Client Device Geohash Computation for Cellular Location Messaging
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Solution Overview
Problem
Existing geocasting systems in cellular networks are inefficient and costly, requiring complex infrastructure and server processing, which hinders scalable and low-latency delivery of location-based messages, especially in applications like autonomous vehicles.
Innovation Solution
A client device computes a geohash for its geographical location and sends it to a server, allowing for direct matching of subscriptions and publications without server-side processing, enabling efficient, scalable, and low-latency location-based messaging by relying on existing publish/subscribe protocols.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a publish/subscribe model with server-side geohash translation is used, then location-based messaging can be delivered, but the system requires customisation of the application server and is difficult to scale
Solution Approach 1:
The patent extracts the geohash computation function from the server side and relocates it to the client device. The client device independently computes geohash values for its current location and includes these in subscription requests, eliminating the need for server-side geohash translation and customisation.
Solution Approach 2:
The client device serves itself by computing the geohash for its own location and generating appropriate subscription requests. This self-service approach removes the dependency on complex server-side processing and customisation, allowing the system to scale more easily.
2Productivity
If complex infrastructure with application server processing is used, then location-based messages can be delivered, but cost and time for introduction of the service increase
Solution Approach 1:
The patent extracts the computationally intensive geohash translation function from the server infrastructure and performs it locally on the client device. This eliminates the need for complex server-side processing infrastructure and reduces the time required to deploy the service.
Solution Approach 2:
The client device performs preliminary computation of geohash values before sending subscription requests to the server. This preliminary action eliminates the need for server-side processing during message delivery, reducing both infrastructure requirements and deployment time.
3Productivity
If traditional geocasting systems are used, then location-based messages can be delivered, but latency is high due to server processing requirements
Solution Approach 1:
The patent extracts the geohash computation from the server processing path and performs it locally on the client device before sending subscription requests. This eliminates server-side translation delays and reduces overall message delivery latency.
4Productivity
If server-side processing is used for message routing, then location-based messages can be delivered, but infrastructure costs increase
Solution Approach 1:
The patent extracts the geohash computation function from the server and relocates it to the client device. This shifts the computational burden from the server to the client, reducing server processing requirements and associated infrastructure costs.
Solution Approach 2:
The client device independently computes geohash values and generates subscription requests without requiring server-side processing. This self-service approach reduces the computational resources needed on the server, lowering infrastructure costs.
Data Source
AI summary
A client device for use in a cellular network providing location-based publications using a publish/subscribe protocol. The client device determines a geographical location relevant to the client device, determines a subscription geohash, to identify an area including the geographical location relevant to the client device, and sends a subscription to a server, the subscription having a subscription name comprising the subscription geohash. Also described are a server and a method for use in a cellular network providing location-based publications using a publish/subscribe protocol.