MBMS Multicast Switching for Media Stream Transmission
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Solution Overview
Problem
In mobile communication, channel fluctuation leads to inefficient media stream transmission, particularly when multiple users request the same media resource, resulting in wastage of network resources.
Innovation Solution
Implementing a method for media stream transmission that switches to multicast mode when a preset threshold of segment requests is exceeded, using a broadcast multicast service center to multicast segment content to multiple users via an MBMS channel, thereby reducing the burden on network resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If media services are transmitted in unicast mode to multiple users, then each user can receive personalized media content, but transmission resources are wasted when multiple users request the same media service
Solution Approach 1:
The patent merges multiple unicast transmission streams into a single multicast stream when multiple users request the same media service. The network device detects that multiple users are requesting identical content and switches from individual unicast transmissions to a shared multicast transmission, thereby consolidating transmission resources and reducing overall network load while maintaining personalized delivery capability.
Solution Approach 2:
The patent implements dynamic transmission mode switching between unicast and multicast based on real-time network conditions and user request patterns. The network device monitors media service requests and adaptively changes the transmission mode - using unicast when only one user requests content and switching to multicast when multiple users request the same content, optimizing resource utilization dynamically.
2Reliability
If unicast transmission is used for media streams, then transmission reliability is maintained for individual users, but network resource efficiency decreases when multiple users access the same content
Solution Approach 1:
The patent combines multiple unicast transmission paths into a single multicast path for identical media content. By detecting that multiple users are receiving the same media service, the system consolidates these separate transmission streams into one efficient multicast stream, maintaining delivery reliability to all users while significantly improving network resource efficiency.
Solution Approach 2:
The patent changes the transmission parameter from unicast mode to multicast mode based on the number of users requesting the same media service. This parameter switching allows the system to optimize between reliability (unicast) and efficiency (multicast) by selecting the appropriate transmission mode according to current network conditions and user demand patterns.
3Ease of operation
If multiple unicast streams are transmitted for the same media content, then each user receives dedicated service, but the burden on network resources increases significantly
Solution Approach 1:
The patent merges multiple duplicate unicast streams into a single multicast stream when the same media content is requested by multiple users. This consolidation maintains the quality of dedicated service for each user while dramatically reducing the quantity of network resources consumed by eliminating redundant transmissions of identical data across the network.
Solution Approach 2:
The patent makes the transmission system universal by enabling it to function in both unicast and multicast modes depending on user demand. The same network infrastructure and protocol stack support both transmission types, allowing the system to provide dedicated service quality through unicast when needed while achieving resource efficiency through multicast when multiple users access the same content.
Data Source
AI summary
The present invention discloses a method and an apparatus for media stream transmission, and user equipment. According to the method and the apparatus for media stream transmission, and the user equipment in embodiments of the present invention, same media content, of multiple users, on unicast bearers is multicast by using an MBMS channel, so that a backhaul network resource and an air interface resource that is of a base station can be saved, thereby reducing costs for transmitting a media stream.