Dynamic MBS Zone Management for Wireless Resource Optimization
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Solution Overview
Problem
Mobile broadcast service systems face challenges in efficiently managing multicast service areas, leading to wasted wireless resources and suboptimal service quality due to the inclusion of base stations not serving active users, especially in dynamic environments where user demand varies.
Innovation Solution
A system and method that dynamically manage multicast service zones by including or excluding base stations based on user demand, using a controller to manage service access, node apparatuses, and gateways to reserve and allocate wireless channels, and distribute data and service information efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed MBS zone is created including all base stations in advance, then the service area coverage is ensured, but wireless resources are wasted on base stations without active users
Solution Approach 1:
The patent implements dynamic MBS zone management where the service area is not fixed but continuously adjusted based on real-time user distribution. Base stations are dynamically added or removed from the MBS zone according to whether they have active multicast users, making the system adaptable to changing traffic patterns while optimizing resource utilization
2Adaptability or versatility
If wireless resources are allocated to all base stations for MBS, then service availability is improved, but resource efficiency deteriorates
Solution Approach 1:
The patent applies local quality by allocating wireless resources selectively to specific base stations based on their local user demand. Instead of uniform resource allocation across all base stations, each base station receives MBS resources only when it has active multicast users, achieving both service availability and resource efficiency through localized resource management
3Device complexity
If a single base station forms an MBS zone, then resource allocation is simplified, but macro-diversity effects are lost and service quality deteriorates
Solution Approach 1:
The patent segments the MBS zone into multiple sub-zones corresponding to individual base stations with active users. This segmentation allows the system to form multi-base-station MBS zones when needed (improving service quality through macro-diversity) while maintaining manageable complexity by organizing the zone as a collection of smaller, controllable units rather than a monolithic structure
Data Source
AI summary
The present invention relates to a system and a method for a mobile broadcast service, a controller, and a method for driving the controller. The system for a mobile broadcast service forms an MBS zone only with base stations having user demand for an MBS. For example, when there is a request for an MBS from a base station, if an MBS zone already exists which is providing the requested MBS, then the corresponding base station is included in the previously generated MBS zone. In contrast, if there are no more users using an MBS via a base station that is part of an MBS zone, then the base station in question is excluded from the MBS zone. Thus, an MBS zone can be dynamically formed by including or excluding a base station, forming an MBS zone, on the basis of an existence of an MBS user.