Abstract:
A device (10) having under-run management capabilities and to a method (200) for managing under-runs . The method (200) includes providing (230), to a memory unit, channel information from multiple channels; allocating (240) time slots for communication channel transmissions; the method is characterized by including: sending (250), during a time slot allocated for a transmission of channel information from an enabled communication channel, to the shift register channel information of an enabled communication channel, serially outputting the received channel information from the shift register towards a communication line while serially replacing (255) the outputted channel information by a predefined content such that the shift register stores a communication channel disable code when an under-run occurs; defining (260) a communication channel as a disabled communication channel once the under-run occurs; and transmitting (270), during a time slot allocated to a disabled communication channel, idle signals to the communication line.
Abstract:
Die vorliegende Erfindung betrifft ein Verfahren sowie ein Kompensationsmodul (MOD1) zur Phasenkompensation zwischen einem ersten Taktsignal (TS1) und einem zweiten Taktsignal (TS2), die dem Kompensationsmodul (MOD1, MOD2) übermittelt werden, das insbesondere ein Kompensationsmodul in einem Telekommunikationsnetz oder in einem Netzknoten eines Telekommunikationsnetzes ist. Dabei wird vorgeschlagen, dass das Kompensationsmodul (MOD1, MOD2) das mindestens eine erste Taktsignal (TS1) um eine vorbestimmte erste Verzögerungsdauer (VZ1) zu einem verzögerten ersten Taktsignal (TS1d) verzögert, dass das Kompensationsmodul (MOD1) das zweite Taktsignal (TS2) um eine vorbestimmte zweite Verzögerungsdauer (VZ2) zu einem verzögerten zweiten Taktsignal (TS2d) verzögert, und dass das Kompensationsmodul (MOD1) die zweite Verzögerungsdauer (VZ2) derart modifiziert, dass das verzögerte zweite Taktsignal (TS2d) an die Phase des verzögerten ersten Taktsignals (TS1d) angepasst ist.
Abstract:
Several rotator switch architectures are provided that enhance performance of a basic rotator switch. The rotator switches having double buffered tandem nodes, multiplexing two or more sources onto each tandem node, partitioning the rotator into two or more parallel space switches, two or more rotator planes multiplexing from/to source and destination nodes to provide data path redundancy, priority queueing on source nodes scheduled locally or globally, or redundancy in the schedulers are shown.
Abstract:
A packet switching node is coupled by links to other nodes of a network, and receives and assembles packets belonging to a specified packet flow, into bursts of packets with a burst control packet indicating a sequence of the burst in the flow. The node determines whether to distribute the flow across several links. If so, the bursts are then forwarded for switching to the output ports of the selected links. Distributing the flow over multiple links can enable more flexible and efficient filling of allocated bandwidth on links, as traffic increases. To reduce the risk of losing the order of packets the sequence of the bursts is indicated for use in reordering at intermediate nodes during transmission through the network.
Abstract:
The invention relates to a method for ramping up an interface that is arranged between two elements in a telecommunication network comprising a number of communication channels that are used to exchange communication data in order to manage said interface. At least one of the channels is allocated to a first protection group and communication data is exchanged via communication pathways, whereby a number of predetermined communication pathways are grouped together to form a first communication pathway group assigned to the first protection group and a primary communication path is set up in the communication channel of the first protection group. The communication path group of the first protection group is then assigned to the communication channel containing the first communication path on the basis of protective switching messages exchanged via the primary communication path and the communication paths of the first protection group are released for the exchange of communication data.
Abstract:
Several rotator switch architectures are provided that enhance performance of a basic rotator switch. The rotator switches having double buffered tandem nodes, multiplexing two or more sources onto each tandem node, partitioning the rotator into two or more parallel space switches, two or more rotator planes multiplexing from/to source and destination nodes to provide data path redundancy, priority queueing on source nodes scheduled locally or globally, or redundancy in the schedulers are shown.
Abstract:
The invention relates to the preservation of sequence integrity (TSSI) and frame integrity (TSFI) in switching wideband connections through a switch or a switch stage. The speech memory (17) in a switch stage (6.n) in the switch is extended to include storage positions (44.n) that in number correspond to the number of time slots in two frames. These storage positions are arranged into two parts (48, 49) of the same size in the speech memory (17). Furthermore, there is provided a delay control unit (26) in the time switch stage (6.n) for generating delay information based on control information in the control memory (23) of the switch stage (6.n) and a determined part of the counter information from a time slot counter circuit (28). This delay information controls, for each time slot, to/from (depending on if the speech memory (17) is arranged in an outgoing stage or an incoming stage) which one of the first (48) and second part (49) of the speech memory (17) that user data is switched.
Abstract:
The invention relates to a method for ramping up an interface that is arranged between two elements in a telecommunication network comprising a number of communication channels that are used to exchange communication data in order to manage said interface. At least one of the channels is allocated to a first protection group and communication data is exchanged via communication pathways, whereby a number of predetermined communication pathways are grouped together to form a first communication pathway group assigned to the first protection group and a primary communication path is set up in the communication channel of the first protection group. The communication path group of the first protection group is then assigned to the communication channel containing the first communication path on the basis of protective switching messages exchanged via the primary communication path and the communication paths of the first protection group are released for the exchange of communication data.
Abstract:
Die vorliegende Erfindung betrifft ein Verfahren sowie ein Kompensationsmodul (MOD1) zur Phasenkompensation zwischen einem ersten Taktsignal (TS1) und einem zweiten Taktsignal (TS2), die dem Kompensationsmodul (MOD1, MOD2) übermittelt werden, das insbesondere ein Kompensationsmodul in einem Telekommunikationsnetz oder in einem Netzknoten eines Telekommunikationsnetzes ist. Dabei wird vorgeschlagen, dass das Kompensationsmodul (MOD1, MOD2) das mindestens eine erste Taktsignal (TS1) um eine vorbestimmte erste Verzögerungsdauer (VZ1) zu einem verzögerten ersten Taktsignal (TS1d) verzögert, dass das Kompensationsmodul (MOD1) das zweite Taktsignal (TS2) um eine vorbestimmte zweite Verzögerungsdauer (VZ2) zu einem verzögerten zweiten Taktsignal (TS2d) verzögert, und dass das Kompensationsmodul (MOD1) die zweite Verzögerungsdauer (VZ2) derart modifiziert, dass das verzögerte zweite Taktsignal (TS2d) an die Phase des verzögerten ersten Taktsignals (TS1d) angepasst ist.