TIA TIA-2001.1-E

This standard provides the specification for the interfaceswhich coincide with the Reference Points “A”, “A_ter“,”A_quater“, and “A_quinter” defined in the TR45Network Reference Model shown in [18] and Reference Points 27 and48 for Legacy MS Support [19].

The scope of this standard includes the following topics:

• MSC-BS and BS-BS interfaces:

— descriptions of the specified functional capabilities thatprovide wireless telecommunications services across the MSC-BS andBS-BS interfaces as defined in the TR45 Network ReferenceModel;

— descriptions of the specified functional capabilities thatprovide wireless telecommunications services across the MSCe-BS andthe MGW-BS interfaces;

— descriptions of the division of responsibility of thefunctions provided between the BS and the MSC, and between thesource BS and the target BS, without prescribing specificimplementations;

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

• BS-PCF interfaces:

— descriptions of the specified functional capabilities thatprovide packet data services across the BS-PCF interface;

— descriptions of the division of responsibility of thefunctions provided between the BS and the PCF without prescribingspecific implementations.

• PCF-PDSN interfaces:

— descriptions of the specified functional capabilities thatprovide packet data services across the PCF-PDSN interface;

— descriptions of the division of responsibility of thefunctions provided between the PCF and the PDSN without prescribingspecific implementations.

The interfaces defined in this standard are specified by a setof 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, includingservices and features, of the specified interfaces. These servicesand features are the defining characteristics that are the basisfor the overall system standard.

The MSC-BS interface provides telecommunications services accessbetween a Mobile Switching Center and a base station. Itspecifically represents the demarcation point between the MSC andthe BS which coincides with the Reference Point “A”. This pointestablishes the technical interface and designates the test pointsand operational division of responsibility between the MSC and theBS. The MSC and BS interface is defined as the A1/A2/A5 interfaceshown in Figure 2.2-1.

The MSCe-BS interface provides telecommunications servicesaccess between an MSCe and a BS. It specifically represents thedemarcation point between the MSCe and the BS, which coincides withthe Reference Point 48 [19]. This point establishes the technicalinterface and designates the test points and operational divisionof responsibility between the MSCe and the BS. The MSCe and BSinterface is defined as the A1p interface shown in Figure2.2-2.

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 othersources; 

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

• allows connection of various manufacturers’ BSs to the sameMSC; 

• 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 BSand 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-BSsoft/softer handoffs. It specifically represents the demarcationpoint between two BSs which coincides with the Reference Point”A_ter“. This point establishes the technical interfaceand designates the test points and operational division ofresponsibility between the source BS and target BS. The source BSand target BS interface is defined as the A3/A7 interface shown inFigure 2.2-1 and Figure 2.2-2.

The BS-PCF interface provides access between the BS and thePacket Control Function for high speed packet data services. Itspecifically represents the demarcation point between the BS andthe PCF which coincides with the Reference Point”A_quinter“. This point establishes the technicalinterface and designates the test points and operational divisionof responsibility between the BS and the PCF. The BS-PCF interfaceis defined as the A8/A9 interface shown in Figure 2.2-1 and Figure2.2-2.

The PCF-PDSN interface provides access between a Packet ControlFunction and a Packet Data Serving Node for high speed packet dataservices. It specifically represents the demarcation point betweenthe PCF and the PDSN which coincides with the Reference Point”A_quater“. This point establishes the technicalinterface and designates

the test points and operational division of responsibilitybetween the PCF and the PDSN. The PCF-PDSN interface is defined asthe A10/A11 interface shown in Figure 2.2-1 and Figure 2.2-2.

The PCF-PDSN interface definition fulfills the followingcriteria:

• allows connection of various manufacturers’ PCFs to the samePDSN and vice versa;

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

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

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

• supports future PCF and PDSN implementations;

• allows the separate evolution of PCF and PDSNtechnologies.

Edition:

E

Published:

01/01/2010

Number of Pages:

32

File Size:

1 file , 3.2 MB