CN114513221B - Electromagnetic wave absorption ratio adjusting method, device and terminal - Google Patents
Electromagnetic wave absorption ratio adjusting method, device and terminal Download PDFInfo
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- CN114513221B CN114513221B CN202111683226.2A CN202111683226A CN114513221B CN 114513221 B CN114513221 B CN 114513221B CN 202111683226 A CN202111683226 A CN 202111683226A CN 114513221 B CN114513221 B CN 114513221B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
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- H—ELECTRICITY
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- H04B17/10—Monitoring; Testing of transmitters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/15—Performance testing
- H04B17/19—Self-testing arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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Abstract
The application discloses a method, a device and a terminal for adjusting an electromagnetic wave absorption ratio, and belongs to the technical field of electronics. The electromagnetic wave absorption ratio adjusting method comprises the following steps: under the condition that the signal transmission is carried out at the maximum transmission power in the target frequency band, the actual electromagnetic wave absorption ratio of the terminal is obtained; acquiring a preset target antenna time slot duty ratio combination under the condition that the actual electromagnetic wave absorption ratio is larger than an electromagnetic wave absorption ratio threshold value, and when each antenna of the terminal performs signal transmission by the target antenna time slot duty ratio combination, the actual electromagnetic wave absorption ratio of the terminal is smaller than the electromagnetic wave absorption ratio threshold value; and adjusting the time slot ratio of each antenna of the terminal according to the target antenna time slot ratio combination.
Description
Technical Field
The application belongs to the technical field of electronics, and particularly relates to a method, a device and a terminal for adjusting an electromagnetic wave absorption ratio.
Background
With the development of mobile communication technology, the maximum transmission power of signal transmission of a mobile terminal is increasing. However, in the communication process of the mobile terminal, electromagnetic radiation is inevitably generated, and the human body is influenced. The higher the signal transmitting power of the terminal, the stronger the intensity of electromagnetic radiation generated by the terminal. In order to evaluate the influence degree of electromagnetic radiation of a mobile terminal on a human body, an index of specific absorption rate, also called electromagnetic absorption ratio (Specific Absorption Rate, SAR), is introduced in the industry. SAR refers to the electromagnetic wave energy absorption ratio of a cell phone or wireless product, which is defined as: under the action of the external electromagnetic field, an induced electromagnetic field is generated in the human body. Since various organs of the human body are consumable media, in vivo electromagnetic fields will generate current, resulting in absorption and dissipation of electromagnetic energy. SAR is the electromagnetic power absorbed or consumed by human tissue per unit mass, and the unit is W/kg.
Currently, a SAR sensor is generally installed on a mobile terminal to detect a SAR value of the mobile terminal. When the SAR value of the mobile terminal is detected to be larger than 1.6, the purpose of reducing the SAR of the mobile terminal is achieved by reducing the signal transmitting power of the mobile terminal.
However, the communication quality of the mobile terminal is directly affected by the magnitude of the signal transmission power of the mobile terminal. Therefore, by reducing the signal transmission power of the mobile terminal to reduce the SAR of the mobile terminal, the communication quality of the mobile terminal is easily reduced, and the core function of the mobile terminal is affected. Thus, this way of adjusting the SAR of a mobile terminal is less effective.
Disclosure of Invention
The embodiment of the application aims to provide a method, a device and a terminal for adjusting an electromagnetic wave absorption ratio, which can solve the problem that the continuous operation of a modem for a long time affects the cruising ability of a small-size intelligent terminal.
In order to solve the technical problems, the application is realized as follows:
in a first aspect, an embodiment of the present application provides a method for adjusting an electromagnetic wave absorption ratio, including:
under the condition that the signal transmission is carried out at the maximum transmission power in the target frequency band, the actual electromagnetic wave absorption ratio of the terminal is obtained;
Acquiring a preset target antenna time slot duty ratio combination under the condition that the actual electromagnetic wave absorption ratio is larger than an electromagnetic wave absorption ratio threshold value, and when each antenna of the terminal performs signal transmission by the target antenna time slot duty ratio combination, the actual electromagnetic wave absorption ratio of the terminal is smaller than the electromagnetic wave absorption ratio threshold value;
And adjusting the time slot ratio of each antenna of the terminal according to the target antenna time slot ratio combination.
Optionally, the adjusting the time slot ratio of each antenna of the terminal according to the target antenna time slot ratio combination includes:
When a plurality of target antenna time slot ratio combinations exist, acquiring a first electromagnetic wave absorption ratio corresponding to each preset target antenna time slot ratio combination, wherein the first electromagnetic wave absorption ratio is as follows: the actual electromagnetic wave absorption ratio of the terminal when each antenna of the terminal performs signal transmission according to the target antenna time slot ratio combination;
And adjusting the time slot ratio of each antenna of the terminal according to the corresponding target antenna time slot ratio combination with the minimum first electromagnetic wave absorption ratio.
Optionally, before the acquiring the preset target antenna time slot duty ratio combination, the method further includes:
performing signal transmission test on each antenna at the same transmission power in a target frequency band to obtain a second electromagnetic wave absorption ratio of each antenna;
At least one antenna of at least two antennas of the terminal is combined according to different time slot duty ratios to obtain a plurality of groups of antenna time slot duty ratio combinations;
Calculating a first electromagnetic wave absorption ratio corresponding to the antenna time slot duty ratio combination based on the time slot duty ratio of the antenna time slot duty ratio combination and the second electromagnetic wave absorption ratio;
and under the condition that the first electromagnetic wave absorption ratio meets the performance requirement, taking the antenna time slot ratio combination as the target antenna time slot ratio combination.
Optionally, the calculating, based on the time slot duty ratio of the antenna time slot duty ratio combination and the second electromagnetic wave absorption ratio, a first electromagnetic wave absorption ratio corresponding to the antenna time slot duty ratio combination includes:
and calculating the first electromagnetic wave absorption ratio based on the second electromagnetic wave absorption ratio of the antenna in the antenna time slot ratio combination, the time slot ratio and the total time slots of the target frequency band.
Optionally, the calculating the first electromagnetic wave absorption ratio based on the second electromagnetic wave absorption ratio of the antenna in the antenna time slot ratio combination, the time slot ratio, and the total number of time slots of the target frequency band includes:
And summing products between the second electromagnetic wave absorption ratio and the time slot ratio of each antenna in the antenna time slot ratio combination, and taking the ratio of the sum of the products to the total number of the time slots as the first electromagnetic wave absorption ratio.
Optionally, before the antenna time slot duty ratio combination is used as the target antenna time slot duty ratio combination, in the case that the first electromagnetic wave absorption ratio meets the performance requirement, the method further includes:
And when the first electromagnetic wave absorption ratio is in a preset electromagnetic wave absorption ratio range, determining that the candidate first electromagnetic wave absorption ratio meets the performance requirement.
Optionally, the step of using the antenna time slot duty ratio combination as a target antenna time slot duty ratio combination includes:
Adjusting the duty ratio of the working time slots of each antenna to the time slot duty ratio of the antenna time slot duty ratio combination;
performing signal transmission test at the maximum transmission power in the target frequency band to obtain a first electromagnetic wave absorption ratio of the antenna time slot duty ratio combination;
And taking the antenna time slot ratio combination as a target antenna time slot ratio combination under the condition that the first electromagnetic wave absorption ratio meets the performance requirement.
In a second aspect, an embodiment of the present application provides an electromagnetic wave absorption ratio adjustment apparatus, the apparatus including:
The acquisition module is used for acquiring the actual electromagnetic wave absorption ratio of the terminal under the condition that the signal transmission is carried out at the maximum transmission power in the target frequency band; the method is also used for acquiring a preset target antenna time slot duty ratio combination under the condition that the actual electromagnetic wave absorption ratio is larger than an electromagnetic wave absorption ratio threshold value, and when each antenna of the terminal transmits signals according to the target antenna time slot duty ratio combination, the actual electromagnetic wave absorption ratio of the terminal is smaller than the electromagnetic wave absorption ratio threshold value;
And the adjusting module is used for adjusting the time slot ratio of each antenna of the terminal according to the target antenna time slot ratio combination.
In a third aspect, an embodiment of the present application provides a terminal comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, the program or instruction implementing the steps of the method according to the first aspect when executed by the processor.
In a fourth aspect, embodiments of the present application provide a readable storage medium having stored thereon a program or instructions which when executed by a processor perform the steps of the method according to the first aspect.
In a fifth aspect, an embodiment of the present application provides a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and where the processor is configured to execute a program or instructions to implement a method according to the first aspect.
In the embodiment of the application, the actual electromagnetic wave absorption ratio of the terminal is obtained under the condition that the signal transmission is carried out at the maximum transmission power in the target frequency band, so that the time slot ratio of each antenna of the terminal is adjusted according to the preset time slot ratio combination of the target antenna under the condition that the actual electromagnetic wave absorption ratio is determined to be larger than the electromagnetic wave absorption ratio threshold value. When each antenna of the terminal performs signal transmission with the target antenna time slot ratio combination, the actual electromagnetic wave absorption ratio of the terminal is smaller than the electromagnetic wave absorption ratio threshold value. According to the technical scheme, the terminal can enable the electromagnetic wave absorption ratio of the terminal to meet the performance requirement and the regulation requirement by adjusting the time slot ratio of the transmitting signal at each antenna of the terminal during signal transmission. Compared with the related art, the method has the advantages that the transmission frequency of the terminal does not need to be adjusted, so that the communication quality of the terminal is not greatly affected, the performance of the core function of the terminal is guaranteed, and the electromagnetic wave absorption ratio of the terminal is better in adjusting effect.
Drawings
Fig. 1 is a schematic structural diagram of a terminal according to an embodiment of the present application.
Fig. 2 is a flowchart of an electromagnetic wave absorption ratio adjusting method according to an embodiment of the present application.
Fig. 3 is a flowchart of another electromagnetic wave absorption ratio adjusting method according to an embodiment of the present application.
Fig. 4 is a flowchart of a method for determining a target antenna slot ratio combination according to an embodiment of the present application.
Fig. 5 is a flowchart of still another electromagnetic wave absorption ratio adjusting method according to an embodiment of the present application.
Fig. 6 is a block diagram of an electromagnetic wave absorption ratio adjusting apparatus according to an embodiment of the present application.
Fig. 7 is a block diagram of a terminal according to an embodiment of the present application.
Fig. 8 is a schematic diagram of a hardware structure of a terminal according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type, and are not limited to the number of objects, such as the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.
The electromagnetic wave absorption ratio adjusting method provided by the embodiment of the application is described in detail below through specific embodiments and application scenes thereof with reference to the accompanying drawings.
Referring to fig. 1, a schematic structural diagram of a terminal according to an embodiment of the present application is shown. As shown in fig. 1, the signal transmitting part of the terminal may include: a radio frequency transceiver 101, A diplexer integrated power amplifier module (Power Amplifier Module WITH INTEGRATED duplex, PAMiD) 102, and an antenna selection switch 103, and four antennas (ANT 1-ANT4, 104A-104D).
The radio frequency transceiver 101 is configured to generate a transmission signal of the terminal, and transmit the transmission signal to PAMiD102,102. The radio frequency transceiver 101 is also configured to receive PAMiD a received signal transmitted by the transmitter 102. PAMiD102 is used for adjusting the time slot ratio of the transmission signal between the four antennas and transmitting the adjusted transmission signal to the antenna selection switch 103. The antenna selection switch 103 is used to select an antenna to transmit a signal and transmit the signal to the selected antenna. It should be noted that the number of antennas of the terminal may be at least two, and in the embodiment of the present application, fig. 1 is illustrated by taking a 1T4R antenna, that is, four antennas are included as an example. In practical applications, the terminal where the terminal signal transmitting part is located may be a terminal supporting 5G NR (a global 5G standard).
Referring to fig. 2, a flowchart of an electromagnetic wave absorption ratio adjusting method according to an embodiment of the application is shown. The electromagnetic wave absorption ratio adjustment method can be applied to the terminal shown in fig. 1. As shown in fig. 2, the electromagnetic wave absorption ratio adjustment method includes:
Step 201, acquiring the actual electromagnetic wave absorption ratio of the terminal under the condition that the target frequency band transmits signals with the maximum transmission power.
In the embodiment of the present application, the target frequency band may be an NR TDD frequency band. Since the terminal performs signal transmission at the maximum transmission power in the target frequency band, there may be a probability that the actual electromagnetic wave absorption ratio of the terminal is greater than the electromagnetic wave absorption ratio threshold. Therefore, under the condition that the terminal transmits signals with the maximum transmitting power in the target frequency band, the actual electromagnetic wave absorption ratio of the terminal can be obtained in real time to detect the actual electromagnetic wave absorption ratio of the terminal, so that the actual electromagnetic wave absorption ratio of the terminal can be adjusted in time under the condition that the actual electromagnetic wave absorption ratio of the terminal is larger than the electromagnetic wave absorption ratio threshold value based on subsequent operation.
Step 202, under the condition that the actual electromagnetic wave absorption ratio of the terminal is larger than an electromagnetic wave absorption ratio threshold value, acquiring a preset target antenna time slot duty ratio combination. When each antenna of the terminal performs signal transmission with the target antenna time slot ratio combination, the actual electromagnetic wave absorption ratio of the terminal is smaller than the electromagnetic wave absorption ratio threshold value.
In the embodiment of the application, the terminal can judge whether the actual electromagnetic wave absorption ratio of the terminal is larger than the electromagnetic wave absorption ratio threshold value. In the case where the actual electromagnetic wave absorption ratio of the terminal is less than or equal to the electromagnetic wave absorption ratio threshold value, the terminal may not perform any processing operation. And under the condition that the actual electromagnetic wave absorption ratio of the terminal is larger than the electromagnetic wave absorption ratio threshold value, the terminal acquires a preset target antenna time slot duty ratio combination. Alternatively, the time slot ratio of each antenna in the preset target antenna time slot ratio combination may be the current time slot ratio of each antenna of the terminal when the actual electromagnetic wave absorption ratio of the terminal is detected to be smaller than the electromagnetic wave absorption ratio threshold value in the terminal test stage. Or the target antenna slot duty cycle combination may be determined in other ways.
Alternatively, the electromagnetic wave absorption ratio threshold may be a regulation value of 1.6. The terminal can determine whether its actual electromagnetic wave absorption ratio exceeds a regulation value. When the actual electromagnetic wave absorption ratio of the terminal is larger than the electromagnetic wave absorption ratio threshold value, the current actual electromagnetic wave absorption ratio of the terminal exceeds the regulation value. The terminal can acquire a preset target antenna time slot duty ratio combination so as to adjust the time slot duty ratio of each antenna of the terminal according to the target antenna time slot duty ratio combination, so that each antenna of the terminal can transmit signals with maximum transmitting power according to the target antenna time slot duty ratio combination. And when the actual electromagnetic wave absorption ratio of the terminal is smaller than or equal to the electromagnetic wave absorption ratio threshold value, indicating that the current actual electromagnetic wave absorption ratio of the terminal does not exceed the regulation value. The terminal may not perform the operation of acquiring the preset target antenna slot duty cycle combination.
Step 203, the time slot ratio of each antenna of the terminal is adjusted according to the target antenna time slot ratio combination.
In the embodiment of the application, the terminal can adjust the time slot ratio of each antenna to the time slot ratio of the corresponding antenna in the target antenna time slot ratio combination, so that each antenna of the terminal can transmit signals with maximum transmitting power according to the target antenna time slot ratio combination.
Wherein the number of target antenna slot duty cycle combinations may be one or more. The terminal may directly adjust the slot ratio of each antenna of the terminal according to the target antenna slot ratio combination in the case that the number of the target antenna slot ratio combinations is one. In the case that the number of the target antenna slot ratio combinations is plural, the process of the terminal adjusting the slot ratio of each antenna of the terminal according to the target antenna slot ratio combinations may include:
When a plurality of target antenna time slot ratio combinations exist, acquiring a first electromagnetic wave absorption ratio corresponding to each preset target antenna time slot ratio combination, wherein the first electromagnetic wave absorption ratio is as follows: the actual electromagnetic wave absorption ratio of the terminal when the antennas of the terminal transmit signals in the target antenna time slot ratio combination. And adjusting the time slot duty ratio of each antenna of the terminal according to the corresponding target antenna time slot duty ratio combination with the minimum first electromagnetic wave absorption ratio.
In the embodiment of the application, the terminal stores each target antenna time slot ratio combination and the first electromagnetic wave absorption ratio corresponding to the target antenna time slot ratio combination. When there are multiple target antenna time slot ratio combinations, the terminal can compare the obtained first electromagnetic wave absorption ratios corresponding to the target antenna time slot ratio combinations, select the target antenna time slot ratio combination with the minimum first electromagnetic wave absorption ratio, and adjust the time slot ratio of each antenna of the terminal.
For example, taking the target frequency band as the NR TDD frequency band and taking the performance requirement as not exceeding the regulation value of 1.6 as an example, the process of adjusting the signal transmission process of the terminal according to the target antenna time slot ratio combination is further described when the terminal transmits the signal with the maximum transmission power in the target frequency band and the actual electromagnetic wave absorption ratio of the terminal is greater than the electromagnetic wave absorption ratio threshold. As shown in fig. 3, the terminal may first determine whether its operating frequency band is in the NR TDD frequency band. When the working frequency band of the terminal is not in the NR TDD frequency band, the terminal does not execute the operation, and the method provided by the embodiment of the application is executed as a result.
And when the working frequency band is in the NR TDD frequency band, the terminal judges whether the terminal adopts the maximum transmitting power to transmit signals. When the terminal does not adopt the maximum transmitting power to transmit signals, the electromagnetic wave absorption ratio of the terminal can be considered not to exceed the regulated value of 1.6, and the terminal can not execute the operation and end executing the method provided by the embodiment of the application.
When the terminal adopts the maximum transmitting power to transmit signals, the terminal judges whether the current actual electromagnetic wave absorption ratio exceeds the regulation value. And when the current actual electromagnetic wave absorption ratio of the terminal does not exceed the regulated value, the terminal does not execute the operation, and the execution of the method provided by the embodiment of the application is finished.
And when the current actual electromagnetic wave absorption ratio of the terminal exceeds the regulated value, adjusting the signal transmitting process of the terminal according to the target antenna time slot ratio combination.
In the embodiment of the application, the actual electromagnetic wave absorption ratio of the terminal is obtained under the condition that the signal transmission is carried out at the maximum transmission power in the target frequency band, so that the time slot ratio of each antenna of the terminal is adjusted according to the preset time slot ratio combination of the target antenna under the condition that the actual electromagnetic wave absorption ratio is determined to be larger than the electromagnetic wave absorption ratio threshold value. When each antenna of the terminal performs signal transmission with the target antenna time slot ratio combination, the actual electromagnetic wave absorption ratio of the terminal is smaller than the electromagnetic wave absorption ratio threshold value. According to the technical scheme, the terminal can enable the electromagnetic wave absorption ratio of the terminal to meet the performance requirement and the regulation requirement by adjusting the time slot ratio of the transmitting signal at each antenna of the terminal during signal transmission. Compared with the related art, the method has the advantages that the transmission frequency of the terminal does not need to be adjusted, so that the communication quality of the terminal is not greatly affected, the performance of the core function of the terminal is guaranteed, and the electromagnetic wave absorption ratio of the terminal is better in adjusting effect.
Optionally, before the terminal obtains the preset target antenna time slot duty ratio combination, the terminal may further perform a process of determining the target antenna time slot duty ratio combination. The following steps 401 to 304 are used to further describe the determining process of the target antenna slot ratio combination in the embodiment of the present application. Then prior to step 201, the method further comprises, as shown in fig. 4:
and 401, performing signal transmission test on each antenna at the same transmission power in the target frequency band, and obtaining a second electromagnetic wave absorption ratio of each antenna.
In the embodiment of the application, the terminal can lock the target emission signal to each antenna for signal emission test so as to obtain the second electromagnetic wave absorption ratio corresponding to each antenna. The target transmission signal is a transmission signal with the same transmission power in the target frequency band. That is, the terminal transmits the target transmission signal by using each single antenna of the at least two antennas included in the terminal, and obtains the third electromagnetic wave absorption ratio of the terminal during transmission as the second electromagnetic wave absorption ratio corresponding to the single antenna. And because of the difference of the radio frequency path insertion loss and the antenna efficiency, generating a target transmission signal by adopting each antenna with the same transmission power, and measuring the third electromagnetic wave absorption ratio to be different. Generally, the better the antenna efficiency is, the higher the radiation efficiency of the antenna is, and the electromagnetic wave absorption ratio of the terminal is easy to exceed the standard. On the contrary, the worse the antenna efficiency is, the lower the radiation efficiency of the antenna is, and the electromagnetic wave absorption ratio of the terminal is not easy to exceed the standard.
Alternatively, the target frequency band may be an NR TDD frequency band, or may also be an NR FDD frequency band. The transmit power of the target transmit signal may be a maximum transmit power of the terminal.
By way of example, taking the terminal shown in fig. 1 as an example, signal transmission tests are performed on the antenna ANT1, the antenna ANT2, the antenna ANT3 and the antenna ANT4 in the terminal at maximum transmission power in the NR FDD frequency band, respectively, to obtain a second electromagnetic wave absorption ratio of 2 for the antenna ANT1, a second electromagnetic wave absorption ratio of 1.8 for the antenna ANT2, a second electromagnetic wave absorption ratio of 1.4 for the antenna ANT3, and a second electromagnetic wave absorption ratio of 1.2 for the antenna ANT 4. The second electromagnetic wave absorption ratio of the antenna ANT1 and the second electromagnetic wave absorption ratio of the antenna ANT2 are both larger than 1.6, and the electromagnetic wave absorption ratio exceeds the standard. The second electromagnetic wave absorption ratio of the antenna ANT3 and the second electromagnetic wave absorption ratio of the antenna ANT4 are both smaller than 1.6, and the electromagnetic wave absorption ratio is qualified.
Step 402, at least one antenna of at least two antennas of the terminal is combined according to different time slot duty ratios, and a plurality of groups of antenna time slot duty ratio combinations are obtained.
In the embodiment of the application, the time slot ratio of each antenna of the terminal in any one of the plurality of groups of antenna time slot ratio combinations can be different.
For example, the target frequency band is the NR TDD frequency band, that is, one data frame includes 10 slots, and the terminal is illustrated as the terminal shown in fig. 1. Assume that the slot ratios of ANT1, ANT2, ANT3, ANT4 are x, y, m, n, respectively. X+y+m+n=10. The terminal combines at least one antenna of the four antennas according to different time slot duty ratios to obtain each group of antenna time slot duty ratio combinations shown in table 1. Table 1 is a table of time slot duty cycles corresponding to each set of antenna duty cycle components.
As shown in table 1, the antenna states: "single antenna state", and group 1 to group 4 antenna slot duty cycle combinations belonging to a single antenna state. Group 1: the time slot ratios of the antenna ANT1, the antenna ANT2, the antenna ANT3 and the antenna ANT4 are as follows: 10. 0, 0. Group 2: the time slot ratios of the antenna ANT1, the antenna ANT2, the antenna ANT3 and the antenna ANT4 are as follows: 0. 10, 0... fifth group: the time slot ratios of the antenna ANT1, the antenna ANT2, the antenna ANT3 and the antenna ANT4 are as follows: 9.1, 0. Sixth group: the time slot ratios of the antenna ANT1, the antenna ANT2, the antenna ANT3 and the antenna ANT4 are as follows: 8. 1, 0.
TABLE 1
Step 403, calculating a third electromagnetic wave absorption ratio corresponding to the antenna time slot ratio combination based on the time slot ratio of the antenna time slot ratio combination and the second electromagnetic wave absorption ratio.
In the embodiment of the application, the terminal calculates a third electromagnetic wave absorption ratio corresponding to each antenna time slot ratio combination based on the sum of the second electromagnetic wave absorption ratio and the time slot ratio of the antenna time slot ratio combination. The third electromagnetic wave absorption ratio corresponding to the antenna time slot ratio combination is as follows: when the terminal transmits signals with maximum transmission power according to the time slot ratio of each antenna in the antenna time slot ratio combination, the electromagnetic wave absorption ratio of the terminal is theoretically calculated.
Optionally, for each antenna slot ratio combination, the process of calculating, by the terminal, a third electromagnetic wave absorption ratio corresponding to the antenna slot ratio combination based on the slot ratio of the antenna slot ratio combination and the second electromagnetic wave absorption ratio may include: and calculating a third electromagnetic wave absorption ratio of the antenna time slot ratio combination based on the second electromagnetic wave absorption ratio of the antenna in the antenna time slot ratio combination, the time slot ratio and the total number of time slots of the frequency band of the signal transmission test. The third electromagnetic wave absorption ratio of the antenna time slot ratio combination is in direct proportion to the time slot ratio of each antenna in the antenna time slot ratio combination.
For example, for each antenna slot ratio combination, the process of calculating the third electromagnetic wave absorption ratio by the terminal based on the second electromagnetic wave absorption ratio of the antenna, the slot ratio, and the total number of slots of the frequency band of the signal transmission test in the antenna slot ratio combination may include:
and taking the ratio of the sum of products and the total number of time slots as a third electromagnetic wave absorption ratio of the antenna time slot ratio combination after summing the products of the second electromagnetic wave absorption ratio of each antenna and the time slot ratio in the antenna time slot ratio combination.
That is, the third electromagnetic wave absorption ratio SAR Theoretical of the antenna slot ratio combination satisfies:
Wherein SAR Theoretical is the third electromagnetic wave absorption ratio. Q is the total number of antennas comprised by the terminal. SARi is the second electromagnetic wave absorption ratio of the ith antenna. B i is the slot ratio of the ith antenna. T is the total number of time slots of one data frame in the target frequency band.
For example, continuing with the examples in steps 201 and 202 described above, the third electromagnetic wave absorption ratio SAR Theoretical = (2×x+1.8×y+1.4×m+1.2×n)/10 of the antenna slot ratio combination; wherein SAR Theoretical is the third electromagnetic wave absorption ratio. x is the slot duty cycle of antenna ANT 1. y is the slot duty cycle of antenna ANT 2. z is the slot duty cycle of antenna ANT 3. n is the slot duty of the antenna ANT 43. The third electromagnetic wave absorption ratio corresponding to the group antenna time slot ratio combination is calculated for each group antenna time slot ratio combination shown in table 1, and is shown in the "SAR value" column in table 1. Wherein, the third electromagnetic wave absorption ratio corresponding to the 1 st group antenna time slot ratio combination is 2. The third electromagnetic wave absorption ratio corresponding to the group 2 antenna time slot ratio combination is 1.8.... Group 5 antenna slot ratio combination corresponds to a third electromagnetic wave absorption ratio of 1.98. The third electromagnetic wave absorption ratio corresponding to the 6 th group antenna time slot ratio combination is 2.... Group 12 antenna slot ratio combination corresponds to a third electromagnetic wave absorption ratio of 1.84. The third electromagnetic wave absorption ratio corresponding to the 13 th group antenna time slot ratio combination is 1.6. The third electromagnetic wave absorption ratio corresponding to the 14 th group antenna time slot ratio combination is 1.58. And the third electromagnetic wave absorption ratio corresponding to the 15 th group antenna time slot ratio combination is 1.56.
And step 404, taking the antenna time slot duty ratio combination as a target antenna time slot duty ratio combination when the third electromagnetic wave absorption ratio meets the performance requirement.
In the embodiment of the application, the performance requirement can be determined according to the relevant regulations of the electromagnetic wave absorption ratio of the terminal. The target antenna time slot duty cycle combination is used for the terminal to transmit signals with maximum transmission power according to the target antenna time slot duty cycle combination. The number of target antenna slot duty cycle combinations may be one or more.
Optionally, when the third electromagnetic wave absorption ratio is within the preset electromagnetic wave absorption ratio range, determining that the candidate third electromagnetic wave absorption ratio meets the performance requirement. Optionally, the terminal performs signal transmission with maximum transmission power according to the antenna time slot duty ratio combination corresponding to the third electromagnetic wave absorption ratio within the preset electromagnetic wave absorption ratio range, and the electromagnetic wave absorption ratio of the terminal does not exceed the regulation value. For example, the preset electromagnetic wave absorption ratio range is smaller than the regulation value. For example, less than 1.6.
Further optionally, the terminal performs signal transmission with maximum transmission power according to the antenna time slot duty ratio combination corresponding to the third electromagnetic wave absorption ratio within the preset electromagnetic wave absorption ratio range, the electromagnetic wave absorption ratio of the terminal does not exceed the regulation value, and the wireless radiation performance of the terminal is good. By way of example, the preset electromagnetic wave absorption ratio range is: [1.5,1.6].
The description will be continued by taking the example shown in table 1 as an example. The preset electromagnetic wave absorption ratio range is assumed to be: [1.5,1.6]. The third electromagnetic wave absorption ratios of the 5 th to 13 th groups in the antenna time slot ratio combinations in table 1 are all in the preset electromagnetic wave absorption ratio range, and the 5 th to 13 th groups are all used as target antenna time slot ratio combinations.
In order to facilitate clearer understanding of the influence of the antenna on the electromagnetic wave absorption ratio of the terminal under the time slot ratio. And respectively selecting the 1 st group and 14 th group antenna time slot duty ratio combinations in the table 1, so that the terminal respectively performs signal transmission of a target transmission signal according to the 1 st group and 14 th group antenna time slot duty ratio combinations and at the maximum transmission power, and testing the electromagnetic wave absorption ratio of the terminal under ten time slots (time slot 1 to time slot 10) in one data frame.
Through experimental measurement, the terminal performs signal transmission of the target transmission signal with the maximum transmission power according to the 1 st group of antenna time slot duty ratio combination, namely, the terminal locks the target transmission signal to the antenna ANT1 to perform signal transmission with the maximum transmission power. The electromagnetic wave absorption ratios of the terminals under the time slot 1 to the time slot 10 are respectively as follows: 2. 2, 22, 2 and 2. The average electromagnetic wave absorption ratio of the terminal is 2, which exceeds the regulation value of 1.6.
The terminal performs signal transmission of the target transmission signal with the maximum transmission power according to the 14 th group antenna time slot duty ratio combination, namely, the terminal adjusts the working time slot duty ratio of the antennas ANT1 to ANT4 to 2:3:2: and 3, carrying out signal transmission of the target transmission signal at the maximum transmission power. The electromagnetic wave absorption ratios of the terminals under the time slot 1 to the time slot 10 are respectively as follows: 2.2, 1.8, 1.4, 1.2 and 1.2. The average electromagnetic wave absorption ratio of the terminal is 1.58, which is lower than the regulation value of 1.6.
Based on the above, the terminal can effectively adjust the electromagnetic wave absorption ratio of the terminal by adjusting the time slot ratio of the transmission signal at each antenna of the terminal when the signal is transmitted. So that the electromagnetic wave absorption ratio of the terminal meets the regulation requirements.
Optionally, under the condition that the third electromagnetic wave absorption ratio meets the performance requirement, the terminal can further screen the antenna duty ratio component corresponding to the third electromagnetic wave absorption ratio meeting the performance requirement by judging whether the third electromagnetic wave absorption ratio meets the performance requirement or not when the terminal performs signal transmission of the target transmission signal with the maximum transmission power according to the antenna time slot duty ratio combination, so that the selection accuracy of the target antenna time slot duty ratio combination is further improved, and the electromagnetic wave absorption ratio of the terminal is further accurately adjusted. As shown in fig. 5, the process of the terminal taking the antenna slot duty ratio combination as the target antenna slot duty ratio combination may include:
Step 501, the duty ratio of each antenna is adjusted to the combined time slot duty ratio of the antenna time slot duty ratio.
In the embodiment of the application, the terminal can adjust the duty ratio of the working time slot of each antenna to the time slot duty ratio of the combination of the time slot duty ratios of the antennas in various modes. For example, the terminal may adjust the duty cycle of the operating time slots of the antennas through PAMiD.
Step 502, performing signal transmission test on the terminal at the target frequency band with the maximum transmission power, and obtaining a third electromagnetic wave absorption ratio of the antenna time slot ratio combination.
In the embodiment of the application, the terminal can transmit the target transmission signal by adopting the adjusted antennas so as to acquire the third electromagnetic wave absorption ratio of the terminal during transmission. The target transmission signal is a transmission signal with the same transmission power in the target frequency band.
In step 503, when the third electromagnetic wave absorption ratio meets the performance requirement, the antenna time slot duty ratio combination is used as the target antenna time slot duty ratio combination.
Alternatively, the performance requirement may be the same as the foregoing performance requirement, and when the third electromagnetic wave absorption ratio is within the preset electromagnetic wave absorption ratio range, it is determined that the third electromagnetic wave absorption ratio meets the performance requirement.
In the embodiment of the application, the actual electromagnetic wave absorption ratio of the terminal is obtained under the condition that the signal transmission is carried out at the maximum transmission power in the target frequency band, so that the time slot ratio of each antenna of the terminal is adjusted according to the preset time slot ratio combination of the target antenna under the condition that the actual electromagnetic wave absorption ratio is determined to be larger than the electromagnetic wave absorption ratio threshold value. When each antenna of the terminal performs signal transmission with the target antenna time slot ratio combination, the actual electromagnetic wave absorption ratio of the terminal is smaller than the electromagnetic wave absorption ratio threshold value. According to the technical scheme, the terminal can enable the electromagnetic wave absorption ratio of the terminal to meet the performance requirement and the regulation requirement by adjusting the time slot ratio of the transmitting signal at each antenna of the terminal during signal transmission. Compared with the related art, the method has the advantages that the transmission frequency of the terminal does not need to be adjusted, so that the communication quality of the terminal is not greatly affected, the performance of the core function of the terminal is guaranteed, and the electromagnetic wave absorption ratio of the terminal is better in adjusting effect.
It should be noted that, in the electromagnetic wave absorption ratio adjustment method provided in the embodiment of the present application, the execution body may be an electromagnetic wave absorption ratio adjustment device, or a control module of the electromagnetic wave absorption ratio adjustment device for executing the method of network connection. In the embodiment of the present application, a method for performing network connection by using an electromagnetic wave absorption ratio adjustment device is taken as an example, and the network connection device provided in the embodiment of the present application is described.
Referring to fig. 6, a block diagram of an electromagnetic wave absorption ratio adjusting device according to an embodiment of the application is shown. As shown in fig. 6, the electromagnetic wave absorption ratio adjustment device 600 includes: the acquisition module 601 and the adjustment module 602.
An acquiring module 601, configured to acquire an actual electromagnetic wave absorption ratio of a terminal when a target frequency band performs signal transmission with maximum transmission power; the method is also used for acquiring a preset target antenna time slot duty ratio combination under the condition that the actual electromagnetic wave absorption ratio is larger than an electromagnetic wave absorption ratio threshold value, and when each antenna of the terminal transmits signals according to the target antenna time slot duty ratio combination, the actual electromagnetic wave absorption ratio of the terminal is smaller than the electromagnetic wave absorption ratio threshold value;
An adjustment module 602, configured to adjust the time slot duty ratio of each antenna of the terminal according to the target antenna time slot duty ratio combination.
Optionally, the adjusting module 602 is further configured to:
When a plurality of target antenna time slot ratio combinations exist, acquiring a first electromagnetic wave absorption ratio corresponding to each preset target antenna time slot ratio combination, wherein the first electromagnetic wave absorption ratio is as follows: the actual electromagnetic wave absorption ratio of the terminal when each antenna of the terminal performs signal transmission according to the target antenna time slot ratio combination;
And adjusting the time slot ratio of each antenna of the terminal according to the corresponding target antenna time slot ratio combination with the minimum first electromagnetic wave absorption ratio.
Optionally, the apparatus further includes:
The test module is used for carrying out signal transmission test on each antenna in the target frequency band with the same transmission power, and obtaining a second electromagnetic wave absorption ratio of each antenna;
the combination module is used for combining at least one antenna of at least two antennas of the terminal according to different time slot duty ratios to obtain a plurality of groups of antenna time slot duty ratio combinations;
A calculating module, configured to calculate a third electromagnetic wave absorption ratio corresponding to the antenna time slot duty ratio combination based on the time slot duty ratio of the antenna time slot duty ratio combination and the second electromagnetic wave absorption ratio;
and the determining module is used for taking the antenna time slot duty ratio combination as the target antenna time slot duty ratio combination under the condition that the third electromagnetic wave absorption ratio meets the performance requirement.
Optionally, the computing module is further configured to: and calculating the third electromagnetic wave absorption ratio based on the second electromagnetic wave absorption ratio of the antenna in the antenna time slot ratio combination, the time slot ratio and the total time slots of the target frequency band.
Optionally, the computing module is further configured to:
And summing products between the second electromagnetic wave absorption ratio and the time slot ratio of each antenna in the antenna time slot ratio combination, and taking the ratio of the sum of the products to the total number of the time slots as the third electromagnetic wave absorption ratio.
The optional determining module is further configured to determine that the candidate third electromagnetic wave absorption ratio meets a performance requirement when the third electromagnetic wave absorption ratio is within a preset electromagnetic wave absorption ratio range.
Optionally, the determining module is further configured to:
Adjusting the duty ratio of the working time slots of each antenna to the time slot duty ratio of the antenna time slot duty ratio combination;
Performing signal transmission test at the maximum transmission power in the target frequency band to obtain a third electromagnetic wave absorption ratio of the antenna time slot ratio combination;
and taking the antenna time slot ratio combination as a target antenna time slot ratio combination under the condition that the third electromagnetic wave absorption ratio meets the performance requirement.
In the embodiment of the application, the actual electromagnetic wave absorption ratio of the terminal is obtained under the condition that the signal transmission is carried out at the maximum transmission power in the target frequency band, so that the time slot ratio of each antenna of the terminal is adjusted according to the preset time slot ratio combination of the target antenna under the condition that the actual electromagnetic wave absorption ratio is determined to be larger than the electromagnetic wave absorption ratio threshold value. When each antenna of the terminal performs signal transmission with the target antenna time slot ratio combination, the actual electromagnetic wave absorption ratio of the terminal is smaller than the electromagnetic wave absorption ratio threshold value. According to the technical scheme, the terminal can enable the electromagnetic wave absorption ratio of the terminal to meet the performance requirement and the regulation requirement by adjusting the time slot ratio of the transmitting signal at each antenna of the terminal during signal transmission. Compared with the related art, the method has the advantages that the transmission frequency of the terminal does not need to be adjusted, so that the communication quality of the terminal is not greatly affected, the performance of the core function of the terminal is guaranteed, and the electromagnetic wave absorption ratio of the terminal is better in adjusting effect.
The electromagnetic wave absorption ratio adjusting device in the embodiment of the application can be a device, and can also be a component, an integrated circuit or a chip in a terminal. The device may be a mobile terminal or a non-mobile terminal. By way of example, the mobile terminal may be a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, an ultra-mobile personal computer (UMPC), a netbook or a Personal Digital Assistant (PDA), etc., and the non-mobile terminal may be a server, a network attached storage (Network Attached Storage, NAS), a personal computer (personal computer, PC), a Television (TV), an automated teller machine or a self-service machine, etc., and the embodiments of the present application are not limited in particular.
The electromagnetic wave absorption ratio adjusting device in the embodiment of the application can be a device with an operating system. The operating system may be an Android operating system, an ios operating system, or other possible operating systems, and the embodiment of the present application is not limited specifically.
The electromagnetic wave absorption ratio adjusting device provided by the embodiment of the present application can implement each process implemented by the method embodiments of fig. 2 to fig. 4, and in order to avoid repetition, a detailed description is omitted here.
Optionally, as shown in fig. 7, the embodiment of the present application further provides a terminal 700, including a processor 701, a memory 702, and a program or an instruction stored in the memory 702 and capable of running on the processor 701, where the program or the instruction implements each process of the above embodiment of the electromagnetic wave absorption ratio adjustment method when executed by the processor 701, and the process can achieve the same technical effect, and for avoiding repetition, a description is omitted herein.
The terminal in the embodiment of the application includes the mobile terminal and the non-mobile terminal.
Fig. 8 is a schematic diagram of a hardware structure of a terminal for implementing an embodiment of the present application. The terminal 800 includes, but is not limited to: radio frequency unit 801, network module 802, audio output unit 803, input unit 804, sensor 805, display unit 806, user input unit 807, interface unit 808, memory 809, and processor 810.
Those skilled in the art will appreciate that the terminal 800 may further include a power source (e.g., a battery) for powering the various components, and that the power source may be logically coupled to the processor 810 by a power management system for performing functions such as managing charging, discharging, and power consumption by the power management system. The terminal structure shown in fig. 8 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, or may combine certain components, or may be arranged in different components, which will not be described in detail herein.
The processor 810 is configured to obtain an actual electromagnetic wave absorption ratio of the terminal when the target frequency band performs signal transmission with the maximum transmission power;
The processor 810 is further configured to obtain a preset target antenna time slot duty cycle combination when the actual electromagnetic wave absorption ratio is greater than an electromagnetic wave absorption ratio threshold, where the actual electromagnetic wave absorption ratio of the terminal is less than the electromagnetic wave absorption ratio threshold when each antenna of the terminal performs signal transmission with the target antenna time slot duty cycle combination;
The processor 810 is further configured to adjust a time slot duty cycle of each antenna of the terminal according to the target antenna time slot duty cycle combination.
In the embodiment of the application, the actual electromagnetic wave absorption ratio of the terminal is obtained under the condition that the signal transmission is carried out at the maximum transmission power in the target frequency band, so that the time slot ratio of each antenna of the terminal is adjusted according to the preset time slot ratio combination of the target antenna under the condition that the actual electromagnetic wave absorption ratio is determined to be larger than the electromagnetic wave absorption ratio threshold value. When each antenna of the terminal performs signal transmission with the target antenna time slot ratio combination, the actual electromagnetic wave absorption ratio of the terminal is smaller than the electromagnetic wave absorption ratio threshold value. According to the technical scheme, the terminal can enable the electromagnetic wave absorption ratio of the terminal to meet the performance requirement and the regulation requirement by adjusting the time slot ratio of the transmitting signal at each antenna of the terminal during signal transmission. Compared with the related art, the method has the advantages that the transmission frequency of the terminal does not need to be adjusted, so that the communication quality of the terminal is not greatly affected, the performance of the core function of the terminal is guaranteed, and the electromagnetic wave absorption ratio of the terminal is better in adjusting effect.
Optionally, the processor 810 is further configured to: when a plurality of target antenna time slot ratio combinations exist, acquiring a first electromagnetic wave absorption ratio corresponding to each preset target antenna time slot ratio combination, wherein the first electromagnetic wave absorption ratio is as follows: the actual electromagnetic wave absorption ratio of the terminal when each antenna of the terminal performs signal transmission according to the target antenna time slot ratio combination; and the time slot duty ratio of each antenna of the terminal is adjusted according to the corresponding target antenna time slot duty ratio combination with the minimum first electromagnetic wave absorption ratio.
Optionally, the processor 810 is further configured to:
performing signal transmission test on each antenna at the same transmission power in a target frequency band to obtain a second electromagnetic wave absorption ratio of each antenna;
At least one antenna of at least two antennas of the terminal is combined according to different time slot duty ratios to obtain a plurality of groups of antenna time slot duty ratio combinations;
Calculating a third electromagnetic wave absorption ratio corresponding to the antenna time slot duty ratio combination based on the time slot duty ratio of the antenna time slot duty ratio combination and the second electromagnetic wave absorption ratio;
And under the condition that the third electromagnetic wave absorption ratio meets the performance requirement, taking the antenna time slot ratio combination as the target antenna time slot ratio combination.
Optionally, the processor 810 is further configured to: and calculating the third electromagnetic wave absorption ratio based on the second electromagnetic wave absorption ratio of the antenna in the antenna time slot ratio combination, the time slot ratio and the total time slots of the target frequency band.
Optionally, the processor 810 is further configured to: and summing products between the second electromagnetic wave absorption ratio and the time slot ratio of each antenna in the antenna time slot ratio combination, and taking the ratio of the sum of the products to the total number of the time slots as the third electromagnetic wave absorption ratio.
Optionally, the processor 810 is further configured to: and when the third electromagnetic wave absorption ratio is in a preset electromagnetic wave absorption ratio range, determining that the candidate third electromagnetic wave absorption ratio meets the performance requirement.
Optionally, the processor 810 is further configured to:
Adjusting the duty ratio of the working time slots of each antenna to the time slot duty ratio of the antenna time slot duty ratio combination;
Performing signal transmission test at the maximum transmission power in the target frequency band to obtain a third electromagnetic wave absorption ratio of the antenna time slot ratio combination;
and taking the antenna time slot ratio combination as a target antenna time slot ratio combination under the condition that the third electromagnetic wave absorption ratio meets the performance requirement.
In the embodiment of the application, the actual electromagnetic wave absorption ratio of the terminal is obtained under the condition that the signal transmission is carried out at the maximum transmission power in the target frequency band, so that the time slot ratio of each antenna of the terminal is adjusted according to the preset time slot ratio combination of the target antenna under the condition that the actual electromagnetic wave absorption ratio is determined to be larger than the electromagnetic wave absorption ratio threshold value. When each antenna of the terminal performs signal transmission with the target antenna time slot ratio combination, the actual electromagnetic wave absorption ratio of the terminal is smaller than the electromagnetic wave absorption ratio threshold value. According to the technical scheme, the terminal can enable the electromagnetic wave absorption ratio of the terminal to meet the performance requirement and the regulation requirement by adjusting the time slot ratio of the transmitting signal at each antenna of the terminal during signal transmission. Compared with the related art, the method has the advantages that the transmission frequency of the terminal does not need to be adjusted, so that the communication quality of the terminal is not greatly affected, the performance of the core function of the terminal is guaranteed, and the electromagnetic wave absorption ratio of the terminal is better in adjusting effect.
It should be appreciated that in embodiments of the present application, the input unit 804 may include a graphics processor (Graphics Processing Unit, GPU) 8041 and a microphone 8042, with the graphics processor 8041 processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The display unit 806 may include a display panel 8061, and the display panel 8061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 807 includes a touch panel 8071 and other input devices 8072. Touch panel 8071, also referred to as a touch screen. The touch panel 8071 may include two parts, a touch detection device and a touch controller. Other input devices 8072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein. The memory 809 may be used to store software programs as well as various data including, but not limited to, application programs and an operating system. The processor 810 may integrate an application processor that primarily handles operating systems, user interfaces, applications, etc., with a modem processor that primarily handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 810.
The embodiment of the application also provides a readable storage medium, on which a program or an instruction is stored, which when executed by a processor, implements each process of the above-mentioned electromagnetic wave absorption ratio adjusting method embodiment, and can achieve the same technical effects, and in order to avoid repetition, the description is omitted here.
Wherein the processor is a processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium such as a read-only memory (ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.
The embodiment of the application further provides a chip, the chip comprises a processor and a communication interface, the communication interface is coupled with the processor, the processor is used for running a program or instructions, the processes of the electromagnetic wave absorption ratio adjusting method embodiment can be realized, the same technical effects can be achieved, and the repetition is avoided, and the description is omitted here.
It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, chip systems, or system-on-chip chips, etc.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present application.
The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.
Claims (10)
1. An electromagnetic wave absorption ratio adjustment method, characterized by comprising:
under the condition that the signal transmission is carried out at the maximum transmission power in the target frequency band, the actual electromagnetic wave absorption ratio of the terminal is obtained;
Acquiring a preset target antenna time slot duty ratio combination under the condition that the actual electromagnetic wave absorption ratio is larger than an electromagnetic wave absorption ratio threshold value, and when each antenna of the terminal performs signal transmission by the target antenna time slot duty ratio combination, the actual electromagnetic wave absorption ratio of the terminal is smaller than the electromagnetic wave absorption ratio threshold value;
The time slot duty ratio of each antenna of the terminal is adjusted according to the target antenna time slot duty ratio combination;
Wherein the time slot duty ratio of the antenna is the proportion of the working time slot of the antenna in the total working time slot.
2. The method of claim 1, wherein said adjusting the slot duty cycle of each antenna of the terminal in accordance with the target antenna slot duty cycle combination comprises:
When a plurality of target antenna time slot ratio combinations exist, acquiring a first electromagnetic wave absorption ratio corresponding to each preset target antenna time slot ratio combination, wherein the first electromagnetic wave absorption ratio is as follows: the actual electromagnetic wave absorption ratio of the terminal when each antenna of the terminal performs signal transmission according to the target antenna time slot ratio combination;
And adjusting the time slot ratio of each antenna of the terminal according to the corresponding target antenna time slot ratio combination with the minimum first electromagnetic wave absorption ratio.
3. The method of claim 1, wherein prior to the obtaining the preset target antenna slot duty cycle combination, the method further comprises:
performing signal transmission test on each antenna at the same transmission power in a target frequency band to obtain a second electromagnetic wave absorption ratio of each antenna;
At least one antenna of at least two antennas of the terminal is combined according to different time slot duty ratios to obtain a plurality of groups of antenna time slot duty ratio combinations;
Calculating a third electromagnetic wave absorption ratio corresponding to the antenna time slot duty ratio combination based on the time slot duty ratio of the antenna time slot duty ratio combination and the second electromagnetic wave absorption ratio;
And under the condition that the third electromagnetic wave absorption ratio meets the performance requirement, taking the antenna time slot ratio combination as the target antenna time slot ratio combination.
4. The method of claim 3, wherein the calculating a third electromagnetic wave absorption ratio corresponding to the antenna slot ratio combination based on the slot ratio of the antenna slot ratio combination and the second electromagnetic wave absorption ratio comprises:
And calculating the third electromagnetic wave absorption ratio based on the second electromagnetic wave absorption ratio of the antenna in the antenna time slot ratio combination, the time slot ratio and the total time slots of the target frequency band.
5. The method of claim 4, wherein the calculating the third electromagnetic wave absorption ratio based on the second electromagnetic wave absorption ratio of the antenna in the antenna slot ratio combination, the slot ratio, and the total number of slots of the target frequency band comprises:
And summing products between the second electromagnetic wave absorption ratio and the time slot ratio of each antenna in the antenna time slot ratio combination, and taking the ratio of the sum of the products to the total number of the time slots as the third electromagnetic wave absorption ratio.
6. A method according to claim 3, wherein, in the case where the third electromagnetic wave absorption ratio meets performance requirements, before taking the antenna slot ratio combination as a target antenna slot ratio combination, the method further comprises:
and when the third electromagnetic wave absorption ratio is in the preset electromagnetic wave absorption ratio range, determining that the candidate third electromagnetic wave absorption ratio meets the performance requirement.
7. The method of claim 3, wherein said combining the antenna slot duty cycle as a target antenna slot duty cycle combination comprises:
Adjusting the duty ratio of the working time slots of each antenna to the time slot duty ratio of the antenna time slot duty ratio combination;
Performing signal transmission test at the maximum transmission power in the target frequency band to obtain a third electromagnetic wave absorption ratio of the antenna time slot ratio combination;
and taking the antenna time slot ratio combination as a target antenna time slot ratio combination under the condition that the third electromagnetic wave absorption ratio meets the performance requirement.
8. An electromagnetic wave absorption ratio adjusting device, characterized by comprising:
The acquisition module is used for acquiring the actual electromagnetic wave absorption ratio of the terminal under the condition that the signal transmission is carried out at the maximum transmission power in the target frequency band; the method is also used for acquiring a preset target antenna time slot duty ratio combination under the condition that the actual electromagnetic wave absorption ratio is larger than an electromagnetic wave absorption ratio threshold value, and when each antenna of the terminal transmits signals according to the target antenna time slot duty ratio combination, the actual electromagnetic wave absorption ratio of the terminal is smaller than the electromagnetic wave absorption ratio threshold value;
The adjusting module is used for adjusting the time slot ratio of each antenna of the terminal according to the target antenna time slot ratio combination;
Wherein the time slot duty ratio of the antenna is the proportion of the working time slot of the antenna in the total working time slot.
9. A terminal comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, which when executed by the processor, implements the steps of the electromagnetic wave absorption ratio adjustment method according to any one of claims 1 to 7.
10. A readable storage medium, wherein a program or instructions is stored on the readable storage medium, which when executed by a processor, implements the steps of the electromagnetic wave absorption ratio adjustment method according to any one of claims 1 to 7.
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