Guided Wave Couplers for Millimeter-Wave Propagation Loss Reduction
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Solution Overview
Problem
The increasing demand for bandwidth in wireless communication due to the proliferation of smartphones and portable devices poses challenges for traditional macrocell base stations, which require higher bandwidth capabilities, and existing infrastructure struggles to efficiently manage wireless resources, especially in providing broadband access to homes and businesses.
Innovation Solution
A guided wave communication system that utilizes electromagnetic waves bound to a transmission medium, such as wires, to transmit data without the need for an electrical return path, allowing for efficient propagation of signals over long distances with reduced loss, using couplers to launch and extract guided waves at millimeter-wave frequencies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If traditional macrocell base stations are used to provide wireless coverage, then existing infrastructure can be utilized, but bandwidth capability is insufficient to meet increasing data demands
Solution Approach 1:
The patent segments the wireless network into macrocells for broad coverage and small cells (microcells, picocells, femtocells) for localized high-capacity service. This segmentation allows the system to meet increasing data demands by deploying additional small cells that provide enhanced bandwidth capability in specific areas without replacing the entire macrocell infrastructure.
Solution Approach 2:
The patent introduces a vertical dimension to network deployment by layering small cells above and around macrocells in the three-dimensional space. This dimensional approach enables the system to accommodate increased bandwidth requirements by utilizing spatial layers rather than solely expanding horizontal coverage.
2Quantity of substance
If small cell deployment is pursued to provide additional mobile bandwidth, then bandwidth capability increases, but system complexity and deployment difficulty increase
Solution Approach 1:
The patent designs small cells with multi-functionality to reduce deployment complexity. These cells can serve multiple purposes including providing broadband wireless access, delivering mobile data services, and offering backhaul connectivity. This universal design simplifies the network architecture by consolidating functions into single nodes rather than requiring separate dedicated infrastructure for each function.
Solution Approach 2:
The patent introduces gateway nodes as intermediary elements that simplify the integration of small cells into the existing network. These gateways act as mediators between small cells and the core network, handling functions such as IP address allocation, routing, and protocol translation. This intermediary layer reduces the operational complexity of managing numerous small cells by centralizing control and simplifying network management.
3Loss of energy
If guided wave communication using transmission medium is used, then propagation loss is reduced and long distance transmission is enabled, but the transmission medium must be physically installed throughout the network
Solution Approach 1:
The patent introduces wireless backhaul links as intermediary connections between small cells and the core network, eliminating the need for physical transmission medium throughout the entire network. This approach allows guided wave communication to be used where physically feasible (between closely spaced nodes) while using wireless transmission for longer hops, thereby reducing overall installation complexity while maintaining low propagation loss.
Solution Approach 2:
The patent creates a dynamic network architecture where the choice between wired and wireless backhaul connections is flexible and can be adapted based on deployment conditions. Small cells can dynamically select their backhaul interface (wired or wireless) based on factors such as distance to core network, available infrastructure, and traffic requirements. This dynamic approach allows the system to optimize between propagation loss and installation complexity on a case-by-case basis.
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 enables efficient wireless communication by reducing propagation loss and eliminating the need for separate electrical return paths, thereby enhancing bandwidth utilization and supporting increased data demands in wireless networks.
Implementation Method 1
a guided wave communication system that utilizes electromagnetic waves bound to a transmission medium, such as wires, to transmit data
Implementation Method 2
using couplers to launch and extract guided waves at millimeter-wave frequencies
Data Source
AI summary
Aspects of the subject disclosure may include, for example, receiving, by a network element of a distributed antenna system, a reference 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 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. The reference signal is received at an out of band frequency relative to the control channel. Other embodiments are disclosed.