Downlink Reception Assumption Prioritization via PHY Priority

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Solution Overview

Problem

Current wireless communication systems, particularly in LTE and NR (5G) networks, face challenges in efficiently managing downlink transmissions and monitoring occasions that overlap in time, leading to conflicts in reception assumptions and prioritization, which can result in suboptimal data processing and interference.

Innovation Solution

The implementation of a method that receives signaling indicating downlink priority levels and determines a reception assumption based on predefined rules to process overlapping downlink transmissions and monitoring occasions, ensuring proper prioritization and processing of data even when multiple channels or reference signals have conflicting assumptions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple downlink transmissions and monitoring occasions are processed simultaneously without prioritization, then the system can maintain comprehensive monitoring coverage, but reception conflicts and interference increase leading to suboptimal data processing

Engineering Contradiction:
Improvereception assumption consistencyVSAvoiddata processing efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent segments overlapping downlink transmissions and monitoring occasions into different priority groups based on their importance levels. By dividing these transmissions into high-priority and low-priority segments, the system can apply different reception assumptions to each segment, ensuring that critical transmissions receive appropriate processing while less critical ones can be handled with simplified assumptions, thus resolving reception conflicts without sacrificing overall processing efficiency

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent changes the reception assumption parameters dynamically based on the priority level of overlapping transmissions. When high-priority transmissions are detected, the system adjusts reception assumptions to be more stringent and accurate; for lower-priority transmissions, it uses relaxed assumptions. This parameter adaptation allows the system to maintain reliability for critical data while improving processing efficiency for less critical data

Inventive Principle:
Principle #35Parameter changes

2Ease of operation

If downlink transmissions with different priority levels are handled with the same reception assumption, then the processing logic remains simple, but the quality of service for high-priority transmissions deteriorates due to interference from lower-priority ones

Engineering Contradiction:
Improveprocessing logic simplicityVSAvoidquality of service for high-priority transmissions
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent introduces dynamic adaptation of reception assumptions based on transmission priority levels. Instead of using a static, uniform reception assumption for all downlink transmissions, the system dynamically selects appropriate reception assumptions based on the detected priority levels of overlapping transmissions. This dynamic approach maintains simple processing logic through automated rule-based selection while significantly improving quality of service for high-priority transmissions by applying more robust reception assumptions when needed

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS11889545B2Downlink reception assumption prioritization based on downlink physical layer (PHY) priority
Publication Date: 2024.01.30 QUALCOMM INC
  • US11889545B2 patent drawing
  • US11889545B2 patent drawing
  • US11889545B2 patent drawing

AI summary

Aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for determining reference assumption, such as quasi co-location (QCL) assumption, prioritization based on downlink physical layer (PHY) priority.