Hybrid UWB DL-TDoA Ranging Blocks for FiRa-Omlox Coexistence
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Solution Overview
Problem
The co-existence and operation of FiRa and omlox UWB systems are challenging due to signaling collisions, as both standards have different ranging block structures, leading to performance losses.
Innovation Solution
A hybrid FiRa-omlox environment is established with a central entity determining a rounding split for idle and active ranging rounds, generating synchronized ranging blocks for both FiRa-compatible and omlox-compatible anchors, and sending these blocks to ensure compatibility and prevent collisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If FiRa and omlox systems operate independently with their own ranging block structures, then each standard maintains its native performance and security characteristics, but signaling collisions occur leading to performance losses in hybrid environments
Solution Approach 1:
The patent segments the ranging block structure into distinct FiRa and omlox portions with separate timing parameters. FiRa ranging rounds occur during specific time slots while omlox ranging rounds occur during other time slots, preventing signal collisions while maintaining both standards' native performance characteristics
Solution Approach 2:
The patent introduces a hybrid ranging block structure as an intermediary framework that coordinates FiRa and omlox operations. This hybrid structure acts as a mediator that schedules and separates the signaling of both standards, eliminating collisions while allowing both to operate in the same environment
2Adaptability or versatility
If a hybrid FiRa-omlox environment is created to enable co-existence, then signaling collisions are prevented, but system complexity increases due to synchronized ranging block requirements
Solution Approach 1:
The patent implements dynamic ranging block structures where the FiRa and omlox portions can be independently configured and adjusted. The synchronization mechanism adapts timing parameters based on the specific requirements of each standard, allowing flexible co-existence without rigid fixed structures
Solution Approach 2:
The patent resolves complexity by operating in the time dimension, separating FiRa and omlox signaling into different time slots within the hybrid ranging block. This temporal separation allows both standards to coexist without spatial or structural interference, managing complexity through time-based organization
3Measurement precision
If deterministic omlox signaling procedures are used for industrial applications, then location tracking precision is maintained, but compatibility with opportunistic FiRa consumer devices is reduced
Solution Approach 1:
The patent creates a universal hybrid ranging block structure that can accommodate both deterministic omlox signaling for industrial precision applications and opportunistic FiRa signaling for consumer devices. The hybrid structure serves multiple functions by supporting both signaling paradigms within a single synchronized framework
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach allows for efficient coexistence of FiRa and omlox systems, maintaining the accuracy and performance of both, enabling seamless operation in hybrid environments without disrupting native DL-TDoA functions.
Implementation Method 1
downlink time difference of arrival structure for ultra-wide band ranging
Data Source
AI summary
The present disclosure is directed to signaling procedures for enabling co-existence of omlox and FiRa UWB standards. In one aspect, a method includes determining, for each of a plurality of ranging blocks to be used by one of a plurality of anchors in a hybrid FiRa-omlox environment, a corresponding rounding split between corresponding idle ranging rounds and active ranging rounds, the plurality of anchors including at least one FiRa-compatible anchor and at least one omlox-compatible anchor; generating each of the plurality of ranging blocks using the corresponding rounding split; and sending the plurality of ranging blocks to the plurality of anchors.