Abstract:
A method of transmitting packets wherein said packets are comprised in a plurality of flows, the flows comprising flow characteristics controlling admission of incoming flows. A plurality of admitted incoming flows with the same class of service are inserted into a queue. A committed information rate value corresponding to said queue and a bandwidth available for transmission of said queue according to the identified committed information rate value are identified. An order for transmission for the queues is established based on the class of service of the queue and the identified bandwidth. A plurality of cells of the same size are generated from a plurality of frames and the cells are distributed between a plurality of individual transmission channels according to the ordered defined for transmission. A transmitter equipment and a receiver equipment are also disclosed.
Abstract:
System and method for improving the use of radio spectrum in transmission of data, according to which the payload information of any known line interface is divided into a plurality of data portions of smaller which are then grouped into packets so as to be subsequently radio transmitted. For transmission of such packets, suitable radio channels are selected. The invention also relates to reception of such radio channels having such packets incorporated therein, wherein the received packets are then transformed into payload information for inputting into corresponding line interfaces.
Abstract:
It is disclosed a network element for a communication network configured to synchronize its local clock to a reference clock signal. The network element comprises: a main board comprising an internal module configured to support an internal synchronization transport protocol, and a connector connected to the internal module; and a pluggable module configured to be removably connected to the connector. The pluggable module is configured to, when connected to the connector: exchange external synchronization information with a further network element, the external synchronization information being formatted according to an external synchronization transport protocol different from the internal synchronization transport protocol; exchange with the internal module internal synchronization information formatted according to the internal synchronization transport protocol; and interface the internal synchronization transport protocol and the external synchronization transport protocol.
Abstract:
System and method for passing a constant bit rate signal through an Ethernet interface (TX, RX) wherein an original clock rate (102) of the constant bit rate signal (1) is used for transmitting Ethernet packets (2, 3, 4) containing fragments (20, 30, 40) of the constant bit rate signal (1). At reception the original clock rate is recovered, the packets received are broken and the fragments of the constant bit rate signal are recovered and stored in a storage means. The fragments are then read from the storage using the recovered clock rate thus recovering the original rate of constant bit rate signal.
Abstract:
It is disclosed a method for transmitting a service clock from a base station controller to a base station of a mobile communication system through a synchronous, packet-switched backhauling network synchronized to a network clock. A master synchronization interworking device interfacing base station controller and backhauling network receives the service clock from the base station controller, generates a timestamp indicative of a difference between network clock and service clock, and transmits the timestamp through the backhauling network. A slave synchronization interworking device interfacing backhauling network and base station receives the timestamp, recovers the service clock based on received timestamp and network clock, and forwards the recovered service clock to the base station. This allows synchronizing the base station to a service clock which is in principle independent of the network clock. Several operators may accordingly share the backhauling network, each one preserving the ability to use an independent service clock.