UWB Preamble Configuration for Initial Synchronization and Ranging
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Solution Overview
Problem
Existing UWB devices supporting the 802.15.4ab protocol face challenges in completing preamble configuration for initial synchronization and ranging processes due to inadequate configuration methods.
Innovation Solution
A communication method and apparatus that provide a first information element to configure sequences for initial synchronization and measurement processes, including specific information to distinguish between different types of sequences and processes, enabling accurate preamble configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single preamble configuration method is used for both initial synchronization and ranging processes, then the device complexity is reduced, but the measurement precision and synchronization accuracy deteriorate
Solution Approach 1:
The patent divides the preamble configuration into separate information elements: one for initial synchronization preamble and another for ranging measurement preamble. This segmentation allows each preamble type to be independently configured with appropriate parameters, resolving the contradiction by reducing configuration complexity through structured division while maintaining high precision through dedicated optimization for each function.
Solution Approach 2:
The patent applies local quality by providing specific configuration parameters tailored to each preamble's functional requirements. The initial synchronization preamble receives configuration optimized for acquisition and timing, while the ranging preamble receives configuration optimized for distance measurement accuracy. This localized optimization ensures each component achieves its specific precision requirements without compromising the other.
2Ease of operation
If existing preamble configuration methods are used, then the ease of operation is maintained, but the adaptability to different measurement processes deteriorates
Solution Approach 1:
The patent creates a universal preamble configuration framework where a single information element structure can accommodate multiple preamble types (initial synchronization and ranging measurement) through standardized fields. This multi-functional design allows the same configuration mechanism to serve different purposes, improving adaptability while maintaining ease of operation through consistent configuration procedures across different measurement processes.
3Device complexity
If single-fragment preamble configuration is used, then the device complexity is reduced, but the reliability in dynamic channel environments deteriorates
Solution Approach 1:
The patent segments the ranging preamble into multiple fragments, where each fragment can be independently transmitted and received. This fragmentation improves reliability in dynamic channel environments by allowing selective reception of intact fragments and enabling error correction through multiple copies, while the structured organization of fragments maintains manageable device complexity through standardized processing procedures.
Data Source
AI summary
The present disclosure relates to communication methods and communication apparatuses. One example method is applied to an ultra-wideband-based wireless personal area network system that includes an 802.15 series protocol, for example, an 802.15.4a protocol, an 802.15.4z protocol, or an 802.15.4ab protocol. In the example method, a first communication apparatus determines a first information element, where the first information element includes at least one of first information or second information, the first information is used to configure a first sequence, the first sequence is used for initial synchronization of a second communication apparatus, the second information is used to configure a second sequence, and the second sequence is used in a first measurement process between the first communication apparatus and the second communication apparatus. The first communication apparatus sends the first information element to the second communication apparatus.