UE Intra-UE Multiplexing Deadline Management
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional techniques for resolving collisions on wireless channels in wireless communications systems are inadequate, particularly in scenarios where user equipment (UE) is scheduled for simultaneous transmission on multiple channels with varying priority levels, leading to inefficiencies and potential data loss.
Innovation Solution
The described techniques enable a UE to determine an optimal order for dropping and multiplexing colliding low priority channels based on priority levels and grant timelines, allowing for efficient management of uplink channels to prevent collisions and ensure high-priority transmissions are maintained.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the UE multiplexes colliding low priority uplink channels, then the quantity of transmitted data increases, but the complexity of channel management increases and may conflict with high priority channels
Solution Approach 1:
The UE determines a multiplexing deadline for a set of low priority channels before actually multiplexing them. This preliminary determination of the deadline allows the UE to plan ahead and avoid conflicts with high priority channels, reducing the complexity of real-time channel management while maximizing data transmission.
Solution Approach 2:
The UE dynamically adjusts the multiplexing strategy based on whether a high priority grant is received before or after the multiplexing deadline. If received before the deadline, the UE drops colliding low priority channels; if received after, the UE multiplexes them. This dynamic adaptation optimizes both data transmission quantity and channel management complexity.
2Reliability
If the UE drops low priority channels that collide with high priority channels, then the reliability of high priority transmissions is improved, but the quantity of transmitted data decreases
Solution Approach 1:
The UE establishes a multiplexing deadline in advance, which serves as a reference point for making drop decisions. By determining this deadline before the actual transmission decision, the UE can reliably protect high priority channels while minimizing unnecessary data loss from low priority channels.
Solution Approach 2:
The UE changes the transmission parameter (drop or multiplex) based on the timing parameter of the high priority grant relative to the multiplexing deadline. This parameter-based decision-making optimizes the trade-off between reliability of high priority transmissions and quantity of transmitted data.
3Loss of time
If the UE determines the multiplexing deadline early, then the time for processing is reduced, but the precision of deadline determination may be compromised
Solution Approach 1:
The UE segments the deadline determination process into distinct components: determining the deadline for each low priority channel individually, then determining the overall multiplexing deadline for the set. This segmentation allows for precise calculation while maintaining efficient processing time.
Solution Approach 2:
The UE uses feedback from the high priority grant timing (whether received before or after the multiplexing deadline) to adjust the multiplexing strategy. This feedback mechanism ensures precise deadline determination is maintained while keeping processing time efficient through clear decision boundaries.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a grant scheduling a first higher priority channel that has a higher priority than each channel of multiple lower priority channels scheduled for the UE. The UE may drop a first lower priority channel of the multiple lower priority channels that at least partially overlaps in time with the first higher priority channel based on determining that the grant is received prior to a multiplexing deadline for the multiple lower priority channels. The UE may then transmit or receive a first transmission using the first higher priority channel and a second transmission using a second lower priority channel of the multiple lower priority channels based on the dropping.