5G PDSCH Transmission Scheduling Flexibility
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Solution Overview
Problem
There is no existing scheme for data transmission on the Physical Downlink Shared Channel (PDSCH) that effectively handles the size relationship between the scheduling interval and the processing interval in 5G mobile communication technology, leading to inefficiencies in data transmission.
Innovation Solution
A method where a network device determines the processing interval of a terminal based on reported parameters and compares it with the scheduling interval, using pre-configured quasi co-location information to transmit data through PDSCH when the scheduling interval is less than the processing interval, thereby optimizing resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If flexible scheduling is adopted with variable scheduling intervals, then scheduling flexibility and resource utilization are improved, but when scheduling interval is less than processing interval, data transmission cannot be completed reliably
Solution Approach 1:
The patent applies dynamics by making the PDSCH starting position flexible rather than fixed. The network device can dynamically adjust the starting position of PDSCH within a slot based on the processing capability of the terminal. When the scheduling interval is sufficient, PDSCH can start earlier to improve resource utilization; when the scheduling interval is insufficient, PDSCH starting position is adjusted to ensure the processing interval requirement is met, thus maintaining transmission reliability while preserving scheduling flexibility.
Solution Approach 2:
The patent changes the parameter of PDSCH starting position based on the relationship between scheduling interval and processing interval. By adjusting this parameter dynamically, the system ensures that data transmission reliability is maintained even under flexible scheduling conditions where the scheduling interval may be less than the processing interval.
2Productivity
If PDSCH starts immediately after scheduling interval, then resource utilization is improved, but terminal processing time may be insufficient when scheduling interval < processing interval
Solution Approach 1:
The patent makes the PDSCH starting position dynamic rather than fixed immediately after the scheduling interval. The network device adjusts the starting position based on whether the scheduling interval meets the processing interval requirement. This dynamic adjustment allows the system to maximize resource utilization when conditions permit while ensuring sufficient processing time when needed.
Solution Approach 2:
The patent applies preliminary action by having the network device determine the appropriate PDSCH starting position in advance based on the processing capability information reported by the terminal. This allows the system to proactively ensure sufficient processing time is allocated before data transmission begins, preventing processing time deficiencies.
3Ease of operation
If fixed PDSCH starting position is used, then terminal processing is simplified, but scheduling flexibility and resource utilization are reduced
Solution Approach 1:
The patent implements a dynamic PDSCH starting position mechanism that adapts to different scheduling scenarios. While this increases complexity compared to a fixed starting position, it enables the network to flexibly adjust resource allocation based on terminal processing capabilities and scheduling requirements, thereby improving overall system productivity and resource utilization.
Solution Approach 2:
The patent uses feedback from the terminal's processing capability reporting to determine the appropriate PDSCH starting position. The terminal reports its processing capability to the network device, which then uses this feedback information to adjust the scheduling and PDSCH starting position accordingly. This feedback mechanism enables the system to balance between terminal processing simplicity and scheduling flexibility.
Data Source
AI summary
The present disclosure provides a data transmission method, a network device and a terminal. In embodiments of the present disclosure, the network device determines a processing interval of the terminal according to parameter(s) reported by the terminal, and then compares a scheduling interval for resource allocation for the terminal with the determined processing interval of the terminal. When the scheduling interval is less than the processing interval, the network device transmits data through a physical downlink shared channel after the scheduling interval by using pre-configured quasi-co-location information corresponding to the terminal.