Method, equipment, device and system for sending device detection signal

A method for sending device discovery signals, the method comprising:

• determining configuration information indicating discovery resources for device discovery;
• the configuration information indicating periodic discovery resources, discovery resource elements being obtained by dividing radio resources in the discovery resource period in a manner of time division multiplexing and/or frequency division multiplexing, and the discovery resource elements being used by a user equipment to send the device discovery signals;
• and
• sending the configuration information;
• wherein there is a mapping relationship between the discovery resource elements of adjacent discovery resource periods;
• and
• the mapping relationship is used to determine the discovery resource elements for sending the device discovery signals in a current discovery resource period according to positions of the discovery resource elements which send the device discovery signals in a preceding discovery resource period of the current discovery resource period and the mapping relationship.

A apparatus for sending device discovery signals, the apparatus comprising:

• a first communication unit arranged to receive configuration information indicating discovery resources for device discovery;
• a central processing unit arranged to determine discovery resource elements for sending the device discovery signals in a discovery resource period indicated by the configuration information according to the configuration information, the discovery resource elements being obtained by the central processing unit dividing radio resources in the discovery resource period in a manner of time division multiplexing and/or frequency division multiplexing;
• and
• a second communication unit arranged to send the device discovery signals in the discovery resource elements;
• wherein
• the central processing unit is arranged to establish a mapping relationship of the discovery resource elements between adjacent discovery resource periods;
• and determine the discovery resource elements for sending the device discovery signals in a current discovery resource period according to positions of the discovery resource elements which send the device discovery signals in a preceding discovery resource period of the current discovery resource period and the mapping relationship.

A apparatus for sending device discovery signals, the apparatus comprising:

• a configuration unit arranged to determine configuration information indicating discovery resources for device discovery;
• a sending unit arranged to send the configuration information, the configuration information indicating periodic discovery resources, discovery resource elements being obtained by dividing radio resources in the discovery resource period in a manner of time division multiplexing and/or frequency division multiplexing, and the discovery resource elements being used by a user equipment to send the device discovery signals;
• wherein there is a mapping relationship between the discovery resource elements of adjacent discovery resource periods;
• and
• the mapping relationship is used to determine at most one discovery resource element for sending the device discovery signals in a current discovery resource period according to positions of the discovery resource elements which send the device discovery signals in a preceding discovery resource period of the current discovery resource period and the mapping relationship.