Communication network using different transmission properties
AssigneeKoninklijke Philips Electronics N.V.
InventorCarel J. L. Van Driel
Life of this patent
Estimating the term…
Abstract
In an ATM communication network ATM cells to be transmitted from a terminal device (46) to a network control node (12) are transmitted according to certain transmission properties also called Quality of Service. In order to determine the Quality of Service with which a given packet has to be transmitted, the Quality of Service is determined from address information in the VPI/VCI identifier in the header of the ATM cell. In an embodiment of the invention a network termination (32) comprises address translation means (76) for translating the address present in ATM cells received from the terminal device (46) into addresses indicating the Quality of Service.
Claims5
Communication network comprising:
- a plurality of secondary nodes being coupled to at least one primary node,
- the secondary nodes being arranged for transmitting packets to the primary node according to a plurality of predetermined transmission properties,
- characterized in that
- the secondary node comprises:
- a first address translator that is configured to translate initial address information carried by packets received from at least one terminal device into address information in headers of the packets comprising information about transmission properties to be used for transmitting the associated packets,
- a selector that is configured to select packets according to the information about the transmission properties contained in the address information in their header,
- a transmitter that is configured to transmit each of the packets with one or more transmission properties of the plurality of predetermined transmission properties corresponding to the selection performed by the selector, and
- the network further includes
- a second address translator that is configured to translate the address information in the packets received from the secondary node back into the initial address information present in the packets received by the secondary nodes from the terminal device.
Node for use in a communication network,
- the node being arranged for transmitting packets according to a plurality of predetermined transmission properties to a primary node,
- characterized in that
- the secondary node comprises
- selection means for selecting packets according to address information in their header,
- transmission means that are arranged for transmission of the packets with one or more transmission properties of the plurality of transmission properties dependent on the selection performed by the selection means, and
- address translation means for translating initial address information carried by packets received from at least one terminal device into the address information carrying information about the transmission properties to be used for transmitting the associated packets,
- wherein
- the primary node is configured to translate the address information back into the initial address information present in the packets received by the secondary nodes.
Communication method comprising:
- translating initial address information carried by packets received from at least one terminal device into address information in the header of the packets, the address information comprising information about transmission properties to be used for transmission of the associated packets,
- selecting packets according to the information about the transmission properties contained in the address information in their header,
- transmitting the packets from a node with one or more transmission properties of the plurality of predetermined transmission properties corresponding to the selection performed,
- receiving the packets at an other node, and
- translating the address information from the packets that are received at the other node back into the initial address information present in the packets from the at least one terminal device.
Dependencies are inferred from the claim text.