Slot Format Update Timing for Half Duplex Full Duplex Mode Switching
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing slot format updates for seamless transitions between half duplex (HD) and full duplex (FD) modes, leading to potential dropped communications and reduced throughput due to insufficient preparation time for UE devices.
Innovation Solution
The method involves receiving information indicating a first slot format associated with FD mode and performing communication based on a prior slot format until a configured time period has elapsed, allowing for HD or FD communication according to the updated format, with the time period defined based on processes like DCI decoding, uplink preparation, or bandwidth part switch times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If slot format updating is performed immediately upon receiving indication information, then the adaptability and responsiveness of the system to mode switching requirements is improved, but the UE device does not have sufficient preparation time, leading to dropped communications and reduced reliability
Solution Approach 1:
The patent applies preliminary action by configuring a time period (K0, K1, or K2 values) between receiving the slot format indication and actually applying the new slot format. This allows the UE device to prepare in advance for the mode switching by decoding DCI, preparing uplink transmissions, or switching bandwidth parts before the new slot format takes effect, thus preventing communication drops while maintaining adaptability.
2Reliability
If a time period is configured for UE preparation before slot format application, then the reliability and completion rate of communications are improved, but the delay in applying updated slot formats increases, reducing system responsiveness
Solution Approach 1:
The patent applies dynamics by making the time period configurable and adaptable. Different time period values (K0, K1, K2) can be configured based on the specific preparation requirements - whether for DCI decoding, uplink transmission preparation, or bandwidth part switching. This allows the system to dynamically adjust the preparation time based on the specific scenario, balancing reliability improvement with minimizing delay.
3Manufacturing precision
If different time periods are configured for different preparation processes (DCI decoding, uplink preparation, bandwidth part switching), then the precision and appropriateness of preparation time allocation is improved, but the device complexity and configuration management increase
Solution Approach 1:
The patent applies segmentation by dividing the preparation time into distinct segments corresponding to different preparation processes. Separate time period values (K0 for DCI decoding, K1 for uplink preparation, K2 for bandwidth part switching) are configured for each specific preparation task. This allows precise allocation of preparation time for each process while keeping the configuration manageable through standardized parameter names and clear associations with specific preparation activities.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive information indicating a first slot format, wherein the information indicates one or more symbols associated with a full duplex (FD) format. The UE may perform communication based on a second slot format until a time period after the reception of the information indicating the first slot format, wherein the second slot format is prior to the first slot format. The UE may perform at least one of half duplex (HD) communication or FD communication in accordance with the first slot format after the time period has elapsed. Numerous other aspects are described.