5G Control Resource Set Configuration for Bandwidth Adaptation
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Solution Overview
Problem
The 5G communication system faces challenges in efficiently configuring and monitoring control resource sets for signal transmission/reception, particularly in supporting high data rate, short transmission delay, and high connection density services, while managing power consumption and adapting transmission/reception bandwidth.
Innovation Solution
The system introduces methods for the base station and terminal to dynamically configure and monitor downlink control channels by sharing resources, adapting bandwidth, and controlling center frequency locations, allowing for flexible use of time and frequency resources, and enabling efficient power management through reconfiguration of control resource sets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the transmission/reception bandwidth is increased to support high data rate services, then the data rate is improved, but the power consumption increases
Solution Approach 1:
The patent implements dynamic bandwidth adaptation where the terminal can switch between different bandwidth configurations (first bandwidth and second bandwidth) based on service requirements. The control resource set is reconfigurable to match the active bandwidth, allowing the system to optimize power consumption by reducing bandwidth when high data rate is not needed while maintaining the capability to expand bandwidth when high data rate services are required.
2Adaptability or versatility
If the control resource set is reconfigured to adapt transmission/reception bandwidth, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The patent segments the control resource set into multiple configurations corresponding to different bandwidth modes. By pre-defining control resource set configurations for different bandwidth states, the system simplifies the adaptation process - the terminal only needs to switch between predefined configurations rather than dynamically calculating new configurations, thus reducing the complexity of bandwidth adaptation while maintaining high adaptability.
3Adaptability or versatility
If multiple control resource sets are configured to support diverse services, then the service diversity support is improved, but the monitoring complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-configuring multiple control resource set configurations corresponding to different service types and bandwidth requirements before actual service deployment. The terminal receives and stores these pre-defined configurations, enabling it to quickly adapt to diverse services without real-time complex calculations. This preliminary preparation reduces monitoring complexity during operation while supporting service diversity.
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AI summary
A communication method and a system for converging a fifth generation (5G) communication system for supporting higher data rates beyond a fourth generation (4G) system with an internet of things (IoT) technology are provided. The disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as a smart home, a smart building, a smart city, a smart car, a connected car, health care, digital education, smart retail, security and safety services. The method includes transmitting, to a terminal, configuration information for configuring a plurality of bandwidth parts for the terminal, wherein at least one control resource set is configured for each of the plurality of bandwidth parts, respectively, transmitting, to the terminal, information for changing a first bandwidth part activated for the terminal to a second bandwidth part, and transmitting, to the terminal, downlink control information in at least one control resource set corresponding to the second bandwidth part.