Method and apparatus for providing multimedia broadcast/multicast service in mobile communication system
First Claim
1. A method for performing a point-to-multipoint service attach process in a mobile communication network, the method comprising:
- receiving a point-to-multipoint service attach request message, at a second network controller from a first network controller when a mobile terminal using at least one point-to-multipoint service which has been provided at a first cell moves from the first cell managed by the first network controller to a second cell managed by the second network controller, the point-to-multipoint service attach request message comprising a list indicating one or more point-to-multipoint services affected by the movement of the mobile terminal from the first cell to the second cell;
performing, at the second network controller, the point-to-multipoint service attach process for the mobile terminal according to the point-to-multipoint service attach request message, wherein the point-to-multipoint service attach process comprises adding one or more point-to-multipoint services identified in the point-to-multipoint service attach request message to a point-to-multipoint service list of the second network controller;
receiving, at the second network controller from the first network controller upon the mobile terminal leaving the second cell, a point-to-multipoint service detach request message comprising a list indicating one or more point-to-multipoint services affected by the leaving of the mobile terminal; and
performing, at the second network controller, a point-to-multipoint service detach process for the mobile terminal according to the point-to-multipoint service detach request message, wherein the point-to-multipoint service detach process comprises removing each of the point-to-multipoint services in the list of the point-to-multipoint service detach request message from the point-to-multipoint service list of the second network controller.
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Accused Products
Abstract
A method and apparatus is provided for providing one or more point-to-multipoint services, such as a multimedia broadcast/multicast service (MBMS), to one or more mobile terminals, or user equipment (UE). When one or more mobile terminals move to a new area of a mobile communication system managed by a different network element after joining a service, information is transmitted between network elements in a manner that facilitates the continued reception of the service by the mobile terminals that have moved while conserving network resources and increasing efficiency of the mobile communication system.
11 Citations
20 Claims
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1. A method for performing a point-to-multipoint service attach process in a mobile communication network, the method comprising:
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receiving a point-to-multipoint service attach request message, at a second network controller from a first network controller when a mobile terminal using at least one point-to-multipoint service which has been provided at a first cell moves from the first cell managed by the first network controller to a second cell managed by the second network controller, the point-to-multipoint service attach request message comprising a list indicating one or more point-to-multipoint services affected by the movement of the mobile terminal from the first cell to the second cell; performing, at the second network controller, the point-to-multipoint service attach process for the mobile terminal according to the point-to-multipoint service attach request message, wherein the point-to-multipoint service attach process comprises adding one or more point-to-multipoint services identified in the point-to-multipoint service attach request message to a point-to-multipoint service list of the second network controller; receiving, at the second network controller from the first network controller upon the mobile terminal leaving the second cell, a point-to-multipoint service detach request message comprising a list indicating one or more point-to-multipoint services affected by the leaving of the mobile terminal; and performing, at the second network controller, a point-to-multipoint service detach process for the mobile terminal according to the point-to-multipoint service detach request message, wherein the point-to-multipoint service detach process comprises removing each of the point-to-multipoint services in the list of the point-to-multipoint service detach request message from the point-to-multipoint service list of the second network controller. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A system for providing at least one point-to-multipoint service to a mobile terminal, the system comprising:
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a first network controller managing at least a first cell; a second network controller managing at least a second cell; and the mobile terminal, wherein, the first network controller is adapted to provide the at least one point-to-multipoint service to the mobile terminal when the mobile terminal is located in the first cell, and to transmit to the second network controller, when the mobile terminal moves from the first cell to a second cell, a point-to-multipoint service attach request message comprising a list indicating one or more point-to-multipoint services affected by the movement of the mobile terminal from the first cell to the second cell, wherein the second network controller is adapted to receive the point-to-multipoint service attach request message and perform a point-to-multipoint service attach process by adding the one or more point-to-multipoint services in the list of the point-to-multipoint service attach request message to a point-to-multipoint service list of the second network controller; wherein the first network controller is further adapted to transmit to the second network controller, upon the mobile terminal leaving the second cell, a point-to-multipoint service detach request message comprising a list indicating one or more point-to-multipoint services for the mobile terminal, and the second network controller is further adapted to receive the point-to-multipoint service detach request message and perform a point-to-multipoint service detach process by removing the one or more point-to-multipoint services in the list of the point-to-multipoint service detach request message from the point-to-multipoint service list of the second network controller. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification