Uplink Channel Multiplexing and Prioritization for Collision Resolution
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently resolving collisions between physical uplink channels with different priorities, particularly when receiving conflicting multiplexing and prioritization indications, leading to inefficiencies and reduced reliability.
Innovation Solution
A method and apparatus for a user equipment (UE) to dynamically receive multiplexing and prioritization indications for overlapping physical uplink channels, allowing for dynamic multiplexing and prioritization based on these indications to resolve collisions, including multiplexing high and low priority channels and prioritizing high priority channels over low priority channels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If dynamic multiplexing is applied to combine high and low priority channels, then resource utilization is improved, but collision resolution complexity increases
Solution Approach 1:
The patent implements dynamic multiplexing where the UE determines whether to multiplex or drop low priority channels based on real-time collision detection and priority indications received from the network. This dynamic approach allows flexible resource utilization while maintaining manageable complexity through rule-based decision making.
Solution Approach 2:
The patent changes the state of channel resources by transitioning between multiplexed and dropped states based on priority indications and collision conditions. The system dynamically adjusts which channels are transmitted and which are dropped, optimizing resource utilization through parameter-based control.
2Reliability
If prioritization rules are strictly enforced, then high priority channel reliability is improved, but low priority channel transmission opportunities are reduced
Solution Approach 1:
The patent applies partial prioritization where high priority channels are guaranteed transmission during collisions, but low priority channels are not completely eliminated. Instead, they are selectively dropped only when necessary, allowing some transmission opportunities while maintaining high priority reliability.
Solution Approach 2:
The network provides prioritization indications to the UE as feedback, allowing the UE to make informed decisions about channel transmission. This feedback mechanism enables balanced prioritization that maintains high priority reliability while preserving low priority transmission opportunities when conditions permit.
3Adaptability or versatility
If multiplexing indications are dynamically adjusted, then adaptability to network conditions is improved, but processing overhead increases
Solution Approach 1:
The network provides multiplexing indications in advance through downlink control information, allowing the UE to prepare and configure channel transmission parameters before actual transmission occurs. This preliminary configuration reduces real-time processing overhead while maintaining adaptability.
Solution Approach 2:
The UE autonomously determines channel transmission decisions by processing multiplexing and prioritization indications locally, without requiring continuous network control for each transmission decision. This self-service approach reduces processing overhead while maintaining network adaptability.
Data Source
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AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a multiplexing indication indicating that a first high priority channel scheduled in a first set of resources is to be multiplexed with a low priority channel scheduled in a second set of resources. The UE may receive a prioritization indication associated with a second high priority channel scheduled in a third set of resources. The UE may transmit one or more channels, according to a prioritization or a multiplexing, that include the second high priority channel. The prioritization or the multiplexing may be based at least in part on the multiplexing indication or the prioritization indication. Numerous other aspects are provided.