Patent ID: 8279943

Claim:
Method for reception of Digital Video Broadcasting-Handheld (DVB-H) signals wherein a MPEG Transport Stream (MPEG TS) is grouped into packets belonging to a certain IP data stream and forming bursts in time slices, the MPEG-TS is modulated into Orthogonal Frequency Division Modulation (OFDM) symbols, these symbols are grouped in frames, the frames themselves are grouped in superframes and symbols, frames and superframes are provided with numbers, whereas a transmitter does not change the transmission parameters (FFT mode, guard interval, code rate, modulation format) between successive bursts and a receiver is notified about a relative time from a first burst to transmission of the next burst and the receiver is switched off between the first and the next burst comprising: accurately calculating a receive time of the next burst from the DVB-H delta-t time received in the first burst; setting a wake up timer and powering down the receiver; powering up the receiver for reception of the next burst at the superframe boundary; executing signal acquisition; calculating the symbol number and frame number of the first symbol that contains relevant data to be modulated within the actual superframe; calculating the number of bits to be discarded from the MPEG-TS to align with a boundary of a MPEG-TS-packet; discarding the bits; and starting demodulation at the boundary of the MPEG-TS-packet; and wherein a Digital Video Broadcasting-Terrestrial (DVB-T) receiver skips: detection of a channel bandwidth selected from one of 8, 7, 6, and 5 MHz; detection of a guard interval duration; detection of a FFT mode selected from one of 8 k, 4 k and 2 k; detection of a modulation format; detection of a code rate; detection of hierarchical transmission; and detection of a frame and super frame boundaries.