5G NR Measurement Gap Cancellation for RRM and Throughput Balance
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Solution Overview
Problem
Measurement gaps in wireless communication systems, such as 5G NR, lead to inefficient pausing in network communication, increased latency, and reduced resource throughput due to temporary cessation of data transmission and reception for RRM measurements.
Innovation Solution
Implementing measurement gap canceling techniques based on processing time determination, using Downlink Control Information (DCI) messages to dynamically cancel measurement gaps when conditions allow, such as stable signal quality or stationary devices, thereby enabling continuous transmission and reception during gaps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If measurement gaps are scheduled for RRM measurements, then measurement functions can be performed, but network communication efficiency deteriorates due to pausing data transmission and reception
Solution Approach 1:
The patent implements dynamic measurement gap canceling where the network can dynamically cancel scheduled measurement gaps based on current channel conditions, UE mobility state, and QoS requirements. This transforms the static measurement gap schedule into a dynamic resource allocation that adapts to changing conditions, allowing measurement gaps to be canceled when measurements are unnecessary, thereby improving network communication efficiency while maintaining measurement functions when needed.
2Measurement precision
If measurement gaps are frequently scheduled to ensure accurate measurements, then measurement precision improves, but latency increases due to repeated interruptions in data transmission
Solution Approach 1:
The patent changes the parameter of measurement gap scheduling from fixed/frequent to dynamic/conditional. By monitoring channel conditions, UE mobility state, and QoS parameters, the system adjusts the measurement gap schedule in real-time, canceling gaps when measurements are unnecessary. This parameter change reduces the frequency of measurement gaps while maintaining measurement precision when actually needed, thereby reducing latency caused by repeated interruptions.
3Reliability
If measurement gaps are scheduled to support handover management, then handover reliability improves, but resource throughput decreases due to interruption of ongoing data services
Solution Approach 1:
The patent implements dynamic canceling of measurement gaps based on UE mobility state detection. When the UE is determined to be stationary or moving slowly, measurement gaps are canceled since handover is unlikely. When high mobility is detected, measurement gaps are maintained to ensure accurate handover management. This dynamic approach maintains handover reliability when needed while improving resource throughput during periods of low mobility.
4Measurement precision
If measurement gaps are scheduled for inter-frequency measurements, then RRM function accuracy improves, but data transmission interruptions increase
Solution Approach 1:
The patent changes the scheduling parameter of measurement gaps from fixed to dynamic based on QoS requirements and current data transmission status. When data transmission is active and QoS requirements are met, measurement gaps are canceled to avoid interruptions. When measurements are critical or data transmission is already interrupted for other reasons, measurement gaps are maintained. This parameter change reduces unnecessary data transmission interruptions while maintaining measurement accuracy when needed.
Data Source
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AI summary
A system and a method are disclosed for providing measurement gap canceling may be utilized in wireless communication technologies, such as 5G NR technology. Measurement gap canceling may include dynamically modify the timing and/or selection of measurement gaps to be canceled in a manner that can enhance capacity gains of wireless network devices, while limiting an impact to mobility performance. Measurement gap canceling circuitry may be implemented by a network resource (e.g., user equipment, UE, device (112), base station, etc.) that is configured to determine a measurement gap that may be optimal for canceling based on various conditions (e.g., timing of measurement gap indication(s), processing time for UE device (112), etc.), and enable transmission/reception communication during the measurement gaps (e.g., canceling the measurement gap) in a manner that may reduce latency in the wireless communication network and improve the overall user experience (e.g., reducing data interruptions) for wireless devices.