Uplink Gap Period for Multi-TRP Transmit Parameter Preparation
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Solution Overview
Problem
In multi-TRP wireless communication systems, the lack of a specific gap period between uplink transmissions to different transmission and reception points (TRPs) leads to suboptimal transmit parameter preparations, affecting the performance and efficiency of PUSCH or PUCCH transmissions.
Innovation Solution
Implementing a controlled small gap period between uplink transmissions to different TRPs allows the wireless device to prepare and optimize transmit power, beam, and timing for subsequent transmissions, enabling improved performance and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If no gap period is applied between uplink transmissions to different TRPs, then transmission continuity is maintained, but transmit parameter preparation becomes suboptimal
Solution Approach 1:
The patent applies preliminary action by inserting a gap period before the uplink transmission to each TRP, during which the wireless device prepares transmit parameters (power, beam, timing) in advance. This ensures optimal parameter preparation for each TRP while maintaining overall transmission continuity through structured scheduling.
2Reliability
If a gap period is applied between uplink transmissions to different TRPs, then transmit parameter preparation is optimized, but transmission efficiency decreases
Solution Approach 1:
The patent applies dynamics by making the gap period configurable and adaptable. The network can dynamically adjust whether gap periods are applied, their duration, and which TRPs receive gap periods based on channel conditions, device capabilities, and traffic requirements. This allows the system to optimize between parameter preparation quality and transmission efficiency in real-time.
3Productivity
If uplink transmissions to multiple TRPs are performed consecutively without gap, then time utilization is maximized, but transmit parameter optimization is compromised
Solution Approach 1:
The patent applies preliminary action by scheduling gap periods before uplink transmissions to different TRPs, allowing the wireless device to prepare transmit parameters (power, beam, timing) in advance. This ensures optimal parameter precision for each TRP while maintaining structured time utilization through network-coordinated scheduling.
Data Source
AI summary
Apparatuses, systems, and methods for providing downlink control for multi-TRP transmission. A wireless device, comprising: at least one antenna; at least one radio coupled to the at least one antenna; and a processor coupled to the at least one radio and configured to cause the wireless device to: determine a gap period is to be applied between a first uplink transmission to a cellular base station via a first transmission reception point (TRP) and a second uplink transmission to the cellular base station via a second TRP; and perform the first and second uplink transmissions consecutively with the gap period applied between them.