The invention relates to a method for producing perfluoroalkyl phosphines, comprising at least one step in which at least one fluorophosphorane is reacted with at least one hydride ion donator, and the use of trisphosphines as perfluoroalkylating reactants. When a resource of an Interference Cancellation zone is allocated to a terminal traveling in a service coverage, resource allocation information relating to an IC zone of neighbor cells is gathered. The top drive retainers engage the inboard side of each housing section between the upper stops and the shock absorbers. Substantially V shaped notches may however be defined between the tabs.