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http://dx.doi.org/10.3745/KIPSTC.2008.15-C.5.367

The Research about Voice Transmission between CDMA Network and PSTN Network Using CDMA Circuit Data Service  

Park, Yong-Seok (한국전자통신연구원 부설연구소)
Ahn, Jae-Hwan (한국전자통신연구원 부설연구소)
Ryou, Jae-Cheol (충남대학교 정보통신공학부)
Publication Information
The KIPS Transactions:PartC / v.15C, no.5, 2008 , pp. 367-374 More about this Journal
Abstract
To realize the voice privacy between CDMA mobile phone and PSTN terminal, the voice frames shall be transmitted transparently between the heterogeneous networks. For satisfying this requirement, we propose the method which transmits voice frames using the CDMA circuit data channel in real time. In this paper we analyze the causes of voice delay which occurs during voice transmission using circuit data channel. And in order to overcome this kind of delay, the technique controlling the TCP control flag and the variable audio block construction algorithm according to the vocoder output rate are proposed. As a result of experimenting by applying the proposed method, we confirmed that the transit delay was improved with about average 70%.
Keywords
CDMA circuit data service; PSTN; Voice Encryption; Voice Transmission delay;
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  • Reference
1 Edward J. Daniel, Keith A. Teague, “Performance of FNBDT and Low Rate Voice(MELP) Over Packet Networks”, Signals, Systems and Computer, 2001   DOI
2 박성수 외, “효율적인 이동 데이터 서비스를 위한 연동 프로토콜의 성능 분석”, 한국통신학회논문지, Vol.23, No.7, pp.1744-1754, 1998   과학기술학회마을
3 M. E. Dark, R. A. Dean, “Security Architecture for Tactical/Strategic Interoperability”, Proceedings of the 1994 IEEE Tactical Communications Conference, pp.245-254, Vol.1, 1994   DOI
4 http://www.3gpp2.org
5 김현욱, 김연규, 이성범, 이명성, 'IMT-2000 이동통신 원리(CDMA2000 중심으로)', 진한도서, 2001
6 3GPP2 C.S0017-001-A, “Data Service Options for Spread Spectrum Systems : Introduction and Service Guide”, Version 1.0, June 2004
7 TIA/EIA/IS-707.2(PN-4145.2), “Data Service Option for Wideband Spread Spectrum Systems : Radio Link Protocol”, V&V Version, July 1998
8 이준희, 차호정, “CDMA2000 1x 망에서 RLP NAK를 사용한 전송 품질 측정”, 한국정보과학회 봄 학술발표논문집, Vol.30, No.1, pp 223-225, 2003
9 3GPP2 C.S0017-004-A, “Data Service Options for Spread Spectrum Systems : Async Data and Fax Services”, Version 1.0, June 2004
10 IEEE RFC 793, Transmission Control Protocol
11 IEEE RFC 791, Internet Protocol
12 IEEE RFC 1661, The Point-to-Point Protocol(PPP)
13 A. H. Levesque, R. A. Dean, “Secure Communications Interoperability in Mixed Analog and Digital Networks”, Proceedings of IEEE Military Communications Conference MILCOM'91, pp.303-307, Vol.1, 1991