System Information Modification Notification in Cellular Terminals

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Solution Overview

Problem

Current methods for notifying system information modification in communication technologies require terminals to update all system information, even if only some pieces need to be modified, leading to increased power consumption and resource wastage.

Innovation Solution

A method and device for generating a modification indication sequence to specifically identify which system information needs to be modified, allowing for accurate notification and update of only necessary information, using techniques such as setting specific values or scrambling sequences.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the base station notifies the terminal to update all system information, then the terminal can ensure it has the correct system information, but the terminal's power consumption increases and resources are wasted

Engineering Contradiction:

Improvecorrectness of system informationVSAvoidterminal power consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The system information is segmented into multiple independent blocks (MIB, SIB1, SIB2, etc.), and the modification indication sequence selectively indicates which specific blocks need updating. This allows the terminal to update only the necessary segments rather than all system information, reducing power consumption while ensuring correctness of updated blocks.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The modification indication sequence provides localized notification by specifying exactly which system information blocks require updates. Instead of a blanket update notification, the base station sends targeted indications for specific blocks, enabling the terminal to apply updates only where needed, thus conserving energy while maintaining information accuracy.

Inventive Principle:

Principle #3Local quality

2Reliability

If the base station notifies the terminal to update all system information, then the terminal can ensure it has the correct system information, but resource wastage increases

Engineering Contradiction:

Improvecorrectness of system informationVSAvoidterminal resources

Core Design Contradiction:

ReliabilityVSLoss of substance

Solution Approach 1:

System information is divided into discrete blocks, and the modification indication sequence identifies only the specific blocks requiring updates. This segmentation enables the terminal to process and update only the necessary blocks, avoiding wasteful processing of unchanged information and conserving terminal resources.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Instead of performing a complete update of all system information blocks (excessive action), the terminal performs partial updates only on the blocks indicated by the modification sequence. This partial action approach eliminates resource wastage while ensuring all necessary updates are applied.

Inventive Principle:

Principle #16Partial or excessive action

3Use of energy by moving object

If a modification indication sequence is generated to specify which system information needs modification, then power consumption and resource usage are reduced, but the device complexity increases

Engineering Contradiction:

Improveterminal power consumptionVSAvoidnotification mechanism complexity

Core Design Contradiction:

Use of energy by moving objectVSDevice complexity

Solution Approach 1:

The modification indication sequence extracts only the essential information needed for selective updates from the complete system information set. By separating the notification function into a dedicated sequence that merely indicates which blocks need updates (without containing the actual system information), the mechanism achieves energy efficiency while keeping the added complexity minimal and focused.

Inventive Principle:

Principle #2Taking out (Extraction)

4Productivity

If the base station sends modification notification information, then the terminal can update only necessary system information, but the communication overhead increases

Engineering Contradiction:

Improveupdate efficiencyVSAvoidcommunication overhead

Core Design Contradiction:

ProductivityVSQuantity of substance

Solution Approach 1:

The modification indication sequence extracts only the essential identification data needed to locate specific system information blocks requiring updates. This extracted sequence is transmitted separately from the actual system information blocks, allowing efficient notification with minimal overhead compared to transmitting complete system information or using less targeted notification methods.

Inventive Principle:

Principle #2Taking out (Extraction)

Data Source

PatentUS11160012B2Methods and devices for notifying system information modification, and computer-readable storage media

Publication Date: 2021.10.26 BEIJING XIAOMI MOBILE SOFTWARE CO LTD

AI summary

A method and device are provided for notifying system information modification in the field of communication technology. The method includes: generating a modification indication sequence when first system information needs to be modified, wherein the modification indication sequence is configured to indicate the first system information to be modified, and the first system information is a piece of system information of multiple pieces of system information; generating modification notification information based on the modification indication sequence; sending the modification notification information to a terminal such that the terminal determines the first system information to be modified based on the modification notification information.