Uplink Transmission Priority Management for Wireless Reliability
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Solution Overview
Problem
Conventional wireless communication systems face issues with managing multiple simultaneous periodic uplink transmissions, leading to dropped connections, data loss, and increased power consumption due to overlapping transmissions on different priority levels or types, especially when configured grants and sounding reference signals are involved.
Innovation Solution
The system determines a beam for conducting simultaneous uplink transmissions based on component carrier index, hybrid automatic repeat request (HARQ) identifier, beam measurement results, or transmission configuration ID to prioritize and manage overlapping transmissions, potentially dropping or transmitting overlapping portions of lower priority transmissions to maintain connection reliability and conserve battery power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple periodic uplink transmissions are managed simultaneously without priority hierarchy, then transmission diversity and data rate are improved, but connection reliability deteriorates due to dropped connections and data loss
Solution Approach 1:
The patent segments uplink transmissions into different priority levels by assigning hierarchical relationships between transmission configurations. Each uplink transmission is categorized with a priority level based on configuration hierarchy, allowing the system to segment resource allocation and transmission decisions into manageable priority tiers. This enables simultaneous management of multiple transmissions while maintaining connection reliability through structured priority handling.
2Productivity
If multiple simultaneous uplink transmissions are allowed without priority management, then spectral efficiency is improved, but energy consumption increases due to overlapping transmissions
Solution Approach 1:
The patent implements dynamic priority-based transmission management where the system adaptively selects which uplink transmissions to prioritize based on hierarchical relationships between configurations. When transmissions overlap, the system dynamically adjusts resource allocation by evaluating priority levels assigned to different transmission configurations, enabling efficient spectral utilization while conserving battery power through intelligent transmission selection rather than uniform simultaneous transmission.
3Reliability
If priority hierarchy is implemented for uplink transmissions, then connection reliability is improved, but device complexity increases due to hierarchy determination logic
Solution Approach 1:
The patent applies preliminary action by pre-establishing hierarchical relationships between uplink transmission configurations before actual transmissions occur. The network configures multiple uplink transmissions with predefined priority levels and hierarchical relationships in advance, allowing the user equipment to efficiently determine transmission priorities through simple comparison of pre-assigned configuration identifiers rather than complex real-time analysis. This reduces device complexity while maintaining reliable priority-based transmission management.
Data Source
AI summary
A method of wireless communication includes receiving a first configuration for a first uplink (UL) transmission at a first time. The first configuration indicates a first transmission configuration indication (TCI) state and a first identifier (ID). A second configuration for a second UL transmission is received at a second time. The second configuration indicates a second TCI state and a second ID. The second UL transmission has a same priority or a same type as the first UL transmission. The first UL transmission is determined to be higher in a hierarchy than the second UL transmission based on a relationship between the first ID and the second ID. The first UL transmission is transmitted with the first TCI state based on the determined hierarchy. The second UL transmission is transmitted with the first TCI state or the second UL transmission is dropped based on the hierarchy.