5G Control Signaling for Overlapping Service Decoding
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Solution Overview
Problem
Current 5G communication systems face challenges in simultaneously providing different types of services, such as eMBB, URLLC, and mMTC, due to overlapping frequency-time resources, which can lead to data loss and increased delay in transmission.
Innovation Solution
A method and apparatus that allow for the coexistence of different services by determining whether to terminate decoding of one type of data when another type of data is received, using control information to manage resource allocation and transmission timing, enabling efficient use of frequency-time and spatial resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different services are simultaneously provided using overlapping frequency-time resources, then service diversity and resource utilization are improved, but data loss and transmission delay increase
Solution Approach 1:
The patent segments the transmission process by dividing data into multiple code blocks and introducing a transport block indicator (TBI) to identify failed decoding blocks. This segmentation allows selective retransmission of only the failed blocks rather than the entire transport block, reducing data loss while maintaining service diversity in overlapping frequency-time resources
Solution Approach 2:
The patent changes the parameter of resource allocation by allowing dynamic overlap of frequency-time resources for different services (eMBB, URLLC, mMTC). The base station adjusts transmission parameters including TBI indication and selective retransmission based on service type and decoding status, enabling reliable simultaneous service provision without strict resource separation
2Productivity
If different services are simultaneously provided using overlapping frequency-time resources, then resource utilization is improved, but transmission delay increases
Solution Approach 1:
The patent applies preliminary action by having the base station pre-indicate the TBI to the terminal before retransmission. The terminal uses this advance information to prepare for selective decoding and retransmission of only failed code blocks, reducing the overall transmission delay while maintaining high resource utilization through simultaneous service support
Solution Approach 2:
The patent implements skipping by enabling the terminal to skip decoding of successfully received code blocks and directly process only the failed blocks indicated by TBI. This rushing through of already-successful blocks reduces unnecessary processing time and accelerates overall transmission completion
3Productivity
If decoding of first type data is terminated when second type data is received, then transmission efficiency is improved, but data loss may increase
Solution Approach 1:
The patent implements feedback mechanisms where the terminal reports decoding status and the base station adjusts retransmission based on TBI information. This feedback loop ensures that terminating decoding of first type data when second type data is received does not cause data loss, as the system dynamically adapts retransmission strategies based on actual decoding outcomes and service requirements
Data Source
AI summary
The present disclosure relates to a communication method and system for converging a 5th-generation (5G) communication system for supporting higher data rates beyond a 4th-generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. In accordance with an aspect of the present disclosure, a method by a terminal of a mobile communication system includes receiving, from a base station, first control information on first type data; identifying whether second control information on second type data is received from the base station; and terminating decoding of the first type data if the second control information is received.