A User Equipment, UE,, comprising: a processor; and a memory for storing executable instructions, wherein when the processor executes the instructions, the UE is caused to: initiate handover from a macrocell to a small cell within a hierarchical radio access network using a first pilot strength threshold value when the UE is operating in a standard mode; and initiate handover from the macrocell to the small cell using a second pilot strength threshold value when the UE is operating in a High Speed Mobility, HSM, mode, wherein the second pilot strength threshold value is equal to the first pilot strength threshold value modified by an HSM pilot strength threshold offset parameter that limits handover of the UE from the macrocell to the small cell when the UE is operating in the HSM mode; wherein the UE is configured to determine whether the UE should operate in the HSM mode by: storing (325, 505) historical information of handovers or cell-reselections, the information including a timestamp associated with each handover or cell reselection; determining (330, 510) a handover rate of the UE from two or more handovers or cell reselections, using the timestamps; comparing (330, 515) the handover rate to a threshold rate; operating in the standard mode and using (205, 520) the first pilot strength offset value when the handover rate does not meet or exceed the threshold rate; and operating in the HSM mode and using (340, 525) the second pilot strength offset value when the handover rate meets or exceeds the threshold rate. a processor; and a memory for storing executable instructions, wherein when the processor executes the instructions, the UE is caused to: initiate handover from a macrocell to a small cell within a hierarchical radio access network using a first pilot strength threshold value when the UE is operating in a standard mode; and initiate handover from the macrocell to the small cell using a second pilot strength threshold value when the UE is operating in a High Speed Mobility, HSM, mode, wherein the second pilot strength threshold value is equal to the first pilot strength threshold value modified by an HSM pilot strength threshold offset parameter that limits handover of the UE from the macrocell to the small cell when the UE is operating in the HSM mode; wherein the UE is configured to determine whether the UE should operate in the HSM mode by: storing (325, 505) historical information of handovers or cell-reselections, the information including a timestamp associated with each handover or cell reselection; determining (330, 510) a handover rate of the UE from two or more handovers or cell reselections, using the timestamps; comparing (330, 515) the handover rate to a threshold rate; operating in the standard mode and using (205, 520) the first pilot strength offset value when the handover rate does not meet or exceed the threshold rate; and operating in the HSM mode and using (340, 525) the second pilot strength offset value when the handover rate meets or exceeds the threshold rate. initiate handover from a macrocell to a small cell within a hierarchical radio access network using a first pilot strength threshold value when the UE is operating in a standard mode; and initiate handover from the macrocell to the small cell using a second pilot strength threshold value when the UE is operating in a High Speed Mobility, HSM, mode, wherein the second pilot strength threshold value is equal to the first pilot strength threshold value modified by an HSM pilot strength threshold offset parameter that limits handover of the UE from the macrocell to the small cell when the UE is operating in the HSM mode; storing (325, 505) historical information of handovers or cell-reselections, the information including a timestamp associated with each handover or cell reselection; determining (330, 510) a handover rate of the UE from two or more handovers or cell reselections, using the timestamps; comparing (330, 515) the handover rate to a threshold rate; operating in the standard mode and using (205, 520) the first pilot strength offset value when the handover rate does not meet or exceed the threshold rate; and operating in the HSM mode and using (340, 525) the second pilot strength offset value when the handover rate meets or exceeds the threshold rate.