Uplink Transmission Priority Control in 5G Terminals
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Solution Overview
Problem
In future radio communication systems like 5G, there is a challenge in effectively controlling multiple uplink (UL) transmissions with different priorities that overlap in the same time domain, especially when they are transmitted in different carriers or cells, as existing technologies do not adequately address how to manage these overlapping transmissions efficiently.
Innovation Solution
A terminal is equipped with a receiving section to receive priority information and a control section that manages UL transmission processing based on the carrier used for transmission, allowing for appropriate prioritization and control of UL transmissions with varying priorities by multiplexing or dropping transmissions accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple UL transmissions with different priorities are transmitted in different carriers simultaneously, then communication capacity and spectrum efficiency are improved, but transmission control complexity and reliability degradation increase
Solution Approach 1:
The patent segments the control of UL transmissions by introducing priority levels and carrier-specific control mechanisms. Different UL transmissions are divided into priority groups (first priority and second priority), and control decisions are made separately for each priority level based on carrier conditions, power availability, and transmission requirements.
Solution Approach 2:
The patent changes the control parameters by introducing priority information as a new dimension for transmission management. The base station configures priority information for different UL transmissions, and the terminal uses this priority parameter to determine transmission behavior, power allocation, and carrier selection, transforming the control from simple on/off decisions to multi-parameter optimization.
2Reliability
If priority-based control is implemented for UL transmissions, then transmission reliability is improved, but control signaling overhead and processing complexity increase
Solution Approach 1:
The base station performs preliminary action by pre-configuring priority information for different UL transmissions before actual transmission occurs. This allows the terminal to make deterministic control decisions based on pre-established priority rules, reducing real-time processing complexity while ensuring reliable priority-based transmission control.
3Productivity
If overlapping UL transmissions are controlled based on carrier information, then transmission management efficiency is improved, but latency increases due to additional control decisions
Solution Approach 1:
The patent applies local quality by making control decisions specific to each carrier's conditions rather than applying a uniform control strategy across all carriers. The terminal evaluates carrier-specific parameters (power availability, transmission requirements, priority configurations) and makes localized control decisions for each carrier, improving management efficiency while minimizing latency through targeted rather than blanket control actions.
Data Source
AI summary
A terminal according to an aspect of the present disclosure includes: a receiving section that receives information related to a priority of a UL transmission; and a control section that controls, when a plurality of UL transmissions with different priorities overlap in a time domain, transmission processing of the plurality of UL transmissions, based on a carrier in which the plurality of UL transmissions is transmitted.