Patent ID: 7421005

Claim:
Apparatus for use in a radio telecommunications system comprising: a frequency offset hopping sequence generator configured to generate variable frequency offsets for a mobile station during a clocking of a time index, the variable frequency offsets being generated as a function of the time index whereby magnitude of the variable frequency offsets for the mobile station varies based on the time index; a frequency hopping generator configured to determine a frequency hopping sequence for use in communication between the mobile station and a network node; wherein the variable frequency offsets are chosen so that the frequency hopping sequence provides intra-cell interference diversity; wherein the frequency hopping sequence generator determines a frequency offset index which is mapped to one of a plural possible frequency offsets, the frequency offset index being determined to provide the frequency hopping sequence with both interference diversity and orthogonality; wherein the frequency offset index has a first component and a second component; and wherein the first component is an intra-cell component and the second component is an intra-cell component.