Wireless Base Station Integration with Passive Optical Network
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Solution Overview
Problem
Current access network solutions require dedicated wireline connections and additional equipment for wireless services, leading to high costs and complex management, especially in scenarios with heavy traffic or rural areas where traditional wireline connections are unavailable.
Innovation Solution
Integrating wireless base stations at the central office using Gigabit PON infrastructure, allowing wireless signals to be transmitted in parallel with PON signals through the same fiber link, utilizing multiplexing schemes like sub-carrier modulation (SCM) and wavelength-division multiplexing (WDM) to efficiently utilize existing network resources and reduce costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dedicated wireline connections and additional equipment are used for wireless services, then service reliability is improved, but device complexity and cost increase
Solution Approach 1:
The patent combines wireless base station functionality with existing PON infrastructure by integrating the base station into the optical network unit. This merging eliminates dedicated wireline connections and separate equipment, reducing device complexity while maintaining service reliability through the shared PON network.
Solution Approach 2:
The PON infrastructure is designed to serve multiple functions simultaneously - providing both traditional wireline services and wireless backhaul connections. The optical network unit functions as both a PON terminal and a wireless base station, enabling universal service delivery through a single multi-functional platform.
2Reliability
If dedicated fiber links are deployed for each base station, then service quality is improved, but cost increases
Solution Approach 1:
Multiple wireless base stations share a common PON fiber infrastructure rather than each having dedicated fiber links. The optical network units are connected to the central office through shared PON fibers, reducing the total quantity of fiber required while maintaining service quality through the high-capacity optical network.
Solution Approach 2:
The PON fiber network serves dual purposes - providing broadband access to customers and carrying wireless backhaul traffic. This multi-functional use of the same fiber infrastructure eliminates the need for separate dedicated fiber links for each base station, reducing material requirements while maintaining service quality.
3Ease of operation
If wireless and wireline networks are treated separately with dedicated links, then network management is simplified, but cost increases
Solution Approach 1:
The patent merges wireless and wireline network management by integrating the base station control functions into the PON network management system. A single management platform oversees both PON and wireless services, reducing equipment quantity and simplifying operations through unified management while maintaining the ability to manage each network type independently when needed.
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 simplifies network management, reduces equipment and maintenance costs, and enables cost-effective delivery of broadband wireless services to both portable and fixed customers, while improving network performance and resilience by maximizing existing infrastructure utilization.
Implementation Method 1
utilizing multiplexing schemes like sub-carrier modulation (SCM) and wavelength-division multiplexing (WDM)
Implementation Method 2
utilizing multiplexing schemes like sub-carrier modulation (SCM) and wavelength-division multiplexing (WDM)
Implementation Method 3
an optical receiver is used at the base station indoor units
Data Source
AI summary
A network system and method include a wireless base station integrated at a central office of a service provider. The wireless base station is configured to provide portable and fixed services to customers. A passive optical network is coupled to the wireless base station at the central office to provide a link to extend an antenna for wireless operations of the wireless base station to a remote site such that a wireless signal from the wireless base station is transmitted in parallel with a passive fiber network signal through the link.