5G Radio Resource Allocation for Flexible Time-Frequency Scheduling
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Solution Overview
Problem
Existing 4G wireless communication systems face challenges in resource allocation flexibility, limiting their ability to support diverse services such as high-speed data, ultra-reliability, and low latency applications, and there is a need for improved spectrum utilization efficiency in 5G networks.
Innovation Solution
A method and apparatus for flexible resource allocation in 5G networks, allowing for dynamic and semi-static configurations of radio resources in both time and frequency domains, enabling efficient multiplexing of different services and user equipments (UEs) through techniques like TTI bitmap, symbol indication, and tree-based signaling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional 4G resource allocation schemes are used, then system stability is maintained, but resource allocation flexibility is limited
Solution Approach 1:
The patent implements dynamic resource allocation by allowing resource block groups (RBGs) to be flexibly configured in both time and frequency domains. The RBG size and positioning can be dynamically adjusted based on service requirements, enabling the system to adapt to varying traffic patterns and service types while maintaining manageable complexity through structured configuration parameters.
Solution Approach 2:
The patent segments the frequency domain into resource block groups (RBGs) rather than using individual resource blocks. This segmentation approach provides coarser granularity that simplifies resource allocation signaling while still enabling flexible service multiplexing. The RBG structure allows multiple services to be allocated in configurable units without requiring detailed individual block management.
2Productivity
If fixed resource allocation is used, then system complexity is reduced, but spectrum utilization efficiency decreases
Solution Approach 1:
The patent enables dynamic resource allocation where the base station can flexibly assign resource block groups to different services and user equipments based on real-time channel conditions and traffic demands. This dynamic approach improves spectrum utilization by allocating resources precisely where needed rather than using fixed allocations, while the complexity is managed through standardized configuration parameters and signaling mechanisms.
3Adaptability or versatility
If traditional resource allocation is used, then backward compatibility is maintained, but forward compatibility for new services is limited
Solution Approach 1:
The patent creates a universal resource allocation framework that can accommodate multiple service types including enhanced mobile broadband, ultra-reliable low-latency communication, and massive machine type communication. The resource block group structure and flexible configuration parameters provide a multi-functional platform that supports diverse service requirements without requiring separate allocation mechanisms for each service type, thereby ensuring forward compatibility while simplifying service deployment.
Data Source
AI summary
A communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT) are provided. The communication method and system may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. A method of a user equipment (UE) for receiving data is provided. The method includes receiving, from a base station, information on radio resources allocated to the UE, and receiving, from the base station, data based on the information on the radio resources. The radio resources are associated with a plurality of symbols in a time domain and a plurality of resource block groups in a frequency domain. The information on the radio resources includes at least one of first information on a starting symbol, or second information on a size of each of the resource block groups.