SCell Activation Reference Signal Configuration for Lower Delay

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing wireless communication systems face delays and inefficiencies in secondary cell activation due to lengthy delays in activating secondary cells, leading to suboptimal data rates and resource wastage.

Innovation Solution

A method and apparatus for configuring secondary cell activation reference signals, utilizing a trigger state indication and resource set configurations to optimize the activation process, reducing delays and improving communication efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of time

If traditional secondary cell activation procedures are used, then cell activation can be achieved, but lengthy delays occur in the activation process

Engineering Contradiction:
Improveactivation delayVSAvoiddata rate
Core Design Contradiction:
Loss of timeVSProductivity

Solution Approach 1:

The patent applies preliminary action by configuring reference signal resources and trigger states in advance before secondary cell activation is needed. The network configures multiple reference signal resource sets with associated trigger states, allowing the UE to prepare measurement resources beforehand. When activation is required, the pre-configured resources enable immediate measurement and reporting, eliminating the need for ad-hoc configuration during activation and thus reducing activation delay.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent segments the reference signal resources into multiple distinct resource sets, each associated with specific trigger states. This segmentation allows different measurement scenarios to be handled by dedicated resource sets, enabling parallel preparation of multiple activation scenarios. The segmentation of measurement resources facilitates faster switching and activation by having pre-allocated resources for different possible activation conditions.

Inventive Principle:
Principle #1Segmentation

2Productivity

If traditional secondary cell activation procedures are used, then activation can occur, but resource wastage increases due to inefficient resource allocation

Engineering Contradiction:
Improveresource utilizationVSAvoidresource consumption
Core Design Contradiction:
ProductivityVSLoss of energy

Solution Approach 1:

The patent implements dynamic resource allocation through trigger states that activate specific reference signal resource sets based on current network conditions and activation requirements. Instead of continuously allocating resources or using fixed configuration, the system dynamically selects and activates only the necessary reference signal resources when needed. This dynamic approach ensures optimal resource utilization by allocating measurement resources precisely when and where they are required for secondary cell activation.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS20260039430A1Configuration of a reference signal for secondary cell activation
Publication Date: 2026.02.05 QUALCOMM INC
  • US20260039430A1 patent drawing
  • US20260039430A1 patent drawing
  • US20260039430A1 patent drawing

AI summary

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication of a trigger state associated with a configuration for receiving one or more secondary cell (SCell) activation reference signals. The UE may receive the one or more SCell activation reference signals based at least in part on the configuration. Numerous other aspects are described.