Patent ID: 8565082

Claim:
A method of adjusting a length of a cyclic prefix used in orthogonal frequency division multiplexing (OFDM) communications, comprising: transmitting, through an access point, OFDM signals using a first cyclic prefix length; determining a load of said access point; selecting a second cyclic prefix length based, at least in part, on said load, wherein selecting a second cyclic prefix length based, at least in part, on said load comprises (i) determining that said load corresponds to one of a plurality of load ranges to provide an identified load range, wherein each load range is associated with a respective cyclic prefix length such that higher loads are associated with shorter cyclic prefix lengths and (ii) selecting said identified load range's associated cyclic prefix length as said second cyclic prefix length; and transmitting, through said access point, OFDM signals using said second cyclic prefix length.