Radio Resource Pre-Scheduling for Signaling Overhead Reduction
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Solution Overview
Problem
Current resource scheduling modes in new radio (NR) networks, such as dynamic scheduling and semi-persistent scheduling, lack flexibility and efficiency, particularly for future resource allocations, leading to increased signaling overhead and limited support for applications requiring persistent radio resource allocations.
Innovation Solution
A method for pre-scheduling radio resources in network nodes, where scheduling information is transmitted to user equipment (UE) to use allocated resources after a predetermined time, eliminating the need for separate activation notifications, using timers or time offsets to manage resource usage and deactivation, and allowing compatibility with existing scheduling schemes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If dynamic scheduling is used for each TTI, then flexibility in resource allocation is improved, but signaling overhead increases and scheduling efficiency deteriorates for persistent transmissions
Solution Approach 1:
The patent applies preliminary action by pre-configuring scheduling parameters (period, offset, resource allocation) through RRC signaling before actual data transmission. This allows the UE to autonomously determine future scheduling opportunities without receiving dynamic grants for each transmission, thereby reducing signaling overhead while maintaining flexibility for both bursty and persistent traffic patterns.
2Quantity of substance
If semi-persistent scheduling is used to reduce signaling overhead, then scheduling efficiency is improved, but flexibility in resource allocation deteriorates
Solution Approach 1:
The patent implements dynamics by enabling the network to activate, deactivate, or reconfigure SPS parameters dynamically through RRC signaling. The SPS configuration includes flexible parameters such as period, offset, and resource allocation that can be adjusted based on traffic conditions, allowing the system to adapt between persistent and bursty traffic patterns while maintaining reduced signaling overhead.
3Measurement precision
If activation notifications are sent for each SPS resource, then resource allocation accuracy is improved, but system overhead increases
Solution Approach 1:
The patent applies preliminary action by pre-configuring complete SPS parameters (period, offset, resource allocation, activation conditions) through RRC signaling before transmission. This eliminates the need for separate activation notifications for each SPS resource, as the UE can autonomously determine when and where to transmit based on the pre-configured parameters, thereby maintaining resource allocation accuracy while reducing system overhead.
Data Source
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AI summary
Methods for resource pre-scheduling are provided. Radio resources scheduled for user equipment are obtained. Scheduling information including the scheduled radio resources is transmitted to the user equipment. The scheduling information is configured to instruct the user equipment to use the scheduled radio resources to transmit or receive data after a predetermined time or after a time indicated by the scheduling information.