Frequency-Translating Repeater for Licensed-to-Unlicensed Coverage
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Solution Overview
Problem
Wireless communications systems face challenges in signal attenuation and interference due to complex environments, necessitating improvements in signal coverage, efficiency, and spectral diversity, particularly in scenarios where direct paths are obstructed.
Innovation Solution
Implementing a frequency translating repeater that converts signals from a licensed frequency spectrum to an unlicensed spectrum, allowing for improved signal transmission without additional time-frequency resources in the licensed band.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a repeater is deployed to extend coverage in obstructed environments, then signal coverage and reliability are improved, but additional time-frequency resources in the licensed band are consumed
Solution Approach 1:
The repeater changes the frequency parameter by translating signals from licensed spectrum to unlicensed spectrum, allowing coverage extension without consuming additional licensed band resources
Solution Approach 2:
The repeater acts as an intermediary device that receives signals from the network entity, translates them to unlicensed spectrum, and forwards them to user equipment, enabling resource-efficient coverage extension
2Quantity of substance
If frequency translation from licensed to unlicensed spectrum is implemented, then channel usage in licensed bands is reduced, but device complexity increases
Solution Approach 1:
The repeater performs frequency translation by changing the spectral parameter of signals from licensed to unlicensed bands, reducing licensed channel usage while managing complexity through standardized translation processes
3Object-generated harmful factors
If signals are transmitted in unlicensed spectrum by the repeater, then interference is prevented and spectral diversity is improved, but measurement and detection difficulty increases
Solution Approach 1:
The repeater serves as an intermediary that translates signals to unlicensed spectrum, providing spectral diversity and preventing interference while maintaining detectability through coordinated communication with the network entity
Solution Approach 2:
By changing the frequency spectrum parameter to unlicensed bands, the system achieves spectral diversity and interference avoidance, with the network entity configured to properly detect and measure the translated signals
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 enhances signal quality and reduces channel usage in licensed bands by utilizing frequency diversity, preventing interference and extending coverage areas.
Implementation Method 1
obtaining a first configuration that indicates one or more first backhaul link transmission opportunities for translating one or more signals from a first frequency spectrum to a second frequency spectrum
Data Source
AI summary
Certain aspects of the present disclosure provide techniques for wireless communications via a frequency translating repeater. An example method for wireless communications by an apparatus includes obtaining a first configuration that indicates one or more first backhaul link transmission opportunities for translating one or more signals from a first frequency spectrum to a second frequency spectrum, wherein the first frequency spectrum is different from the second frequency spectrum; and sending a first signal to one or more network entities via the second frequency spectrum based on a second signal from one or more user equipment (UEs) via the first frequency spectrum.