Patent ID: 7082305
Filing Date: 2006-07-25
Classification: H04B,H04W

Abstract:
1. A method for use in a controller in a radio network including a number of cells, in which network a user equipment communicates with at least one cell defining an active set, the user equipment (UE) having a velocity vector including position, speed, and direction, comprising: receiving information related to the velocity vector; filtering a neighbor cell list associated with active set using the velocity vector related information to create a filtered neighbor cell list including filtering out fewer cells from the neighbor cell list when the speed of the user equipment is higher than when the speed is lower; and transmitting the filtered neighbor cell list to the user equipment thereby enabling measurement of pilot signal strength for cells in the filtered neighbor cell list, wherein when the network includes different hierarchical level cells, the filtering depends on the speed of the user equipment, the method further comprising: filtering out from the neighbor cell list one or more larger cells when the speed is under a speed threshold, and filtering out from the neighbor cell list one or more smaller cells when the speed is over the speed threshold, and wherein when the network includes cells using different radio access technologies, the filtering depends on which radio access technology is used in the different cells.