Uplink Configured Grant Validation for Wireless Conflicts
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Solution Overview
Problem
In wireless communications systems, the use of semi-static and dynamic grants for uplink transmissions can lead to inefficiencies due to conflicting schedules, which existing technologies fail to efficiently manage, resulting in misalignment between user equipment (UE) behavior and base station expectations.
Innovation Solution
A method where a UE determines whether to transmit an uplink transmission scheduled by a semi-static grant or a dynamic grant based on the receive time of the dynamic grant relative to the scheduled transmit time of the semi-static grant, validating or invalidating the grants accordingly to avoid conflicts and maximize throughput.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If semi-static grants are used to allocate uplink resources, then signaling overhead is reduced, but conflicts with dynamic grants may occur leading to transmission inefficiency
Solution Approach 1:
The patent introduces dynamic validation of semi-static grants by comparing timing information between semi-static and dynamic grants. The UE determines whether to transmit based on whether the dynamic grant receive time falls within a threshold window before the semi-static grant transmit time, making the semi-static grant transmission dynamic rather than fixed, thereby resolving conflicts while maintaining low overhead
Solution Approach 2:
The patent changes the parameter of grant validation from static to dynamic by introducing a time threshold parameter (e.g., N2 processing time). The UE uses this parameter to dynamically determine transmission behavior based on the receive time of dynamic grants relative to scheduled semi-static grant times, allowing adaptive resolution of conflicts
2Productivity
If the UE transmits both semi-static and dynamic uplink transmissions, then transmission opportunities are maximized, but conflicting transmissions cause interference and inefficiency
Solution Approach 1:
The patent applies preliminary anti-action by having the UE check for potential conflicts between semi-static and dynamic grants before transmission. The UE determines in advance whether a dynamic grant receive time falls within the threshold window, and if so, refrains from transmitting the semi-static grant, preventing conflicting transmissions before they occur
Solution Approach 2:
The patent performs preliminary validation of semi-static grants by comparing timing information before transmission occurs. The UE determines whether to validate or invalidate the semi-static grant based on the dynamic grant receive time, ensuring that only non-conflicting transmissions are performed, thereby maintaining both high opportunities and reliability
Data Source
AI summary
Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for efficiently determining whether to transmit an uplink transmission scheduled by a semi-static grant or a dynamic uplink transmission scheduled by a dynamic grant when the dynamic uplink transmission conflicts with the uplink transmission scheduled by the semi-static grant. In particular, if a user equipment (UE) determines that a dynamic grant is received within a threshold time before an uplink transmission scheduled by a semi-static grant, the UE may transmit the uplink transmission scheduled by the semi-static grant and refrain from transmitting the dynamic transmission. Alternatively, if the UE determines that a dynamic grant is received in advance of a threshold time before an uplink transmission scheduled by a semi-static grant, the UE may transmit the dynamic transmission and refrain from transmitting the uplink transmission scheduled by the semi-static grant.