Patent ID: 7899391
Filing Date: 2011-03-01
Classification: H04L,H04W

Abstract:
1. A method providing a multicast or broadcast service to the user of a mobile terminal via a radio access network of a mobile communication system, wherein the multicast or broadcast service is associated to a plurality of bearers for providing the multicast or broadcast service, the method comprising the following steps executed by the mobile terminal: receiving a service description information for the multicast or broadcast service from a broadcast/multicast service centre (BM-SC), wherein the service description information indicates the plurality of bearers of the multicast or broadcast service using an extensible markup language (XML) schema and wherein the service description information further indicates predetermined bearer groups among the plurality of bearers, each predetermined bearer group comprising at least one of said plurality of bearers and each predetermined bearer group providing the multicast or broadcast service at a predetermined quality of service, activating the plurality of bearers associated to the multicast or broadcast service, receiving for each bearer comprised in one selected predetermined bearer group out of the bearer groups a respective service notification from the radio network controller in response to the activation, wherein the received service notification or service notifications inform the mobile terminal with respect to the establishment of the bearer or bearers of the selected predetermined bearer group for providing content data of the multicast or broadcast service via the air interface of radio access network, and receiving content data of the multicast or broadcast service via said at least one established bearer belonging to the selected predetermined bearer group and indicated by the at least one service notification.