Enhanced RedCap UE Channel Overlap Resolution

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Current communication systems face challenges in efficiently transmitting and receiving uplink and downlink data for enhanced RedCap UE in NR systems, particularly due to overlapping time slots for physical channels.

Innovation Solution

The proposed method involves identifying overlapping time slots for physical downlink shared channels (PDSCH), physical uplink shared channels (PUSCH), and other channels, allowing the enhanced RedCap UE to efficiently manage and process these overlapping channels.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If enhanced RedCap UE transmits and receives data in overlapping time slots for physical channels, then data transmission capability is improved, but device complexity increases

Engineering Contradiction:
Improvedata transmission capabilityVSAvoiddevice complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent implements dynamic channel selection by enabling the UE to adaptively switch between different physical channels (PDSCH, PUSCH, PUCCH) based on real-time slot overlap conditions. The UE dynamically determines whether to transmit or receive in each slot based on configured grant types and overlap detection, allowing flexible adaptation to varying traffic patterns and channel conditions without requiring complex permanent circuitry for all channel types simultaneously.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes operational parameters including transmission power levels, time slot allocations, and channel selection based on the detected overlap conditions. By adjusting these parameters dynamically according to the specific overlap scenario (e.g., configured grant Type 1 vs. Type 2, different PUCCH resource allocations), the system achieves improved data transmission capability while managing device complexity through parameter adaptation rather than structural complexity.

Inventive Principle:
Principle #35Parameter changes

2Productivity

If enhanced RedCap UE manages multiple overlapping physical channels, then communication efficiency is improved, but processing complexity increases

Engineering Contradiction:
Improvecommunication efficiencyVSAvoidprocessing complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent segments the channel management process into distinct handling procedures for different channel types (PDSCH downlink data, PUSCH uplink data, PUCCH control information) and different grant types (configured grant Type 1 and Type 2). By dividing the overlapping channel management into separate, standardized handling rules for each segment, the UE can process multiple channels efficiently through modular decision logic rather than requiring complex integrated processing for all channels simultaneously.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces an intermediary layer of channel determination logic that mediates between the physical channels and the UE's processing resources. This intermediary mechanism uses pre-configured rules and parameters (such as priority assignments, time slot configurations, and grant type specifications) to automatically resolve channel overlaps, reducing the immediate processing burden on the UE while maintaining high communication efficiency through systematic channel arbitration.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Adaptability or versatility

If enhanced RedCap UE supports configured grant Type 1 and Type 2 with overlapping channels, then service versatility is improved, but system complexity increases

Engineering Contradiction:
Improveservice versatilityVSAvoidsystem complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements a universal channel handling framework that accommodates both configured grant Type 1 (pre-configured resources) and Type 2 (dynamically granted resources) through the same fundamental overlap detection and resolution mechanisms. The system uses a unified approach to identify slot overlaps and apply appropriate transmission/reception decisions regardless of grant type, allowing the UE to support multiple service types and configurations without requiring separate complex processing paths for each grant type.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS20250056539A1Method and apparatus for communication of enhanced reduced capability user equipment in wireless communication system
Publication Date: 2025.02.13 SAMSUNG ELECTRONICS CO LTD
  • US20250056539A1 patent drawing
  • US20250056539A1 patent drawing
  • US20250056539A1 patent drawing

AI summary

The disclosure relates to a fifth generation (5G) or sixth generation (6G) communication system for supporting a higher data transmission rate. The disclosure provides a method performed by a user equipment (UE) in a communication system, comprising identifying a first physical downlink shared channel (PDSCH) scheduled by first downlink control information (DCI) associated with a first control resource set (CORESET); identifying a second PDSCH scheduled by second DCI associated with a second CORESET; identifying a physical uplink shared channel (PUSCH); identifying that the first PDSCH, the second PDSCH and the PUSCH are overlapped in time, wherein a first symbol of the PUSCH is between a first symbol of the first PDSCH and a first symbol of the second PDSCH; and receiving the first PDSCH or the second PDSCH, or transmitting the PUSCH.