SPS Resource Switching via Combined Activation Command
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Solution Overview
Problem
Current wireless communication systems face inefficiencies in managing Semi-Persistent Scheduling (SPS) resources, particularly in switching between SPS and secondary SPS (sSPS) without explicit release commands, leading to resource waste and complexity in managing multiple SPS resources.
Innovation Solution
A method and device for User Equipment (UE) to automatically deactivate activated SPS resources upon receiving a single activation command for another set of SPS resources, allowing simultaneous deactivation and activation with a single SPS confirmation MAC Control Element, eliminating the need for explicit deactivation commands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If explicit deactivation commands are used for SPS resources, then resource management accuracy is improved, but device complexity and signaling overhead increase
Solution Approach 1:
The patent combines the deactivation of one SPS resource with the activation of another SPS resource into a single activation command. When the network side sends an activation command for a new SPS resource, it simultaneously deactivates the previous SPS resource, merging two control operations into one signaling message, thereby reducing signaling overhead while maintaining accurate resource management.
Solution Approach 2:
The patent extracts the deactivation function from a separate deactivation command and integrates it into the activation command. The activation command not only activates new SPS resources but also implicitly deactivates existing ones, removing the need for standalone deactivation signaling and reducing overall system complexity.
2Adaptability or versatility
If multiple SPS resources are managed separately, then resource allocation flexibility is improved, but switching time and operational complexity increase
Solution Approach 1:
The patent merges the switching operation between multiple SPS resources into a single activation command. When switching from one SPS resource to another, the network sends one activation command that simultaneously deactivates the current resource and activates the new resource, reducing switching time and operational steps while maintaining the ability to manage multiple resources flexibly.
3Reliability
If explicit deactivation commands are required, then resource deactivation reliability is improved, but signaling overhead and processing steps increase
Solution Approach 1:
The patent merges the deactivation reliability function into the activation command. By ensuring that the activation command implicitly deactivates previous SPS resources, the system maintains reliable resource deactivation without requiring separate deactivation signaling, thereby reducing energy consumption and signaling overhead while preserving deactivation reliability.
Data Source
AI summary
The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device for performing a SPS activation in multiple SPS resources in wireless communication system, the method comprising: receiving an activation command for a first set of Semi-Persistent Scheduling (SPS) resources from a network, wherein a second set of SPS resources which is already activated on the UE; activating the first set of SPS resources and deactivating the second set of SPS resources based on the activation command for the first set of SPS resources; and transmitting a SPS confirmation Medium Access Control (MAC) Control Element (CE) which indicates that the UE successfully deactivates the second set of SPS resources and activates the first set of SPS resources, in a response to the activation command for the first set of SPS resources.