Patent ID: 7830998

Claim:
Within a bandwidth configurable modem, a method of generating synchronization symbols for a transmitted waveform, comprising: selecting a frequency sub-band for which synchronization symbols are desired, said sub-band comprising v frequency bins with associated frequency sub-carriers; and generating synchronization symbols as a discrete time domain LFM signal x′(n) with signal values obtained using the equation: x ′ ⁡ ( n ) = ⅇ jπ ⁢ ⁢ vn 2 N 2 + j2π ⁢ ⁢ k 0 ⁢ n N where: N is the length of the signal in samples; n=0 to N−1; and k 0 is the sub-carrier index corresponding to the first frequency bin within the selected sub-band.