SCell PUCCH De-configuration with PHR Triggering
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In carrier aggregation systems, there is a need for an efficient method to de-configure a Secondary Cell (SCell) from its PUCCH resource, as existing methods do not adequately manage power headroom reporting when PUCCH is de-configured, leading to potential power imbalances and inefficient network operations.
Innovation Solution
A method where a User Equipment (UE) configured with at least one SCell with PUCCH resource triggers a Power Headroom Report (PHR) when the PUCCH resource is de-configured from one of the SCells, ensuring accurate power headroom information is reported to the network, even after de-configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If PUCCH resource is de-configured from SCell, then device complexity is reduced, but power headroom reporting accuracy deteriorates
Solution Approach 1:
The patent triggers a Power Headroom Report (PHR) immediately when PUCCH resource de-configuration is initiated. This preliminary action ensures that the network receives updated power headroom information before the de-configuration takes effect, maintaining accurate power management throughout the transition process.
Solution Approach 2:
The patent implements feedback by reporting power headroom information to the network after PUCCH de-configuration. This feedback mechanism allows the network to maintain accurate knowledge of the UE's power status, enabling proper resource allocation and power management decisions even as the configuration changes.
2Productivity
If PUCCH resource is de-configured from SCell, then network operation efficiency is improved, but power balance deteriorates
Solution Approach 1:
The patent uses feedback by reporting power headroom information to the network after PUCCH de-configuration. This enables the network to maintain accurate power balance knowledge, allowing it to optimize resource allocation and power management decisions in response to the configuration change.
Solution Approach 2:
The patent changes the power headroom reporting parameter by triggering a PHR event when PUCCH de-configuration occurs. This parameter change ensures that the network receives updated power status information, enabling it to maintain optimal power balance despite changes in PUCCH configuration.
3Productivity
If PUCCH resource is de-configured from SCell, then resource management efficiency is improved, but information accuracy deteriorates
Solution Approach 1:
The patent triggers a Power Headroom Report (PHR) immediately when PUCCH resource de-configuration is initiated. This preliminary action ensures that the network receives updated power headroom information before the de-configuration takes effect, preventing information loss during the transition.
Solution Approach 2:
The patent implements feedback by reporting power headroom information to the network after PUCCH de-configuration. This feedback mechanism ensures that the network maintains accurate and up-to-date power headroom information, preventing information loss and enabling informed resource management decisions.
Data Source
Figure 1~2a
Figure 2b
Figure 3(a)~4
AI summary
The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device for de-configuring a cell from PUCCH resource in a carrier aggregation system, the method comprising: configuring a Secondary Cell (SCell) with Physical Uplink Control Channel (PUCCH) resource; receiving a signaling indicating that the PUCCH resource is de-configured from the SCell; de-configuring the PUCCH resource from the SCell according to the signaling; and triggering a Power Headroom Reporting (PHR) when the PUCCH resource is de-configured from the SCell.