Reference Signal Sets for Service-Specific Beam Selection
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Solution Overview
Problem
The challenge in 5G wireless communication networks is to improve performance through efficient beam selection and resource management, particularly in environments where beamforming is critical but sensitive to time and space variations, leading to reduced signal reliability and interference.
Innovation Solution
The solution involves configuring wireless devices and radio network nodes to associate reference signals with specific services, allowing for optimized beam selection based on service requirements, thereby enhancing resource allocation and network performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If beamforming is used to amplify transmitted signals in selected directions, then signal strength and coverage are improved, but the system becomes more sensitive to time and space variations, reducing signal reliability
Solution Approach 1:
The patent implements dynamic beam management where the network node and wireless device continuously adapt beam selections based on changing channel conditions. The device determines service types (e.g., eMBB, URLLC, mMTC) and selects appropriate reference signal sets accordingly, allowing the system to respond dynamically to time and space variations while maintaining signal strength through targeted beamforming.
Solution Approach 2:
The system changes operational parameters by associating different reference signal sets with different service types. When service requirements change (e.g., from enhanced mobile broadband to ultra-reliable low-latency communication), the device switches between reference signal sets, thereby adjusting beamforming parameters to maintain both signal strength and reliability for the current service demands.
2Adaptability or versatility
If reference signals are transmitted for all services, then all services can be supported, but resource allocation becomes inefficient
Solution Approach 1:
The patent segments reference signals into multiple distinct sets, where each set is specifically configured for particular service types. Instead of using a single comprehensive reference signal set for all services, the system divides reference signals into specialized groups (e.g., one set for eMBB services, another for URLLC services), allowing efficient resource allocation tailored to each service's specific requirements.
Solution Approach 2:
Different reference signal sets are optimized with local quality characteristics suited to their associated service types. Each set contains reference signals with parameters (such as density, frequency spacing, time spacing) specifically tuned for the service requirements, ensuring that resources are not wasted on unnecessary reference signals for services that don't require them.
3Productivity
If beamforming concentrates transmitted power in desired directions, then throughput and coverage are enhanced, but interference from unwanted signals increases
Solution Approach 1:
The patent applies local quality by configuring reference signal sets with service-specific parameters that optimize beamforming characteristics for each service type. For throughput-critical services like eMBB, reference signals are configured to enable aggressive beamforming for maximum gain. For services more sensitive to interference, the reference signal configuration allows for more conservative beamforming that balances throughput with interference management.
Solution Approach 2:
The system dynamically adjusts beamforming parameters based on service type and channel conditions. By switching between different reference signal sets, the device can adapt beamforming aggressiveness in real-time, concentrating power when throughput is prioritized and spreading power more evenly when interference management becomes critical, thus balancing throughput enhancement with interference control.
Data Source
AI summary
Embodiments herein relate to a method performed by a wireless device for handling communication in a wireless communication network. The wireless device obtains an indication of one or more sets of reference signals, wherein each set is associated with one or more services. The wireless device further determines a service to use; and measures a signal strength or a quality of a reference signal of a set out of the one or more sets of reference signals, which set of reference signals is associated with the determined service.