Virtual Bandwidth Part Aggregation for 5G Resource Management
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Solution Overview
Problem
Current 5G wireless communication systems face challenges in efficiently managing radio resources to meet the diverse requirements of different use cases such as eMBB, mMTC, and URLLC, particularly in configuring and scheduling bandwidth parts (BWPs) to optimize data rate, power usage, and resource allocation.
Innovation Solution
The implementation of a virtual bandwidth part (V-BWP) mechanism that dynamically aggregates multiple BWPs, allowing for activation or deactivation based on channel variance, CSI, capacity, and data volume requirements, enabling intra-cell carrier aggregation and optimal resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple BWPs are configured for different use cases (eMBB, mMTC, URLLC), then the system can meet diverse service requirements, but the device complexity and resource management overhead increase
Solution Approach 1:
The patent combines multiple BWPs configured for different use cases (eMBB, mMTC, URLLC) into a single virtual BWP (V-BWP). This merging approach allows the system to maintain the ability to serve diverse service requirements while reducing the complexity of managing multiple separate BWPs, as the V-BWP provides a unified management interface for all constituent BWPs.
Solution Approach 2:
The V-BWP structure enables a single bandwidth part to perform multiple functions by aggregating different BWPs designed for different use cases. This multi-functional design allows the network to handle eMBB, mMTC, and URLLC services through a unified V-BWP configuration, reducing management overhead while maintaining service-specific optimizations.
2Reliability
If all configured BWPs remain active simultaneously, then service continuity is maintained, but power consumption and resource wastage increase
Solution Approach 1:
The patent implements dynamic activation and deactivation of individual BWPs within the V-BWP structure based on real-time service requirements, channel conditions, and traffic patterns. This dynamic approach allows the system to maintain service continuity by keeping only necessary BWPs active, thereby reducing terminal power consumption while ensuring reliable service delivery when needed.
Solution Approach 2:
The system temporarily deactivates (discards) BWPs that are not currently needed for active service, and can reactivate (recover) them when service requirements demand. This selective activation/deactivation mechanism within the V-BWP framework maintains service continuity for active BWPs while allowing inactive BWPs to be powered down, reducing overall power consumption.
3Adaptability or versatility
If BWP switching is performed frequently to adapt to changing service requirements, then service adaptability improves, but signaling overhead and processing latency increase
Solution Approach 1:
By merging multiple BWPs into a single V-BWP, the patent reduces the number of BWP switching operations required. Instead of switching between multiple separate BWPs for different services, the system can manage all services within the unified V-BWP structure, thereby reducing signaling overhead and processing latency associated with frequent BWP switching while maintaining service adaptability.
Solution Approach 2:
The V-BWP is segmented into multiple constituent BWPs that can be independently activated or deactivated based on service requirements. This segmentation allows the system to adapt to changing service needs by selectively enabling specific BWPs within the V-BWP without requiring a complete BWP switch, thereby reducing switching latency and signaling overhead.
4Reliability
If the terminal monitors all configured BWPs for control information, then no control information is missed, but processing complexity and power consumption increase
Solution Approach 1:
The patent implements dynamic monitoring where the terminal monitors control information only on actively activated BWPs within the V-BWP rather than all configured BWPs. This dynamic approach ensures that no control information is missed for active services while significantly reducing processing complexity and power consumption by excluding inactive BWPs from monitoring operations.
Solution Approach 2:
The system extracts and isolates the monitoring function to only those BWPs that are currently active within the V-BWP structure. By taking out the monitoring requirement from inactive BWPs, the terminal reduces processing complexity and power consumption while maintaining reliable control information reception on active BWPs where it is actually needed.
Data Source
AI summary
Method, network device and terminal device for managing a resource in a wireless communication system are disclosed. A method may comprise determining a virtual bandwidth part, V-BWP, for a terminal device; and indicating the V-BWP to the terminal device, wherein the V-BWP comprises two or more bandwidth parts and any active bandwidth part of the V-BWP can be deactivated.