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Method and device for preventing specific absorption rate from being beyond standard, and mobile equipment

A specific absorption rate, mobile device technology, applied in the field of communications, can solve problems such as low maximum transmit power, users cannot use mobile devices normally, and multiple antennas have the same maximum transmit power.

Active Publication Date: 2016-09-28
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the existence of multiple transmitting antennas, in the actual production process, it is difficult to ensure that the maximum transmitting power of multiple antennas is consistent, and the antenna with a large maximum transmitting power may have a problem that the specific absorption rate (Specific Absorption Rate, SAR) does not meet the requirements of the SAR standard certification , in view of this situation, before the mobile device leaves the factory, once it is found that there is a problem that the SAR does not meet the SAR standard certification requirements, the current method is to forcibly reduce the maximum transmission power of multiple antennas at the same time according to the unified adjustment. During use, the mobile device will communicate with the maximum transmission power reduced by the unified adjustment to ensure that the specific absorption rate meets the requirements of the SAR standard certification. In this way, the antenna with a lower maximum transmission power will have a maximum The transmission power is reduced to a lower level, which may cause the user to be unable to use the mobile device normally, and the user experience is poor

Method used

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  • Method and device for preventing specific absorption rate from being beyond standard, and mobile equipment
  • Method and device for preventing specific absorption rate from being beyond standard, and mobile equipment
  • Method and device for preventing specific absorption rate from being beyond standard, and mobile equipment

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Embodiment 1

[0063] Such as figure 1 as shown, figure 1 A schematic flow chart of the method for controlling the specific absorption rate exceeding the standard provided by the embodiment of the present invention, figure 1 The shown method can be implemented before the mobile device leaves the factory, including the following steps:

[0064] Step 101, measure the specific absorption rate of the human body when each of the multiple antennas is used as the transmitting antenna of the mobile device under the maximum transmitting power;

[0065] In a specific implementation, the multiple antennas refer to two or more antennas, and each antenna in the multiple antennas can be switched to serve as a transmitting antenna of the mobile device.

[0066] Step 102, when there is an antenna with a specific absorption rate exceeding the standard among the plurality of antennas, calculate according to the difference between the measured value of the specific absorption rate of the human body and the s...

Embodiment 2

[0090] In order to implement the method of the above-mentioned embodiment better, the present invention also provides a kind of device for controlling the specific absorption rate to exceed the standard, such as image 3 As shown, the device of this embodiment includes:

[0091] The measuring unit 301 is used to measure the specific absorption rate of the human body when each of the multiple antennas is used as the transmitting antenna of the mobile device under the maximum transmitting power;

[0092] The calculation unit 302 is configured to, when there is an antenna with a specific absorption rate exceeding the standard among the plurality of antennas, according to the difference between the measured value and the standard value of the specific absorption rate of the human body when the antenna with the specific absorption rate exceeds the standard as the transmitting antenna The value is calculated to obtain the maximum transmission power calibration value of the antenna w...

Embodiment 3

[0109] Such as Figure 4 As shown, the method of this embodiment can be implemented during the use of the mobile device, and the method of this embodiment includes:

[0110] Step 401, selecting the antenna with the best performance from the multiple antennas of the mobile device as the transmitting antenna;

[0111]Before step 401 is executed, the received signal strength of multiple antennas can be detected under the same conditions. The transmission and reception of the antennas are directly related. It can be judged which antenna has better performance by comparing the received signal strengths of multiple antennas. Generally speaking, the antenna with better performance is the antenna with the best received signal strength among multiple antennas. After the transmitting antenna is selected from multiple antennas, the transmitting path can be switched to the currently selected transmitting antenna through the antenna switching switch.

[0112] Step 402: Invoke the pre-sto...

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Abstract

Embodiments of the invention disclose a method and a device for preventing the specific absorption rate from being beyond the standard, and a piece of mobile equipment. The method comprises the following steps: measuring the specific absorption rate of the human body when each of multiple antennas is used as the transmitting antenna of mobile equipment under maximum transmitted power; when there is an antenna making the specific absorption rate beyond the standard in the multiple antennas, calculating the calibrated value of maximum transmitted power of the antenna making the specific absorption rate beyond the standard according to the difference between the measured value of specific absorption rate of the human body when the antenna making the specific absorption rate beyond the standard is used as the transmitting antenna and a standard value; and storing the calibrated value of maximum transmitted power of the antenna making the specific absorption rate beyond the standard in the mobile equipment. According to the embodiments of the invention, the requirements of the SAR standard are satisfied, and the user experience is enhanced.

Description

technical field [0001] The embodiments of the present invention relate to the field of communication technology, and in particular to a method, device and mobile device for controlling the SAR to exceed the standard. Background technique [0002] At present, mobile devices mostly use the frame or the gap in the back cover as the radiator of the antenna, and the transmitting antenna is involved in the bottom of the mobile device, which will cause the risk of the antenna being held dead during use. The improvement solution is to add one or more For the transmitting antenna, a part of the transmitting antenna is designed on the top of the mobile device, and another part of the transmitting antenna is designed on the bottom of the mobile device. [0003] Due to the existence of multiple transmitting antennas, in the actual production process, it is difficult to ensure that the maximum transmitting power of multiple antennas is consistent, and the antenna with a large maximum tra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/10H04B17/12H04W52/24H04W52/36
CPCH04B17/102H04B17/12H04W52/24H04W52/367
Inventor 王雄兵
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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