A communication method for constructing a parameter table in a wireless communication system including a base station and a user equipment, and user equipment are provided. The method includes: storing, as a type of a table corresponding to a modulation coding scheme notified by downlink data from a base station, a conventional modulation coding scheme parameter table including a combination of modulation orders and a transport block size index, and an aggressive modulation coding scheme parameter table including a modulation order higher than that of the conventional modulation coding schemeparameter table; receiving, from the base station, an indication to select which one of the legacy modulation coding scheme parameter table or the aggressive modulation coding scheme parameter table;selecting one of a traditional modulation and coding mode parameter table or the aggressive modulation and coding mode parameter table based on the indication, wherein the number of entries in the pre-stored aggressive modulation and coding mode parameter table is the same as the number of entries in the pre-stored traditional modulation and coding mode parameter table, the two tables are independently arranged, and the traditional modulation and coding mode parameter table is indicated through a downlink control information format 1A.