Content for TS 23.146 Word version: 18.0.0
1 Scope p. 6
The present document describes the procedures allowing the technical realization of the real time end to end facsimile group 3 service within the UMTS PLMN using non transparent network support according to the definition of the Teleservices 61 and 62 specified in TS 22.003. Within the present document particular attention is given to Teleservice "Alternate speech/facsimile group 3" (Teleservice 61). However, the definitions apply also to Teleservice "Automatic facsimile group 3" (Teleservice 62) with the exception of all actions concerned with the speech phase. Consequently, in the following descriptions the term "Teleservice" denotes both Teleservice 61 and Teleservice 62 as appropriate.
2 References p. 6
The following documents contain provisions which, through reference in this text, constitute provisions of the present document.
- References are either specific (identified by date of publication, edition number, version number, etc.) or non-specific.
- For a specific reference, subsequent revisions do not apply.
- For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document.
[1]
TS 22.003: "Circuit Teleservices supported by a Public Land Mobile Network (PLMN)".
[2]
TR 23.910: "Circuit Switch Data Bearer Services".
[3]
TS 24.008: "Mobile radio interface layer 3 specification".
[4]
TS 27.001: "General on Terminal Adaptation Functions (TAF) for Mobile Stations (MS)".
[5]
TS 27.002: "Terminal Adaptation Functions (TAF) for services using asynchronous bearer capabilities".
[6]
TS 27.007: "AT command set for 3GPP User Equipment(UE)".
[7]
TS 29.007: "3GPP; TSG CN; General requirements on interworking between the Public Land Mobile Network (PLMN) and the Integrated Services Digital Network (ISDN) or Public Switched Telephone Network (PSTN)".
[8]
ITU-T Recommendation T.4: "Standardization of group 3 facsimile apparatus for document transmission".
[9]
ITU-T Recommendation T.30: "Procedures for document facsimile transmission in the general switched telephone network".
[10]
ITU-T Recommendation V.21: "300 bits per second duplex modem standardized for use in the general switched telephone network".
[11]
ITU-T Recommendation V.24: "List of definitions for interchange circuits between data terminal equipment (DTE) and data circuit terminating equipment (DCE)".
[12]
ITU-T Recommendation V.27 ter: "4 800/2 400 bits per second modem standardized for use in the general switched telephone network".
[13]
ITU-T Recommendation V.29: "9 600 bits per second modem standardized for use on point to point 4 wire leased telephone type circuits".
[14]
ITU-T Recommendation V.17: "A 2-wire modem for facsimile applications with rates up to 14 400 bit/s".
[15]
ITU-T Recommendation V.250: "Serial asynchronous automatic dialling and control".
[16]
ITU-T Recommendation X.300: "General principles and arrangements for interworking between public data networks, and between public data networks and other networks".
[17]
ITU-T Recommendation T.38: "Procedures for real-time Group 3 facsimile communication over IP networks".
[18]
ITU-T Recommendation X.680: "Information technology - Abstract Syntax Notation One (ASN.1): Specification of basic notation".
[19]
ITU-T Recommendation X.691: "Information technology - ASN.1 encoding rules - Specification of Packed Encoding Rules (PER)".
[20]
RFC 1662: "PPP in HDLC-like Framing".
[21]
RFC 1661: "The Point-to-Point Protocol (PPP)".
[22]
RFC 1570: "PPP LCP Extensions".
[23]
RFC 1332: "The PPP Internet Protocol Control Protocol (IPCP)".
[24]
RFC 791: "Internet Protocol".
[25]
RFC 768: "User Datagram Protocol".
3 Definition and abbreviations p. 7
3.1 Definitions p. 7
For the purposes of the present document, the following terms and definitions apply:
E-T.38:
to use E-T.38 between both the FAs across the radio interface. E-T.38 is based on ITU-T Recommendation T.38, but there are some differences with regards to the packet elements, transcoding methods, and the procedure of controlling signals. The same procedure as T.38 is used for the structure of the frame and the protocol stack (Refer to the following clause, Annex A and T.38 for the details).
TAF:
TAF usually shows a function of the UE side, but when IWF has the function that is equal to the UE side TAF, TAF is used to express the function of the IWF in the present document.
3.2 Abbreviations p. 7
For the purposes of the present document, the following abbreviations apply:
AAL2
ATM Adaptation Layer type 2
ARQ
Automatic Retransmission Request
BCS
Binary coded signalling
CCT
Circuit(s)
CD
Data Call Direction
CDMA
Code Division Multiple Access
CONTP
Character Oriented Non Transparent Protocol
DTCH
Dedicated Traffic Channel
E-T.38
Enhanced T.38
IE
Information element
IFP
Internet Fax Protocol
IP
Internet Protocol
IWF
Interworking Function
I/F
Interface
L2RCOP
Layer 2 Relay Character Oriented Protocol
MAC
Medium Access Control (protocol layering context)
MMI
Man-Machine Interface
MT
Mobile Terminal
PPP
Point to Point Protocol
PSTN
Public Switched Telephone Network
RCSD
Reverse Call Setup Direction
R-FA
Reception side facsimile adaptor that does not have TAF capability
R-FAX
Reception side facsimile
RLC
Radio Link Control
RLP
Radio Link Protocol
R-TAF
Reception side terminal adaptation function
SREJ
Selective reject
TAF
Terminal Adapter Function
TE
Terminal Equipment
T-FA
Transmission side facsimile adaptor that does not have TAF capability
T-FAX
Transmission side facsimile
T-TAF
Transmission side terminal adaptation function
UE
User Equipment
UDP
User Datagram Protocol
UDPTL
Facsimile UDP Transport Layer protocol
The abbreviations for the facsimile specific protocol elements and signals are listed in Annex B.
