Relaying Device Radio Resource Allocation for Base Station Control
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Solution Overview
Problem
In wireless communication systems, base stations face challenges in controlling relayed links due to high control signaling overhead when allocating radio resources, limiting flexibility and making it difficult to manage radio frequency and time allocations for device-to-device communication.
Innovation Solution
A method where a relaying device coordinates radio resource requests from communication devices and relays this information to the base station, allowing for relative allocation of resources between direct and sidelink communications, thereby reducing control signaling overhead and enabling direct base station control over relayed links.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the base station directly controls and allocates radio resources for relayed links, then the control precision and resource allocation accuracy are improved, but the control signaling overhead increases significantly
Solution Approach 1:
The relaying device acts as an intermediary between communication devices and the base station for radio resource allocation. The relaying device receives resource requests from communication devices, determines appropriate radio resources locally, and only relays necessary information to the base station, thereby maintaining allocation accuracy while reducing signaling overhead.
Solution Approach 2:
The relaying device performs local resource determination and allocation decisions based on local channel conditions and traffic requirements. This distributed approach allows resource allocation to be adapted to local conditions without requiring constant base station intervention, reducing overall control signaling while maintaining allocation precision.
2Adaptability or versatility
If the base station directly controls relayed links, then the control flexibility is improved, but the device complexity and management difficulty increase
Solution Approach 1:
The relaying device serves as a mediator that handles complex local management tasks including receiving requests, determining resources, and managing relayed communications. This distributes management complexity from the base station to the relaying device, simplifying base station operations while maintaining control flexibility through the relaying device's autonomous decision-making capabilities.
Solution Approach 2:
The control function is segmented between the base station and relaying device. The base station maintains overall control flexibility and policy decisions, while the relaying device handles detailed local management and resource determination. This segmentation reduces management complexity at the base station while preserving system-wide flexibility.
3Productivity
If radio resources are allocated for device-to-device communication, then the network capacity is improved, but the interference management becomes more difficult
Solution Approach 1:
The relaying device acts as an intermediary that manages interference between device-to-device communications and other network traffic. By locally determining radio resources and coordinating transmissions through the relay, the system can increase network capacity while the relaying device actively manages and mitigates interference effects.
Data Source
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AI summary
The present invention relates to a method for allocating radio resources in a wireless communication system (100). According to the method, at a base station (101), a first radio resource for a communication between the base station (101) and a relaying device (104) is determined. The relaying device (104) is configured to relay information between the base station (101) and at least one communication device (301) of the wireless communication system (100) located within a wireless communication range of the relaying device (104). Furthermore, a second radio resource for a communication between the relaying device (104) and the at least one communication device (301) is determined at the base station (101). A message (503) is transmitted from the base station (101) to the relaying device (104). The message (503) comprises information indicating the first radio resource and information indicating the second radio resource.