USE OF TDM PSEUDO-WIRES FOR AN EFFICIENT NGN EMULATION OF ISDN MULTI-CHANNEL CIRCUIT-MODE BEARER SERVICES
Keywords:
Multi-channel service, ISDN bearer, NGN, Pseudo-wireAbstract
The specifications of the Next Generation Networks (NGN) agree on the need for migration mechanisms that enable the replacement of traditional networks, highlighting the ISDN networks. This requirement has a notable impact on NGN in terms of network design. Recent solutions proposed by ITU-T and ETSI for ISDN migration only include support for a subset of current ISDN services, not covering in detail the multi-channel circuit-mode bearer services. This paper examines the use of TDM pseudowires for NGN emulation of ISDN multi-channel calls between ISDN terminals, proposing new payload types.
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References
ETSI TR 180 001 v1.1.1. "Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN); NGN Release 1; Release definition". (03/06).
ITU-T Y.2201. "NGN release 1 requirements". (04/07).
ITU-T Y.2000 Suplement 1. "Supplement on NGN release 1 scope". (07/06).
ITU-T Y.2006. "Description of capability set 1 of NGN release 1". (02/08).
ITU-T Y.2262. "PSTN/ISDN emulation and simulation". (12/06).
ETSI ES 282 002. "Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN); PSTN/ISDN Emulation Sub-system (PES); Functional architecture". (1/06).
ETSI SR 002 211. "List of standards and/or specifications for electronic communications networks, services and associated facilities and services; in accordance with Article 17 of Directive 2002/21/EC". (2/04).
The European Parliament and the council of the European Union. "Directive 2002/22/EC of the European Parliament and of the Council". Directive 2002/22/EC. (03/02).
ETSI EG 201 973-2. "Access and Terminals (AT); Public Switched Telephone Network; Support of legacy terminals by Broadband IP networks and equipment; Part 2: Analogue PSTN terminals". (3/05).
ITU-T Y.2031. "PSTN/ISDN emulation architecture". (09/06).
ETSI ES 283 002 v2.1.0. "Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN); PSTN/ISDN Emulation Subsystem (PES); NGN Release 2 H.248 Profile Version 2 for controlling Access and Residential Gateways". (03/08).
ITU-T Y.2012. "Functional requirements and architecture of next generation networks". (9/06).
ITU-T Y.1453. "TDM-IP interworking - User plane interworking". (03/06).
ITU-T Y.1452. "Voice trunking over IP networks". (3/06).
IETF RFC 4197. "Requirements for Edge-to-Edge Emulation of Time Division Multiplexed (TDM) Circuits over Packet Switching Networks". (10/05).
IETF RFC 3985. "PseudoWire Emulation Edge-to-Edge (PWE3) Architecture". (03/05).
ITU-T I.231.5. “Circuit-mode 2 x 64 kbit/s unrestricted, 8 kHz structured bearer service". (11/88).
ITU-T I.231.6. “Circuit-mode 384 kbit/s unrestricted, 8 kHz structured bearer service". (7/96).
ITU-T I.231.7. “Circuit-mode 1536 kbit/s unrestricted, 8 kHz structured bearer service". (7/96).
ITU-T I.231.8. “Circuit-mode 1920 kbit/s unrestricted, 8 kHz structured bearer service". (7/96).
ITU-T I.231.10. “Circuit-mode multiple-rate unrestricted 8 kHz structured bearer service". (8/92).
ITU-T I.140. “Attribute technique for the characterization of telecommunication services supported by an ISDN and network capabilities of an ISDN". (3/93).
ITU-T Y.2011. "General principles and general reference model for Next Generation Networks". (10/04).
ITU-T H.248.1. “Gateway control protocol: Version 3". (9/05).
IETF RFC 3916. "Requirements for Pseudo-Wire Emulation Edge-to-Edge (PWE 3)". (09/04).
IETF RFC 4553. "Structure-Agnostic Time Division Multiplexing (TDM) over Packet (SAToP)". (6/06).
IETF RFC 5087. "Time Division Multiplexing over IP (TDMoIP)". (12/07).
Broadband Forum af-vtoa-0078.000. "Circuit Emulation Service (CES) Interoperability. Specification Version 2.0". (1/97).
IETF RFC 5086. "Structure-Aware Time Division Multiplexed (TDM) Circuit Emulation Service over Packet Switched Network (CESoPSN)". (12/07).
Broadband Forum af-vmoa-145.001. "Voice and Multimedia Over ATM - Loop Emulation Service (LES) Using AAL2 (Rev 1)". (2/03).
IETF RFC 5287. "Control Protocol Extensions for the Setup of Time-Division Multiplexing (TDM) Pseudowires in MPLS Networks". (8/08).
ITU-T I.363.2. "B-ISDN ATM Adaptation Layer specification : Type 2 AAL". (11/00).
ITU-T I.231.1. “Circuit-mode 64 kbit/s unrestricted, 8 kHz structured bearer service". (11/88).
IETF RFC 4040. "RTP Payload Format for a 64 kbit/s Transparent Call". (4/05).
IETF RFC 3389. "Real-time Transport Protocol (RTP) Payload for Comfort Noise (CN)". (9/02).
ITU-T G.961. "Digital transmission system on metallic local lines for ISDN basic rate access". (3/93).
ITU-T Q.512. "Digital exchange interfaces for subscriber access". (2/95).
ITU-T I.430. "Basic user-network interface – Layer 1 specification". (11/95).
ITU-T I.431. "Primary rate user-network interface – Layer 1 specification". (3/93).
ITU-T Y.1414. “Voice services – MPLS network interworking". (7/04).
IETF RFC 2508. "Compressing IP/UDP/RTP Headers for Low-Speed Serial Links". (2/99).
IETF RFC 3550. "RTP: A Transport Protocol for Real-Time Applications". (7/03).
ETSI TS 183 002 v3.3.1. "Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN); PSTN/ISDN Emulation Subsystem (PES); H.248 Profile Version 3 for controlling Access and Residential Gateways". (8/09).
