US 2004/0177169 A1Published application

Transmission method

AssigneeEricsson Inc.

InventorsGhani Abdul Muttalib Abbas, John David Ash

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Abstract

A transmission method in which a first signal frame, carrying a payload in a first part of the signal frame and second information in a second part of the signal frame, is transmitted intact between a signal source and a signal destination by copying the second information into the first part of at least one additional signal frame, transmitting both frames between the signal source and the signal destination and, at the destination, reconstructing the first signal frame by retrieving its original second information from the first part or parts of the additional signal frame or frames and placing the retrieved second information in the second part of the first signal frame. A typical application of the transmission method lies in its use in an SDH transmission system.

Claims18

Dependent claims

A transmission method for a first signal element which includes first information in a first part of the signal element and associated second information in a second part of the signal element for the management of the signal element as it is moved between a signal source and a signal destination, in a transmission system which may change at least some of the second information in the second part of the signal element as the signal element is moved between the signal source and the signal destination, including the steps of:

providing the second information also in the first part of at least one additional signal element,
transmitting the first signal element and the additional signal element or the additional signal elements from a signal source to a signal destination and,
at the signal destination, providing a new signal element in which the first information in its first part is the same as the first information in the first part of the first signal element and the information in its second part is the same as the second information in the first part of the additional signal element or elements, thereby providing the first signal element in substantially its original form at the signal destination.

Dependencies are inferred from the claim text.