Dual-SIM Paging Offset Management to Avoid LTE Paging Collisions

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Solution Overview

Problem

Dual SIM devices in LTE systems experience paging collisions and inefficiencies due to lack of standard mechanisms for handling paging monitoring and responding procedures, leading to degraded user experience and wastage of network resources.

Innovation Solution

A method and system for resolving paging collisions in User Equipment (UE) by transmitting network assistance information and receiving offset values from the network to manage paging occasions, and managing paging filters to optimize resource usage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If dual SIM devices monitor paging occasions for each SIM independently, then each SIM can receive its paging messages, but paging collisions occur between the two SIMs leading to loss of data throughput

Engineering Contradiction:

Improvepaging reception reliabilityVSAvoiddata throughput

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The network acts as an intermediary by providing assistance information (offset values) to the UE. This offset value mediates between the two SIMs' paging occasions, allowing the UE to adjust monitoring timing and avoid collisions while maintaining reliable paging reception for both SIMs

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The paging monitoring parameters (specifically the offset value) are dynamically changed based on network-provided assistance information. By modifying the offset parameter, the UE can shift paging occasion timing to avoid collisions between SIMs, thereby maintaining data throughput while ensuring paging reliability

Inventive Principle:

Principle #35Parameter changes

2Adaptability or versatility

If implementation-specific solutions are used for handling paging procedures in dual SIM devices, then devices can operate with existing RF capabilities, but standard support is lacking resulting in degradation of user experience and wastage of network resources

Engineering Contradiction:

Improvedevice operation capabilityVSAvoidnetwork resource wastage

Core Design Contradiction:

Adaptability or versatilityVSLoss of energy

Solution Approach 1:

The solution provides universal standard support for dual SIM devices through network-provided assistance information. This multi-functional approach works across different RF capability types (DSDS, DSDR, DSDA) without requiring device-specific implementations, eliminating network resource wastage while maintaining broad device compatibility

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The network provides feedback in the form of assistance information (offset values) to UEs. This feedback mechanism enables the network to optimize paging procedures for dual SIM devices, improving user experience and preventing network resource wastage through standardized, network-coordinated paging management

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS12543150B2Systems and methods for managing paging collision and paging filters in a user equipment

Publication Date: 2026.02.03 SAMSUNG ELECTRONICS CO LTD

AI summary

The disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. According to various embodiments of the disclosure, methods and apparatuses for resolving paging occasion are provided.