Terminal Ranging Mode Selection via QoS Parameter Mapping
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Solution Overview
Problem
Current technologies lack a suitable method for determining the proper ranging mode for location services in device-to-device communication, leading to suboptimal performance in measuring distances between user equipment.
Innovation Solution
A communication method where a terminal device obtains parameters such as ranging accuracy, time, and quality of service class, and uses these parameters to determine the appropriate ranging mode from a set of available modes, optimizing the ranging process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed ranging mode is used for all location services, then the system complexity is reduced, but the ranging accuracy and efficiency cannot meet diverse location service requirements
Solution Approach 1:
The patent changes the parameter of ranging mode selection by introducing a mapping relationship between quality of service parameters (accuracy, time, quality class) and ranging modes. Instead of using a fixed ranging mode, the system dynamically selects the appropriate ranging mode based on the mapped parameters, enabling adaptability while maintaining simple implementation through pre-defined mapping tables.
Solution Approach 2:
The patent applies preliminary action by pre-configuring mapping relationships between quality of service parameters and ranging modes in the terminal device. This pre-established mapping table allows the terminal to directly determine the appropriate ranging mode without complex real-time calculations, reducing selection complexity while maintaining high adaptability to different service requirements.
2Measurement precision
If more ranging modes are provided to meet diverse location requirements, then the ranging accuracy and efficiency are improved, but the device complexity increases
Solution Approach 1:
The patent manages multiple ranging modes by changing the parameter of mode selection criteria. Instead of requiring complex decision logic for choosing among multiple ranging modes, the system uses a simplified parameter mapping approach where quality of service parameters (accuracy requirements, time constraints, quality class) are directly mapped to specific ranging modes, reducing management complexity while maintaining measurement precision.
Solution Approach 2:
The patent applies local quality by tailoring the ranging mode selection to specific local requirements of different location services. Each service can have its own quality of service parameters (accuracy, time, quality class) that locally determine the appropriate ranging mode, allowing optimized performance for each service type without requiring the device to manage all possible ranging modes uniformly.
3Reliability
If the ranging mode is selected based on multiple parameters, then the location service quality is improved, but the determination process becomes more complex
Solution Approach 1:
The patent simplifies multi-parameter processing by changing the approach to parameter integration. Instead of complex multi-parameter optimization algorithms, the system uses a pre-defined mapping relationship that integrates multiple quality of service parameters (accuracy, time, quality class) into a direct ranging mode selection, maintaining location service quality while reducing processing complexity through lookup table approach.
Solution Approach 2:
The patent applies copying by using a pre-configured mapping table that copies the complex decision logic into a simplified lookup structure. The mapping table stores pre-determined relationships between quality of service parameters and ranging modes, allowing the terminal device to copy this pre-computed information directly during operation without re-executing complex determination processes, thus maintaining reliability while reducing device complexity.
Data Source
AI summary
This application provides a communication method and a communication apparatus. One example method includes: A first terminal device obtains a first parameter, where the first parameter includes at least one of first ranging accuracy, first ranging time, or a ranging quality of service class. The first terminal device determines a first ranging mode from a plurality of ranging modes based on the first parameter. The first terminal device performs ranging between the first terminal device and the second terminal device based on the first ranging mode.