a housing;

at least one antenna array comprising antenna elements disposed in the housing, or formed in part of the housing;

at least one processor electrically or operatively connected with the antenna array, and configured to form N-ary reception beams (rx beams) having different directions, using the antenna array; and

a memory operatively connected with the processor,

wherein the memory stores instructions for, when executed, causing the processor to,

generate N×M-ary measurement results, by measuring signal strength values of M-ary transmission beams (tx beams) transmitted from at least one base station and having different directions, using the N-ary rx beams,

select one of a plurality of methods for selecting a beam pair among the N×M-ary beam pairs, based at least in part on the measurement results,

wherein the instructions cause the processor to,

determine a state of the electronic device, based at least in part on the measurement results,

select the one of the plurality of the methods, based at least in part on the determined state,

select the beam pair by the selected method, and

establish a beam pair link using the selected beam pair, and

wherein the plurality of the methods comprises a first method for selecting a first beam pair comprising a first rx beam and a first tx beam, if the state is a first state, among the N-ary rx beams, and wherein the first rx beam indicates the greatest measurement value with respect to the first tx beam, and

wherein the instructions cause the processor to establish a first beam pair link using the first beam pair,

wherein the plurality of the methods comprises a second method for selecting a second beam pair comprising a second rx beam and a second tx beam, if the state is a second state in which mobility is greater than the first state, among the N-ary rx beams, wherein the second rx beam indicates the greatest measurement value with respect to the second tx beam, and

wherein the second rx beam is selected by considering measurement values of the second tx beam using rx beams adjacent to the second rx beam, selected according to the direction of the second rx beam, and

wherein the instructions cause the processor to establish a second beam pair link using the second beam pair, and

wherein the N and M are integers greater than or equal to 2.