Hybrid Resource Manager for IPTV Bandwidth Optimization
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Solution Overview
Problem
Broadband network operators face challenges in efficiently allocating resources between legacy and new IPTV services, as existing infrastructure may not be designed for IPTV distribution, leading to potential bandwidth issues, especially with the increasing adoption of IPTV and diverse client device capabilities.
Innovation Solution
A resource manager is implemented to dynamically manage bandwidth and resource allocation, determining the appropriate delivery format for each content stream based on client device capabilities and optimizing resource usage by switching between IPTV and legacy streams, and between wired and wireless networks, to minimize bandwidth requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If IPTV content is delivered over existing infrastructure using broadcast or unicast modes, then service delivery is achieved, but network bandwidth consumption increases significantly
Solution Approach 1:
The patent combines broadcast and unicast delivery modes into a hybrid approach. Content is initially broadcast to multiple receivers simultaneously, and only when a receiver requests the content does the system establish a unicast connection. This merging allows the system to leverage the bandwidth efficiency of broadcast while maintaining the on-demand capability of unicast, thereby reducing overall bandwidth consumption compared to pure unicast delivery.
Solution Approach 2:
The system dynamically switches between broadcast and unicast modes based on real-time conditions. When multiple receivers are present but content is not requested, broadcast mode is used to prepare content delivery. When content is requested, the system transitions to unicast mode for that specific receiver. This dynamic adaptation allows optimal bandwidth usage while ensuring reliable service delivery.
2Adaptability or versatility
If legacy infrastructure is used for IPTV distribution, then existing network resources are utilized, but bandwidth capacity is insufficient for increasing IPTV subscriptions
Solution Approach 1:
The patent makes the existing broadcast infrastructure serve multiple functions. The same broadcast channels that deliver linear content are also used to deliver on-demand IPTV content through the hybrid approach. This multi-functionality allows the legacy infrastructure to support both traditional broadcast services and new IPTV services without requiring separate dedicated bandwidth resources, thereby increasing adaptability to IPTV subscriptions.
Solution Approach 2:
The system performs preliminary content distribution through broadcast before actual user requests. By having content already distributed to the network edge through broadcast, the system prepares for potential on-demand requests without needing to transmit the full content over unicast channels. This preliminary action reduces the bandwidth burden when IPTV subscriptions increase.
3Adaptability or versatility
If content is delivered in multiple formats to support diverse client devices, then device compatibility is improved, but resource allocation complexity increases
Solution Approach 1:
The patent applies local quality by tailoring the content delivery format to each receiver's specific capabilities. The system determines whether to deliver content in broadcast or unicast mode, and in what format (IPTV or legacy), based on the individual receiver's supported formats. This localized adaptation ensures device compatibility while avoiding the complexity of managing all possible format combinations across the entire network.
Data Source
AI summary
A method of optimizing the delivery of content over a content delivery network to client devices in accordance with optimization rules is provided. Requests for allocation and release of content delivery resources over a content delivery network are monitored, and the processing capabilities of client devices receiving content over the content delivery network are determined. Network resources are re-allocated based on optimization rules and the processing capabilities, and the client devices are directed to use re-allocated resources for reception of content. Apparatus and client devices for performing the method are also disclosed.