Abstract: A method may include determining, by a user device, an identifier to be used in a random access procedure to indicate a request for a positioning reference signal; selecting, by the user device, a downlink reference signal among a plurality of downlink reference signals received from a network node; controlling sending, by the user device to the network node, as part of a random access procedure, a random access preamble via a random access resource associated with the selected downlink reference signal, and the determined identifier; controlling receiving, by the user device from the network node, the requested positioning reference signal; and carrying out a positioning procedure using the requested positioning reference signal.

Abstract: In accordance with an example embodiment of the present invention, an apparatus comprises a first multiplier configured to convert a first frequency signal into a second frequency signal based at least in part on a first complex-valued local oscillator signal, a pair of low-pass filters configured to filter the second frequency signal, and a second multiplier configured to convert the filtered second frequency signal into a third frequency signal based at least in part on a second complex-valued local oscillator signal wherein the first frequency signal and the third frequency signal share the same frequency position and the pair of low-pass filters is configured based on an indication of allocated transmitted channels.

Abstract: In accordance with an example embodiment of the present invention, an apparatus comprises a first multiplier configured to convert a first frequency signal into a second frequency signal based at least in part on a first complex-valued local oscillator signal, a pair of low-pass filters configured to filter the second frequency signal, and a second multiplier configured to convert the filtered second frequency signal into a third frequency signal based at least in part on a second complex-valued local oscillator signal wherein the first frequency signal and the third frequency signal share the same frequency position and the pair of low-pass filters is configured based on an indication of allocated transmitted channels.