Inactive-State Small Data Transmission Using UE Feedback

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing wireless communication systems waste power energy during small data transmission (SDT) procedures due to network-controlled SDT processes that do not align with the UE's actual situation, leading to inefficient power usage.

Innovation Solution

The UE generates and reports first information associated with the SDT procedure to the network device, allowing it to determine and configure the SDT procedure based on its capabilities and preferences, thereby reducing unnecessary power consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the network device controls the SDT procedure, then the network can manage resource allocation, but the UE's actual situation is not considered leading to power waste

Engineering Contradiction:

ImproveSDT procedure adaptability to UE conditionsVSAvoidpower consumption

Core Design Contradiction:

Adaptability or versatilityVSLoss of energy

Solution Approach 1:

The UE feeds back capability information and preference information to the network device. This feedback mechanism allows the network to adjust the SDT procedure configuration based on actual UE conditions, resolving the contradiction between network control and UE-specific adaptation while reducing unnecessary power consumption.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The UE autonomously determines whether to perform the SDT procedure based on received configuration information and its own conditions. This self-service approach enables the UE to make decisions aligned with its power state without requiring continuous network control, thereby reducing power waste.

Inventive Principle:

Principle #25Self-service

2Use of energy by moving object

If the UE performs SDT procedure in inactive state, then power consumption is reduced, but the procedure may not align with network requirements

Engineering Contradiction:

ImproveUE power consumptionVSAvoidSDT procedure reliability

Core Design Contradiction:

Use of energy by moving objectVSReliability

Solution Approach 1:

The network device receives capability information and preference information from the UE, providing feedback on whether the UE should perform SDT procedure. This ensures that the UE's autonomous decisions align with network requirements, maintaining reliability while enabling power savings.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The network device pre-configures the SDT procedure parameters based on UE capability information received in advance. This preliminary configuration ensures that when the UE autonomously decides to perform SDT, the procedure is already optimized for both UE power efficiency and network reliability requirements.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS20250338345A1Power saving for SDT procedure

Publication Date: 2025.10.30 APPLE INC

AI summary

Provided is a method for a user equipment (UE). The UE generates a first information for the UE for transmission to a network device. The first information is associated with a small data transmission (SDT) procedure in an inactive state of the UE. The UE obtains a first configuration information from the network device. The first configuration information is determined with reference to the first information. The UE determines whether to perform the SDT procedure in the inactive state according to the first configuration information. The UE, in response to determining to perform the SDT procedure in the inactive state, performs the SDT procedure in the inactive state according to the first configuration information.