Indoor RF Distribution With Uniform Output From Identical Couplers
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Solution Overview
Problem
The design and construction of indoor distribution systems are complicated by the need for varying coupling units with different coupling values due to factors like feeder length, feeder loss, and input signal strength, making it difficult to maintain uniform signal coverage and increasing construction difficulty.
Innovation Solution
The system employs remote units with signal processing modules that adjust radio-frequency signal power to a target power, using identical coupling units in each remote cascaded chain, allowing for automatic power adjustment to ensure consistent signal output, thereby simplifying design and construction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If various coupling units with different coupling values are deployed according to different requirements, then uniform signal coverage can be achieved, but the device complexity and construction difficulty increase
Solution Approach 1:
The patent changes the control parameter from fixed coupling values in hardware to dynamically adjustable coupling parameters through digital signal processing. The TPC algorithm allows the system to adaptively adjust coupling parameters based on actual signal conditions, replacing the need for multiple physical coupling units with different fixed coupling values.
Solution Approach 2:
The patent makes a single type of coupling unit capable of performing multiple functions by enabling dynamic adjustment of coupling parameters. The same physical coupling unit can adapt to different signal conditions and distance requirements through software control, eliminating the need for specialized coupling units for different scenarios.
2Manufacturing precision
If coupling units are fixed in position during system design, then signal transmission can be optimized for specific distances, but the ease of operation and field construction are reduced
Solution Approach 1:
The patent introduces dynamic adjustability to the coupling units through the TPC algorithm. Instead of fixed coupling values determined during design, the system can dynamically adjust coupling parameters during operation based on actual signal conditions, allowing flexible deployment in the field without reconfiguration of hardware positions.
Solution Approach 2:
The TPC algorithm implements feedback mechanisms that monitor signal conditions and automatically adjust coupling parameters accordingly. This allows the system to optimize signal transmission in real-time based on actual performance, eliminating the need for precise pre-planning of coupling unit positions during field construction.
3Manufacturing precision
If multiple types of coupling units are used to meet different coupling value requirements, then signal coverage can be optimized, but the loss of substance and system cost increase
Solution Approach 1:
The patent makes a single type of coupling unit capable of performing multiple functions by enabling dynamic adjustment of coupling parameters. The same physical coupling unit can adapt to different signal conditions and distance requirements through software control, eliminating the need for specialized coupling units for different scenarios.
Solution Approach 2:
The patent changes the control parameter from fixed coupling values in hardware to dynamically adjustable coupling parameters through digital signal processing. The TPC algorithm allows the system to adaptively adjust coupling parameters based on actual signal conditions, replacing the need for multiple physical coupling units with different fixed coupling values.
Data Source
AI summary
Provided are an indoor distribution system and a signal transmission method. The system includes an access unit, an extended unit, a first coupling unit, and at least one remote cascaded chain. Each remote cascaded chain includes at least one second coupling unit and at least one remote unit. The at least one second coupling unit in each remote cascaded chain is cascaded, and each remote unit is respectively connected to a corresponding second coupling unit. The first coupling unit transmits a radio-frequency signal transmitted by the extended unit to the second coupling unit. The second coupling unit transmits a radio-frequency signal of input power to the remote unit connected to the second coupling unit according to a coupling value. The remote unit adjusts the power of the radio-frequency signal from the input power to the output target power and output the adjusted radio-frequency signal.