TIA/EIA-732-400:2001

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Cellular Digital Packet Data (CDPD) System Specification Overview of the Airlink

Published By	Publication Date	Number of Pages
TIA	2001	20

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Description

Introduction

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.

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.

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.

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.

Security functions across the Airlink are described in Part
406.

Physical performance requirements across the Airlink are
described in Parts 408 and 409.

Additional information