CN111030717B - Radio frequency performance optimization method and wireless communication terminal - Google Patents
Radio frequency performance optimization method and wireless communication terminal Download PDFInfo
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- CN111030717B CN111030717B CN201911380418.9A CN201911380418A CN111030717B CN 111030717 B CN111030717 B CN 111030717B CN 201911380418 A CN201911380418 A CN 201911380418A CN 111030717 B CN111030717 B CN 111030717B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- 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
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3816—Mechanical arrangements for accommodating identification devices, e.g. cards or chips; with connectors for programming identification devices
- H04B1/3818—Arrangements for facilitating insertion or removal of identification devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
Abstract
The invention relates to the technical field of electronic communication, and particularly discloses a radio frequency performance optimization method and a wireless communication terminal, wherein the method is suitable for the wireless communication terminal and comprises the following steps: acquiring a country code of the mobile equipment according to a communication network connected with the SIM card; acquiring region information of the location of the SIM card according to the country code of the mobile equipment; acquiring a maximum SAR value allowed by a country or a region corresponding to the region information from an SAR database; and adjusting the SAR value of the wireless communication terminal to be matched with the maximum SAR value so as to obtain better radio frequency performance. The invention provides a radio frequency performance optimization method and a wireless communication terminal, which can enable the wireless communication terminal to obtain better radio frequency performance on the premise of meeting the requirements of local regulations on SAR.
Description
Technical Field
The invention relates to the technical field of electronic communication, in particular to a radio frequency performance optimization method and a wireless communication terminal.
Background
On the one hand, the electromagnetic radiation problem of wireless communication terminals such as mobile phones is more and more concerned by the public, and people hope to reduce the radiation of the wireless communication terminals to human bodies as much as possible. The magnitude of this radiation is currently measured primarily using the specific absorption rate of electromagnetic energy. The Specific Absorption Rate of electromagnetic wave energy, which is called Specific Absorption Rate (SAR) in English, is the Specific Absorption Rate of electromagnetic wave energy of a mobile phone or a wireless product, and the meaning of SAR is the electromagnetic power absorbed or consumed by human tissue of unit mass, and the unit is W/kg.
The wireless communication terminal has certain influence on human health due to excessive electromagnetic radiation, and people feel fatigue, eye fatigue, shoulder pain, headache, sleepiness, uneasiness and the like due to long-term electromagnetic radiation irradiation. Corresponding regulations are issued for electromagnetic radiation by government departments, telecommunication regulatory agencies and the like of various countries. Such as national standard YD-T1644.1-2007, European standard EN 62209-1 and the like. Generally, different countries or regions have different requirements for SAR.
On the other hand, with the development of the globalization of economy, work or travel out of country has become widespread. Different countries and regions have different signal frequency bands for wireless communication terminals, and if the wireless communication terminals can be used normally in different countries and regions, the wireless communication terminals are required to have better compatibility with the signal frequency bands.
In order to obtain better signal frequency band compatibility, the wireless communication terminal needs to have higher radio frequency performance. However, if the wireless communication terminal has better radio frequency performance, the maximum transmission power of the wireless communication terminal is also higher, the higher maximum transmission power will cause the increase of the SAR value, and the SAR value after the increase will not meet the local regulations, but will cause harm to human body.
Therefore, an optimization method is needed to balance the SAR and the radio frequency performance, so that the wireless communication terminal can obtain better radio frequency performance on the premise of meeting the requirements of local regulations on the SAR.
Disclosure of Invention
An object of the present invention is to provide a radio frequency performance optimization method and a wireless communication terminal, which can enable the wireless communication terminal to obtain better radio frequency performance on the premise of meeting the requirements of local regulations on SAR.
To achieve the above object, in one aspect, the present invention provides a radio frequency performance optimization method, suitable for a wireless communication terminal, including:
acquiring a country code of the mobile equipment according to a communication network connected with the SIM card;
acquiring region information of the location of the SIM card according to the country code of the mobile equipment;
acquiring a maximum SAR value allowed by a country or a region corresponding to the region information from an SAR database;
and adjusting the SAR value of the wireless communication terminal to be matched with the maximum SAR value so as to obtain better radio frequency performance.
Preferably, the adjusting the SAR value of the wireless communication terminal to match the maximum SAR value to obtain a better radio frequency performance includes:
acquiring the real-time distance between the wireless communication terminal and a human body;
and adjusting the SAR value of the wireless communication terminal according to the real-time distance so that the SAR value received by the human body is not more than the acquired maximum SAR value.
Preferably, the wireless communication terminal includes a distance sensor, and before acquiring the country code of the mobile device according to the communication network to which the SIM card is connected, the method further includes:
detecting whether the SIM card is installed correctly; if not, enabling the distance sensor to enter a dormant state and stopping acquiring the real-time distance between the wireless communication terminal and the human body; if yes, executing the next step.
Preferably, before the obtaining of the maximum SAR value allowed by the country or the region corresponding to the region information in the SAR database, the method further includes:
providing an SAR database which comprises regional information of a plurality of countries or regions and maximum SAR values corresponding to the regional information.
Preferably, the obtaining of the country code of the mobile device according to the communication network to which the SIM card is connected specifically includes:
and acquiring the network code and the country code of the mobile equipment according to the communication network connected with the SIM card.
In another aspect, the present invention provides a wireless communication terminal for performing a radio frequency performance optimization method, including:
a SIM card;
the MCC acquisition module is connected with the SIM card and is used for acquiring a country code of the mobile equipment according to a communication network connected with the SIM card;
the region information acquisition module is connected with the MCC acquisition module and used for acquiring the region information of the location of the SIM card according to the country code of the mobile equipment;
the maximum SAR value acquisition module is connected with the region information acquisition module and used for acquiring the maximum SAR value allowed by the country or the region corresponding to the region information from an SAR database;
and the frequency modulation module is connected with the maximum SAR value acquisition module and used for modulating the SAR value of the wireless communication terminal to be matched with the maximum SAR value so as to acquire better radio frequency performance.
Preferably, the frequency modulation module includes:
the distance sensor is used for acquiring the real-time distance between the wireless communication terminal and a human body;
and the frequency modulation unit is used for adjusting the SAR value of the wireless communication terminal according to the real-time distance so that the SAR value received by the human body is not larger than the acquired maximum SAR value.
Preferably, the method further comprises the following steps:
the SIM card detection module is respectively connected with the SIM card and the distance sensor and is used for detecting whether the SIM card is correctly installed; if not, enabling the distance sensor to enter a dormant state and stopping acquiring the real-time distance between the wireless communication terminal and the human body; if yes, executing the next step.
Preferably, the method further comprises the following steps:
and the SAR database storage module is connected with the maximum SAR value acquisition module and used for providing an SAR database, and the SAR database comprises regional information of a plurality of countries or regions and maximum SAR values corresponding to the regional information.
Preferably, the method further comprises the following steps:
and the MNC acquisition module is connected with the SIM card and is used for acquiring the network code of the mobile equipment according to the communication network connected with the SIM card.
The invention has the beneficial effects that: the radio frequency performance optimization method provided by the embodiment can be used for radio frequency performance optimization in the technical field of electronic communication, and the SAR value of the wireless communication terminal is adjusted to the upper limit of the SAR value allowed by local SAR regulations, so that the optimal radio frequency performance parameter is obtained, the radio frequency performance of the wireless communication terminal can be improved to the maximum extent, the signal frequency band compatibility of the wireless communication terminal is improved, and the transnational or transregional communication requirements of people are met.
Drawings
In order to more clearly illustrate the technical solutions in the present embodiment or the prior art, the drawings needed to be used in the description of the embodiment or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings according to these drawings without inventive labor.
Fig. 1 is a flowchart of a radio frequency performance optimization method according to an embodiment of the present invention;
fig. 2 is a block diagram of a wireless communication terminal according to a second embodiment of the present invention.
1. An SAR database storage module;
2. a SIM card;
3. SIM card detection module
4. An MCC acquisition module;
5. an MNC acquisition module;
6. a region information acquisition module;
7. a maximum SAR value acquisition module;
8. a frequency modulation module; 801. a distance sensor; 802. and a frequency modulation unit.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments, and it is apparent that the embodiments described below are only a part of embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
The embodiment provides a radio frequency performance optimization method, which is suitable for a radio frequency performance optimization application scene in the field of electronic communication, and can enable a wireless communication terminal to obtain the maximum radio frequency performance under the condition of meeting local SAR regulations.
Fig. 1 is a flowchart of a radio frequency performance optimization method provided in this embodiment.
Referring to fig. 1, the radio frequency performance optimization method includes the following steps:
s10: providing an SAR database which comprises regional information of a plurality of countries or regions and maximum SAR values corresponding to the regional information.
Specifically, each country or region has its own SAR value requirement, the regulatory requirements of each country or region are obtained in advance, the maximum SAR value allowed by the corresponding country or region is obtained according to each regulatory, and then the mapping relationship is generated between the regional information of each country or region and the corresponding maximum SAR value, so that the SAR database can be obtained.
Preferably, the region information may be any information for identifying each country or region, such as a mobile device country code, a region name, or latitude and longitude information.
Specifically, the FCC certification standard (FCC, which is known as Federal Communications Commission in the united states and chinese) is currently used in the americas, korea and taiwan areas, and the SAR value required for the FCC certification standard is not more than 1.6W/kg (within 1 g), that is, the corresponding maximum SAR value is 1.6W/kg (within 1 g). The CE certification standard (CE, which is commonly known as convention europe and is regarded as a passport opened by manufacturers and entering the european market) is currently used in europe and japan, and requires a SAR value of not more than 2.0W/kg (within 10 g), i.e., a corresponding maximum SAR value of 2.0W/kg (within 10 g). At present, the inland and hong Kong of China have no requirement on SAR value, and the SAR value can be properly adjusted to obtain better radio frequency performance. The MCC is 001 and the MNC is 01 corresponding to the MCC/MNC code of the test white card in the development stage, and the SAR standard executed in the condition may be specified according to the test requirement, for example, the most strict FCC certification standard may be selected.
It should be noted that the SAR database may be stored in the wireless communication terminal in advance before shipment, or may be sent to the wireless communication terminal in a later stage by way of updating, pushing, or the like.
S20: detecting whether the SIM card is installed correctly.
It should be noted that the correct installation of the SIM card is a prerequisite for the normal operation of the wireless communication terminal.
If not, enabling the distance sensor of the wireless communication terminal to enter a dormant state and stopping acquiring the real-time distance between the wireless communication terminal and the human body; if yes, go to S30.
It can be understood that, if the SIM card is not inserted and the SIM card is inserted reversely, the SIM card is considered to be not installed correctly, and when the SIM card is not inserted correctly, the distance sensor of the wireless communication terminal should enter a sleep state and stop acquiring the real-time distance between the wireless communication terminal and the human body, so as to save power in a standby mode to improve the cruising ability of the wireless communication terminal and avoid performing meaningless distance sensing.
S30: and acquiring the country code of the mobile equipment according to the communication network connected with the SIM card.
Specifically, a mobile device network code and a mobile device country code are obtained from a communication network to which the SIM card is connected.
It should be noted that a Mobile device Network Code (MNC) refers to a Mobile Network number, is used for identifying a Mobile Network to which a Mobile client belongs, and is composed of 2-3 digits. The Mobile device country code (MCC) is defined in the international telecommunication union e.212, and aims to identify the base of a Mobile device in a communication network, particularly in the gsm and umts systems. Mobile device country and area codes are often used in conjunction with mobile device network codes (MCC/MNC) to identify a network operator that is unique to each country or region.
According to the obtained mobile equipment network code and the mobile equipment country code, the country or the region where the wireless communication terminal is located and the network operator to which the communication network belongs can be known.
S40: and acquiring the region information of the location of the SIM card according to the country code of the mobile equipment.
S50: and acquiring the maximum SAR value allowed by the country or the region corresponding to the region information in an SAR database.
Specifically, in step S10, an SAR database is already embedded in the wireless communication terminal, and the mapping relationship of the SAR database is substituted with the geographic information, so that the corresponding maximum SAR value can be obtained.
S60: and adjusting the SAR value of the wireless communication terminal to be matched with the maximum SAR value so as to obtain better radio frequency performance.
Specifically, S60 includes:
s601: and acquiring the real-time distance between the wireless communication terminal and the human body.
It should be noted that the real-time distance can be detected by a distance sensor.
S602: and adjusting the SAR value of the wireless communication terminal according to the real-time distance so that the SAR value received by the human body is not more than the acquired maximum SAR value.
Specifically, a distance database may be provided in advance, where the distance database includes a correspondence relationship between a real-time distance between the wireless communication terminal and the human body, an SAR value received by the human body, and a radio frequency performance parameter of the wireless communication terminal. For example, each real-time distance corresponds to a plurality of SAR values received by the human body, and each SAR value received by the human body corresponds to a radio frequency performance parameter.
After the distance sensor obtains the real-time distance:
firstly, finding a target SAR value which is equal to or smaller than but closest to the maximum SAR value obtained in the step S50 from the SAR values received by a plurality of human bodies corresponding to the real-time distance;
then, the SAR value of the wireless communication terminal is adjusted to be equal to the target SAR value, and the radio frequency performance parameter of the wireless communication terminal is correspondingly adjusted to be the corresponding radio frequency performance parameter of the target SAR value in the distance database; at this time, the SAR value and the radio frequency performance parameter configured by the wireless communication terminal can ensure that the wireless communication terminal can obtain the maximum radio frequency performance on the premise of meeting the local SAR regulation.
The radio frequency performance optimization method provided by the embodiment can be used for radio frequency performance optimization in the technical field of electronic communication, and the SAR value of the wireless communication terminal is adjusted to the upper limit of the SAR value allowed by local SAR regulations, so that the optimal radio frequency performance parameter is obtained, the radio frequency performance of the wireless communication terminal can be improved to the maximum extent, the signal frequency band compatibility of the wireless communication terminal is improved, and the transnational or transregional communication requirements of people are met.
Example two
The wireless communication terminal provided by the embodiment of the invention can be used for executing the radio frequency performance optimization method provided by the embodiment of the invention, and has corresponding functions and beneficial effects.
Fig. 2 is a block diagram of a wireless communication terminal according to the second embodiment.
Referring to fig. 2, a wireless communication terminal includes:
the SAR database storage module 1 is connected with the maximum SAR value acquisition module 7 and used for providing an SAR database, and the SAR database comprises regional information of a plurality of countries or regions and maximum SAR values corresponding to the regional information.
A SIM card 2;
the SIM card detection module 3 is connected with the SIM card 2 and used for detecting whether the SIM card is correctly installed; if not, enabling the distance sensor to enter a dormant state and stopping acquiring the real-time distance between the wireless communication terminal and the human body; if yes, executing the next step.
The MCC acquisition module 4 is connected with the SIM card 2 and is used for acquiring the country code of the mobile equipment according to the communication network connected with the SIM card;
the MNC acquisition module 5 is connected with the SIM card 2 and used for acquiring a network code of the mobile equipment according to a communication network connected with the SIM card;
the region information acquisition module 6 is connected with the MCC acquisition module 4 and used for acquiring the region information of the location of the SIM card according to the country code of the mobile equipment;
the maximum SAR value acquisition module 7 is connected with the region information acquisition module 6 and is used for acquiring the maximum SAR value allowed by the country or the region corresponding to the region information from the SAR database;
and the frequency modulation module 8 is connected with the maximum SAR value acquisition module 7 and is used for modulating the SAR value of the wireless communication terminal to be matched with the maximum SAR value so as to acquire better radio frequency performance.
Preferably, the frequency modulation module comprises:
the distance sensor 801 is connected with the SIM card detection module 3 and is used for acquiring the real-time distance between the wireless communication terminal and a human body;
the frequency modulation unit 802 is configured to adjust an SAR value of the wireless communication terminal according to the real-time distance, so that the SAR value received by the human body is not greater than the obtained maximum SAR value.
Optionally, the wireless communication terminal is a tablet computer, a smart watch, a mobile phone, a notebook, or the like.
In the embodiments provided in the present application, it should be understood that the disclosed system, unit, apparatus and method may be implemented in other ways. For example, all the embodiments described above are merely illustrative, and for example, the division of the above units or modules is only one logical function division, and there may be other divisions when the actual implementation is performed, for example, a plurality of units, modules and components may be combined or integrated into another system, 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.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. 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 computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a computer-readable storage medium and includes instructions for causing a terminal device (which may be a mobile phone, a notebook, or other electronic device) to perform all or part of the steps of the method according to 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 examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. A radio frequency performance optimization method is suitable for a wireless communication terminal, and is characterized by comprising the following steps:
acquiring a country code of the mobile equipment according to a communication network connected with the SIM card;
acquiring region information of the location of the SIM card according to the country code of the mobile equipment;
acquiring a maximum SAR value allowed by a country or a region corresponding to the region information from an SAR database;
adjusting the SAR value of the wireless communication terminal to be matched with the maximum SAR value so as to obtain better radio frequency performance, specifically comprising the following steps:
acquiring the real-time distance between the wireless communication terminal and a human body;
adjusting the SAR value of the wireless communication terminal according to the real-time distance so that the SAR value received by the human body is not larger than the obtained maximum SAR value;
providing a distance database in advance, wherein the distance database comprises the corresponding relation among the real-time distance between the wireless communication terminal and the human body, the SAR value received by the human body and the radio frequency performance parameter of the wireless communication terminal;
after the distance sensor obtains the real-time distance:
firstly, finding a target SAR value which is equal to or smaller than but closest to the obtained maximum SAR value from a plurality of SAR values received by the human body corresponding to the real-time distance;
then, the SAR value of the wireless communication terminal is adjusted to be equal to the target SAR value, and the radio frequency performance parameter of the wireless communication terminal is correspondingly adjusted to be the radio frequency performance parameter corresponding to the target SAR value in the distance database.
2. The radio frequency performance optimization method according to claim 1, wherein the wireless communication terminal includes a distance sensor, and before acquiring the country code of the mobile device according to the communication network to which the SIM card is connected, the method further includes:
detecting whether the SIM card is installed correctly; if not, enabling the distance sensor to enter a dormant state and stopping acquiring the real-time distance between the wireless communication terminal and the human body; if yes, executing the next step.
3. The radio frequency performance optimization method according to claim 1, wherein before obtaining the maximum SAR value allowed by the country or the region corresponding to the region information in the SAR database, the method further comprises:
providing an SAR database which comprises regional information of a plurality of countries or regions and maximum SAR values corresponding to the regional information.
4. The radio frequency performance optimization method according to claim 1, wherein the obtaining of the country code of the mobile device according to the communication network to which the SIM card is connected specifically includes:
and acquiring the network code and the country code of the mobile equipment according to the communication network connected with the SIM card.
5. A wireless communication terminal for performing a radio frequency performance optimization method, comprising:
a SIM card;
the MCC acquisition module is connected with the SIM card and is used for acquiring a country code of the mobile equipment according to a communication network connected with the SIM card;
the region information acquisition module is connected with the MCC acquisition module and used for acquiring the region information of the location of the SIM card according to the country code of the mobile equipment;
the maximum SAR value acquisition module is connected with the region information acquisition module and used for acquiring the maximum SAR value allowed by the country or the region corresponding to the region information from an SAR database;
the frequency modulation module is connected with the maximum SAR value acquisition module and used for modulating the SAR value of the wireless communication terminal to be matched with the maximum SAR value so as to acquire better radio frequency performance; the frequency modulation module comprises:
the distance sensor is used for acquiring the real-time distance between the wireless communication terminal and a human body;
the frequency modulation unit is used for adjusting the SAR value of the wireless communication terminal according to the real-time distance so that the SAR value received by the human body is not larger than the acquired maximum SAR value;
providing a distance database in advance, wherein the distance database comprises the corresponding relation among the real-time distance between the wireless communication terminal and the human body, the SAR value received by the human body and the radio frequency performance parameter of the wireless communication terminal;
after the distance sensor obtains the real-time distance:
firstly, finding a target SAR value which is equal to or smaller than but closest to the obtained maximum SAR value from a plurality of SAR values received by the human body corresponding to the real-time distance; then, the SAR value of the wireless communication terminal is adjusted to be equal to the target SAR value, and the radio frequency performance parameter of the wireless communication terminal is correspondingly adjusted to be the radio frequency performance parameter corresponding to the target SAR value in the distance database.
6. The wireless communication terminal according to claim 5, further comprising:
the SIM card detection module is respectively connected with the SIM card and the distance sensor and is used for detecting whether the SIM card is correctly installed; if not, enabling the distance sensor to enter a dormant state and stopping acquiring the real-time distance between the wireless communication terminal and the human body; if yes, executing the next step.
7. The wireless communication terminal according to claim 5, further comprising:
and the SAR database storage module is connected with the maximum SAR value acquisition module and used for providing an SAR database, and the SAR database comprises regional information of a plurality of countries or regions and maximum SAR values corresponding to the regional information.
8. The wireless communication terminal according to claim 5, further comprising:
and the MNC acquisition module is connected with the SIM card and is used for acquiring the network code of the mobile equipment according to the communication network connected with the SIM card.
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| CN112769501B (en) * | 2020-12-16 | 2023-05-23 | 惠州Tcl移动通信有限公司 | Antenna transmitting power adjusting method and device, storage medium and terminal equipment |
| CN112822762B (en) * | 2020-12-30 | 2023-07-07 | 展讯通信（上海）有限公司 | Radio frequency output power configuration method and device, electronic chip and electronic equipment |
| CN112770380B (en) * | 2021-01-15 | 2023-03-10 | 深圳市广和通无线股份有限公司 | Specific absorption rate parameter adjusting method, specific absorption rate parameter adjusting device, computer equipment and storage medium |
| CN113286354B (en) * | 2021-04-07 | 2023-11-03 | 深圳市广和通无线股份有限公司 | Method, related apparatus, device and readable storage medium for adjusting performance parameters |
| CN114641059A (en) * | 2022-03-10 | 2022-06-17 | 深圳市广和通无线通信软件有限公司 | Communication control method and electronic equipment |
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