Abstract: An AAL2 path group (60) comprises plural AAL2 paths (35). Bandwidth of an individual AAL2 path comprising the AAL2 path group is contributed to a total bandwidth of the AAL2 path group rather than to the individual AAL2 path exclusively. An admission decision regarding a connection seeking to use an AAL2 path belonging to the AAL2 path group is based on available bandwidth of the AAL2 path group rather than available bandwidth of an individual AAL2 path. ATM VCCs which comprise the AAL2 path group are transported on a virtual path (VP) together with ATM VCCs of a different type (e.g., a second type which differs from a first type of ATM VCC which comprise the AAL2 path group). The AAL2 path group also features quality of service (QoS) separation, e.g., differing treatment for differing AAL2 connections within the AAL2 path group based on the QoS requirements for the differing AAL2 connections.

Abstract: The present invention relates to a telecommunications system, nodes, device boards and methods in such telecommunications systems, where a node comprises a first device board, which includes a receiving section (25) having at least one input port (29, 31, 33), to which an input buffer (30, 32, 34, 36, 38, 40) is connected for receiving TDM-channels in TDM-frames, and having at least one transmitting buffer (42, 44, 45). A second device board includes a transmitting section (27) having a receiving buffer (48, 50, 51) for every other device board, at least one output port (59, 61, 63) and at least one output buffer (52, 54, 56, 58, 60, 62) for every output port. All TDM-channels received in input buffers intended for the transmitting section are copied to a corresponding transmitting buffer and the content of the transmitting buffer reaches the transmitting section through sending of at least one transport module solely containing all TDM-channels intended for said second device board.

Abstract: An AAL2 path group (60) comprises plural AAL2 paths (35). Bandwidth of an individual AAL2 path comprising the AAL2 path group is contributed to a total bandwidth of the AAL2 path group rather than to the individual AAL2 path exclusively. An admission decision regarding a connection seeking to use an AAL2 path belonging to the AAL2 path group is based on available bandwidth of the AAL2 path group rather than available bandwidth of an individual AAL2 path. ATM VCCs which comprise the AAL2 path group are transported on a virtual path (VP) together with ATM VCCs of a different type (e.g., a second type which differs from a first type of ATM VCC which comprise the AAL2 path group). The AAL2 path group also features quality of service (QoS) separation, e.g., differing treatment for differing AAL2 connections within the AAL2 path group based on the QoS requirements for the differing AAL2 connections.

Abstract: A data packet format includes an important information field in a data packet header or payload, e.g., a transport format indication field including one or more indicating the transport format for the data packet. It also includes one or more error correction bits associated with the important information field, (e.g., the transport format indication field), usable by an error correction scheme at a receiver to correct errors in the received header. An error detection field in the data packet is used at the receiver to detect such bit errors. In one example implementation, the one or more error correction bits are positioned in spare or unused bit locations in the data packet. In a further implementation, one or more unused bits in the important data field are used to carry the one or more error correction bits.