NR Scheduling Information for Scalable Numerology Support
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Solution Overview
Problem
Current wireless communication systems, particularly the 3GPP New Radio (NR) system, face challenges in supporting scalable numerology to meet the requirements of various scenarios and service needs for 5G communication, such as higher frequency bands, faster movement rates, and lower latency, as defined by the 'IMT for 2020 and beyond' program.
Innovation Solution
The method involves a terminal receiving scheduling information for data transmission or reception from a base station, which provides information on physical resources supporting different subcarrier spacings within a time interval, allowing for the transmission or reception of control and data channels based on multiple scheduling information sets, enabling flexible numerology support by configuring various subcarrier spacings, cyclic prefix lengths, and transmit time intervals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single numerology is used in the NR system, then system simplicity is maintained, but the system cannot meet diverse service requirements such as eMBB, mMTC, and URLLC
Solution Approach 1:
The patent segments the time-frequency resource grid into multiple numerology-specific configurations, allowing different subcarrier spacings and cyclic prefix lengths to be applied to different service types (eMBB, mMTC, URLLC) simultaneously within the same NR system
Solution Approach 2:
The patent enables dynamic switching between different numerologies based on service requirements, allowing the system to adaptively select appropriate subcarrier spacings and cyclic prefix configurations for different traffic types and channel conditions
2Adaptability or versatility
If scalable numerology is supported to meet various scenarios, then service adaptability is improved, but detailed methods for supporting multiple numerologies are not yet defined
Solution Approach 1:
The patent systematically defines multiple numerology parameters including subcarrier spacing values (15kHz, 30kHz, 60kHz, 120kHz), cyclic prefix lengths (normal and extended), and transmit time interval configurations, providing a comprehensive framework for scalable numerology support
3Adaptability or versatility
If multiple subcarrier spacings are configured within a time interval, then flexible numerology support is achieved, but scheduling information complexity increases
Solution Approach 1:
The patent segments scheduling information into numerology-specific components, allowing separate configuration and management of different subcarrier spacings, cyclic prefix lengths, and resource allocations for each numerology type within the system
Solution Approach 2:
The patent designs a universal scheduling framework that can handle multiple numerologies through common signaling structures, enabling the same base station to efficiently manage diverse numerology configurations without requiring completely separate scheduling mechanisms
Data Source
AI summary
Provided is a scheduling information transmission/reception method and apparatus for an NR system in a wireless communication system. A method for receiving, by a terminal, scheduling information for data transmission or reception in a wireless communication system according to one aspect of the present invention may comprise the steps of: receiving, from a base station, information indicating a first physical resource supporting a first subcarrier spacing within a time interval and a second physical resource supporting a second subcarrier spacing within the time interval; receiving at least one of first scheduling information for the first physical resource and second scheduling information for the second physical resource; and performing the data transmission or reception on the basis of the at least one of the first scheduling information and the second scheduling information.