Wireless Donor Node Route Management for Capacity Crunch
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Solution Overview
Problem
Future wireless communications networks face challenges in efficiently supporting a wide range of devices with varying data traffic profiles, particularly in preventing capacity crunches when large amounts of data are transmitted from devices and infrastructure equipment to the core network via donor infrastructure equipment.
Innovation Solution
A method is introduced where infrastructure equipment acting as a donor node receives signals and assistance information from other equipment, determines if a route change is necessary based on trigger conditions, and transmits a route change command to relay nodes to switch communication paths, ensuring efficient data transmission and preventing capacity issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If data is transmitted from devices and infrastructure equipment to the core network via donor infrastructure equipment, then connectivity coverage is expanded, but capacity crunch occurs at the donor infrastructure equipment
Solution Approach 1:
The patent segments the data transmission path by introducing relay nodes that act as intermediate hops between user equipment and the donor infrastructure equipment. This divides the total data load into multiple paths, reducing the capacity burden on any single donor node while expanding overall network coverage area.
Solution Approach 2:
The patent adds a spatial dimension to data transmission by utilizing multiple relay nodes positioned at different locations. Instead of all traffic passing through a single donor node, data is routed through multiple relay points, effectively increasing the network's capacity handling capability without requiring the donor node to handle all traffic directly.
2Quantity of substance
If multiple relay nodes are introduced to expand coverage, then network capacity is improved, but route management complexity increases
Solution Approach 1:
The patent implements feedback mechanisms where relay nodes report their status, available capacity, and routing information back to the donor infrastructure equipment. This enables dynamic route selection and management, allowing the network to automatically adjust data paths based on real-time conditions without manual intervention, thus reducing operational complexity despite having multiple relay nodes.
Solution Approach 2:
The patent utilizes parameter changes in routing decisions, such as modifying transmission parameters based on link quality, available capacity, and network conditions. By dynamically adjusting routing parameters rather than maintaining fixed complex routes, the system manages multi-relay node complexity efficiently while optimizing data transmission capacity.
3Quantity of substance
If dynamic route adjustment is implemented, then capacity crunch is prevented, but signaling overhead increases
Solution Approach 1:
The patent applies partial route adjustment rather than complete route reconfiguration. Instead of always establishing multiple potential routes and adjusting all parameters, the system only performs partial adjustments when necessary (e.g., when capacity thresholds are approached or link quality degrades). This reduces unnecessary signaling overhead while still preventing capacity crunches when needed.
Solution Approach 2:
The patent implements preliminary actions by pre-establishing multiple potential routing paths and pre-configuring relay nodes with routing information. When capacity issues arise, the system can quickly switch between pre-prepared routes without requiring extensive real-time signaling, thus reducing the overhead associated with dynamic route adjustment while maintaining the ability to prevent capacity crunches.
Data Source
AI summary
A method of controlling communications within a wireless communications network is provided. The method comprises receiving, at a first of the infrastructure equipment acting as a donor node connected to a core network part of a wireless communications network, signals representing data from a second of the infrastructure equipment over a first communications path via one or more other infrastructure equipment acting as relay nodes, receiving, at the first infrastructure equipment, assistance information from at least one of the second infrastructure equipment and the one or more other infrastructure equipment acting as the relay nodes, and determining, by one of the first infrastructure equipment and the one or more other infrastructure equipment acting as the relay nodes in the case that the assistance information satisfies a trigger condition, that the second infrastructure equipment should communicate with the first infrastructure equipment over a second communications path.