Publish-Subscribe Broker Networks for Low-Latency Broadband Routing
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Solution Overview
Problem
Existing wireless networks face challenges in meeting bandwidth demands due to inter-cell interference, backhaul bandwidth overutilization, and latency issues, particularly in providing video services and managing ad hoc deployments for government and emergency use.
Innovation Solution
Implementing a centralized optimization server and local optimization servers within LTE, 3G, WiFi, or Ethernet networks to reduce latency and increase bandwidth by transferring application functionality directly to local servers, using publish-subscribe broker services and managing mobile device handovers to maintain service continuity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a centralized server is deployed far from user access points, then network management is simplified, but latency increases and bandwidth utilization deteriorates
Solution Approach 1:
The patent segments the centralized server functionality into distributed optimization servers deployed at multiple strategic locations within the network (e.g., at core routers, aggregation points, and access nodes). This segmentation reduces the distance between service delivery points and users, thereby reducing latency while maintaining manageable complexity through modular deployment.
Solution Approach 2:
The patent introduces a hierarchical dimension to server deployment, organizing optimization servers across multiple network levels (core, aggregation, access). This multi-dimensional deployment strategy allows simultaneous optimization of both management simplicity (through hierarchical control) and latency (through proximity-based service delivery).
2Adaptability or versatility
If external servers are deployed far from the wireless network, then network integration is simplified, but service delivery latency increases
Solution Approach 1:
The optimization servers are designed with multi-functionality, serving both as network management points and as application service delivery points. These servers can host multiple applications and services simultaneously, providing versatile network integration capabilities while maintaining close proximity to users for low-latency service delivery.
Solution Approach 2:
The patent introduces optimization servers as intermediary components between the wireless access network and external packet data networks. These intermediary servers buffer, process, and forward data packets, reducing end-to-end latency while maintaining flexible integration with various external networks through standardized interfaces.
Data Source
AI summary
A system including a server and a wireless RF access node connected to a communication network is provided. The server provides a first publish-subscribe broker of one or more publish-subscribe brokers forming part of a publish-subscribe broker network. The server connects to the wireless RF access node. A first entity connects via the wireless RF access node to the first publish-subscribe broker using a unicast IP address and thereafter publishes data packets. A second entity connects to the publish-subscribe broker network via any of the one or more publish-subscribe brokers. The server provides packet distribution services via the first publish-subscribe broker for the first entity, the publish-subscribe broker network routes communications from the first entity to the second entity when the second entity is subscribed; and the data packets published by the first entity are routed through the publish-subscribe broker to which the second entity is connected.