Relay Node Priority Control for 5G QoS
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Solution Overview
Problem
Current cellular communication systems face challenges in achieving topology-wide fairness and efficient data packet transfer in 5G networks, particularly in managing Quality of Service (QoS) across relay nodes and base stations, due to limitations in scheduler optimization and routing configurations.
Innovation Solution
The proposed communication control method configures relay nodes to perform priority control and pre-emptive buffer status reporting, allowing donor base stations to manage data packet transfer and routing configurations based on throughput, discarded packets, and failure notifications, thereby optimizing fairness and QoS across the network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If relay nodes perform priority control in data packet transfer, then QoS management is improved, but device complexity increases
Solution Approach 1:
The patent segments the data packet transfer process by introducing priority levels and separate scheduling mechanisms for different traffic types. The donor base station divides the network traffic into multiple priority queues, allowing differentiated handling of packets based on QoS requirements, thereby improving overall QoS management without overwhelming the relay nodes with undifferentiated complex processing
Solution Approach 2:
The patent implements dynamic priority control where the donor base station can adjust scheduling priorities and resource allocation in real-time based on network conditions and QoS requirements. This dynamic adjustment capability allows the system to adapt to changing traffic patterns and maintain optimal QoS performance while managing complexity through centralized control
2Productivity
If pre-emptive buffer status reporting is implemented, then data packet transfer efficiency is improved, but loss of information increases
Solution Approach 1:
The patent implements pre-emptive buffer status reporting where relay nodes proactively report their buffer status to the donor base station before the buffer becomes full or before traffic conditions change significantly. This preliminary action allows the donor base station to anticipate congestion and adjust scheduling in advance, improving transfer efficiency while maintaining accurate buffer status information through timely updates
Solution Approach 2:
The patent establishes a feedback mechanism where the donor base station receives buffer status reports from relay nodes and responds with adjusted scheduling decisions. This closed-loop feedback ensures that buffer status information is continuously updated and reflected in scheduling decisions, preventing information loss while enabling efficient proactive resource allocation
3Reliability
If routing configurations are updated based on throughput and failure notifications, then topology-wide fairness is improved, but device complexity increases
Solution Approach 1:
The patent implements a feedback-based routing optimization mechanism where relay nodes report throughput metrics and failure notifications to the donor base station. The donor base station uses this feedback information to dynamically adjust routing configurations and load distribution across the network, achieving topology-wide fairness through centralized optimization rather than distributed complexity
Solution Approach 2:
The patent optimizes routing configurations by changing key parameters such as path selection, load balancing weights, and failure threshold values based on observed network conditions. This parameter-based approach allows flexible adaptation to changing network topology and performance characteristics while maintaining manageable complexity through standardized parameter adjustment procedures
Data Source
AI summary
In a first aspect, a communication control method is used in a cellular communication system. The communication control method includes performing, by a donor base station including a relay node as a subordinate, configuration whether the relay node causes a scheduler of the relay node to perform priority control in data packet transfer. The communication control method includes causing, by the relay node, the scheduler to operate in accordance with the configuration.