Adaptive QoS Architecture for Scalable Multicast Services
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The current 3GPP Multimedia Broadcast/Multicast Service (MBMS) Architecture lacks scalability and adaptability to varying network conditions and heterogeneous user terminals, resulting in a non-scalable and non-adaptive service that cannot negotiate QoS values between network nodes, leading to suboptimal service delivery.
Innovation Solution
A method is introduced to provide a multicast or broadcast service through multiple packet streams, each transported via a single bearer service, with a network entity managing quality-of-service (QoS) attributes and constraints to select and establish only those streams that meet available network resources, allowing for dynamic adaptation and resource optimization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple packet streams are provided for multicast/broadcast service, then service quality and adaptability are improved, but network complexity and resource management overhead increase
Solution Approach 1:
The service is segmented into multiple independent packet streams, each with distinct QoS characteristics. The network entity separates the management of each stream individually, allowing selective establishment and filtering based on specific QoS constraints without managing the entire service as a monolithic unit.
Solution Approach 2:
The system dynamically adapts the number and type of packet streams provided based on real-time QoS constraints and network conditions. The network entity can selectively establish or release individual streams without affecting the entire service, enabling flexible response to changing requirements.
2Reliability
If QoS constraints are enforced for each packet stream, then service delivery quality is improved, but processing overhead and resource consumption increase
Solution Approach 1:
The network entity applies partial action by selectively enforcing QoS constraints only on the subset of packet streams that are actually established and transmitted. Not all available streams need to be processed or transmitted, reducing unnecessary processing overhead while maintaining quality for the streams that are delivered.
Solution Approach 2:
The system extracts and processes only the necessary QoS parameters for each individual packet stream that needs to be transmitted. By filtering and selecting only the relevant streams based on QoS constraints, the processing overhead is reduced compared to analyzing and managing all possible streams.
3Reliability
If all packet streams are established regardless of network conditions, then service availability is improved, but resource wastage and inefficiency increase
Solution Approach 1:
The network entity continuously monitors QoS constraints and network conditions, using this feedback to dynamically adjust which packet streams are established and transmitted. This feedback mechanism ensures that streams are only maintained when network conditions support them, preventing resource wastage while preserving service availability.
Solution Approach 2:
The system changes the operational parameters of packet streams based on QoS constraints and network conditions. Individual streams can be established, modified, or released by changing their QoS parameters, allowing the network to optimize resource utilization while maintaining service availability for supported streams.
4Productivity
If selective stream filtering is implemented, then resource efficiency is improved, but system complexity and filtering overhead increase
Solution Approach 1:
The filtering mechanism applies local quality control by evaluating QoS constraints individually for each packet stream rather than applying a uniform filtering rule to all streams. This localized approach allows efficient filtering based on specific stream characteristics and constraints without requiring complex global filtering logic.
Data Source
AI summary
The invention relates to a method for filtering and a network entity of the core network or the radio access network of a mobile communication system filtering streams belonging to a single user service. The packet streams, each being transported by a bearer service, provide a multicast or broadcast service and is delivered from a service center via the network entity to a mobile terminal. The network entity comprises a service manager providing a quality-of-service management function. The invention further relates to a communication system comprising the network entity. To provide an adaptive multimedia broadcast/multicast service QoS architecture that is scalable to a great number of users, the invention suggests providing the service in form of a packet streams, each being provided via a single bearer service, and equipping nodes within the distribution tree of the service filter capability allowing to (de)register bearer services providing the service based on the downlink quality-of-service constraints obtained from a service manager.