PHS MoU Document
B-IW0.00-03-TS
Title: Public Personal Handy-Phone System : General Description ofInterworking/Internetworking of Public PHS Network
Version: 03
Date: July 31, 1998
PHS MoU Classification: Unrestricted
List of contents:
1. General
1.1 Objectives of this document
1.2 Structure of interwork/internetwork series documents
2. Scope of current interwork/internetwork for Public PHS network
2.1 General
2.2 Interworking in the public PHS network
2.3 Internetworking with the other networks
3. Future directions
Annex A Glossary and Abbreviations

Number of pages: 8PHS MoU Group
c/o Association of Radio Industries and Businesses (ARIB)
14F, Nittochi Bldg., 4-1, Kasumigaseki 1-choume, Chiyoda-ku, Tokyo 100, Japan
TEL +81-3-5510-8599 FAX +81-3-3592-1103© PHS MoU Group1998

PHS MoU Document
B-IW0.00-03-TS
VersionHistory of Revised Versions
DateOutline

01

July 11, 1997 Established02

Dec. 19, 1997 Addition of network interworkings withISDN, PHS network and PSTN

03

July 31, 1998 Updated with regard to the adding IW4.00
document to PHS MoU IW series.

B-IW0.00-03-TS

Public Personal Handy-Phone System:
General Description of Interworking/Internetworking of Public PHS Network< Summary >1. Relation with International Standards
None2. Differences from ITU-T Recommendation
None
3. References
ITU-T Recommendations:
PHS MoU Documents:

I.5xx series
B-NWx.xx series, B-IF2.xx series and B- IF3.xx series

4. Items for Further Study
The roaming issues of the interworking between the public PHS network and D-PLMN are left forfuether study.

B-IW0.00-03-TS (1)B-IW0.00-03-TS

Public Personal Handy-Phone System:
General Description of Interworking/Internetworking of Public PHS NetworkContents
1 General .................................................................................................................................1
1.1 Objectives of this document ..................................................................................................1
1.2 Structure of interwork/internetwork series documents ..................................................12 Scope of current interwork/internetwork for public PHS network .......................................3
2.1 General ...........................................................................................................................3
2.2 Interworking in the public PHS network .......................................................................4
2.2.1 Objectives .......................................................................................................................42.2.2 General description and definition .........................................................................4
2.3 Internetworking with the other networks .......................................................................53 Future directions ...................................................................................................................7Annex A Glossary and Abbreviations .....................................................................................8

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1. General
1.1 Objectives of this document
This document describes the outlines of interworking/internetworking aspects for the public PHS network
based on the network models specified in the B-NWx.xx series documents. As described in B-NW0.00, thepublic PHS network models are characterized mainly by interworking with other networks, i.e., integration
with non-IN structured PSTN/ISDN network or IN structured PSTN/ISDN network, and internetworking
with other networks, i.e., the other public PHS networks, ISDN, PSTN, D-PLMN and so on.
The objectives of this document are to define the relationship related to signalling protocol and services
aspects required for the provision of these interworking/internetworking in the public PHS network.
1.2 Structure of interwork/internetwork series documents
This subclause describes the general information about B-IWx.xx series documents of PHS MoU group.
Figure1-1 indicates the organization of B-IWx.xx series and the other related documents. The Current BIWx.xx series documents are structured as follows.
B-IW0.00 : General Description of Interworking/Internetworking of Public PHS Network
This document describes the general information, outlines of the interworking/internetworking of
the public PHS network.
B-IW0.01 : Definition and General Principles for Public PHS Network Interworking /Internetworking
This document describes the definition and general principles for public PHS network
interworking/internetworking based on ITU-T recommendation I.510.
B-IW1.00 : General Description of interworking in the Public PHS Network
This document describes the general information, outlines of B-IW1.xx series documents.
B-IW1.01 : Interworking between public PHS wireless access part operating at bit rates up to 64kbit/s and
64kbit/s-based ISDN part of public PHS network
This document describes the general arrangements required for interworking functions between
a public PHS wireless access part and a public PHS ISDN in the public PHS network based onITU-T Recommendation I.525.
B-IW1.02 : Signalling interworking between IF2 and IF3
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1

This document describes the relationship required for interworking between IF2 and IF3 in the public
PHS network based on ITU-T Recommendation Q.699.
B-IW2.00 : Network Interworking between a Public PHS Network andan ISDN and between Public PHS Networks
This specification describes the information handling, the configuration and interworking
functions for network interworking between a public PHS network and an ISDN, and between
public PHS networks based on ITU-T Recommendation I.520.
B-IW3.00 : Network Interworking between a public PHS Network and a Public Switched Telephone
Network (PSTN)
This specification describes the internetworking configuration and network characteristics
between a public PHS network and a public switched telephone network (PSTN) based on ITUT Recommendation I.530.
B-IW4.00 : Interworking between networks operating at bit rates less than 64kbit/s with public PHS network
This specification describes the internetworking configuration and network characteristics
between a public PHS network and the other network operating at bit rates less than 64kbit/s
based on ITU-T Recommendation I.525. This document also includes interworking with DPLMN as one of the applications.

2

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General
level

PPN

Interworkingreference
configuration

IW0.00IW0.01

Interworking scenarios

Scenario
level

I.515*1
I.511*1
Parameter
Layer1interworking exchange

IW1.00I/W
GeneralIW2.00PPNISDN

IW3.00PPNPSTN

IW4.00
PPND-PLMNInterworking functional requirements
Functional
level

I.515*1

IW1.01IW2.00

IW3.00

IW4.00Signalling protocols at the reference points IF3(Kx) and IF3(Nx)Protocollevel

IW1.02IF3.xx&IF4.xx
series

IW1.02IF3.xxseries

IF3.xxseries

Note 1 : I/W = Interworking service
Note 2 : PPN = Public PHS Network
Note 3 : *1 marked specifications and the other interworking scenarios are for further study.

Figure 1-1/B-IW0.00 Organization of Public PHS Network IW series specifications

B-IW0.00-03-TS3

2. Scope of current interwork/internetwork for public PHS network
2.1 General
This subclause specifies the scope of this document. The scope of this document is shown in the area
which is covered with dotted lines in Figure 2-1/B-IW0.00.
Public PHS Network

IF1
PS

IF4

IF2

SCP

SCPPSC

Public PHS Network

CSISDN
IF3PSTND-PLMN

Figure 2-1/B-IW0.00 Network reference model for the interworking and internetworking of Public PHS Network
The interworking between the PSC and the SCP (including roaming between networks via IF4) is out of
the scope of this document. The interface specifications for each IF are specified in the PHS MoU
documents B-IF series.
2.2 Interworking in the public PHS network
2.2.1 Objectives
The public PHS network consists of various network systems using several protocols, and various bearer
services are supported by each network system. The objectives of this subclause are to clarify the internal
behavior of the public PHS network by specifying the interworking/internetworking protocols of thepublic PHS network.
2.2.2 General description and definition
The public PHS network consists of the public CS, the SCP and the PSC. The public CS controls radio
access interface between the public CS and the PS. The SCP contains location information of the PS andperforms user authentication functions. The PSC provides switch functions connecting to the public CSs as
a local exchange by accessing the location data of the PS in the SCP. The PSC also performs as a transit
4B-IW0.00-03-TS

exchange which is interworking with the other PSC. The public CS and the PSC are connected via the IF2interface. The IF2 interface is a 64kbit/s ISDN UNI which is based on the ITU-T Recommendation Q.931
with several modifications for the provision of PHS services. The PSC is connected to the other PSC via
the IF3 interface. The IF3 interface is an ISDN NNI (Signalling System No.7) which is specified in theITU-T Recommendation Q.760 series. The detailed specifications of these interfaces and protocols aredescribed in the PHS MoU documents B-IW1.xx series.
Public PHS NetworkSCP

IF2PSCSIF3PSC

PSC

Figure 2-2/B-IW0.00 Interworking in the Public PHS Network
2.3 Internetworking with the other networks
1) Internetworking between Public PHS networks
A Public PHS network is internetworking with the other Public PHS network through the IF3 interface. As
for the IF3 interface, refer to PHS MoU documents, B-IF3 series.
2) Internetworking with Public PHS network, ISDN and PSTN
A Public PHS network is internetworking with ISDN/PSTN through the IF3 interface. As for the IF3interface, refer to PHS MoU documents, B-IF3 series.

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5

Public PHS Network
SCPIF3PSC
PS

Public PHS Network

CS
ISDN
PSTN

D-PLMN

Figure 2-3/B-IW0.00 Internetworking in the Public PHS Network
3. Future directions
The roaming issues of the interworking between the public PHS network and D-PLMN are left for further
study.

6

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Annex A Glossary and Abbreviations
This annex forms an integral part of this document.
Glossary***A******B******C******D******E******F******G******H******I******J******K******L******M******N******O******P******Q******R******S******T******U******V******W******X******Y******Z***

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7

Abbreviations

CS

Cell Station

ISDN

Integrated Service Digital Network

PHS

Personal Handy-Phone System

D-PLMN

Digital Public Land Mobile Network

PS

Personal Station

PSC

PHS Switching Center

PSTN

Public Switched Telephone Network

SCP

Service Control Point8

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