TIA TIA/EIA-732-400

Abstract

<strong>Introduction</strong> <br>This Part summarizes the protocols used across the CDPD Airlink. Details of these protocols may be found in Part 401 through Part 409, which follow. <br>Communications between the Mobile End System (M-ES) and the Mobile Data Base Station (MDBS) occur at the physical and Media Access Control (MAC) protocol layers. These layers are described in Part 401 and Part 402, respectively. <br>Communications between the M-ES and the Mobile Data Intermediate System (MD-IS) occur at the Logical Link Control (LLC) and subnetwork convergence protocol layers. These layers are described in Part 403 and Part 404, respectively. <br>Radio Resource Management (RRM) procedures are performed at the physical, MAC and LLC protocol layers. These procedures are collectively responsible for maintaining communications while the M-ES moves between cells and between the serving areas of different MD-ISs. Part 405 describes the RRM procedures. <br>Security functions across the Airlink are described in Part 406. <br>Physical performance requirements across the Airlink are described in Parts 408 and 409.