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AssigneeMotorola, Inc.
InventorsDale R. Buchholz, Thomas A. Freeburg, Hungkun J. Chang, Michael P. Nolan, Paul Odlyzko, James D. McGrath, William K. Doss, Farzad Farhangnia, Mark Taylor, Jeffrey W. Manning
Estimating the term…
In a wireless TDMA network a control module (CM) sends a time stamp relative to the beginning of its frame in a synchronization packet allowing each of a plurality of user modules (UM) to maintain synchronization relative to the CM. The CM uses a plurality of directional antennas and transmits the synchronization packets over each antenna over a predetermined number of frames. The UMs use a receive time stamp to identify the beginning of a received synchronization packet. The difference between the time stamps combined with a delay constant is used by the UMs to adjust time synchronization to the CM frame.
In a wireless, time division multiplexed system having a control module (CM) and a plurality of user modules (UM) which communicate by transmitting and receiving packets at time slots within a frame, a method for synchronizing a UM frame with a CM frame comprising the steps of:
In a wireless, time division multiplexed system having a control module (CM) and a plurality of user modules (UM) which communicate by transmitting and receiving packets at time slots within a frame, a method for synchronizing a UM frame to a CM frame comprising the steps of:
A user module (UM) capable of wireless transmission and reception of packets in a frame, to and from a control module (CM) comprising:
Dependencies are inferred from the claim text.