Abstract:
A demultiplexing apparatus, a multiplexing apparatus, and a multi-channel transmission and reception method using the same are provided. The demultiplexing apparatus includes a broadcasting data reception unit for separating a broadcasting data stream into N input packets, an output packet generation unit for generating (N+1) output packets by connecting a pre-header, including a field for multi-channel transmission, with each of the N input packets, and a packet distribution unit for distributing the (N+1) output packets over at least two channels. The multiplexing apparatus includes a packet restoration unit for detecting first field information for restoration and second field information for synchronization from each of pre-headers included in (N+1) output packets received through at least two channels and generating N restoration packets using the first field information and an output synchronization unit for performing output timing synchronization between the N restoration packets using the second field information.
Abstract:
Disclosed is a method of receiving, by a terminal, an additional network service provided through a temporary base station disposed temporarily or locally in order to transfer disaster information, including: receiving information on the additional network through an existing network service provided by a base station; verifying whether the terminal is handed over to the additional network based on the information on the additional network; and receiving the additional network service through the additional network. According to the present invention, even when a communication service disability occurs due to a flood of telephone traffic in an area where a disaster situation or an event occurs, a communication service can be provided through the additional network in terms of the communication service and a broadcasting channel that provides information specific to the disaster situation or event can be temporarily or locally additionally provided.
Abstract:
Provided is a broadcasting receiver including a broadcasting signal receiving unit to receive a broadcasting signal via a broadcasting network, a viewing possibility determining unit to determine whether it is possible for a viewer to view the broadcasting signal, a multicasting signal receiving unit to receive a multicasting signal via a wireless communication network, a switching and combining unit to combine or switch the received broadcasting signal and the multicasting signal, and a controlling unit to request the multicasting signal transmitting unit to multicast the multicasting signal based on the determination result, to request the multicasting signal receiving unit to receive the multicasting signal, and to control the switching and combining unit depending on whether the multicasting signal is received.