PUSCH Scheduling via Puncturing Indication for Collision Avoidance
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Solution Overview
Problem
In future radio communication systems, the coexistence of services with different latency and reliability requirements can lead to data interrupts, causing communication quality deterioration due to collisions during data transmission.
Innovation Solution
A user terminal with a receiving section for UL transmission commands and a control section that applies puncturing to UL data upon receiving puncturing indication, allowing flexible scheduling and reducing resource allocation conflicts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If data transmission is allowed to be interrupted for services with different latency requirements, then service adaptability is improved, but communication quality deteriorates due to data collisions
Solution Approach 1:
The patent extracts the punctured portion from the original UL data transmission and handles it separately through retransmission. When a data collision is detected, the affected portion is identified and removed from the normal transmission flow, then retransmitted independently to avoid further collisions and ensure reliable delivery.
Solution Approach 2:
The patent performs preliminary detection of data collisions before final transmission completion. By detecting collisions early in the transmission process, the system can identify affected data portions and initiate retransmission procedures before the entire transmission sequence is completed, preventing further quality deterioration.
2Adaptability or versatility
If multiple services with different latency requirements coexist, then system versatility is improved, but data collisions occur during transmission
Solution Approach 1:
The patent extracts the collided data portion from the mixed service transmission and handles it through separate retransmission. This isolation prevents the collision from affecting other data portions and allows the system to maintain versatility while managing collisions systematically.
Solution Approach 2:
The patent introduces an intermediary detection mechanism that identifies data collisions between different services. This intermediary function detects collisions and triggers appropriate retransmission procedures, acting as a mediator between the diverse service requirements and the transmission medium.
3Productivity
If UL data transmission is scheduled in advance, then transmission efficiency is improved, but flexibility to handle interrupts is reduced
Solution Approach 1:
The patent implements dynamic scheduling that can adapt to interrupt conditions. The system maintains advance scheduling for efficiency but introduces dynamic detection and retransmission capabilities that allow it to respond to interrupts and collisions, balancing efficiency with flexibility.
Solution Approach 2:
The patent incorporates feedback mechanisms that monitor transmission status and detect collisions. This feedback allows the system to adjust its scheduling in real-time, maintaining efficiency through advance planning while gaining flexibility through collision detection and adaptive retransmission decisions.
Data Source
AI summary
A terminal is disclosed that includes a receiver that receives a first downlink control information for scheduling a physical uplink shared channel (PUSCH) transmission, and a second downlink control information for notifying a time region and a frequency region in which the PUSCH is not to be transmitted. The terminal further includes a processor that supports reception of the second downlink control information in a slot that is shorter than a slot for transmitting the PUSCH. In other aspects, a radio communication method and a base station are also disclosed.