BWP-Specific SPS Scheduling for Clearer 5G DCI Handling
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Solution Overview
Problem
Existing 5G communication systems face inefficiencies in managing semi-persistent scheduling (SPS) configurations across multiple bandwidth parts (BWPs), leading to unclear operations when semi-static scheduling is not configured to a BWP, which affects power consumption and data transmission efficiency.
Innovation Solution
A method and device for managing SPS configurations by determining whether semi-static scheduling is activated for a specific BWP, and discarding DCI when it is not configured, ensuring efficient operation and power management in wireless communication systems with multiple BWPs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If semi-persistent scheduling is configured across multiple bandwidth parts, then scheduling flexibility and data transmission efficiency are improved, but operational complexity and power consumption increase due to unclear UE operations when SPS is not configured to a specific BWP
Solution Approach 1:
The patent applies local quality by making SPS configuration BWP-specific rather than system-wide. Each BWP can independently configure SPS parameters (sp-ConfigIndex, sp-Period, sp-TimeOffset), allowing the UE to apply different scheduling behaviors to different BWPs based on their specific requirements, thereby reducing overall operational complexity while maintaining flexibility.
Solution Approach 2:
The patent segments the SPS configuration into separate components for each BWP. The configuration includes BWP-specific parameters (sp-ConfigIndex, sp-Period, sp-TimeOffset) that are independently managed per BWP, allowing the UE to process and apply SPS configurations locally to each active BWP without confusion about which BWP a configuration applies to.
2Speed
If the terminal continuously monitors and processes DCI for SPS activation across all BWPs, then scheduling responsiveness is improved, but power consumption increases due to unnecessary processing when SPS is not configured
Solution Approach 1:
The patent implements partial action by having the UE monitor and process DCI for SPS activation only for BWPs where SPS is actually configured. When a BWP is active but SPS is not configured for that BWP, the UE skips processing SPS-related DCI for that BWP, reducing power consumption while maintaining responsiveness for BWPs that do require SPS.
Solution Approach 2:
The UE performs self-service by autonomously determining whether SPS is configured for the currently active BWP and adjusting its DCI monitoring behavior accordingly. The UE checks the SPS configuration status and automatically enables or disables SPS processing without requiring explicit external control, optimizing power consumption based on actual configuration needs.
Data Source
AI summary
The present disclosure relates to a 5th generation (5G) or pre-5G communication system for supporting higher data transmission rates than 4th generation (4G) communication systems such as Long Term Evolution (LTE). According to an embodiment according to the present disclosure, provided is a method performed in a communication system by a terminal. The method performed by the terminal operation may include receiving configuration information about semi-static scheduling; receiving downlink control information (DCI) through a physical downlink control channel (PDCCH); checking whether the DCI activates the semi-static scheduling; checking whether the semi-static scheduling is configured in a bandwidth part (BWP), indicated by a BWP indicator included in the DCI, when the semi-static scheduling is activated; and discarding the DCI when the semi-static scheduling is not configured in the BWP.