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Method and device for triggering power headroom report

A technology for power headroom reporting and terminal equipment, which is applied in power management, wireless communication, electrical components, etc., and can solve problems such as no reporting method for side link power headroom information

Active Publication Date: 2021-11-19
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The side link in the LTE system only supports broadcasting, so there is no closed-loop power control mechanism for the side link in the LTE system, that is, there is no power headroom report for the side link
The side link in the NR system can support unicast, multicast, and broadcast, so the side link in the NR system needs a closed-loop power control mechanism, that is, the power headroom information related to the side link needs to be reported. However, there is currently no side link Method for reporting link-related power headroom information

Method used

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  • Method and device for triggering power headroom report
  • Method and device for triggering power headroom report
  • Method and device for triggering power headroom report

Examples

Experimental program
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Effect test

example 1

[0478] Example 1, the conversion of resource acquisition methods for side links and Uu links may include switching from resource acquisition methods that support Uu links to resource acquisition methods that support side links, for example: switching from resource acquisition methods that support Uu links to support The resource acquisition mode of the first mode; or, the resource acquisition mode supporting the Uu link is converted into the resource acquisition mode supporting the first mode and the resource acquisition mode of the second mode.

example 2

[0479] Example 2, switching between the resource acquisition modes of the side link and the Uu link may include switching from a resource acquisition mode supporting the side link to a resource acquisition mode supporting the Uu link. For example: the resource acquisition mode supporting the first mode is converted into the resource acquisition mode supporting the Uu link; or, the resource acquisition mode supporting the first mode and the resource acquisition mode of the second mode are converted into a resource acquisition mode supporting the Uu link.

example 3

[0480] Example 3, switching the resource acquisition mode of the side link and the Uu link may include switching the resource acquisition mode of other modes. For example: the resource acquisition mode supporting the Uu link is converted into the resource acquisition mode supporting the Uu link and the resource acquisition mode of the first mode; or, the resource acquisition mode supporting the Uu link is converted into a resource acquisition mode supporting the Uu link, The resource acquisition method of the first mode and the resource acquisition method of the second mode; or, the resource acquisition method supporting the Uu link and the resource acquisition method of the first mode are converted into the resource acquisition method supporting the first mode; or, supporting the Uu link The resource acquisition method of the link and the resource acquisition method of the first mode are converted into the resource acquisition method supporting the second mode; or, the resourc...

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PUM

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Abstract

The embodiment of the present application provides a method for triggering a power headroom report, which relates to the field of wireless communication. When a terminal device meets a PHR trigger condition, it can trigger a PHR and send the PHR to a network device. The PHR trigger condition includes any of the following: side chain or, the release of the side link connection; or, the activation of the side link of the terminal device; or, the activation of a side link carrier of the terminal device; or, the terminal device begins to have side link resources for transmitting data; or , the terminal device starts to transmit side links; or, the first timer expires, the terminal device has side link resources for transmitting new data, and for at least one activated carrier of the terminal device, the change value of the side link path loss is greater than Or equal to the first parameter value; or, the terminal device performs multicast communication with other terminal devices and meets the first condition; or, the resource acquisition mode is switched; or, the change value of the number of transmission resources is greater than or equal to the second parameter value.

Description

technical field [0001] The present application relates to the field of wireless communication, in particular to a method and device for triggering a power headroom report. Background technique [0002] The uplink power control in the wireless system is very important. Through uplink power control, it can not only ensure the quality of data sent by the terminal equipment in the cell to the network equipment, but also reduce the interference of the terminal equipment to other terminal equipment in the system. Extend the battery life of the terminal device. [0003] Power control can be divided into open loop power control and closed loop power control. Among them, the open-loop power control means that the terminal equipment decides the size of the transmission power itself without any participation of the network equipment; Power control requires the participation of network devices, and terminal devices also report their own power headroom (PH) to network devices through a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/36H04W52/24H04W52/14
CPCH04W52/146H04W52/242H04W52/365H04W52/14H04W52/24H04W52/36H04W72/12
Inventor 刘南南张向东常俊仁余唱
Owner HUAWEI TECH CO LTD