TIA-2001.1-E-3:2012

This standard provides the specification for the interfaces
which coincide with the Refe rence Points "A", "Ater", "Aquater",
and "Aquinter" defined in the 3GPP2 Wireless Network Reference
Model shown in [I-1] and Reference Points 27 and 48 for Legacy MS
Support [18].

The scope of this standard includes the following topics:

• MSC-BS and BS-BS interfaces:

– descriptions of the specified functional capabilities that
provide wireless telecommunications services across the MSC-BS and
BS-BS interfaces as defined in the 3GPP2 Wireless Network Reference
Model

– descriptions of the specified functional capabilities
that provide wireless tele communications services across the
MSCe-BS and the MGW-BS interfaces;

– descriptions of the division of responsibility of the
functions provided between the BS and the MSC, and between the
source BS and the target BS, without prescribing specific
implementations;

– descriptions of the MSC-BS interface and the BS-BS
interface standards that support DS-41 and cdma2000 systems.

• BS-PCF interfaces:

– descriptions of the specified functional capabilit ies that
provide packet data services across the BS-PCF interface;

– descriptions of the division of responsibility of the
functions provided between the BS and the PCF without prescribing
specific implementations.

• PCF-PDSN interfaces:

– descriptions of the specified functional capabilit ies
that provide packet data services across the PCF-PDSN
interface;

– descriptions of the division of responsibility of the
functions provided between the PCF and the PDSN without prescribing
specific implementations.

The interfaces defined in this s tandard are specified by a set
of characteristics, including:

• physical and electromagnetic parameters;

• channel structures;

• message types and contents;

• network operating procedures;

• user data framing and transport.

Purpose

The purpose is to provide the standard for:

• interfacing a circuit-switched MSC with one or more
BSs,

• interfacing an MSCe with one or more BSs,

• interfacing an MGW with one or more BSs,

• interfacing a BS with one or more BSs,

• interfacing a PCF with one or more BSs,

• interfacing one or more PDSNs with one or more PCFs.

This document defines the functional capabilities, including
services and features, of the specified interfaces. These services
and features are the defining characteristics that are the basis
for the overall system standard.

The MSC-BS interface provides telecommunications services access
between a Mobile Switching Center and a base station. It
specifically represents the demarcation point between the MSC and
the BS which coincides with the Reference Point "A". This point
establishes the technical interface and designates the test points
and operational division of responsibility between the MSC and the
BS. The MSC and BS interface is defined as the A1/A2/A5 interface
shown in Figure 2.2-1.

This standard fulfills the following criteria:

• supports current [1]~[6], [7] and [10] air interfaces;

• makes maximum use of existing standards from the TIA and other
sources;

• promotes reliability enhancement, technical innovation and
network product availability;

• allows connection of various manufacturers' BSs to the same
MSC;

• supports future MSC and BS implementations;

• allows the separate evolution of MSC and BS technology.

The BS-MGW interface provides a bearer for traffic between a BS
and an MGW. The BS and MGW interface, defined as the A2p interface
(Reference Point 27), is shown in Figure 2.2-2.

The source BS – target BS interface provides for inter-BS
soft/softer handoffs. It specifically represents the demarcation
point between two BSs which coincides with the Refe rence Point
"Ater". This point establishes the technical interface and
designates the test points and operational division of
responsibility between the source BS and target BS. The source BS
and target BS interface is defined as the A3/A7 interface shown in
Figure 2.2-1 and Figure 2.2-2.

The BS-PCF interface provides access between the BS and the
Packet Control Function for high speed packet data services. It
specifically represents the demarcation point between the BS and
the PCF which coincides with the Reference Point "A quinter". This
point establishes the technical interface and designates the test
points and operational division of responsibility between the BS
and the PCF. The BS-PCF interface is defined as the A8/A9 interface
shown in Figure 2.2-1 and Figure 2.2-2.

The PCF-PDSN interface provides access between a Packet Control
Function and a Packet Data Serving Node for high speed packet data
services. It specifically represents the demarcation point between
the PCF and the PDSN which coincides with the Refe rence Point
"Aquater". This point establishes the technical interface and
designates the test points and operational division of
responsibility between the PCF and the PDSN. The PCF-PDSN interface
is defined as the A10/A11 interface shown in Figure 2.2-1 and
Figure 2.2-2.

The PCF-PDSN interface definition fulfills the following
criteria:

• allows connection of various manufacturers' PCFs to the same
PDSN and vice versa;

• makes maximum use of existing standards from the Internet
Engineering Task Force (IETF) and other sources;

• promotes quality of service and accounting information
exchange between the PCFs and the PDSNs;

• promotes reliability enhancement, technical innovation and
network product availability;

• supports future PCF and PDSN implementations;

• allows the separate evolution of PCF and PDSN
technologies.

Published Code	TIA
Published By	Telecommunication Industry Association
Publication Date	2012
Pages Count	36
Language	English
File Size	4.1 MB