Uplink Grant Timing With Bandwidth Part Switching in 5G NR
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently providing various services such as eMBB, mMTC, and URLLC due to varying channel and interference properties in 5G or NR systems, leading to issues like transmission failures and reduced performance.
Innovation Solution
A method and apparatus for a terminal to determine whether bandwidth part switching is required based on control information, optimizing signal transmission and reception by calculating minimum processing time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If bandwidth part switching is performed to optimize signal transmission, then transmission efficiency is improved, but processing time increases
Solution Approach 1:
The terminal determines whether bandwidth part switching is required in advance based on control information before actual signal transmission. By pre-evaluating the need for switching and calculating minimum processing time beforehand, the system optimizes transmission efficiency while managing processing time requirements.
2Reliability
If minimum processing time is calculated accurately, then transmission reliability is improved, but device complexity increases
Solution Approach 1:
The system calculates minimum processing time by determining bandwidth part switching requirements and adjusting time parameters accordingly. By changing the approach to parameter calculation based on control information, the system achieves accurate timing without excessive computational complexity.
Data Source
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AI summary
A method, performed by a terminal, of transmitting or receiving a signal in a wireless communication system includes receiving control information including an uplink grant from a base station, determining whether there is a bandwidth part switching command based on the control information, and determining, based on the uplink grant, whether to transmit a physical uplink shared channel to the base station, based on whether there is the bandwidth part switching command.