METHOD FOR PROVIDING PARAMETERS DURING A CHANGE OF ACCESS, CELLULAR COMMUNICATIONS SYSTEM, USER EQUIPMENT AND NETWORK ELEMENT

摘要

The invention relates to methods for providing parameter values required at different locations of a cellular communications system for packet header creation, to cellular communications systems and to their components. In order to enable a supply of continuous values for said parameters after a change of access of a user equipment from one network element to another, it is proposed that the parameter is either continuously stored and/or generated in the user equipment throughout a connection or transmitted from a first network element to the user equipment when the access of the user equipment is changed from the first to a second network element. On the other hand, it is proposed that the user equipment transmits said parameter to a network element to which it changes or that the network element to which the user equipment was connected transmits said parameter to the network element to which the user equipment changes.