User Terminal Data Allocation Position Identification
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Solution Overview
Problem
Future radio communication systems face challenges in dynamically controlling data allocation across slots using downlink control information, particularly in cross-slot scheduling, where the user terminal needs to identify data allocation positions efficiently.
Innovation Solution
A user terminal equipped with a receiving section for downlink control information and a control section that identifies data allocation positions based on downlink control information and common control information, allowing flexible data scheduling across slots.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If data allocation position is controlled dynamically in each slot, then resource usage efficiency is improved, but user terminal's ability to identify data allocation position becomes more difficult
Solution Approach 1:
The patent introduces downlink control information (DCI) as an intermediary carrier that conveys data allocation position information from the base station to the user terminal. The DCI includes resource allocation fields that specify the starting position and length of data allocation in each slot, allowing dynamic control while maintaining identifiability through structured information transmission
Solution Approach 2:
The patent segments the data allocation control into discrete information elements within DCI, specifically dividing resource allocation information into starting position indicators and length indicators. This segmentation allows the user terminal to separately decode and identify each parameter, making dynamic allocation manageable through structured information processing
2Adaptability or versatility
If cross-slot scheduling is implemented, then scheduling flexibility is improved, but complexity of controlling data allocation position increases
Solution Approach 1:
The patent applies preliminary action by providing downlink control information in advance in earlier slots that contains resource allocation information for future slots. The DCI transmitted in slot n can indicate data allocation positions in subsequent slots, allowing the user terminal to prepare and identify allocation positions before actual data transmission occurs
Solution Approach 2:
The patent implements dynamics by allowing data allocation positions to change flexibly across different slots through dynamically updated DCI information. The resource allocation fields in DCI can specify different starting positions and lengths for each slot, enabling adaptive scheduling that responds to changing channel conditions and traffic requirements
Data Source
Figure 1A~1B
Figure 2
Figure 3A~3B
AI summary
The present invention is designed to transmit and/or receive data adequately even when data scheduling methods that are different from those of existing LTE systems are applied. a receiving section that receives downlink control information, and a control section that controls receipt and/or transmission of data scheduled by the downlink control information, where data that is transmitted in the same slot as and/or a different slot from that of the downlink control information is scheduled by the downlink control information, and the control section identifies the position in the time direction where the data is allocated, based on the downlink control information and/or common control information that is common to predetermined user terminals.