Terminal Uplink Control Information Multiplexing Coding

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Solution Overview

Problem

Current radio communication systems face challenges in appropriately determining the coding units of uplink control information (UCI) with different priorities during multiplexing, which affects the efficient transmission of UCI on uplink channels.

Innovation Solution

A terminal and radio communication system that multiplexes uplink control information with different priorities on an uplink channel, using a control unit to determine the coding units based on specific conditions, allowing for appropriate coding and transmission of UCI.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If multiple UCI with different priorities are multiplexed on an uplink channel, then the transmission capacity and efficiency are improved, but the complexity of determining appropriate coding units increases

Engineering Contradiction:
Improvetransmission capacityVSAvoidcoding unit determination complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent segments the UCI into different coding units based on priority levels. High-priority UCI and low-priority UCI are separated into distinct coding units, allowing independent coding and transmission. This segmentation enables the system to handle multiple UCIs with different priorities efficiently while maintaining manageable complexity through standardized segmentation rules.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent applies different coding characteristics to different coding units based on their priority. High-priority UCI receives different coding parameters compared to low-priority UCI, allowing optimized transmission for each priority level. This local differentiation of coding quality enables efficient resource allocation without requiring complex unified coding solutions.

Inventive Principle:
Principle #3Local quality

2Productivity

If UCI with different priorities are multiplexed on an uplink channel, then resource utilization is improved, but the reliability of priority-based transmission may deteriorate

Engineering Contradiction:
Improveresource utilizationVSAvoidpriority-based transmission reliability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

By segmenting UCIs into separate coding units based on priority, the patent ensures that high-priority and low-priority information are transmitted with appropriate differentiation. This segmentation maintains reliability by ensuring priority-based handling while improving resource utilization through multiplexing of multiple priority levels on the same channel.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent changes coding parameters (such as coding rate, modulation scheme) based on UCI priority levels. This parameter differentiation ensures that high-priority UCI receives more robust transmission parameters while low-priority UCI uses optimized parameters, maintaining reliability across different priority levels while improving overall resource utilization.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS20240224283A1Terminal, radio communication system and radio communication method
Publication Date: 2024.07.04 NTT DOCOMO INC
  • US20240224283A1 patent drawing
  • US20240224283A1 patent drawing
  • US20240224283A1 patent drawing

AI summary

A terminal includes a control unit that multiplexes two or more uplink control information having different priorities on an uplink channel; and a communication unit that transmits an uplink signal using the uplink channel on which the two or more uplink control information is multiplexed, wherein the control unit determines a coding unit of the two or more uplink control information based on a specific condition.