The present invention is attained by a network nodes such as radio base stations and radio network controllers and methods m a cellular radio telecommunications network for providing a radio air interface to at least a first mobile terminal m at least a first radio coverage area, hereinafter referred to as cell, comprising a receiver for receiving uplink packet data from the at least one mobile terminal. The radio base station further comprises a rate limiter provided to limit the uplink packet data transmission rate from the at least first mobile terminal during handover between the at least first cell and another cell.