Uplink power control method and device

A technology of power control and receiving power, which is applied in the field of communication, can solve the problems that the total uplink power of PUSCH is not fully utilized, affects the uplink coverage and uplink transmission rate of PUSCH, and wastes uplink power, so as to improve uplink coverage and uplink transmission rate, The effect of increasing the actual upstream total power and reasonable control

Active Publication Date: 2021-10-12
VIVO MOBILE COMM CO LTD
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Problems solved by technology

[0006] In the prior art, since the total power of the PUSCH is evenly distributed among all ports configured on the network side corresponding to the corresponding transmission mode, when the terminal equipment (User Equipment, UE) only uses some ports to transmit the PUSCH (for example, only When using a non-zero port to transmit PUSCH), it will cause the uplink power allocated to other ports to be wasted, so that the total uplink power of PUSCH is not fully utilized, affecting the uplink coverage and uplink transmission rate of PUSCH

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  • Uplink power control method and device

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[0033] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] It should be understood that the technical solutions of the embodiments of the present invention can be applied to various communication systems, such as: Global System of Mobile communication (Global System of Mobile communication, GSM) system, Code Division Multiple Access (Code Division Multiple Access, CDMA) system, wideband code div...

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Abstract

The present invention provides an uplink power control method and device, the method comprising: sending downlink control information DCI, the DCI includes related parameters of uplink signal power control, the related parameters are related to the number of target ports of the terminal equipment, Or the relevant parameters are related to the number of target ports and the total number of ports of the terminal device, where the target port is the port used by the terminal device to transmit the uplink signal; the uplink signal includes a physical uplink shared channel PUSCH and sounding At least one of the reference signals SRS. In the embodiment of the present invention, since the relevant parameters of the uplink signal power control contained in the DCI are related to the number of target ports actually used to transmit the uplink signal in the terminal device, the uplink power can be controlled more accurately and reasonably, Increase the actual uplink total power of the uplink signal, thereby improving the uplink coverage and uplink transmission rate of the uplink signal.

Description

technical field [0001] The present invention relates to the technical field of communications, and more particularly to an uplink power control method and device. Background technique [0002] Power control is an important technology in the wireless communication system, and the power control can make the wireless signal reach the receiver with reasonable power. [0003] In the fifth generation (5 th -Generation, 5G) mobile communication system, the physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) supports two transmission modes based on codebook and non-codebook. In any of the two transmission modes, for a PUSCH, its uplink power is evenly distributed among all antenna ports (hereinafter referred to as ports) corresponding to the transmission mode, wherein the ports corresponding to the transmission mode may include Zero ports and non-zero ports. And for an uplink partial bandwidth b on a carrier f of a serving cell c, the uplink power (total uplink...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/14H04W52/28
CPCH04W52/146H04W52/28
Inventor 孙晓东孙鹏潘学明
Owner VIVO MOBILE COMM CO LTD
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