Multi-Carrier DCI Format for PDCCH Resource Optimization
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Solution Overview
Problem
In New Radio (NR) systems, the Physical Downlink Control Channel (PDCCH) channel often becomes overloaded, leading to inefficient scheduling of service channel resources and wastage of channel resources due to insufficient utilization of available resources.
Innovation Solution
The method involves configuring available downlink control information formats for terminal devices to enable simultaneous scheduling of multiple carriers, allowing network devices to optimize resource allocation and improve channel resource utilization by using a first downlink control information format that schedules resources across multiple carriers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the PDCCH channel is overloaded with traditional DCI formats, then the scheduling capability for single carrier is maintained, but the utilization rate of PDCCH resources decreases and channel resources are wasted
Solution Approach 1:
The patent applies multi-functionality by designing a DCI format that can simultaneously schedule multiple carriers (carrier aggregation) and support both single-carrier and multi-carrier scenarios. This universal DCI format enables the PDCCH channel to handle diverse scheduling requirements without requiring separate formats for each scenario, thereby improving resource utilization while maintaining scheduling capability.
Solution Approach 2:
The patent merges the scheduling functions for multiple carriers into a single DCI format. Instead of having separate DCI formats for each carrier, the invention combines them into one unified format that can schedule multiple carriers simultaneously, reducing the number of PDCCH messages needed and improving overall channel resource efficiency.
2Adaptability or versatility
If multiple DCI formats are configured for different scenarios, then the adaptability to different network configurations is improved, but the device complexity and monitoring overhead increase
Solution Approach 1:
The patent reduces device complexity by implementing a universal DCI format that handles multiple scenarios (single-carrier and multi-carrier) through a unified structure. This eliminates the need for the terminal device to monitor and differentiate between multiple specialized DCI formats, thereby reducing monitoring overhead and processing complexity while maintaining adaptability to different network configurations.
Solution Approach 2:
Instead of creating multiple specialized DCI formats for different scenarios (the traditional approach), the patent inverts the approach by creating a single general-purpose DCI format that can handle all scenarios. This inversion simplifies the system by reducing the number of formats from many to one, thereby reducing complexity while preserving versatility.
Data Source
AI summary
A control information transmission method, apparatus, device, and storage medium; a terminal device obtains configuration information, then monitors any of the at least one downlink control information format according to the configuration information; the configuration information is used for configuring an available downlink control information format of the terminal device, the available downlink control information format includes a first downlink control information format, the first downlink control information format being used for simultaneously scheduling a plurality of carriers.