Uplink Control Information Transmission in Shared Wireless Resources
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Solution Overview
Problem
In wireless data communication, the coexistence of Enhanced Mobile Broadband (eMBB) and Ultra-Reliable Low Latency Communication (URLLC) services in New Radio (NR) networks leads to resource wastage and interference, where URLLC's high reliability and low latency requirements cause degradation or abandonment of eMBB's Uplink Control Information (UCI) and Demodulation Reference Signal (DMRS) performance.
Innovation Solution
The method involves determining a resource sharing manner between eMBB and URLLC User Equipments (UEs), allowing simultaneous transmission on shared resources, using Successive Interference Cancellation (SIC) receivers, and adjusting transmission modes to avoid overlap between UCI and data channels, ensuring UCI is transmitted on control channels and DMRS is minimized in interference zones.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If URLLC service is transmitted on the same resource as eMBB service simultaneously, then transmission latency of URLLC is reduced, but UCI performance of eMBB service is degraded
Solution Approach 1:
The patent segments the time-frequency resources by introducing a protection pattern that divides the shared resources into protected regions (for UCI) and unprotected regions (for data). This segmentation allows URLLC and eMBB to coexist on the same resources while protecting critical control information from interference.
Solution Approach 2:
The protection pattern acts as an intermediary mechanism between URLLC data transmission and eMBB UCI transmission. It mediates the conflict by providing a structured approach to handle potential interference, ensuring that UCI remains protected even when URLLC services share the same resources.
2Productivity
If URLLC service is transmitted on the same resource as eMBB service simultaneously, then resource utilization is improved, but DMRS of URLLC service is interfered by eMBB data
Solution Approach 1:
The protection pattern segments the resources to identify and protect specific regions where DMRS will be transmitted. By marking certain time-frequency resources as protected, the system ensures that DMRS transmissions are not interfered with by overlapping eMBB data, even when URLLC and eMBB share the same overall resources.
3Reliability
If frequency division multiplexing is used to separate URLLC and eMBB services, then interference between services is avoided, but resource waste increases due to reserved resources
Solution Approach 1:
The patent merges the resources used by URLLC and eMBB services by allowing them to transmit simultaneously on the same time-frequency resources. The protection pattern ensures that critical elements (UCI and DMRS) are protected from interference, while data portions can efficiently share the same resources, thus eliminating the need for separate reserved resources.
Data Source
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AI summary
Provided is an information transmission method. The method comprises: determining a transmission resource and a transmission scheme of a data channel; and transmitting information on the transmission resource according to the transmission scheme, the information comprising uplink control information (UCI) and/or data information. Also provided in the present invention are an information transmission device and a storage medium.