PoC Box Media Retrieval via Aggregation Proxy
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Solution Overview
Problem
In Push-To-Talk (PTT) over Cellular (PoC) systems, users cannot select or receive desired media stored in a PoC box, as the existing technology does not support voice mail functionality, leading to users receiving undesired media and limited media selection options.
Innovation Solution
A method and system that allows a PoC User Equipment (UE) to request and receive media information from a PoC box, enabling users to select and retrieve desired media by sending media information stored in the PoC box, using an aggregation proxy server to manage media storage and transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If all stored media are provided from the PoC box to the PoC client, then the PoC client can receive media without participating in the session, but the user receives undesired media and has limited selection rights
Solution Approach 1:
The patent extracts media information metadata from the complete media data stored in the PoC box, allowing the client to first receive and review only the essential information (titles, timestamps, durations) without being overwhelmed by all media content. This enables users to selectively request only desired media, solving the contradiction between comprehensive media availability and user control over media selection.
2Loss of energy
If media data is sent only to PoC clients participating in a PoC session in real time, then network resources are efficiently utilized, but users who do not participate in the session cannot receive media streams
Solution Approach 1:
The patent implements preliminary action by storing media information metadata in advance in the PoC box during session participation. When a user misses a session, they can later retrieve media information and selectively request specific media without needing to have been present during the original session. This maintains network efficiency by not continuously transmitting all media while ensuring media access availability on-demand.
3Reliability
If the PoC box stores all media sent in a session, then media can be retrieved later, but the storage system requires significant capacity and the retrieval process lacks user control
Solution Approach 1:
The patent segments the complete media content into individual media information metadata records, each representing a separate retrievable unit. Instead of storing and managing large continuous media files, the system stores structured metadata (titles, timestamps, durations) that can be independently queried and requested. This segmentation reduces storage complexity and enables precise user control over which specific media to retrieve.
Data Source
AI summary
A method is provided for managing media in a Push-To-Talk (PTT) over Cellular (PoC) box in an aggregation proxy server for sending media to a PoC User Equipment (UE) in a PoC system. The aggregation proxy server receives a PoC session control data request message which is associated with media information stored in the PoC box from the PoC UE. The PoC session control data request message for requesting the media information stored in the PoC box, is sent to the PoC box. The media information is received from the PoC box in response to the PoC session control data request message, and the media information received from the PoC box is sent to the PoC UE. The media information includes a parameter related to media stored in the PoC box.