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US 9,432,203 B2Granted
Method and apparatus for dynamically configuring multicast and broadcast service (MBS) zone in wireless communication system
AssigneeElectronics and Telecommunications Research Institute
InventorDae-Geun Park
Life of this patent
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Abstract
Provided are a method and apparatus for configuring a Multicast and Broadcast Service (MBS) zone dynamically in a mobile communication environment. According to an example, there is provided a method of seamlessly changing base stations configuring a MBS zone whenever one or more mobile terminals configuring the MBS zone move or whenever a predetermined time period has elapsed to thereby provide a MBS with excellent quality while saving radio resources.
Claims9
A method in which a mobile terminal configures a broadcast zone to provide a broadcast service, the method comprising:
- calculating quality values of signals received from a plurality of base stations by a channel information collector;
- and
- selecting by a Multicast Broadcast Service (MBS) zone configuration unit one or more base stations that are to configure a multicast and broadcast service (MBS) zone, from among the plurality of base stations, based on the quality values of the received signals,
- receiving information about member base stations that participate in a MBS zone, MBS program information and MBS channel information from a MBS server and a gateway;
- configuring a MBS information table including the information about the member base stations and the MBS program information by a terminal MBS information table configuration unit,
- comparing information about the member base stations belonging to a newly configured MBS zone to information about the member base stations belonging to a previously configured MBS zone by the MBS zone configuration unit, and
- transmitting, if the newly configured MBS zone includes at least one member base station that is identical to none of the member base stations of the previously configured MBS zone, a MBS zone configuration request message to the serving base station.
4 more elements
A broadcast service system comprising:
- a terminal configured to select, when the terminal moves or when a predetermined time period elapses, one or more base stations that are to configure a Multicast Broadcast Service (MBS) zone from among a plurality of base stations, using quality values of signals received from the plurality of base stations;
- a terminal MBS information table configuration unit configured to receive information about member base stations that participate in a MBS zone, to receive MBS program information and MBS channel information from a MBS server and a gateway, and configure an MBS information table including the information about the member base stations and the MBS program information;
- an MBS zone configuration unit is configured to compare the information about the member base stations belonging to a newly configured MBS zone to information about the member base stations belonging to a previously configured MBS zone and transmit, if the newly configured MBS zone includes at least one member base station that is identical to none of the member base stations of the previously configured MBS zone, a MBS zone configuration request message to the serving base station;
- a base station configured to relay data transmission with the terminal and to withdraw from or subscribe in the MBS zone according to whether or not the corresponding base station is selected in the selecting of the base stations;
- and
- a gateway configured to establish a data transfer path with the base stations configuring the MBS zone.
3 more elements
A mobile terminal comprising:
- a channel information collector configured to calculate quality values of signals received from a plurality of base stations, and to collect information about channels having signal quality values that satisfy a predetermined condition;
- and
- a Multicast Broadcast Service (MBS) zone configuration unit configured to select one or more base stations that are to configure a MBS zone from among the plurality of base stations, based on the quality values of the received signals, and
- compare information about member base stations belonging to a newly configured MBS zone to information about member base stations belonging to a previously configured MBS zone, and transmits, if the newly configured MBS zone includes at least one member base station that is identical to none of the member base stations of the previously configured MBS zone, a MBS zone configuration request message to the serving base station;
- and
- a terminal MBS information table configuration unit configured to receive information about member base stations that participate in a MBS zone, to receive MBS program information and MBS channel information from a MBS server and a gateway, and to configure an MBS information table including the information about the member base stations and MBS program information.
3 more elements
Dependencies are inferred from the claim text.