Relay Node Adaptive Frequency Band Selection
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Solution Overview
Problem
The existing method for statically configuring relay nodes (RN) in communication systems is costly and inefficient, requiring manual reconfiguration when RN locations change or when RNs are added or removed, leading to high operating costs and low configuration efficiency.
Innovation Solution
A method where the relay node selects an optimal Un interface frequency band based on supported frequency bands and determines a relay type, sending indication information to the Donor Node B (DeNB), which can then reselect the frequency band and relay type, allowing for adaptive selection based on signal quality and interference conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If manual static configuration of relay node type is used, then initial setup is simple, but reconfiguration cost increases when RN location changes or RNs are added/removed
Solution Approach 1:
The patent transforms the static relay node type configuration into a dynamic selection process. The relay node autonomously determines its type (in-band full-duplex, in-band half-duplex, or out-of-band relay) based on real-time measurements of frequency band signal qualities, enabling the system to adapt to changing conditions without manual reconfiguration
Solution Approach 2:
The relay node performs self-configuration by autonomously measuring signal qualities of different frequency bands and selecting the most appropriate relay type based on these measurements, eliminating the need for manual operator intervention during deployment and reconfiguration
2Device complexity
If manual static configuration is used, then device complexity is low, but operating cost increases due to frequent reconfiguration
Solution Approach 1:
The relay node autonomously determines its own configuration type by measuring signal qualities and applying selection criteria, eliminating the need for costly manual reconfiguration operations while maintaining appropriate system complexity for autonomous decision-making
3Productivity
If relay node type is fixed at deployment, then initial setup is fast, but adaptability decreases when network conditions change
Solution Approach 1:
The system enables dynamic relay type selection where the relay node can transition between different relay types (in-band full-duplex, in-band half-duplex, out-of-band) based on measured signal qualities, providing adaptability while maintaining fast initial deployment through autonomous self-configuration
Solution Approach 2:
The relay node continuously measures signal qualities of different frequency bands and uses this feedback information to select the most appropriate relay type, enabling the system to adapt to changing network conditions while maintaining efficient operation
Data Source
AI summary
Embodiments of the present invention provide a method, a device, and a system for selecting a relay type. A relay node selects a Un interface frequency band with an optimal signal according to frequency bands supported on a Un interface. The relay node determines a relay type according to the selected Un interface frequency band and a configured Uu interface frequency band and sends indication information to a DeNB. The indication information includes the selected Un interface frequency band and the relay type.