TIA TIA-2001.4-D

This standard provides the specification for the interface whichcoincides with the Reference Point “A” defined in the TR45 NetworkReference Model shown in [25] and with Reference point 48 asdefined in the Network Reference Model shown in [28]. The scope ofthis standard includes the following topics:

• Descriptions of the specified functional capabilities thatprovide wireless telecommunications services across the A1interface as defined in the TR45 Network Reference Model;

• Descriptions of the division of responsibility of thefunctions provided between the BS and the MSC, without prescribingspecific implementations;

• Descriptions of the A1 interface standard that support DS-41[7] and cdma2000^®1 systems.

• Descriptions of the specified functional capabilities thatprovide circuit services across the packet transport based MSCe-BS(A1p) and MGW-BS (A2p) interfaces as defined in the NetworkReference Model shown in [28]. It should be noted that, for a givencall, the transcoder may or may not be in the MGW or BS. Thisprotocol definition is not limited by the location or existence ofthe transcoder in the bearer path.

• Descriptions of the division of responsibility of thefunctions provided between the BS and the MSCe and MGW withoutprescribing specific implementations.

Purpose

This document contains the message procedures, bitmaps,information elements, and timers used to define the A1 and A1pinterfaces. In this document, “MSC” refers to either acircuit-switched MSC or a packet-based MSC emulator (MSCe). Insituations where a statement applies to either the circuit-switchedor packet-based MSC exclusively, the type of MSC will bespecifically identified (i.e. “circuit-switched MSC” or “MSCe”).For signaling, the term MSC refers to either a circuit-switched MSCor an MSCe. For bearer path, the term MSC refers to either acircuit-switched MSC or a MGW. A1 messages are used by both the A1and A1p interfaces except where indicated.

¹ cdma2000^® is the trademark for thetechnical nomenclature for certain specifications and standards ofthe Organizational Partners (OPs) of 3GPP2. When applied to goodsand services, the cdma2000® mark certifies their compliance withcdma2000^® standards. Geographically (and as of the dateof publication), cdma2000^® is a registered trademark ofthe Telecommunications Industry Association (TIA-USA) in the UnitedStates.

Edition:

D

Published:

07/01/2007

Number of Pages:

488

File Size:

1 file , 2.8 MB