5G Resource Mapping for URLLC and eMBB Coexistence
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Solution Overview
Problem
Existing wireless communication systems face challenges in simultaneously providing different types of services, such as eMBB, URLLC, and mMTC, due to potential data loss and increased delay when URLLC data is transmitted in a frequency band already scheduled for eMBB, necessitating a method to efficiently manage and transmit these services without disrupting each other.
Innovation Solution
A method and apparatus for resource mapping that allows coexistence of heterogeneous services by allocating URLLC data in shared or whole frequency bands while ensuring efficient use of frequency-time and spatial resources, with terminals receiving control and data information based on known important resources and mapping rules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If URLLC data is transmitted during an eMBB scheduled time interval, then transmission delay is reduced, but data loss occurs and reliability deteriorates
Solution Approach 1:
The patent segments the time interval into different regions: a first region for eMBB data and a second region for URLLC data. This segmentation allows both services to coexist without interference, where the terminal device receives eMBB data in the first region and URLLC data in the second region, thereby preventing data loss while maintaining low transmission delay for URLLC services.
2Productivity
If multiple services are provided simultaneously, then service diversity and productivity are improved, but resource allocation complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-configuring the terminal device with information about the second time interval and the second region through RRC signaling or MAC CE before the actual data transmission. This advance configuration simplifies the resource allocation process during actual transmission, allowing the terminal to directly receive URLLC data in the pre-designated second region without complex real-time resource allocation decisions.
Data Source
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AI summary
The present disclosure relates to a communication technique for merging, with IoT technology, a 5G communication system for supporting a data transmission rate higher than that of a 4G system; and a system therefor. The present disclosure can be applied to intelligent services (for example, smart home, smart building, smart city, smart car or connected car, healthcare, digital education, retail, security and safety related services, and the like) on the basis of 5G communication technology and IoT-related technology. The present invention provides a method for constituting the corresponding information, in a situation that a specific type service influences (interference in a wireless communication environment) on other types of services or the same type of service, into control information so as to transfer the control information from a base station to a terminal. The terminal receives the information through a control channel and can adapt a data reception method by utilizing the same.