Patent ID: 7440487

Claim:
A mobile telecommunication system, comprising: a base station; and at least one mobile station in communication with the base station, wherein the mobile station is configured to receive a binary word transmitted from the base station, the base station is configured to select one or more midambles from a set of available midambles in accordance with a value of a binary element of a binary word representative of at least one transmission parameter allocated to the at least one mobile station, said available midambles are shifted versions of a basic midamble, and said base station further is configured to transmit the selected one or more midambles as being representative of said binary word, the binary word having as many binary elements as a number of available midambles, each binary element of the binary word corresponding to each of the available midambles on a one-to-one basis, and the presence of a particular midamble to be selected from the set of available midambles is indicated when the value of the binary element of the binary word representing information about spreading codes corresponds to the particular midamble is equal to 1, while absence of a particular midamble to be selected is indicated when the value of the binary element corresponding to the particular midamble is equal to 0.