Abstract: A method for enhanced policy and/or charging control when a mobile telecommunications network is used by a user equipment corresponding to a subscriber of a mobile virtual telecommunications network includes; using, by the user equipment, a radio access network; collecting and/or generating, by a radio network element of the radio access network, subscriber-related policy and/or charging control data depending on the use of the radio access network by the user equipment; and transmitting the subscriber-related policy and/or charging control data, from the radio network element to a policy and/or charging control entity, using at least one policy and/or charging control interface.

Abstract: A method for enhanced policy and/or charging control when a mobile telecommunications network is used by a user equipment corresponding to a subscriber of a mobile virtual telecommunications network includes; using, by the user equipment, a radio access network; collecting and/or generating, by a radio network element of the radio access network, subscriber-related policy and/or charging control data depending on the use of the radio access network by the user equipment; and transmitting the subscriber-related policy and/or charging control data, from the radio network element to a policy and/or charging control entity, using at least one policy and/or charging control interface.

Abstract: There is proposed the design of an absorber with the lowest reflection coefficient, especially between 30 and 150 Mhz where most of actual anechoic chambers exhibit problems. The absorber with optimized low frequency reflection comprises a a twisted pyramid having a length 11 and permittivity coefficients e1' and e1", a first layer adjacent the base of the pyramid having a width 12, and permittivity coefficients e2' and e2", and a second layer adjacent the first layer having a width 13, and permittivity coefficients e3' and e3", with 11 equal to 2.20 m (+/- 1 cm), 12 equal to 0.188 m (+/- 1 cm), 13 equal to 0.302 m (+/- 1 cm), ande1'=10 E (-0.370 LogF+1.005)(+/- 10%)e1"=-10 E (-0.484 LogF+1.012)(+/- 10%)e2'=10 E (-0.353 LogF+1.317)(+/- 10%)e2"=-10 E (-0.222 LogF+0.789)(+/- 10%)e'=10 E (-0.316 LogF+1.785)(+/- 10%)e"=-10 E (-0.598 LogF+2.347)(+/- 10%)in the range 30-150 Mhz.