Downlink Uplink Scheduling Using Resource Configurations
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Solution Overview
Problem
Current wireless communication systems face inefficiencies in managing downlink and uplink resource allocations for stationary user equipment, particularly due to high signaling overhead and power consumption associated with dynamic scheduling, which is unnecessary for static channel conditions.
Innovation Solution
Implementing a method where a base station schedules user equipment (UE) for uplink and downlink communication using a single Downlink Control Information (DCI) that configures sets of resources for downlink-only, uplink-only, or joint downlink and uplink communication, reducing control signaling overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If dynamic scheduling is used for resource allocation, then communication adaptability is improved, but signaling overhead and power consumption increase
Solution Approach 1:
The patent applies preliminary action by pre-configuring multiple resource sets (first resource set for downlink, second resource set for uplink) before actual communication occurs. The base station and UE are pre-provisioned with these resource configurations, so that when communication needs arise, they can immediately use the pre-configured resources without extensive signaling exchange, thereby reducing power consumption while maintaining adaptability.
Solution Approach 2:
The patent implements dynamics by enabling flexible switching between different resource sets based on communication needs. The system can dynamically select between the first resource set (downlink-only), second resource set (uplink-only), or combine them for joint communication, allowing adaptability while avoiding continuous dynamic scheduling overhead through selective activation of pre-configured resources.
2Adaptability or versatility
If dynamic scheduling is used for resource allocation, then communication adaptability is improved, but control signaling overhead increases
Solution Approach 1:
The patent reduces control signaling overhead by performing preliminary configuration of resource sets through higher-layer signaling (RRC signaling) rather than dynamic physical downlink control channel (PDCCH) signaling. The resource configurations are established in advance, eliminating the need for continuous dynamic scheduling messages while preserving the ability to adapt to different communication scenarios through the pre-configured options.
Solution Approach 2:
The system maintains communication adaptability through dynamic selection among pre-configured resource sets. The base station can indicate which resource set to use through compact signaling (such as DCI format 0_2 or 1_2 with resource indicator fields), providing flexibility without requiring full dynamic scheduling messages for each transmission.
3Manufacturing precision
If separate resource configurations are used for downlink and uplink, then resource allocation precision is improved, but device complexity increases
Solution Approach 1:
The patent merges the configuration management of downlink and uplink resources by establishing corresponding relationships between resource sets. The first resource set (downlink) and second resource set (uplink) are configured as pairs or groups, where the UE and base station jointly manage these related resource configurations. This unified approach maintains precise resource allocation while reducing device complexity through standardized configuration procedures and joint management mechanisms.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, downlink control information (DCI) that indicates one or more configurations for: a set of downlink resources for downlink-only communication, a set of uplink resources for uplink-only communication, or a set of downlink resources and a set of uplink resources for joint downlink and uplink communication. The UE may communicate, with the base station, based at least in part on the one or more configurations indicated by the DCI. Numerous other aspects are provided.