M2M System Information Update via Secondary Superframe Headers

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Solution Overview

Problem

In M2M communication systems, existing technologies face challenges in efficiently managing system information updates for M2M devices without affecting general mobile stations and minimizing power consumption, especially when both types of devices coexist.

Innovation Solution

A method for M2M devices to receive and update system information by processing specific messages, such as secondary superframe header subpackets, which include transmission period information and dedicated ranging indicators, allowing for efficient communication and reduced power consumption without impacting general mobile stations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If system information is updated for all devices using existing technologies, then general mobile stations can receive updates, but M2M devices cannot efficiently receive updates and power consumption increases

Engineering Contradiction:

Improvesystem information update receptionVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The system divides system information into two separate types: MBSFNAOI (M2M Broadcast System Information) for M2M devices and legacy S-BRCH for general mobile stations. This segmentation allows M2M devices to receive only M2M-specific information through dedicated M2M ranges, while general mobile stations continue to receive their designated information, thereby reducing unnecessary power consumption for M2M devices.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The base station acts as an intermediary that transmits different types of system information through different ranges. It embeds MBSFNAOI within the M2M range and S-BRCH in the legacy range, enabling M2M devices to efficiently receive updates without affecting general mobile stations and minimizing overall power consumption.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Productivity

If dedicated M2M ranging is implemented, then M2M communication efficiency improves, but system complexity increases due to multiple information types

Engineering Contradiction:

ImproveM2M communication efficiencyVSAvoidsystem information management

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent segments system information into distinct types (MBSFNAOI and S-BRCH) transmitted through separate ranges. This segmentation improves M2M communication efficiency by providing dedicated information channels while managing complexity through clear separation of M2M-specific and legacy information streams.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different qualities of system information are provided for different device types: MBSFNAOI with M2M-specific parameters is transmitted to M2M devices, while S-BRCH with legacy parameters is transmitted to general mobile stations. This local quality approach optimizes communication efficiency for each device type without unnecessarily complicating the overall system.

Inventive Principle:

Principle #3Local quality

3Loss of information

If M2M devices receive all system information, then completeness is ensured, but power consumption increases and general mobile stations are affected

Engineering Contradiction:

Improvesystem information completenessVSAvoidpower consumption

Core Design Contradiction:

Loss of informationVSUse of energy by stationary object

Solution Approach 1:

The system segments information completeness by device type: M2M devices receive complete M2M-specific information (MBSFNAOI) through M2M ranges, while general mobile stations receive complete legacy information (S-BRCH) through legacy ranges. This ensures each device type receives all necessary information for its operation without unnecessary power consumption.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

M2M-specific system information (MBSFNAOI) is extracted from the legacy system information structure and transmitted separately through M2M ranges. This extraction allows M2M devices to receive only the information relevant to them, ensuring completeness for M2M operations while avoiding the power consumption associated with receiving and processing all legacy information.

Inventive Principle:

Principle #2Taking out (Extraction)

Data Source

PatentUS9906889B2Method and device for transmitting and receiving system information from a system supporting machine-to-machine communication

Publication Date: 2018.02.27 LG ELECTRONICS INC

AI summary

The present invention relates to various methods and devices that receive and update system information that is used for machine-to-machine (M2M) communication in a wireless connection system supporting the machine-to-machine communication. As an embodiment of the present invention, the method of receiving system information on an M2M instrument from the wireless connection system supporting the M2M may include: receiving, at the M2M instrument, a first secondary superframe header subpacket (S-SFH SP 3) 3 message that includes information on a transmission period during which a second S-SFH SP 3 message including M2M-dedicated ranging information is transmitted; receiving, at the M2M instrument, the second S-SFH SP 3 message on the basis of the transmission period information; and receiving, at the M2M instrument, a system configuration descriptor message that includes updated system information, when the M2M-dedicated ranging information in the second S-SFH SP 3 shows that system information on M 2M is updated.