Abstract
This paper proposes vGPRS, a voice over IP (VoIP) mechanism for general packet radio service (GPRS) network. In this approach, a new network element called VoIP mobile switching center (VMSC) is introduced to replace standard GSM MSC. Both standard GSM and GPRS mobile stations can be used to receive real-time VoIP service, which need not be equipped with the VoIP (i.e., H.323) terminal capabilities. The vGPRS approach is implemented using standard H.323, GPRS, and GSM protocols. Thus, existing GPRS and H.323 network elements are not modified. Furthermore, the message flows for vGPRS registration, call origination, call release and call termination procedures are described to show the feasibility of our vGPRS system.
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References
3GPP, 3rd Generation Partnership Project; Technical Specification Group Core Network; Feasibility Technical Report - CAMEL Control of VoIP Services, Technical Report 3G TR 21.978, Version 3.0.0, 3GPP (1999), Available at http://www.3gpp.org.
Y.-J. Cho, Y.-B. Lin and C.-H. Rao, Reducing the network cost of call delivery to GSM roamers, IEEE Network Magazine 11(5) (1997) 19–25.
ETSI, Telecommunications and Internet Protocol Harmonization Over Networks (TIPHON): description of technical issues, Technical Report TR101300 V1.1.5, ETSI (1998).
ETSI/TC, Mobile Radio Interface Layer 3 specification, Technical Report Recommendation GSM 04.08, ETSI (1993).
ETSI/TC,Mobile Application Part (MAP) Specification, Version 4.8.0, Technical Report Recommendation GSM 09.02, ETSI (1994).
ETSI/TC, European Digital Cellular Telecommunications System (Phase 2+); GPRS Base Station System (BSS) - Serving GPRS Support Node (SGSN) Interface; Gb Interface Layer 1, Technical Report Recommendation GSM 08.14, Version 6.0.0, ETSI (1997).
ETSI/TC, GPRS Service description Stage 2, Technical Report Recommendation GSM 03.60, Version 7.0.0 (Phase 2+), ETSI (1998).
ETSI/TC, GPRS Tunnelling Protocol (GTP) across the Gn and Gp Interface, Technical Report Recommendation GSM 09.60, Version 7.0.0 (Phase 2+), ETSI (1998).
O. Granberg, GSM on the Net, Ericsson Review (4) (1998) 184–191.
ITU, Call signalling protocols and media stream packetization for packet based multimedia communication systems, Technical Report ITU-T H.225, Version 3, International Telecommunication Union (1998).
ITU, Packet-based multimedia communications systems, Technical Report ITU-T H.323, Version 3, International Telecommunication Union (1999).
Y.-B. Lin and I. Chlamtac, Mobile and Wireless Network Protocols and Services (Wiley, New York, 2000).
A.-C. Pang, Y.-B. Lin and Y.-R. Haung, System and method of providing voice communications for radio network, USA Patent Pending.
H.C.-H. Rao, Y.-B. Lin and S.-L. Chou, iGSM: VoIP service for mobile networks, IEEE Communications Magazine 4(38) (2000) 62–69.
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Chang, MF., Lin, YB. & Pang, AC. vGPRS: A Mechanism for Voice over GPRS. Wireless Networks 9, 157–164 (2003). https://doi.org/10.1023/A:1021893616785
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DOI: https://doi.org/10.1023/A:1021893616785