Abstract:
A method and apparatus for supporting mobility in a mobile broadcasting system in which Electronic Service Guide (ESG) discovery is required. The mobility support is classified into three ways according to three different aspects. The first way is to provide roaming information for a local IPDC operator having a roaming partner among local IPDC operators. In the second way, a terminal transmits a query message for requesting transmission of information on a particular local IPDC operator, and receives information on the particular local IPDC operator in response thereto. The third way is to provide the terminal with type information of an ESG; an access type of which is classified according to provision of a roaming service. The roaming information, the information on the particular local IPDC operator and the type information of the ESG, which are provided to the terminal from the mobile broadcasting system, can be provided in an ESG bootstrap level.
Abstract:
A handover method and apparatus in a digital multimedia broadcasting (DMB) system that transmits/receives broadcast data through a frame group using different frequencies. A handover method includes receiving a first frame group header at a serving frequency, and receiving a burst of the desired service at the serving frequency according to a burst arrival time; calculating a first relative start time of a next frame group header; turning power off until a current time arrives at a next header arrival time; receiving a second frame group header at a searching frequency, and acquiring service information of the searching frequency necessary for handover to the searching frequency; returning to the serving frequency and turning the power off; and comparing signal power/quality of the listened frequencies with each other to select a best frequency, and switching to the selected frequency using the acquired corresponding service information.
Abstract:
A system and method for transmitting broadcast service data in a digital broadcasting system. The method includes setting a flag indicating a service area representative of coverage where broadcast service data is provided, for each broadcast service; and transmitting broadcast service information including the flag and a Transport Stream (TS) including the broadcast service data.
Abstract:
Apparatuses and methods for handover or roaming during a file download or streaming. A streaming roaming method in a Convergence of Broadcast and Mobile Services (CBMS) system includes generating a Session Description Protocol (SDP), a fragment, or a notification message indicating streaming roaming or handover information, and transmitting the SDP, the fragment, or the notification message to a terminal.
Abstract translation:在文件下载或流传输期间切换或漫游的设备和方法。 广播和移动业务(Convergence of Broadcast And Mobile Services,CBMS)系统中的流漫游方法包括生成指示流漫游或切换信息的会话描述协议(SDP),片段或通知消息,以及发送SDP,片段或 向终端发送通知消息。
Abstract:
A method of providing discovery information of an Electronic Service Guide (ESG) bootstrap entry point is provided. The method includes listing at least one piece of ESG bootstrap characteristic information for an ESG bootstrap proper for a status of a terminal, creating a Management Object (MO), which connects the ESG bootstrap entry point with said at least one piece of ESG bootstrap characteristic information and transmitting the created MO to the terminal through an interactive channel.
Abstract:
A method and apparatus for supporting mobility in a mobile broadcasting system in which Electronic Service Guide (ESG) discovery is required. The mobility support is classified into three ways according to three different aspects. The first way is to provide roaming information for a local IPDC operator having a roaming partner among local IPDC operators. In the second way, a terminal transmits a query message for requesting transmission of information on a particular local IPDC operator, and receives information on the particular local IPDC operator in response thereto. The third way is to provide the terminal with type information of an ESG; an access type of which is classified according to provision of a roaming service. The roaming information, the information on the particular local IPDC operator and the type information of the ESG, which are provided to the terminal from the mobile broadcasting system, can be provided in an ESG bootstrap level.
Abstract:
A method for transmitting an Electronic Service Guide (ESG) in a Convergence of Broadcasting and Mobile Service (CBMS) system is provided. A delivery path of ESG data is parsed. A first information element indicating transmission of a broadcast ESG when the ESG data can be delivered over a broadcast network is set. A second information element indicating transmission of a Point-to-Point (PTP) ESG for a terminal or a terminal group when the ESG data can be delivered over an interactive network in a PTP bearer is set. ESG delivery information is transmitted including at least one of the first and second information elements, to at least one terminal over at least one ESG bootstrap session for carrying information necessary for transmission of the ESG data. The broadcast ESG and the PTP ESG are transmitted to the at least one terminal over at least one delivery path out of the broadcast network and the interactive network.
Abstract:
Provided are a method and apparatus for indicating service variation in a Convergence of Broadcasting and Mobile Service (CBMS) system. A network entity aggregates information about a first service that can be provided by a current network and information about a second service of associated another network in order to generate service variation information indicating whether at least one of a language, a subtitle, and a camera angle of the second service is changed when compared to the first service, and transmits the service variation information to a terminal in the current network over a broadcasting network or an interactive network. The terminal can determine whether to receive the second service continuously from the first service from the other network using the service variation information.
Abstract:
An apparatus and method for transmitting and receiving broadcasting data in a DMB system are provided to reduce power consumption and implement smooth and seamless service handover. A frame group is configured so as to include information about services included in the frame group and information indicating the relative start times of the services.
Abstract:
A method and apparatus for sending a broadcast service in a digital broadcasting system. The method includes assigning a same Internet Protocol (IP) address for a common broadcast service when the common broadcast service is provided in at least two IP platforms, each of the at least two IP platforms providing a broadcast service to a terminal; delivering the common broadcast service using the same IP address; and delivering related information relevant to the common broadcast service.