Method in a base station for handling a request from a first user equipment for accessing a service in a radio communications network, the base station communicating with a second user equipment (120, 121, 122, 123, 124) over a radio link, the method comprising the step of: receiving a first time interval of an incoming signal, which incoming signal comprises a first signal sent from the first user equipment and a second signal sent from the second user equipment (120, 121, 122, 123, 124), said method characterized by the further steps of: interpreting the first signal as being a possible real service access request message or a preamble thereof; sending an acknowledgement, that the possible real service access request message or preamble thereof is detected, to the first user equipment; delaying the first time interval of the incoming signal, identifying the second signal in the first time interval of the incoming signal during the delay; and interference washing the first time interval of the incoming signal, i.e. cancelling interference caused by the identified second signal, by cancelling the identified second signal from the first time interval of the incoming signal during the delay. deciding whether the possible real service access request message or the preamble thereof is a real service access request message or a preamble thereof, or not, by analysing the interference washed incoming signal. receiving a first time interval of an incoming signal, which incoming signal comprises a first signal sent from the first user equipment and a second signal sent from the second user equipment (120, 121, 122, 123, 124), said method characterized by the further steps of: interpreting the first signal as being a possible real service access request message or a preamble thereof; sending an acknowledgement, that the possible real service access request message or preamble thereof is detected, to the first user equipment; delaying the first time interval of the incoming signal, identifying the second signal in the first time interval of the incoming signal during the delay; and interference washing the first time interval of the incoming signal, i.e. cancelling interference caused by the identified second signal, by cancelling the identified second signal from the first time interval of the incoming signal during the delay. deciding whether the possible real service access request message or the preamble thereof is a real service access request message or a preamble thereof, or not, by analysing the interference washed incoming signal. interpreting the first signal as being a possible real service access request message or a preamble thereof; sending an acknowledgement, that the possible real service access request message or preamble thereof is detected, to the first user equipment; delaying the first time interval of the incoming signal, identifying the second signal in the first time interval of the incoming signal during the delay; and interference washing the first time interval of the incoming signal, i.e. cancelling interference caused by the identified second signal, by cancelling the identified second signal from the first time interval of the incoming signal during the delay. deciding whether the possible real service access request message or the preamble thereof is a real service access request message or a preamble thereof, or not, by analysing the interference washed incoming signal.