Downlink Control Information for Faster Disaster Warning Delivery
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Solution Overview
Problem
Existing disaster warning systems in mobile communication networks experience delays in delivering timely disaster warning information due to the lengthy process of determining warning indications from paging messages, which is inconsistent with the urgency required for disaster alerts.
Innovation Solution
The method involves carrying disaster warning information in downlink control information (DCI) using a short message indicator, allowing user equipment to directly obtain disaster warnings without parsing paging messages, thereby reducing reception time and improving timeliness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If disaster warning information is delivered through paging messages, then the warning can be transmitted to user equipment, but the reception time is lengthy and timeliness is compromised
Solution Approach 1:
The patent extracts the disaster warning information from the paging message structure and places it directly into the DCI (Downlink Control Information) format. This extraction allows the warning information to be delivered through a more direct and efficient channel, eliminating the need for user equipment to parse complete paging messages and significantly reducing reception time while maintaining delivery reliability
Solution Approach 2:
The patent segments the disaster warning information from other paging message components and transmits it as a standalone element within the DCI structure. This segmentation enables user equipment to quickly identify and process only the critical warning portion without being burdened by the full paging message parsing process, thus improving timeliness
2Loss of information
If user equipment parses paging messages to determine warning indications, then complete warning information can be obtained, but the processing time increases
Solution Approach 1:
The patent extracts only the essential disaster warning information elements from the paging message and places them directly into the DCI. This extraction ensures that user equipment receives complete warning information without needing to parse the entire paging message structure, thereby maintaining information completeness while drastically reducing processing time
Solution Approach 2:
The patent performs preliminary preparation by pre-formatting the disaster warning information into the DCI structure before transmission. This preliminary action ensures that when user equipment receives the DCI, the warning information is already in the correct format and location, eliminating the need for complex parsing operations and reducing processing time
Data Source
AI summary
A wireless communication network transmits disaster warning information using downlink control information. An information transmission method includes: delivering downlink control information (DCI) carrying disaster warning information, in which the disaster warning information is carried in an SMS indication in the DCI, and indicates that a disaster has occurred or predicts that a disaster is to occur. One or more reserved bits of the short message of the downlink control information may be used to carry the disaster warning information.