UE Downlink Control Information Serving Cell Identification
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Solution Overview
Problem
In a new radio (NR) system, when downlink control information (DCI) includes scheduling information for multiple serving cells, it is challenging for user equipment (UE) to accurately identify the specific serving cell scheduled by the DCI.
Innovation Solution
The method involves determining target indication information corresponding to the DCI sent by the network device and using configuration information for respective serving cells to identify the target serving cell scheduled by the DCI.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If one piece of DCI includes scheduling information of multiple serving cells simultaneously, then scheduling efficiency is improved, but the ability to accurately identify the specific serving cell scheduled by the DCI deteriorates
Solution Approach 1:
The patent segments the scheduling information in DCI by introducing a serving cell indicator field that divides and identifies specific serving cells within the multi-cell scheduling framework. This allows the UE to distinguish which specific serving cell(s) are being scheduled by a single DCI message, resolving the identification accuracy issue while maintaining scheduling efficiency.
Solution Approach 2:
The patent introduces a serving cell indicator as an intermediary element between the DCI and the multiple serving cells. This indicator acts as a mediator that carries the necessary information to identify which specific serving cell(s) the DCI is scheduling, enabling accurate identification without compromising the efficiency of multi-cell scheduling.
2Adaptability or versatility
If the NR system supports carrier aggregation with multiple secondary cells, then resource allocation flexibility is improved, but the complexity of identifying and managing scheduled serving cells increases
Solution Approach 1:
The patent applies segmentation by dividing the identification task into manageable parts through the serving cell indicator field. Instead of requiring the UE to complexly analyze entire DCI messages to identify serving cells, the indicator provides clear, segmented identification information that simplifies the management of multiple serving cells in carrier aggregation scenarios.
Solution Approach 2:
The patent changes the parameter structure of DCI by adding the serving cell indicator field. This parameter change enables the system to handle multiple serving cells in carrier aggregation by providing explicit identification information, thereby improving resource allocation flexibility while keeping the identification process straightforward through standardized parameter interpretation.
Data Source
AI summary
Embodiments of the present disclosure provide a method for identifying downlink control information, a user equipment (UE) and a non-transitory computer-readable storage medium. The UE determines target indication information corresponding to DCI sent by a network device, and determines, according to configuration information corresponding to respective serving cells to be scheduled and the target indication information, a target serving cell scheduled by the DCI.