NR Conditional Cell Measurement for UE Power and Signaling Control
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Solution Overview
Problem
In the New Radio (NR) communication system, user equipment (UE) faces challenges in determining when to start or stop measuring cells related to conditional triggers, leading to potential cell management failures and increased power consumption.
Innovation Solution
A measurement method and configuration method for UE and network devices that allow UE to start and stop measurements of target objects based on preset trigger events such as cell handover success or secondary cell group access success, optimizing power consumption and reducing signaling overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UE continues measurement of relevant cells in conditional trigger mode, then cell management reliability is improved, but power consumption increases
Solution Approach 1:
The measurement configuration is made dynamic by introducing trigger events that dynamically start or stop measurements based on network conditions. The UE transitions between measurement states (active/inactive) based on whether trigger events are satisfied, allowing the system to adapt measurement behavior to current operational needs rather than maintaining continuous measurement.
Solution Approach 2:
The network pre-configures trigger events and measurement parameters in advance through RRC reconfiguration messages. The UE prepares measurement configurations beforehand but only executes measurements when predefined trigger conditions are met, such as when entering specific radio conditions or when certain network events occur.
2Use of energy by moving object
If the UE stops measurement of relevant cells in conditional trigger mode, then power consumption is reduced, but cell management reliability deteriorates
Solution Approach 1:
The system implements feedback mechanisms where the UE monitors trigger events and provides measurement reports to the network when conditions are satisfied. The network can adjust measurement configurations based on received reports, creating a closed-loop system that maintains reliability while optimizing power consumption through conditional measurement activation.
Solution Approach 2:
The UE autonomously manages measurement execution based on pre-configured trigger events without requiring continuous network control. When trigger conditions are satisfied, the UE automatically starts or stops measurements according to the configured rules, reducing signaling overhead while maintaining measurement reliability.
3Measurement precision
If the network configures measurement reports through RRC connection reconfiguration messages, then measurement precision is improved, but signaling overhead increases
Solution Approach 1:
The patent extracts only the essential measurement configuration elements needed for conditional triggering, separating them from full measurement report configurations. The network configures specific trigger events and associated measurement parameters without requiring complete measurement report setups, reducing signaling overhead while maintaining necessary measurement precision.
Solution Approach 2:
The system changes measurement configuration parameters dynamically based on trigger events. Instead of maintaining fixed comprehensive measurement configurations, the network adjusts measurement parameters (such as measurement objects, report configurations, and thresholds) according to current network conditions and trigger event satisfaction, reducing signaling overhead while preserving measurement precision when needed.
Data Source
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AI summary
The present disclosure provides a measurement method, a measurement configuration method, a user equipment and a network device. The method includes: receiving measurement object configuration information; when adopting conditional trigger cell management, according to the measurement object configuration information, starting measurement of a target object; wherein the target object is at least one of objects indicated by the measurement object configuration information; when satisfying a preset trigger event, determining whether to stop measurement of at least one object in the target object.