5G Measurement Gap Activation via MAC CE
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently activating and managing measurement gaps in 5G communication systems, particularly for low latency measurement and positioning purposes.
Innovation Solution
The method involves transmitting UECapabilityInformation to the base station, including support for low latency measurement gap activation, and receiving RRCReconfiguration messages to set up and activate measurement gaps, ensuring efficient gap operation during activated periods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If measurement gaps are configured for low latency measurement and positioning, then measurement speed and positioning accuracy are improved, but system complexity and signaling overhead increase
Solution Approach 1:
The patent applies preliminary action by pre-configuring multiple measurement gap patterns (first pattern with longer duration, second pattern with shorter duration) in advance through RRC signaling. The network can then rapidly switch between pre-configured patterns using MAC CE activation commands, avoiding the need for complex real-time gap configuration negotiations and reducing measurement latency while maintaining manageable system complexity.
2Adaptability or versatility
If multiple measurement gap patterns are configured for different scenarios, then adaptability and measurement flexibility are improved, but configuration complexity increases
Solution Approach 1:
The patent implements dynamics by enabling dynamic switching between different pre-configured measurement gap patterns through MAC CE activation commands. The network can adaptively select and activate appropriate gap patterns (first pattern or second pattern) based on real-time measurement requirements, service types, and channel conditions, providing high flexibility while keeping configuration management simple through automated switching.
Solution Approach 2:
The patent applies universality by designing a multi-functional measurement gap configuration system where a single RRC configuration message can establish multiple gap patterns that serve different measurement scenarios. The same configuration mechanism supports both long-duration gaps for comprehensive measurements and short-duration gaps for rapid measurements, making the system universally applicable to various measurement needs without requiring separate configuration procedures.
3Measurement precision
If measurement gaps are activated for positioning tasks, then positioning accuracy is improved, but terminal power consumption increases
Solution Approach 1:
The patent applies periodic action by configuring measurement gaps as periodic intervals rather than continuous operation. The terminal activates measurement gaps only during scheduled periods when positioning measurements are required, allowing the radio frequency components to remain inactive during non-measurement periods. This periodic activation significantly reduces power consumption compared to continuous measurement while maintaining positioning accuracy through regular measurement updates.
Data Source
AI summary
The method includes receiving, by the terminal from a base station the RRCReconfiguration includes a one or more gap configuration and a MAC-CellGroupConfig and a one or more uplink bandwidth part configuration, each of the one or more gap configuration includes an identifier of the gap, triggering a Scheduling Request for a first MAC CE if the first MAC CE has been triggered and not cancelled and if uplink shared channel resources are not available for a new transmission, performing, by the terminal, Scheduling Request transmission based on a specific first configuration and a specific second configuration and transmitting, by the terminal to the base station to request activation of a first gap, the first MAC CE, wherein the specific first configuration is the first configuration corresponding to the first identifier1 and the specific second configuration is the second configuration associated with the specific first configuration.