| US 7,609,702 B2 | ||
| Interworking between cell and packet based networks | ||
| Tamas Major, Düsseldorf (Germany) | ||
| Assigned to Nokia Corporation, Espoo (Finland) | ||
| Filed on Mar. 23, 2005, as Appl. No. 11/86,557. | ||
| Claims priority of application No. 05000916 (EP), filed on Jan. 18, 2005. | ||
| Prior Publication US 2006/0159102 A1, Jul. 20, 2006 | ||
| Int. Cl. H04L 12/28 (2006.01); H04J 3/16 (2006.01) | ||
| U.S. Cl. 370—395.6 [370/466] | 28 Claims |
| 1. An apparatus, comprising:
a receiver configured to receive segments of data units from a cell based network, wherein the data units are data units of
a higher layer of the cell based network, and wherein the higher layer of the cell based network terminates at the apparatus;
a processor configured to form transport packets out of the segments of the data units irrespective of whether a complete
data unit has been received, using a segmentation/reassembly and multiplexing/demultiplexing layer of the apparatus which
is introduced on top of a transport layer of the apparatus,
wherein the segmentation/reassembly and multiplexing/demultiplexing layer is configured to add an indication to a segment
out of the segments received, the indication configured to indicate a specific data unit to which the segment belongs, and
put the segment with the indication into a transport packet to be transmitted to a packet based network,
wherein the segmentation/reassembly and multiplexing/demultiplexing layer is configured to repeat these processes for each
of the segments received, thereby forming the transport packets; and
a transmitter configured to transmit the transport packets to the packet based network.
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