Wireless Frequency Measurement Timing for Carrier Aggregation Setup
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently providing services due to the need for rapid frequency measurement and reporting in idle or inactive modes, which affects the configuration of carrier aggregation and dual connectivity in mobile communication systems.
Innovation Solution
A method and apparatus for user equipment (UE) to perform frequency measurement and reporting in idle or inactive modes, including receiving configuration information, starting a timer, and determining whether to continue measurement based on response messages, with specific procedures for transitioning between modes and handling measurement configuration information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If frequency measurement is performed rapidly in idle or inactive modes, then the configuration speed of carrier aggregation and dual connectivity is improved, but the complexity of measurement management and timer handling increases
Solution Approach 1:
The system performs frequency measurement in advance while the UE is in idle or inactive mode, before the actual connection is established. This preliminary measurement action allows the network to have frequency information ready when the UE transitions to connected mode, enabling faster configuration of carrier aggregation and dual connectivity without delaying the service setup.
Solution Approach 2:
A timer mechanism is introduced as an intermediary to manage the measurement configuration information. The timer automatically controls the validity period of measurement results and triggers the transition from idle/inactive to connected mode at appropriate times, simplifying the overall management complexity by using a time-based automated control mechanism rather than complex manual management.
2Measurement precision
If measurement configuration information is retained for extended periods, then measurement accuracy is improved, but the loss of time for mode transition and configuration increases
Solution Approach 1:
Frequency measurement is performed in advance during idle or inactive modes, capturing frequency information before the UE needs to transition to connected mode. This preliminary action ensures that measurement results are fresh and accurate when needed, eliminating the need for delayed measurements that would increase configuration time.
Solution Approach 2:
The system skips the time-consuming step of performing frequency measurement after connection establishment by having already completed the measurement during idle/inactive modes. This allows the network to directly proceed with configuration using pre-obtained measurement results, significantly reducing the time loss associated with mode transition and configuration.
3Extent of automation
If timer-based measurement management is implemented, then the automation of measurement configuration is improved, but the device complexity for timer handling increases
Solution Approach 1:
The timer mechanism operates autonomously to manage measurement configuration information. It automatically starts when measurement configuration is received, automatically expires after a predetermined period, and automatically triggers the transition to connected mode or deletes configuration information. This self-service operation minimizes the need for complex external management logic, as the timer handles the automation independently.
Solution Approach 2:
The system uses periodic timer expiration to automatically manage the lifecycle of measurement configuration information. The timer is set to expire after a predetermined period, creating a regular, predictable cycle for measurement validation and mode transition. This periodic action simplifies automation by using time-based triggers rather than complex event-driven logic.
Data Source
AI summary
A method, performed by a user equipment (UE), of performing measurement includes receiving measurement configuration information for measurement in an idle mode or an inactive mode from a base station, starting a timer based on the measurement configuration information, and performing measurement in the idle mode or the inactive mode while the timer running, wherein, when the timer expires in the idle mode or the inactive mode, the measurement configuration information is deleted.