Method of feedback for HSDPA system using OFMDA

Abstract

A method of data communication. Before the base station may schedule a wireless handset, the method includes the step of transmitting an initial channel condition information signal. The initial channel condition information signal corresponds with a set of transmitted blocks. Each transmitted block includes a set of orthogonal tones. The initial channel condition information signal may be derived from an average and/or a mean value of at least two of the transmitted blocks. In response to the initial channel condition information signal and/or the size of the downlink transmission, the base station, subsequently, schedules the wireless handset. Thereafter, a follow-up channel condition information signal corresponding with a number of allocated blocks is transmitted. The follow-up channel condition information signal may be derived from an average and/or a mean value of at least two of the blocks allocated by the base station to the wireless handset.

Dependencies are inferred from the claim text.