Outband Overlay Ad-Hoc Network for Low-Latency D2D Communication
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Mobile Network Operators face challenges in accommodating the increasing demands of mobile users for data-intensive applications, particularly with the rise of IoT devices, which strains contemporary and next-generation Wi-Fi and cellular networks.
Innovation Solution
The establishment and operation of a resilient and low-latency outband mobile ad-hoc network (MANET) using heterogeneous user equipment and IoT devices, which enables direct Device-to-Device (D2D) communication, forming a multi-hop network that offloads communication from the core network, improving spectral efficiency and reducing latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If all communications take place through Base Stations in conventional cellular systems, then network control and management are simplified, but communication latency increases and spectral efficiency deteriorates
Solution Approach 1:
The patent extracts the communication function from the centralized Base Station infrastructure and places it directly at the device level through D2D communication capabilities. Devices can now communicate directly with each other without routing all traffic through Base Stations, thereby reducing latency while maintaining network manageability through selective Base Station involvement for control plane functions.
Solution Approach 2:
The patent segments the communication path into direct D2D links rather than requiring complete routing through Base Stations. This segmentation allows local communications to occur directly between devices, reducing the number of hops and intermediate nodes, thereby decreasing latency and improving spectral efficiency while Base Stations retain oversight for non-D2D traffic.
2Quantity of substance
If D2D communication is implemented on cellular spectrum (Inband), then spectrum utilization improves, but interference with existing cellular communications increases and network complexity increases
Solution Approach 1:
The patent transitions D2D communication from the licensed cellular band to the unlicensed out-of-band spectrum. This dimensional change in frequency domain allows D2D communications to coexist with cellular networks without causing harmful interference, while still achieving improved spectrum utilization by freeing up licensed spectrum for high-priority cellular traffic and using unlicensed spectrum for supplemental D2D capacity.
3Adaptability or versatility
If the number of IoT devices increases, then network coverage and connectivity options improve, but network load and complexity increase
Solution Approach 1:
The patent enables IoT devices to perform self-service through autonomous D2D communication establishment and maintenance. Devices can directly discover, connect, and communicate with each other without requiring complex centralized management for every interaction. This self-service capability allows the network to scale with increasing IoT devices while maintaining manageable complexity, as devices handle their own connectivity needs locally.
4Reliability
If multi-hop D2D networks are established, then network resilience and coverage improve, but latency and complexity increase
Solution Approach 1:
The patent implements dynamic path selection in multi-hop D2D networks, where routing decisions are made in real-time based on current network conditions, device availability, and traffic requirements. This dynamic approach allows the network to select optimal paths that minimize latency while maintaining resilience, adapting quickly to changing conditions rather than relying on static multi-hop routes.
Data Source
AI summary
The invention comprises a method for establishing and operating a resilient and reliable overlay ad-hoc communication network of heterogeneous end devices, comprising the steps of sending (200) a connection request signal by respectively each end device; establishing (201) pairwise connection links between at least a selection of the end devices under usage of the connection request signals thereby creating the ad-hoc communication network, characterised in that a policy is applied (202), providing a set of rules indicating the discovery and connection criteria for establishing (201) pairwise connection links and routing; as well as operating (203) an underlying real-time information streaming network platform using the created ad-hoc communication network. The invention also comprises a system arrangement of the foregoing method, as well as an end device to operate the method and a computer program likewise programmed as such.