Patent ID: 9674881
Date: 2017-06-06
CPC Classifications: H04W

Claim:
1. An apparatus, comprising: at least one processor; and at least one memory including computer program instructions, wherein the least one memory and the computer program instructions are configured to, with the at least one processor, cause the apparatus at least to process at a user equipment a received discovery sequence to determine a device to device communication state of at least one discovered user equipment, wherein the device to device communication state comprises an active state with ongoing device to device communication or a passive state without the ongoing device to device communication; determine whether the received discovery sequence corresponds to a cluster master, wherein when the discovery sequence of the at least one discovered user equipment corresponds to the cluster master, and wherein the apparatus receiving the discovery sequence is configured not to check for resource usage information for any other discovered user equipment; prepare a proximity communication request including information about the device to device communication state of at least one of the discovered user equipment or the resource usage information of the discovered user equipment, wherein the device to device communication state of the at least one discovered user equipment or the resource usage information of the discovered user equipment corresponds to the cluster master; and transmit the proximity communication request from the user equipment to a base station.