Uplink Control Signal Multiplexing for Priority-Aware NR Transmission
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Solution Overview
Problem
Existing methods in 5G NR communication systems face challenges in improving uplink transmission efficiency, particularly when uplink control signals with different priorities overlap in time, leading to inefficiencies in resource utilization and transmission quality.
Innovation Solution
A terminal and communication method that vary parameters for transmitting uplink control signals based on the size of the signals, employing joint or separate encoding methods to optimize multiplexing of control signals with different priorities, thereby enhancing transmission efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple uplink control signals with different priorities are transmitted using separate encoding, then transmission reliability is improved, but device complexity and processing overhead increase
Solution Approach 1:
The patent segments the uplink control information into high-priority and low-priority portions, encoding them separately. This allows the high-priority control signals to be transmitted with guaranteed reliability while the low-priority signals can be transmitted efficiently, resolving the contradiction between reliability and complexity by applying different encoding strategies to different segments of the control information.
Solution Approach 2:
The patent applies different encoding qualities to different parts of the control information based on priority. High-priority control signals receive more robust encoding treatment while low-priority signals use simpler encoding, optimizing the overall system by matching the encoding complexity to the actual requirements of each control signal portion.
2Productivity
If multiple uplink control signals are multiplexed together, then resource utilization is improved, but transmission quality deteriorates due to priority conflicts
Solution Approach 1:
The patent segments control signals by priority level and processes them through different encoding paths. This segmentation enables efficient multiplexing of high and low priority signals in the same uplink transmission while maintaining the transmission quality of high-priority signals through separate, more robust encoding.
Solution Approach 2:
The patent introduces an intermediary prioritization mechanism that mediates between multiple control signals before transmission. This intermediary process determines the encoding and multiplexing strategy based on priority, allowing efficient resource utilization while protecting the transmission quality of critical high-priority control information.
3Reliability
If additional encoding is applied to ensure transmission quality, then reliability is improved, but processing overhead and complexity increase
Solution Approach 1:
The patent applies additional encoding only to the high-priority portion of control information where it is actually needed for reliable transmission. Low-priority control signals use minimal or no additional encoding, reducing the overall processing overhead while maintaining transmission quality for critical signals.
Solution Approach 2:
The patent applies encoding selectively rather than uniformly to all control information. By applying robust encoding only partially to high-priority signals and using simpler methods for low-priority signals, the system achieves the necessary reliability without incurring excessive processing overhead across the entire control information set.
Data Source
AI summary
A terminal that comprises: a control circuit that, in accordance with information about the size of at least one of a plurality of uplink control signals that have different degrees of priority, varies a parameter that is to be used for transmission of the plurality of uplink control signals; and a transmission circuit that transmits the plurality of uplink control signals.