Patent ID: 9467267
Filing Date: 2016-10-11
CPC Classification: H04L,H04W

Claim Text:
1. A method of setting up a Proximity-based Service (ProSe) connection by a ProSe-enabled user equipment (UE) of a first Mobile Network Operator (MNO) in a cellular communication system, the method comprising: broadcasting a first message including first resource allocation information for a first radio resource of the first MNO by using a specific radio resource which is available to ProSe-enabled UEs of a second MNO and a third MNO; checking whether acknowledgement information regarding the first message is received from one or more ProSe-enabled UEs of the second MNO or the third MNO by using the first radio resource; broadcasting a second message including second resource allocation information for a second radio resource of the first MNO by using the specific radio resource when the acknowledgement information regarding the first message is received by using the first radio resource; receiving one or more ProSe connection requests as responses to the second message from the one or more ProSe-enabled UEs of the second MNO or the third MNO by using the second radio resource; and broadcasting the second message by using the specific radio resource again, if any collision between the second MNO and the third MNO is detected from the one or more ProSe connection requests.