Transmission of data using a data carousel
First Claim
1. A method of transmitting data in a digital broadband communication network comprising:
- encapsulating the data according to a first protocol to produce a data packet;
mapping the data packet onto a transport packet;
encoding filtering information in a filtering field included in the transport packet; and
repeatedly transmitting the transport packet using a data carousel mechanism.
1 Assignment
0 Petitions
Accused Products
Abstract
A method of transmitting data, such as an MMS message 13, via a DVB network 4 comprises encapsulating the data 13, mapping the resulting data packet onto a transport packet 7, including filtering information 14 and/or payload scrambling control mode information 12 relating to scrambling of the data packet in the transport packet 7 and transmitting the transport packet 7 using a data carousel to one or more receiving devices STB1, STB2, MS3. The inclusion of filtering information 14 allows the use of hardware filters 18 for screening data via a data carousel at a receiving device STB1, while the inclusion of payload scrambling control mode information 12 allows any encryption of the transport packet 7 to be limited to the data packet, so that it is not necessary for the receiving device STB1, STB2, MS3 to decrypt the transport packet 7 before filtering. The filtering information 14 may be part or whole of an address associated with the receiving device STB1, e.g. an IP or MAC address.
18 Citations
47 Claims
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1. A method of transmitting data in a digital broadband communication network comprising:
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encapsulating the data according to a first protocol to produce a data packet;
mapping the data packet onto a transport packet;
encoding filtering information in a filtering field included in the transport packet; and
repeatedly transmitting the transport packet using a data carousel mechanism. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An apparatus comprising a server configured to:
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receive data from a source;
encapsulate the data to produce a data packet according to a first protocol;
map the data packet onto a transport packet;
encode filtering information in a filtering field included in the transport packet; and
repeatedly transmit the transport packet using a DVB data carousel mechanism. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method of forming a transport packet comprising steps of:
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forming a header containing an identifier relating to a data carousel;
forming a payload comprising data to be transmitted to one or more users of one or more receiving devices; and
forming a filtering field containing filtering information relating to said one or more receiving devices. - View Dependent Claims (24, 25, 26)
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27. A method of transmitting data in a digital broadband communication network comprising:
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encapsulating the data according to a first protocol to produce a data packet;
mapping the data packet onto a transport packet;
incorporating within the transport packet payload scrambling control mode information relating to an encryption status of the data packet mapped onto said transport packet; and
repeatedly transmitting the transport packet using a data carousel mechanism. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35)
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36. An apparatus comprising a server configured to:
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receive data from a source;
encapsulate the data according to a first protocol to produce a data packet;
map the data packet onto a transport packet;
incorporate within the transport packet payload scrambling control mode information relating to an encryption status of the data packet mapped onto said transport packet; and
repeatedly transmit the transport packet using a data carousel mechanism. - View Dependent Claims (37, 38, 39, 40, 41, 42, 43, 44)
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45. A method of forming a transport packet comprising the steps of:
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forming a header containing an identifier relating to a digital data carousel;
forming a payload comprising data to be transmitted to one or more users of one or more receiving devices; and
forming a payload scrambling control mode field containing scrambling control mode information, said scrambling control mode information being unrelated to an encryption status of said header. - View Dependent Claims (46, 47)
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Specification