Patent ID: 11923966
Assignee: ONE MEDIA, LLC
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 13:
14. A method, comprising:
receiving an initial Orthogonal Frequency Division Multiplexing (OFDM) symbol of a frame control of a preamble of a broadcast communication frame;
receiving a subsequent OFDM symbol of the frame control,
wherein the initial OFDM symbol is based on a modulation of a frequency domain Constant Amplitude Zero Auto-Correlation (CAZAC) sequence by a pseudo-noise (PN) sequence, and
wherein the frequency domain CAZAC sequence modulated by the PN sequence determines a service type associated with the broadcast communication frame;
using the initial ODFM symbol for coarse synchronization and initial channel estimation;
determining a cyclic shift associated with the subsequent OFDM symbol, wherein the cyclic shift is based on frame configuration information associated with the broadcast communication frame and wherein the frame configuration information comprises parameters of the preamble; and
using the subsequent OFDM symbol for acquisition of one or more subsequent OFDM symbols of the preamble.