DCI Mode Switching for Uplink-Only or Downlink-Only Scheduling
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Solution Overview
Problem
Existing wireless communication systems face inefficiencies in managing uplink and downlink control information (DCI) due to the need for simultaneous monitoring and decoding, which consumes significant computing resources, particularly for devices that predominantly engage in either uplink or downlink communications.
Innovation Solution
Implementing a DCI mode selection mechanism that allows for either joint monitoring of uplink and downlink DCI or separate monitoring of DCI for uplink-only or downlink-only modes, optimizing resource usage based on device traffic conditions and reducing unnecessary decoding efforts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If joint monitoring of uplink and downlink DCI is implemented, then scheduling flexibility is improved, but computing resource consumption increases
Solution Approach 1:
The patent segments DCI monitoring into separate uplink-only and downlink-only modes, allowing user equipment to monitor only the relevant DCI type based on its communication direction. This segmentation reduces the overall monitoring burden and computing resource consumption while maintaining scheduling flexibility through mode switching capability.
Solution Approach 2:
The patent introduces dynamic mode switching between joint DCI mode and separate DCI modes (uplink-only or downlink-only). The network can dynamically configure the appropriate mode based on traffic conditions, user equipment capabilities, and scheduling requirements, thereby adapting the system to balance flexibility and resource consumption in real-time.
2Use of energy by moving object
If separate monitoring of uplink and downlink DCI is implemented, then computing resource consumption is reduced, but scheduling flexibility deteriorates
Solution Approach 1:
The patent creates a universal DCI monitoring framework that supports multiple modes (joint mode, uplink-only mode, downlink-only mode) within the same system. This multi-functionality allows the system to accommodate different scheduling scenarios and user equipment types, maintaining overall scheduling flexibility while enabling resource-efficient separate monitoring when appropriate.
Solution Approach 2:
The patent changes the monitoring parameter configuration by introducing mode-specific DCI monitoring parameters. In separate DCI modes, the system configures distinct monitoring parameters for uplink and downlink DCI, allowing optimized resource usage while maintaining the ability to switch to joint monitoring parameters when enhanced scheduling flexibility is required.
3Reliability
If DCI monitoring is performed for both uplink and downlink, then communication reliability is improved, but device complexity increases
Solution Approach 1:
The patent extracts the unnecessary DCI monitoring function from the device. In uplink-only or downlink-only modes, the system removes the requirement to monitor the irrelevant DCI type, reducing device complexity while maintaining communication reliability through the presence of the other DCI type for the active communication direction.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may select a downlink control information (DCI) mode to be used by the UE, wherein the selected DCI mode is one of: a joint DCI mode in which a DCI for an uplink and a DCI for a downlink are monitored jointly, or a separate DCI mode in which one or more of the DCI for the uplink or the DCI for the downlink are monitored separately; and monitor at least one of the DCI for the uplink or the DCI for the downlink in accordance with the selected DCI mode. Numerous other aspects are provided.