TIA-1138

Description / Abstract: Scope of This Document

This specification applies to High Rate Packet Data Revision A and Revision B compliant accessterminals and access networks which are enhanced to support the E-UTRAN and HRPDinterworking.

These requirements ensure that a compliant access terminal can obtain interworking servicethrough any access network conforming to this standard. These requirements do not addressthe quality or reliability of that service, nor do they cover equipment performance ormeasurement procedures.

This specification is primarily oriented toward requirements necessary for the design andimplementation of access terminals. As a result, detailed procedures are specified for accessterminals to ensure a uniform response to all access networks. Access network procedures,however, are specified only to the extent necessary for compatibility with those specified for theaccess terminal.

This specification includes provisions for future service additions and expansion of system capabilities. The architecture defined by this specification permits such expansion without the loss of backward compatibility to older access terminals.