Method, apparatus and system for D2D communication

摘要

Method, apparatus and system for D2D communication are provided. The method includes: a first user equipment receives configuration message(s) from a network, wherein the configuration information about D2D discovery signal(s) is carried in the configuration message(s); the first user equipment detects D2D discovery signal(s) from a second user equipment according to the configuration information carried in the configuration message(s); the first user equipment transmits a request message to the network according to the result of the detection to acquire the identity of the second user equipment transmitting the detected D2D discovery signal; and the first user equipment receives a response message returned from the network, wherein the identity of the second user equipment or rejection information indicating the rejection to the discovery of the second user equipment by the first user equipment is carried in the response message. The present disclosure addresses the problem of the peer discovery of D2D incorporated in a cellular communication system.

主权项

1. A apparatus for Device-to-Device (D2D) communication, the apparatus located in a first user equipment, comprising:
a first receiving module, configured to receive configuration message(s) from network, wherein configuration information about D2D discovery signal(s) is carried in the configuration message(s); a detection module, configured to detect D2D discovery signal(s) from a second user equipment according to the configuration information carried in the configuration message(s); a transmitting module, configured to transmit a request message to the network according to the detection of the detection module, wherein the request message is used to acquire the identity of the second user equipment transmitting the detected D2D discovery signal(s); and a second receiving module, configured to receive a response message sent from the network, wherein the identity of the second user equipment or rejection information indicating the rejection to the discovery of the second user equipment by the first user equipment is carried in the response message; wherein configuration information about D2D discovery triggering signal(s) is also carried in the configuration message(s); and the transmitting module is also configured to transmit the D2D discovery triggering signal(s) after the first receiving module receives the configuration message(s) and before the detection module detects the discovery signal, wherein the D2D discovery triggering signal(s) is used to trigger the second user equipment which receives the D2D discovery triggering signal(s) and has a peer discovery requirement to transmit the D2D discovery signal(s); wherein the configuration information of the D2D discovery triggering signal(s) comprises: a discovery triggering signal set indicating available D2D discovery triggering signals, and/or resource configuration parameter(s) indicating the time-domain sub-frame(s) and/or the frequency-domain resource block(s) used for the D2D discovery triggering signal(s) transmission.