Radio Transmission Frequency Reuse for Scalable Positioning
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Solution Overview
Problem
Existing radio communication systems face challenges with resource usage and scalability, particularly in two-way transmissions, which are not scalable and require multiple wideband transmissions per link, limiting the number of accurately positioned radio nodes and creating resource inefficiencies.
Innovation Solution
A method is introduced where radio units are assigned to subgroups, with distinct signal frequency sets and subsets, allowing for efficient two-way transmissions by reusing frequencies without interference, enabling more radio nodes to be tracked with the same resources and allowing for ultra-accurate positioning without artificial boundaries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If two-way transmissions are used for accurate positioning, then positioning accuracy is improved, but resource usage efficiency deteriorates due to requiring two individual wideband transmissions per link
Solution Approach 1:
The system segments radio units into different groups (first radio units and second radio units) that perform different functions. First radio units transmit positioning signals while second radio units receive them, allowing multiple links to share the same frequency resources simultaneously. This segmentation enables scalable positioning without requiring separate wideband transmissions for each link.
Solution Approach 2:
The patent creates a universal frequency pool that serves multiple positioning links simultaneously. Instead of dedicating separate frequency resources to each radio link, the same frequency resources are universally shared across all links through the group-based transmission scheme, dramatically improving resource usage efficiency while maintaining positioning accuracy.
2Measurement precision
If two-way transmissions are implemented for each radio link, then accurate distance measurement is achieved, but scalability deteriorates as the number of required transmissions increases with each additional link
Solution Approach 1:
Radio units are segmented into transmitter groups and receiver groups, where each group can simultaneously handle multiple positioning links. This segmentation allows the system to scale to many more radio nodes because the same transmission infrastructure serves multiple links in parallel rather than requiring dedicated two-way transmissions for each individual link.
Solution Approach 2:
The patent introduces a new dimensional approach by organizing radio units into functional groups that operate simultaneously on the same frequency resources. This group-based dimension allows the system to accommodate exponentially more radio nodes without proportionally increasing transmission resources, solving the scalability problem.
3Reliability
If individual wideband transmissions are used for each link, then transmission reliability is maintained, but system complexity increases due to the large number of required transmissions
Solution Approach 1:
The patent merges multiple individual transmission functions into unified group-based transmissions. Instead of managing separate transmissions for each radio link, the system combines multiple links into group transmissions where first radio units transmit to multiple second radio units simultaneously. This merging dramatically reduces system complexity while maintaining transmission reliability through the structured group protocol.
Data Source
AI summary
A method for performing radio transmissions, including assigning radio units to one subgroup of first radio units, assigning radio units to one subgroup of second radio units, assigning a signal frequency set to each subgroup of first radio units, assigning a signal frequency subset in a signal frequency set of a subgroup of first radio units to each second radio unit in a subgroup of second radio units associated with the subgroup of first radio units, wherein signal frequency subsets assigned to each second radio unit in the same subgroup of second radio units differs from each other in at least one measurement frame, transmitting, via one of the first radio units, a signal of frequencies of the assigned signal frequency set, and transmitting, via one of the second radio units, a signal of frequencies of the assigned signal frequency subset.