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GSE-only signalling requirement | Prospective methods |
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IP interoperability | Encapsulation of an IP packet as GSE payload. |
Any of the ND&S methods described in Section 5.2. |
Any unidirectional transport protocol. |
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Separation of network and content signalling | Any methods for GSE signalling identification described in Section 5.1 enabling filtering at GS-L1/L2. |
Transport protocol with a payload type field. |
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Extensible syntax | XML syntax. |
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Similar, or higher, bandwidth efficiency to that of current TS signalling | GSE extension headers to indicate compression. |
IP/UDP header compression. |
XML compression. |
New optimised lightweight transport protocol. |
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Coexistence with MPEG-2 TS services | Encapsulation of TS packet over GSE. |
Encapsulation of TS packet over UDP/IP/GSE. |
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Signalling security | GSE security extensions. |
Transport protocol with a field to indicate payload encryption. |
XML encryption. |
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QoS and timing reconstruction | Timestamps in RTP extension header. |
QoS descriptors in XML. |
Signalling repetition rates. |
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Enable service discovery and service description metadata | Any of the ND&S methods described in Section 5.2. |
XML syntax. |
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Provides easy identification of signalling in GSE streams | Any methods for GSE signalling identification described in Section 5.1 enabling filtering at GS-L1/L2. |
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