UL Subband Resource Configuration for Flexible 5G NR Uplink Slots
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently configuring uplink transmissions due to the lack of flexibility and timeliness in resource allocation, particularly in 5G NR networks with imbalanced downlink and uplink slot configurations, leading to poor performance in supporting large data volumes and edge coverage.
Innovation Solution
A system and method for configuring uplink transmissions by determining resource sets and symbol attributes for both cell-specific and UE-specific subbands, allowing for flexible parameter selection based on bandwidth parts and initial configurations, and utilizing subband full-duplex mechanisms to optimize resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional resource allocation methods are used in 5G NR networks, then the system maintains simplicity in configuration, but the uplink transmission efficiency and flexibility deteriorate due to imbalanced downlink and uplink slot configurations
Solution Approach 1:
The patent divides the uplink bandwidth into multiple subbands and configures different resource sets (first resource set for normal uplink slots, second resource set for subband full-duplex slots) for different frequency regions. This segmentation allows targeted optimization of uplink resources in specific subbands without complicating the entire system configuration.
Solution Approach 2:
The patent introduces dynamic resource allocation by configuring different resource sets based on slot types (normal uplink vs. subband full-duplex). The wireless communication device dynamically selects appropriate resource sets according to the current slot configuration, enabling flexible adaptation to varying uplink transmission requirements while maintaining systematic control.
2Adaptability or versatility
If subband full-duplex mechanisms are implemented to optimize resource allocation, then the flexibility and timeliness of resource configuration improve, but the system complexity increases
Solution Approach 1:
The patent applies different resource configuration strategies to different subbands based on their specific requirements. Cell-specific resource sets are configured for cell-wide subbands while UE-specific resource sets are configured for user-specific subbands, allowing localized optimization without requiring complete reconfiguration of the entire system.
Solution Approach 2:
The patent creates a universal resource configuration framework that handles both normal uplink slots and subband full-duplex slots through a unified mechanism. The same configuration approach can be applied to different slot types and different user equipment, providing multi-functional capability while maintaining configuration simplicity.
3Loss of time
If multiple resource sets are configured for different subbands, then the timeliness and effectiveness of resource utilization improve, but the difficulty of configuration and management increases
Solution Approach 1:
The patent pre-configures multiple resource sets (first resource set for normal uplink, second resource set for subband full-duplex) in advance through RRC signaling. The wireless communication device stores these pre-configured resource sets and quickly switches between them based on slot type indicators, eliminating the need for real-time resource negotiation and reducing configuration management overhead.
Solution Approach 2:
The patent introduces slot type indicators as intermediaries that simplify the mapping between slot configurations and resource sets. Instead of directly managing complex resource allocations, the system uses these indicators as a simple signaling mechanism to trigger the appropriate pre-configured resource set, reducing the difficulty of configuration management.
Data Source
AI summary
Presented are systems, methods, apparatuses, or computer-readable media for configuring resources for uplink (UL) transmissions. A wireless communication device may receive, from a wireless communication node, a configuration of resources for uplink (UL) transmission. The wireless communication device may determine at least one resource for an UL subband of the wireless communication device.