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The [[Communications protocol|protocol]] [[specification]] has been published as [[ETSI]] TS
102 606
Broadcasting (DVB); Generic Stream Encapsulation (GSE)
Protocol"</ref>
document has been published as [[ETSI]] TS 102 771.<ref name="ts102771">ETSI TS 102 771: "Digital Video Broadcasting (DVB); Generic Stream Encapsulation (GSE) implementation guidelines"</ref>
IP datagrams, Ethernet Frames, or other network layer packets are encapsulated in one or more GSE Packets. The encapsulation process adds control information such as the network protocol type and address label, and provides an overall integrity check when needed.
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GSE Packets may be sent in different Base Band frames, not necessarily consecutive or with the same transmission parameters (modulation format, coding rate). No constraint on the GSE Packet position within the Base Band frame is assumed. However, GSE Packets may not be reordered between the encapsulator and the de-encapsulator. In general, a Base Band frame can contain more than a single GSE Packet. Base Band frames may have fixed, or variable length.
GSE does not provide a mechanism for integrity check of single GSE Packet. A [[CRC-32]] is only appended to the last fragment of a fragmented payload to verify the correctness of the reassembly operation. GSE relies on the physical layer being able to ensure the required error detection and/or correction probability
=== GSE Header ===
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== GSE Implementations ==
=== Products Supporting GSE ===
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* [http://www.dvb.org/technology/fact_sheets/DVB-GSE-Fact-Sheet.0709.pdf DVB Fact Sheet on GSE]
* [http://telecom.esa.int/telecom/www/object/index.cfm?fobjectid=30265 GSE project home page at [[ESA]]]
[[Category:Articles created via the Article Wizard]]
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