Base Station Dynamic Resource Allocation for URLLC and eMBB Multiplexing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In 5G mobile communication systems, the efficient use of time and frequency resources is compromised when eMBB and URLLC data are multiplexed in the same frequency band, as URLLC data transmission is intermittent, leading to wasted resources due to fixed allocation.
Innovation Solution
A base station device generates an indication signal to dynamically allocate resources, allowing URLLC data to be transmitted in reserved areas only when present, and reallocating those resources to eMBB data when URLLC data is not transmitted, thereby optimizing resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If time and frequency resources are fixedly allocated to URLLC data, then low latency transmission is ensured when URLLC data is present, but resource efficiency deteriorates when URLLC data is not transmitted
Solution Approach 1:
The patent implements dynamic resource allocation where resources are not permanently assigned to URLLC but are allocated on-demand based on actual transmission needs. The base station dynamically assigns resources from a pool when URLLC data arrives and releases them when not needed, transforming the static resource allocation into a dynamic system that adapts to varying traffic conditions.
Solution Approach 2:
The patent creates a universal resource pool that serves multiple purposes: it can be allocated to URLLC data when low-latency transmission is required, and simultaneously serves as fallback resources for eMBB data when URLLC traffic is absent. This multi-functional resource pool resolves the contradiction by allowing the same resources to fulfill different roles based on real-time demands.
2Speed
If resources are allocated to URLLC data, then low latency transmission is achieved, but the efficiency of using time and frequency resources deteriorates due to intermittent transmission
Solution Approach 1:
The patent performs preliminary allocation of a resource pool to URLLC services, but these resources are not immediately consumed. Instead, they are pre-designated as available for URLLC use while maintaining the option to reallocate them to eMBB services if URLLC transmission does not occur within a certain timeframe or condition, thus preparing resources in advance without committing them permanently.
Solution Approach 2:
The patent changes the allocation status parameter of resources from fixed to variable. Resources transition between different states: available for URLLC, allocated to URLLC, released back to pool, and reallocated to eMBB. This parameter change enables the system to adapt resource assignment based on actual transmission conditions, improving both speed and efficiency.
3Adaptability or versatility
If URLLC data is multiplexed with eMBB data in the same frequency band, then resource allocation flexibility is improved, but resource efficiency deteriorates due to fixed allocation of reserved areas
Solution Approach 1:
The patent extracts the guarantee mechanism from permanent reserved resources and relocates it to dynamic priority-based allocation. Instead of setting aside dedicated resources for URLLC that would go unused, the system extracts the essential guarantee function and implements it through priority scheduling and dynamic allocation from the shared resource pool, eliminating wasted reserved resources while maintaining flexibility.
Data Source
AI summary
A base station device includes: a processor circuitry configured to generate an indication signal; and a transmitter configured to transmit the indication signal to a terminal device. The indication signal indicates that there is no transmission of first data to be scheduled in a resource, and the resource may be assigned second data to be transmitted at low latency.