Multi-DCI Transmission Capability Reporting and Scheduling
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Solution Overview
Problem
In a multi-downlink control information based transmission mode, terminals face high processing complexity due to the need to process multiple physical downlink control channels (PDCCHs) or physical uplink shared channels (PUSCHs), which affects system performance and user experience.
Innovation Solution
The terminal reports capability reporting information to the network device, indicating its support for multi-downlink control information based transmission, including the type and quantity of supported transmissions. Based on this information, the network device schedules the terminal's transmissions, reducing processing complexity by aligning tasks with the terminal's capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multi-downlink control information based transmission is implemented to improve system capacity and throughput, then system performance is improved, but terminal processing complexity increases
Solution Approach 1:
The patent changes the parameter of transmission configuration by supporting multiple transmission types (first type with single PDCCH, second type with multiple PDCCHs) and allowing dynamic switching between them based on terminal capability and network conditions, thereby resolving the contradiction between throughput improvement and complexity increase
2Reliability
If multiple PDCCHs or PDSCHs are assigned to one terminal to improve multi-site coordination performance, then coordination performance is improved, but terminal processing complexity increases
Solution Approach 1:
The patent segments the multi-TRP transmission into distinct types: first type where one PDCCH schedules multiple PDSCHs from different TRPs, and second type where multiple PDCCHs schedule multiple PDSCHs. This segmentation allows the network to select the appropriate type based on terminal capability, improving coordination performance while controlling complexity
3Productivity
If multi-DCI based transmission is used to resolve inter-cell interference and increase cell-edge spectral efficiency, then spectral efficiency is improved, but terminal processing complexity increases
Solution Approach 1:
The patent introduces dynamic adaptability by allowing the network to flexibly switch between first type transmission (lower complexity) and second type transmission (higher performance) based on terminal capability reporting and real-time network conditions, thereby achieving high spectral efficiency while managing terminal complexity dynamically
Data Source
AI summary
This application provides a multi-downlink control information (DCI)-based transmission method. In the method, a terminal reports information about a capability of the terminal to support multi-DCI transmission, or a network device sends indication information of the types or the quantity of multi-DCI-based transmissions to a terminal. The network device performs resource scheduling on the terminal on this basis, thereby helping improve resource scheduling efficiency and reduce processing complexity of the terminal. In addition, this application also provides a corresponding solution for a scenario in which a carrier aggregation/dual connectivity (CA/DC) DCI-based transmission scenario coexists with multi-DCI (DCI)-based transmission, thereby helping the terminal share a multi-DCI DCI-based transmission capability and a CA/DC (DCI)-based transmission capability to improve a processing capability of the terminal.