Service Decomposition in IP-Broadcast Networks
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Solution Overview
Problem
In IP-broadcast networks, traditional broadcast paradigms lead to inefficient bandwidth usage due to sending the same multimedia bundle to all users, regardless of their individual bandwidth capabilities, resulting in limited service richness and bandwidth waste in core and aggregation networks.
Innovation Solution
A method for service decomposition in IP-broadcast networks involves detecting a full service bundle, evaluating service identifiers, and decomposing it into main and sub service bundles using different transport stream protocols, such as MPEG-2 for main services and a modified Real-Time Protocol (RTP) for additional services, ensuring efficient bandwidth utilization and backward compatibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional broadcast paradigm is used to deliver service bundles to all users, then backward compatibility with legacy devices is maintained, but bandwidth is wasted in core and aggregation networks and service richness is limited
Solution Approach 1:
The service bundle is segmented into a first service bundle (essential services) and a second service bundle (enhanced services). The first bundle is delivered using traditional broadcast paradigm for backward compatibility, while the second bundle is delivered using IP multicast for efficient bandwidth utilization. This segmentation allows the system to maintain compatibility with legacy devices while enabling richer service offerings through efficient bandwidth usage in the second bundle.
2Loss of energy
If service bundles are delivered using IP multicast protocol, then bandwidth efficiency is improved, but compatibility with legacy broadcast systems is lost
Solution Approach 1:
The system segments service delivery into two paths: traditional broadcast for legacy device compatibility and IP multicast for bandwidth efficiency. By segmenting the service bundle and delivery mechanisms, the patent achieves both compatibility and efficiency without requiring complete system replacement.
Solution Approach 2:
The patent introduces an intermediary approach by maintaining both broadcast and IP multicast protocols simultaneously. The system acts as a mediator that can deliver services through either protocol depending on the service type and network conditions, thus bridging the gap between legacy systems and modern efficient delivery mechanisms.
3Adaptability or versatility
If multiple service bundles with different bandwidth requirements are delivered concurrently, then service customization is enabled, but the number of possible channels increases overwhelming and bandwidth is wasted in core network
Solution Approach 1:
The service bundle is segmented into essential and enhanced services, which are delivered through different protocols. This segmentation reduces the complexity of managing multiple channels by consolidating enhanced services into a single IP multicast stream that can be selectively received by users with sufficient bandwidth, rather than creating separate channels for each service combination.
Data Source
AI summary
In a method, an apparatus and a computer program product for service decomposition in IP-broadcast networks, a full service bundle is detected within a first transport stream protocol having a plurality of broadcast packets corresponding to respective broadcast services. The respective service identifiers of the plurality of broadcast packets are evaluated, and the full service bundle is decomposed to create a plurality of decomposed broadcast packets on the basis of the service identifiers. For at least one same service identifier the corresponding plurality of decomposed broadcast packets is sent with the first transport stream protocol as a main service bundle, and for at least one remaining same service identifier the corresponding plurality of decomposed broadcast packets is sent with a second transport stream protocol as a sub service bundle. The second transport stream protocol contains synchronization information of the first transport stream protocol.