Patent ID: 8812042
Filing Date: 2014-08-19
Classification: H04W

Abstract:
1. A method for recovering a floor interrupted by a first PoC client in a PoC (Push to talk over Cellular) system, the method comprising: receiving, from a second PoC client, by the first PoC client, a portion of a first media, the first media to be transmitted to the first PoC client by the second PoC client; sending, by the first PoC client, a floor request message to a PoC server upon request for media transmission from a PoC user while receiving the portion of the first media, wherein when the floor request message is received, the PoC server sends a media burst suspend message to interrupt the second PoC client currently sending the first media; upon receipt of a media burst confirm message from the PoC server, sending, by the first PoC client, a second media to all other PoC clients participating in a PoC session including the second PoC client prior to receiving a remaining portion of the first media from the second PoC client; if the second media is completely sent from the first PoC client, sending, by the first PoC client, a media burst complete message to the PoC server so that the PoC server can send a media burst confirm message to the second PoC client to allow the second PoC client to send the remaining portion of the first media; and receiving, by the first PoC client, the remaining portion of the first media from the second PoC client, wherein the media burst suspend message is sent to the second PoC client so that the second PoC client is prevented from sending any media until the second PoC client receives a media burst confirm message.