Frequency hopping

A user device comprising:

• a controller configured to synchronize the user device with a base station using a synchronization signal transmitted from the base station;
• and
• a transceiver circuit configured to:
• receive information from the base station, the information corresponding to first contiguous resource blocks allocated to the user device;
• communicate with the base station using the first contiguous resource blocks starting from a first resource block at a first slot in a first subframe and using second contiguous resource blocks starting from a second resource block at a second slot in the first subframe;
• and
• communicate with the base station using third contiguous resource blocks starting from a third resource block at a first slot in a second subframe and using fourth contiguous resource blocks starting from a fourth resource block at a second slot in the second subframe,
• wherein the controller is further configured to calculate a position of the third resource block in a frequency axis using a formula including A mod B,
• wherein A is determined by sum of a first value and a second value, the first value corresponding to a position of the first resource block in the frequency axis and the second value being determined using uplink bandwidth size,
• wherein B is determined using the uplink bandwidth size,
• wherein the position of the first resource block is the same as a position of the second resource block in the frequency axis and the position of the third resource block is the same as a position of the fourth resource block in the frequency axis, and
• wherein the number of the first contiguous resource blocks is the same as the number of the second contiguous resource blocks, the number of the third contiguous resource blocks and the number of the fourth contiguous resource blocks.

A method for a base station, the method comprising:

• transmitting a synchronization signal and information to a user device, the information corresponding to first contiguous resource blocks allocated to the user device;
• communicating with the user device using the first contiguous resource blocks starting from a first resource block at a first slot in a first subframe and using second contiguous resource blocks starting from a second resource block at a second slot in the first subframe;
• and
• communicating with the user device using third contiguous resource blocks starting from a third resource block at a first slot in a second subframe and using fourth contiguous resource blocks starting from a fourth resource block at a second slot in the second subframe,
• wherein a position of the first resource block is the same as a position of the second resource block in a frequency axis and a position of the third resource block is the same as a position of the fourth resource block in the frequency axis,
• wherein the number of the first contiguous resource blocks is the same as the number of the second contiguous resource blocks, the number of the third contiguous resource blocks and the number of the fourth contiguous resource blocks,
• wherein the position of the third resource block in the frequency axis is determined using a formula including A mod B,
• wherein A is determined by sum of a first value and a second value, the first value corresponding to the position of the first resource block in the frequency axis and the second value being determined using uplink bandwidth size, and
• wherein B is determined using the uplink bandwidth size.