Dynamic Resource Allocation for eMBB and URLLC Multiplexing
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Solution Overview
Problem
The challenge in New Radio (NR) mobile communication networks is to efficiently support both Enhanced Mobile Broadband (eMBB) and Ultra Reliability Low Latency Communication (URLLC) services, where eMBB requires less stringent delay but URLLC demands high reliability and low latency, leading to inefficient resource reservation and decoding performance issues when multiplexed.
Innovation Solution
A data transmission method that allocates resources such that eMBB and URLLC services share frequency-domain resources, with eMBB data divided into two parts transmitted over different redundancy versions, allowing URLLC to use resources not occupied by eMBB, ensuring reliable transmission and improved decoding performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If frequency-domain resources are reserved for URLLC service, then URLLC transmission reliability is improved, but system resource utilization deteriorates when URLLC is not frequently transmitted
Solution Approach 1:
The patent implements dynamic resource allocation where frequency-domain resources initially reserved for URLLC are released and reallocated to eMBB services when URLLC transmissions are not scheduled. This dynamic adjustment allows the system to adapt resource allocation based on actual service demands, improving overall resource utilization while maintaining URLLC reliability through on-demand resource allocation.
Solution Approach 2:
The patent enables frequency-domain resources to serve multiple purposes: they are reserved for URLLC services when needed, but can be utilized by eMBB services when URLLC is not actively transmitting. This multi-functionality resolves the contradiction by making the same resources serve different services based on real-time requirements, thereby improving system resource utilization without compromising URLLC transmission reliability.
2Productivity
If eMBB data is transmitted over frequency-domain resources reserved for URLLC, then system resource utilization is improved, but eMBB decoding performance deteriorates
Solution Approach 1:
The patent segments eMBB data into multiple parts and transmits them over different redundancy versions. When eMBB data is transmitted over frequency-domain resources that may be used by URLLC, the segmentation allows the receiver to combine information from multiple transmissions, thereby maintaining decoding performance while enabling resource sharing and improving system resource utilization.
3Productivity
If URLLC and eMBB services share frequency-domain resources, then system resource utilization is improved, but resource allocation complexity increases
Solution Approach 1:
The patent employs periodic scheduling where URLLC services are allocated frequency-domain resources at specific intervals when needed, while eMBB services utilize these resources during periods when URLLC is not scheduled. This periodic action pattern simplifies resource allocation management by establishing predictable transmission patterns, thereby improving system resource utilization without excessively increasing allocation complexity.
Data Source
AI summary
Disclosed is a data transmission method and apparatus, and an electronic device. The method includes that a transmitting end transmits data over an allocated resource. The allocated resource includes one of: a first type of resource and a second type of resource; or the second type of resource. A starting time of the second type of resource is later than a starting time of the first type of resource, or an ending time of the second type of resource is earlier than an ending time of the first type of resource. The data transmitted over the first type of resource and the date transmitted over the second type of resource are aligned on a time-domain symbol.