METHOD AND DEVICE FOR HANDLING DATA IN CERTAIN LAYERS ACCORDING TO CERTAIN PROTOCOLS IN A MOBILE COMMUNICATIONS SYSTEM

摘要

The scope of the present invention is a method for data transfer in a digital mobile communications system, in which method is handled data in certain layers according to certain protocols; in a certain layer out of said layers is transferred user data in radio blocks (RB) over a physical radio channel between a mobile station and a fixed mobile communications network; for the transfer of said certain layer is formed in the radio block (RB) a payload of a certain size comprising check bits (CHB) connected with the performing of the transfer and transfer bits (TB) available for the transfer of user data; each radio block (RB) is channel coded using a certain coding method and the size of said payload is dependent on the coding method. In the transfer bits (TB) of the radio block to be coded using at least a certain coding method is transferred user data in a first part of the transfer bits and in a second part of the transfer bits is transferred fill bits in such a way that is chosen for the transfer of user data a number of transfer bits divisible by eight.