Pre-Configured RAN Allocation for Non-Periodic Low-Latency Traffic
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Solution Overview
Problem
Current techniques for dynamic and grant-free resource allocation in 5G/NR networks are inadequate for non-periodic traffic patterns and low-latency requirements, particularly for emerging services like distributed artificial intelligence with inter-related, non-periodic data traffic.
Innovation Solution
Implementing methods for user equipment (UE) and radio access network (RAN) node to resource allocation, including receiving a resource allocation to transmit or receive data in the RAN, which can include resources during a plurality of occasions, which can but are not required to be periodic, and subsequently receiving one or more indications of whether the UE is allowed to transmit or receive during the occasions, with each particular indication associated with a consecutive subset of the occasions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If bandwidth is allocated dynamically based on periodic traffic patterns, then resource utilization efficiency is improved, but non-periodic traffic cannot be serviced
Solution Approach 1:
The bandwidth allocation is segmented into two distinct parts: a guaranteed minimum bandwidth allocated in advance for non-periodic traffic, and an additional dynamic bandwidth allocated based on periodic traffic patterns. This segmentation allows the system to simultaneously handle both periodic and non-periodic traffic effectively, resolving the contradiction between resource utilization efficiency and adaptability to different traffic types.
Solution Approach 2:
The system performs preliminary allocation of a minimum guaranteed bandwidth before the periodic traffic pattern begins. This preliminary action ensures that non-periodic traffic can be serviced immediately without waiting for dynamic allocation cycles, while still allowing efficient resource utilization through subsequent dynamic allocation based on actual periodic traffic demands.
2Adaptability or versatility
If bandwidth is allocated in advance, then non-periodic traffic can be serviced, but resource utilization efficiency decreases
Solution Approach 1:
The total bandwidth is segmented into a fixed guaranteed portion and a flexible dynamic portion. The guaranteed portion is allocated in advance to ensure non-periodic traffic can be serviced, while the dynamic portion is allocated based on actual periodic traffic patterns, thereby maintaining high resource utilization efficiency. This segmentation resolves the contradiction by allowing both advance allocation and efficient utilization.
Solution Approach 2:
The system changes the allocation parameter from a single fixed bandwidth value to a composite structure consisting of a fixed guaranteed bandwidth and a variable dynamic bandwidth. This parameter change allows the system to maintain the benefit of advance allocation for non-periodic traffic while improving overall resource utilization through dynamic adjustment based on actual traffic patterns.
3Productivity
If all bandwidth is allocated dynamically, then resource utilization is maximized, but quality of service for non-periodic traffic cannot be guaranteed
Solution Approach 1:
The bandwidth allocation is segmented into a guaranteed minimum component that ensures quality of service for non-periodic traffic, and a dynamic component that maximizes resource utilization based on periodic traffic patterns. This segmentation resolves the contradiction by ensuring that the guaranteed portion maintains service quality while the dynamic portion maximizes overall resource utilization.
Solution Approach 2:
The system performs preliminary allocation of a guaranteed minimum bandwidth to ensure quality of service for non-periodic traffic before dynamic allocation begins. This preliminary action establishes a reliable baseline service level while allowing subsequent dynamic allocation to maximize resource utilization based on actual traffic demands.
Data Source
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AI summary
Embodiments include methods for a user equipment (UE) operating in a radio access network(RAN). Such methods include receiving a resource allocation to transmit or receive data in the RAN. The resource allocation includes resources during a plurality of occasions. Such methods include subsequently receiving one or more indications of whether the UE is allowed to transmit or receive during the occasions. Each particular indication is associated with a consecutive subset of the occasions subsequent to the particular indication. Other embodiments include complementary methods for a RAN node, as well as UEs and RAN nodes configured to perform such methods.