PUSH-TO-X OVER CELLULAR COORDINATED FLOOR AND PACKET SCHEDULING

摘要

This coordinated floor and packet scheduling for Push-to-X over Cellular (PoC) services delays a packet data slot assignment until after a PoC floor has been granted ( 272 ) by a PoC server ( 251 ). By reducing the time period between slot assignment and floor grant, this method reduces the wasting of packet data network resources while the communication device ( 211 ) is waiting for a PoC floor grant. Setting up a Push-to-X over Cellular (PoC) call session includes an originating communication device ( 211 ) transmitting a PoC floor request message ( 270 ) to a PoC server ( 251 ), the PoC server ( 251 ) sending a PoC floor grant message ( 272 ) with treatment type "floor grant" to a packet control function, ( 232 ), the packet control function ( 232 ) assigning packet data slots to the originating communication device and setting up an active packet data session ( 280 ), and communicating a PoC floor grant and packet data slot assignment message ( 285 ) to the originating communication device ( 211 ).