Multi-slot Resource Allocation for Sidelink Throughput
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Solution Overview
Problem
Existing wireless communication systems face inefficiencies in multi-slot resource allocation for sidelink communications, leading to wasted network resources and reduced network throughput due to unused slots in sidelink grants.
Innovation Solution
A method where user equipment (UE) performs a listen-before-talk (LBT) process for a multi-slot resource, transmits a first transport block within a slot of the multi-slot resource based on the LBT process, and assigns remaining slots to a second sidelink grant for transmitting a second transport block, thereby optimizing resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single-slot resource allocation is used for sidelink communications, then the channel access process is simple, but the network throughput is reduced due to unused slots when multiple transport blocks need to be transmitted
Solution Approach 1:
The patent segments the resource allocation process into multiple independent slots within a multi-slot resource. Each slot can be independently allocated to different sidelink grants, allowing flexible division of transmission opportunities. This segmentation enables the system to allocate resources more efficiently across multiple transport blocks while maintaining manageable complexity through standardized slot-based units.
Solution Approach 2:
The patent introduces dynamic resource allocation where the mapping between slots and sidelink grants can change based on transmission needs. The system can dynamically assign different slots to different grants depending on channel conditions, priority levels, and data availability, thereby optimizing throughput without requiring complex static allocation schemes.
2Productivity
If multiple slots are allocated to a single sidelink grant, then the transmission time is extended, but the resource utilization efficiency decreases due to potential unused slots
Solution Approach 1:
The patent segments multi-slot resources into individual allocatable slots, allowing each slot to be independently assigned to different sidelink grants. This prevents the entire multi-slot resource from being tied to a single grant, enabling better utilization by distributing slots across multiple grants based on actual transmission needs and reducing wasted time.
Solution Approach 2:
The patent changes the allocation parameter from grant-level to slot-level, allowing flexible reconfiguration of which slots belong to which grant. This parameter change enables the system to adapt to varying transmission requirements and optimize resource utilization by assigning slots dynamically rather than being locked into fixed multi-slot grant allocations.
3Productivity
If the UE transmits multiple transport blocks in sequence, then the data transmission capacity increases, but the probability of collision and retransmission increases
Solution Approach 1:
The patent applies preliminary slot assignment where slots are pre分配的 to different sidelink grants based on priority and channel conditions before actual transmission. This preliminary organization reduces the likelihood of collisions during sequential transmissions, as the system proactively structures the transmission schedule to avoid conflicts, thereby maintaining reliability while supporting high data capacity.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may perform a listen-before-talk (LBT) process for a multi-slot resource that includes a plurality of consecutive slots. The UE may transmit, based at least in part on the LBT process, a first transport block within a slot of the multi-slot resource in accordance with a first sidelink grant that includes the multi-slot resource. The UE may assign one or more other slots of the multi-slot resource to a second sidelink grant for transmitting a second transport block. Numerous other aspects are described.