| 摘要 |
A subscriber station ( 101 - 103 ) accesses a multicarrier communication system ( 100 ) by determining ( 505 ) one or more channel characteristics that is indicative of a range of the subscriber station from a base station, selecting ( 510 ) an access code that generates an access signal having a peak to average power ratio, using the one or more channel characteristics, generating ( 515 ) an access signal from the access code, and transmitting ( 525 ) the access signal and also by determining ( 405 ) one or more channel characteristics of each frequency sub-band of a set of frequency sub-bands, selecting ( 410 ) a frequency sub-band of the set of frequency sub-bands based on the one or more channel characteristics, and transmitting ( 420 ) the access signal on the selected frequency sub-band.
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