Mobile Broadcast Notification Message for Terminal Power Reduction
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Solution Overview
Problem
Conventional mobile broadcast systems face high power consumption in terminals due to the need for continuous reception of Service Guide (SG) messages, even when there are no changes, leading to inefficiencies and increased power usage.
Innovation Solution
A method and apparatus for efficiently sending notification messages about BCAST service changes, allowing terminals to detect and respond to changes only when necessary, reducing unnecessary data reception and minimizing power consumption by determining the appropriate channel for transmission and using notification messages with specific headers and formats.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If terminals continuously receive Service Guide messages to ensure they have the latest service information, then information freshness is improved, but power consumption increases
Solution Approach 1:
The patent extracts the essential notification function from the complete Service Guide message by introducing a separate Notification Message that carries only change indicators. This allows terminals to receive minimal information (notification flag) without processing entire SG messages, thus reducing power consumption while maintaining information freshness.
Solution Approach 2:
The Service Guide information is segmented into two parts: a compact Notification Message (with header containing change indicators) and the full Service Guide message. Terminals first receive and process the small notification message to determine if changes exist, then selectively receive the full SG message only when necessary, reducing unnecessary power consumption.
2Adaptability or versatility
If Service Guide messages are transmitted frequently to ensure new terminals receive updates, then service availability is improved, but network resource usage increases
Solution Approach 1:
Instead of transmitting complete Service Guide messages to all terminals, the system applies partial action by sending only the essential notification header to indicate changes. This allows new terminals to quickly detect service availability changes without the network expending excessive energy transmitting full SG messages to every terminal.
Solution Approach 2:
The notification message acts as an intermediary between the network and terminals, conveying essential service change information in a compact form. This intermediary mechanism enables efficient communication of service availability status without requiring frequent transmission of complete Service Guide messages, thus reducing network energy consumption.
3Measurement precision
If terminals check for Service Guide updates continuously, then service change detection is improved, but processing overhead increases
Solution Approach 1:
The patent extracts the critical change detection function from complex Service Guide message processing by using a simplified notification message with clear header indicators. Terminals only need to check the notification header for change flags rather than processing entire SG messages, maintaining accurate service change detection while significantly reducing processing overhead.
Data Source
AI summary
A method and apparatus for transmitting a notification about broadcasting services in a broadcasting system are provided. The method includes detecting a notification event related to a broadcasting service; generating a notification message about the notification event; determining which channel is used for a transmission of the notification message; and transmitting the notification message to a terminal or a group of terminals over the determined channel.