PoC Terminal Media Transmission Time Notification
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Solution Overview
Problem
In Push-to-talk over Cellular (PoC) systems, users cannot accurately determine the remaining time for media transmission, leading to unexpected interruptions due to the lack of an interval function for measuring transmission time.
Innovation Solution
A method and terminal apparatus that receive a media burst granted message from the PoC server, set media transmission time information, and notify the user of the remaining time, allowing for controlled media transmission and eliminating the need for conventional timers in the PoC server.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If conventional timers are used in the PoC server to measure transmission time, then the server can control media transmission duration, but the user cannot accurately determine the remaining time for media transmission
Solution Approach 1:
The patent introduces an intermediary mechanism where the PoC server acts as a mediator that not only controls the timer but also communicates the remaining time information to the user terminal. The server receives a media burst request, starts a timer, and sends back a media burst granted message that includes the remaining time information, thereby bridging the gap between server-side time control and client-side time awareness.
Solution Approach 2:
The patent implements a feedback mechanism where the PoC server provides remaining time information back to the user terminal after granting media burst permission. This feedback loop allows the user to know how much time remains for media transmission by receiving the remaining time information in the media burst granted message, enabling informed transmission decisions.
2Productivity
If the PoC server mediates every media transmission timing, then transmission control is centralized, but air and network resources are wasted due to unnecessary revoke messages and server mediation overhead
Solution Approach 1:
The patent applies preliminary action by providing the user with the remaining time information in advance through the media burst granted message. This allows the user to plan and complete media transmission within the allotted time without requiring continuous server mediation or sending revoke messages, thereby reducing server overhead and optimizing resource usage.
Solution Approach 2:
The patent enables self-service by allowing the user terminal to autonomously manage media transmission based on the remaining time information received from the server. The user can control the transmission duration without the server needing to actively monitor and send revoke messages, reducing server mediation time and network overhead.
3Ease of operation
If no remaining time information is provided to the user, then the system is simpler, but users experience unexpected interruptions due to inability to schedule transmissions
Solution Approach 1:
The patent segments the time information by providing the remaining time as a distinct parameter in the media burst granted message. This segmentation allows the user to separately understand the transmission duration without complicating the overall system architecture, enhancing ease of operation while delivering necessary time information.
Data Source
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AI summary
Disclosed is a terminal apparatus and a method for providing media transmission time information in a Push-to-talk over Cellular (PoC) system. The method includes receiving a media burst granted message in response to a media burst request message, and confirming media transmission time information in the received media burst granted message, and informing a user of the confirmed media transmission time information. By the method, it is possible to recognize media transmission time information included in a floor granted message transmitted from a PoC server and informing a user of the media transmission time information.