Section: 6.2.5 Guard period for half-duplex FDD operation
Content: For type A half-duplex FDD operation, a guard period is created by the UE by - not receiving the last part of a downlink subframe immediately preceding an uplink subframe from the same UE. For type B half-duplex FDD operation, guard periods, each referred to as a half-duplex guard subframe, are created by the UE by - not receiving a downlink subframe immediately preceding an uplink subframe from the same UE, and - not receiving a downlink subframe immediately following an uplink subframe from the same UE.