PoC Server Group Member Information Delivery
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Solution Overview
Problem
In Push-to-Talk over Cellular (PoC) sessions, invited users cannot access group information before participating, leading to unnecessary costs and user dissatisfaction when they discover unwanted participants.
Innovation Solution
The method involves a PoC server sending session group member information to the invited user, either within the session request message or upon request, based on the user's answer mode and supplementary information, allowing users to decide whether to join the session.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the session request message sent to the invited user does not contain session group member information, then the message structure remains simple and transmission is efficient, but the invited user cannot know the group information before participating in the session
Solution Approach 1:
The patent applies preliminary action by including the session group member information in the session request message before the invited user makes a participation decision. This allows the user to know the group information in advance (specifically the list of other participants) and decide whether to join the session based on that information, rather than discovering it after joining.
Solution Approach 2:
The session request message is enhanced to serve multiple functions: it not only invites the user to join the session but also provides the group member information. This multi-functionality resolves the contradiction by embedding additional information into the existing message structure without requiring a separate information transmission channel.
2Productivity
If the invited user joins the session without knowing group member information, then the session can be established quickly, but the user may discover unwanted participants and quit causing unnecessary costs
Solution Approach 1:
The patent enables the invited user to perform preliminary evaluation of the session by providing group member information before the user commits to joining. This allows the user to avoid joining sessions with unwanted participants, thereby preventing unnecessary communication costs and energy waste from aborting sessions later.
Solution Approach 2:
The patent applies preliminary anti-action by equipping the invited user with information about other participants before the session starts. This allows the user to take preventive action (declining the invitation) if they identify unwanted participants, rather than joining and then having to quit, thus avoiding the harmful effect of wasted communication resources.
3Loss of information
If group member information is always included in session request messages, then users can make informed decisions, but the message size increases and transmission overhead increases
Solution Approach 1:
The patent applies partial action by selectively including only the necessary group member information (specifically the list of other participants) in the session request message, rather than transmitting all possible session information. This provides the user with sufficient information to make an informed decision while keeping the message size manageable.
Data Source
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AI summary
The present invention is a method for obtaining group information by the invited user during the wireless PoC session, the method includes the step: PoC terminal of the session initiation user sending session request message which carries initiation user information and participator information to PoC server, and the PoC server sending session request message which carries initiation user information to PoC terminal of the invited user; wherein the PoC server sending member information of the session group to PoC terminal of the invited user, and enabling the invited user to obtain the member of the session group or determining the subsequent operation based on the information. The present invention is also a PoC system.