Pre-configured Measurement Gap Activation Control
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Solution Overview
Problem
The efficiency of signaling between a network and user equipment (UE) decreases when managing the activation status of pre-configured measurement gaps (P-MGs), and there is a lack of clear criteria for activating or deactivating P-MGs during bandwidth part (BWP) switching.
Innovation Solution
An apparatus and method that receive and transmit measurement gap configuration information to switch the status of pre-configured measurement gaps to activation or deactivation based on BWP switching, ensuring consistency and reducing signaling inefficiency by determining the status as deactivation when the measurement gap is not required after switching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If pre-configured measurement gaps are managed with activation/deactivation states during BWP switching, then measurement flexibility is improved, but signaling complexity increases
Solution Approach 1:
The UE autonomously determines the activation state of pre-configured measurement gaps based on BWP switching events and measurement requirements, without requiring explicit network signaling. The network only provides pre-configuration, and the UE self-manages activation/deactivation based on local conditions, thereby reducing signaling complexity while maintaining measurement flexibility
Solution Approach 2:
The measurement gap configuration is pre-configured by the network in advance, including multiple P-MG configurations with different parameters. When BWP switching occurs, the UE can directly activate appropriate pre-configured gaps without waiting for new configuration signaling, improving measurement flexibility while avoiding repeated signaling overhead
2Stability of the object's composition
If clear criteria are established for activating/deactivating P-MGs during BWP switching, then measurement consistency is improved, but control complexity increases
Solution Approach 1:
The patent establishes clear parameter-based criteria for P-MG activation/deactivation: when BWP switching occurs and the new BWP frequency does not overlap with the measurement frequency, the P-MG is deactivated; otherwise it remains active. These parameter changes (frequency overlap detection) provide simple, objective rules that ensure measurement consistency without complex control logic
Solution Approach 2:
The UE autonomously applies the activation/deactivation criteria based on local frequency information and BWP configuration, without requiring network control decisions. This self-service approach ensures consistent behavior according to predetermined rules while minimizing control complexity between network and UE
3Reliability
If additional signaling operations are implemented to manage P-MG status, then signaling accuracy is improved, but signaling overhead increases
Solution Approach 1:
The UE independently determines P-MG activation status based on BWP switching events and frequency overlap detection, eliminating the need for additional confirmation signaling between network and UE. The network only provides initial pre-configuration, and the UE self-manages subsequent activation/deactivation decisions, ensuring accuracy through autonomous logic while minimizing signaling overhead
Solution Approach 2:
The patent extracts the P-MG activation/deactivation control logic from the signaling process and embeds it in the UE's local decision-making mechanism. By removing the need for explicit network signaling for each activation/deactivation event, the solution reduces signaling overhead while maintaining reliability through predetermined activation criteria based on BWP and measurement frequency relationships
Data Source
AI summary
An apparatus includes a memory storing a program; and one or more processors configured to execute the program to: receive, from a base station, a radio resource control, RRC, message including a measurement gap configuration, the measurement gap configuration including information for indicating that a measurement gap is a pre-configured measurement gap; determine a state of the pre-configured measurement gap as any of activation and deactivation; control switching of a downlink bandwidth part, BWP; and determine the state of the pre-configured measurement gap as deactivation in a case where a measurement based on a synchronization signal and physical broadcast channel block, SSB, on the downlink BWP after the switching is performed and the downlink BWP after the switching is an initial downlink BWP.