Dynamic Bandwidth Part Switching for Wireless Resource Efficiency
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Solution Overview
Problem
Current wireless communication networks face challenges in efficiently managing bandwidth and resource allocation across diverse user equipment (UE) capabilities and network conditions, leading to suboptimal performance and increased latency.
Innovation Solution
The implementation of dynamic bandwidth part (BWP) configuration and adaptive resource allocation techniques, allowing UEs to switch between configured BWPs based on traffic conditions and network availability, thereby optimizing resource utilization and reducing latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If dynamic bandwidth part configuration and adaptive resource allocation are implemented, then network efficiency and throughput are improved, but device complexity and processing overhead increase
Solution Approach 1:
The patent implements dynamic bandwidth part configuration where UEs can switch between different BWPs based on traffic conditions. The network can dynamically allocate and reconfigure BWPs for different UEs, allowing the system to adapt resource allocation in real-time according to varying traffic demands, thereby improving network efficiency while managing complexity through structured dynamic management
Solution Approach 2:
The patent changes key radio resource parameters including bandwidth part configuration, subcarrier spacing, and cyclic prefix length based on traffic conditions. By dynamically adjusting these parameters, the system optimizes resource allocation for different service types and traffic patterns, improving overall network productivity while maintaining manageable complexity through parameter-based control
2Productivity
If UEs switch between configured BWPs based on traffic conditions, then resource utilization is optimized, but latency increases due to switching overhead
Solution Approach 1:
The patent configures multiple bandwidth parts in advance for each UE, with switching parameters pre-configured by the network. When traffic conditions change, the UE can quickly switch between pre-configured BWPs without extensive negotiation overhead, optimizing resource utilization while minimizing latency through prepared switching configurations
Solution Approach 2:
The patent implements mechanisms where UEs report traffic conditions and channel quality to the network, which then provides feedback on appropriate BWP switching decisions. This feedback loop allows the network to optimize switching timing and parameters, improving resource utilization while minimizing latency by making informed switching decisions based on real-time conditions
Data Source
AI summary
A wireless device receives a sidelink control information (SCI) that may schedule a transport block and may also indicate a first repetition value. The wireless device may also receive a transport block via a physical sidelink shared channel (PSSCH). Based on a comparison of the first repetition value received via the SCI and a repetition threshold, the wireless device may determine to transmit an acknowledgment for the received transport block. The wireless device may then transmit the acknowledgment for the received transport block.