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Method, device and system for reporting power headroom

A technology of power headroom and power amplifier, which is applied in the field of communication and can solve problems such as the inability of user equipment to perform power headroom, and the inability of base station equipment to schedule and report.

Inactive Publication Date: 2010-12-29
CHINA ACAD OF TELECOMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0034] The PHR mechanism in the prior art is only applicable to single-carrier systems and cannot be applied to multi-carrier systems such as LTE-A. As a result, user equipment in multi-carrier systems cannot report power headroom, and base station equipment cannot report power headroom according to the power headroom reported by user equipment. Uplink Scheduling

Method used

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  • Method, device and system for reporting power headroom
  • Method, device and system for reporting power headroom
  • Method, device and system for reporting power headroom

Examples

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Embodiment Construction

[0099] The technical solutions provided by the embodiments of the present invention include judging whether to trigger PHR based on the CC or PA in the multi-carrier system, and performing independent PHR or joint PHR for the CC or PA when the trigger condition is met.

[0100] The technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Apparently, the described 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 making creative efforts belong to the protection scope of the present invention.

[0101] Such as image 3 As shown, it is a flowchart of a power headroom reporting method in Embodiment 1 of the present invention, which is applied to a multi-carrier system including user equipment...

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Abstract

The embodiment of the invention discloses a method, a device and a system for reporting power headroom. The method comprises the following steps of: judging whether to trigger power headroom reporting (PHR) by user equipment; and if the PHR is triggered, performing independent PHR or combined PHR based on a component carrier (CC) or a power amplifier (PA) by the user equipment. The independent PHR or the combined PHR is performed on the CC or the PA in the embodiment of the invention so that power headroom reporting in a multi-carrier system is realized and the base station equipment can well perform uplink scheduling according to the power headroom from the user equipment.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method, device and system for reporting power headroom. Background technique [0002] LTE (Long Term Evolution, long-term evolution) system is an evolution technology of 3G (3rd Generation, third-generation communication technology). progress. [0003] In the LTE system, in order to feed back the current transmission power of the user equipment to the base station equipment, so that the base station equipment can be configured and scheduled in time, the user equipment needs to report PH (Power Headroom, power headroom) information to the base station equipment. This reporting process is called PHR (Power Headroom Reporting, power headroom reporting), the authorized power allocated by the base station equipment to the user equipment does not exceed the PH reported by the user equipment. Specifically, the value of PH is the difference between the maximum transmit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/04H04B7/005H04B7/26
CPCH04W52/367H04L5/001H04W52/34H04L5/0007H04W72/1284H04W52/365H04W52/54H04W24/08H04W72/21H04W24/10H04W72/231
Inventor 赵亚利谌丽李国庆
Owner CHINA ACAD OF TELECOMM TECH
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