Dynamic Resource Sharing in 5G eMBB URLLC Systems
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Solution Overview
Problem
In dynamic resource sharing between eMBB and URLLC in next-generation radio access technologies, the puncturing of resources for URLLC data transmission can lead to degradation of eMBB data characteristics due to the puncturing of demodulation reference signals, affecting reception efficiency.
Innovation Solution
A mechanism where terminal devices and base station devices acquire and process control information to map eMBB data channels and reference signals in a way that assumes the reference signals are included in the resources used by URLLC, ensuring that eMBB data can be demodulated without loss, even when URLLC data is transmitted.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If dynamic resource sharing is implemented between eMBB and URLLC, then resource utilization efficiency is improved, but eMBB data characteristics are degraded due to puncturing of demodulation reference signals
Solution Approach 1:
The patent segments the resource elements within a resource block by identifying and separating demodulation reference signal resources from data resources. The base station transmits control information indicating which resource elements contain URLLC data and which contain eMBB data, allowing the terminal to process these segments differently and maintain eMBB data characteristics while enabling URLLC puncturing.
Solution Approach 2:
The patent introduces control information as an intermediary mechanism that conveys mapping relationships between resource blocks and actual transmitted signals. This control information acts as a mediator between the URLLC data transmission and eMBB data reception, enabling the terminal to correctly identify and process eMBB data even when URLLC data punctures the resource block.
2Speed
If URLLC data is transmitted in punctured resources, then low latency transmission is achieved, but reception efficiency of eMBB data is affected
Solution Approach 1:
The base station transmits control information before the terminal needs to process the punctured resource block. This control information preliminarily establishes the mapping relationships between resource blocks and actual transmitted signals, allowing the terminal to prepare the necessary processing parameters in advance and efficiently receive eMBB data even after URLLC puncturing occurs.
Data Source
AI summary
Provided is a mechanism capable of improving the transmission efficiency of the entire system in a case where dynamic resource sharing is performed.A terminal device includes: an acquisition unit that acquires first control information and second control information provided in notification from a base station device; and a reception processing unit that performs reception processing of a first data channel scheduled to a first resource, and a reference signal for demodulating the first data channel, on the basis of the first control information, in which the reception processing unit performs the reception processing of the first data channel mapped to a resource other than a second resource that is a part of the first resource in the first resource on the basis of the second control information on the assumption that the reference signal is mapped to the first resource including the second resource.