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Power control method, device, terminal and network equipment

A technology of network equipment and power control, which is applied in the field of wireless communication and can solve the problem of untargeted transmission power

Active Publication Date: 2021-05-14
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that the base station configures the transmission power of the terminal when performing D2D communication in the prior art for relay or D2D communication scenarios, the transmission power is not targeted, the embodiment of the present invention provides a power control method, device, terminal and network equipment

Method used

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  • Power control method, device, terminal and network equipment
  • Power control method, device, terminal and network equipment
  • Power control method, device, terminal and network equipment

Examples

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Embodiment 1

[0066] Please refer to image 3 , which shows a flowchart of a power control method provided by an embodiment of the present invention. The method may include the following steps.

[0067] Step 301, the first terminal acquires power control information, where the power control information is information used to control the transmit power of the first terminal when communicating with the second terminal.

[0068] Wherein, a first communication link is established between the first terminal and the second terminal.

[0069] Power control information includes the following possible implementations:

[0070] 1. The power control information includes the transmit power used by the first terminal when communicating with the second terminal.

[0071] In an example, the adopted transmit power is determined by the second terminal. Optionally, the adopted transmit power is determined by the second terminal according to a received power value, where the received power value is a powe...

Embodiment 2

[0090] Please refer to Figure 4 , which shows a flowchart of a power control method provided by another embodiment of the present invention. The method may include the following steps.

[0091] In step 401, the network device determines power control information, where the power control information is information used to control the transmit power of the first terminal when communicating with the second terminal.

[0092] Wherein, a first communication link is established between the first terminal and the second terminal.

[0093] Power control information includes the following possible implementations:

[0094] 1. The power control information includes the transmit power used by the first terminal when communicating with the second terminal.

[0095] Wherein, the adopted transmit power is determined by the network device according to the received power value, which is the power value of the signal sent by the first terminal on the first communication link received by th...

Embodiment 3

[0108] Please refer to Figure 5 , which shows a flowchart of a power control method provided by another embodiment of the present invention. The method may include the following steps.

[0109] Step 501, the second terminal determines power control information, where the power control information is information used to control the transmit power of the first terminal when communicating with the second terminal.

[0110] Wherein, a first communication link is established between the first terminal and the second terminal.

[0111] Power control information includes the following possible implementations:

[0112] 1. The power control information includes the transmit power used by the first terminal when communicating with the second terminal.

[0113] Optionally, the adopted transmit power is determined by the second terminal according to a received power value, where the received power value is a power value received by the second terminal or network equipment of a signal s...

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Abstract

A power control method, device, terminal, and network equipment, relating to the technical field of wireless communication, the method comprising: a first terminal acquires power control information, and the power control information is used to control the first terminal when communicating with a second terminal information about the transmit power; determine the target transmit power according to the power control information; and send the first data to the second terminal according to the target transmit power. A first communication link is established between the first terminal and the second terminal. The present invention solves the problem in the prior art that the base station configures the transmission power of the terminal when performing D2D communication for relay or D2D communication scenarios; it realizes targeted indication for different terminals when performing D2D communication Transmit power to improve the effect of power control. This solution can be applied to communication scenarios between vehicle devices, such as Internet of Vehicles communication.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a power control method, device, terminal and network equipment. Background technique [0002] A device-to-device (Device to Device, D2D) communication technology is a technology for direct communication between terminals. Different from the cellular communication technology, the data exchanged between terminals does not need to be transmitted through the base station, but directly through the air interface between the terminal and the terminal, thereby reducing the dependence of the terminal on the network and reducing the network forwarding to a certain extent. delay and network load. [0003] In order to expand network coverage, the purpose of providing network services for terminals outside the network coverage of the base station can be achieved based on the D2D technology. Such as Figure 1A As shown, the base station 11 and the relay terminal 12 com...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/04
CPCH04W52/245H04W52/383H04W52/386H04W4/70H04W52/242H04W52/243H04W52/32H04W52/54H04W72/0473
Inventor 王宏权威
Owner HUAWEI TECH CO LTD
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