SBFD UE Configuration for Interference-Aware Scheduling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication technologies face challenges in efficiently configuring and scheduling user equipment (UE) in subband-fullduplex (SBFD) networks, particularly in minimizing self-interference and cross-link interference while maintaining minimal UE complexity.
Innovation Solution
Proposed schemes involve configuring UE with DL or UL cluster configurations applied to sets of resource blocks, using semi-static and dynamic signaling to manage subband layouts, and adapting TDD features to select transmission directions, with restrictions on cluster combinations and guard bands to optimize scheduling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If subband-fullduplex scheduling is implemented to reduce interference, then interference reduction is improved, but UE configuration complexity increases
Solution Approach 1:
The patent segments the frequency spectrum into non-overlapping subbands, each configured for either downlink or uplink transmission. This segmentation allows the base station to transmit and receive on different frequency portions simultaneously, reducing self-interference and cross-link interference while managing UE complexity through standardized subband configuration parameters.
Solution Approach 2:
The patent introduces dynamic subband configuration where the base station can flexibly allocate subbands between downlink and uplink based on real-time traffic conditions and interference levels. This dynamic adaptation enables optimal interference management while maintaining manageable UE complexity through standardized configuration procedures.
2Adaptability or versatility
If flexible scheduling of SBFD-aware UEs is enabled to optimize resource allocation, then scheduling flexibility is improved, but configuration signaling complexity increases
Solution Approach 1:
The patent implements preliminary configuration of subband layouts and transmission directions before actual data transmission. The base station pre-configures which subbands are designated for downlink or uplink, and which UEs are SBFD-aware, allowing flexible scheduling during operation without complex real-time signaling for each scheduling decision.
Solution Approach 2:
The patent uses parameter-based configuration where the base station adjusts scheduling flexibility by modifying configuration parameters such as subband masks, transmission directions, and UE capability indicators. This parameter-driven approach enables flexible scheduling while keeping signaling complexity manageable through standardized parameter sets.
3Object-affected harmful factors
If cluster configuration is applied to sets of resource blocks to manage interference, then interference management is improved, but UE processing complexity increases
Solution Approach 1:
The patent divides the resource blocks into clusters or groups that share common interference characteristics. By configuring these clusters as units rather than individual resource blocks, the base station can manage interference more effectively while reducing UE processing complexity through standardized cluster configuration and application procedures.
Data Source
AI summary
Techniques pertaining to user equipment (UE) configuration and scheduling in subband-fullduplex (SBFD) networks are described. A UE receives a configuration in a SBFD radio access network (RAN). The UE then applies the configuration. In an event that the configuration comprises a downlink (DL) or uplink (UL) cluster configuration, the UE applies the DL or UL cluster configuration to a set of groups of resource blocks (RBs).