Patent ID: 7656871

Claim:
An information communication method for a mobile communication system based on code division multiple access, wherein a transport block set size is informed by identification codes from a base station to a mobile station, and the base station and the mobile station perform communication using a plurality of channelization codes, the information communication method comprising the steps of: transmitting, at the base station, a first identification code representing a number of multicode which is a number of the channelization codes assigned to a mobile station, the first identification code furthermore being used for identifying the transport block set size, a second identification code representing a modulation scheme used in the code division multiple access, the second identification code furthermore being used for identifying the transport block set size, and a third identification code used for identifying the transport block set size in combination with the first identification code and the second identification code, wherein a plurality of the third identification codes corresponds to a combination of the first identification code and the second identification code; and receiving, at the mobile station, said first identification code, second identification code and third identification code; and identifying, at the mobile station, the transport block set size by a combination of the first identification code, the second identification code and the third identification code, received in the receiving based on a table which indicates a relation between the transport block set size and the combination of the first identification code, the second identification code and the third identification code, wherein the third identification codes are expressed by entire bits assigned to signaling of the third identification codes, and the transport block set size belongs to a first set of transport block set sizes or a second set of transport block set sizes which is different from the first set of transport block set sizes, each difference between two transport block set sizes included in the first set of transport block set sizes is an integer multiple of a predetermined number, and at least a part of the difference between each two transport block set sizes included in the second set of transport block set sizes is not an integer multiple of the predetermined number.