Dynamic Transmission Pattern Selection for eMBB and URLLC Coexistence
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Solution Overview
Problem
In communication systems, the coexistence of eMBB and URLLC terminal devices in the same transmission pattern leads to inefficiencies due to differing latency requirements, resulting in wasted time and frequency resources.
Innovation Solution
A method and device that determine a target transmission pattern from a set of candidate patterns, varying in time durations for downlink and uplink transmission parts, to optimize resource utilization and meet specific latency requirements of each service type.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If eMBB and URLLC terminal devices are multiplexed in the same transmission pattern, then frequency resources are utilized, but time resources are wasted due to conflicting latency requirements
Solution Approach 1:
The transmission pattern is segmented into multiple transmission opportunities with different time durations. URLLC terminal devices are allocated short transmission opportunities for low-latency communication, while eMBB terminal devices are allocated long transmission opportunities for high-data-rate communication. This segmentation allows both service types to coexist in the same frequency resources without mutual interference.
Solution Approach 2:
Different quality characteristics are assigned to different parts of the transmission pattern. Specifically, different time duration configurations are applied to different terminal devices based on their service requirements. URLLC devices receive transmissions optimized for low latency (shorter duration), while eMBB devices receive transmissions optimized for high throughput (longer duration), thereby achieving local optimization for each service type.
2Ease of operation
If time durations for UL and DL transmission are configured in the whole bandwidth, then simple configuration is achieved, but resource waste occurs when multiplexing different service types
Solution Approach 1:
The transmission pattern configuration is made dynamic by introducing multiple candidate transmission patterns with different time duration characteristics. The network can dynamically select and allocate appropriate transmission patterns to different terminal devices based on their instantaneous service requirements, transitioning from a static whole-bandwidth configuration to a dynamic per-device configuration.
Solution Approach 2:
The time duration parameter of the transmission pattern is varied to accommodate different service requirements. By defining multiple candidate transmission patterns with different time duration parameters and selectively allocating them to URLLC and eMBB terminal devices, the system optimizes resource utilization while maintaining configuration manageability through parameter differentiation.
Data Source
AI summary
Embodiments of the disclosure provide a method and device for performing communication. The method comprises: determining a target transmission pattern from a set of candidate transmission patterns, wherein each of the candidate transmission patterns contains a DL transmission part and/or a UL transmission part, and the candidate transmission patterns differ from one another in terms of time durations of the respective DL transmission parts and/or the UL transmission parts; and performing communication between a network device and a terminal device by using the target transmission pattern.