METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING CONTROL INFORMATION IN A COMMUNICATION SYSTEM

摘要

The present invention relates to a method and an apparatus to transmit and receive by encoding control information in a communication system. According to an embodiment of the present invention, a method of receiving the control information in a broadcasting and communication system comprises the steps of: obtaining information on the number of bits for information on a layer one (L1) signaling; calculating the number of encoding blocks the information on the L1 signaling is divided into and transmitted; calculating the number of bits for the input information on each encoding blocks and calculating the number of punch bits for parity bits of the coding blocks; and decoding one or many encoding blocks in the received frame based on the obtained and calculated information according to the above steps. [Reference numerals] (301) L1 signaling information transmitted from a T2 frame; (302) L1 pre-signaling information (INFO 41+RESERVED 227 (OR 117)+CRC 32); (303) L1 static information; (304) L1 variable information; (305) L1 dynamic information; (306) Padding (X-bit); (AA) One 16K LDPC block: 182 BITS, BPSK, 1/5; (BB) One or more 16K LDPC block(s): VARIABLE INFO SIZE (182 TO 17,194 BITS) AND VARIABLE MCS