TWI493999B - Method and apparatus for controlling the signal transmission power of mobile device - Google Patents

Description

Method and apparatus for controlling transmission signal power of a mobile device

The present invention relates to controlling the transmitted signal power of a mobile device.

In the mobile device, the antenna is disposed at the edge of the mobile device to enhance the efficiency of signal transmission. When the distance between the antenna and the user is reduced, the electromagnetic wave energy received by the user is increased. Excessive electromagnetic wave energy can cause user damage, so it is necessary to control the amount of electromagnetic wave energy received by the user to avoid harm to the user.

The method of reducing the amount of electromagnetic wave energy received by the user can increase the distance between the user and the antenna, but there is not enough space in the limited-sized mobile device to increase the distance between the user and the antenna. Another way is to use a distance sensor to control the transmission signal power of the wireless module, but this method will greatly increase the cost and additional space consumption. Therefore, there is a great need for a method for effectively controlling the transmission signal power of a wireless module without excessively consuming excessive cost.

The present invention provides a method for controlling the transmission signal power of a mobile device, comprising: reading a specific transmission signal power setting value from a storage unit external to a wireless module, wherein the specific transmission signal power setting value is different from the wireless module a preset transmission signal power setting value stored in one of the internal memories; and setting a transmission signal power of one of the mobile devices according to the specific transmission signal power setting value.

The present invention provides a device for controlling the power of a signal transmitted by a mobile device, comprising: a wireless module; a memory disposed inside the wireless module for storing a preset transmission signal power setting value; a storage unit, setting External to the wireless module, for storing a specific transmission signal power setting value, wherein the specific transmission signal power setting value is different from the preset transmission signal power setting value; and a control unit for storing from outside the wireless module The unit reads the specific transmission signal power setting value and sets the transmission signal power of one of the wireless modules according to the specific transmission signal power setting value.

1 is a block diagram showing a hardware architecture of a method for controlling a signal power of a mobile device according to an embodiment of the present invention. As shown in FIG. 1, the electronic system 100 includes a wireless module 102, a control unit 104, and a storage unit 106. For example, electronic system 100 can be a cell phone, a smart phone, a PDA phone, and/or other device that can transmit signals via an antenna. In one embodiment, electronic system 100 can be a device for controlling the power of the transmitted signal of the mobile device. In some embodiments, control unit 104 can be internal to wireless module 102; while in other embodiments, control unit 104 can be external to wireless module 102. When the electronic system 100 turns on the wireless module 102 during the booting process, the wireless module 102 first sets the transmission signal power of the wireless module 102 according to the preset transmission signal power setting value in the memory of the wireless module 102. The storage unit 106 is configured to store a specific transmission signal power setting value. Then, the control unit 104 is configured to read the specific transmission signal power setting value from the storage unit 106 external to the wireless module 102, and set the transmission signal power of the wireless module 102 according to the specific transmission signal power setting value by using the AT command.

Figure 2 is a block diagram showing another hardware architecture of a method for controlling signal power transmission of a mobile device in accordance with an embodiment of the present invention. As shown in FIG. 2, the electronic system 200 includes a wireless module 202, an embedded controller 204, a storage unit 206, and an antenna 208. The wireless module 202 further includes a signal processor 210, a radio frequency transmitter 212, a transmission signal power amplifier 214, an advanced reduced instruction set machine 216, and a memory 218. In one embodiment, electronic system 200 can be a device for controlling the power of the transmitted signal of the mobile device. In some embodiments, the signal processor 210 is configured to format, encode, and offload traffic data for each data string according to a particular encoding mode selected for the data string to provide encoded data. The RF transmitter 212 receives and processes the respective symbol streams to provide an analog signal. The transmission signal power amplifier 214 is used to amplify the analog signal.

In an embodiment, in a basic input/output system, when the electronic system 200 turns on the wireless module 202 during the boot process, the advanced reduced instruction set machine 216 reads the preset transmission from the memory 218 in the wireless module 202. The signal power setting value, the preset transmission signal power setting value has passed the international wireless output power standard. Next, the advanced reduced instruction set machine 216 sets the transmission signal power of the wireless module 202 according to the preset preset transmission signal power setting value. After the advanced reduced instruction set machine 216 sets the transmission signal power of the wireless module 202 according to the preset preset transmission signal power setting value, the embedded controller 204 reads a specific transmission signal stored in the storage unit 206. Power setting. Then, the embedded controller 204 sets the transmission signal power of the wireless module 202 according to the read specific transmission signal power setting value by the AT command, instead of the transmission signal power originally set according to the preset transmission signal power setting value. . Finally, the electronic system 200 is turned on.

In different types of mobile devices, the specific transmission signal power setting will vary depending on where the antenna is placed. In different types of mobile devices, the storage unit 206 stores a specific transmission signal power setting value, which is usually lower than the preset transmission signal stored in the memory 218 of the wireless module 202. Power setting. The use of the same wireless module for different types of mobile devices may cause the electromagnetic wave energy absorption ratio to be high, thus causing harm to the human body. In the general electromagnetic radiation environment (the device and the human body are kept within 20 cm), the ratio of the unit mass to the electromagnetic wave energy absorption is called the specific absorption rate (SAR), and the SAR test is in all the tested frequency bands. The mobile phone transmission is carried out with the highest qualified power and tested in a standard operating posture. The electromagnetic wave energy absorption ratio is expressed in units of W/Kg and is used to calculate the value of electromagnetic radiation received by each unit of human tissue and organs. The electromagnetic wave energy absorption ratio is usually calculated as the average value of the entire human body, or a small sample volume (usually 1 gram or 10 grams of human tissue and organs). The calculated value is the maximum value of the body's volume or mass absorbed by the electromagnetic wave energy. Although the electromagnetic wave energy absorption ratio is measured at the highest power claimed, the actual electromagnetic wave energy absorption ratio when using an electronic device is much lower than the maximum value. The electromagnetic wave energy absorption ratio of human tissues and organs can be calculated by the following equation:

Where σ represents the sample conductivity, | E | represents the electric field strength, and ρ represents the sample density. Therefore, the mobile device designer can set a specific transmission signal power setting value according to the configuration of the antenna of the different types of mobile devices, and store the specific transmission signal power setting value in the storage unit 206.

In another embodiment, FIG. 3 is a block diagram showing another hardware architecture of a method for controlling signal power transmission of a mobile device according to an embodiment of the present invention. As shown in FIG. 3, the electronic system 300 includes a wireless module 302, a storage unit 306, and an antenna 308. The wireless module 302 further includes a signal processor 310, a radio frequency transmitter 312, a transmission signal power amplifier 314, an advanced reduced instruction set machine 316, and a memory 318. In one embodiment, electronic system 300 can be a device for controlling the power of the transmitted signal of the mobile device. In some embodiments, the signal processor 310 is configured to format, encode, and offload traffic data for each data string according to a particular encoding mode selected for the data string to provide encoded data. The RF transmitter 312 receives and processes the respective symbol streams to provide an analog signal. The transmission signal power amplifier 314 is used to amplify the analog signal.

When the electronic system 300 turns on the wireless module 302 during the booting process, the advanced reduced instruction set machine 316 reads the preset transmission signal power setting value from the memory 318 in the wireless module 302. Next, the advanced reduced instruction set machine 316 reads a particular transmitted signal power set value stored in the storage unit 306. Next, the advanced reduced instruction set machine 316 determines the magnitude relationship between the read specific transmission signal power setting value and the preset transmission signal power setting value. If the specific transmission signal power setting value is less than or equal to the preset transmission signal power setting value, the specific transmission signal power setting value is set to the transmission signal power of the wireless module 302; if the specific transmission signal power setting value is greater than the preset transmission value The signal power setting value sets the preset transmission signal power setting value to the transmission signal power of the wireless module 302. Generally, the specific transmission signal power setting value is designed to be less than or equal to the preset transmission signal power setting value, so that the system sets the specific transmission signal power setting value to the transmission signal power of the wireless module 302. Through this mechanism, the system can pass SAR testing without recertification. Finally, the electronic system 300 is turned on.

In another embodiment, FIG. 4 is a block diagram showing another hardware architecture of a method of controlling the transmission of signal power of a mobile device in accordance with an embodiment of the present invention. As shown in FIG. 4, the electronic system 400 includes a wireless module 402, a central processing unit 404, a storage unit 406, and an antenna 408. The wireless module 402 further includes a signal processor 410, a radio frequency transmitter 412, a transmission signal power amplifier 414, an advanced reduced instruction set machine 416, and a memory 418. In one embodiment, electronic system 400 can be a device for controlling the power of the transmitted signal of the mobile device. In some embodiments, the signal processor 410 is configured to format, encode, and offload traffic data for each data string according to a particular encoding mode selected for the data string to provide encoded data. The RF transmitter 412 receives and processes the respective symbol streams to provide analog signals. The transmission signal power amplifier 414 is used to amplify the analog signal.

When the electronic system 400 turns on the wireless module 402 during the booting process, the advanced reduced instruction set machine 416 reads the preset transmission signal power setting value from the memory 418 in the wireless module 402. Next, the advanced reduced instruction set machine 416 sets the transmission signal power of the wireless module 402 according to the read preset transmission signal power setting value. Next, the electronic system 400 is turned on. After the electronic system 400 is turned on, a particular application causes the central processor 404 to read a particular transmitted signal power setting stored in the storage unit 406. Finally, the central processing unit 404 sets the transmission signal power of the wireless module 402 according to the read specific transmission signal power setting value by the AT command, instead of the transmission signal power originally set according to the preset transmission signal power setting value.

Figure 5 is a flow chart showing a method of controlling the transmission of signal power of a mobile device in accordance with an embodiment of the present invention. In step S502, the wireless module is turned on during the startup process of the mobile device, and the transmission signal power is set according to the preset transmission signal power setting value. For example, the advanced reduced instruction set machine 216 reads the preset transmission signal power set value from the memory 218 in the wireless module 202. Next, the advanced reduced instruction set machine 216 sets the transmission signal power of the wireless module 202 according to the preset preset transmission signal power setting value. In step S504, the specific transmission signal power setting value is read from the storage unit external to the wireless module. For example, embedded controller 204 reads a particular transmitted signal power set value stored in storage unit 206. For example, the advanced reduced instruction set machine 316 reads a particular transmitted signal power set value stored in the storage unit 306. In step S506, the AT signal is used to set the transmission signal power according to the read specific transmission signal power setting value. For example, the embedded controller 204 sets the transmission signal power of the wireless module 202 according to the read specific transmission signal power setting value by the AT command, instead of the transmission originally set according to the preset transmission signal power setting value. Signal power. For example, the advanced reduced instruction set machine 316 sets the transmission signal power of the wireless module 302 according to the specific transmission signal power setting value that is read, instead of the transmission signal originally set according to the preset transmission signal power setting value. power. In step S508, the system is turned on.

Figure 6 is a flow chart showing a method of controlling the transmission of signal power of a mobile device in accordance with another embodiment of the present invention. In step S602, the wireless module is turned on during the booting process of the mobile device, and the transmitted signal power is set according to the preset transmission signal power setting value. For example, the advanced reduced instruction set machine 416 reads the preset transmit signal power set value from the memory 418 in the wireless module 402. Next, the advanced reduced instruction set machine 416 sets the transmission signal power of the wireless module 402 according to the read preset transmission signal power setting value. In step S604, the system is turned on. In step S606, the specific application reads the specific transmission signal power setting value from the storage unit external to the wireless module. For example, a particular application causes central processor 404 to read a particular transmitted signal power setting stored in storage unit 406. In step S608, the AT signal is used to set the transmission signal power according to the read specific transmission signal power setting value. For example, the central processing unit 404 sets the transmission signal power of the wireless module 402 according to the specific transmission signal power setting value read by the AT command, instead of the transmission signal originally set according to the preset transmission signal power setting value. power.

Therefore, the present invention rewrites the method of transmitting signal power originally set according to the preset transmission signal power setting value in the wireless module according to the specific transmission signal power setting value stored in the memory outside the wireless module. The designer can set a specific transmission signal power setting value according to the position of the antenna in different types of mobile devices, so that the user does not receive excessive electromagnetic wave energy. The method for controlling the signal power of the mobile device of the present invention can also save the authentication time and the cost. If the firmware of the wireless module of the mobile device changes the preset transmission signal power value, each change needs to be authenticated. And it takes a considerable amount of cost. Therefore, if the preset transmission signal power value is changed according to different types of mobile devices, the cost is too high. The method for controlling the signal power of the mobile device of the present invention allows the designer to store a specific transmission signal power setting value in a memory external to the wireless module, and to change the mobile device via the various embodiments used in the above paragraphs. Transmitting the signal power to reduce the electromagnetic wave energy absorbed by the user without affecting the transmission performance of the signal.

The above paragraphs are described in various levels. Obviously, the teachings herein can be implemented in a variety of ways, and any particular architecture or function disclosed in the examples is merely representative. In light of the teachings herein, it will be understood by those skilled in the art that the various aspects disclosed herein can be implemented independently or two or more layers can be combined. By way of example, a certain device or a method may be implemented or implemented in a manner that is in any number of ways as referred to in the foregoing. In addition, implementation of a device or implementation of a method may be added to or different from one or more of the layers discussed above in any other architecture, or functionality, or architecture and functionality.

While the present invention has been described in its preferred embodiments, the present invention is not intended to limit the invention, and the present invention may be modified and modified without departing from the spirit and scope of the invention. The scope of protection is subject to the definition of the scope of the patent application.

100, 200, 300, 400. . . electronic system

102, 202, 302, 402. . . Wireless module

104. . . control unit

106, 206, 306, 406. . . Storage unit

204. . . Embedded controller

208, 308, 408. . . antenna

210, 310, 410. . . Signal processor

212, 312, 412. . . RF transmitter

214, 314, 414. . . Transmit signal power amplifier

216, 316, 416. . . Advanced reduced instruction set machine

218, 318, 418. . . Memory

404. . . CPU

Figure 1 shows an embodiment of an electronic system;

Figure 2 is another embodiment of an electronic system;

Figure 3 is another embodiment of an electronic system;

Figure 4 is another embodiment of an electronic system;

Figure 5 is a flow chart for describing a method of controlling the power of a transmitted signal of a mobile device.

Figure 6 is a flow chart showing another method of controlling the power of the transmitted signal of the mobile device.

Claims (12)

A method for controlling transmission signal power of a mobile device includes: reading a specific transmission signal power setting value from a storage unit external to a wireless module, wherein the specific transmission signal power setting value is set according to one of the antenna placement positions And the specific transmission signal power setting value is different from a preset transmission signal power setting value stored in one of the internal memory modules; and setting a transmission of one of the mobile devices according to the specific transmission signal power setting value Signal power. The method for controlling the transmission of signal power of a mobile device according to claim 1, wherein the transmission signal power of the mobile device is set according to the specific transmission signal power setting value and using an AT command. The method for controlling the transmission of signal power of the mobile device according to claim 1, further comprising: reading the specific transmission signal power from the storage unit outside the wireless module when the wireless module is turned on during the booting process Before the setting value, the preset transmission signal power setting value is read from the memory inside the wireless module, and the transmission signal power of the mobile device is set according to the preset transmission signal power setting value. The method for controlling the transmission of signal power of the mobile device according to claim 1, wherein the step of reading the specific transmission signal power setting value and setting the transmission signal power is performed after the mobile device receives a power activation signal. The above mobile device is executed by an embedded controller before it is turned on. The method for controlling the transmission of signal power of the mobile device according to claim 1, wherein the step of reading the specific transmission signal power setting value and setting the transmission signal power is performed after the mobile device receives a power activation signal. The above mobile device is executed by an advanced reduced instruction set machine before the completion of the mobile device. The method for controlling the transmission of signal power of the mobile device according to claim 1, wherein the step of reading the specific transmission signal power setting value and setting the transmission signal power is performed by a central processing after the mobile device is turned on. Executed by the device. The device for controlling the power of the signal transmission of the mobile device comprises: a wireless module; a memory disposed in the wireless module for storing a preset transmission signal power setting value; a storage unit disposed on the The outside of the wireless module is configured to store a specific transmission signal power setting value, wherein the specific transmission signal power setting value is set according to one of the antenna placement positions, and the specific transmission signal power setting value is different from the preset transmission signal. a power setting value; and a control unit configured to read the specific transmission signal power setting value from the storage unit external to the wireless module, and set a transmission signal power of the wireless module according to the specific transmission signal power setting value . The device for controlling the transmission of signal power of the mobile device according to claim 7, wherein the wireless module comprises a signal processor, a radio frequency transmitter and a transmission signal power amplifier. The apparatus for controlling the transmission of signal power of the mobile device according to claim 7, wherein the control unit reads the specific transmission signal from the storage unit outside the wireless module when the wireless module is turned on during the booting process Before the power setting, the wireless module sets the transmission signal power of the mobile device according to the preset transmission signal power setting value of the memory in the wireless module. The apparatus for controlling the transmission of signal power of the mobile device according to claim 7, wherein the specific transmission signal power is read by the control unit after the mobile device receives a power activation signal and the mobile device is turned on. Set value and set the above transmission signal power. The device for controlling the transmission of signal power of the mobile device according to claim 7, wherein the control unit reads the specific transmission signal power setting value and sets the transmission signal power after the mobile device is turned on. The device for controlling the transmission of signal power of the mobile device according to claim 7, wherein the control unit is an embedded controller, an advanced reduced instruction set machine or a central processing unit.