Discovery of Proximity Services in Cellular System

摘要

This document discloses a solution for employing proximity discovery devices to carry out discovery of terminal devices registered to proximity services. The proximity discovery device is provided with an identifier that is unique for the discovery procedure, and the proximity discovery device transmits its unique identifier in a discovery signal. Terminal devices registered to the proximity services and detecting the discovery signal indicate their presence to the proximity discovery devices. The proximity discovery device then creates a discovery reports on the basis of the contact(s) from the terminal device(s) and transmits the discovery report to a network element of a cellular communication system managing the proximity services.

主权项

1. A method for carrying out a discovery procedure in a proximity discovery device connected to a cellular communication system, the method comprising:
acquiring discovery configuration from a network element, wherein the discovery configuration dedicates the proximity discovery device to discover and report to the network element terminal devices registered to a proximity service and located in a coverage area of the proximity discovery device; after acquiring the discovery configuration, causing transmission of a discovery signal comprising an identifier of the proximity discovery device, that is dedicated exclusively to the proximity discovery procedure; receiving at least one message from at least one terminal device of the cellular communication system in response to the discovery signal, wherein the message comprises an identifier of the terminal device; creating, on the basis of the at least one message received from the at least one terminal device, a discovery report and causing transmission of the discovery report to the network element.