Targeted Notification Message Area Filtering
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Solution Overview
Problem
In Mobile Broadcast Services (BCAST), existing mechanisms fail to control the target area for sending notification messages, leading to irrelevant terminals receiving notifications, which increases network and terminal loads.
Innovation Solution
Incorporating area information into the reception and notification messages, allowing the network side to control the target area by having terminals determine if they are within the specified area before receiving or executing notifications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If notification messages are sent to all terminals in the broadcast network, then all terminals can receive the notification, but irrelevant terminals also receive the notification which increases network and terminal loads
Solution Approach 1:
The patent segments the broadcast network into different area regions and assigns area identification information to both the network infrastructure and terminals. Notification messages are then segmented and targeted to specific areas, allowing the system to deliver notifications only to terminals within the designated area rather than all terminals network-wide, thus reducing unnecessary network traffic and terminal processing load while maintaining reliable delivery to relevant terminals
Solution Approach 2:
The patent implements preliminary action by having terminals acquire area information in advance through Service Guide (SG) or Service Guide Delivery Descriptor (SGDD) before receiving notification messages. The network side also prepares area identification information for notification messages beforehand. This preliminary preparation enables terminals to pre-filter notifications based on area matching, avoiding the need to process all incoming notifications and thereby reducing terminal load while ensuring reliable delivery to area-relevant terminals
2Loss of energy
If area information is added to notification messages to control target area, then irrelevant terminals can be excluded, but the message structure becomes more complex
Solution Approach 1:
The patent applies universality by designing area identification information that serves multiple functions: it identifies the target area for notification routing, enables terminal filtering decisions, and provides location context for the notification content. This multi-functionality allows the same data structure to reduce network load while maintaining relatively simple message formats, as the area information leverages existing broadcast service infrastructure and data formats rather than requiring entirely new complex structures
Data Source
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AI summary
A method and a device for receiving and sending information are provided. The method includes sending area information indicating a target area of a notification message to a terminal in a process of sending the notification message. The area information is added in the reception information of the notification message or in the notification message. The area information indicates an applicable area of the notification message, that is, the notification message is only applicable to a terminal in the area, so that a network side is capable of controlling a target area of sending a notification message, and a large number of irrelevant terminals are prevented from receiving a notification message, which thereby relieves the loads of a network and a terminal.