Wireless Resource Alignment for In-Band Interference Mitigation
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Solution Overview
Problem
In wireless communication systems, simultaneous NR V2X and NR SL transmission on the same authorized frequency band leads to in-band interference, reducing spectrum utilization efficiency due to synchronization requirements and time alignment issues.
Innovation Solution
A method for determining a resource alignment mode in the time domain for both NR and SL wireless resources based on the terminal's synchronous transmission capability, aligning UL and DL resources to mitigate interference and optimize resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If simultaneous NR V2X and NR SL transmission is performed on the same authorized frequency band, then spectrum utilization efficiency is improved, but in-band interference occurs reducing transmission quality
Solution Approach 1:
The patent segments the time domain resources by introducing different time alignment modes (first mode with first time alignment, second mode with second time alignment) for NR V2X and NR SL transmissions. This segmentation allows the system to divide transmission resources in the time domain, enabling simultaneous operation while managing interference through distinct timing relationships with the synchronization signal.
Solution Approach 2:
The patent implements dynamic resource allocation by allowing the network to configure different time alignment modes based on terminal capability indications. The system dynamically adjusts the time domain resource allocation and synchronization approach according to whether the terminal supports synchronous or non-synchronous transmission, optimizing spectrum utilization while managing interference adaptively.
2Object-affected harmful factors
If resource alignment mode is determined based on synchronous transmission capability, then in-band interference is reduced, but device complexity increases due to capability indication and configuration management
Solution Approach 1:
The terminal autonomously determines and indicates its synchronous transmission capability to the network. This self-service approach allows the terminal to self-configure its transmission mode without requiring complex network-side capability assessment, reducing overall system complexity while enabling interference management through capability-based resource alignment.
Solution Approach 2:
The patent changes the synchronization parameter (time alignment mode) based on the terminal's synchronous transmission capability. By adjusting the time domain alignment parameter according to capability indicators, the system manages interference effectively while keeping the complexity manageable through parameter-based configuration rather than structural changes.
3Reliability
If time domain resource alignment is implemented for NR and SL resources, then transmission quality is improved, but flexibility in resource allocation is reduced
Solution Approach 1:
The patent implements dynamic resource allocation by allowing the network to configure different time alignment modes based on terminal capability indications. The system dynamically adjusts the time domain resource allocation and synchronization approach according to whether the terminal supports synchronous or non-synchronous transmission, optimizing spectrum utilization while managing interference adaptively.
Solution Approach 2:
The patent creates a universal resource allocation framework that handles both synchronous and non-synchronous transmission scenarios through a unified time alignment mode configuration mechanism. This multi-functional approach allows the same resource allocation system to serve different transmission requirements, maintaining flexibility while ensuring transmission quality through appropriate time domain alignment.
Data Source
AI summary
A method for information processing that can include determining, by a base station, according to a synchronous transmission capability of a terminal for a first wireless transmission mode and a second wireless transmission mode, a resource alignment mode in a time domain for a first wireless resource and a second wireless resource configured for the terminal.