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TIA-1135

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TIA-1135 2009 Edition, January 1, 2009 Inter-Technology Handoff for Ultra Mobile Broadband (UMB) Radio Access Network Interfaces

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Description / Abstract: This document provides an interoperability specification between a RAN that supports UMB, the AT and other access technologies. This document contains message procedures and formats necessary to obtain this interoperability.

Purpose

The purpose of this document is to provide a standard and call flows for inter-technology handoff between UMB and other access technologies. The protocols and procedures in this specification assume that the access terminal (AT) is capable of being logically associated with multiple access technologies simultaneously but may not be able to transmit simultaneous in different access technologies. The specification allows for initial setup of the target radio access network prior to over-the-air handoff thus reducing the interruption in real-time services. Handoff of ATs with only delay-tolerant applications may not require the protocols and procedures in this specification.