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A method and device for reducing SAR value, and computer storage medium

A first-time, absorption ratio technology, applied in wireless communication, electrical components, etc., can solve problems such as uplink failure, affecting user experience, and reducing uplink coverage, reducing the proportion of uplink time slots and avoiding insufficient uplink coverage. , to avoid the effect of SAR value exceeding the standard

Active Publication Date: 2020-12-15
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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  • A method and device for reducing SAR value, and computer storage medium
  • A method and device for reducing SAR value, and computer storage medium
  • A method and device for reducing SAR value, and computer storage medium

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Embodiment Construction

[0045] In order to facilitate the 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), Time Division Duplexing (TDD, Time DivisionDuplexing) B41 introduces 26dBm high-power terminals, in order to solve the SAR exceeding the limit limit the ratio of uplink and downlink time slots used by the network, that is, more than 50% The time slot ratio for uplink transmission cannot be used. This is feasible in the LTE network, because the ratio of uplink and downlink time slots in LTE is fixed in seven modes, as shown in Table 1 below, and the ratio of time slots actually used by the network is also static.

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[0049]But for NR, the simple solution of LTE is no longer applicable, because the uplink and downlink ratio of NR is no longer a fixed mode, but dynamically adjustabl...

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Abstract

The invention discloses a method and device for reducing the SAR value, and a computer storage medium. The method includes: a terminal determines the actual uplink time slot ratio of the terminal; the actual uplink time slot ratio of the terminal exceeds that of the terminal When the proportion of the maximum uplink time slot is supported, no signal is sent on one or more uplink symbols scheduled by the network device to the terminal, so as to reduce the SAR value of the terminal.

Description

technical field [0001] The present invention relates to the field of wireless communication technology, and in particular to a method and device for independently reducing an electromagnetic wave absorption ratio (SAR, Specific Absorption Rate) value by a terminal, and a computer storage medium. Background technique [0002] SAR is an index parameter to measure the electromagnetic radiation intensity of terminals to human body. There are strict index requirements for SAR values ​​in standards, and terminals 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, high-power terminals (power>23dBm) have higher SAR values ​​than normal-power terminals (power=23dBm). To avoid SAR values ​​exceeding regulatory requirements, the proportion of uplink time slots needs to be limited. [0003] For the fifth gen...

Claims

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Application Information

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Patent Type & Authority Patents(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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