5G Scheduling Feedback Timing to Reduce Terminal Processing Resources
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Solution Overview
Problem
In fifth generation communications systems, the varying processing delays for consecutive physical downlink shared channels (PDSCHs) with different configuration conditions lead to resource conflicts and increased processing requirements for terminal devices, resulting in potential data loss and increased implementation costs.
Innovation Solution
A communication method that determines a second moment for sending feedback information based on a first moment and a processing delay, ensuring that feedback for subsequent downlink data is sent after the previous data's processing is complete, thereby avoiding resource conflicts and reducing the need for increased processing resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the network device independently obtains processing delays based on configuration conditions of each PDSCH and performs scheduling, then the transmission duration of ACK/NACK corresponds to the processing delay, but different configuration conditions lead to different processing delays, causing current data to need processing before previous scheduling is completed, which increases processing resources and implementation costs of the terminal device
Solution Approach 1:
The network device determines a second moment for sending feedback information based on a first moment (estimated earliest moment for feedback) and a first processing delay (estimated delay for processing second downlink data). This preliminary scheduling action ensures that the terminal device does not need to process current data before completing previous scheduling, thereby avoiding increased processing resources while maintaining scheduling efficiency
Solution Approach 2:
The patent uses feedback information timing as a control mechanism. By calculating the second moment based on the first moment and processing delay, the system creates a feedback loop that adjusts scheduling decisions to prevent resource conflicts, allowing the terminal device to process data sequentially rather than simultaneously, thus reducing processing resource requirements
2Ease of manufacture
If processing resources of the terminal device are not increased, then implementation costs are reduced, but the terminal device cannot successfully receive currently scheduled data or previously scheduled data, resulting in receiving failure
Solution Approach 1:
The network device performs preliminary scheduling by determining the second moment based on the first moment and processing delay before actual data transmission. This advance planning ensures that feedback timing does not conflict with ongoing data processing, allowing the terminal device to maintain reliable data reception without increasing processing resources or implementation costs
Solution Approach 2:
The patent introduces the second moment as an intermediary scheduling parameter that mediates between the first moment (feedback timing) and the processing delay. This intermediary calculation ensures that feedback transmission does not interfere with current data processing, maintaining reception reliability while avoiding increased implementation costs
Data Source
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AI summary
This application provides a communication method, a communications apparatus, and a readable storage medium. The communication method includes: determining a second moment based on a first moment and a first processing delay, where the first moment is an estimated earliest moment at which a terminal device can send feedback information for first downlink data, the first processing delay is an estimated delay in processing second downlink data by the terminal device, a time unit used by the second downlink data is after a time unit used by the first downlink data, and the second moment is after the first moment; and sending indication information to the terminal device, where the indication information is used to indicate the terminal device to send feedback information for the second downlink data at the second moment or after the second moment. This application can avoid increasing processing resources because the terminal device needs to simultaneously process two pieces of downlink data, to save resources.