Communications Controller for Relay Node Resource Management
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Solution Overview
Problem
Current wireless communication systems with relay nodes face challenges in providing flexible performance levels, meeting varying security and quality of service (QoS) requirements, and require costly modifications to existing infrastructure.
Innovation Solution
A system and method that includes a communications controller with a control unit for managing resources and scheduling, a bearer control unit for managing radio bearers, and a mapping unit for user bearers, allowing for flexible configuration of connections based on QoS and security levels, and enabling efficient management of relay nodes within a communications network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If relay nodes are deployed to improve coverage and performance, then system reliability and coverage are improved, but device complexity and deployment costs increase
Solution Approach 1:
The patent introduces a communications controller as an intermediary entity that manages relay nodes and coordinates communications between the core network and user equipment. This controller abstracts the complexity of relay node management, allowing relay nodes to be deployed for improved coverage and reliability without proportionally increasing overall system complexity. The controller handles resource allocation, bearer management, and coordination functions that would otherwise need to be implemented in each relay node.
2Reliability
If strict QoS and security requirements are implemented, then service quality and security are improved, but device complexity and implementation costs increase
Solution Approach 1:
The patent segments QoS and security management into distinct functional units within the communications controller. The bearer control unit handles radio bearer management and QoS parameters, while the mapping unit manages the mapping between user bearers and radio bearers. This segmentation allows each unit to focus on specific aspects of service quality without requiring every component to implement the full complexity of QoS and security requirements.
Solution Approach 2:
The patent applies local quality by allowing different QoS treatments for different bearers and services. The mapping unit can apply specific QoS parameters and security levels to individual user bearers based on their requirements, rather than applying uniform strict QoS across all communications. This enables high service quality for critical services while reducing complexity for less demanding services.
3Adaptability or versatility
If existing infrastructure is modified to support relay nodes, then system adaptability is improved, but manufacturing costs and deployment expenses increase
Solution Approach 1:
The communications controller is designed as a universal entity that can manage both traditional base stations and relay nodes through common interfaces and protocols. The controller provides multi-functional capabilities including resource management, bearer control, and coordination for different types of network nodes. This universality allows existing infrastructure to be adapted to support relay nodes without requiring node-specific management systems, reducing deployment costs while improving system adaptability.
Data Source
AI summary
A system and method for communications in communications systems with relay nodes are provided. A communications controller includes a communications control unit, a bearer control unit coupled to the communications control unit, and a mapping unit coupled to the bearer control unit. The communications control unit manages resources and schedules transmission opportunities, the bearer control unit manages radio bearers for relay nodes coupled to the communications controller, and the mapping unit provides a mapping of user bearers to radio bearers.