Patent ID: 7020124

Claim:
A frame control method for controlling a transport frame used for transmitting a data unit (TB) via a dedicated channel between network elements ( 2 , 3 ; 10 ) of a communication system having different types of connections, comprising the steps of: (a) encapsulating said data unit (TB) into said transport frame; (b) selecting a frame type coding of said transport frame in accordance with a connection type of said dedicated channel; and (c) maintaining information on the frame types to be used for data units on a dedicated channel, wherein said frame type coding defines specific control information fields of the transport frame and its bit number, wherein said specific control information fields include a transport format indicator field, the bit number of the transport format indicator field is determined on the basis of the number of different transport format indicators allowed for said dedicated channel, and wherein a value of said transport format indicator field defines if and how a whole original data unit set is split into different data units to be transported via said dedicated channel.