Radio Resource Allocation in Relay Networks
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Solution Overview
Problem
Existing wireless communication systems with relay functionality face challenges in adequately optimizing the allocation of radio resources across terminal-to-network-node, terminal-to-relay, and relay-to-network-node links, leading to inefficient resource utilization and performance imbalances.
Innovation Solution
A method for allocating radio resources based on status parameters, including throughput, spectrum efficiency, and quality of service requirements, using time-frequency blocks, which involves determining and calculating weighted average values for each relay to optimize resource allocation across links, ensuring balanced performance and maximizing system throughput.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If radio resources are allocated without considering status parameters of relay links, then allocation process is simple, but resource utilization efficiency deteriorates
Solution Approach 1:
The patent implements feedback mechanisms where relays report status parameters (throughput, spectrum efficiency, QoS requirements) to the network node. The network node uses this feedback information to dynamically adjust radio resource allocation, ensuring optimal resource utilization while maintaining manageable complexity through structured feedback loops.
Solution Approach 2:
The allocation process transitions from static to dynamic by continuously adapting resource allocation based on current status parameters of relay links. The network node adjusts time-frequency block sizes and resource distribution in real-time according to changing throughput requirements, spectrum efficiency conditions, and QoS parameters of served terminals.
2Productivity
If radio resources are uniformly allocated to all relays, then allocation process is simple, but performance balancing between different relays deteriorates
Solution Approach 1:
The patent applies local quality by allocating radio resources differently to each relay based on its specific status parameters. Each relay receives customized time-frequency block sizes and resource distributions tailored to its throughput needs, spectrum efficiency, and the QoS requirements of its served terminals, rather than uniform allocation across all relays.
Solution Approach 2:
The network node changes allocation parameters (time-frequency block sizes, resource distribution ratios) based on status parameters received from each relay. By dynamically adjusting these parameters according to actual network conditions, the system achieves both high throughput and performance balancing without requiring overly complex allocation algorithms.
3Measurement precision
If status parameters are collected from all relays and network nodes, then resource allocation accuracy is improved, but information processing overhead increases
Solution Approach 1:
The patent extracts only the essential status parameters needed for resource allocation decisions (throughput, spectrum efficiency, QoS requirements) from relays and network nodes. By focusing on these specific parameters rather than collecting all possible network data, the system achieves accurate resource allocation while minimizing information processing overhead and bandwidth consumption.
4Productivity
If complex resource allocation algorithms are used to optimize relay performance, then system throughput is improved, but terminal complexity increases
Solution Approach 1:
The network node acts as an intermediary that handles complex resource allocation computations centrally. Relays and terminals report their status parameters to the network node, which then determines optimal time-frequency block sizes and resource allocations. This centralizes the computational complexity in the network node rather than requiring complex algorithms at each terminal, thus improving system throughput without increasing terminal complexity.
Data Source
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AI summary
A method of allocating radio resources of a wireless communication system is disclosed. The wireless communication system comprises at least one network node and at least one relay associated with the network node. The method comprises allocating radio resources to at least one of a terminal-to-network-node link, a terminal-to-relay link of each of the at least one relays, and a relay-to-network-node link of each of the at least one relays based on status parameters of each of the terminal-to-network-node link, the terminal-to-relay link of each of the at least one relays, and the relay-to-network- node link of each of the at least one relays. Corresponding arrangement, scheduler and computer program product are also disclosed.