Method for acquiring system information by a mobile station in a mobile radiocommunication system

#This application is based on European Patent Application No. 06291293.6 filed Aug. 9, 2006, the disclosure of which is hereby incorporated by reference thereto in its entirety, and the priority of which is hereby claimed under 35 U.S.C. §119.

#1. Field of the Invention

#The present invention generally relates to mobile communication systems.

#These and other objects of the present invention will become more apparent from the following description taken in conjunction with the accompanying drawings:

#FIG. 1 is intended to recall the architecture of a mobile communication system such as for example UMTS, and of a Radio Access Network such as for example UTRAN,

#FIGS. 2 to 6 are intended to illustrate examples of a method according to the present invention.

#By way of example, UTRAN will more particularly be considered in the following description, as an example of RAN to which the present invention applies; however it should be understood that the present invention is not limited to this particular example.

#The present invention may also be explained as follows, to simplify based on examples. In particular, the example of initial access for establishing (or re-establishing) a radio connection will be more particularly considered in the following; however it should be understood that the present invention is not limited to this example, and could be used in other examples such as access for establishing a radio connection in case of cell reselection for example.

#Since new radio access technologies are being deployed, in one UTRAN cell, the number of neighbouring cells is increasing. Therefore system information corresponding to neighbour cell information (such as in particular in SIB 11) are increasing. If all the information would have to be read before the UE initial access, this initial access could be delayed, thus impacting the call set-up delay and affecting the user experience.