Patent ID: 6385451
Filing Date: 2002-05-07
Classification: H04W

Abstract:
A method for handing over a connection between a first (NW1) and a second mobile communication network (NW2) in a wireless terminal (MS1), in which method at least one data transmission connection is established for the purpose of transmitting information between the wireless terminal (MS1) and one said mobile communication network (NW1, NW2), the connection type in the first mobile communication network being either connection-oriented (HSCSD) or connectionless (GPRS), and wherein at least two traffic classes with different transmission features are defined in the second mobile communication network (NW1, NW2) and one of them is selected for the data transmission connection of the second mobile communication network (NW1, NW2), characterized in that in the method:it is examined what active data transmission connections the wireless terminal (MS1) has to the mobile communication network (NW1, NW2) handing over the connection, when handing over a connection from the first mobile communication network (NW1) to the second mobile communication network (NW2), the connection type of each active data transmission connection is examined, the traffic class corresponding to each active data transmission connection type is defined in the second mobile communication network (NW2), and a connection according to the defined traffic class is established for each data transmission connection in the second mobile communication network (NW2), when handing over a connection from the second mobile communication network (NW2) to the first communication network (NW1), the traffic class of each active data transmission connection is examined, the connection type corresponding to each active data transmission traffic class is defined in the first mobile communication network (NW1), and a connection according to the defined connection type is defined for each data transmission connection in the first mobile communication network (NW1).