Remote Party Notification in IMS Media Replication
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Solution Overview
Problem
In 3GPP Release 10 IMS systems, remote parties are unaware of additional users or devices joining a collaborative session, leading to privacy and billing concerns, as they are not informed or consulted about the replication of media flows to new devices.
Innovation Solution
Implementing additional signaling to notify remote parties of new device additions and allowing them to accept or reject these changes, using an extended Session Description Protocol (SDP) with an 'a=target' attribute and out-of-band or in-band signaling to inform users of the requested IUT operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If media flow replication is implemented to allow multiple devices to participate in a collaborative session, then the versatility and collaboration capability of the system is improved, but the privacy and billing control for remote parties deteriorates as they are not informed of the changes
Solution Approach 1:
The system implements feedback by notifying the remote party of media flow replication requests through signaling messages. The remote party receives information about the requested replication, can review the details, and provides feedback by accepting or rejecting the request. This ensures the remote party remains informed and maintains control over session changes.
Solution Approach 2:
The system performs preliminary action by notifying the remote party before actually implementing the media flow replication. The notification is sent prior to the replication taking effect, allowing the remote party to review and provide consent in advance. This prevents unexpected changes and gives the remote party time to prepare for the session modification.
2Productivity
If media flow replication is performed without remote party notification, then the system operation efficiency is improved, but the privacy and billing concerns of remote parties are not addressed
Solution Approach 1:
The system uses feedback mechanisms to notify remote parties of replication requests and receive their consent. This feedback loop ensures privacy and billing concerns are addressed while maintaining efficient operation. The remote party's response is recorded and used to determine whether the replication should proceed.
Solution Approach 2:
The notification is sent as a preliminary action before the replication is executed. This allows the system to maintain high productivity by proceeding with replication once consent is obtained, while still addressing privacy and billing concerns through advance notification and consent mechanisms.
3Ease of operation
If the system automatically replicates media flows to new devices, then the ease of operation is improved, but the control and awareness of remote parties over their session deteriorates
Solution Approach 1:
The system implements feedback by notifying the remote party of the requested replication and waiting for their response. This feedback mechanism maintains ease of operation for the initiating party while ensuring the remote party retains control over their session. The remote party can accept or reject the replication based on their preferences.
Solution Approach 2:
The system performs preliminary notification before replication, allowing the remote party to review and provide consent in advance. This preliminary action maintains ease of operation by automating the process once consent is given, while ensuring the remote party maintains control and awareness of session changes.
Data Source
AI summary
A system and method for remote party restrictions in a communications system are provided. A method for controller operations includes receiving a request from a first communications device to replicate a media flow that is being transmitted to the first communications device from a second communications device during a session, where the replicated media flow is to be provided to a third communications device, and where the second communications device is operated by a remote user. The method also includes allocating resources to a transmission of the replicated media flow to the third communications device, notifying the remote user of the request, and determining a response of the remote user to the request.