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Transmission power control method and device, computer equipment and storage medium

A technology of transmitting power and control method, applied in power management, branch equipment, electrical components, etc., can solve problems such as reducing the transmission duty cycle, inability to detect accurately, and narrow radiated energy in the millimeter wave band

Active Publication Date: 2021-09-10
BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For millimeter waves, although the terminal can judge that the human body is nearby through sensor detection and detection, the above method cannot accurately detect and judge whether the power needs to be reduced due to the characteristics of narrow beams and relatively concentrated radiation energy in the millimeter wave frequency band. Or reduce the transmit duty cycle, which cannot effectively reduce the impact of terminal electromagnetic radiation while ensuring communication quality

Method used

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  • Transmission power control method and device, computer equipment and storage medium
  • Transmission power control method and device, computer equipment and storage medium
  • Transmission power control method and device, computer equipment and storage medium

Examples

Experimental program
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example 1

[0096] The methods include:

[0097] Step a1: When the beams transmitted by the terminal are the first type of beams facing the human body area, reduce the transmission power of the first type of beams by adopting a power limit that meets the safety requirements of the human body.

[0098] See Figure 12 , because the front of the terminal (the plane where the terminal screen is located) generally faces the human body area during normal use of the terminal, the front of the terminal is selected as the reference plane in this example. The terminal can determine the total width of all effective beams supported by the terminal according to design and testing. For example, the identifiers of the beams that the terminal supports to transmit are identifier 1 (index1) to identifier N (indexN), the maximum angle occupied by all the beams is a, and the maximum angle b occupied by the beam on the front of the terminal. here, see again Figure 7 , the terminal calculates the angle λ a...

example 2

[0110] The methods include:

[0111] In step a2, when the beams transmitted by the terminal are the first type of beams facing the human body area, the transmission power of the first type of beams is reduced by using a power limit that meets the safety requirements of the human body.

[0112] See Figure 13 , in this example, the front of the terminal is selected as the reference surface. The terminal can determine the total width of all effective beams supported by the terminal according to design and testing. For example, the terminal supports transmitting beams from index 1 (index1) to index N (indexN), the maximum angle occupied by all beams is a, and the maximum angle b occupied by the beam on the front of the terminal is. here, see again Figure 7 , the terminal calculates the angle λ according to the distance D between the human body and the terminal and the width data W of the human body measured by the sensor. This example is aimed at the case where the maximum a...

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Abstract

The invention relates to a transmission power control method, which is applied to a terminal, and comprises the following steps: when a wave beam transmitted by the terminal is a first type of wave beam facing a human body area, reducing the transmitting power of the first type of wave beam by adopting power limitation meeting human body safety requirements.

Description

technical field [0001] The present disclosure relates to the technical field of mobile terminals, and in particular, to a transmission power control method, device, computer equipment, and storage medium. Background technique [0002] Electromagnetic radiation from mobile terminal devices such as mobile phones, smart watches, and computers may have an impact on human safety. Especially with the upcoming commercial use of 5G New Radio (NR, New Radio), terminals that support high-frequency bands and high power will become the mainstream of the market, and this also objectively increases the risk of electromagnetic radiation from terminals to human safety. [0003] The electromagnetic radiation standard for the safety of the terminal to the human body is expressed internationally by the electromagnetic wave absorption ratio or specific absorption rate (SAR, Specific Absorption Rate) and the maximum permissible exposure (MPE, Maximum Permissible Exposure). The former is mainly ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M1/72454H04W52/14
CPCH04W52/14Y02D30/70
Inventor 洪伟姚桂龙刘水
Owner BEIJING XIAOMI MOBILE SOFTWARE CO LTD