Patent ID: 7852824
Filing Date: 2010-12-14
Classification: H04B,H04W

Abstract:
1. A method of improving the performance of a random access mobile communications system, comprising the following steps of: transmitting, by a user equipment, a random access request to a base station on an uplink channel, receiving, by the user equipment, an indicator signal from a base station on a downlink channel which indicator signal has been generated in and transmitted from the base station upon the detection in the base station of said random access request, determining a received signal strength in an access slot comprising said indicator signal in said downlink channel; and asserting whether detection of said indicator signal in said access slot in said downlink channel is reliable based on the determination step; wherein said indicator signal is associated with a first signature selected from a set of unique signatures and wherein the determination step further comprises determining the received signal strength in said downlink channel on at least one second signature in the set of unique signatures, which at least one second signature is different from said first signature.