Patent ID: 8345531

Claim:
Method for selecting a transmission technology for a HSDPA connection established between a Radio Network Controller and a User Equipment, the User Equipment having a serving base station and a serving cell assigned, wherein both the Radio Network Controller and the User Equipment support both HSDPA MIMO technology and HSDPA non MIMO technology, characterised in that the method comprises the steps of: (i) measuring by the Radio Network Controller position variations of the User Equipment; (ii) if the connection is established by means of HSDPA MIMO technology, comparing by the Radio Network Controller the position variations with, at least one, first pre-defined threshold; (iii) if the connection is established by means of HSPDA non MIMO technology, comparing by the Radio Network Controller the position variations with, at least one, second pre-defined threshold; iv) if the connection is established by means of HSDPA MIMO technology and if the position variations exceed the, at least one, first pre-defined threshold, switching by the Radio Network Controller the connection to HSPDA non MIMO technology; v) if the connection is established by means of HSPDA non MIMO technology and if the position variations are below the, at least one, second pre-defined threshold, switching by the Radio Network Controller the connection to HSDPA MIMO technology.