IAB Node Guard Interval Priority Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In wireless communication systems, particularly in 5G networks, there is a need to synchronize data transmission and reception timings between integrated access and backhaul (IAB) nodes to reduce latency and efficiently use radio frequency resources, especially in mmWave bands, where coverage limitations and high propagation attenuation occur, necessitating the use of relays and efficient data multiplexing techniques.
Innovation Solution
The implementation of an integrated access and backhaul (IAB) node that determines, based on priority, whether to complete data transmission or reception within a guard interval, and controls the start of subsequent data operations based on the completion time of previous data transmissions or receptions, ensuring overlap and transition times are optimized for both access and backhaul links.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If data transmission and reception operations are performed without considering overlap and transition times, then device complexity is reduced, but transmission timing synchronization deteriorates and latency increases
Solution Approach 1:
The patent applies preliminary action by pre-defining guard intervals and transition time slots before data transmission operations begin. The timing configuration includes predetermined overlap periods and mode transition times that are established in advance, allowing the IAB node to smoothly switch between transmission and reception modes without timing conflicts or excessive latency during operations.
2Reliability
If guard interval time is increased to accommodate mode transitions, then transmission timing synchronization is improved, but productivity decreases due to reduced available transmission time
Solution Approach 1:
The patent applies dynamics by making the guard interval and transition time configurations adaptable rather than fixed. The timing parameters can be dynamically adjusted based on traffic conditions, priority levels, and operational requirements, allowing the system to optimize the balance between synchronization reliability and transmission throughput for different scenarios.
Solution Approach 2:
The patent applies parameter changes by allowing modification of guard interval durations and transition time parameters based on operational needs. Different timing configurations can be selected or adjusted to match traffic patterns, service requirements, and network conditions, optimizing both reliability and productivity for varying operational contexts.
3Reliability
If priority-based completion determination is implemented in guard intervals, then timing synchronization is improved, but device complexity increases
Solution Approach 1:
The patent applies local quality by implementing priority-based completion determination specifically within guard intervals rather than throughout the entire transmission process. This localized approach applies complex priority management only where timing transitions occur, maintaining high reliability during critical mode switches while avoiding unnecessary complexity during steady-state data transmission operations.
Data Source
AI summary
The disclosure relates to a method and device for transmitting or receiving data in a wireless communication system. A method, performed by an integrated access and backhaul (IAB) node, for transmitting or receiving data in a wireless communication system includes, in case of performing a transition between a transmission mode and a reception mode, determining, based on a priority, whether to complete a transmission or reception of first data in a guard interval, and controlling a start of reception or transmission of second data based on the guard interval and a time point at which the transmission or reception of the first data is completed, and wherein the guard interval includes a time at which a transmission or reception interval of the first data and a transmission or reception interval of the second data overlap each other and a time for the transition between the transmission mode and the reception mode.