Adaptive ON/OFF Mask for 5G NR Numerology Transients
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Solution Overview
Problem
The existing ON/OFF time masks in wireless communication systems, particularly in LTE, are designed for single numerology scenarios and are not compatible with the multiple numerologies used in 5G NR, leading to potential interference and degradation of critical signals during uplink transmissions.
Innovation Solution
Adapting the ON/OFF masks to accommodate different numerologies by determining the length and location of the transient period based on the subcarrier spacing and type of signals, ensuring optimal transmission and reception quality across varying numerologies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If existing ON/OFF time masks designed for single numerology (LTE) are used in 5G NR with multiple numerologies, then device complexity is reduced by reusing existing masks, but reception quality of uplink signals degrades due to incompatibility with different numerologies
Solution Approach 1:
The patent implements dynamic ON/OFF mask adaptation by determining transient period parameters (length and location) based on the specific numerology being used. The system dynamically adjusts the ON/OFF mask configuration according to the subcarrier spacing and signal type, rather than using fixed masks. This dynamic adaptation ensures optimal reception quality for each numerology while maintaining manageable device complexity through automated determination procedures.
Solution Approach 2:
The patent changes key parameters of the ON/OFF mask (transient period length and location) based on the numerology parameters (subcarrier spacing). By establishing relationships between these parameters, the system automatically determines appropriate ON/OFF mask configurations for different numerologies, resolving the contradiction between reusing existing masks and maintaining reception quality.
2Ease of operation
If a fixed ON/OFF mask is used for all numerologies, then ease of operation is improved by simplifying mask configuration, but critical signals like SRS and DMRS are degraded due to inappropriate transient period handling
Solution Approach 1:
The patent establishes parameter relationships that automatically determine the transient period length and location based on the numerology's subcarrier spacing and the critical signal type. This automated parameter adaptation maintains ease of operation by eliminating manual configuration while ensuring critical signals like SRS and DMRS receive appropriate transient period handling to preserve their quality.
Solution Approach 2:
The system performs preliminary determination of the appropriate ON/OFF mask parameters before transmitting critical signals. By pre-configuring the transient period parameters based on the known numerology and signal type, the system ensures that critical signals are always transmitted with optimal mask settings, preventing degradation while maintaining operational simplicity.
3Reliability
If ON/OFF masks are adapted for each numerology, then reception quality of uplink signals is improved, but device complexity increases due to need to determine and manage multiple masks
Solution Approach 1:
The patent reduces device complexity by establishing direct parameter relationships between the numerology (subcarrier spacing) and the ON/OFF mask (transient period length and location). Instead of managing completely separate masks for each numerology, the system uses parameter scaling relationships to automatically determine the appropriate mask configuration, thereby improving reception quality while avoiding the complexity of managing multiple independent masks.
4Ease of operation
If a single ON/OFF mask is used across different numerologies, then ease of operation is improved, but critical signals experience interference during transient periods
Solution Approach 1:
The patent adapts the transient period parameters (length and location) according to the specific numerology being used. By scaling these parameters based on the subcarrier spacing and considering the position of critical signals, the system ensures that transient periods do not overlap with critical signals like SRS and DMRS. This parameter adaptation eliminates interference while maintaining the simplicity of using a single adaptive mask configuration approach.
Data Source
AI summary
The present disclosure relates to methods for transmitting or receiving one on more signals in a system where multiple numerologies are used, and for adapting, selecting, or determining the ON/OFF mask for said signals depending on the numerology used for the respective signals, and based on the location of critical signals close to the transient periods. The disclosure also relates to corresponding devices and to a computer program for executing the proposed methods, and to a carrier containing said computer program. Further, embodiments relating to a host computer and activities therein, is also comprised in the current disclosure.