UE Measurement Gap Reset for Dual Connectivity Synchronization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In next-generation mobile communication systems, particularly 5G, the current core network architecture is inadequate to support ultra-reliable and low-latency communications (URLLC) services due to high latency and reliability requirements, which are not met by legacy LTE/LTE-A core networks.
Innovation Solution
The proposed solution involves a method for a user equipment (UE) supporting dual connectivity between LTE and NR, where the UE receives information about synchronization signal blocks from one network system to measure timing differences and reset measurement gaps, allowing efficient detection of synchronization signals, and includes a processor to control the transceiver for this process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the UE uses legacy measurement gap settings in dual connectivity scenarios, then the measurement process is simple, but the synchronization signal detection is inefficient and latency is high
Solution Approach 1:
The patent applies preliminary action by having the network pre-configure measurement gap patterns and synchronization signal block information before the UE needs to perform measurements. The gNB provides measurement gap configuration including offset values and duration parameters in advance, allowing the UE to efficiently detect synchronization signals without complex real-time calculations.
Solution Approach 2:
The patent utilizes parameter changes by dynamically adjusting measurement gap parameters (offset, duration, periodicity) based on network conditions and service requirements. The network can modify these parameters through RRC reconfiguration to optimize synchronization signal detection performance while adapting to changing operational scenarios.
2Reliability
If the UE performs frequent measurements to improve reliability, then the reliability increases, but the latency and energy consumption increase
Solution Approach 1:
The patent applies periodic action by configuring the UE to perform measurements at regular intervals defined by measurement gap patterns. Instead of continuous or frequent measurements, the UE measures synchronization signals periodically according to pre-configured gap patterns, reducing overall latency and energy consumption while maintaining reliable connection monitoring.
Solution Approach 2:
The patent uses partial action by having the UE perform measurements only during specific measurement gaps rather than continuously. The measurement gap configuration provides just enough measurement opportunities to maintain reliability without excessive measurements, optimizing the balance between reliability and latency.
3Reliability
If the measurement gap duration is extended to capture more synchronization signals, then the detection reliability improves, but the impact on data transmission increases
Solution Approach 1:
The patent applies parameter changes by allowing flexible configuration of measurement gap duration and offset parameters. The network can adjust these parameters to optimize the balance between detection reliability and data transmission efficiency based on specific service requirements, such as using shorter gaps for eMBB and longer gaps for URLLC scenarios.
Solution Approach 2:
The patent utilizes dynamics by making measurement gap configuration adaptable and reconfigurable. The network can dynamically adjust measurement gap parameters through RRC signaling to match changing service demands, allowing the system to optimize for either reliability or productivity depending on current operational requirements.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A disclosure of the present specification provides a method for performing measurement by a terminal which can establish dual connectivity to a first network system and a second network. The method may comprise the steps of: receiving, from a first cell of the first network system, first information relating to a synchronization signal block for a connection to a second cell of a second network system; measuring a time difference between a timing of the first cell and a timing of the second cell; transmitting information on the time difference to the first cell; receiving, from the first cell, second information updated for the synchronization signal block of the first information; and re-configuring a measurement gap for receiving the synchronization signal block on the basis of the second information.