Multi-SIM Paging Reception Method Using Segmented Lists

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Solution Overview

Problem

Current multi-SIM implementations in user equipment (UE) lack standardized support, leading to complexity and unpredictable behavior, which affects network functionality and user experience due to varying implementations without 3GPP specifications.

Innovation Solution

A method for performing paging reception in UE, involving the reception of a paging message with a first list of UE identities and a second list of paging causes, where the UE determines if its identity is in the first list and forwards the paging cause to the upper layer if indicated in the second list, enabling support for multi-SIM operations and network switch requests.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multi-SIM operations are supported without standardized specifications, then device versatility is improved, but UE behavior predictability and network functionality deteriorate

Engineering Contradiction:
Improvemulti-SIM operation supportVSAvoidUE behavior predictability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent introduces specific parameters including a first list for UE identities, a second list for paging causes, and a flag indicating whether the second list is present. These parameter changes enable standardized interpretation of paging messages in multi-SIM scenarios, allowing UEs to reliably determine which SIM should respond to paging while maintaining support for multiple SIM operations.

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If implementation-specific multi-SIM handling is used, then device flexibility is improved, but complexity for UE vendors and unexpected behaviors increase

Engineering Contradiction:
Improvemulti-SIM implementation flexibilityVSAvoidUE implementation complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent standardizes multi-SIM paging handling by introducing specific parameters: a first list containing UE identities, a second list containing paging causes, and a flag indicating the presence of the second list. These standardized parameters provide a uniform interface for multi-SIM operations, reducing implementation complexity while maintaining flexibility.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent segments the paging message into distinct components: a first list for UE identities and a second list for paging causes. This segmentation allows the UE to systematically process each component separately, determining which SIM should respond based on the UE identity match and the paging cause indication, thereby simplifying the overall handling logic.

Inventive Principle:
Principle #1Segmentation

3Reliability

If standardized paging procedures are implemented for multi-SIM, then network functionality is improved, but paging message complexity increases

Engineering Contradiction:
Improvenetwork functionalityVSAvoidpaging message structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent segments the paging message into distinct components: a first list for UE identities and a second list for paging causes. This segmentation allows the UE to systematically process each component separately, determining which SIM should respond based on the UE identity match and the paging cause indication, thereby simplifying the overall handling logic despite the enhanced structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent extracts the paging cause information into a separate second list within the paging message. This extraction allows the UE to independently evaluate the paging cause after matching its identity, enabling standardized decision-making for multi-SIM scenarios without requiring complex integrated processing of all paging information.

Inventive Principle:
Principle #2Taking out (Extraction)

4Adaptability or versatility

If UE monitors multiple networks for paging, then multi-SIM operation capability is improved, but energy consumption and processing load increase

Engineering Contradiction:
Improvemulti-network paging monitoringVSAvoidUE energy consumption
Core Design Contradiction:
Adaptability or versatilityVSUse of energy by moving object

Solution Approach 1:

The patent extracts the paging cause information into a separate second list within the paging message. This extraction allows the UE to independently evaluate the paging cause after matching its identity, enabling standardized decision-making for multi-SIM scenarios without requiring complex integrated processing of all paging information, thereby reducing processing load and energy consumption.

Inventive Principle:
Principle #2Taking out (Extraction)

Data Source

PatentUS12143962B2Method of performing a paging reception and user equipment using the same
Publication Date: 2024.11.12 SHARP KK
  • US12143962B2 patent drawing
  • US12143962B2 patent drawing
  • US12143962B2 patent drawing

AI summary

A method of performing a paging reception and a UE using the same are provided. The method includes: receiving a paging message, wherein the paging message comprises a first list; determining whether a UE identity of the UE included in the first list; determining whether a paging cause corresponding to the UE identity indicated by a second list of the paging message after determining that the UE identity included in the first list; and forwarding the paging cause to an upper layer of the UE in response to the paging cause being indicated by the second list.