Dynamic Slot Format Indicator Configuration for Wireless Networks
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Solution Overview
Problem
Current wireless communication technologies, such as LTE and NR, face challenges in dynamically configuring slot formats to efficiently manage communication resources, particularly in scenarios with mobile users and varying interference levels, leading to increased reconfiguration delays and signaling overhead.
Innovation Solution
Implementing a method where a base station dynamically transmits indications of multiple sets of slot format indicator parameters to user equipment, allowing for dynamic selection and configuration of slot formats based on user mobility and interference conditions, using dynamic signaling to reduce reconfiguration delays and overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If traditional slot format configuration methods are used, then system stability is maintained, but reconfiguration delays increase and signaling overhead increases
Solution Approach 1:
The base station pre-configures multiple sets of slot format indicator parameters and stores them in the UE. When reconfiguration is needed, the UE can immediately switch to a pre-configured set without waiting for new parameter transmissions, thereby reducing reconfiguration delay while maintaining system stability through controlled selection of pre-prepared configurations.
Solution Approach 2:
The system dynamically selects which pre-configured slot format indicator parameter set to apply based on current channel conditions, interference levels, and traffic patterns. This dynamic selection mechanism allows rapid adaptation to changing conditions without the overhead of transmitting complete configuration sets, resolving the contradiction between speed and delay.
2Loss of information
If traditional slot format configuration methods are used, then configuration completeness is ensured, but signaling overhead increases
Solution Approach 1:
The slot format configuration is segmented into multiple independent parameter sets, each stored in the UE. Instead of transmitting complete configurations frequently, the system transmits only compact identifiers indicating which pre-configured set to use. This segmentation reduces signaling overhead while ensuring configuration completeness by maintaining multiple full parameter sets locally at the UE.
Solution Approach 2:
Multiple copies of slot format indicator parameter sets are stored in the UE memory. Rather than repeatedly transmitting identical or similar configuration data, the base station references these stored copies using compact indicators. This copying approach ensures that complete configuration information is available while minimizing the amount of signaling required to switch between configurations.
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 (BS), an indication of a plurality of sets of slot format indicator parameters. The UE may receive, from the BS, a communication that identifies a set of slot format indicator parameters from the plurality of sets of slot format indicator parameters. Numerous other aspects are provided.