first service, signals can be transmitted at a proper transmission power, the communication quality is ensured, and it can also be ensured that users are in a safe electromagnetic radiation range.

Description

Transmit power adjustment method, device and storage medium

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on July 26, 2023, with application number 202310927215.7 and invention name “Method, device and storage medium for adjusting transmission power”, 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 method, device, and storage medium for adjusting transmission power. Background Art

[0003] With the development of communication technology and terminal technology, electronic devices can realize more and more functions. While electronic devices bring convenience to users' daily life and work, they also expose users to more electromagnetic radiation.

[0004] Since electromagnetic radiation can cause electromagnetic pollution and affect human health, how to reduce electromagnetic radiation has become a technical problem that needs to be solved urgently.

[0005] Summary of the Invention

[0006] In order to solve the above technical problems, the present application provides a method, device and storage medium for adjusting the transmission power, which aims to reduce the electromagnetic wave absorption ratio by adjusting the transmission power throughout the entire business cycle according to the current business scenario, thereby achieving the effect of reducing electromagnetic radiation.

[0007] In the first aspect, the present application provides a method for adjusting transmit power. The method is applied to an electronic device, comprising: identifying the current service as a first service, the first service being an enhanced mobile broadband and / or high-reliability, low-latency communication service; during the operation of the first service, obtaining first channel state information of uplink data transmitted on a first channel corresponding to the first service according to a set period; determining, based on the first channel state information, a first transmit power supported by the first channel in the current period; determining, based on the first channel state information, a power backoff value of the first channel in the current period; determining, based on the first transmit power, the power backoff value, and the transmit power limit value, a first target transmit power, the transmit power limit value being determined based on the electromagnetic wave absorption ratio limit value of the area where the electronic device is located; transmitting a signal in the first channel at the first target transmit power within the current period.

[0008] Exemplarily, the first service includes, for example, the voice call service, audio and video call / conference service, live broadcast service, game service, etc. mentioned in the following embodiments.

[0009] Exemplarily, the first channel state information is, for example, the channel state information used to measure the condition of the channel when transmitting uplink data in the following embodiments. In one possible scenario, the channel state information includes but is not limited to the communication signal and interference signal strength in the channel.

[0010] Exemplarily, a period is set, such as the period for transmitting a signal on the channel as described in the following embodiments.

[0011] Exemplarily, the transmit power limit value is, for example, pLimit mentioned in the following embodiments.

[0012] Illustratively, the electromagnetic wave absorption ratio limit value is, for example, the SAR limit value mentioned in the following embodiments.

[0013] In this way, by identifying whether the current service scenario is the first service of enhanced mobile bandwidth and / or high-reliability and low-latency communication, and then when it is determined that the current service is the first service, the first transmission power of the first channel corresponding to the first service in the current cycle and the power backoff value corresponding to the first channel in the cycle are periodically evaluated during the entire operation process of the first service, and then the first transmission power is dynamically adjusted according to the first transmission power, the power backoff value, and the transmission power limit value corresponding to the current area of ​​the electronic device to obtain the first target transmission power suitable for the cycle, and finally the signal is transmitted in the first channel with the first target transmission power, so that the entire operation process of the first service can not only transmit signals with appropriate transmission power to ensure communication quality, but also ensure that users are in a safe electromagnetic radiation range.

[0014] According to the first aspect, based on the first channel state information, the power backoff value of the first channel in the current period is determined, including: based on the first channel state information, determining the uplink scheduling rate of the first channel in the current period; based on the uplink scheduling rate, determining the uplink proportion of the first channel in the current period; based on the uplink proportion, determining the power backoff value of the first channel in the current period.

[0015] By determining the power value that the first channel needs to back off within the period based on the first channel status information within the current evaluation period, it is ensured that on the basis of the first transmission power, the first target transmission power obtained by backing off the power back-off value can always be less than the transmission power limit value, thereby ensuring that the electromagnetic radiation generated when the electronic device transmits a signal with the adjusted first target transmission power is within a safe range, thereby ensuring user safety.

[0016] According to the first aspect, or any implementation method of the first aspect above, the first target transmit power is determined based on the first transmit power, the power backoff value and the transmit power limit value, including: when the first transmit power is greater than the transmit power limit value, controlling the first transmit power, backing off the power backoff value, and obtaining the first target transmit power; wherein the first target transmit power is less than the transmit power limit value.

[0017] Therefore, when the first transmission power supported by the first channel determined in the current cycle is greater than the transmission power limit value, the first transmission power is controlled to fall back to the power fallback value determined according to the first channel state information. This can not only ensure that the user is in a safe electromagnetic radiation range, but also avoid falling back the first transmission power to the determined power fallback value in each cycle, thereby ensuring communication quality.

[0018] According to the first aspect, or any implementation method of the first aspect above, the first transmit power is controlled, the power backoff value is backed off, and the first target transmit power is obtained, including: determining the transmit power adjustment step corresponding to the current period according to the power backoff value, the transmit power adjustment step is less than the power backoff value; according to the transmit power adjustment step, within the current period, the first transmit power is controlled to gradually backoff until the power backoff value is backed off; and the first transmit power after the power backoff value is backed off is used as the first target transmit power.

[0019] Therefore, by determining a transmission power adjustment step that is smaller than the power backoff value, that is, a small step, and then controlling the first transmission power to gradually back off according to the small step until the power backoff value is returned, the electromagnetic radiation corresponding to the first transmission power transmission signal is controlled to a safe range. At the same time, the sudden deterioration of the user experience can be avoided, making the user experience change process smooth.

[0020] According to the first aspect, or any implementation of the first aspect above, determining the transmit power adjustment step corresponding to the current period according to the power backoff value includes: determining the transmit power adjustment step according to the power backoff value and the duration of the current period.

[0021] Exemplarily, the transmit power adjustment step size is determined based on the power backoff value and the duration of the current cycle, for example, by taking the average per unit time based on the power backoff value and the duration of the current cycle. In this way, when adjusting the transmit power based on the transmit power adjustment step size, the transmit power can be uniformly reduced, resulting in a smoother user experience.

[0022] According to the first aspect, or any implementation method of the first aspect above, determining the first target transmit power based on the first transmit power, the power backoff value and the transmit power limit value, also includes: when the first transmit power is not greater than the transmit power limit value, using the first transmit power as the first target transmit power.

[0023] Therefore, when the first transmit power is not greater than the transmit power limit value, even if the power backoff value is determined based on the first channel state information, the first transmit power may not be adjusted, but the signal may be directly transmitted at the first transmit power. In this way, while ensuring that the user is within a safe electromagnetic radiation range, the electronic device can currently have a higher transmit power, thereby ensuring communication quality and further ensuring the user experience.

[0024] According to the first aspect, or any implementation method of the first aspect above, identifying the current service as the first service includes: obtaining the data stream currently generated by the electronic device; performing service identification on the data stream to determine the application providing the data stream; determining the network characteristics of the service corresponding to the application based on the attributes of the application; when the network characteristics of the service meet the network characteristics of enhanced mobile broadband and / or high-reliability and low-latency communication, determining that the current service is the first service.

[0025] Exemplary network characteristics of enhanced mobile bandwidth include, for example, greater network throughput, higher peak rate, and low latency as described in the following embodiments.

[0026] Exemplary network characteristics of high-reliability and low-latency communications include, for example, high reliability and ultra-low latency as described in the following embodiments.

[0027] According to the first aspect, or any implementation method of the first aspect above, the method also includes: identifying that the current service is a second service, and the network characteristics that the second service focuses on are different from the network characteristics that the first service focuses on; during the operation of the second service, adjusting the second transmission power of the second channel corresponding to the second service by limiting the transmission power peak or limiting the transmission power within the average time; and transmitting a signal on the second channel according to the adjusted second transmission power.

[0028] In this way, for services (second services) with lower network requirements than the first service, the transmission power is adjusted directly by limiting the transmission power peak or limiting the transmission power within the average time, ensuring that the electromagnetic radiation can always be within a safe electromagnetic radiation range and ensuring user safety.

[0029] According to the first aspect, or any implementation method of the first aspect above, adjusting the second transmission power of the second channel corresponding to the second service includes: adjusting the second transmission power to the set transmission power peak or the corresponding transmission power within the set average time in a one-step adjustment manner, and the set transmission power peak and the corresponding transmission power within the average time are both less than the transmission power limit value.

[0030] Therefore, through a one-step adjustment method, electromagnetic radiation can be reduced to a safe electromagnetic radiation range as quickly as possible, ensuring user safety.

[0031] According to the first aspect, or any implementation method of the first aspect above, before transmitting a signal in the first channel at the first target transmission power in the current period, the method also includes: determining whether the first channel is a physical random access channel PRACH with a wireless resource control state of a service state; when the first channel is not a PRACH in the service state, determining whether the transmission signal corresponding to the first service is a channel sounding reference signal SRS; when the transmission signal corresponding to the first service is not SRS, determining whether the first channel is a physical uplink control channel PUCCH; when the first channel is PUCCH, determining whether there is a scheduling request SR signal in the PUCCH; when there is no SR signal in the PUCCH, determining whether there is a hybrid automatic repeat request HARQ signal in the PUCCH; when there is no HARQ signal in the PUCCH, determining whether there is second channel state information in the PUCCH for measuring the transmission of downlink data; when there is no second channel state information in the PUCCH, executing the step of transmitting a signal in the first channel at the first target transmission power in the current period.

[0032] Therefore, before transmitting a signal with the first target transmission power, it is further determined whether the first channel is in a specific state or is an important channel containing a specific signal, such as PRACH, PUCCH, etc., and then when it is determined that the first channel is not a specific important channel, the signal is transmitted in the first channel with the first target transmission power within the current cycle, thereby avoiding the transmission power of these important channels from being adjusted, thereby ensuring that the services of the important channels can proceed normally.

[0033] According to the first aspect, or any implementation of the first aspect above, the method further includes: when the first channel is a PRACH in a traffic state, transmitting a signal in the first channel at a first transmission power within a current period.

[0034] Therefore, when the first channel is a specific important channel, information is directly transmitted using the first transmission power currently supported by the first channel, thereby ensuring normal operation of the service corresponding to the channel.

[0035] According to the first aspect, or any implementation of the first aspect above, the method further includes: when the transmission signal corresponding to the first service is SRS, transmitting the signal in the first channel with the first transmission power within the current period.

[0036] Therefore, when the first channel is a specific important channel, information is directly transmitted using the first transmission power currently supported by the first channel, thereby ensuring normal operation of the service corresponding to the channel.

[0037] According to the first aspect, or any implementation of the first aspect above, the method further includes: when there is an SR signal in the PUCCH, transmitting a signal in the first channel with the first transmission power within the current period.

[0038] Therefore, when the first channel is a specific important channel, information is directly transmitted using the first transmission power currently supported by the first channel, thereby ensuring normal operation of the service corresponding to the channel.

[0039] According to the first aspect, or any implementation of the first aspect above, the method further includes: when there is a HARQ signal in the PUCCH, transmitting the signal in the first channel with the first transmission power within the current cycle.

[0040] Therefore, when the first channel is a specific important channel, information is directly transmitted using the first transmission power currently supported by the first channel, thereby ensuring normal operation of the service corresponding to the channel.

[0041] According to the first aspect, or any implementation of the first aspect above, the method further includes: when there is second channel state information in the PUCCH, transmitting a signal in the first channel at the first transmission power within the current period.

[0042] Therefore, when the first channel is a specific important channel, information is directly transmitted using the first transmission power currently supported by the first channel, thereby ensuring normal operation of the service corresponding to the channel.

[0043] In the second aspect, the present application provides a method for adjusting the transmission power. The method is applied to an electronic device, including: in the process of the electronic device executing a service, obtaining the channel state information of the uplink data transmitted on the channel corresponding to the service currently executed by the electronic device according to a set period; determining the transmission power supported by the channel in the current period according to the channel state information; determining the power backoff value of the channel in the current period according to the channel state information; adjusting the transmission power according to the transmission power, the power backoff value and the transmission power limit value, and the transmission power limit value is determined according to the electromagnetic wave absorption ratio limit value of the area where the electronic device is located; determining whether the channel is a physical random access channel PRACH with a wireless resource control state of a service state; when the channel is not a PRACH in a service state, determining whether the transmission signal corresponding to the service is a channel sounding reference signal SRS; When the transmission signal corresponding to the service is not SRS, determine whether the channel is the physical uplink control channel PUCCH; when the channel is PUCCH, determine whether there is a scheduling request SR signal in the PUCCH; when there is no SR signal in the PUCCH, determine whether there is a hybrid automatic repeat request HARQ signal in the PUCCH; when there is no HARQ signal in the PUCCH, determine whether there is channel state information for measuring the transmission of downlink data in the PUCCH; when there is no channel state information for measuring the transmission of downlink data in the PUCCH, transmit the signal in the channel with the adjusted transmission power within the current period; otherwise, transmit the signal in the channel directly with the transmission power supported by the channel in the current period within the current period.

[0044] In this way, regardless of the specific type of service currently executed by the electronic device, during the entire operation process of the current service, the transmission power of the channel corresponding to the service in the current period and the power backoff value corresponding to the channel in the period are periodically evaluated. Then, according to the transmission power, the power backoff value, and the transmission power limit value corresponding to the current area of ​​the electronic device, the transmission power is dynamically adjusted, thereby realizing dynamic adjustment of all services that can be executed by the electronic device.

[0045] In addition, before transmitting signals on the channel according to the adjusted transmit power, the system further determines whether the channel is a PRACH in service state and whether it is a channel that does not transmit SR signals, HARQ signals, or channel state information used to measure downlink data transmission. Only when these conditions are met will the system transmit signals on the channel according to the adjusted transmit power. Otherwise, the system directly transmits signals on the channel at the transmit power supported by the current channel, i.e., without adjusting the transmit power. This ensures that users are within a safe electromagnetic radiation range while also taking into account the transmit power requirements of the most important channels, thus ensuring the communication quality of important channels.

[0046] In a third aspect, the present application provides an electronic device. The electronic device includes: a memory and a processor, the memory and the processor being coupled; the memory storing program instructions, which, when executed by the processor, cause the electronic device to execute the instructions of the method in the first aspect or any possible implementation of the first aspect; or to execute the instructions of the method in the implementation of the second aspect.

[0047] The implementation of the third aspect corresponds to the first aspect and any one of the implementations of the first aspect, or corresponds to the implementation of the second aspect. The technical effects corresponding to the implementation of the third aspect can be found in the technical effects corresponding to the first aspect and any one of the implementations of the first aspect, as well as the technical effects corresponding to the implementation of the second aspect, and are not further described here.

[0048] In a fourth aspect, the present application provides a computer-readable medium for storing a computer program, which includes instructions for executing the method in the first aspect or any possible implementation of the first aspect; or instructions for executing the method in the implementation of the second aspect.

[0049] The implementation of the fourth aspect corresponds to the first aspect and any one of the implementations of the first aspect, or corresponds to the implementation of the second aspect. The technical effects corresponding to the implementation of the fourth aspect can refer to the technical effects corresponding to the first aspect and any one of the implementations of the first aspect, as well as the technical effects corresponding to the implementation of the second aspect, and are not further described here.

[0050] In a fifth aspect, the present application provides a computer program comprising instructions for executing the method in the first aspect or any possible implementation of the first aspect; or instructions for executing the method in the implementation of the second aspect.

[0051] The implementation of the fifth aspect corresponds to the first aspect and any one of the implementations of the first aspect, or corresponds to the implementation of the second aspect. The technical effects corresponding to the implementation of the fifth aspect can be found in the technical effects corresponding to the first aspect and any one of the implementations of the first aspect, as well as the technical effects corresponding to the implementation of the second aspect, and are not further described here.

[0052] In a sixth aspect, the present application provides a chip system comprising a processor, the processor being used to support an electronic device in implementing a method as in the first aspect or any possible implementation of the first aspect, or a method as in a possible implementation of the second aspect.

[0053] According to a sixth aspect, the processor includes an application processor and a modem, namely, the AP and Modem mentioned in the following embodiments.

[0054] The sixth aspect and any implementation of the sixth aspect respectively correspond to the first aspect and any implementation of the first aspect; or correspond to the implementation of the second aspect. The technical effects corresponding to the sixth aspect and any implementation of the sixth aspect can refer to the technical effects corresponding to the first aspect and any implementation of the first aspect, and the technical effects corresponding to the implementation of the second aspect, and are not further described here. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] FIG1 is a schematic diagram showing the distribution of SAR in a business scenario;

[0056] FIG2A is a schematic diagram showing a maximum transmit power ratio value of a transmit signal in the N1 frequency band in a scenario where the transmit power is adjusted by limiting the transmit power peak value;

[0057] FIG2B is a schematic diagram showing a maximum transmit power ratio value of the SRS in the N41 frequency band in a scenario where the transmit power is adjusted by limiting the transmit power peak value;

[0058] FIG3 is a schematic diagram illustrating an exemplary communication network architecture;

[0059] FIG4 is a schematic diagram showing an exemplary hardware structure of an electronic device;

[0060] FIG5 is a schematic diagram illustrating a software structure of an electronic device;

[0061] FIG6 is a schematic diagram illustrating a flow chart of a method for adjusting transmit power according to an embodiment of the present application;

[0062] FIG7 is a schematic diagram illustrating a maximum transmit power ratio value of a transmit signal in the N1 frequency band in a scenario where the transmit power is adjusted using the transmit power adjustment method provided in an embodiment of the present application;

[0063] FIG8 is a schematic flow chart illustrating another method for adjusting transmit power according to an embodiment of the present application;

[0064] FIG9 is a flowchart illustrating another method for adjusting transmit power provided in an embodiment of the present application. DETAILED DESCRIPTION

[0065] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0066] The term "and / or" in this article is merely a description of the association relationship between associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone.

[0067] In the description and claims of the embodiments of this application, the terms "first" and "second" are used to distinguish different objects, rather than to describe a specific order of objects. For example, the terms "first target object" and "second target object" are used to distinguish different objects, rather than to describe a specific order of objects.

[0068] 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 interpreted 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.

[0069] In the description of the embodiments of this application, unless otherwise specified, "multiple" means two or more. For example, "multiple processing units" means two or more processing units; "multiple systems" means two or more systems.

[0070] With the development of communication technology and terminal technology, electronic devices can realize more and more functions. While electronic devices bring convenience to users' daily life and work, they also expose users to more electromagnetic radiation.

[0071] Electromagnetic radiation can cause electromagnetic pollution and affect human health. Currently, some possible implementations of electromagnetic radiation reduction include electromagnetic shielding measures to reduce electromagnetic radiation energy and thereby improve the electromagnetic environment. However, since electromagnetic shielding measures require consideration of materials and may even require the addition of additional components to electronic devices, implementation costs are relatively high. Therefore, other possible implementations involve various technical measures during product design to reduce electromagnetic radiation energy at the source.

[0072] Regarding the method of reducing the electromagnetic radiation energy from the source, for example, it can be achieved by adjusting the electromagnetic wave absorption rate (Specific Absorption Rate, SAR).

[0073] It's important to note that SAR is a standard measurement used to measure the absorption of electromagnetic energy generated by mobile phones and other electronic devices by human tissue. The unit of SAR is W / Kg (watts per kilogram). A higher SAR value indicates a greater impact of electromagnetic radiation on the user; a lower SAR value indicates a smaller impact.

[0074] In addition, it should be noted that mobile phones, tablets and other electronic devices need to meet local laws, regulations and standards when entering the market. For example, products entering the Chinese market need to undergo China Compulsory Certification (CCC), products entering the European market need to undergo Conformite Europeenne (CE) certification, and products entering the US market need to undergo Federal Communications Commission (FCC) certification. Different countries and regions have formulated corresponding mandatory management requirements and set SAR limit values. Among them, the SAR limit value refers to the maximum amount of electromagnetic wave radiation (electromagnetic energy) allowed to be absorbed per kilogram of human tissue within 6 minutes.

[0075] SAR limits vary across different countries and regions due to different regulatory requirements (measurement standards). For example, the US uses a mass unit of 1 gram (g), with a SAR limit of 1.6W / kg. The EU and China use a mass unit of 10g, with a SAR limit of 2.0W / kg. This means that when electronic devices enter different markets, their actual SAR values ​​must not exceed the SAR limits established in each region.

[0076] For example, in a scenario where a user holds a mobile phone, an electronic device, close to his head, when the electronic device uses a transmission power of P and transmits a signal through the antenna of the electronic device (such as antenna 1 shown in Figure 4), the SAR distribution diagram of the test results may be as shown in Figure 1.

[0077] For example, darker areas have higher SAR and therefore greater electromagnetic radiation. In the SAR distribution diagram shown in Figure 1, Area 1 has the highest SAR. Therefore, as long as the SAR in Area 1 does not exceed the SAR limit for that region, the electronic device's antenna, using a transmit power of P, can transmit signals in compliance with the region's SAR regulations in the scenario shown in Figure 1 (where the user holds the mobile phone close to their head).

[0078] Based on this, we can know that the way to reduce electromagnetic radiation energy from the source can be achieved by reducing the specific absorption rate (SAR). The reduction of SAR can be achieved by adjusting the transmit power of the antenna. That is, by adjusting the transmit function of the antenna, the electromagnetic radiation of electronic devices can be reduced. However, reducing the transmit power of the antenna may lead to a decrease in communication quality. At present, in order to improve the uplink coverage and speed of the network, operators have put forward standardized requirements for high-power (high transmit power) electronic devices in multiple frequency bands. Therefore, when the transmit power of electronic devices increases, if the uplink and downlink resource ratio is not appropriate, it will cause the SAR to fail to meet the regional requirements, that is, the SAR cannot be reduced, and then the electromagnetic radiation cannot be reduced, which affects human health.

[0079] Therefore, how to reasonably adjust the antenna's transmission power to ensure that users are within a safe electromagnetic radiation range without affecting the user experience is an urgent problem that needs to be solved.

[0080] Currently, in some possible implementations, the uplink transmit power of electronic devices is controlled by limiting the peak transmit power (Peak Tx Power) or limiting the transmit power within the average time (time average power), thereby reducing SAR and keeping users within a safe electromagnetic radiation range.

[0081] As shown in Figure 2A, during the time range from 07:35.3 to 08:30.3, if the maximum transmit power (PLimit) corresponding to the SAR regulatory requirement for the current usage scenario is 16, based on the above-mentioned restriction method, to ensure that the transmit power is always less than PLimit, a transmit power peak value less than PLimit is set, for example, between 14 and 16, such as 15. In this case, during this time range, the electronic device can only transmit signals at a transmit power of 15.

[0082] Continuing to refer to Figure 2A, for example, if the regulatory requirements for SAR corresponding to the usage scenario change after the moment "08:30.3" to the moment "09:30.1", in order to meet the regulatory requirements for SAR corresponding to the scenario, the peak transmission power needs to be adjusted from 15 to 10. Specifically, the electronic device directly changes from transmitting signals using a transmission power of 15 to transmitting signals using a transmission power of 10.

[0083] It should be understood that the above description is merely an example for better understanding the technical solution of this embodiment and is not intended to be the sole limitation of this embodiment. The implementation of limiting the transmit power within the averaging time is similar and will not be repeated here.

[0084] As can be seen from the above example, while this method of adjusting transmit power can reduce SAR and keep users within a safe electromagnetic radiation range, it can also cause a sudden drop in transmit power, which can lead to lags in current services on electronic devices and screen distortion, severely impacting the user experience.

[0085] Furthermore, once the transmit power peak value or transmit power limit within the averaging time set in the aforementioned transmit power adjustment method is set, it applies to all channels. This can affect the transmission of some important channels, such as those that transmit the Sounding Reference Signal (SRS) in rotation, and thus prevent the corresponding services from being completed.

[0086] As shown in Figure 2B, when the SRS at the N41 frequency needs to be transmitted in rotation at a transmission power of 15, or even higher than 15, such as 20, if the SAR regulations corresponding to the current usage scenario of the electronic device or the area in which it is located limit PLimit to 14. Based on the above restriction method, in order to ensure that the transmission power can always be less than PLimit, a transmission power peak value less than PLimit will be set, such as 10. Then, during the time period from "17:18.0" to "17:34.1", the electronic device will always transmit the SRS in rotation at a transmission power of 10, which will result in the electronic device being unable to complete the corresponding services based on the SRS, such as estimating the frequency domain information of the uplink channel and performing frequency selective scheduling; and it cannot be used to estimate the downlink channel and perform downlink beamforming.

[0087] It should be understood that the above description is merely an example for better understanding the technical solution of this embodiment and is not intended to be the sole limitation of this embodiment. The implementation of limiting the transmit power within the averaging time is similar and will not be repeated here.

[0088] In view of this, an embodiment of the present application provides a method for adjusting the transmission power. By determining the requirements of the current business scenario for communication quality, and then based on the requirements of different business scenarios for communication quality, the transmission power is periodically evaluated throughout the entire business process, and the maximum uplink transmission power is controlled in a small step size manner, thereby avoiding a sudden deterioration in user experience and making the user experience change process smoother, thereby achieving the goal of not affecting the user experience while ensuring that the user is within a safe electromagnetic radiation range.

[0089] In order to better understand the technical solutions provided by the embodiments of the present application, before describing the technical solutions of the embodiments of the present application, examples of communication systems to which the embodiments of the present application can be applied are first given.

[0090] Exemplarily, the embodiments of the present application may be applicable to but not limited to the following communication systems: Narrow Band-Internet of Things (NB-IoT) system, Wireless Local Access Network (WLAN) system, Long Term Evolution (LTE) system, Vehicle to X (V2X) wireless communication system, 5th Generation Mobile Networks or 5th Generation Wireless Systems (5G) also known as New Radio (NR) system, or communication systems after 5G, such as 6G system, Device to Device (D2D) communication system, etc.

[0091] In order to facilitate understanding of the communication network architecture of the above-mentioned communication system, the communication network architecture of the communication system to which the embodiment of the present application is applicable is described below in conjunction with Figure 3.

[0092] For example, Figure 3 takes the network service architecture of the 5G system as an example to show the interaction relationship between network functions and entities and the corresponding interfaces. The network functions and entities included in the service-based network architecture (SBA) of the 3rd Generation Partnership Project (3GPP) of the 5G system mainly include: User Equipment (UE), Access Network (AN) or Radio Access Network (RAN), User Plane Function (UPF), Data Network (DN), Access Management Function (AMF), Session Management Function (SMF), Authentication Server Function (AUSF), Policy Control Function (PCF), Application Function (AF), Network Slice Selection Function (NSSF), Unified Data Management (UDM), Network Exposure Function (NEF) and Network Repository Function (NRF).

[0093] Among them, UE, AN / RAN, UPF and DN are generally referred to as user plane network functions and entities (or user plane network elements), and the other parts are generally referred to as control plane network functions and entities (or control plane network elements). Control plane network elements are defined by 3GPP to handle functions in a network. Control plane network elements have 3GPP-defined functional behaviors and 3GPP-defined interfaces. Network functions can be implemented as a network element running on dedicated hardware, or as a software instance running on dedicated hardware, or as a virtual function instantiated on a suitable platform, such as on a cloud infrastructure.

[0094] The following is a detailed introduction to the main functions of each network element.

[0095] AN / RAN: AN / RAN can be various forms of base stations, such as macro base stations, micro base stations (also known as "small stations"), distributed unit-control units (DU-CU), etc. In addition, the above-mentioned base stations can also be wireless controllers in the Cloud Radio Access Network (CRAN) scenario, or relay stations, access points, vehicle-mounted devices, wearable devices, or network devices in the future evolved Public Land Mobile Network (PLMN) network. AN / RAN can also be a Broadband Network Gateway (BNG), an aggregation switch, non-3GPP access equipment, etc. AN / RAN is mainly responsible for radio resource management on the air interface side, uplink and downlink data classification, Quality of Service (QoS) management, data compression and encryption, signaling processing with control plane network elements, or data forwarding with user plane function network elements. The embodiments of the present application do not limit the specific form and structure of AN / RAN. For example, in systems using different wireless access technologies, the names of devices with base station functions may be different. For example, the base station can be an Evolved Universal Terrestrial Radio Access Network (E-UTRAN) device in LTE, such as an Evolved NodeB (eNB or e-NodeB), or a Next Generation Radio Access Network (NG-RAN) device (such as gNB) in a 5G system.

[0096] UPF: Mainly responsible for packet routing and forwarding, as well as QoS processing or billing information statistics for user plane data. The transmission resources and scheduling functions that provide services to UEs in UPF are managed and controlled by SMF.

[0097] DN: A DN is a network used to transmit data. For example, a DN can be a carrier service network, an Internet access network, or a third-party service network.

[0098] AMF: Mainly responsible for processing control plane messages, such as access control, mobility management, lawful interception, access authentication / authorization, etc. Specifically, the functions of AMF are: 1) processing the access network control plane; 2) processing NAS messages, responsible for NAS encryption protection and integrity protection; 3) registration management; 4) connection management; 5) access management; 6) mobility management; 7) legal information interception; 8) providing session management messages between UE and SMF; 9) transparent transmission of routed session management (SM) messages, similar to a transparent transmission agent; 10) access authentication; 11) access authorization; 12) forwarding SMS messages (short messages) between UE and short message service function SMSF; 13) interacting with AUSF and UE to obtain UE authentication intermediate keys; 14) calculating specific keys for access network.

[0099] SMF: Mainly used for session management, UE Internet Protocol (IP) address allocation and management, selection of endpoints for manageable user plane functions, policy control and charging function interfaces, downlink data notification, etc.

[0100] PCF: Mainly used to provide UE policy rules, AM policy rules and SM policy rule-related parameters to UE, AMF or SMF respectively, manage user subscription information, connect to UDM to access subscription user information related to policy decisions, etc.

[0101] NRF: Mainly used to provide internal / external addressing functions, receive query requests from other network elements for a certain type of network element and return information about related network elements.

[0102] AUSF: Mainly responsible for network security, used to generate keys, implement two-way authentication for UE, and support a unified authentication framework.

[0103] AF: Used to provide services, mainly for: 1) application impact on business routing; 2) exposure of access network capabilities; 3) interaction with the policy framework for policy management.

[0104] NSSF: Mainly used for the selection and management of Network Slice Instances (NSI), determining the mapping between allowed network slice information and used network slice information, and determining the mapping between configured network slice information and subscribed network slice information.

[0105] NEF: It is the interface network element for bidirectional information exchange between the network and external entities. It is also the logical unit for internal information distribution and aggregation. It mainly includes three capabilities: monitoring capability, provisioning capability, and policy / billing capability.

[0106] UDM: It consists of two parts, one is called application front end (FE) and the other is called user data repository (UDR).

[0107] Among them, the data to be transmitted can be transmitted through the PDU session established between the UE and the DN (i.e., the communication bearer described in the specification), and the transmission will pass through the two network functional entities (R)AN and UPF. The UE and the (R)AN communicate with each other using a certain air interface technology. N1 is the interface between the UE and the AMF, N2 is the interface between the (R)AN and the AMF, N3 is the interface between the (R)AN and the UPF, N4 is the interface between the SMF and the UPF, and N6 is the interface between the UPF and the DN; Namf is the service-based interface presented by the AMF, Nsmf is the service-based interface presented by the SMF, Nausf is the service-based interface presented by the AUSF, Nnssf is the service-based interface presented by the NSSF, Nnef is the service-based interface presented by the NEF, Nnrf is the service-based interface presented by the NRF, Npcf is the service-based interface presented by the PCF, Nudm is the service-based interface presented by the UDM, and Naf is the service-based interface presented by the AF.

[0108] For the introduction of the functions of network elements such as UPF, DN, AUSF, NSSF, NEF, NRF and UDM, please refer to the explanations and descriptions in conventional technologies, which will not be repeated here.

[0109] In addition, it should be noted that the terms "system" and "network" used in the embodiments of the present application can be used interchangeably.

[0110] In addition, in the embodiments of the present application, the UE may be a desktop device, laptop device, handheld device, wearable device, smart home device, computing device, etc. with wireless connection function. For example, netbooks, tablet computers, AR / VR devices, etc., that is, the electronic devices mentioned above, are not listed one by one here.

[0111] In addition, the embodiments of the present application do not limit the specific type and structure of the UE. For the sake of convenience, the following description is based on an electronic device.

[0112] To facilitate understanding of the electronic device involved in the technical solution provided in the embodiments of the present application, the hardware structure of an electronic device is described below with reference to FIG4 .

[0113] 4 , the electronic device 100 may include a processor 110, an external memory interface 120, an internal memory 121, a universal serial bus (USB) interface 130, a charging management module 140, a power management module 141, a battery 142, an antenna 1, an antenna 2, a mobile communication module 150, a wireless communication module 160, an audio module 170, a sensor module 180, a button 190, a motor 191, an indicator 192, a camera 193, a display screen 194, and a subscriber identification module (SIM) card interface 195, etc.

[0114] Antenna 1 and antenna 2 are used to transmit and receive electromagnetic wave signals. Each antenna in electronic device 100 can be used to cover a single or multiple communication frequency bands. Different antennas can also be reused to improve antenna utilization. For example, antenna 1 can be reused as a diversity antenna for a wireless local area network. In other embodiments, the antennas can be used in conjunction with a tuning switch.

[0115] Specifically in each embodiment of the present application, the uplink transmission signal transmitted by the electronic device according to the adjusted transmission power is specifically sent through antenna 1.

[0116] Among them, the mobile communication module 150 can provide solutions for wireless communications including 2G / 3G / 4G / 5G applied on the electronic device 100. The mobile communication module 150 may include at least one filter, a switch, a power amplifier, a low noise amplifier (LNA), etc. The wireless communication module 160 can provide solutions for wireless communications including wireless local area networks (WLAN) (such as wireless fidelity (Wi-Fi) networks), Bluetooth (BT), global navigation satellite system (GNSS), frequency modulation (FM), near field communication technology (NFC), infrared technology (IR), etc. applied on the electronic device 100.

[0117] For example, in some implementations, antenna 1 of electronic device 100 may be coupled to mobile communication module 150, and antenna 2 may be coupled to wireless communication module 160. This allows electronic device 100 to communicate with a network and other devices via mobile communication technology or wireless communication technology.

[0118] 4 , illustratively, the audio module 170 of the electronic device 100 may include a speaker 170A, a receiver 170B, a microphone 170C, an earphone jack 170D, and the like.

[0119] Exemplarily, the electronic device 100 can implement audio functions such as music playback, recording, and the voice call services, audio and video services, live broadcast services, etc. mentioned in the various embodiments of this application through the speaker 170A, receiver 170B, microphone 170C, headphone interface 170D, and application processor in the audio module 170.

[0120] In addition, regarding the sensor module 180 in the electronic device 100, in some implementations, it may include: pressure sensor, gyroscope sensor, air pressure sensor, magnetic sensor, acceleration sensor, distance sensor, proximity light sensor, fingerprint sensor, temperature sensor, touch sensor, ambient light sensor, bone conduction sensor, etc., which are not listed here one by one, and this application does not impose any restrictions on this.

[0121] In addition, it should be noted that, in some implementations, the processor 110 may include one or more processing units, for example: the processor 110 may include an application processor (AP), a modem processor (Modem), a graphics processor (GPU), an image signal processor (ISP), a controller, a memory, a video codec, a digital signal processor (DSP), a baseband processor, and / or a neural-network processing unit (NPU), etc.

[0122] It is understandable that, in a specific implementation, different processing units may be independent devices or integrated into one or more processors.

[0123] It should be noted that, in practical applications, electronic device 100 can implement the technical solutions provided in various embodiments of this application through two processing units, AP 110A and Modem 110B. For example, the technical solution provided in the embodiment shown in FIG6 can be implemented through the AP (specifically, with the aid of the scene recognition module and transmit power adjustment module shown in FIG5 ); the technical solution provided in the embodiment shown in FIG8 can be implemented through the cooperation of the AP and Modem; and the technical solution provided in the embodiment shown in FIG9 can be implemented through the cooperation of the AP and Modem.

[0124] The specific implementation details of the embodiments shown in Figures 6, 8 and 9 are not described here in detail. Please refer to the description of the following embodiments for details.

[0125] Furthermore, it is also understandable that the controller, a processing unit included in the processor 110, can be the nerve center and command center of the electronic device 100. In practical applications, the controller can generate operation control signals based on instruction opcodes and timing signals to complete the control of instruction fetching and execution.

[0126] In addition, the memory in the processor 110 is mainly used to store instructions and data. In some embodiments, the memory in the processor 110 is a cache memory.

[0127] In addition, the USB interface 130 shown in FIG. 4 is an interface that complies with USB standard specifications, and specifically may be a Mini USB interface, a Micro USB interface, a USB Type C interface, or the like.

[0128] The charging management module 140 is configured to receive charging input from a charger. Furthermore, the power management module 141 shown in FIG4 is configured to connect the battery 142, the charging management module 140, and the processor 110. The power management module 141 receives input from the battery 142 and / or the charging management module 140 and provides power to the processor 110, the internal memory 121, the external memory, the display 194, the camera 193, and the wireless communication module 160. The wireless communication functionality of the electronic device 100 is implemented via antenna 1, antenna 2, the mobile communication module 150, the wireless communication module 160, the modem processor, and the baseband processor.

[0129] Furthermore, the electronic device 100 shown in FIG4 implements display functionality through a GPU, display screen 194, and an application processor. The GPU is a microprocessor for image processing that connects the display screen 194 and the application processor. The GPU is used to perform mathematical and geometric calculations for graphics rendering. The processor 110 may include one or more GPUs that execute program instructions to generate or modify display information.

[0130] The display screen 194 is specifically used to display images, videos, etc. The display screen 194 includes a display panel. In some embodiments, the electronic device 100 may include one or N display screens 194 , where N is a positive integer greater than one.

[0131] The camera 193 is used to capture still images or videos. In some embodiments, the electronic device 100 may include 1 or N cameras 193, where N is a positive integer greater than 1.

[0132] In addition, FIG4 shows that the external memory interface 120 can be used to connect an external memory card, such as a Micro SD card, to expand the storage capacity of the electronic device 100. The external memory card communicates with the processor 110 via the external memory interface 120 to implement data storage. For example, files such as music and videos can be stored on the external memory card.

[0133] 4 shows that the internal memory 121 can be used to store computer executable program codes, which include instructions. The processor 110 executes the instructions stored in the internal memory 121 to execute various functional applications and data processing of the electronic device 100.

[0134] In addition, the motor 191 shown in FIG. 4 may be, for example, a vibration motor; and the indicator 192 may be an indicator light.

[0135] In addition, the SIM card interface 195 shown in FIG. 4 can be used to connect a SIM card or a USIM card.

[0136] This concludes the introduction to the hardware structure of the electronic device 100. It should be understood that the electronic device 100 shown in FIG4 is merely an example. In a specific implementation, the electronic device 100 may have more or fewer components than shown in the figure, may combine two or more components, or may have a different component configuration. The various components shown in FIG4 may be implemented in hardware, including one or more signal processing and / or application-specific integrated circuits, software, or a combination of hardware and software.

[0137] Furthermore, it should be understood that the hardware components of the electronic device also need to run an operating system, such as Windows, Android, or iOS, etc. Furthermore, applications can be installed and run on the operating system, thereby implementing different services through different applications.

[0138] In addition, it should be understood that no matter which operating system is used, a layered architecture, an event-driven architecture, a microkernel architecture, a microservice architecture, or a cloud architecture can be adopted. For ease of explanation, the embodiment of the present application takes the Android system with a layered architecture as an example to illustrate the software structure of an electronic device, such as the electronic device 100 shown in Figure 4.

[0139] See FIG5 , which is a software structure block diagram of the electronic device 100 according to an embodiment of the present application.

[0140] As shown in Figure 5, the layered architecture of the electronic device 100 divides the software into several layers, each with a clear role and division of labor. The layers communicate with each other through software interfaces. In some implementations, the Android system is divided into five layers, from top to bottom: the application layer / application layer (Applications), the core layer / application framework layer (FWK), the runtime (Runtime) and the system library, and the hardware abstraction layer (HAL) and Linux kernel layer.

[0141] The application layer may include a series of application packages. As shown in FIG5 , the application package may include camera, game, video, live broadcast and other applications, which are not listed here one by one and are not limited in this application.

[0142] The framework layer can provide application programming interfaces (APIs) and programming frameworks for applications in the application layer. In some implementations, these programming interfaces and programming frameworks can be described as functions. As shown in Figure 5, the framework layer may include functions such as a content provider, a window manager, a scene recognition module, and a transmit power adjustment module. These functions are not listed here and are not limited in this application.

[0143] Specifically, in the technical solution provided by this application, the scene recognition module is used to identify the business scene of the current operation. The transmit power adjustment module selects a transmit power adjustment scheme suitable for the current business scene based on the business scene identified by the scene recognition module and adjusts the transmit power.

[0144] For specific details about the method for adjusting the transmit power provided in this application implemented by the scene recognition module and the transmit power adjustment module, please refer to the description of the method for adjusting the transmit power implemented on the AP side in the following embodiment, which will not be repeated here.

[0145] In addition, in actual applications, the above functional modules can also be expressed as services or frameworks, such as memory recycling control service, memory recycling control framework, etc., which is not limited in this embodiment.

[0146] In addition, it should be noted that the window manager located in the framework layer is used to manage window programs. The window manager can obtain the display screen size, determine whether there is a status bar, lock the screen, take screenshots, etc.

[0147] Furthermore, it should be noted that the content provider located in the framework layer is used to store and retrieve data and make it accessible to applications. This data may include video, images, audio, dialed and received calls, browsing history and bookmarks, phone books, etc., which are not listed here and are not limited by this application.

[0148] Continuing to refer to FIG5 , illustratively, the runtime, specifically the Android runtime (Android Runtime), may include a core library and a virtual machine, which are mainly responsible for scheduling and management of the Android system.

[0149] The core library consists of two parts: one containing the Java language's callable functions and the other containing the Android core library. The application layer and framework layer run in a virtual machine. The virtual machine executes the application and framework layer Java files as binary files. The virtual machine manages object lifecycles, stack management, thread management, security and exception management, and garbage collection.

[0150] Continuing with FIG5 , illustratively, the system library may include multiple functional modules, such as a surface manager, a media library, a three-dimensional (3D) graphics processing library (e.g., OpenGL ES), a two-dimensional (2D) graphics engine (e.g., SGL), etc.

[0151] The surface manager manages the display subsystem and provides fusion of 2D and 3D layers for multiple applications. The media library supports playback and recording of a variety of common audio and video formats, as well as static image files. It supports a variety of audio and video encoding formats, such as MPEG4, H.264, MP3, AAC, AMR, JPG, and PnG. The 3D graphics processing library implements 3D graphics drawing, image rendering, compositing, and layer processing.

[0152] In addition, it is understandable that the 2D graphics engine mentioned above is a drawing engine for 2D drawing.

[0153] Continuing to refer to FIG5 , illustratively, the HAL layer is an interface layer located between the operating system kernel (kernel layer) and the hardware circuit. Its purpose is to isolate the FWK from the kernel so that Android does not become overly dependent on the kernel, thereby allowing the development of the FWK to be carried out without considering the driver.

[0154] Continuing to refer to FIG5 , illustratively, the HAL layer may include various interfaces, such as an audio and video interface, a GPS interface, a call interface, a WiFi interface, etc., which are not listed one by one here and are not limited in this application.

[0155] 5 , illustratively, the kernel layer in the Android system is a layer between hardware and software. The kernel layer may include various processes / threads, power management, various drivers, etc.

[0156] This concludes the introduction to the software structure of the electronic device 100. It should be understood that the layers in the software structure shown in FIG5 and the components contained in each layer do not constitute a specific limitation on the electronic device 100. In other embodiments of the present application, the electronic device 100 may include more or fewer layers than shown, and each layer may include more or fewer components, and this application does not limit this.

[0157] Based on the above hardware structure and software structure, the transmission power adjustment method provided in this application is described in detail below in combination with specific embodiments.

[0158] Before explaining the transmission power adjustment method provided in the present application, it is stated that in the technical solution provided in the present application, the adjustment of the transmission power is implemented by the transmission power adjustment module in the AP, and the operation of transmitting signals in the channel according to the adjusted transmission power is transmitted by the Modem through antenna 1.

[0159] 6 , which illustrates an exemplary method for adjusting transmit power implemented on the AP side, specifically including steps 101 to 108. Step 101 is implemented by the scene recognition module shown in FIG5 , steps 102 to 105 and step 107 are implemented by the transmit power adjustment module shown in FIG5 , and steps 106 and 108 are implemented by the modem.

[0160] 101. Identify whether the current service is the primary service or the secondary service.

[0161] For example, this embodiment uses a 5G communication network as an example. As can be understood, there are three core application scenarios in 5G communication networks: eMBB, uRLLC, and mMTC. To meet these three types of 5G application scenarios, the 5G wireless network can be divided into eMBB network slices, uRLLC network slices, and mMTC network slices to process data flows for different services.

[0162] The so-called eMBB, or Enhanced Mobile Broadband, has the characteristics of greater network throughput, peak rate and low latency. In actual applications, it is mainly aimed at games, videos and other services.

[0163] uRLLC (Ultra-reliable and Low Latency Communication) focuses on high network reliability and ultra-low latency. It primarily supports services such as audio and video calls / conferences and voice calls.

[0164] The so-called mMTC, or Massive Machine Type Communication, has a huge number of connections to support the network characteristics of massive IoT devices. In practical applications, it mainly targets IoT (Internet of Things) devices.

[0165] In addition, it should be understood that the IoT devices mentioned above can be, for example, smart speakers, refrigerators, air conditioners, televisions and other smart devices that can access the 5G wireless network.

[0166] Based on the above description of the three core application scenarios, specifically in this embodiment, the first service is specifically a service in the above eMBB and / or uRLLC scenario. The second service is a service in the mMTC scenario.

[0167] For example, in some possible implementations, the first service is, for example, a voice call service, an audio and video call / conference service, a live broadcast service, a game service, etc. The second service is, for example, a smart home control service.

[0168] Regarding the identification of the first service and the second service, in some possible implementations, for example, this can be achieved by obtaining the data stream currently generated by the electronic device. The service of the data stream is then identified to determine which application the data stream originates from. After determining the application providing the data stream, the network characteristics of interest to the service corresponding to the application can be determined based on the attributes of the application. Finally, by determining the network characteristics of interest to the service, it can be determined whether the current service is the first service or the second service.

[0169] From the above description of the network characteristics of the three core applications of eMBB, uRLLC, and mMTC, it can be seen that when the first service is a service in the eMBB and / or uRLLC scenario, and the second service is a service in the mMTC scenario, the network characteristics that the first service focuses on are different from those that the second service focuses on. Specifically, the first service focuses on the network characteristics of eMBB and / or uRLLC, and the second service focuses on the network characteristics of mMTC. Based on this, after determining the network characteristics that the service corresponding to the application providing the data stream is concerned with based on the attributes of the application, by determining whether the network characteristics that the current service focuses on meet the network characteristics of eMBB and / or uRLLC or the network characteristics of mMTC, it is possible to quickly determine whether the current service is the first service or the second service.

[0170] Exemplarily, when the network characteristics concerned by the current service meet the network characteristics of eMBB and / or uRLLC, the current service is determined to be the first service.

[0171] Exemplarily, when the network characteristics concerned by the current service meet the network characteristics of mMTC, the current service is determined to be the second service.

[0172] It should be understood that the above description is merely an example listed for a better understanding of the technical solution of this embodiment, and is not intended to be the sole limitation on this embodiment.

[0173] In addition, it should be noted that the classification of service types can be carried out according to actual service requirements in practical applications, and this embodiment does not impose any limitation on this.

[0174] In addition, it should be noted that, specifically in this embodiment, a transmission power adjustment method (hereinafter referred to as adjustment method 1) is adopted for the first service, as shown in steps 102 to 105; another transmission power adjustment method (hereinafter referred to as adjustment method 2) is adopted for the second service, as shown in step 107, that is, the method of limiting the transmission power peak or limiting the transmission power within the average time described in the embodiments shown in Figures 2A and 2B.

[0175] Based on this, when it is determined that the current service is the first service, step 102 is executed. On the contrary, when it is determined that the current service is the second service, step 108 is executed.

[0176] 102. During the operation of a first service, first channel state information of uplink data transmission of a first channel corresponding to the first service is obtained according to a set period.

[0177] For ease of explanation, this embodiment refers to the channel corresponding to the first service as the first channel, and the channel corresponding to the second service as the second channel. However, in actual applications, based on different multiplexing methods, such as frequency division multiplexing, time division multiplexing, code division multiplexing, etc., the same channel can send both the transmit signal (RF signal) corresponding to the first service and the transmit signal (RF signal) corresponding to the second service. Therefore, in some possible implementations, the first channel and the second channel can be the same channel. That is, the "first" channel and the "second" channel are only used to distinguish the channels corresponding to different services and do not limit the channels themselves.

[0178] The aforementioned set period, for example, the transmission period corresponding to the first service, may also be a fixed period set according to service requirements, and this embodiment does not impose any limitation on this.

[0179] In addition, the first channel state information mentioned above is specifically channel information used to measure the condition of the first channel when the first channel transmits uplink data, which is commonly called CSI (Channel State Information).

[0180] Exemplarily, in some possible implementations, the first channel state information may include information such as communication signal strength and interference signal strength in the first channel.

[0181] It should be understood that the above description is merely an example listed for a better understanding of the technical solution of this embodiment, and is not intended to be the sole limitation on this embodiment.

[0182] 103. Determine a first transmit power supported by the first channel in a current period according to the first channel state information.

[0183] Exemplarily, when the first channel state information is the communication signal strength and interference signal strength in the first channel, the confirmation of the first transmit power is determined based on the communication signal strength and interference signal strength in the first channel.

[0184] In addition, it should be noted that the first channel state information, as well as the subsequent second channel state information and channel state information, etc., are all acquired by the modem in the electronic device and then reported to the transmit power adjustment module of the AP.

[0185] 104. Determine a power backoff value of the first channel in a current period according to the first channel state information.

[0186] For example, in some possible implementations, the uplink scheduling rate of the first channel in the current cycle can be determined based on the first channel state information. Then, the uplink proportion of the first channel in the current cycle can be determined based on the uplink scheduling rate. Finally, the power backoff value of the first channel in the current cycle can be determined based on the uplink proportion.

[0187] The so-called uplink ratio refers to the proportion of the duration of uplink information transmission resources within a time window when the base station configures transmission resources for electronic devices. A time window contains a number of units of information transmission time. The time window can be of any length, and this application does not impose specific restrictions on the length of the time window.

[0188] In addition, it should be noted that when configuring transmission resources for electronic devices, the base station may configure transmission resources for uplink information (uplink data / content) and transmission resources for downlink information.

[0189] For example, an uplink ratio of 100% means that within a time window, 100% of the time domain resources are configured as uplink information transmission resources. For another example, an uplink ratio of 50% means that within a time window, 50% of the time domain resources are configured as uplink information transmission resources.

[0190] Furthermore, it should be noted that the unit information transmission time can vary across different communication systems. For example, in the Long Term Evolution (LTE) communication system, the unit information transmission time can be a subframe. In new radio access (NR) systems, such as 5G communication systems, the unit information transmission time can be a slot, a mini-slot, or a symbol.

[0191] In addition, it should be noted that in some possible implementations, when an electronic device communicates and interacts with other electronic devices to achieve data transmission, the uplink ratio refers to the proportion of the transmission time of the electronic device in a time window. For example, an uplink ratio of 100% means that within a time window, 100% of the time domain resources are configured for sending information. For another example, an uplink ratio of 50% means that within a time window, 50% of the time domain resources are configured for sending information.

[0192] It should be understood that the above description is merely an example listed for a better understanding of the technical solution of this embodiment, and is not intended to be the sole limitation on this embodiment.

[0193] In addition, the power backoff value mentioned above refers to the power value that needs to be backed off based on the maximum transmit power supported by the current channel, such as the first channel, that is, the first transmit power mentioned above.

[0194] 105. Determine a first target transmit power according to the first transmit power, the power backoff value, and the transmit power limit value.

[0195] Illustratively, the transmission power limit value in this embodiment is specifically determined according to the electromagnetic absorption ratio limit value of the area where the electronic device is currently located, that is, the SAR limit value mentioned in the above embodiment.

[0196] Specifically in this embodiment, in order to ensure that users are within a safe electromagnetic radiation range while guaranteeing communication quality and thereby protecting the user experience, when determining the first target transmit power based on the first transmit power, the power backoff value, and the transmit power limit value, the relationship between the first transmit power and the transmit power limit value is first determined, and then a decision is made as to whether to backoff the determined power backoff value based on the first transmit power.

[0197] Specifically, when the first transmit power is greater than the transmit power limit value, the transmit power adjustment module may control the first transmit power to back off the power back-off value determined in the above manner, thereby obtaining the first target transmit power.

[0198] It should be noted that the first target transmit power obtained by backing off the power back-off value on the basis of the first transmit power is less than the transmit power limit value, thereby ensuring that the user can be within a safe electromagnetic radiation range.

[0199] Furthermore, in the process of controlling the first transmit power and backing off the aforementioned power backoff value to obtain the first target transmit power, to avoid a sudden deterioration in user experience, a transmit power adjustment step size smaller than the power backoff value can be determined based on the power backoff value. Based on this smaller transmit power adjustment step size, the first transmit power is gradually backed off within the current cycle until it reaches the power backoff value, thereby obtaining the first target transmit power.

[0200] For example, in some possible implementations, the small-step transmit power adjustment step is determined based on the power backoff value and the duration of the current cycle. That is, the transmit power adjustment step is the average power value corresponding to a unit time.

[0201] For example, compared to FIG2A , FIG7 shows an example of adjusting the first transmit power using adjustment mode 1. Within the period from 08:30.3 to 09:04.9, the transmit power can be gradually reduced from 15 to 10 in steps of 1 power each time. In this way, when adjusting the transmit power based on the transmit power adjustment step, the transmit power can be uniformly reduced, making the user experience smoother.

[0202] Furthermore, it should be noted that in some other possible implementations, when the first transmit power is not greater than the transmit power limit, the first transmit power can be directly used as the first target transmit power. That is, the first transmit power supported by the first channel in the current period is not adjusted, and the signal can be directly transmitted at the maximum transmit power (first transmit power) supported by the first channel in the current period.

[0203] Therefore, when the first transmit power is not greater than the transmit power limit value, even if the power backoff value is determined based on the first channel state information, the first transmit power may not be adjusted, but the signal may be directly transmitted at the first transmit power. In this way, while ensuring that the user is within a safe electromagnetic radiation range, the electronic device can currently have a higher transmit power, thereby ensuring communication quality and further ensuring the user experience.

[0204] 106. In the current period, transmit a signal in the first channel at the first target transmit power.

[0205] Specifically, after adjusting the first transmit power according to adjustment mode 1 and obtaining the first target transmit power, the transmit power adjustment module in the AP notifies the modem to transmit signals in the first channel at the first target transmit power in the current cycle.

[0206] 107 . During the operation of the second service, the second transmit power of the second channel corresponding to the second service is adjusted by limiting the transmit power peak value or limiting the transmit power within an average time.

[0207] It can be seen from the description of the embodiments shown in Figures 2A and 2B above that when adjusting the second transmit power of the second channel corresponding to the second service by limiting the transmit power peak value or limiting the transmit power within the average time, the second transmit power is specifically directly reduced to a pre-set transmit power peak value that is lower than the transmit power limit value, that is, the second transmit power is adjusted to the set transmit power peak value or the corresponding transmit power within the set average time in a one-step adjustment manner, and the set transmit power peak value and the corresponding transmit power within the average time are both less than the transmit power limit value.

[0208] It should be noted that the peak transmit power, for example, is obtained by backing off the corresponding power backoff value based on the currently supported transmit power. That is, this approach does not consider the relationship between the second transmit power currently supported by the second channel and the transmit power limit. Regardless of whether the second transmit power is greater than or less than the transmit power limit, the second transmit power is backed off to the determined power backoff value in a one-step adjustment based on the second transmit power.

[0209] Regarding the implementation details of adjusting the second transmission power of the second channel corresponding to the second service by limiting the transmission power peak or limiting the transmission power within the average time, the parts not shown in this embodiment can be referred to the description part of the embodiments shown in Figures 2A and 2B, and will not be repeated here.

[0210] 108. Transmit a signal on the second channel according to the adjusted second transmission power.

[0211] Therefore, by identifying whether the current service scenario is the first service of enhanced mobile bandwidth and / or high-reliability and low-latency communication, and then determining that the current service is the first service, the first transmission power of the first channel corresponding to the first service in the current cycle and the power backoff value corresponding to the first channel in the cycle are periodically evaluated during the entire operation process of the first service, and then the first transmission power is dynamically adjusted according to the first transmission power, the power backoff value, and the transmission power limit value corresponding to the current area of ​​the electronic device to obtain the first target transmission power suitable for the cycle, and finally the signal is transmitted in the first channel with the first target transmission power, so that the entire operation process of the first service can not only transmit signals with appropriate transmission power to ensure communication quality, but also ensure that users are in a safe electromagnetic radiation range.

[0212] 8 , a method for adjusting transmit power implemented by cooperation between the AP side and the Modem side is exemplified, specifically including steps 101 to 208 in the embodiment described in FIG. 6 , and steps 201 to 206 implemented in the Modem.

[0213] 101. Identify whether the current service is the primary service or the secondary service.

[0214] 102. During the operation of a first service, first channel state information of uplink data transmission of a first channel corresponding to the first service is obtained according to a set period.

[0215] 103. Determine a first transmit power supported by the first channel in a current period according to the first channel state information.

[0216] 104. Determine a power backoff value of the first channel in a current period according to the first channel state information.

[0217] 105. Determine a first target transmit power according to the first transmit power, the power backoff value, and the transmit power limit value.

[0218] For implementation details of steps 101 to 105 , please refer to the description in the embodiment shown in FIG6 , which will not be repeated here.

[0219] 201: Whether the first channel is a PRACH, and the RRC state of the PRACH is a service state.

[0220] The so-called PRACH (Physical Random Access Channel) is the access channel when an electronic device first initiates a call. After receiving the Fast Physical Access Channel (FPACH) response message, the electronic device will send a Radio Resource Control Connection Request (RRC Connection Request) message on the PRACH channel according to the information indicated by the base station to complete the RRC connection establishment operation.

[0221] In addition, it should be noted that in the NR communication system, RRC has three states: IDLE (idle state), INACTIVE (inactive state), and ACTIVE / CONNECTED (service state).

[0222] Among them, when the PRACH is in IDLE, the RRC link between the electronic device and the wireless network is released. Therefore, the first target transmission power obtained by adjusting the above adjustment method 1 and transmitting signals in this channel will not affect the business. When the PRACH is in INACTIVE, the RRC link between the electronic device and the wireless network is suspended / terminated. Therefore, the first target transmission power obtained by adjusting the above adjustment method 1 and transmitting signals in this channel will not affect the business. However, when the PRACH is ACTIVE / CONNECTED, the RRC link between the electronic device and the wireless network is available. Therefore, in this case, when the PRACH is used as the network channel of the electronic device, the transmission power of the channel cannot be limited.

[0223] Based on this, when the first channel is PRACH and the RRC state of PRACH is service state, step 206 will be executed; otherwise, step 202 can be executed to continue to determine whether the first service is an important service, that is, a service for which the transmit power cannot be reduced.

[0224] 202: Whether the transmitted signal corresponding to the first service is SRS.

[0225] The so-called SRS, or Sounding Reference Signal, is an uplink reference signal sent by an electronic device for recording, which reflects the quality of the channel. Specifically, the SRS transmitted by the antenna in turn will affect the modulation and coding scheme (MCS) and multiple in multiple out (MIMO) weights of the uplink resources, as well as the MCS and MIMO weights of the downlink resources. The transmission rate is achieved based on the index value of the MCS. Therefore, MCS uses the factors that affect the communication rate as columns of the table and the MCS index as rows to form a rate table. Therefore, each MCS index actually corresponds to the physical transmission rate under a set of parameters.

[0226] It's also important to note that the SRS signals involved in carrier switching (CS) and antenna switching (AS) are likely to be reused. Therefore, limiting the maximum SRS transmit power will also affect the downlink rate. Specifically, limiting the SRS output power (transmit power) destroys channel reciprocity, creating a mismatch between the output power and the corresponding receiving capability. Furthermore, limiting the SRS output power reduces the signal-to-noise ratio (SNR) of the channel through which the base station receives the SRS, impacting downlink beamforming performance and, for users, reducing download speeds.

[0227] Therefore, if the transmission signal corresponding to the first service is an SRS, or if an SRS exists in the first channel, the transmit power of the first channel will not be restricted, and the signal can be directly transmitted at the maximum transmit power supported by the first channel in the current cycle, that is, the first transmit power, and the operation of step 206 is executed. Otherwise, step 203 can be executed to continue to determine whether there are other signals in the current channel whose transmit power cannot be restricted.

[0228] 203: Whether the first channel is a PUCCH and whether there is an SR signal in the PUCCH.

[0229] Specifically, if the first channel is the PUCCH and there is an SR signal in the PUCCH, execute step 206; otherwise, execute step 204.

[0230] 204: Whether there is a HARQ signal in the PUCCH.

[0231] Specifically, if the first channel is the PUCCH and there is an SR signal in the PUCCH, execute step 206; otherwise, execute step 205.

[0232] 205. Whether there is second channel state information in the PUCCH.

[0233] Specifically, if the first channel is the PUCCH and there is an SR signal in the PUCCH, execute step 206; otherwise, execute step 106.

[0234] Specifically, if the first channel is the PUCCH and there is an SR signal in the PUCCH, execute step 206; otherwise, execute step 204.

[0235] It should be noted that for downlink data transmitted in PUCCH (Physical Uplink Control Channel), when it transmits a scheduling request (SR) signal, a hybrid automatic repeat request (HARQ) signal, the second channel state information used to measure the first channel condition when the first channel transmits downlink data, an ACK signal, and a NACK signal, if the public transmission of PUCCH is restricted, it will affect the uplink and downlink resource scheduling and the retransmission of downlink data.

[0236] The ACK (Acknowledgement) signal is a positive feedback signal, which is a response signal made by the receiver when it replies to the sender after receiving the data. Specifically in this embodiment, for example, it is a response signal made by the base station to the electronic device.

[0237] NACK (Negative Acknowledgement) is a negative feedback signal, in which the receiver notifies the sender only when it has not received the data. Specifically, in this embodiment, it is a response signal sent by the base station to the electronic device when the base station has not received the data sent by the electronic device.

[0238] Among them, the second channel state information CSI used to measure the first channel condition when the first channel transmits downlink data may include channel quality indicator (CQI), rank indication (RI), precoding matrix indication (PMI), RS resource indicator (CRI) and other information.

[0239] It should be understood that the above description is merely an example listed for a better understanding of the technical solution of this embodiment, and is not intended to be the sole limitation on this embodiment.

[0240] Therefore, for scenarios containing any of the above signals, the transmit power of the first channel will not be limited, and the signal can be directly transmitted at the maximum transmit power supported by the first channel in the current period, that is, the first transmit power, that is, the operation of step 206 is performed.

[0241] Otherwise, when it is determined that the first channel does not include any of the above signals, step 106 may be executed.

[0242] 106. In the current period, transmit a signal in the first channel at the first target transmit power.

[0243] For details on the implementation of step 106, please refer to the description of the embodiment shown in FIG6 , which will not be repeated here.

[0244] 206. In the current cycle, transmit a signal in the first channel at the first transmit power.

[0245] 107 . During the operation of the second service, the second transmit power of the second channel corresponding to the second service is adjusted by limiting the transmit power peak value or limiting the transmit power within an average time.

[0246] 108. Transmit a signal on the second channel according to the adjusted second transmission power.

[0247] For details on the implementation of step 107 and step 108, please refer to the description in the embodiment shown in FIG6 , which will not be repeated here.

[0248] Thus, before transmitting a signal at the first target transmit power, the system further determines whether the first channel is in a specific state or is an important channel containing a specific signal, such as a PRACH or PUCCH. Only when it is determined that the first channel is not a specific important channel, will the system transmit a signal on the first channel at the first target transmit power within the current cycle. This prevents the transmit power of these important channels from being adjusted, thereby ensuring that services on the important channels can proceed normally. When the first channel is a specific important channel, information is directly transmitted at the first transmit power currently supported by the first channel, thereby ensuring that services corresponding to the channel can proceed normally.

[0249] 9 , a method for adjusting transmit power by cooperation between the AP and the Modem is shown, specifically including steps 301 to 311. Steps 301 to 304 are implemented by the transmit power adjustment module on the AP side, and steps 305 to 311 are implemented in the Modem.

[0250] Specifically in this embodiment, when adjusting the transmit power, regardless of the specific type of the current service, the adjustment method 1 described above is uniformly used. Therefore, for specific implementation details not shown in this embodiment, please refer to the above embodiment and will not be repeated here. Specifically, the specific implementation details of steps 301 to 304 in this embodiment can be referred to steps 102 to 105 in the above embodiment; the specific implementation details of steps 305 to 309 can be referred to steps 201 to 205 in the above embodiment; the specific implementation details of step 310 can be referred to step 106 in the above embodiment; and the specific implementation details of step 311 can be referred to step 206 in the above embodiment.

[0251] 301 , when an electronic device is executing a service, obtaining, according to a set period, channel state information of uplink data transmission of a channel corresponding to a service currently executed by the electronic device.

[0252] 302. Determine the transmit power supported by the channel in the current period according to the channel state information.

[0253] 303. Determine a power backoff value of the channel in the current period according to the channel state information.

[0254] 304. Adjust the transmit power according to the transmit power, the power backoff value, and the transmit power limit value.

[0255] 305: Whether the channel is PRACH, and the RRC state of PRACH is service state.

[0256] 306: Whether the transmission signal corresponding to the service is SRS.

[0257] 307: Whether the channel is PUCCH and whether there is an SR signal in the PUCCH.

[0258] 308: Whether there is a HARQ signal in the PUCCH.

[0259] 309 , whether there is channel state information in the PUCCH for measuring downlink data transmission.

[0260] 310 , in the current cycle, transmit a signal in the channel with the transmit power adjusted in step 304 .

[0261] 311 , in the current cycle, transmit a signal in the channel at the transmit power determined in step 302 .

[0262] Therefore, regardless of the specific type of service currently executed by the electronic device, during the entire operation process of the current service, the transmission power of the channel corresponding to the service in the current period and the power backoff value corresponding to the channel in the period are periodically evaluated. Then, based on the transmission power, the power backoff value, and the transmission power limit value corresponding to the current area of ​​the electronic device, the transmission power is dynamically adjusted, thereby realizing dynamic adjustment of all services that can be executed by the electronic device.

[0263] In addition, before transmitting signals on the channel according to the adjusted transmit power, the system further determines whether the channel is a PRACH in service state and whether it is a channel that does not transmit SR signals, HARQ signals, or channel state information used to measure downlink data transmission. Only when these conditions are met will the system transmit signals on the channel according to the adjusted transmit power. Otherwise, the system directly transmits signals on the channel at the transmit power supported by the current channel, i.e., without adjusting the transmit power. This ensures that users are within a safe electromagnetic radiation range while also taking into account the transmit power requirements of the most important channels, thus ensuring the communication quality of important channels.

[0264] In addition, it is understandable that, in order to implement the above functions, the electronic device includes hardware and / or software modules corresponding to the execution of each function. 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. Those skilled in the art can use different methods to implement the described functions for each specific application in combination with the embodiments, but such implementation should not be considered to be beyond the scope of this application.

[0265] In addition, it should be noted that the transmit power adjustment methods provided in the above embodiments, implemented by electronic devices in actual application scenarios, can also be performed by a chip system included in the electronic device, wherein the chip system may include a processor. The chip system can be coupled to a memory so that when the chip system is running, it calls a computer program stored in the memory to implement the steps performed by the above electronic device. The processor in the chip system can be an application processor or a processor other than an application processor.

[0266] In addition, an embodiment of the present application also provides a computer-readable storage medium, which stores computer instructions. When the computer instructions are executed on an electronic device, the electronic device executes the above-mentioned related method steps to implement the transmission power adjustment method in the above-mentioned embodiment.

[0267] In addition, an embodiment of the present application further provides a computer program product. When the computer program product is run on an electronic device, the electronic device executes the above-mentioned related steps to implement the method for adjusting the transmission power in the above-mentioned embodiment.

[0268] In addition, an embodiment of the present application also provides a chip (which may also be a component or module), which may include one or more processing circuits and one or more transceiver pins; wherein the transceiver pins and the processing circuit communicate with each other through an internal connection path, and the processing circuit executes the above-mentioned related method steps to implement the transmission power adjustment method in the above-mentioned embodiment to control the receiving pin to receive the signal, so as to control the transmitting pin to send the signal.

[0269] In addition, it can be seen from the above description that the electronic device, computer-readable storage medium, computer program product or chip provided in the embodiments of the present application are all used to execute the corresponding methods provided above. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects in the corresponding methods provided above, and will not be repeated here.

[0270] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for adjusting transmission power, characterized in that: Used in electronic equipment, including: Identify that a current service is a first service, where the first service is an enhanced mobile broadband and / or a high-reliability and low-latency communication service; During the operation of the first service, first channel state information of uplink data transmission of a first channel corresponding to the first service is obtained according to a set period; Determining, according to the first channel state information, a first transmit power supported by the first channel in a current period; Determining a power backoff value of the first channel in a current period according to the first channel state information; Determine a first target transmit power according to the first transmit power, the power backoff value and a transmit power limit value, wherein the transmit power limit value is determined according to an electromagnetic wave absorption ratio limit value of an area where the electronic device is located; In a current period, a signal is transmitted in the first channel at the first target transmission power.

2. The method according to claim 1, characterized in that The determining, according to the first channel state information, a power backoff value of the first channel in a current period includes: Determining an uplink scheduling rate of the first channel in a current period according to the first channel state information; Determining, according to the uplink scheduling rate, an uplink proportion of the first channel in a current period; A power backoff value of the first channel in a current period is determined according to the uplink proportion.

3. The method according to claim 1, characterized in that The determining a first target transmit power according to the first transmit power, the power backoff value, and the transmit power limit value includes: When the first transmit power is greater than the transmit power limit value, controlling the first transmit power, backing off the power backoff value, and obtaining the first target transmit power; The first target transmit power is less than the transmit power limit value.

4. The method according to claim 3, characterized in that The controlling the first transmit power, backing off the power backoff value, and obtaining the first target transmit power includes: Determine a transmit power adjustment step size corresponding to a current period according to the power backoff value, wherein the transmit power adjustment step size is smaller than the power backoff value; According to the transmit power adjustment step, in the current cycle, controlling the first transmit power to be gradually backed off until the power back-off value is backed off; The first transmit power after backing off the power backoff value is used as the first target transmit power.

5. The method according to claim 4, characterized in that The determining, according to the power backoff value, a transmit power adjustment step size corresponding to the current period includes: The transmit power adjustment step size is determined according to the power backoff value and the duration of the current cycle.

6. The method according to claim 3, characterized in that The determining a first target transmit power according to the first transmit power, the power backoff value and the transmit power limit value further includes: When the first transmit power is not greater than the transmit power limit value, the first transmit power is used as the first target transmit power.

7. The method according to claim 1, characterized in that The identifying the current service as the first service includes: Acquire a data stream currently generated by the electronic device; Performing business identification on the data flow to determine the application providing the data flow; Determining network characteristics of concern to a business corresponding to the application according to the attributes of the application; When the network characteristics concerned by the service meet the network characteristics of the enhanced mobile broadband and / or the high-reliability and low-latency communication, the current service is determined to be the first service.

8. The method according to any one of claims 1 to 7, characterized in that: The method further comprises: Identify that the current service is a second service, and the network characteristics concerned by the second service are different from the network characteristics concerned by the first service; During the operation of the second service, adjusting the second transmit power of the second channel corresponding to the second service by limiting the transmit power peak value or limiting the transmit power within an average time; A signal is transmitted on the second channel according to the adjusted second transmission power.

9. The method according to claim 8, characterized in that The adjusting the second transmit power of the second channel corresponding to the second service includes: The second transmit power is adjusted to a set transmit power peak value or a corresponding transmit power within a set average time in a one-step adjustment manner, and the set transmit power peak value and the transmit power corresponding to the average time are both less than the transmit power limit value.

10. The method according to any one of claims 1 to 7, characterized in that: Before transmitting a signal in the first channel at the first target transmit power in the current cycle, the method further includes: Determining whether the first channel is a physical random access channel PRACH whose radio resource control state is a service state; When the first channel is not the PRACH of the service state, determining whether a transmission signal corresponding to the first service is a channel sounding reference signal SRS; When the transmission signal corresponding to the first service is not an SRS, determining whether the first channel is a physical uplink control channel PUCCH; When the first channel is a PUCCH, determining whether there is a scheduling request SR signal in the PUCCH; When there is no SR signal in the PUCCH, determining whether there is a hybrid automatic repeat request HARQ signal in the PUCCH; When there is no HARQ signal in the PUCCH, determining whether there is second channel state information in the PUCCH for measuring transmission of downlink data; When the second channel state information is not included in the PUCCH, the step of transmitting a signal in the first channel at the first target transmit power in the current period is performed.

11. The method according to claim 10, characterized in that The method further comprises: When the first channel is the PRACH in the traffic state, a signal is transmitted in the first channel at the first transmission power in a current period.

12. The method according to claim 10, characterized in that The method further comprises: When the transmission signal corresponding to the first service is SRS, the signal is transmitted in the first channel at the first transmission power in the current period.

13. The method according to claim 10, characterized in that The method further comprises: When there is an SR signal in the PUCCH, a signal is transmitted in the first channel at the first transmission power in a current period.

14. The method according to claim 10, characterized in that The method further comprises: When there is a HARQ signal in the PUCCH, a signal is transmitted in the first channel at the first transmission power in a current period.

15. The method according to claim 10, characterized in that The method further comprises: When the second channel state information is present in the PUCCH, a signal is transmitted in the first channel at the first transmit power in a current period.

16. A method for adjusting transmission power, characterized in that: Used in electronic equipment, including: During the process of the electronic device executing a service, acquiring, according to a set period, channel state information of uplink data transmitted on a channel corresponding to the service currently executed by the electronic device; Determining, according to the channel state information, a transmit power supported by the channel in a current period; Determining a power backoff value of the channel in a current period according to the channel state information; adjusting the transmit power according to the transmit power, the power backoff value and the transmit power limit value, wherein the transmit power limit value is determined according to the electromagnetic wave absorption ratio limit value of the area where the electronic device is located; Determining whether the channel is a physical random access channel PRACH whose radio resource control state is a service state; When the channel is not the PRACH in the service state, determining whether the transmission signal corresponding to the service is a channel sounding reference signal SRS; When the transmission signal corresponding to the service is not an SRS, determining whether the channel is a physical uplink control channel PUCCH; When the channel is a PUCCH, determining whether there is a scheduling request SR signal in the PUCCH; When there is no SR signal in the PUCCH, determining whether there is a hybrid automatic repeat request HARQ signal in the PUCCH; When there is no HARQ signal in the PUCCH, determining whether there is channel state information in the PUCCH for measuring transmission of downlink data; When there is no channel state information for measuring downlink data transmission in the PUCCH, transmitting a signal in the channel with the adjusted transmit power in a current period; Otherwise, in the current period, directly transmit the signal in the channel with the transmit power supported by the channel in the current period.

17. An electronic device, characterized in that: The electronic device includes: a memory and a processor, the memory and the processor are coupled; the memory stores program instructions, and when the program instructions are executed by the processor, the electronic device executes the transmission power adjustment method as described in any one of claims 1 to 15, or the transmission power adjustment method as described in claim 16.

18. A chip system, characterized in that: The chip system includes a processor, which is used to support the electronic device to implement the transmission power adjustment method as described in any one of claims 1 to 15, or the transmission power adjustment method as described in claim 16.

19. The chip system according to claim 18, characterized in that: The processor includes an application processor and a modem.

20. A computer-readable storage medium, characterized in that: It comprises a computer program, which, when executed on an electronic device, enables the electronic device to execute the method for adjusting the transmission power as described in any one of claims 1 to 15, or the method for adjusting the transmission power as described in claim 16.

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