Patent ID: 7054646

Claim:
A transmission method for a communication system comprising a plurality of mobile nodes (MN, MTN) and an access network ( 110 ) with a plurality of access points (AP, MTN) through which the mobile nodes are connected to the access network, the method comprising the steps of storing location-dependent parameter sets, each parameter set containing at least one parameter indicative of the location of a mobile node, monitoring a group of variables associated with the mobile node, the group containing at least one variable of which at least one is derived from the at least one parameter, comparing the current value of said at least one variable with predetermined first criteria, and selecting a multicast-based operation mode in which data destined for the mobile node is to be transmitted (1) to the current access point and (2) to a set of potential new access points prior to a handover, the multicast-based operation mode being selected when the step of comparing indicates that said at least one variable meets the predetermined first criteria.