Abstract: For routing a data unit through a chain of nodes, the nodes are assigned addresses that are increasing in one direction of appearance of the nodes in the chain. For routing the data unit, the receiving node first verifies if the destination address of the data unit corresponds with the address of its first hop neighbor or its second hop neighbor, and the node routes the data unit directly to its first hop neighbor or its second hop neighbor if this is the case. Otherwise, the node determines the difference between the destination address of the data unit and its own address or the difference between the source and destination address of the data unit, selects a routing direction depending on the sign of this difference, and selects a first hop link when the difference is in magnitude below a threshold value or a second hop link when the difference is above the threshold value.

Abstract: For routing a data unit through a chain of nodes, the nodes are assigned addresses that are increasing in one direction of appearance of the nodes in the chain. For routing the data unit, the receiving node first verifies if the destination address of the data unit corresponds with the address of its first hop neighbour or its second hop neighbour, and the node routes the data unit directly to its first hop neighbour or its second hop neighbour if this is the case. Otherwise, the node determines the difference between the destination address of the data unit and its own address or the difference between the source and destination address of the data unit, selects a routing direction depending on the sign of this difference, and selects a first hop link when the difference is in magnitude below a threshold value or a second hop link when the difference is above the threshold value.

Abstract: A communication device for W-CDMA signal transmission and reception has a W-CDMA transmitter having at least one of a first RAM and first registers, wherein the transmitter is configured to operate in accordance with first parameters. Further, the communication device has a W-CDMA receiver having at least one of a second RAM and second registers, wherein the receiver is configured to operate in accordance with second parameters, and signal acquisition component. A processor is in data communication with the W-CDMA transmitter, the W-CDMA receiver and the signal acquisition component, and configured to provide for software configuration of the first and second parameters.

Abstract: A communication device for W-CDMA signal transmission and reception includes a W-CDMA transmitter having at least one of a RAM and registers, a W-CDMA receiver having at least one of a RAM and registers, and a signal acquisition circuit. The communication device is software reconfigurable and further includes a digital circuit for phase unbalance precompensation in the W-CDMA transmitter. The digital circuit includes an input register holding a compensation angle and a section performing arithmetic calculations to acquire a change of an I, Q angle by the compensation angle. A method of operating a W-CDMA communication device includes the acts of configuring the device for a specific use, and performing at least one of transmitting, receiving and acquiring waveform signals. The configuring is preferably done by a processor.

Abstract: A method to preserve the ordering of data packets of a same flow (P1-P4, P7, P8) passing either through a control plane (CP) or through a data plane (DP) of a telecommunication network element. The method comprises the step of, when the control plane starts processing the new flow, the control plane controls the data plane to latch any other packet belonging to this flow by sending a first control packet (C1) to said data plane. When the processing is completed, the control plane controls the data plane to release the latched packets by sending a second control packet (C3) to said data plane. The present method is particularly applicable to Ethernet frames, where it is also not allowed to reorder frames belonging to a same ‘Ethernet flow’.

Abstract: Network units (1) for exchanging signals (20-70) comprising information (50) at layers (500) higher than internet protocol layers (300) comprise detector systems (2,3) arranged to detect fields of the information (50). To improve the detections of a status of priority, of fragmentation and/or of aggregation, the signal (20-70) is provided with further information (60) at further layers (600) higher than the layers (500) and the detector systems (2,3) are arranged to, in response to detections of the fields of the information (50), detect further fields of the further information (60). The further layers (600) comprise codec independent layers and yet further layers (700) higher than the further layers (600) comprises codec dependent layers. The layers (500) comprise real time protocol layers, the further layers (600) comprise generic real time protocol payload formats for transport abstractions and the yet further layers (700) comprise real time protocol payload formats for specific codec's.

Abstract: An access node (1) that is preferably a Flow-Aware Ethernet DSLAM adapted to transmit Ethernet data frames between subscribers (2) and an aggregation network (3). The access node comprises a first memory (4) for storing classification rules and a second memory (6) for storing flow rules. These rules are applied by a classification agent (5) and by a service agent (7) to information extracted from incoming data frames in order to infer flow awareness information of outgoing frames corresponding to these incoming data frame. In this way, the subscriber access network evolves to a multi-service architecture by replacing ATM with Ethernet for cost reasons. The concept of “flow awareness” is applied to the present access node. With respect to known tunnel-based Ethernet DSLAMs, the present access node removes all dependency on correct encapsulation or labeling at the customer side and at the service provider side.

Abstract: The present invention relates to a method for encoding a multimedia content, and comprising the steps of: encoding the multimedia content into hierarchical elementary streams, parsing the elementary streams into data packets for further transmission through a network towards a decoding unit, receiving a request whereby the decoding unit requests delivery of at least one required elementary stream. A method according to the invention further comprises the steps of: discriminating within the data packets between first data packets that compose the at least one required elementary stream, and second data packets that do not, assigning one first network priority to the first data packets, and assigning at least one second network priority, lower than the first network priority, to the second data packets, transmitting the first data packets and the second data packets towards the decoding unit. The present invention also relates to an encoding unit implementing a method according to the invention.

Abstract: The present invention relates to a multicast traffic control unit (21) for use in a data communication system (1) operable to transmit multicast traffic, and adapted: to receive membership reports (41 to 45) from at least one station (11 to 13), whereby memberships of multicast groups are notified, to report at least one membership (41, 44) out of said memberships to a multicast router (31) of the data communication system. A multicast traffic control unit according to the invention is further adapted, before reporting the at least one membership to the multicast router: to estimate a total amount (X) of multicast traffic which the multicast router would supposedly forward towards the at least one station on account of the at least one membership, to select the at least one membership such that the so-estimated total amount does not exceed a configurable threshold (Xmax).

Abstract: The access multiplexer (DSLAM) according to the present invention incorporates a remote host-based intrusion detection system (RHIDS) to detect malicious activity on a large amount of access subscriber connected to the access multiplexer by remotely analyzing systems integrity and statistical behaviors of those access subscribers, and eventually also incorporates a network-based intrusion detection system (NIDS2) to detect malicious activity on all access subscribers (S21, S22 . . . S2N) connected to the access multiplexer by analyzing incoming and outgoing traffic for attack signature patterns.

Abstract: A communication device for W-CDMA signal transmission and reception has a W-CDMA transmitter having at least one of a first RAM and first registers, wherein the transmitter is configured to operate in accordance with first parameters. Further, the communication device has a W-CDMA receiver having at least one of a second RAM and second registers, wherein the receiver is configured to operate in accordance with second parameters, and signal acquisition component. A processor is in data communication with the W-CDMA transmitter, the W-CDMA receiver and the signal acquisition component, and configured to provide for software configuration of the first and second parameters.