CN114040490A

CN114040490A - Method and product for determining maximum transmission power of transmitter in multi-transmitter scenario

Info

Publication number: CN114040490A
Application number: CN202111243684.4A
Authority: CN
Inventors: 叶春辉; 陈琦; 刘抒民
Original assignee: Honor Device Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2021-10-25
Filing date: 2021-10-25
Publication date: 2022-02-11
Also published as: WO2023071479A1

Abstract

The application relates to the technical field of electronics, and provides a method and a product for determining the maximum transmitting power of a transmitter under a multi-transmitter scene, wherein the method comprises the following steps: acquiring the current transmitting power of a first transmitter; determining a second target gear of a second transmitter according to a first target gear corresponding to the current transmission power and a preset gear corresponding relationship, wherein the gear corresponding relationship comprises a one-to-one corresponding relationship of a plurality of first gears and a plurality of second gears, in the gear corresponding relationship, the sum of the electromagnetic radiation Specific Absorption Rate (SAR) values of any two first gears and any two second gears with corresponding relationship is less than or equal to an SAR threshold value, the first target gear is one of the plurality of first gears, and the second target gear is one of the plurality of second gears; and determining the maximum transmission power of the second transmitter according to the second target gear. The above method can improve communication quality.

Description

Method and product for determining maximum transmission power of transmitter in multi-transmitter scenario

Technical Field

The present application relates to the field of electronic technologies, and in particular, to a method and a product for determining a maximum transmit power of a transmitter in a multi-transmitter scenario.

Background

With the development of electronic information technology, electronic devices such as mobile phones have more and more functions and more systems capable of communicating simultaneously. When multiple systems communicate simultaneously, a scene that multiple antennas transmit signals simultaneously exists, and each antenna transmitting signals generates radiation to the outside, which affects the Specific Absorption Rate (SAR) value of the whole mobile phone. For the same mobile phone, in a scenario where multiple antennas transmit signals simultaneously, the SAR value of the whole mobile phone also meets the regulatory requirements.

Taking a scenario in which a main radio frequency antenna (i.e., an antenna for receiving and transmitting cellular mobile communication signals) and a wireless fidelity (Wi-Fi) antenna simultaneously transmit signals as an example, a conventional method for controlling an SAR value is to allocate the SAR value required by regulations between two systems. For example, when the SAR value of the whole mobile phone is required to be not more than 1.6mW/g (milliwatt per gram), a quota of 0.8mW/g can be allocated to each system, that is, the SAR value of the master radio frequency antenna is not more than 0.8mW/g, and the SAR value of the Wi-Fi antenna is not more than 0.8 mW/g. Even if the two systems transmit at the same time according to the maximum transmitting power allowed by the two systems, the SAR value of the whole mobile phone does not exceed 1.6mW/g required by the regulation.

However, in most cases, the master rf transmitter will not always transmit signals at the maximum transmission power, and the SAR value of the master rf antenna will not reach around 0.8mW/g, which may reduce the Wi-Fi communication quality if the maximum transmission power of the Wi-Fi transmitter is still limited as required by the SAR value of 0.8 mW/g.

Disclosure of Invention

The application provides a method, a device, a chip, an electronic device, a computer readable storage medium and a computer program product for determining the maximum transmitting power of a transmitter in a multi-transmitter scenario, which can improve communication quality.

In a first aspect, a method for determining a maximum transmission power of a transmitter in a multi-transmitter scenario is provided, including: acquiring the current transmitting power of a first transmitter; determining a second target gear of a second transmitter according to a first target gear corresponding to the current transmission power and a preset gear corresponding relationship, wherein the gear corresponding relationship comprises a one-to-one corresponding relationship of a plurality of first gears and a plurality of second gears, the plurality of first gears are a plurality of gears distributed by the transmission power of the first transmitter, the plurality of second gears are a plurality of gears distributed by the transmission power of the second transmitter, in the gear corresponding relationship, the sum of electromagnetic radiation ratio absorption rate (SAR) values of any two first gears and any two second gears with corresponding relationship is less than or equal to an SAR threshold value, the first target gear is one of the plurality of first gears, and the second target gear is one of the plurality of second gears; and determining the maximum transmission power of the second transmitter according to the second target gear.

Because the sum of the SAR values of the first target gear and the second target gear is less than or equal to the SAR threshold, the terminal device determines the second target gear according to the first target gear where the current transmission power of the first transmitter is located, and determines the maximum transmission power of the second transmitter according to the second target gear, the problem that the communication quality is reduced due to the fact that the two transmitters limit the maximum transmission power according to the respective fixed power back-off amounts can be avoided, dynamic adjustment of the maximum transmission power of the second transmitter is achieved, and the maximum transmission power of the second transmitter is improved as much as possible under the condition that the SAR value of the whole terminal device is guaranteed to meet the requirements of regulations, so that the communication quality is improved.

Optionally, the plurality of first gears are sequentially arranged according to a sequence of transmission power from low to high, the plurality of second gears are sequentially arranged according to a sequence of transmission power from low to high, the number of the plurality of first gears and the number of the plurality of second gears are both M, where M is a natural number greater than or equal to 3, and the gear correspondence relationship includes:

the first gear corresponds to the Mth second gear, the ith first gear corresponds to the M +1-i second gears, and the Mth first gear corresponds to the first second gear, wherein i is an integer larger than 1 and smaller than M.

Optionally, the obtaining the current transmission power of the first transmitter includes: determining whether the first transmitter and the second transmitter are in a simultaneous transmission state; and if so, acquiring the current transmitting power of the first transmitter.

The terminal equipment starts the process of executing the dynamic adjustment of the maximum transmitting power of the second transmitter by judging that the terminal equipment is in the simultaneous transmitting state of the plurality of transmitters, so that the resource waste caused by invalid adjustment can be avoided, and the resource utilization rate is improved.

Optionally, before determining the second target gear of the second transmitter according to the corresponding relationship between the first target gear corresponding to the current transmission power and the preset gear, the method further includes: determining a first candidate gear from the plurality of first gears, the first candidate gear being one of the plurality of first gears having a smallest SAR value; determining the first candidate gear as the first target gear when the current transmission power is less than or equal to the maximum power of the first candidate gear; determining a second candidate gear from the plurality of first gears when the current transmit power is greater than the maximum power of the first candidate gear, the second candidate gear being one of the plurality of first gears having a SAR value closest to the SAR value of the first candidate gear, and the SAR value of the second candidate gear being greater than the SAR value of the first candidate gear; determining the second candidate gear as the first target gear when the current transmission power is less than or equal to the maximum power of the second candidate gear; determining the first target gear from the remaining first gears of the plurality of first gears when the current transmission power is greater than the maximum power of the second candidate gear.

The terminal equipment compares the current transmitting power of the first transmitter with the plurality of first gears from low to high step by step to determine a first target gear, and can accurately find the first target gear where the current transmitting power is located. And then the terminal equipment determines a corresponding second target gear according to the first target gear on the basis of the gear corresponding relation, so that the reasonable maximum transmitting power of the second transmitter can be accurately determined and output on the basis of the second target gear, and the reasonability of the maximum transmitting power of the second transmitter is improved.

Optionally, the number of the first gear positions is three, and the number of the second gear positions is three.

When the number of the first gear and the second gear is three, the communication quality and the occupation of resources can be balanced, and the gear division is more reasonable.

Optionally, the difference between the SAR values of any two adjacent first gears is 0.05mW/g, and the difference between the SAR values of any two adjacent second gears is 0.05 mW/g.

When the difference value of the SAR values of any two adjacent first gears is 0.05mW/g, and the difference value of the SAR values of any two adjacent second gears is 0.05mW/g, the difference value of the SAR values of the first gears is small, the difference value of the SAR values of the second gears is small, the difference value of the upper limit value between the adjacent second gears is small, the terminal equipment can approach to continuously and dynamically adjust the maximum transmitting power of the second transmitter, the limit of the SAR values is fully utilized, the maximum transmitting power of the second transmitter is improved as much as possible under the condition that the requirement of the SAR values is met, and further the communication quality of the second transmitter is improved.

Optionally, the first transmitter is one of a transmitter of cellular mobile communication signals and a transmitter of Wi-Fi signals, and the second transmitter is one of a transmitter of cellular mobile communication signals and a transmitter of Wi-Fi signals.

The terminal equipment can execute the method for determining the maximum transmitting power of the transmitter when the transmitters of any two standards transmit simultaneously, thereby improving the communication quality of various standards.

Optionally, the first transmitter includes a first sub-transmitter and a second sub-transmitter, and the current transmission power includes: the first sub-transmission power of the first sub-transmitter at the current moment and the second sub-transmission power of the second sub-transmitter at the current moment are provided, the first target gear comprises a first sub-target gear and a second sub-target gear, the first sub-target gear is a gear corresponding to the first sub-transmission power, the second sub-target gear is a gear corresponding to the second sub-transmission power, and the SAR value of the first target gear is the sum of the SAR value of the first sub-target gear and the SAR value of the second sub-target gear.

Aiming at a scene when three transmitters transmit signals simultaneously, the terminal equipment can determine the maximum transmitting power allowed by the third transmitter according to the transmitting power of two transmitters at the current moment, so that the problem of communication quality reduction caused by the limitation of the maximum transmitting power by the three transmitters according to respective fixed power back-off amounts is avoided, the maximum transmitting power of the second transmitter is dynamically adjusted along with the transmitting power of the first sub-transmitter and the transmitting power of the second sub-transmitter, and the maximum transmitting power of the second transmitter is improved as much as possible under the condition of ensuring that the SAR value of the whole terminal equipment meets the requirements of regulations, so that the communication quality is improved.

Optionally, the first sub-transmitter is a fourth generation mobile communication technology 4G signal transmitter, the second sub-transmitter is a 5G signal transmitter, and the second transmitter is a Wi-Fi signal transmitter.

The terminal equipment can determine the maximum transmitting power of the Wi-Fi transmitter according to the power of the 4G signal and the power of the 5G signal, so that the maximum transmitting power of the Wi-Fi transmitter is dynamically adjusted along with the power of the 4G signal and the power of the 5G signal, the maximum transmitting power of the Wi-Fi transmitter is improved as much as possible, and the communication quality of Wi-Fi is improved.

In a second aspect, an apparatus for determining a maximum transmit power of a transmitter in a multi-transmitter scenario is provided, including:

the acquisition module is used for acquiring the current transmitting power of the first transmitter;

a first determining module, configured to determine a second target gear of a second transmitter according to a first target gear corresponding to the current transmission power and a preset gear correspondence relationship, where the gear correspondence relationship includes a one-to-one correspondence relationship between a plurality of first gears and a plurality of second gears, the plurality of first gears are a plurality of gears to which the transmission power of the first transmitter is distributed, the plurality of second gears are a plurality of gears to which the transmission power of the second transmitter is distributed, in the gear correspondence relationship, a sum of electromagnetic radiation ratio SAR absorption rates of any two first gears and any two second gears having a correspondence relationship is less than or equal to a SAR threshold, the first target gear is one of the plurality of first gears, and the second target gear is one of the plurality of second gears;

and the second determining module is used for determining the maximum transmitting power of the second transmitter according to the second target gear.

Optionally, the obtaining module is specifically configured to determine whether the first transmitter and the second transmitter are in a simultaneous transmission state; and if so, acquiring the current transmitting power of the first transmitter.

A first determination module, further configured to determine a first candidate gear from the plurality of first gears, where the first candidate gear is one of the plurality of first gears with a smallest SAR value; determining the first candidate gear as the first target gear when the current transmission power is less than or equal to the maximum power of the first candidate gear; determining a second candidate gear from the plurality of first gears when the current transmit power is greater than the maximum power of the first candidate gear, the second candidate gear being one of the plurality of first gears having a SAR value closest to the SAR value of the first candidate gear, and the SAR value of the second candidate gear being greater than the SAR value of the first candidate gear; determining the second candidate gear as the first target gear when the current transmission power is less than or equal to the maximum power of the second candidate gear; determining the first target gear from the remaining first gears of the plurality of first gears when the current transmission power is greater than the maximum power of the second candidate gear.

In a third aspect, an electronic device is provided, which includes: a processor, a memory, and an interface; the processor, the memory and the interface cooperate with each other to enable the electronic device to perform any one of the methods according to the first aspect.

In a fourth aspect, an embodiment of the present application provides a chip, including a processor; the processor is configured to read and execute the computer program stored in the memory to perform any one of the methods in the technical solutions of the first aspect.

Optionally, the chip further comprises a memory, and the memory is connected with the processor through a circuit or a wire.

Further optionally, the chip further comprises a communication interface.

In a fifth aspect, a computer-readable storage medium is provided, in which a computer program is stored, which, when executed by a processor, causes the processor to perform any of the methods of the first aspect.

In a sixth aspect, there is provided a computer program product comprising: computer program code for causing an electronic device to perform any of the methods of the first aspect when said computer program code is run on the electronic device.

Drawings

Fig. 1 is a schematic structural diagram of an example of a terminal device 100 according to an embodiment of the present application;

fig. 2 is a schematic view of an application scenario in which the method for determining maximum transmission power of a transmitter in a multi-transmitter scenario is applied in the embodiment of the present application;

fig. 3 is a flowchart illustrating an exemplary method for determining a maximum transmission power of a transmitter in a multi-transmitter scenario according to an embodiment of the present disclosure;

FIG. 4 is a diagram illustrating an example of a corresponding relationship between maximum power values of different gears according to an embodiment of the present disclosure;

fig. 5 is a flowchart illustrating an exemplary method for determining a maximum transmission power of a transmitter in a multi-transmitter scenario according to an embodiment of the present disclosure;

fig. 6 is a flowchart illustrating an exemplary method for determining maximum transmission power of a transmitter in a multi-transmitter scenario according to an embodiment of the present disclosure;

fig. 7 is a flowchart illustrating an exemplary method for determining a maximum transmission power of a transmitter in a multi-transmitter scenario according to an embodiment of the present application;

fig. 8 is a flowchart illustrating an exemplary method for determining a maximum transmission power of a transmitter in a multi-transmitter scenario according to an embodiment of the present disclosure;

fig. 9 is a schematic structural diagram of an apparatus for determining maximum transmission power of a transmitter in a multi-transmitter scenario according to an example provided in this application.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. In the description of the embodiments herein, "/" means "or" unless otherwise specified, for example, a/B may mean a or B; "and/or" herein is merely an association describing an associated object, and means that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, in the description of the embodiments of the present application, "a plurality" means two or more than two.

In the following, the terms "first", "second" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", "third" may explicitly or implicitly include one or more of the features.

The method for determining the maximum transmission power of the transmitter in the multi-transmitter scenario provided in the embodiment of the present application may be applied to a mobile phone, a tablet computer, a wearable device, an in-vehicle device, an Augmented Reality (AR)/Virtual Reality (VR) device, a notebook computer, a mobile Personal Computer (PC), an ultra-mobile personal computer (UMPC), a netbook, a Personal Digital Assistant (PDA), and other terminal devices, and the embodiment of the present application does not limit specific types of the terminal devices at all.

For example, fig. 1 is a schematic structural diagram of an example of a terminal device 100 provided in the embodiment of the present application. The terminal 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 speaker 170A, a receiver 170B, a microphone 170C, an earphone interface 170D, a sensor module 180, a key 190, a motor 191, an indicator 192, a camera 193, a display screen 194, a Subscriber Identification Module (SIM) card interface 195, and the like. The sensor module 180 may include a pressure sensor 180A, a gyroscope sensor 180B, an air pressure sensor 180C, a magnetic sensor 180D, an acceleration sensor 180E, a distance sensor 180F, a proximity light sensor 180G, a fingerprint sensor 180H, a temperature sensor 180J, a touch sensor 180K, an ambient light sensor 180L, a bone conduction sensor 180M, and the like.

The wireless communication function of the terminal device 100 may be implemented by the antenna 1, the antenna 2, the mobile communication module 150, the wireless communication module 160, a modem processor, a baseband processor, and the like. The antennas 1 and 2 are used for transmitting and receiving electromagnetic wave signals. The structure of the antenna 1 and the antenna 2 in fig. 1 is merely an example. Each antenna in terminal device 100 may be used to cover a single or multiple communication bands. Different antennas can also be multiplexed to improve the utilization of the antennas. For example: the antenna 1 may be multiplexed as a diversity antenna of a wireless local area network. In other embodiments, the antenna may be used in conjunction with a tuning switch. The mobile communication module 150 may provide a solution including 2G/3G/4G/5G wireless communication applied on the terminal device 100. The mobile communication module 150 may include at least one filter, a switch, a power amplifier, a Low Noise Amplifier (LNA), and the like. The mobile communication module 150 may receive the electromagnetic wave from the antenna 1, filter, amplify, etc. the received electromagnetic wave, and transmit the electromagnetic wave to the modem processor for demodulation. The mobile communication module 150 may also amplify the signal modulated by the modem processor, and convert the signal into electromagnetic wave through the antenna 1 to radiate the electromagnetic wave. In some embodiments, at least some of the functional modules of the mobile communication module 150 may be disposed in the processor 110. In some embodiments, at least some of the functional modules of the mobile communication module 150 may be disposed in the same device as at least some of the modules of the processor 110.

The wireless communication module 160 may provide a solution for wireless communication applied to the terminal device 100, including Wireless Local Area Networks (WLANs) (e.g., wireless fidelity (Wi-Fi) networks), bluetooth (bluetooth, BT), Global Navigation Satellite System (GNSS), Frequency Modulation (FM), Near Field Communication (NFC), Infrared (IR), and the like. The wireless communication module 160 may be one or more devices integrating at least one communication processing module. The wireless communication module 160 receives electromagnetic waves via the antenna 2, performs frequency modulation and filtering processing on electromagnetic wave signals, and transmits the processed signals to the processor 110. The wireless communication module 160 may also receive a signal to be transmitted from the processor 110, perform frequency modulation and amplification on the signal, and convert the signal into electromagnetic waves through the antenna 2 to radiate the electromagnetic waves.

In some embodiments, the antenna 1 of the terminal device 100 is coupled to the mobile communication module 150 and the antenna 2 is coupled to the wireless communication module 160 so that the terminal device 100 can communicate with a network and other devices through wireless communication technology. The wireless communication technology may include global system for mobile communications (GSM), General Packet Radio Service (GPRS), code division multiple access (code division multiple access, CDMA), Wideband Code Division Multiple Access (WCDMA), time-division code division multiple access (time-division code division multiple access, TD-SCDMA), Long Term Evolution (LTE), LTE, BT, GNSS, WLAN, NFC, FM, and/or IR technologies, etc. The GNSS may include a Global Positioning System (GPS), a global navigation satellite system (GLONASS), a beidou navigation satellite system (BDS), a quasi-zenith satellite system (QZSS), and/or a Satellite Based Augmentation System (SBAS).

It is to be understood that the illustrated structure of the embodiment of the present application does not constitute a specific limitation to the terminal device 100. In other embodiments of the present application, terminal device 100 may include more or fewer components than shown, or some components may be combined, some components may be split, or a different arrangement of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

For convenience of understanding, the following embodiments of the present application will specifically describe, by taking a terminal device having a structure shown in fig. 1 as an example, a method for determining a maximum transmission power of a transmitter in a multi-transmitter scenario provided in the embodiments of the present application with reference to the accompanying drawings and application scenarios.

When multiple systems of the same terminal device communicate simultaneously, a scene that multiple antennas transmit signals simultaneously exists, and each antenna transmitting signals can radiate the outside world to influence the SAR value of the whole mobile phone. For the same mobile phone, the SAR value of the whole mobile phone needs to meet the regulatory requirements in the scene of transmitting signals by one antenna or simultaneously transmitting signals by a plurality of antennas. In the scenario shown in fig. 2, the Wi-Fi antenna of the handset 201 transmits a Wi-Fi signal to the router 202, and the main rf antenna of the handset 201 transmits a fourth generation mobile communication technology (4G) signal or a fifth generation mobile communication technology (5G) signal to the base station 203. Taking the scenario shown in fig. 2 as an example, the conventional method for controlling the SAR value is to allocate the SAR value required by the regulations between two systems, and set the respective maximum transmission power according to the respective allocated SAR value. For example, when the SAR value of the entire handset 201 is required to be not more than 1.6mW/g, a quota of 0.8mW/g may be allocated to each system, that is, the SAR value of the main radio frequency antenna is not more than 0.8mW/g, and the SAR value of the Wi-Fi antenna is not more than 0.8 mW/g. Even if the transmitters of two systems transmit at the same time according to the maximum transmitting power allowed by the transmitters, the SAR value of the whole mobile phone does not exceed 1.6mW/g required by the regulation. However, in most cases, the transmitter of the main radio frequency may not always transmit signals according to the maximum allowed transmission power, and may transmit signals according to a power less than the maximum transmission power, so that the SAR value of the main radio frequency antenna may not reach around 0.8mW/g, and a certain margin may be provided compared with the requirement of the SAR value of 0.8mW/g, if the maximum transmission power of the Wi-Fi is still limited according to the requirement of the SAR value of 0.8mW/g, when the distance between the handset 201 and the router 202 is long, the communication quality of the Wi-Fi may be reduced in a case that the maximum transmission power of the Wi-Fi transmitter cannot meet the communication requirement.

In the embodiment of the application, the terminal device can adjust the maximum transmitting power allowed by one transmitter according to the current transmitting power of the other transmitter under the condition that the two transmitters simultaneously transmit signals, so that the terminal device can transmit signals with higher power as much as possible under the condition that the SAR value of the whole terminal device meets the regulatory requirement, and the communication quality is improved. The two transmitters respectively correspond to two antennas, and the two transmitters may transmit signals of the same system or transmit signals of different systems, which is not limited in this embodiment of the present application. It should be noted that the maximum transmission power in the conduction state is usually fixed, and when the terminal device is in the air interface state, the maximum transmission power in the air interface state is obtained by performing power backoff on the maximum transmission power in the conduction state, that is, the maximum transmission power in the air interface state is limited by setting a power backoff amount. For example, the maximum transmit power in the conducting state is 23dBm, if the power back-off is set to 2dB, the maximum transmit power in the air gap state is set to 21 dBm. In the embodiment of the present application, unless otherwise specified, in the conducting state, the remaining maximum transmission power all means the maximum transmission power allowed to be transmitted after power backoff in the air interface state. The maximum transmission power in the embodiment of the present application is an upper limit value of power allowed to be transmitted by the terminal device, that is, a maximum value of power that can be transmitted by the terminal device under the condition that a signal of the base station is weak, and the terminal device usually adjusts the magnitude of its own transmission power according to the strength of the signal of the base station at its location. When the transmission power of the first transmitter is increased, the terminal device may increase the power back-off of the second transmitter in an air interface state to reduce the maximum transmission power of the second transmitter; when the transmission power of the first transmitter is reduced, the terminal device may reduce the power back-off of the second transmitter in the air interface state to increase the maximum transmission power of the second transmitter. Taking the simultaneous transmission of the transmitters of the two systems of 4G and Wi-Fi as an example, when the transmission power of the 4G signal is increased, the power back-off of the Wi-Fi can be increased to reduce the maximum transmission power of the Wi-Fi; when the transmission power of the 4G signal is reduced, the power back-off of Wi-Fi can be reduced to increase the maximum transmission power of Wi-Fi. The method can avoid the problem that the communication quality is reduced due to the fact that the two transmitters limit the maximum transmitting power according to the respective fixed power backspacing quantities, and the maximum transmitting power of the transmitters is improved as much as possible under the condition that the SAR value of the whole terminal device meets the requirements of regulations, so that the communication quality is improved.

Fig. 3 is a flowchart illustrating an exemplary method for determining maximum transmission power of a transmitter in a multi-transmitter scenario according to an embodiment of the present application. The method shown in fig. 3 comprises the following steps:

s301, obtaining the current transmitting power of the first transmitter.

The terminal device may obtain a current transmission power of the first transmitter in a current state, for example, by reading a setting value related to the transmission power. The first transmitter corresponds to one antenna, and a signal transmitted by the first transmitter is transmitted to the corresponding antenna connected through the corresponding radio frequency path for radiation.

S302, determining a second target gear of a second transmitter according to a first target gear corresponding to the current transmission power and a preset gear corresponding relationship, wherein the gear corresponding relationship comprises a one-to-one corresponding relationship of a plurality of first gears and a plurality of second gears, the plurality of first gears are a plurality of gears distributed by the transmission power of the first transmitter, the plurality of second gears are a plurality of gears distributed by the transmission power of the second transmitter, in the gear corresponding relationship, the sum of the electromagnetic radiation ratio absorption rate (SAR) values of any two first gears and any two second gears with corresponding relationship is less than or equal to an SAR threshold value, the first target gear is one of the plurality of first gears, and the second target gear is one of the plurality of second gears.

S303, determining the maximum transmitting power of the second transmitter according to the second target gear.

The dynamic range in which the transmission power of the first transmitter is distributed may be divided into a plurality of first gears, and the terminal device may determine which first gear is located according to the current transmission power of the first transmitter, and use the first gear in which the current transmission power is located as the first target gear. Taking the example of the first transmitter transmitting the LTE signal, the dynamic range of the transmission power of the terminal device may be divided into three steps, where 20.8dBm (decibel milliwatt) or less is a first step, 20.8dBm (none) to 22dBm (inclusive) is a second first step, and 22dBm (none) to 23dBm (inclusive) is a third first step, and if the current transmission power of the first transmitter is 21dBm, the terminal device may determine that the first target step at which the current transmission power of the first transmitter is located is the second first step, i.e., 20.8dBm to 22 dBm. The dynamic range in which the transmission power of the second transmitter is distributed may also be divided into a plurality of second gears, and optionally, the dividing manner of the second gears may adopt, for example, the dividing manner of the transmission power of the first transmitter, or adopt other dividing manners, which is not limited in this embodiment.

It should be noted that the terminal device may obtain in advance a gear correspondence between the first transmitter and the second transmitter, where the gear correspondence includes a plurality of first gears and a plurality of second gears, the first gears are gears that divide a dynamic range in which transmission power of the first transmitter is distributed, and the second gears are gears that divide a dynamic range in which transmission power of the second transmitter is distributed. And the plurality of first gears and the plurality of second gears correspond one to one. The sum of the SAR value of any one first gear and the SAR value of the second gear corresponding to the first gear is smaller than or equal to the SAR threshold value. The SAR threshold is a limit value of the SAR value that meets the regulatory requirements. In the embodiment of the present application, the SAR value of the gear is an SAR value of an antenna corresponding to a transmitter when the transmitter transmits a signal according to the power of the upper limit value of the gear.

Optionally, the plurality of first gears of the first transmitter may be sequentially arranged according to a sequence of the transmission power from low to high, and the plurality of second gears of the second transmitter may also be sequentially arranged according to a sequence of the transmission power from low to high. It should be noted that, in the embodiment of the present application, a high gear indicates a power value covered by the gear, a high gear indicates that the power value covered by the gear is large, and a low gear indicates that the power value covered by the gear is small. The number of the first gear and the second gear is M, where M is a natural number greater than or equal to 3, and the gear correspondence relationship may include: the first gear corresponds to the last (i.e., mth) second gear, the second first gear corresponds to the M-1 st second gear, and so on, the ith first gear corresponds to the M +1-i th second gear, where i is an integer greater than 1 and less than M, and the mth first gear corresponds to the first second gear. In some embodiments, the first gear and the second gear may also be arranged in a high-to-low order without a change in gear correspondence.

Taking as an example that the plurality of first gears sequentially include D11, D12, and D13 from small to large according to the magnitude of the covered power value, and the plurality of second gears sequentially include D21, D22, and D23 from small to large according to the magnitude of the covered power value, the gear correspondence relationship may be as shown in table 1 below:

TABLE 1

As shown in table 1, when the power value of the transmission signal of the first transmitter is in the gear position of D11, i.e. the transmission power of the first transmitter is less than or equal to P11 (e.g. P11 is 20.8dBm), the first gear position D11 in table 1 corresponds to the second gear position D23, which indicates that the SAR value of the entire terminal device can meet the regulatory requirement when the first transmitter and the second transmitter transmit simultaneously if the power value of the signal of the second transmitter is the upper limit P23 (e.g. P23 is 18dBm) of the second gear position D23. When the signal power value transmitted by the first transmitter is in the position of D12, that is, the signal power value transmitted by the first transmitter is greater than P11 (for example, P11 is 20.8dBm) and less than or equal to P12 (for example, P12 is 22dBm), the first position D12 in table 1 corresponds to the second position D22, which indicates that the SAR value of the whole terminal device can meet the legal requirement when the first transmitter and the second transmitter transmit simultaneously if the second transmitter transmits the upper limit P22 (for example, P22 is 17dBm) of the second position D22. When the signal power value transmitted by the first transmitter is in the position of D13, that is, the signal power value transmitted by the first transmitter is greater than P12 (for example, P12 is 22dBm) and less than or equal to P13 (for example, P13 is 23dBm), the first position D13 in table 1 corresponds to the second position D21, which indicates that the SAR value of the whole terminal device can meet the regulatory requirement when the first transmitter and the second transmitter transmit simultaneously if the second transmitter transmits the upper limit P21 (for example, P21 is 15.8dBm) of the second position D21.

The causal relationships are not distinguished according to the sequence in the gear correspondence relationships, that is, if D11 corresponds to D23, D23 corresponds to D11, and the terminal device may also search the gear correspondence relationships according to a second target gear in which the transmission power of the second transmitter is located, obtain a first target gear corresponding to the second target gear, and determine the maximum transmission power of the first transmitter according to the first target gear. I.e. the signal power value of the second transmitter is less than or equal to P21 (e.g. 15.8dBm for P21), and second gear D21 in table 1 corresponds to first gear D13, which shows that the SAR value of the whole terminal device can meet the regulatory requirement when the first transmitter and the second transmitter transmit simultaneously if the signal power value of the first transmitter is D13, which is the upper limit value P13 (e.g. 23dBm for P13) of the second gear. When the signal power value transmitted by the second transmitter is in the range of D22, that is, the signal power value transmitted by the second transmitter is greater than P21 (for example, P12 is 15.8dBm) and less than or equal to P22 (for example, P22 is 17dBm), the second range D22 in table 1 corresponds to the first range D12, which indicates that the SAR value of the entire terminal device can meet the legal requirement when the first transmitter and the second transmitter transmit simultaneously if the first transmitter transmits the upper limit P12 (for example, P12 is 22dBm) of the first range D12. When the signal power value transmitted by the second transmitter is in the range of D23, that is, the signal power value transmitted by the second transmitter is greater than P22 (for example, P22 is 17dBm) and less than or equal to P23 (for example, P23 is 18dBm), the second range D23 in table 1 corresponds to the first range D11, which indicates that the SAR value of the entire terminal device can meet the legal requirement when the first transmitter and the second transmitter transmit simultaneously if the first transmitter transmits the upper limit P11 (for example, P11 is 20.8dBm) of the first range D11.

In the embodiment shown in fig. 3, because the sum of the SAR values of the first target gear and the second target gear is less than or equal to the SAR threshold, the terminal device determines the second target gear according to the first target gear where the current transmission power of the first transmitter is located, and determines the maximum transmission power of the second transmitter according to the second target gear, so that the problem that the two transmitters limit the reduction of the communication quality caused by the maximum transmission power according to the respective fixed power back-off amounts can be avoided, the dynamic adjustment of the maximum transmission power of the second transmitter is realized, and the maximum transmission power of the second transmitter is increased as much as possible under the condition that the SAR value of the whole terminal device meets the regulatory requirements, thereby improving the communication quality.

In order to express the gear position corresponding relationship more clearly, the gear position corresponding relationship shown in table 1 is taken as an example, and the gear position corresponding relationship is expressed graphically as the corresponding relationship shown in fig. 4. In fig. 4, the horizontal axis represents time T and the vertical axis represents transmission power P, where P1 represents transmission power of the first transmitter and P2 represents transmission power of the second transmitter. In the diagram (a) in fig. 4, the transmission power of the first transmitter is above P12 and below P13, for example, when the transmission power of the first transmitter is P12, the maximum transmission power of the second transmitter may be P21 or any value less than P21; in the diagram (b) in fig. 4, the transmission power of the first transmitter is above P11 and below P12, for example, when the transmission power of the first transmitter is P12, the maximum transmission power of the second transmitter may be P22 or any value less than P22; in the graph (c) in fig. 4, when the transmission power of the first transmitter is P11 or less, the maximum transmission power of the second transmitter may be P23 or an arbitrary value less than P23.

The gear corresponding relationship shown in table 1 may further include a corresponding relationship of SAR values corresponding to each gear, as shown in table 2:

TABLE 2

In table 2, when the value of the signal power transmitted by the first transmitter is P11, the SAR value of the antenna corresponding to the first transmitter is 0.6mW/g, and if the maximum transmission power of the second transmitter is P23, the SAR value of the antenna corresponding to the second transmitter is at most 1mW/g, and the sum of the SAR values is 1.6mW/g, the SAR value of the terminal device meets the regulatory requirements. When the value of the signal power transmitted by the first transmitter is P12, the SAR value of the corresponding antenna when the first transmitter transmits the maximum transmission power is 0.8mW/g, if the maximum transmission power of the second transmitter is P22, the SAR value of the corresponding antenna when the second transmitter transmits the maximum transmission power is 0.8mW/g at most, the sum of the SAR values is 1.6mW/g, and the SAR value of the terminal equipment meets the regulatory requirement. When the value of the signal power transmitted by the first transmitter is P13, the SAR value of the antenna corresponding to the first transmitter is 1mW/g, if the maximum transmission power of the second transmitter is P21, the SAR value of the antenna corresponding to the second transmitter when the maximum transmission power is transmitted is 0.6mW/g, at the moment, the sum of the SAR values is 1.6mW/g, and the SAR value of the terminal equipment meets the requirements of regulations. The limit value of the regulatory requirement of the SAR value is an example and does not limit the scheme of the embodiment of the present application, and the limit of the SAR value may be different according to the regulatory requirement and the testing environment.

In some embodiments, the maximum transmission power of the second transmitter may be an upper limit value of the second target gear corresponding to the first target gear, or may be any value smaller than the upper limit value of the second target gear, which is not limited in this application. For example, when the current transmission power of the first transmitter is in the second first gear position D12, the second target gear position is determined to be D22 according to the corresponding relationship shown in table 1 or table 2, and the maximum transmission power of the second transmitter is determined to be P22 (in dBm); the maximum transmitting power of the second transmitter may also be determined as P22, or other values smaller than P22, such as values between P22 and (P22-2dB), for example, (P22-1dB), or (P22-0.5 dB).

Alternatively, the above-described gear correspondence may be obtained through experiments. Taking the gear corresponding relation shown in table 2 as an example, the power range of the first transmitter is divided into three gears D11, D12 and D13 from small to large, and the upper limit values of the transmission power of the three gears are P11, P12 and P13 in sequence. When the transmission power of the first transmission is P11, the SAR value corresponding to the first transmitter is tested to be 0.6mW/g, and the SAR value of the antenna of the second transmitter cannot exceed 1mW/g according to the calculation of 1.6mW/g required by the regulation. Then, the SAR values at which the second transmitter transmits signals of different power values are set, and the power value P23 corresponding to the SAR value equal to or next to 1mW/g is found, taking P23 as the upper limit value of the power of D23 corresponding to D11. When the transmission power of the first transmission is P12, the SAR value corresponding to the first transmitter is tested to be 0.8mW/g, and then the SAR value of the antenna of the second transmitter cannot exceed 0.8mW/g according to the calculation of 1.6mW/g required by the regulation. Then, the SAR values at which the second transmitter transmits signals of different power values are set, and a power value P22 corresponding to the SAR value equal to or second only to 0.8mW/g is found, taking P22 as the upper limit value of the power of D22 corresponding to D12. When the transmission power of the first transmission is P13, the SAR value corresponding to the first transmitter is tested to be 1mW/g, and then the SAR value of the antenna of the second transmitter cannot exceed 0.6mW/g according to the calculation of 1.6mW/g required by the regulation. Then, the SAR values at which the second transmitter transmits signals of different power values are set, and the power value P21 corresponding to the SAR value equal to or second only to 0.6mW/g is found, with P21 as the upper limit value of the power of D21 corresponding to D13, thereby obtaining the above table 2.

In the gear correspondence relationship shown in table 2, an example is that one transmitter includes three gears, and actually, the number of the first gears and the second gears in the gear correspondence relationship may be other numbers. If the first gear and the second gear are more, the adjustment step of the maximum transmitting power of the second transmitter is smaller, so that the terminal device can dynamically adjust the maximum transmitting power of the second transmitter according to the adjustment of the transmitting power of the first transmitter, the limit of the SAR value can be fully utilized, namely the maximum transmitting power is improved as much as possible under the condition of meeting the requirement of the SAR value, and the communication quality of the second transmitter is improved; if the number of the first gear and the second gear is small, when the transmission power of the first transmitter changes, the terminal equipment can reduce the adjustment times of the maximum transmission power of the second transmitter, reduce the data processing times and save resources. When the number of the first gear and the second gear is three, the communication quality and the occupation of resources can be balanced, and the gear division is more reasonable.

The gear corresponding relationship can also be obtained through experiments, and then under the condition that the SAR value meets the requirements of regulations, other corresponding relationships between the first gear and the second gear are obtained through conversion. Specifically, when the SAR value corresponding to the first transmitter when the transmission power is B is obtained as a through test, the formula a may be adopted₁＝A×10∧((B-B₁) /10) or the maximum power B of other gears is obtained by the deformation calculation of the formula₁Corresponding SAR value A₁. Where B is the maximum value of the power corresponding to the gear of the transmitter, and the terminal device may subtract a from the SAR threshold₁Difference A of₂As the SAR value corresponding to the second gear position D2 corresponding to the first gear position D1, the formula B is adopted₂＝B-10×lg₁₀(A₂/A) or the SAR value A obtained by the deformation calculation of the formula₂Corresponding power value B₂The power value B₂Is the maximum value of the power of the second gear position D2 corresponding to the first gear position D1. Optionally, when the test result shows that the corresponding SAR value of the first transmitter is a when the transmission power is B, the formula B may also be adopted₁＝B-10×lg₁₀(A₁/A) or obtaining other SAR values A by the deformation calculation of the formula₁Corresponding power value B₁. Where B is the maximum value of the power corresponding to the gear of the transmitter, and the terminal device may subtract a from the SAR threshold₁Difference A of₂The second shift position D2 corresponding to the first shift position D1Corresponding SAR value and adopting formula B₂＝B-10×lg₁₀(A₂/A) or the SAR value A obtained by the deformation calculation of the formula₂Corresponding power value B₂The power value B₂The maximum power value for the second gear D2. In some embodiments, three or five first gear and second gear correspondences may be tested, and then a greater number of correspondences may be obtained in the manner described above, thereby forming a smaller step gear correspondence. Each converted gear corresponding relationship may be obtained by conversion according to a gear corresponding relationship with a small self-value difference (which may include a small SAR value difference, or a small power value difference) obtained through a test. The gear stage correspondence shown in table 3 can be obtained in the above manner with the correspondence shown in table 2. In table 3, P11 is 20.8dBm, P12 is 22dBm, P13 is 23dBm, P21 is 15.8dBm, P22 is 17dBm, and P23 is 18 dBm. As shown in table 3:

TABLE 3

In some embodiments, the first gear and the second gear in the gear correspondence relationship may be divided more finely, so as to obtain a greater number of correspondence relationships between the first gear and the second gear. For example, the first gear may be divided according to the power corresponding SAR value difference of 0.05mW/g, that is, the difference between the SAR values of any two adjacent first gears is 0.05mW/g, and the difference between the SAR values of any two adjacent second gears is 0.05mW/g, as shown in table 4:

TABLE 4

When the difference value of the SAR values of any two adjacent first gears is 0.05mW/g, and the difference value of the SAR values of any two adjacent second gears is 0.05mW/g, the terminal equipment can be used for continuously and dynamically adjusting the maximum transmitting power of the second transmitter in a near-continuous manner due to the small difference value of the SAR values of the first gears and the small difference value of the upper limit value between the adjacent second gears, so that the maximum transmitting power of the second transmitter is improved as much as possible under the condition that the requirement of the SAR values is met, and further the communication quality of the second transmitter is improved.

In some embodiments, the terminal device may also determine whether it is in a state where multiple transmitters transmit simultaneously. If the first transmitter and the second transmitter are in a simultaneous transmission state, the terminal device may perform the method steps of the embodiment shown in fig. 3 above; alternatively, the terminal device may not perform the method steps of the embodiment shown in fig. 3 described above if the first transmitter and the second transmitter are not in a simultaneous transmission state. The terminal equipment starts the process of executing the dynamic adjustment of the maximum transmitting power of the second transmitter by judging that the terminal equipment is in the simultaneous transmitting state of the plurality of transmitters, so that the resource waste caused by invalid adjustment can be avoided, and the resource utilization rate is improved.

On the basis of the foregoing embodiments, the terminal device may further determine the first target gear according to the current transmission power, and taking the number of the first gears as three as an example, a method for the terminal device to determine the first target gear according to the current transmission power may refer to a flowchart shown in fig. 5, where the method includes:

s501, determining a first candidate gear from the plurality of first gears, wherein the first candidate gear is the one with the smallest SAR value in the plurality of first gears;

S502A, when the current transmission power is less than or equal to the maximum power of the first candidate gear, determining the first candidate gear as the first target gear;

S502B, when the current transmission power is larger than the maximum power of the first candidate gear, determining a second candidate gear from the plurality of first gears, wherein the second candidate gear is one of the plurality of first gears, the SAR value of which is closest to the SAR value of the first candidate gear, and the SAR value of the second candidate gear is larger than the SAR value of the first candidate gear;

S503A, when the current transmission power is less than or equal to the maximum power of the second candidate gear, determining the second candidate gear as the first target gear;

S503B, determining the first target gear from the remaining first gears of the plurality of first gears when the current transmission power is greater than the maximum power of the second candidate gear.

The maximum power of the gear mentioned above is the upper limit value of the power of the gear, i.e. the maximum value of the power of the gear. When the first gear is three, and the first transmitter is a primary radio frequency transmitter (i.e. a primary radio frequency transmitter, which is a transmitter that transmits primary radio frequency signals such as 2G, 3G, 4G, or 5G), and the second transmitter is a Wi-Fi transmitter, the method shown in fig. 5 may refer to the flow shown in fig. 6, which includes: the terminal equipment is started, and whether the terminal equipment is in a combined mode of main frequency and Wi-Fi or not is periodically detected, namely whether a main frequency transmitter and a Wi-Fi transmitter are in a simultaneous transmitting state or not is detected. And when the terminal equipment is not in the main frequency + Wi-Fi combined mode, continuously detecting whether the terminal equipment is in the main frequency + Wi-Fi combined mode or not at a certain interval. When the terminal equipment is in a combined mode of main frequency and Wi-Fi, judging whether the current transmitting power of a transmitter of the main frequency is larger than the lowest first gear, if not, determining that the gear of the Wi-Fi transmitter is the highest second gear, and outputting the upper limit value of the power of the highest second gear (namely the maximum value of the power of the highest second gear) as the maximum transmitting power of the Wi-Fi transmitter. If the current transmitting power of the transmitter of the main frequency is larger than the lowest first gear, the terminal equipment continuously judges whether the current transmitting power of the transmitter of the main frequency is larger than the second lowest first gear, if not, the gear of the Wi-Fi transmitter can be determined to be the second highest gear, and the upper limit value of the second highest gear (namely the maximum value of the power of the second highest gear) is output to be used as the maximum transmitting power of the Wi-Fi transmitter. If the current transmission power of the transmitter of the main frequency is greater than the first gear which is the second lowest, the terminal device may determine that the gear of the Wi-Fi transmitter is the lowest second gear, and output the upper limit value of the power of the lowest second gear (i.e., the maximum value of the power of the lowest second gear) as the maximum transmission power of the Wi-Fi transmitter. And then the terminal equipment can determine to be powered off when the terminal equipment needs to be powered off, or periodically inquire whether the terminal equipment is in the combined mode of the main frequency and the Wi-Fi under the condition of not being powered off, and continuously execute the process.

When the first gear is M, the second gear is M (M is greater than 3), and the first transmitter is a main frequency transmitter and the second transmitter is a Wi-Fi transmitter, the method shown in fig. 5 may refer to a flow shown in fig. 7, which includes: the terminal equipment is started, and whether the terminal equipment is in a combined mode of main frequency and Wi-Fi or not is periodically detected, namely whether the main frequency transmitter and the Wi-Fi transmitter are in a simultaneous transmitting state or not is detected. The method comprises the following steps: the terminal equipment is started, whether the terminal equipment is in a main frequency + Wi-Fi combined mode or not is periodically detected, and the main frequency transmitter and the Wi-Fi transmitter are judged to be in a simultaneous transmitting state. And when the terminal equipment is not in the main frequency + Wi-Fi combined mode, continuously detecting whether the terminal equipment is in the main frequency + Wi-Fi combined mode or not at a certain interval. When the terminal equipment is in a combined mode of main frequency and Wi-Fi, judging whether the current transmitting power of a main frequency transmitter is larger than a first gear, if not, determining that the current transmitting power of the main frequency transmitter is in the first gear, so that the gear of the Wi-Fi transmitter is an Mth second gear, and outputting an upper limit value (namely the maximum value of the power of the highest second gear) of the power of the Mth second gear (the highest second gear) as the maximum transmitting power of the Wi-Fi transmitter. If the current transmission power of the main frequency transmitter is larger than the first gear, the terminal equipment continuously judges whether the current transmission power of the main frequency transmitter is larger than the second first gear, if not, the current transmission power of the main frequency transmitter can be determined to be in the second first gear, therefore, the gear of the Wi-Fi transmitter is the M-1 (second highest gear) second gear, and the upper limit value of the power of the M-1 second gear (namely the maximum value of the second highest gear) is output to be used as the maximum transmission power of the Wi-Fi transmitter. If the current transmission power of the master frequency transmitter is greater than the second first gear, the terminal device may continuously determine whether the current reflected power of the master frequency transmitter is greater than the ith second gear (where i is a value from an integer 3), if not, determine that the gear of the Wi-Fi transmitter is the ith second gear, and output the upper limit value of the power of the (M + 1) -i) th second gear as the maximum transmission power of the Wi-Fi transmitter. By analogy, if the first gear is increased by one gear, the corresponding second gear is decreased by one gear, until the current transmission power of the main frequency transmitter is in the mth first gear (the highest first gear), the terminal device may determine that the gear of the Wi-Fi transmitter is the first second gear (the lowest second gear), and output the upper limit value of the power of the first second gear (i.e., the maximum value of the power of the lowest second gear) as the maximum transmission power of the Wi-Fi transmitter. The terminal device may then determine to shut down when it is needed, or may periodically query whether the terminal device is in the association mode without shutting down, and continue to execute the above-mentioned process.

When the first gear is M and the second gear is M (M is greater than 3), the first gear and the second gear are respectively arranged from small to large, and the method shown in fig. 5 may refer to the flow shown in fig. 8, and includes: the terminal equipment is started, and whether the terminal equipment is in a combined mode of two transmitters is periodically detected, namely, the first transmitter and the second transmitter are in a simultaneous transmission state is judged. When the terminal device is not in the joint mode of the two transmitters, whether the terminal device is in the joint mode of the two transmitters is continuously detected after a certain period. When the terminal device is in a joint mode of two transmitters, whether the current transmission power of the first transmitter is greater than a first gear is judged, if not, the current transmission power of the first transmitter is determined to be in the first gear, so that the gear of the second transmitter is an mth second gear, and an upper limit value of the power of the mth second gear (the highest second gear) (i.e., the maximum value of the power of the highest second gear) is output as the maximum transmission power of the second transmitter. If the current transmission power of the first transmitter is greater than the first gear, the terminal device continues to judge whether the current transmission power of the first transmitter is greater than the second first gear, if not, the current transmission power of the first transmitter is determined to be in the second first gear, so that the gear of the second transmitter is the (next-highest second gear) M-1 second gear, and the upper limit value of the power of the (M-1) th second gear (namely the maximum value of the next-highest second gear) is output as the maximum transmission power of the Wi-Fi transmitter. If the current transmission power of the first transmitter is greater than the second first gear, the terminal device may continue to determine whether the current reflected power of the first transmitter is greater than the ith second gear (where i is a value from an integer 3), and if not, determine that the gear of the second transmitter is the ith second gear, and output the upper limit value of the power of the M +1-i second gear as the maximum transmission power of the second transmitter. By analogy, if the first gear is increased by one gear, the corresponding second gear is decreased by one gear, until the current transmission power of the first transmitter is in the mth first gear (the highest first gear), the terminal device may determine that the gear of the second transmitter is the first second gear (the lowest second gear), and output the upper limit value of the power of the first second gear (i.e., the maximum value of the power of the lowest second gear) as the maximum transmission power of the second transmitter. The terminal device may then determine to shut down when it is needed, or may periodically query whether the terminal device is in the association mode without shutting down, and continue to execute the above-mentioned process.

In the methods shown in fig. 6, 7, and 8, the terminal device compares the current transmission power of the first transmitter with the plurality of first gears from low to high step by step to determine the first target gear, so that the first target gear where the current transmission power is located can be accurately found. And then the terminal equipment determines a corresponding second target gear according to the first target gear on the basis of the gear corresponding relation, so that the reasonable maximum transmitting power of the second transmitter can be accurately determined and output on the basis of the second target gear, and the reasonability of the maximum transmitting power of the second transmitter is improved.

The method shown in fig. 6, 7, and 8 is to compare the current transmission power with a plurality of first gears arranged from low to high step by step to obtain a first target gear, and in some embodiments, the method for determining the first target gear may also be to compare the current transmission power with a plurality of first gears arranged from high to low step by step, which is not limited in this embodiment.

In some embodiments, the first transmitter is one of a transmitter of cellular mobile communication signals and a transmitter of Wi-Fi signals, and the second transmitter is one of a transmitter of cellular mobile communication signals and a transmitter of Wi-Fi signals. The transmitter of the cellular mobile communication signal may include a transmitter of a 2G signal, a transmitter of a 3G signal, a transmitter of a 4G signal, or a transmitter of a 5G signal, and the transmitter of the Wi-Fi signal may include a 2.4G Wi-Fi transmitter or a 5G Wi-Fi transmitter. The terminal equipment can execute the method for determining the maximum transmitting power of the transmitter when the transmitters of any two standards transmit simultaneously, thereby improving the communication quality of various standards.

In some scenarios, there may be a case where three transmitters simultaneously transmit signals, for example, in a case of non-independent networking, a scenario where three transmitters, namely a 4G transmitter, a 5G transmitter and a Wi-Fi transmitter, simultaneously transmit signals, and when the three transmitters simultaneously transmit signals, the SAR value of the entire terminal device also needs to meet the regulatory requirements. For a scenario in which three transmitters simultaneously transmit signals, in the above gear correspondence relationship, each first gear may include one first sub-gear and one second sub-gear, and taking the number of the first sub-gears as three and the number of the second sub-gears as three as an example, the gear correspondence relationship may be as shown in table 5:

TABLE 5

In the gear correspondence relationships shown in Table 5 above, the first sub-gear includes D111, D112 and D113, the second sub-gear includes D121, D122 and D123, and the second gear may include D2a, D2b, D2c and D2D. Alternatively, the second gear may also include a smaller number, for example, after any two adjacent second gears are combined, the maximum value of the power corresponding to the lower gear of the two gears is taken as the maximum value of the power corresponding to the combined second gear. In the gear correspondence relationship of the three transmitters, the sum of the SAR value of the first sub-target gear and the SAR value of the second sub-target gear can be used as the SAR value of the first target gear, and the maximum SAR value corresponding to another transmitter can be determined in the gear correspondence relationship based on the regulatory requirements and the SAR value of the first target gear, and the second target gear can be determined according to the maximum SAR value. It should be noted that the sum of the SAR value of the first sub-target gear, the SAR value of the second sub-target gear and the SAR value of the second target gear is required to meet the requirements of the regulations. In the gear corresponding relation, the sum of the SAR values of the first gear, the second sub-gear and the second gear, which have any corresponding relation, is less than or equal to a certain threshold value, that is, less than or equal to a threshold value required by a regulation.

Specifically, when the transmission power of the first sub-transmitter at the current time is the first sub-transmission power, the transmission power of the second sub-transmitter at the current time is the second sub-transmission power. The terminal device may look up, in the gear correspondence relationship shown in table 5, a first sub-target gear in which the first sub-transmission power is located and a second sub-target gear in which the second sub-transmission power is located, and then use a second gear corresponding to the first sub-target gear and the second sub-target gear as the second target gear. The terminal device may use the upper limit value of the second target gear (i.e. the maximum power value corresponding to the gear) as the maximum transmission power of the second transmitter; the maximum transmission power of the second transmitter may also be set to a value slightly smaller than the upper limit of the second target gear.

In the above scenario when three transmitters transmit signals simultaneously, the terminal device can determine the maximum transmission power allowed by the third transmitter according to the transmission powers of two transmitters at the current time, thereby avoiding the problem of communication quality degradation caused by the limitation of the maximum transmission powers by the three transmitters according to respective fixed power back-off amounts, realizing that the maximum transmission power of the second transmitter is dynamically adjusted along with the transmission powers of the first sub-transmitter and the second sub-transmitter, and improving the maximum transmission power of the second transmitter as much as possible under the condition of ensuring that the SAR value of the whole terminal device meets the regulatory requirements, thereby improving the communication quality.

When the first sub-transmitter is a transmitter of a 4G signal, the second sub-transmitter is a transmitter of a 5G signal, and the second transmitter is a transmitter of a Wi-Fi signal. The terminal equipment can determine the maximum transmitting power of the Wi-Fi transmitter according to the power of the 4G signal and the power of the 5G signal, so that the maximum transmitting power of the Wi-Fi transmitter is dynamically adjusted along with the power of the 4G signal and the power of the 5G signal, the maximum transmitting power of the Wi-Fi transmitter is improved as much as possible, and the communication quality of Wi-Fi is improved.

In some embodiments, if there are four or more scenarios in which the transmitters transmit simultaneously, according to the method described in the above embodiments, according to the SAR value corresponding to the transmit power of one or some of the transmitters at the current time, and then in combination with the regulatory requirement (i.e., SAR threshold), first calculate the amount of SAR values that can be occupied by other transmitters, and then determine the maximum transmit power of other transmitters according to the allocated amount of SAR values. If the number of the other transmitters is multiple, the multiple other transmitters can also be dynamically adjusted by adopting the method in the embodiment of the application. The embodiment of the present application does not limit this.

Examples of the methods provided herein are described in detail above. It is understood that the corresponding apparatus contains hardware structures and/or software modules corresponding to the respective functions for implementing the functions described above. Those of skill in the art would readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

The present application may perform the division of the functional modules according to the above method examples for the apparatus for determining the maximum transmission power of the transmitter in the multi-transmitter scenario, for example, each function may be divided into each functional module, or two or more functions may be integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. It should be noted that, the division of the modules in the present application is schematic, and is only a logical function division, and there may be another division manner in actual implementation.

Fig. 9 is a schematic structural diagram illustrating an apparatus 900 for determining a maximum transmission power of a transmitter in a multi-transmitter scenario provided in the present application. The apparatus 900 comprises:

an obtaining module 901, configured to obtain a current transmission power of a first transmitter;

a first determining module 902, configured to determine a second target gear of a second transmitter according to a first target gear corresponding to the current transmission power and a preset gear correspondence relationship, where the gear correspondence relationship includes a one-to-one correspondence relationship between a plurality of first gears and a plurality of second gears, the plurality of first gears are a plurality of gears to which the transmission power of the first transmitter is distributed, the plurality of second gears are a plurality of gears to which the transmission power of the second transmitter is distributed, in the gear correspondence relationship, a sum of electromagnetic radiation Specific Absorption Rate (SAR) values of any two first gears and second gears having a correspondence relationship is less than or equal to a SAR threshold, the first target gear is one of the plurality of first gears, and the second target gear is one of the plurality of second gears;

a second determining module 903, configured to determine a maximum transmission power of the second transmitter according to the second target gear.

Optionally, the obtaining module 901 is specifically configured to determine whether the first transmitter and the second transmitter are in a simultaneous transmission state; and if so, acquiring the current transmitting power of the first transmitter.

A first determining module 902, further configured to determine a first candidate gear from the plurality of first gears, where the first candidate gear is one of the plurality of first gears with a smallest SAR value; determining the first candidate gear as the first target gear when the current transmission power is less than or equal to the maximum power of the first candidate gear; determining a second candidate gear from the plurality of first gears when the current transmit power is greater than the maximum power of the first candidate gear, the second candidate gear being one of the plurality of first gears having a SAR value closest to the SAR value of the first candidate gear, and the SAR value of the second candidate gear being greater than the SAR value of the first candidate gear; determining the second candidate gear as the first target gear when the current transmission power is less than or equal to the maximum power of the second candidate gear; determining the first target gear from the remaining first gears of the plurality of first gears when the current transmission power is greater than the maximum power of the second candidate gear.

For a specific manner of the apparatus 900 for executing the method for determining the maximum transmission power of a transmitter in a multi-transmitter scenario and beneficial effects thereof, reference may be made to relevant descriptions in the method embodiments, and details are not repeated here.

The embodiment of the application also provides electronic equipment which comprises the processor. The electronic device provided in this embodiment may be the terminal device 100 shown in fig. 1, and is configured to execute the method for determining the maximum transmission power of the transmitter in the multi-transmitter scenario. In case of an integrated unit, the terminal device may comprise a processing module, a storage module and a communication module. The processing module may be configured to control and manage actions of the terminal device, and for example, may be configured to support the terminal device to execute steps executed by the display unit, the detection unit, and the processing unit. The memory module may be used to support the terminal device in executing stored program codes and data, etc. And the communication module can be used for supporting the communication between the terminal equipment and other equipment.

The processing module may be a processor or a controller. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. A processor may also be a combination of computing functions, e.g., a combination of one or more microprocessors, a Digital Signal Processing (DSP) and a microprocessor, or the like. The storage module may be a memory. The communication module may specifically be a radio frequency circuit, a bluetooth chip, a Wi-Fi chip, or other devices that interact with other terminal devices.

In an embodiment, when the processing module is a processor and the storage module is a memory, the terminal device according to this embodiment may be a device having the structure shown in fig. 1.

An embodiment of the present application further provides a computer-readable storage medium, in which a computer program is stored, and when the computer program is executed by a processor, the processor is enabled to execute the method for determining the maximum transmission power of the transmitter in the multi-transmitter scenario described in any of the foregoing embodiments.

The embodiments of the present application further provide a computer program product, which when running on a computer, causes the computer to execute the above related steps to implement the method for determining the maximum transmission power of the transmitter in the multi-transmitter scenario in the above embodiments.

The electronic device, the computer-readable storage medium, the computer program product, or the chip provided in this embodiment are all configured to execute the corresponding method provided above, so that the beneficial effects achieved by the electronic device, the computer-readable storage medium, the computer program product, or the chip may refer to the beneficial effects in the corresponding method provided above, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, a module or a unit may be divided into only one logic function, and may be implemented in other ways, for example, a plurality of units or components may be combined or integrated into another apparatus, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

Units described as separate parts may or may not be physically separate, and parts displayed as units may be one physical unit or a plurality of physical units, may be located in one place, or may be distributed to a plurality of different places. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application may be essentially or partially contributed to by the prior art, or all or part of the technical solutions may be embodied in the form of a software product, where the software product is stored in a storage medium and includes several instructions to enable a device (which may be a single chip, a chip, or the like) or a processor (processor) to execute all or part of the steps of the methods of the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method for determining a maximum transmit power of a transmitter in a multi-transmitter scenario, comprising:

acquiring the current transmitting power of a first transmitter;

determining a second target gear of a second transmitter according to a first target gear corresponding to the current transmission power and a preset gear corresponding relationship, wherein the gear corresponding relationship comprises a one-to-one corresponding relationship of a plurality of first gears and a plurality of second gears, the plurality of first gears are a plurality of gears distributed by the transmission power of the first transmitter, the plurality of second gears are a plurality of gears distributed by the transmission power of the second transmitter, in the gear corresponding relationship, the sum of electromagnetic radiation ratio absorption rate (SAR) values of any two first gears and any two second gears with corresponding relationship is less than or equal to an SAR threshold value, the first target gear is one of the plurality of first gears, and the second target gear is one of the plurality of second gears;

and determining the maximum transmission power of the second transmitter according to the second target gear.

2. The method according to claim 1, wherein the first gears are sequentially arranged according to a sequence of transmission power from low to high, the second gears are sequentially arranged according to a sequence of transmission power from low to high, the number of the first gears and the number of the second gears are both M, where M is a natural number greater than or equal to 3, and the gear correspondence relationship includes:

3. The method of claim 1 or 2, wherein obtaining the current transmit power of the first transmitter comprises:

determining whether the first transmitter and the second transmitter are in a simultaneous transmission state;

and if so, acquiring the current transmitting power of the first transmitter.

4. The method according to any one of claims 1 to 3, wherein before determining the second target gear of the second transmitter according to the first target gear corresponding to the current transmission power and the preset gear corresponding relationship, the method further comprises:

determining a first candidate gear from the plurality of first gears, the first candidate gear being one of the plurality of first gears having a smallest SAR value;

determining the first candidate gear as the first target gear when the current transmission power is less than or equal to the maximum power of the first candidate gear;

determining a second candidate gear from the plurality of first gears when the current transmit power is greater than the maximum power of the first candidate gear, the second candidate gear being one of the plurality of first gears having a SAR value closest to the SAR value of the first candidate gear, and the SAR value of the second candidate gear being greater than the SAR value of the first candidate gear;

determining the second candidate gear as the first target gear when the current transmission power is less than or equal to the maximum power of the second candidate gear;

determining the first target gear from the remaining first gears of the plurality of first gears when the current transmission power is greater than the maximum power of the second candidate gear.

5. The method according to any one of claims 1-4, characterized in that the number of first gears is three and the number of second gears is three.

6. The method of any one of claims 1-4, wherein the difference in SAR values for any two adjacent first gears is 0.05mW per gram and the difference in SAR values for any two adjacent second gears is 0.05mW per gram.

7. The method of any of claims 1 to 6, wherein the first transmitter is one of a transmitter of cellular mobile communication signals and a transmitter of Wi-Fi signals, and wherein the second transmitter is one of a transmitter of cellular mobile communication signals and a transmitter of Wi-Fi signals.

8. The method of claim 1, wherein the first transmitter comprises a first sub-transmitter and a second sub-transmitter, and wherein the current transmit power comprises: the first sub-transmission power of the first sub-transmitter at the current moment and the second sub-transmission power of the second sub-transmitter at the current moment are provided, the first target gear comprises a first sub-target gear and a second sub-target gear, the first sub-target gear is a gear corresponding to the first sub-transmission power, the second sub-target gear is a gear corresponding to the second sub-transmission power, and the SAR value of the first target gear is the sum of the SAR value of the first sub-target gear and the SAR value of the second sub-target gear.

9. The method of claim 8, wherein the first sub-transmitter is a fourth generation mobile communication technology 4G signal transmitter, the second sub-transmitter is a 5G signal transmitter, and the second transmitter is a Wi-Fi signal transmitter.

10. An apparatus for determining a maximum transmit power of a transmitter in a multi-transmitter scenario, comprising:

11. The device according to claim 10, wherein the plurality of first gears are sequentially arranged according to a sequence of transmission power from low to high, the plurality of second gears are sequentially arranged according to a sequence of transmission power from low to high, the number of the plurality of first gears and the number of the plurality of second gears are both M, where M is a natural number greater than or equal to 3, and the gear correspondence relationship includes:

12. An electronic device, comprising: a processor, a memory, and an interface;

the processor, the memory, and the interface cooperate to cause the electronic device to perform the method of any of claims 1-9.

13. A computer-readable storage medium, in which a computer program is stored which, when executed by a processor, causes the processor to carry out the method of any one of claims 1 to 9.

14. A computer program product, the computer program product comprising: computer program code which, when run on an electronic device, causes the electronic device to perform the method of any of claims 1 to 9.