A method performed by a radio device being configured for communications, comprising user traffic and/or signaling, on radio waves over a wireless radio link in a wireless communications system, said method comprising: - defining at least two radar excitation signals (502, 504) comprising a first radar excitation signal having: ∘ a first burst duration and a first sampling period; and a second radar excitation signal having: o a second burst duration and a second sampling period; wherein the first sampling period of the first radar excitation signal is configured for scanning a velocity range and the second sampling period of the second radar excitation signal is configured for scanning a portion of the velocity range, and the first burst duration is smaller than the second burst duration, wherein the sampling period of a radar excitation signal is a time spacing between consecutive time units or symbols comprising portions of the radar excitation signal; - embedding said at least two radar excitation signals (502, 504) into a frame structure for said wireless communications system, wherein at least one of said at least two radar excitation signals (502, 504) comprises user data and/or signaling; and - performing at least one transmission of the least two radar excitation signals (502, 504) embedded into the frame structure. - defining at least two radar excitation signals (502, 504) comprising a first radar excitation signal having: ∘ a first burst duration and a first sampling period; and a second radar excitation signal having: o a second burst duration and a second sampling period; wherein the first sampling period of the first radar excitation signal is configured for scanning a velocity range and the second sampling period of the second radar excitation signal is configured for scanning a portion of the velocity range, and the first burst duration is smaller than the second burst duration, wherein the sampling period of a radar excitation signal is a time spacing between consecutive time units or symbols comprising portions of the radar excitation signal; ∘ a first burst duration and a first sampling period; and a second radar excitation signal having: o a second burst duration and a second sampling period; wherein the first sampling period of the first radar excitation signal is configured for scanning a velocity range and the second sampling period of the second radar excitation signal is configured for scanning a portion of the velocity range, and the first burst duration is smaller than the second burst duration, wherein the sampling period of a radar excitation signal is a time spacing between consecutive time units or symbols comprising portions of the radar excitation signal; o a second burst duration and a second sampling period; wherein the first sampling period of the first radar excitation signal is configured for scanning a velocity range and the second sampling period of the second radar excitation signal is configured for scanning a portion of the velocity range, and the first burst duration is smaller than the second burst duration, wherein the sampling period of a radar excitation signal is a time spacing between consecutive time units or symbols comprising portions of the radar excitation signal; - embedding said at least two radar excitation signals (502, 504) into a frame structure for said wireless communications system, wherein at least one of said at least two radar excitation signals (502, 504) comprises user data and/or signaling; and - performing at least one transmission of the least two radar excitation signals (502, 504) embedded into the frame structure.