SPS Transmission Resource Timing Adjustment to Reduce UE Delay
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Solution Overview
Problem
In Semi-Persistent Scheduling (SPS), the actual starting moment for a User Equipment (UE) to receive data may deviate from the allocated transmission resource, leading to increased data transmission delay due to jitter characteristics in periodic services.
Innovation Solution
A method and device for adjusting transmission resources by allocating a second resource based on a time difference when the deviation exceeds a preset threshold, with the second resource having different time domain but the same frequency domain as the first resource, and notifying the UE to update to the second resource.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If preconfigured transmission resources are allocated periodically based on service characteristics, then resource allocation efficiency is improved, but transmission delay increases due to deviation between actual data arrival time and allocated resource time
Solution Approach 1:
The patent applies dynamics by enabling flexible adjustment of transmission resource timing. The network device dynamically modifies the time domain position of SPS resources based on actual data arrival times, transforming the static periodic allocation into a dynamic adaptive system that responds to real-time service requirements, thereby reducing transmission delay while maintaining allocation efficiency.
Solution Approach 2:
The patent implements parameter changes by adjusting the time domain parameter of transmission resources. When data arrives at a different time than the preconfigured resource allocation, the network device changes the time position parameter of the SPS resource to align with actual data arrival, resolving the contradiction between fixed periodic allocation and variable data timing.
2Loss of time
If transmission resources are adjusted dynamically to match actual data arrival time, then transmission delay is reduced, but system complexity increases due to additional resource management overhead
Solution Approach 1:
The patent applies feedback by establishing a closed-loop resource adjustment mechanism. The network device monitors actual data arrival times, compares them with preconfigured resource allocation times, and provides feedback by adjusting the time domain position of SPS resources accordingly. This feedback-driven approach enables automatic adaptation without requiring complex manual intervention, reducing transmission delay while managing system complexity through automated control.
Solution Approach 2:
The patent implements self-service by enabling the system to automatically adjust transmission resources based on observed data patterns. The network device autonomously modifies SPS resource timing without external intervention, using the service itself (data transmission patterns) to drive resource optimization, thereby reducing delay while keeping management complexity inherent to the automated process.
3Manufacturing precision
If a second transmission resource with different time domain is allocated to correct timing deviation, then data transmission accuracy is improved, but resource utilization efficiency decreases due to additional resource allocation
Solution Approach 1:
The patent applies dimensionality change by utilizing the time domain dimension for resource adjustment. Instead of allocating completely separate resources, the system adjusts the time position of existing SPS resources within the time domain, achieving accurate data transmission while reusing the same frequency and code resources, thereby maintaining resource utilization efficiency while improving transmission accuracy.
Solution Approach 2:
The patent implements dynamics by making transmission resource timing flexible and adjustable. The time domain position of SPS resources is dynamically modified to match actual data arrival times, enabling accurate data transmission without requiring permanent additional resources. This dynamic adjustment allows the system to achieve precision while maintaining efficient resource utilization through adaptive reuse of existing resources.
Data Source
AI summary
The embodiments of the present disclosure provide a method and device for adjusting transmission resource. The method includes: allocating a second transmission resource for a first data based on a time difference, in response to the time difference between a predicted starting moment for a User Equipment (UE) to receive the first data and a starting moment of a preconfigured first transmission resource for receiving the first data being determined greater than or equal to a preset time span, wherein the second transmission resource and the first transmission resource have different time domain resources, and the second transmission resource and the first transmission resource have a same frequency domain resource; and transmitting a notification information to the UE, wherein the notification information is used for notifying the UE to update the first transmission resource to the second transmission resource.