Patent ID: 6597683
Filing Date: 2003-07-22
Classification: H04L,H04W,Y02D

Abstract:
A method for transmitting data between a master device and a plurality of slave devices in Medium Access Control protocol messages comprising:transmitting an ALOHA message from said master device to said plurality of slave devices; transmitting a data link request message from a one of said plurality of slave devices acting as a source slave device to said master device requesting a data transmission to a second of said plurality of device acting as a target slave device; verifying an on-line state of said source slave device by said master device in response to receiving said data link request in said master device; verifying a on-line state of said target slave device responsive to receiving said data link message; transmitting a service link request to said target slave device from said master device in response to a verification said target slave device is in an on-line state; receiving an acknowledgement message from said target slave device in said master device in response to said service request link; assigning a data slot to said source device in response to a verification said source device is in an on-line state and receiving said acknowledgement message from said target slave device; transmitting said data slot to said source device in response to assigning said data slot; and updating a master table in said master device indicating said source slave device is in an engaged state responsive to said assigning of said data slot.