Uplink Channel Multiplexing and Dropping Logic

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Solution Overview

Problem

The increasing number of user equipment (UEs) and the growing volume of data and control information in wireless communication systems pose challenges in efficiently using limited radio resources, particularly due to the high density of nodes and UEs, leading to issues with latency and the need for efficient methods to support various services with different requirements.

Innovation Solution

A method for determining whether first and second uplink channels satisfy a predetermined condition based on time domain overlap, allowing for multiplexing or dropping of channels to optimize resource usage, specifically involving processors and computer memory in user equipment and base stations to manage uplink channels effectively.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the number of user equipment and data volume increase to meet growing communication demands, then communication capacity and service coverage improve, but radio resource efficiency deteriorates due to limited available resources

Engineering Contradiction:
Improvecommunication capacityVSAvoidradio resource efficiency
Core Design Contradiction:
ProductivityVSLoss of energy

Solution Approach 1:

The patent combines multiple uplink channels (PUCCH and PUSCH) into a single transmission resource when they overlap in time, allowing simultaneous transmission of control information and data without requiring separate resources, thereby improving radio resource efficiency while maintaining communication capacity

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent performs preliminary determination of channel overlap conditions before transmission, enabling the UE to proactively select the optimal transmission method (multiplexing or dropping) based on predefined criteria, thus avoiding resource conflicts and improving overall resource utilization

Inventive Principle:
Principle #10Preliminary action

2Adaptability or versatility

If multiple uplink channels are transmitted simultaneously to support diverse services, then service versatility improves, but resource allocation complexity increases

Engineering Contradiction:
Improveservice support capabilityVSAvoidresource allocation complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements dynamic resource allocation by allowing the UE to adaptively switch between multiplexing and dropping strategies based on real-time channel overlap conditions and service requirements, enabling flexible support for diverse services while simplifying resource management through condition-based decision making

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The UE autonomously determines whether to multiplex or drop overlapping uplink channels based on predefined conditions without requiring complex base station coordination, enabling self-service resource management that reduces system complexity while maintaining service versatility

Inventive Principle:
Principle #25Self-service

3Productivity

If uplink channels are multiplexed to improve resource efficiency, then resource utilization improves, but transmission reliability may deteriorate due to potential interference

Engineering Contradiction:
Improveresource utilizationVSAvoidtransmission reliability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent applies preliminary anti-action by establishing predetermined conditions that determine when multiplexing should occur and when dropping should be performed instead, preventing potential transmission conflicts and reliability issues before they arise by proactively selecting the appropriate transmission strategy

Inventive Principle:
Principle #9Preliminary anti-action

Solution Approach 2:

When uplink channels overlap and multiplexing conditions are not met, the patent allows dropping of certain channels (effectively treating them as disposable) to prevent interference and maintain transmission reliability of critical channels, accepting temporary loss of non-critical data in exchange for overall system reliability

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Data Source

PatentUS12041648B2Method, user equipment, and storage medium for transmitting uplink channel, and method and base station for receiving uplink channel
Publication Date: 2024.07.16 LG ELECTRONICS INC
  • US12041648B2 patent drawing
  • US12041648B2 patent drawing
  • US12041648B2 patent drawing

AI summary

Provided is a user equipment, device, storage medium, and method comprising: on the basis of an overlap between a first uplink channel and a second uplink channel in a time domain, determining whether the first uplink channel and the second uplink channel satisfy a predetermined condition; on the basis of satisfaction of the predetermined condition, multiplexing the first uplink channel and the second uplink channel; and on the basis of dissatisfaction of the predetermined condition, dropping one of the first uplink channel and the second uplink channel. The predetermined condition comprises the following: a time difference between an end symbol of the first uplink channel and an end symbol of the second uplink channel has a value equal to or larger than a first value.