초록 ▼

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

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.

대표청구항 ▼

The invention claimed is: 1. A method for providing a multicast or broadcast service from a service center via at least one network entity to a mobile terminal, wherein said multicast or broadcast service is provided in the form of a plurality of packet streams each being transported via a single be

The invention claimed is: 1. A method for providing a multicast or broadcast service from a service center via at least one network entity to a mobile terminal, wherein said multicast or broadcast service is provided in the form of a plurality of packet streams each being transported via a single bearer service, said network entity comprising a service manager providing a quality-of-service management function and the method comprising:receiving by said network entity information indicating the bearer services belonging to the multicast or broadcast service and the quality-of-service attributes required by the packet streams transported by the bearer services or required by packet stream combinations thereof, and establishing a service context comprising the received information,obtaining by said network entity from the quality-of-service management function quality-of-service constraints indicating a quality-of-service available for downstream data transmission for each downstream interface of the network entity,selecting by said network entity based on the quality-of-service attributes stored in the service context those bearer services from said bearer services belonging to the multicast or broadcast service, the streams of which are transmittable within the obtained quality-of-service constraints,establishing at least a part of the selected bearer services, wherein for each bearer service being established a link between the network entity and an upstream network entity is set up, andforwarding the packet stream of each established bearer service via the respective link to the mobile terminal.