A frame number is assigned to the data payload frame, wherein the frame number includes a generating time of the data payload frame.

In one embodiment, the first frame of video data is a frame of pixel data that was encoded prior to the second frame.

First, the system provides at least one image-dependent data frame (70) including pixel data (72) and a data frame time (74).

The MPT frame comprises a data frame to hold data and header information.

A frame generation unit (128) generates a test frame which is a data frame segmented into a plurality of data blocks.

The data unit includes at least one data frame.

The first frame may also be a frame to be displayed prior to the second frame of video data.

The gateway determines whether a frame received from the node is the control frame or the data frame, forwards the control frame to the controller, and forwards the data frame to the network.

The gateway determines whether a frame received from a source communication device is the control frame or the data frame, forwards the control frame to the controller, and forwards the data frame to the network.

The data frame may also include a frame synchronization field (110).

A data frame is generated that comprises messages from the data store that are responsive to the received data frame request, the data frame having a format that is readable by a character editor.

Next, data is encapsulated in a data frame with an indicator in the data frame that it comprises data.

The frame sets the duration for a frame exchange - consisting of a data frame, followed by acknowledgement frame - in which the data frame is transmitted using an enhanced modulation format.

The data frame conforms with a return channel frame format.

This delayed acknowledgement response frame (1135) includes frame identifiers for the first (n-1) data frames (811-814), but does not include a frame identifier for the last data frame (815).