Method and device for reducing SAR value and computer storage medium

A first-time, absorption ratio technology, applied in electrical components, wireless communications, etc., can solve problems such as reduced uplink coverage, impact on user experience, uplink failure, etc., to reduce the proportion of uplink time slots and avoid insufficient uplink coverage , Avoid the effect of SAR value exceeding the standard

Active Publication Date: 2019-11-22
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Abstract
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Problems solved by technology

However, the use of power back-off by the terminal will lead to the reduction of uplink coverage, and in severe cases, it will cause uplink failure and affect user experience

Method used

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  • Method and device for reducing SAR value and computer storage medium
  • Method and device for reducing SAR value and computer storage medium
  • Method and device for reducing SAR value and computer storage medium

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Embodiment Construction

[0045] In order to facilitate understanding of the technical solutions of the embodiments of the present invention, related concepts of uplink and downlink resource configuration are explained below.

[0046] In the era of Long Term Evolution (LTE, Long Term Evolution), a 26dBm high-power terminal was introduced on the Time Division Duplexing (TDD, Time Division Duplexing) B41, which limited the uplink and downlink time slot ratio used by the network to solve the problem of SAR exceeding the standard, that is, more than 50% The time slot configuration for uplink transmission cannot be used. This is feasible in the LTE network, because the LTE uplink and downlink time slot ratios are fixed in seven modes, as shown in Table 1 below, and the time slot ratio actually used by the network is also statically unchanged.

[0047]

[0048] Table 1

[0049]But for NR, the simple solution of LTE is no longer applicable, because the uplink and downlink ratio of NR is no longer a fixed ...

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Abstract

The invention discloses a method and a device for reducing an SAR (Synthetic Aperture Radar) value and a computer storage medium. The method comprises the following steps: a terminal determines an actual uplink time slot proportion of the terminal; and when the actual uplink time slot ratio of the terminal exceeds the maximum uplink time slot ratio supported by the terminal, a signal is not sent on one or more uplink symbols scheduled to the terminal by network equipment so as to reduce the SAR value of the terminal.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, and in particular, to a method, a device, and a computer storage medium for a terminal to autonomously reduce an electromagnetic wave absorption ratio (SAR, Specific Absorption Rate) value. Background technique [0002] SAR is an index parameter that measures the electromagnetic radiation intensity of the terminal to the human body. The standard has strict index requirements on the SAR value, and the terminal cannot exceed this limit. Generally speaking, the higher the transmit power of the terminal, the higher the SAR value, and the higher the proportion of uplink time slots used by the terminal, the higher the SAR value. Therefore, the high-power terminal (power>23dBm) has a higher SAR value than the ordinary power terminal (power=23dBm). In order to avoid the SAR value exceeding the regulatory requirements, the proportion of uplink time slots needs to be limited. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04W72/12
CPCH04W72/0446H04W72/542H04W72/20H04W72/04H04W72/12
Inventor 史志华
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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