Patent ID: 7164914
Filing Date: 2007-01-16
Classification: H04W

Abstract:
1. A secondary station for use in a radio communication system comprising a plurality of primary stations, the secondary station having means for engaging in a soft handover process, in which the secondary station communicates simultaneously with at least two primary stations, receiver means for receiving transmitted downlink signals from the at least two primary stations as a plurality of signals, timing measurement means for determining a downlink timing reference, and for determining an offset between the downlink timing reference and an uplink timing reference for use in the transmission of uplink signals, wherein means are provided for varying the size of the offset, wherein the timing measurement means further comprises means for determining whether a first signal path received from a primary station is received within a timing window having a lower and an upper time limit and means for requesting a primary station to alter the timing of transmissions of the primary station so that the first signal path from the primary station is received within the timing window.