Patent ID: 8819112

Claim:
A method for changing a management object (MO) of a broadcast service guide in a broadcast service by applying a device management (DM) technique based on a two-way communication, the method comprising: installing, by a terminal, a MO tree of a hierarchy structure using a service guide MO defined by a device management (DM) server upon receiving the service guide MO transmitted by a broadcast server on behalf of the DM server, wherein the service guide MO has been formed as a format of MO for the service guide MO such that the service guide MO is composed of one or more parameters, and includes at least one management object (MO) associated with the broadcast service guide; directly transferring, by the terminal to the broadcast server, a request to change the service guide MO, wherein the transferred request allows the broadcast server to communicate with the DM server in order to obtain from the DM server information on the one or more parameters to be changed or updated in the service guide MO and transfer the changed or updated one or more parameters to one or more terminals, including the terminal, on behalf of the DM server; receiving, by the terminal, the changed or updated one or more parameters of the service guide MO transferred from the broadcast server on behalf of the DM server or directly from the DM server in response to the request to change the service guide MO, wherein if the terminal is the only receiver that is intended to receive the changed or updated one or more parameters, the changed or updated one or more parameters are transferred to the terminal in a point-to-point manner by the DM server, and if the terminal is not the only receiver that is intended to receive the changed or updated one or more parameters, the changed or updated one or more parameters are transferred to the terminal in a point-to-multipoint manner by the broadcast server; and updating, by the terminal, a corresponding portion of the service guide MO based on the received change-requested MO parameter using one of the Get, Add and Replace commands.