SCEF MBMS Capability Exposure for OTT Video Distribution
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Solution Overview
Problem
OTT third parties face heavy workload and complex management due to the need for interoperability testing with multiple operators and terminals when distributing videos using 3GPP networks, which lack multimedia broadcast multicast service (MBMS) capabilities, leading to increased video distribution and management loads.
Innovation Solution
A method and device that utilize a Service Capability Exposure Function (SCEF) to negotiate and expose MBMS capabilities, allowing third-party servers to request MBMS capability information from a Broadcast Multicast Service Center (BM-SC) and Home Subscriber Server (HSS), enabling MBMS broadcasts to user equipment (UE) without requiring separate negotiations with each operator or terminal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the operator exposes MBMS capability to OTT third party through existing SEES framework, then network transmission capability is provided, but MBMS supporting capabilities (media format support, media distribution, caching/transcoding, advertisement insertion) are not described, requiring interoperability testing with each OTT third party
Solution Approach 1:
The patent introduces a capability exposure function (SCEF) as an intermediary component that mediates between the OTT third party and the MBMS network infrastructure. The SCEF receives capability requests from OTT third parties, queries the MBMS capability information from the BM-SC, and returns the standardized capability data. This intermediary mechanism eliminates the need for direct interoperability testing between each OTT third party and the operator, as the SCEF provides a unified interface for capability exposure.
2Productivity
If OTT third party distributes videos using 3GPP network without MBMS capability exposure, then network transmission is possible, but heavy video distribution and management load occurs due to lack of standardized MBMS support
Solution Approach 1:
The patent enables the MBMS network infrastructure to provide universal video distribution capabilities to multiple OTT third parties through standardized capability exposure. By exposing MBMS capabilities (media format support, media distribution, caching/transcoding, advertisement insertion) through the SCEF interface, the system allows any OTT third party to utilize these standardized functions without implementing their own proprietary video distribution infrastructure, thereby reducing overall system complexity and improving video distribution efficiency.
3Adaptability or versatility
If each operator implements custom video support capability for each OTT third party, then specific operator requirements are met, but heavy workload and complex management occur
Solution Approach 1:
The patent segments the video distribution system into distinct functional components: the OTT third party responsible for content delivery, the SCEF responsible for capability exposure and interface management, the BM-SC responsible for MBMS infrastructure management, and the HSS responsible for subscription management. This segmentation allows each component to operate independently with standardized interfaces, eliminating the need for operators to implement custom video support capabilities for each OTT third party while maintaining operator-specific requirements through the standardized capability exposure mechanism.
Data Source
AI summary
Embodiments of the present application relate to the communications field, and provide a video distribution method and a device. The method includes: receiving, by an SCEF, a first request message sent by a third-party server, where the first request message includes an MBMS capability negotiation parameter that is used for video distribution and that is requested by the third-party server; sending, by the SCEF, a second request message to an HSS according to the first request message, to request the HSS to expose an MBMS capability; sending, by the SCEF, a third request message to a broadcast multicast service center BM-SC when the SCEF receives a second response message returned by the HSS when the HSS determines to allow the exposure of the MBMS capability, to request to obtain MBMS capability information exposed by the BM-SC; and sending the MBMS capability information obtained from the BM-SC to the third-party server.