US 2020/0267448 A1 · ENHANCED MULTICAST NETWORK COMMUNICATIONS

Abstract

Methods, systems, apparatus, including computer programs encoded on computer storage media, for generating and routing modified multimedia data frames. In one aspect, the method includes maintaining, by a first network node, channel membership data that includes data indicating, for each channel of a plurality of channels, leaf node membership for a plurality of channels, and for each channel of the plurality of channels: determining, based on the channel membership data, the leaf nodes that are subscribed to access the channel, generating, based on the leaf nodes that are subscribed to access the channel, a modified multimedia data frame for the channel that includes (i) a hub node identifier, (ii) data that describes a destination address of each leaf node that is subscribed to access the channel and (iii) a payload, and transmitting, by the first network node, the generated modified multimedia data frame to a second network node.

Claims18

Dependent claims

A method comprising:

determining, by a data processing apparatus, one or more leaf nodes subscribed to access a given channel based on channel membership data including leaf node membership for a plurality of channels;
generating, by the data processing apparatus, based on the one or more leaf nodes subscribed to access the given channel, a modified multimedia data frame for the given channel, the modified multimedia data frame including:
(i) a hub node identifier identifying a hub node that serves at least one of the one or more leaf nodes subscribed to access the given channel,
(ii) address data describing a destination address of each leaf node served by the hub node and subscribed to access the given channel, wherein at least a portion of the address data describes the destination address of each leaf node according to a bitmap in which each bit in the bit map identities a particular leaf node, the address data being an encoded bitmap of destination addresses;
and
(iii) a payload;
and
transmitting, by the data processing apparatus, the generated modified multimedia data frame from a first network node to a second network node.

5 more elements

A system comprising:

one or more data processing apparatuses;
and
one or more storage devices in communication with the one or more data processing apparatuses, the one or more storage devices storing instructions that when executed on the one or more data processing apparatuses cause the one or more data processing apparatuses to perform operations comprising:
determining one or more leaf nodes subscribed to access a given channel based on channel membership data including leaf node membership for a plurality of channels;
generating based on the one or more leaf nodes subscribed to access the given channel, a modified multimedia data frame for the given channel, the modified multimedia data frame including:
(i) a hub node identifier identifying a hub node that serves at least one of the one or more leaf nodes subscribed to access the given channel;
(ii) address data describing a destination address of each leaf node served by the hub node and subscribed to access the given channel, wherein at least a portion of the address data describes the destination address of each leaf node according to a bitmap in which each bit in the bit map identifies a particular leaf node, the address data being an encoded bitmap of destination addresses;
and
(iii) a payload;
and
transmitting the generated modified multimedia data frame from a first network node to a second network node.

8 more elements

A non-transitory computer-readable storage device having stored thereon instructions, which, when executed by a data processing apparatus, cause the data processing apparatus to perform operations comprising:

determining one or more leaf nodes subscribed to access a given channel based on channel membership data including leaf node membership for a plurality of channels;
generating based on the one or more leaf nodes subscribed to access the given channel, a modified multimedia data frame for the given channel, the modified multimedia data frame including:
(i) a hub node identifier identifying a hub node that serves at least one of the one or more leaf nodes subscribed to access the given channel,
(ii) address data describing a destination address of each leaf node served by the hub node and subscribed to access the given channel, wherein at least a portion of the address data describes the destination address of each leaf node according to a bitmap in which each bit in the bit map identities a particular leaf node, the address data being an encoded bitmap of destination addresses;
and
(iii) a payload;
and
transmitting the generated modified multimedia data frame from a first network node to a second network node.

5 more elements

Dependencies are inferred from the claim text.

Enhanced multicast network communications

Life of this patent

Enhanced multicast network communications

Life of this patent

Abstract

Claims18