Radio Communication Puncturing for Urgent Data Transmission
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In radio communication systems, particularly in URLLC, data with high urgency may be generated unexpectedly, leading to delays and interference when transmitted alongside other data, such as eMBB data, which can compromise low delay and high reliability requirements.
Innovation Solution
A radio communication apparatus that punctures resources allocated for less critical signals during data transmission, allowing urgent data to be transmitted with low delay while minimizing interference by separating urgent data into punctured portions and transmitting it within these allocated resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If data with high urgency are transmitted during transmission of other data, then low delay is achieved, but signal interference occurs and detection accuracy deteriorates
Solution Approach 1:
The resource allocation is segmented into punctured portions (for urgent data) and unpunctured portions (for other data). The transmission unit divides the time-frequency resources such that urgent data can be transmitted in punctured portions without completely disrupting the transmission of other data in unpunctured portions, thereby reducing interference while maintaining low delay
Solution Approach 2:
Different quality requirements are applied to different portions of the transmission resource. The punctured portions are specifically allocated for high-urgency data with relaxed detection requirements, while unpunctured portions maintain high detection accuracy for other data. This local differentiation allows urgent data transmission without compromising overall system reliability
2Loss of time
If puncturing resources of other data is used to transmit data with high urgency, then low delay is achieved, but frequency usage efficiency deteriorates
Solution Approach 1:
Instead of completely allocating resources for urgent data transmission, the system applies partial puncturing only to the extent necessary for urgent data. The unpunctured portions continue to carry other data, ensuring that frequency resources are not wasted and usage efficiency is maintained while still achieving low delay for urgent data
3Reliability
If transmission of urgent data starts after completion of other data transmission, then signal interference is avoided, but transmission delay increases
Solution Approach 1:
The system prepares punctured portions in advance within the resource allocation for urgent data transmission. When urgent data arrives, the transmission unit can immediately transmit them in the pre-allocated punctured portions without waiting for other data transmission to complete, thereby avoiding delay while managing interference through the puncturing mechanism
Data Source
AI summary
A radio communication apparatus functioning as a transmitter in a radio communication system including the transmitter and a receiver includes a first data generation unit that generates first data which are to be transmitted in accordance with a first transmission scheme, a second data generation unit that generates second data which are to be transmitted in accordance with a second transmission scheme, and a transmission unit that, when the second data are generated during transmission of the first data, punctures a portion in which a predetermined signal is transmitted in a resource allocated for the transmission of the first data, transmits the first data in an unpunctured portion, and transmits the second data in the punctured portion.