Distributed Node Indoor Emergency Call Location Routing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication technologies face challenges in providing accurate location determination for emergency calls indoors, particularly due to the limitations of GPS availability and the high costs associated with maintaining redundant 2G and 3G network infrastructure, which can result in gaps in emergency coverage and delayed or failed responses to emergency calls.
Innovation Solution
A distributed node system is implemented, where a central node communicates with distributed nodes located within buildings to relay call requests and location information to the wireless network, enabling accurate emergency service routing and call setup, even without direct access to GPS, by using a Gateway Mobile Location Center to determine location and route emergency calls effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If GPS capabilities are used for location determination, then location accuracy is improved, but device cost and complexity increase
Solution Approach 1:
The patent introduces distributed nodes as intermediary devices installed in buildings that act as mediators between mobile devices and the network. These nodes provide location information to the network without requiring GPS capabilities in the mobile device, thus improving location accuracy while keeping device complexity low
Solution Approach 2:
The patent creates a virtual representation of the physical environment by deploying distributed nodes at known locations throughout buildings. These nodes create a digital map that the network can use to determine device location, replacing the need for physical GPS hardware in each device
2Reliability
If redundant 2G and 3G network equipment is installed to provide emergency coverage, then emergency service coverage is improved, but network cost increases
Solution Approach 1:
The patent segments the network infrastructure by deploying distributed nodes independently within buildings rather than requiring complete redundant base stations. Each node operates as an independent unit that can be deployed selectively in buildings, providing emergency coverage without the need for full-scale redundant network equipment
Solution Approach 2:
The patent implements partial coverage by deploying distributed nodes only in specific buildings where needed, rather than requiring complete redundant network infrastructure everywhere. This partial deployment provides sufficient emergency coverage for critical locations while avoiding the excessive cost of universal redundant infrastructure
3Device complexity
If distributed nodes are deployed instead of full base stations, then network cost is reduced, but device complexity increases
Solution Approach 1:
The patent merges the functions of location determination and emergency call routing into a single distributed node system. The nodes perform multiple functions including providing location information, routing emergency calls, and serving as network access points, thereby reducing overall network complexity while maintaining reliable emergency service coverage
Data Source
AI summary
Distributed node systems and methods provide emergency call services to users indoors. A distributed node can be located in a building and configured to receive call requests from users in the building. The distributed node can transmit call requests to a central node that relays the call requests to a wireless network. The distributed node can also transmit node identifying information with the call request, which may be relayed to the wireless network. The wireless network can determine that a call request is a request for an emergency call and obtain location information and emergency services provider routing information based on a node identifier. The wireless network can transmit the location information to the emergency services provider using the emergency services provider routing information and set up the requested call.