Intra-UE Uplink Multiplexing Under Priority Collisions

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Solution Overview

Problem

Intra-UE multiplexing and prioritization of traffic with different priorities is required for 5G NR communication, as always dropping low priority uplink transmissions negatively impacts system performance.

Innovation Solution

A method for intra-user equipment multiplexing that identifies overlapping uplink transmissions with different priorities and applies specific multiplexing timeline conditions to enable simultaneous transmission of high and low priority traffic, including enhanced UCI bit sequence generation and collision handling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If low priority uplink transmissions are always dropped to prioritize high priority traffic, then high priority service reliability is improved, but system performance and resource utilization deteriorate

Engineering Contradiction:

Improvehigh priority service reliabilityVSAvoidsystem performance

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The patent changes the parameter of transmission priority handling from a static drop policy to a dynamic multiplexing policy based on timeline conditions. By introducing different multiplexing timeline conditions for high priority and low priority services, the system can adaptively decide whether to multiplex or drop transmissions, improving both reliability and system performance simultaneously

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent introduces dynamic decision-making through multiplexing timeline conditions that evaluate whether simultaneous transmission of high and low priority traffic is feasible. This dynamic approach replaces the static always-drop policy, allowing the system to optimize resource utilization while maintaining high priority service reliability

Inventive Principle:

Principle #15Dynamics

2Productivity

If multiplexing of high and low priority uplink transmissions is enabled, then system performance and resource utilization are improved, but transmission complexity and scheduling difficulty increase

Engineering Contradiction:

Improveresource utilizationVSAvoidmultiplexing complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent segments the multiplexing decision process into distinct timeline conditions for high priority and low priority services. By separating the evaluation criteria into specific time-based rules, the complexity is managed through structured segmentation rather than monolithic decision logic

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent establishes multiplexing timeline conditions in advance that predefine when multiplexing is permitted. This preliminary setup of time-based rules simplifies real-time decision-making by providing predetermined criteria, reducing the complexity of on-the-fly scheduling decisions

Inventive Principle:

Principle #10Preliminary action

3Reliability

If separate processing for high and low priority traffic is implemented, then service differentiation quality is improved, but processing time and overhead increase

Engineering Contradiction:

Improveservice differentiation qualityVSAvoidprocessing time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent merges the handling of high and low priority traffic into a unified multiplexing framework that uses common time resource units. By combining separate priority streams into a single multiplexed transmission when timeline conditions are met, the system maintains service differentiation while reducing processing overhead and time

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS12408164B2Intra-user equipment multiplexing method, user equipment, and radio node for enabling the method

Publication Date: 2025.09.02 JRD COMM (SHENZHEN) LTD

AI summary

An intra-user equipment (UE) multiplexing method is executed in a UE. The UE obtains respective timeline conditions for multiplexing uplink transmission with high priority and uplink transmission with low priority when detecting collision in time between the uplink transmissions with different priorities. The UE performs multiplexing of the uplink transmissions with different priorities when the respective timeline conditions are satisfied.