Patent ID: 9009762
Filing Date: 2015-04-14
Classification: H04L,H04N

Abstract:
1. A digital video broadcasting-satellite-second generation (DVB-S2) based transmission and reception apparatus, comprising: a DVB-S2 based transmitter; a mapping unit to determine bit mapping based on at least one of a state of a transmission channel and an area to be applied; a physical layer frame (PLframe) replica processing unit to repeat a PLframe in which a physical layer header (PLheader) corresponding to a spreading factor (SF) is inserted, and a PLheader processing unit to configure a spread frame having a length of 16,290 bits by adding the PLheader through π/2 BPSK modulation and 16K low-density parity-check (LDPC) encoding, and replace an existing modulation and coding (MODCOD) frame with the configured spread frame.