Mobile station, rf front-end module for mobile station, and front-end integrated circuit

An RF front-end module for a mobile station, comprising:

• a plurality of antenna modules;
• and
• a controller, wherein
• the plurality of antenna modules each include an antenna element and a variable phase shifter connected to the antenna element, and
• the controller is configured to receive a beam control signal indicating a direction of an antenna beam formed by the plurality of antenna elements, from a baseband processor, determine a phase control amount for each variable phase shifter on the basis of the beam control signal, and control each variable phase shifter on the basis of the determined phase control amount.

An RF front-end module for a mobile station, comprising:

• a substrate;
• a plurality of antenna elements formed on the substrate;
• and
• a front-end integrated circuit provided on the substrate and connected to a baseband processor, wherein
• the front-end integrated circuit includes a plurality of variable phase shifters provided so as to correspond to the plurality of antenna elements, respectively, and a controller, and
• the controller is configured to receive a beam control signal indicating a direction of an antenna beam formed by the plurality of antenna elements, from the baseband processor, determine a phase control amount for each variable phase shifter on the basis of the beam control signal, and control each variable phase shifter on the basis of the determined phase control amount.

A front-end integrated circuit to be connected to a baseband processor and a plurality of antenna elements, the front-end integrated circuit comprising:

• a plurality of variable phase shifters provided so as to correspond to the plurality of antenna elements, respectively;
• and
• a controller, wherein
• the controller is configured to receive a beam control signal indicating a direction of an antenna beam formed by the plurality of antenna elements, from the baseband processor, determine a phase control amount for each variable phase shifter on the basis of the beam control signal, and control each variable phase shifter on the basis of the determined phase control amount.