In view of this, embodiments of the present disclosure provide a method, apparatus, device and system for sending device discovery signals so as to at least solve the problems described above existing in the prior art.

In order to achieve the purpose described above, technical schemes of the embodiments of the present disclosure are implemented as follow:

An embodiment of the present disclosure provides a method for sending device discovery signals, which includes:

acquiring configuration information indicating discovery resources for device discovery;

determining at most one discovery resource element for sending the device discovery signals in a discovery resource period indicated by the configuration information, the discovery resource element being obtained by dividing radio resources in the discovery resource period in a manner of time division multiplexing and/or frequency division multiplexing; and

sending the device discovery signals on the determined discovery resource element.

The embodiment of the present disclosure further provides an apparatus for sending device discovery signals, which includes:

a first communication unit arranged to receive configuration information indicating discovery resources for device discovery;