Guided Wave Couplers for Distributed Antenna Systems
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Solution Overview
Problem
The increasing demand for bandwidth in wireless communication networks due to the proliferation of smartphones and data-intensive services poses challenges for traditional macrocell base stations, which require enhanced infrastructure capabilities, particularly with the integration of small cell deployments to manage resource utilization effectively.
Innovation Solution
A guided wave communication system that utilizes electromagnetic waves bound to transmission media such as wires or dielectric materials to propagate signals efficiently, eliminating the need for electrical return paths and enabling longer-distance transmission with reduced loss, by employing couplers to launch and extract guided waves at millimeter-wave frequencies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional macrocell base stations are used to provide wireless coverage, then existing infrastructure can be utilized, but bandwidth capacity is insufficient to meet increasing data demand
Solution Approach 1:
The patent segments the wireless network infrastructure into macrocells for broad coverage and small cells (microcells, picocells) for localized high-capacity service. This segmentation allows the system to meet increasing bandwidth demand by deploying additional small cells that provide focused spectral resources without requiring complete infrastructure replacement.
Solution Approach 2:
The patent implements a nested cell structure where small cells are deployed within or near macrocell coverage areas. The small cells operate as nested units that leverage the macrocell's broader coverage while providing concentrated bandwidth capacity in specific locations, effectively combining infrastructure utilization with enhanced capacity.
2Productivity
If small cell deployment is pursued to provide additional mobile bandwidth, then bandwidth capacity increases, but system complexity increases
Solution Approach 1:
The patent designs small cells with multi-functional capabilities that can serve multiple purposes: providing localized bandwidth enhancement, offering alternative backhaul paths, and operating in coordinated fashion with macrocells. This universality reduces the need for specialized infrastructure at each small cell location.
Solution Approach 2:
The patent introduces a centralized controller that acts as an intermediary between distributed small cells and the core network. This controller manages resource allocation, coordinates small cell operations, and handles backhaul routing, thereby reducing the operational complexity at individual small cell sites while enabling flexible bandwidth management.
3Productivity
If wireless infrastructure is enhanced to address increased data usage, then bandwidth capability improves, but cost of deployment increases
Solution Approach 1:
The patent applies local quality by deploying small cells only in specific locations where bandwidth enhancement is most needed, rather than uniformly across the entire service area. This targeted approach allows the system to provide high bandwidth capability in dense urban areas while using simpler, lower-cost infrastructure in suburban and rural regions.
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 solution enhances wireless resource management by providing efficient, long-distance communication with reduced signal loss, allowing for the effective integration of small cell deployments and improved bandwidth utilization, thereby addressing the increased demand in wireless data usage.
Implementation Method 1
A guided wave communication system that utilizes electromagnetic waves bound to transmission media such as wires or dielectric materials to propagate signals efficiently
Data Source
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Figure 5A~5B
AI summary
Aspects of the subject disclosure may include, for example, receiving, by a network element of a distributed antenna system, a clock signal, a control channel and a first modulated signal at a first carrier frequency, the first modulated signal including first communications data provided by a base station and directed to a mobile communication device. The clock signal synchronizes timing of digital control channel processing by the network element to recover instructions from the control channel. The instructions in the control channel direct the network element of the distributed antenna system to convert the first modulated signal at the first carrier frequency to the first modulated signal in a first spectral segment. Other embodiments are disclosed.