Terminal Device Identifier Adjustment for Dual SIM Paging Optimization

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Solution Overview

Problem

In wireless communication systems, the identifier allocated to a terminal device is typically unchangeable, posing challenges in scenarios where adjustments are necessary, such as overlapping paging occasions in dual SIM devices, leading to inefficient battery usage and potential information loss.

Innovation Solution

A method allowing terminal devices to request adjustments to their identifiers, enabling flexible adjustment of paging occasions based on overlapping or non-overlapping communication networks, thereby optimizing power consumption and information monitoring.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the identifier allocated to the terminal device is kept unchangeable, then the system simplicity is maintained, but the adaptability to adjust paging occasions in dual SIM devices is reduced

Engineering Contradiction:
Improveidentifier adjustabilityVSAvoididentifier management complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements dynamic identifier adjustment by allowing the terminal device to send a first message to the network device requesting identifier modification. The network device responds with a second message containing adjustment indication information, enabling the terminal to dynamically change its identifier and corresponding paging occasion timing based on operational needs, such as avoiding overlaps in dual SIM scenarios.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the identifier parameter from a static, unchangeable value to a dynamic parameter that can be adjusted through network device authorization. The adjustment indication information modifies the identifier value, which subsequently changes the paging occasion timing parameters, allowing flexible adaptation of communication scheduling without fundamental system restructuring.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If the terminal device monitors multiple paging occasions simultaneously, then complete paging message coverage is achieved, but power consumption increases

Engineering Contradiction:
Improvepaging message monitoring completenessVSAvoidbattery power consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent dynamically adjusts paging occasion timing by modifying the identifier used for paging occasion calculation. When overlapping paging occasions are detected in dual SIM devices, the terminal requests identifier adjustment from the network device, which responds with adjusted timing parameters. This dynamic rescheduling ensures complete paging monitoring while minimizing the number of distinct paging occasions the terminal must monitor, thereby reducing power consumption.

Inventive Principle:
Principle #15Dynamics

3Adaptability or versatility

If paging occasions overlap in dual SIM devices, then both networks can be accessed, but information loss occurs and battery efficiency decreases

Engineering Contradiction:
Improvedual SIM network access capabilityVSAvoidpaging message loss
Core Design Contradiction:
Adaptability or versatilityVSLoss of information

Solution Approach 1:

The patent implements preliminary detection of paging occasion overlaps between dual SIM cards. When an overlap is detected, the terminal device proactively sends a first message to the network device requesting identifier adjustment before any paging message loss can occur. The network device provides adjustment indication information in advance, allowing the terminal to reschedule paging occasions to avoid overlaps, thus preventing information loss while maintaining dual SIM functionality.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP3993527B1Communication methods and apparatus
Publication Date: 2026.02.25 HUAWEI TECH CO LTD
  • EP3993527B1 patent drawingFigure 1~2
  • EP3993527B1 patent drawingFigure 3~4
  • EP3993527B1 patent drawingFigure 5

AI summary

This application provides a communication method and apparatus. The method includes: A network device pre-allocates a first identifier to a terminal device. When the terminal device has a requirement for adjusting the first identifier, the terminal device may send a first message carrying first information to the network device, to request the network device to adjust the first identifier. According to the method and the apparatus in this application, the identifier of the terminal device may be flexibly adjusted.