Kodowanie i transmisja mowy w systemach telefonii komórkowej trzeciej generacji

• Autorzy: Knapek B.

Warianty tytułu

EN

Coding and transmission of speech signals in 3rd generation cellular system

• Języki publikacji: PL

Abstrakty

PL

Opisano zagadnienia związane z kodowaniem oraz transmisją sygnału mowy w systemie komórkowym trzeciej generacji UMTS. Przedstawiono mechanizmy odpowiedzialne za zapewnienie jak najlepszej jakości połączenia. Omówiono wybrane aspekty jakości połączeń głosowych.

EN

This article describes issues connected with coding and transmission of speech signals in 3rd generation cellular system - UMTS. Mechanisms improving quality are shown. Some quality-oriented aspects are taken into account.

Słowa kluczowe

PL

AMR; TFO; TrFO; kodowanie mowy

EN

AMR; TFO; TrFO; speech coding

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Telekomunikacyjny + Wiadomości Telekomunikacyjne
• Rocznik: 2003
• Tom: nr 5
• Strony: 233--238
• Opis fizyczny: Bibliogr. 37 poz., rys., tab.

Twórcy

autor

Knapek B.

• Akademia Górniczo-Hutnicza w Krakowie

Bibliografia

• [1] 3GPP TS 21.103, v5.1.0, 3rd Generation mobile system Release 5 specifications. 2002
• [2] 3GPP TS 21.905, v5.5.0, Vocabulary for 3GPP Specifications. 2002
• [3] 3GPP TS 22.053, v5.0.0, Tandem Free Operation; Service Description; Stage 1, 2002
• [4] 3GPP TS 23.053, v5.0.0, Tandem Free Operation; Service Description; Stage 2. 2002
• [5] 3GPP TS 23.153, v5.2.0, Out of Band transcoder control; Stage 2, 2002
• [6] 3GPP TS 26.071, v5.0.0, AMR Speech Codec; General Description, 2002
• [7] 3GPP TS 26.090, v5.0.0, Adaptive Multi-Rate (AMR) speech codec; Transcoding functions. 2002
• [8] 3GPP TS 26.091, v5.0.0, Adaptive Multi-Rate (AMR) speech codec; Error concealment of lost frames, 2002
• [9] 3GPP TS 26.092, V5.0.0, Adaptive Multi-Rate (AMR) speech codec; Comfort noise aspects, 2002
• [10] 3GPP TS 26.093, v5.1.0, Adaptive Multi-Rate (AMR) speech codec; Source controlled rate operation, 2002
• [11] 3GPP TS 26.094, v5.0.0, Adaptive Multi-Rate (AMR) speech codec; Voice Activity Detector (VAD), 2002
• [12] 3GPP TS 26.101, v5.0.0, Adaptive Multi-Rate (AMR) speech codec frame structure, 2002
• [13] 3GPP TS 26.171, v5.0.0, AMR Wideband Speech Codec; General Description, 2001
• [14] 3GPP TS 26.190, v5.1.0, AMR Wideband speech codec; Transcoding functions, 2001
• [15] 3GPP TS 26.191, v5.1.0, AMR Wideband Speech Codec; Error concealment of erroneous or lost frames, 2001
• [16] 3GPP TS 26.192, v5.0.0, AMR Wideband Speech Codec; Comfort noise aspects, 2001
• [17] 3GPP TS 26.193, v. 5.0.0, AMR Wideband Speech Codec; Source Controlled Rate, 2001
• [18] 3GPP TS 26.194, v5.0.0, AMR Wideband speech codec; Voice Activity Detector (VAD), 2001
• [19] 3GPP TS 26.201, v5.0.0, AMR Wideband Speech Codec; Frame Structure, 2001
• [20] 3GPP TS 26.975, v5.0.0, Performance Characterization of the AMR Speech Codec, 2002
• [21] 3GPP TS 26.976, v1.0.0, Performance characterization of the Adaptive Multi-Rate Wide-Band (AMR-WB) speech codec, 2002
• [22] 3GPP TS 28.062, V5.2.0, Inband Tandem Free Operation (TFO) of speech codecs; Service description; Stage 3, 2002
• [23] Aftelak S.: New Speech Related Features in GSM. W: GSM-Evolution Towards 3rd Generation Systems, Zbiór prac pod red. Zvonar Z., Kluwer Academic Publishers, 1999
• [24] ETSI SMG1 Committee, Enchanced full-rate speech; Study Phase Report, 1994
• [25] ETSI SMG11, Adaptive Multi-Rate (AMR) Speech Codec; Study Phase Report - Release 98, 2000
• [26] GSM 06.10, Digital cellular telecommunications system; Full rate speech transcoding
• [27] GSM 06.20, Digital cellular telecommunications system; Half rate speech transcoding
• [28] Holubowicz W., Plóciennik P.: Cyfrowe systemy telefonii komórkowej GSM 900, GSM 1800, UMTS, Holkom, Poznań, 1998
• [29] Holma H., Toskala A.: WCDMA for UMTS - Radio Access For Third Generation Mobile Communications, Wiley, 2000
• [30] Kaaranen H., Ahtiainen A., Laitinen L., Naghian S., Niemi V.: UMTS Networks - Architecture, Mobility and Services, Wiley, 2001
• [31] Korhonen J., Introduction to 3G Mobile Communications, Artech House, 2001
• [32] Ludwin W., Pach A., Zbieżek T., Advanced Technologies, Applications and Market Strategies for 3G, AT AMS 2001, Kraków, 17-20 czerwiec 2001
• [33] Steele R., Mobile Radio Communications, Wiley, 1999
• [34] Tdoc TSRG2#2 (99) 601, AMR mode adaptation in UTRAN Nokia 1999
• [35] Tdoc TSRG2#6 (99) 880, UE controlled AMR mode adaptation Nokia, 1999
• [36] Zalecenie ITU-T G. 711, Pulse Code Modulation (PCM) of Voice Frequencies, 1988
• [37] Zalecenie ITU-T P. 830, Subjective Performance Assessment of Telephone-band and Wideband Digital Codecs, 1996