Dynamic Resource Reservation for URLLC and eMBB Multiplexing
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Solution Overview
Problem
Current wireless communication systems face challenges in dynamically reserving resources for ultra-reliable and low-latency communications (URLLC) and enhanced mobile broadband (eMBB) services, leading to data collisions when multiplexed, as existing technologies lack efficient methods for dynamic scheduling and resource allocation.
Innovation Solution
A wireless communication system that includes remote and base units capable of dynamic resource reservation, where the base units generate and transmit indications for dynamic resource reservation based on information from URLLC remote units, allowing remote units to determine and use reserved resources, thereby facilitating efficient multiplexing of URLLC and eMBB transmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If URLLC and eMBB services are multiplexed in the same carrier, then spectrum efficiency is improved, but data collisions occur between the two services
Solution Approach 1:
The base station performs preliminary resource reservation for URLLC services by generating indication information that specifies time-frequency resources reserved for URLLC. This preliminary action allows eMBB users to know in advance which resources are occupied by URLLC, preventing data collisions while enabling spectrum sharing between the two services
Solution Approach 2:
Indication information acts as an intermediary mechanism between URLLC and eMBB services. The indication information transmitted on the physical downlink control channel (PDCCH) or physical downlink shared channel (PDSCH) mediates resource allocation by informing eMBB users about URLLC resource reservations, thereby coordinating the two services without direct interference
2Loss of time
If dynamic resource reservation is implemented for URLLC, then latency requirements are met, but system complexity increases due to additional signaling
Solution Approach 1:
The resource reservation indication is segmented into compact formats that can be efficiently transmitted. The indication information is divided into different types (first type on PDCCH, second type on PDSCH) with varying levels of detail, allowing the system to provide rapid URLLC resource allocation while managing signaling overhead through structured, modular indication formats
Solution Approach 2:
The system changes the parameter of indication information format dynamically based on service requirements. Different indication formats with varying granularities are used - more detailed formats when precise resource allocation is needed for URLLC, and more compact formats when overhead needs to be reduced, thereby balancing latency requirements against signaling complexity
Data Source
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AI summary
Apparatuses, methods, and systems are disclosed for resource reservation. One apparatus (200) includes a receiver (212) that receives (802) an indication of resource reservation for uplink communication. The indication is based on information reported from a first remote unit. The apparatus (200) also includes a processor (202) that determines (804) a resource based on the indication. The apparatus (200) includes a transmitter (210) that transmits (806) data on the resource.