Overview of Standards for services and signalling in broadband
PISNs
Based on experience in developing the QSIG series of Standards, Ecma has
developed a corresponding signalling system for use in Broadband Private
Integrated Services Network (B-PISNs) employing Asynchronous Transfer
Mode (ATM) technology. B-QSIG (signalling system for use at the Q reference
point in broadband networks) operates at the Q reference point between
Private Integrated Services Network Exchanges (PINXs) connected together
within a B-PISN employing ATM. B-QSIG currently comprises the following
Ecma Standards:
| ECMA-265 (B-QSIG-SAAL) |
Broadband Private Integrated
Services Network (B-PISN) - Inter-Exchange Signalling Protocol - Signalling
ATM Adaptation Layer
This specifies the Signalling ATM Adaptation Layer (AAL) protocol,
on top of which the basic call/connection control protocol runs. |
| ECMA-266 (B-QSIG-BC) |
Broadband Private Integrated
Services Network (B-PISN) - Inter-Exchange Signalling Protocol - Basic
Call/Connection Control
This specifies the basic call/connection control protocol. |
| ECMA-261 (B-BCSD) |
Broadband Private Integrated
Services Network (B-PISN) - Specification, Functional Model and Information
Flows - Broadband Connection Oriented Bearer Service
This defines the broadband connection-orientated bearer service
for which signalling support is provided in the basic call/connection
control protocol. |
| ECMA-252 (B-QSIG-TC) |
Broadband Private Integrated
Services Network (B-PISN) - Inter-Exchange Signalling Protocol - Transit
Counter Additional Network Feature
This extends the basic call/connection control protocol by
providing a transit counter feature for loop avoidance. |
| ECMA-254 (B-QSIG-GF) |
Broadband Private Integrated
Services Network (B-PISN) - Inter-Exchange Signalling Protocol - Generic
Functional Protocol
This extends the basic call/connection control protocol by
providing generic support for supplementary services and additional
network features. |
| ECMA-294 |
B-ISDN and B-PISN - Digital
Subscriber Signalling System No. two (DSS2), Broadband Inter-Exchange
Signalling (B-QSIG), and Signalling System No. 7 (SS7) - Call Control in
a Separated Call and Bearer Control Environment - Part 1: Protocol Specification |
| ECMA-295 |
B-ISDN and B-PISN - Digital
Subscriber Signalling System No. two (DSS2), Broadband Inter-Exchange
Signalling (B-QSIG), and Signalling System No. 7 (SS7) - Call Control
in a Separated Call and Bearer Control Environment - Part 2: Protocol
Implementation Conformance Statement (PICS) Proforma Specification |
| ECMA-296 |
B-ISDN and B-PISN - Digital
Subscriber Signalling System No. two (DSS2), Broadband Inter-Exchange
Signalling (B-QSIG), and Signalling System No. 7 (SS7) - Prenegotiation
- Part 1: Protocol Specification |
| ECMA-297 |
B-ISDN and B-PISN - Digital
Subscriber Signalling System No. two (DSS2), Broadband Inter-Exchange
Signalling (B-QSIG), and Signalling System No. 7 (SS7) - Prenegotiation
- Part 2: Protocol Implementation Conformance Statement (PICS) Proforma
Specification |
| ECMA-298 (B-QSIG-SBC) |
Broadband Private Integrated
Services Network (B-PISN) - Inter-Exchange Signalling Protocol - Separated
Bearer Control |
During the development of these Standards, Ecma has worked in cooperation
with the ATM Forum with a view to achieving alignment, where appropriate,
between B-QSIG and the signalling part of the ATM Forum's Private Network-Network
Interface (PNNI) specification. Whereas the PNNI specification provides
automatic configuration and dynamic source routeing, B-QSIG is intended
for networks that employ static hop-by-hop routeing. The basic call/connection
control protocol (ECMA-266)
makes reference to the signalling section of PNNI version 1.0 and specifies
the differences, which arise from the different field of application. Material
from other Ecma Standards in the series (e.g. ECMA-254) is
being contributed to the ATM Forum with a view to making corresponding
enhancements to the PNNI specification.
ECMA-265 and ECMA-266
are in complete alignment with corresponding International Standards
published by ISO/IEC
. Other Ecma Standards
in this series are being contributed to ISO/IEC
JTC 1 as proposed International
Standards.
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