Measurement Task Processing in Carrier Aggregation Systems
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In carrier aggregation systems, there is uncertainty in measurement task processing during handover or reconstruction, leading to differences between base station and UE measurement task configurations, causing system resource waste and incorrect measurement results.
Innovation Solution
A method and system for processing measurement tasks that involve deleting or modifying measurement tasks related to secondary cells during reassignment or handover, ensuring consistency between source and target cells by modifying or keeping measurement tasks based on frequency and carrier identity configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If measurement task processing is performed during handover or reconstruction in carrier aggregation systems, then measurement results can be obtained, but uncertainty arises leading to differences between base station and UE measurement task configurations
Solution Approach 1:
The patent applies preliminary action by having the UE perform measurement task processing in advance during handover or reconstruction. The UE proactively deletes or modifies measurement tasks related to source secondary cells before completing the handover, ensuring that measurement task configurations at the UE match those at the target base station without requiring additional signaling exchange.
Solution Approach 2:
The patent implements self-service by enabling the UE to autonomously manage its own measurement task configurations during handover. The UE independently determines which measurement tasks to delete or modify based on carrier frequency and cell identity comparisons, without requiring explicit instructions from the base station, thereby eliminating configuration inconsistencies.
2Reliability
If measurement task processing is performed during handover, then measurement consistency can be achieved, but system resources are wasted due to uncertainty and reconfiguration
Solution Approach 1:
The patent extracts and removes measurement tasks that are no longer needed during handover. The UE identifies measurement tasks related to source secondary cells and deletes them, taking out unnecessary measurement configurations that would otherwise consume system resources and cause inconsistency, thereby optimizing resource utilization.
3Measurement precision
If detailed measurement task processing rules are implemented, then measurement accuracy improves, but configuration signaling increases
Solution Approach 1:
The patent applies self-service by enabling the UE to autonomously manage its own measurement task configurations during handover. The UE independently determines which measurement tasks to delete or modify based on carrier frequency and cell identity comparisons, without requiring explicit instructions from the base station, thereby eliminating configuration inconsistencies.
4Device complexity
If measurement tasks are deleted during handover, then configuration complexity reduces, but measurement coverage may be affected
Solution Approach 1:
The patent applies local quality by selectively deleting only those measurement tasks that are specific to source secondary cells, while preserving measurement tasks for primary cells and target secondary cells. This targeted approach reduces configuration complexity for obsolete measurements while maintaining measurement coverage for relevant cells, ensuring no loss of necessary measurement capabilities.
Data Source
Figure 1~2
Figure 3
Figure 4~5a
AI summary
The present disclosure discloses a method for processing a measurement task in a carrier aggregation system, which includes: deleting all measurement tasks related to a source Secondary Cell (Scell); or deleting a measurement task related to an Scell in a deleted source Scell; or doing not delete a measurement task related to the source Scell when a source Scell is reassigned to another frequency having a measurement object, and modifying a measurement object corresponding to the measurement task related to the source Scell to a measurement object of the reassigned frequency. When a source Pcell and a target Pcell are on different frequencies and the measurement object corresponding to the measurement task is a frequency on which there is the source Pcell when the frequency on which there is the target Pcell is the measurement object, the measurement object is modified to a measurement object of the frequency on which there is the target Pcell; and when the measurement object corresponding to the measurement task is the frequency on which there is the target Pcell, the measurement object is modified to a measurement object of the frequency on which there is the source Primary Cell (Pcell). The present disclosure further discloses a system for processing a measurement task in a carrier aggregation system. The present disclosure effectively decreases a configuration signaling of a measurement task and increases a utilization rate of the air interface resource.