Patent ID: 7620367

Claim:
A method of selecting, by a mobile terminal, including a wireless receiver, a signal processor, control logic, and a wireless transmitter, in a TDD wireless communication system, a sub-range of frequencies for uplink transmission from a plurality of sub-ranges of frequencies for uplink transmission, comprising: receiving, via the wireless receiver, a downlink signal that has been transmitted over a range of frequencies, comprising a plurality of sub-ranges of frequencies representative of the plurality of sub-ranges of frequencies for uplink transmission, the downlink signal having a known structural aspect as transmitted; determining, by the signal processor, a frequency response of the radio channel through which the downlink signal has passed by comparing the structural aspect of the received downlink signal with the known structural aspect of the downlink signal as transmitted; estimating, by the control logic, at least one path loss metric for at least one of the sub-ranges of frequencies for uplink transmissions based on the frequency response of the radio channel; and selecting, by the control logic, at least one of the sub-ranges of frequencies for uplink transmission, based on the at least one path loss metric.