MBSP Multimedia Broadcast Supplement for Public Warning Systems
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Solution Overview
Problem
Current Public Warning Systems (PWS) are limited in their ability to transmit multimedia information due to text message size constraints, making it impossible to provide essential public safety information such as maps, images, and videos to users during emergencies.
Innovation Solution
The implementation of a Multimedia Broadcast Supplement for Public Warning System (MBSP) method, which allows user equipment (UE) to receive multimedia broadcast supplements through specific system information blocks, enabling the transmission of public safety multimedia information beyond the limitations of legacy text message sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If text message size is limited in current PWS, then network load is reduced and system simplicity is maintained, but multimedia information cannot be transmitted to users
Solution Approach 1:
The patent segments the public warning information into two parts: essential text information transmitted through existing PWS channels, and supplementary multimedia information transmitted through separate MBSP channels. This allows the system to provide both text and multimedia content without requiring complete system redesign, thus reducing information loss while controlling complexity increase.
Solution Approach 2:
The patent introduces MBSP as an intermediary supplement to the existing PWS. The MBSP system acts as a mediator that carries multimedia information alongside the traditional text-based PWS, allowing multimedia transmission without directly modifying the core PWS architecture, thus balancing information completeness with system complexity.
2Loss of information
If text message size is limited in current PWS, then transmission efficiency is maintained, but public safety information completeness is insufficient
Solution Approach 1:
The patent merges the traditional PWS text message system with the new MBSP multimedia broadcast system. By combining these two systems, the solution achieves both complete public safety information (text + multimedia) and maintains transmission efficiency through the established PWS infrastructure, thus resolving the contradiction between information completeness and transmission capacity.
Solution Approach 2:
The MBSP system is designed to be universal and work alongside existing PWS implementations. It can carry various types of public safety information (text, images, videos, maps) through a unified broadcast mechanism, enabling the system to handle diverse information types without sacrificing transmission efficiency, thus improving both information completeness and productivity.
3Reliability
If multimedia information is added to PWS, then public safety information quality is improved, but network load increases during emergencies
Solution Approach 1:
The patent implements periodic broadcasting of MBSP multimedia information rather than continuous transmission. The system broadcasts multimedia content at scheduled intervals and updates only when necessary, which improves public safety information quality while controlling network load during emergencies by avoiding constant high-bandwidth consumption.
Solution Approach 2:
The MBSP system applies local quality enhancement by adding multimedia content specifically to areas where public safety warnings are needed, rather than uniformly increasing network load across the entire network. This targeted approach improves information quality in critical zones while minimizing overall network load increase.
Data Source
AI summary
The present invention relates to methods and apparatus for transmitting or receiving a Multimedia Broadcast Supplement for Public warning system (MBSP) message. One of the embodiments of the present invention, a method for receiving a multimedia broadcast supplement for public warning system (MBSP) message, the method performed by a user equipment (UE) and comprising: receiving a paging message including an MBSP indication field indicating an MBSP notification will be transmitted; receiving a system information block including the MBSP notification including an MBSP related information for allocating a resource for receiving the MBSP message; and receiving the MBSP message through the resource, wherein the MBSP message includes public safety multimedia information for warning a user of the UE.