Communication Server Identity Privacy Control in PTT Sessions
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Solution Overview
Problem
Current communication systems lack mechanisms to control the privacy of a participant's identity during a communication session, particularly in push-to-talk (PTT) over cellular (PoC) systems, where participants may need to hide their identity from others or selectively share it.
Innovation Solution
A system and method that utilize a communication server to process requests for adding participants to a session, establishing privacy rules based on participant identity information, privacy profiles, and lists to control the sharing of identity information between participants, using SIP and XML documents to manage these rules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If industry standards provide anonymity request mechanism for participants initiating or joining communication sessions, then participants can hide their identities when joining, but there is no mechanism to control privacy of participants that are added to an ongoing communication session
Solution Approach 1:
The patent segments privacy control into different scenarios: initial join privacy (existing standard) and mid-session addition privacy (new mechanism). It introduces separate privacy rules for added participants, allowing the system to handle different privacy requirements for different joining scenarios without overhauling the entire system.
Solution Approach 2:
The patent applies preliminary action by establishing privacy rules for added participants before they are actually added to the session. The floor controller determines and configures privacy settings in advance during the addition request processing, ensuring privacy control is in place before the participant joins the ongoing session.
2Reliability
If a participant's identity is shared with all other participants in a communication session, then transparency and trust are improved, but the participant loses control over who can see their identity information
Solution Approach 1:
The patent implements local quality by allowing different privacy levels for different participants. Instead of a uniform all-or-nothing identity sharing approach, the system enables the added participant's identity to be visible to some participants while hidden from others, based on the floor controller's discretion and configured privacy rules.
Solution Approach 2:
The patent introduces dynamics by making identity visibility configurable and changeable. Privacy rules for added participants can be adjusted by the floor controller based on session context, allowing the system to adapt identity sharing settings dynamically rather than being static.
Data Source
AI summary
A system and methods for controlling identity privacy in a communication session include processing, at a communication server, a request from a first participant of the communication session to add a second participant to the communication session. Based on the request, the communication server establishes a set of privacy rules related to the second participant that control sharing of identity information between the second participant and a third participant of the communication session.