DCI Mode Switching for Efficient Multi-UE Resource Allocation
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing downlink control information (DCI) transmission modes, particularly in scenarios involving multiple UEs, leading to inefficiencies in resource allocation and communication performance.
Innovation Solution
The implementation of a method and apparatus that allow for the configuration of at least two sounding reference signal (SRS) resource sets, with the ability to indicate whether DCI communications are associated with a single DCI (sDCI) mode or multiple DCI (mDCI) mode, based on configuration information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If single DCI mode is used for resource allocation, then control signaling overhead is reduced, but flexibility in managing multiple UEs and resource allocation efficiency deteriorates
Solution Approach 1:
The system dynamically switches between sDCI mode and mDCI mode based on configuration information and network conditions. The network node can indicate to the UE whether to use sDCI or mDCI mode, allowing the system to adapt its DCI transmission approach to optimize both signaling overhead and resource allocation efficiency for different scenarios.
2Productivity
If multiple DCI mode is used for resource allocation, then flexibility and resource allocation efficiency are improved, but control signaling overhead increases
Solution Approach 1:
The system dynamically switches between sDCI mode and mDCI mode based on configuration information and network conditions. The network node can indicate to the UE whether to use sDCI or mDCI mode, allowing the system to adapt its DCI transmission approach to optimize both signaling overhead and resource allocation efficiency for different scenarios.
3Adaptability or versatility
If configuration of multiple SRS resource sets is implemented, then adaptability for different transmission scenarios is improved, but device complexity increases
Solution Approach 1:
The SRS resource sets are segmented into multiple distinct configurations, each optimized for specific transmission scenarios. The network node configures the UE with multiple SRS resource sets, where each set can be independently activated based on the current transmission requirements, allowing the system to manage complexity through structured segmentation while maintaining high adaptability.
Solution Approach 2:
The network node performs preliminary configuration of multiple SRS resource sets in advance, preparing different transmission configurations before actual data transmission. This preliminary action allows the UE to have pre-configured options ready, reducing real-time decision complexity while maintaining the ability to adapt to different transmission scenarios.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a network node, configuration information indicating a configuration of at least two sounding reference signal resource sets. The UE may receive one or more downlink control information (DCI) communications associated with one or more uplink communications. The UE may receive, from the network node, an indication of whether the one or more DCI communications are associated with one or both of a single DCI (sDCI) mode or a multiple DCI (mDCI) mode, wherein the indication is based at least in part on the configuration information. Numerous other aspects are described.