SMS over IP Network Capability Indicator for LTE Registration

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Solution Overview

Problem

Carriers adopting the LTE standard face challenges in re-engineering their voice call networks due to the transition from circuit-switched to packet-switched data transmissions, leading to inefficient SMS services and user experience issues when network capabilities do not support SMS over IP sessions.

Innovation Solution

Introduction of a unique network capability indicator, IMSvoSMS, which allows user equipment (UE) to determine whether the network supports SMS over IP, enabling registration for VoLTE and SMS over IP when supported, and opting for alternative methods when not, thereby optimizing resource usage and user experience.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the UE always performs registration for SMS over IP session, then the SMS service availability is improved, but the power consumption and network resource usage increase when the network does not support SMS over IP

Engineering Contradiction:

ImproveSMS service availabilityVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The network performs preliminary action by indicating SMS over IP support capability before the UE attempts registration. The UE receives an indication from the network about whether SMS over IP sessions are supported, and only performs registration when the network supports it, thereby avoiding unnecessary power consumption and registration failures.

Inventive Principle:

Principle #10Preliminary action

2Reliability

If the UE performs registration for SMS over IP session, then the SMS service capability is improved, but the network resource usage and signaling overhead increase when the network does not support SMS over IP

Engineering Contradiction:

ImproveSMS service capabilityVSAvoidnetwork resource usage

Core Design Contradiction:

ReliabilityVSQuantity of substance

Solution Approach 1:

The network performs preliminary action by indicating SMS over IP support capability before the UE attempts registration. This prevents unnecessary registration attempts and associated signaling overhead when the network does not support SMS over IP, thereby conserving network resources.

Inventive Principle:

Principle #10Preliminary action

3Adaptability or versatility

If the UE performs registration for SMS over IP session, then the service functionality is improved, but the registration process time and complexity increase when the network does not support SMS over IP

Engineering Contradiction:

Improveservice functionalityVSAvoidregistration process time

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

The network performs preliminary action by indicating SMS over IP support capability before the UE attempts registration. This allows the UE to skip unnecessary registration processes when the network does not support SMS over IP, thereby reducing registration time and process complexity.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS11184744B2Apparatus, systems and methods for enhancing short message service over internet protocol

Publication Date: 2021.11.23 APPLE INC

AI summary

Described herein are apparatuses, systems and methods for enhancing short message service (“SMS”) over Internet protocol (“IP”). The methods including at, a user equipment (“UE”) connected to a network, receiving an indication from the network, wherein the indication identifies whether the network supports an SMS over IP session, when the indication identifies that the network supports the SMS over IP session, registering the UE for voice communication and the SMS over IP session with the network, and when the indication identifies that the network does not support the SMS over IP session, registering the UE for voice communication without the SMS over IP session with the network.