UE Cancellation Timeline Determination Mixed Processing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In 5G new radio (NR) networks, there is a need for an uplink transmission cancellation mechanism that can determine processing time for user equipment (UE) configured with mixed processing capabilities, as existing standards do not provide a way to decide the minimum processing time in terms of various options of processing time in units of OFDM symbols.
Innovation Solution
The UE determines which processing capability to rely on to determine the minimum processing time for cancellation, considering factors such as uplink channel type, uplink channel priority, and the cause of cancellation, to decide whether to rely on a faster or slower capability for determining the processing time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a UE is configured with multiple processing capabilities (faster and slower), then the UE can adapt to different network conditions and transmission requirements, but it becomes unclear which processing capability to use for determining cancellation processing time
Solution Approach 1:
The patent applies local quality by associating different processing capabilities with different uplink channel types. Specifically, the first (slower) processing capability is used for cancellation of PUCCH transmissions, while the second (faster) processing capability is used for cancellation of PUSCH transmissions. This allows each local context (channel type) to use the appropriate processing capability, resolving the ambiguity of which capability to use while maintaining adaptability across different scenarios
Solution Approach 2:
The patent implements dynamics by making the processing capability selection dynamic rather than static. The UE dynamically selects which processing capability to use based on the specific cancellation scenario - whether it's PUCCH or PUSCH cancellation, and potentially other factors like network configuration. This dynamic selection mechanism allows the system to adapt to different conditions while providing clear guidance on capability selection
2Reliability
If the UE uses the slower processing capability for all cancellations, then the processing time is always sufficient, but the cancellation response time is increased and network efficiency is reduced
Solution Approach 1:
The patent applies local quality by differentiating processing capability usage based on the specific uplink channel being cancelled. For PUCCH cancellations, the slower first processing capability is used to ensure sufficient processing time and high reliability. For PUSCH cancellations, the faster second processing capability is used to minimize response time and reduce time loss. This localized approach ensures reliability where needed while optimizing for speed where possible
Solution Approach 2:
The patent implements parameter changes by varying the processing time parameter based on the cancellation type. The system changes the processing time parameter from the longer duration (associated with the slower capability) for PUCCH to the shorter duration (associated with the faster capability) for PUSCH. This parameter adjustment allows the system to balance reliability and response time according to the specific transmission type
Data Source
AI summary
Wireless communications systems and methods related to an uplink transmission cancellation mechanism that determines processing time for UEs configured with mixed processing capabilities are described. Specifically, methods and systems are provided for a UE to determine which processing capability to rely on to determine the minimum processing time for cancellation. For example, when a UE is configured with a faster processing capability and a slower processing capability, the UE may be configured to always rely on the faster, or the slower processing capability. Alternatively, the UE may be configured to consider factors such as the uplink channel type, uplink channel priority, the cause of the cancellation, the priority of uplink grant, or any combination thereof, to determine whether to rely on the faster or the slower capability to obtain the minimum processing time for cancellation.