Dual Polarized Antenna Array Transmitter Identification
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Solution Overview
Problem
Existing methods fail to effectively detect and identify transmitter usage characteristics, such as location and transmission details, for multiple transmitters operating on the same bandwidth and protocol, particularly in scenarios like cellular networks.
Innovation Solution
A system and method utilizing a receiving antenna array with dual polarized antennas, a processor, and a database to determine transmitter location and transmission characteristics by monitoring multi-access allocation information and decoding signals from control channels, while accounting for antenna array deformations and unknown polarization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple transmitters operate on the same bandwidth and protocol, then network resource utilization is improved, but transmitter identification accuracy deteriorates
Solution Approach 1:
The patent segments the identification process by utilizing dual polarization components (horizontal and vertical) to create separate measurement channels. Each polarization component provides independent phase information that can be processed separately, allowing the system to distinguish between multiple transmitters sharing the same bandwidth by resolving their unique polarization signatures and spatial angles.
Solution Approach 2:
The patent introduces an additional dimension for identification by measuring both horizontal and vertical polarization phases, effectively adding a polarization dimension to the traditional single-dimension phase measurement. This dimensional expansion enables the system to differentiate between multiple transmitters that would otherwise be indistinguishable in a single-bandwidth environment.
2Adaptability or versatility
If antenna array deformations occur, then system adaptability is improved, but measurement precision deteriorates
Solution Approach 1:
The patent implements a feedback mechanism where the processor continuously monitors phase differences from multiple polarization components and uses this information to compensate for antenna array deformations. By comparing expected phase relationships with actual measurements across different polarizations, the system can detect and correct for geometric distortions in real-time, maintaining measurement precision despite physical deformations.
Solution Approach 2:
The patent changes the measurement parameters by utilizing multiple polarization angles (horizontal and vertical) instead of relying on a single measurement geometry. This parameter diversification allows the system to maintain accurate spatial angle measurements even when the antenna array geometry changes, as the multi-parameter approach provides redundant information that can be used to correct for deformation effects.
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
Enables accurate identification of transmitter usage characteristics, including location, transmission start and end times, and data volume, even in complex wireless network environments with multiple transmitters sharing the same bandwidth and protocol.
Implementation Method 1
a receiving antenna array, each antenna in the array being dual polarized, receives signals from multiple transmitters
Implementation Method 2
Like polarized outputs from the antennas produce phase information, which is summed to remove bias error in favor of the angle of arrival component
Data Source
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AI summary
a method for identifying transmitter usage characteristics of at least one transmitter. The method includes the procedures of receiving by an array of dual polarized antennas, transmissions from a plurality of transmitters. Each one of the transmitters transmits over the same frequency band and according to the same transmission protocol. Each one of the transmitters is associated with unique multi-access information. The method further includes the procedure of receiving a control transmission from a base station. The base station employs the protocol. The control transmission at least includes a plurality of unique multi-access information respective of the transmitters. The method also includes the procedure of associating between each one of the transmitters and the respective multi-access information and identifying transmitter usage characteristics of at least one selected transmitter according to the received transmission therefrom. The transmitter usage characteristics include transmitter location characteristics and transmission characteristics.