Method of transmitting digital services over a network and device implementing the method

Active Publication Date: 2016-07-05
INTERDIGITAL CE PATENT HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0006]The invention provides a method of transmitting digital services over a bidirectional data network and, more specifically, the recognition of the services offered on the network by a receiver. This method, used in the DVB cont

Problems solved by technology

Since the adoption of this new signalling system means that new tools have to be developed in parallel with the existing system, operators have to make an investment and take a risk.
Furthermore, terminals do not currently incorporate the tools need

Method used

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  • Method of transmitting digital services over a network and device implementing the method
  • Method of transmitting digital services over a network and device implementing the method
  • Method of transmitting digital services over a network and device implementing the method

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Embodiment Construction

[0029]The connection to a server on an IP type network can be achieved using an IP multicast protocol. One example of such a protocol is the IGMP (Internet Gateway Management Protocol) defined in RFC 2236. In that protocol, a multicast server has an associated multicast address. This address has the format of an IP address, in a domain reserved for this purpose, but does not correspond to the IP address of a machine that can be accessed on the network. A receiver wishing to connect to this server will send a request over the network containing this multicast IP address. This request will be relayed throughout the network until it reaches the server responsible for this broadcast, which will then register the receiver as a broadcast client. The routers on the path between the server and the receiver will then be able to relay the IP packets that make up the stream to the terminals subscribing to the broadcast. By knowing the IP address of the server machine in addition to the multicast

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Abstract

Within the context of the broadcasting of DVB services over an IP network, the trend is to separate the signalling information describing the network and the services offered from the services themselves. The signalling is made available to the terminals via XML files available on HTTP servers. In contrast to this approach, the invention consists of a method of recognition, by a receiver connected to a bidirectional network, of digital services on the bidirectional network, which comprises a step in which the receiver connects to a first stream, a step in which the receiver extracts from said stream information on the location on the network, on the one hand, of streams conveying the content of these services and, on the other hand, of separate streams conveying information describing these services, a step in which the receiver connects to at least some of the streams conveying service description information to obtain information on these services and a step in which the receiver uses this information to construct a list, possibly unitary, of the services available on the network.

Description

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Claims

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Application Information

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Owner INTERDIGITAL CE PATENT HLDG
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