Session Invitation Media Information Transmission
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Solution Overview
Problem
In traditional Push-To-x (PTx) systems, users invited to a session lack information about the session purpose and participants, causing inconvenience, and there is no method for invitees to communicate rejection reasons to the inviter, leading to repeated invitations without understanding the invitee's preferences.
Innovation Solution
A session invitation method and system where media information is transmitted upon invitation, allowing invitees to determine whether to join and to reject invitations with a reason, using first and second media information components stored and referenced by a server, and transmitted via SIP and RTP protocols.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If media information is transmitted to invitees before session establishment, then invitees can make informed decisions about session participation, but network traffic and system complexity increase
Solution Approach 1:
The patent extracts media information (session purpose, participant details) from the session establishment process and transmits it separately to invitees before the actual session begins. This allows invitees to review information and make informed decisions without requiring the full session infrastructure to be active, thereby reducing unnecessary session establishments and optimizing network resource usage.
Solution Approach 2:
The system performs preliminary transmission of media information to invitees before the session is formally established. This preliminary action enables invitees to evaluate whether they want to join the session based on the provided information, allowing them to reject invitations early if uninterested, thus preventing wasted network resources on unwanted sessions.
2Loss of time
If invitees can send rejection reasons to inviters, then repeated unnecessary invitations are reduced, but message transmission complexity increases
Solution Approach 1:
The patent implements a feedback mechanism where invitees can send rejection reasons back to inviters. This feedback loop allows inviters to understand why invitations were rejected and adjust their invitation strategies accordingly, reducing repeated unnecessary invitations. The feedback is transmitted through the existing SIP protocol framework, minimizing additional complexity.
3Loss of information
If a server stores and manages media components, then information delivery is improved, but system complexity and storage requirements increase
Solution Approach 1:
The patent uses copying by storing media components (audio, video, images) on the server and transmitting references or links to these components rather than the full media data itself. This allows the server to manage and deliver media information efficiently while minimizing actual data storage requirements. Invitees receive references to the media content, which can be accessed on-demand without duplicating large amounts of data across the network.
Data Source
AI summary
Session invitation method and system in a PTx communication system are disclosed. For session invitation, an inviting terminal adds first media information corresponding to session information in an invitation message and transmits it or transmits it through an RTP. Then, the first media information received by an invited terminal is checked and an invitee determines whether to accept the invitation before joining the session. When the invitation is rejected, the invited terminal adds second media information corresponding to a reason for rejection in a reject message and transmits it, or transmits it through the RTP.