Flexible Resource Configuration via UE-Specific DCI in 5G NR
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Solution Overview
Problem
The challenge in the 5G NR system is to effectively configure flexible resources in a new slot structure to enhance slot resource utilization, which is not efficiently addressed by conventional LTE systems.
Innovation Solution
A method and device configuration that involves receiving UE-specific DCI from a base station to indicate the use configuration status of flexible resources, allowing user equipment (UE) to configure these resources accordingly, enabling improved slot resource utilization by determining the use flag information, time-frequency resource location, or scrambling identifier to determine the use configuration status and schedule communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a new slot structure with flexible resources is introduced in 5G NR system, then slot resource utilization can be improved, but device complexity increases due to need for new configuration mechanisms
Solution Approach 1:
The patent implements dynamic configuration of flexible resources by introducing a new DCI format that carries dynamic indication information for flexible resource allocation. This allows the slot structure to adapt dynamically between UL and DL configurations based on real-time traffic demands, resolving the contradiction by making the system flexible rather than static
Solution Approach 2:
The patent changes the parameter representation by introducing new fields in DCI format (such as frequency domain resource allocation, time domain resource allocation, and UL/DL indication bits) to encode flexible resource configuration information. This parameter expansion enables efficient resource utilization while maintaining structured control signaling
2Adaptability or versatility
If flexible resources are configured dynamically via new DCI format, then resource allocation flexibility improves, but control signaling overhead increases
Solution Approach 1:
The patent segments the resource allocation information into distinct fields within the DCI format: frequency domain resource allocation, time domain resource allocation, UL/DL indication, and redundancy version. This segmentation allows efficient packing of information and enables selective interpretation of different resource types without requiring separate signaling messages
Solution Approach 2:
The new DCI format serves multiple functions simultaneously: it allocates resources, indicates UL/DL direction, specifies redundancy versions, and provides scheduling information. This multi-functionality reduces the need for separate control messages, thereby reducing overall signaling overhead while maintaining allocation flexibility
3Productivity
If UE-specific DCI is used to indicate flexible resource configuration, then communication efficiency improves, but processing complexity at UE increases
Solution Approach 1:
The patent enables UE-specific DCI where each UE receives customized resource allocation information tailored to its specific service requirements and channel conditions. The UE processes only its designated DCI messages with specific formatting and field structures, allowing efficient processing while maintaining individualized resource allocation optimization
Data Source
AI summary
A slot resource configuration method in wireless communication and a device are provided, to resolve a problem of how to configure a flexible resource included in a new slot structure. In this method, user equipment-specific downlink control information (UE-specific DCI) sent by a base station is received, where the UE-specific DCI indicates a use configuration status of a flexible resource in at least one slot; and the flexible resource is configured according to the use configuration status. This method implements configuration of a flexible resource, so that the flexible resource can be used for communication, thereby improving slot resource usage.