METHOD OF ENCAPSULATING DATA IN DIGITAL SATELLITE COMMUNICATION SYSTEM, AND DATA TRANSMISSION APPARATUS THEREFOR
First Claim
1. An encapsulation method by which a Hub station transforms a packet data unit to be transmitted in a form of a baseband data packet, in a digital satellite communication system, the encapsulation method comprising:
- determining whether a time at which a reference time information packet has to be inserted into the packet data unit is arrived, in the digital satellite communication system; and
if the time at which the reference time information packet has to be inserted into the packet data unit is arrived, transforming the packet data unit in the form of a baseband data packet including the reference time information packet.
1 Assignment
0 Petitions
Accused Products
Abstract
Provided is a satellite network communication system based on Second Generation Digital Video Broad-casting via Satellite (DVB-S2). A method for encapsulating transmission data in a digital satellite communication system includes: determining whether a time at which a reference time information packet has to be inserted into a packet data unit is arrived, in the digital satellite communication system; and if the time at which the reference time information packet has to be inserted into the packet data unit is arrived, transforming the packet data unit in the form of a baseband data packet including the reference time information packet. Therefore, by allowing transmission of Network Clock Reference (NCR) information in a satellite communication environment based on Generic Steam Encapsulation (GSE), bidirectional satellite communications are possible.
-
Citations
15 Claims
-
1. An encapsulation method by which a Hub station transforms a packet data unit to be transmitted in a form of a baseband data packet, in a digital satellite communication system, the encapsulation method comprising:
-
determining whether a time at which a reference time information packet has to be inserted into the packet data unit is arrived, in the digital satellite communication system; and if the time at which the reference time information packet has to be inserted into the packet data unit is arrived, transforming the packet data unit in the form of a baseband data packet including the reference time information packet. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A data transmission apparatus included in a Hub station of a digital satellite communication system, comprising:
-
an encapsulator performing encapsulation by dividing a packet data unit that is to be transmitted into a plurality of variable-length packets and adding headers respectively to each variable length packet and a reference time information packet; and a packet former forming a baseband data packet by scheduling the encapsulated variable-length packets and the encapsulated reference time information packet. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
-
Specification