Measurement Gap Combination Signaling for NR Location Scheduling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The reconfiguration of measurement gap configurations for user equipment (UE) when switching between carrier frequencies in a new radio (NR) positioning system reduces transmission efficiency due to the time-consuming nature of this process.
Innovation Solution
A method is introduced where a network device transmits multiple measurement gap combinations to UE, allowing the UE to report the active gap combination for location measurement, and the network device schedules around these active gaps, thereby avoiding frequent reconfigurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the network device reconfigures measurement gap configurations when switching between carrier frequencies, then the UE can perform accurate location measurements on different carriers, but the transmission efficiency deteriorates due to the time-consuming reconfiguration process
Solution Approach 1:
The network device pre-configures multiple measurement gap combinations (first measurement gap combination, second measurement gap combination, etc.) corresponding to different carrier frequencies before the UE needs to switch carriers. Each measurement gap combination is prepared in advance with appropriate timing and duration for its associated carrier, so when the UE needs to measure a different carrier, it can immediately activate the pre-prepared corresponding measurement gap combination without waiting for reconfiguration, thus eliminating reconfiguration delay while maintaining measurement accuracy
Solution Approach 2:
The measurement gap configuration is made dynamic and adaptable to different carrier frequencies. Instead of using a single static measurement gap configuration, the system provides multiple measurement gap combinations that can be selectively activated based on which carrier the UE is currently measuring. The network device dynamically switches between different measurement gap combinations by sending activation indications to the UE, allowing the measurement gap parameters (timing, duration, periodicity) to adapt to the specific carrier being measured, thereby maintaining measurement precision across frequency switches without requiring time-consuming reconfiguration
2Device complexity
If the network device uses a single measurement gap configuration for all carrier frequencies, then the configuration complexity is reduced, but the location measurement precision deteriorates when switching between carriers with different frequency characteristics
Solution Approach 1:
The measurement gap configuration is segmented into multiple distinct measurement gap combinations, where each combination is specifically optimized for a particular carrier frequency or frequency range. Instead of using one generic configuration for all carriers, the system divides the configuration space into multiple specialized segments (first measurement gap combination for first carrier, second measurement gap combination for second carrier, etc.). This segmentation allows each measurement gap to be precisely tuned to the specific characteristics of its associated carrier, maintaining high measurement precision while the overall system manages complexity through organized, carrier-specific configuration sets
Solution Approach 2:
Each measurement gap combination is customized with local quality optimized for its specific carrier frequency. The measurement gap parameters (such as gap duration, periodicity, and timing offset) are locally adapted to match the specific characteristics of each carrier being measured. This local optimization ensures that the measurement configuration is precisely matched to the physical layer characteristics of each carrier, improving location measurement accuracy for each specific frequency while the network device manages the multiple configurations through systematic organization and selective activation
Data Source
AI summary
A method for transmitting a measurement gap combination includes: transmitting first indication information to user equipment, where the first indication information is configured to indicate at least two measurement gap combinations, and each measurement gap combination corresponds to one carrier frequency. Then receiving second indication information from the user equipment, where the second indication information is configured to indicate a target measurement gap combination that is being used for location measurement, and the target measurement gap combination belongs to the at least two measurement gap combinations. Finally, forbidding execution of scheduling within a time period corresponding to the target measurement gap combination, and executing scheduling within a time period corresponding to the other measurement gap combination in the at least two measurement gap combinations.