Maintaining the composition of transferred data during handover

Details Maintaining the composition of transferred data during handover Maintaining the composition of transferred data during handover

1996-10-22

1999-08-17

Hsu, Alpus H.

Multiplex communications

Data flow congestion prevention or control

Flow control of data transmission through a network

370331, 370349, 370397, 455436, H04B 726, H04L 1256

Patent

active

059403713

ABSTRACT:
In a radio data transmission system which transmits data in cell form, the risk of cell loss or the risk of out-of-ordering during handover can be diminished by synchronizing the cell transmission between the new (50) and the old (40) base stations. The old base station (40) delivers to the new base station (50) and/or the switch (51), information on the last cell that was transmitted successfully and in the right order through the old base station, whereby the new base station continues the transmission by starting from the first failed cell. Cells need not be identified one by one if group numbering is applied in which the first or the last cell of a given group (31, 32, 33, 34) or a given counter cell is numbered, and the rest can be indicated, where necessary, by counting the distance from the numbered cell.

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