Patent ID: 8000735

Claim:
A wireless communications device, comprising: a first application central processing unit for performing layer two and layer three signaling protocol tasks, comprising a first local memory for storing application programs and layer two and layer three signaling protocol instructions; a second modem processing unit for performing layer one signaling protocol tasks, comprising a second embedded local memory for storing layer one signaling protocol instructions; and a memory transport unit for transporting a copy of data stored in a local memory of a source processing unit to a local memory of a destination processing unit using a message-based interface, where the source processing unit and destination processing unit do not share a common memory, where the memory transport unit generates a first message comprising a copy of data stored in the local memory of the source processing unit and a first local memory pointer to a local memory address for storing said data in the source processing unit such that a memory transport unit at a destination processing unit, in response to receiving the first message, stores a copy of the data in a local memory of the destination processing unit and generates a second message comprising a second local memory pointer to a local memory address of the data stored in the destination processing unit.