Configured Grant Occasion Reuse for Skipped PUSCH Reporting

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Solution Overview

Problem

Existing wireless communication systems, particularly 5G NR, face inefficiencies in resource utilization due to skipped configured grant occasions for physical uplink shared channel (PUSCH) transmissions, leading to wasted resources and suboptimal beam management and modulation and coding scheme selection.

Innovation Solution

The implementation of skipping PUSCH transmissions in configured grant occasions and utilizing these occasions for transmitting sounding reference signals (SRS) or channel state information (CSI) reports enhances resource utilization by improving beam selection and modulation and coding scheme adaptation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If PUSCH transmission is skipped in configured grant occasions, then resource utilization is improved by transmitting SRS or CSI reports, but the original data transmission function is lost

Engineering Contradiction:

Improveresource utilizationVSAvoidtransmission function flexibility

Core Design Contradiction:

ProductivityVSAdaptability or versatility

Solution Approach 1:

The configured grant occasion is designed to support multiple functions: it can transmit PUSCH data transmissions, SRS signals, or CSI reports depending on the transmission indication received by the UE. This multi-functionality allows the system to adapt the resource usage based on current needs, resolving the contradiction between resource utilization and transmission function flexibility

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system dynamically changes the transmission type in configured grant occasions based on received indications. The UE monitors for transmission indications that dynamically switch between PUSCH data transmission, SRS transmission, and CSI report transmission, allowing the resource usage to be optimized in real-time while maintaining adaptability

Inventive Principle:

Principle #15Dynamics

2Measurement precision

If configured grant occasions are used for SRS or CSI reports instead of PUSCH, then beam management and MCS selection are improved, but data transmission efficiency decreases

Engineering Contradiction:

Improvechannel state assessment accuracyVSAvoiddata transmission efficiency

Core Design Contradiction:

Measurement precisionVSProductivity

Solution Approach 1:

The system uses periodic configured grant occasions that can be dynamically assigned for different purposes. By periodically allocating specific occasions for SRS/CSI reports while maintaining other occasions for data transmission, the system achieves accurate channel state assessment without continuously sacrificing data transmission efficiency

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The UE autonomously determines the transmission type in each configured grant occasion based on received indications, allowing the system to self-manage the balance between measurement accuracy and data transmission efficiency without constant network intervention

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS20250280414A1Transmission of SRS or CSI based reports in skipped configured grant occasions

Publication Date: 2025.09.04 QUALCOMM INC

AI summary

A UE receives a configured grant for physical uplink shared channel (PUSCH) transmissions. The UE skips a PUSCH transmission in at least a portion of a configured grant occasion and transmits one or more of a sounding reference signal (SRS) or a channel state information (CSI) based report in the configured grant occasion. A network node outputs for transmission a configured grant for a UE to transmit PUSCH transmissions. The network node receives one or more of a SRS or a CSI based report in a portion of a configured grant occasion.