OTT Server Cache Selection for Media Request Controllability
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Solution Overview
Problem
Current OTT systems lack controllability over media data requests and content transmission, as transparent cache systems redirect requests without reaching the OTT server, making it difficult for service providers to track access metrics and increasing security risks from uncontrolled access requests.
Innovation Solution
An OTT server connected to cache servers determines the optimal cache server based on location and capability, sending a notification with session information to the user terminal and cache server, allowing the cache server to handle media data requests and enhance controllability by authenticating and reporting access statistics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a transparent cache system is used to reduce network traffic pressure, then network traffic pressure is reduced, but the OTT server loses control over media data requests and access metrics tracking becomes impossible
Solution Approach 1:
The patent introduces a session management entity as an intermediary between the OTT server and the transparent cache system. This entity receives session information from the OTT server, establishes session contexts, and manages the interaction between the cache system and user terminals. By doing so, it maintains the traffic reduction benefits of the transparent cache while restoring the OTT server's ability to control and track media data requests through session management.
2Speed
If the transparent cache system directly replies to user requests without involving the OTT server, then response speed is improved, but security risks increase due to uncontrolled access requests
Solution Approach 1:
The patent implements preliminary session establishment and authentication before actual media data transmission. The session management entity sets up session contexts in advance, including authentication information and access control parameters. This preliminary action allows the system to quickly respond to legitimate requests while automatically filtering out malicious ones, thus maintaining high response speed for authorized users while enhancing security.
3Loss of energy
If access requests are redirected to the transparent cache system, then network traffic from the server is reduced, but the OTT server cannot count access times and access duration
Solution Approach 1:
The patent establishes a feedback mechanism where the session management entity collects access metrics data (such as access times, duration, and patterns) from the transparent cache system and user terminals, then reports this information back to the OTT server. This feedback loop enables the OTT server to maintain visibility and control over access metrics while still benefiting from the traffic reduction provided by the transparent cache system.
Data Source
AI summary
A method, an apparatus, and a system for transmitting media data based on OTT are disclosed. The method includes: receiving, by an OTT server, a media data request initiated by a user terminal, where the OTT server is connected to at least one cache server; determining, by the OTT server, a cache server from the at least one cache server according to a location and/or a capability of the at least one cache server; sending, by the OTT server, a notification message, which carries session information, to the user terminal and the determined cache server, so that the determined cache server receives a media data request, which carries session information, from the user terminal, and sends corresponding media data to the user terminal.