3GPP TS 22.002
3GPP TS 22.002
3GPP TS 22.002
0 (2001-03)
Technical Specification
3rd Generation Partnership Project; Technical Specification Group Services and System Aspects; Circuit Bearer Services (BS) supported by a Public Land Mobile Network (PLMN) (Release 1999)
The present document has been developed within the 3rd Generation Partnership Project (3GPP TM) and may be further elaborated for the purposes of 3GPP. The present document has not been subject to any approval process by the 3GPP Organisational Partners and shall not be implemented. This Specification is provided for future development work within 3GPP only. The Organisational Partners accept no liability for any use of this Specification Specifications and reports for implementation of the 3GPP TM system should be obtained via the 3GPP Organisational Partners' Publications Offices.
Release 1999
Keywords
bearer, circuit mode, GSM, UMTS All rights reserved.
Internet
http://www.3gpp.org
Copyright Notification No part may be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media.
2001, 3GPP Organizational Partners (ARIB, CWTS, ETSI, T1, TTA,TTC).
3GPP
Release 1999
Contents
Foreword............................................................................................................................................................ 4 0
0.1 0.2
Scope ....................................................................................................................................................... 5
References................................................................................................................................................................5 Abbreviations...........................................................................................................................................................5
1 2 3
Framework for defining Circuit Bearer Services .................................................................................... 6 Bearer Service categories ........................................................................................................................ 7 Bearer Services........................................................................................................................................ 7
3.1 General bearer service user data characteristics.......................................................................................................8 3.1.1 3,1 kHz Audio ....................................................................................................................................................8 3.1.2 V.110 UDI..........................................................................................................................................................9 3.1.3 X.31 Flag Stuffing UDI......................................................................................................................................9 3.1.4 V.120................................................................................................................................................................10 3.1.5 Bit Transparent Mode ......................................................................................................................................10 3.1.6 PIAFS...............................................................................................................................................................10 3.1.7 Frame Tunnelling Mode...................................................................................................................................10 3.1.8 Multimedia Call................................................................................................................................................11
3GPP
Release 1999
Foreword
This Technical Specification has been produced by the 3GPP. The contents of the present document are subject to continuing work within the TSG and may change following formal TSG approval. Should the TSG modify the contents of the present document, it will be re-released by the TSG with an identifying change of release date and an increase in version number as follows: Version x.y.z where: x the first digit: 1 presented to TSG for information; 2 presented to TSG for approval; 3 or greater indicates TSG approved document under change control. y the second digit is incremented for all changes of substance, i.e. technical enhancements, corrections, updates, etc. z the third digit is incremented when editorial only changes have been incorporated in the document.
3GPP
Release 1999
Scope
The present document defines a set of Circuit Bearer Services to be provided to PLMN subscribers by a PLMN itself and in connection with other networks. This TS should also be used as a reference for defining the corresponding required mobile network capabilities.
0.1
References
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] [2] [3] [4] [5] [6] [7] [8] [9] GSM 01.04: "Digital cellular telecommunications system (Phase 2+); Abbreviations and acronyms". GSM 22.001: " Principles of circuit telecommunication services supported by a GSM Public Land Mobile Network (PLMN)". TS 22.004: " General on supplementary services". TS 27.001: " General on Terminal Adaptation Functions (TAF) for Mobile Stations (MS)". TS 27.002: " Terminal Adaptation Functions (TAF) for services using asynchronous bearer capabilities". TS 27.003: " Terminal Adaptation Functions (TAF) for services using synchronous bearer capabilities". TS 27.005: "Use of Data Terminal Equipment - Data Circuit terminating Equipment (DTE - DCE) interface for Short Message Service (SMS) and Cell Broadcast Service (CBS)". TS 29.002: " Mobile Application Part (MAP) specification". TS 29.007: "General requirements on interworking between the Public Land Mobile Network (PLMN) and the Integrated Services Digital Network (ISDN) or Public Switched Telephone Network (PSTN)". TS 29.010: " Information element mapping between Mobile Station - Base Station System and BSS - Mobile-services Switching Centre (MS - BSS - MSC) Signalling procedures and the Mobile Application Part (MAP)". TS 29.011: " Signalling interworking for supplementary services". ITU-T Recommendation V.120: "Support by an ISDN of data terminal equipments with V-series type interface with provision for statistical multiplexing". TR 21.905: "Vocabulary for 3GPP Specifications"
[10]
0.2
Abbreviations
Abbreviations used in this TS are listed in GSM 01.04 [1] and TR 21.905 [13].
3GPP
Release 1999
Bearer Services are described by attributes, which are intended to be independent. These attributes are described and defined in TS 22.001 [2]. They are grouped into four categories:
Figure 1 shows the relation between the groups of attributes and their fields of applicability.
PLMN
IWF
IWF
Terminating Network
Interworking Attributes
NOTE 1: A transit network may not exist for a Bearer Service. NOTE 2: Communication may be established from either end. NOTE 3: The information transfer and access attributes of a Bearer Service relate to a direct peer-to-peer communication of: TE to TE; TE to a network gateway (supporting, for example, PSTN interworking); or network gateway to a TE.
Figure 1: Relation between the groups of attributes and fields of applicability The following table lists the individual attributes in each of the four groups. The Bearer Service definitions in this specification are based on the "Minimal Set" of attributes.
3GPP
Release 1999
X X
Attributes that are not part of the minimal set provide further technical detail and are required to fully define the use of each Bearer Service. See specifications [4], [5], [6], [7] for information about the Signalling Access Protocols, Information Access Protocols and related access attributes. Supplementary services are defined in TS 22.004 [3]. Intercommunication is required with services in the PSTN, ISDN and other PLMNs. The capabilities that describe the Interworking Attributes are described in specifications [8] to [9] and [15].
All Bearer Service categories provide information transfer between the reference points and allow the use of sub-rate information streams which are rate-adapted. The Bearer Services can be grouped into the following categories: Unrestricted Digital Information (UDI); Provides the transfer of unrestricted digital information. 3,1 kHz (External to the PLMN); Used to select a "3,1 kHz audio" interworking function at the MSC. This service category is used when interworking with the ISDN or PSTN "3,1 kHz audio" service and includes the capability to select a modem at the interworking function. "External to the PLMN" indicates that the "3,1 kHz audio" service is only used outside of the PLMN, in the ISDN/PSTN. The connection within the PLMN, user access point to the interworking function, is an unrestricted digital connection.
Bearer Services
This clause provides a list of the existing Bearer Services and indicates the values for each attribute in the minimal set. The following attributes have the same value for all Bearer Services. Their values are as follows: Information Transfer Mode: "Circuit";
3GPP
Release 1999
NOTE 1: The Information Transfer Rate attribute is not applicable because it depends on the reference point assumed in the PLMN, transit or terminating network. All asynchronous NT Bearer Services may support data compression to enhance user data throughput. NT Bearer Services 20 and 30 may support V.120 interworking, enabling data terminals connected to an UE to interwork with V.120 [12] terminal adapters on the ISDN as shown in the figure 2 below.
R reference point V.110 V.120
UE
RAN
MSC
IWF
V.120 TA
PLMN
ISDN
Figure 2: Model of V.120 Interworking Table 2 contains the list of the Bearer Services and the values for the remaining attributes in the minimal set. Table 2
Bearer Bearer Service Access Service Name Structure Number Asynch 20 Asynchronous General Bearer Service 30 Synchronous General Synch Bearer Service Access Rate Information Transfer Capability note 1 QOS Attribute Notes
note 1
note 1
See note 1
note 2
note 2
note 2
See note 1
NOTE 1: This General Bearer is independent of any nominal rate. It is elaborated in more detail in subclause 3.1 NOTE 2: Please refer to subclause 3.1.
3.1
The tables below describe the characteristics of the General Bearer Services. The indicated fixed network user rates are possible, but support of General Bearer Service does not imply support of all rates.
3GPP
Release 1999
3.1.1
Fixed Network User Rate 0,3 kbit/s 1,2 kbit/s 2,4 kbit/s 4,8 kbit/s 9,6 kbit/s 14,4 kbit/s 19,2 kbit/s 28,8 kbit/s
Note 3
NOTE 1: Not applicable to synchronous NT service. NOTE 2: These services are also supported by the GSM Phase 2 Specifications. NOTE 3: This is used with high speed modems such as V.90 (56kbit/s). Modem type = 'Autobauding Type 1' is selected. FNUR has no meaning in this case. NOTE 4: In case of UTRAN the FNURs 300, 1200, 2400 and 4800 bit/s towards the fixed network can be provided only in Async non-transparent (NT) mode with modem type = 'Autobauding Type 1' is selected. NOTE 5: In case of UTRAN the FNURs 9.6, 14.4 and 19.2 kbit/s towards the fixed network shall be provided only in non-transparent (NT) mode.
3.1.2
V.110 UDI
Access Structure Asynch Asynch, Synch Asynch, Synch Asynch, Synch Asynch, Synch Asynch, Synch Asynch, Synch Asynch, Synch Asynch, Synch Synch Synch User Information Layer 1 protocol V.110 V.110 V.110 V.110 V.110 V.110 V.110 V.110 V.110 V.110 V.110 QoS Attribute NT or T NT or T NT or T NT or T NT or T NT or T NT or T NT or T NT or T T T (in a 64 kbit/s environment) Notes note 2 and 3 note 1, 2 and 3 note 2 and 3 note 2 and 3 note 2 and 4 Note 4 Note 4 Note 4 Note 4 Note 5
Fixed Network User Rate 0,3 kbit/s 1,2 kbit/s 2,4 kbit/s 4,8 kbit/s 9,6 kbit/s 14,4 kbit/s 19,2 kbit/s 28,8 kbit/s 38,4 kbit/s 48 kbit/s 56 kbit/s
NOTE 1: Not applicable to synchronous NT service. NOTE 2: These services are also supported by the GSM Phase 2 Specifications. NOTE 3: In case of UTRAN the user rates 300, 1200, 2400 and 4800 bit/s towards the fixed network can be provided only for mobile terminated calls and only in Async non-transparent (NT) mode. NOTE 4: In case of UTRAN the FNURs 9.6, 14.4, 19.2, 28.8 and 38.4 kbit/s towards the fixed network shall be provided only in non-transparent (NT) mode. NOTE 5: Only applicable in GSM.
3GPP
Release 1999
10
3.1.3
Fixed Network User Rate 2,4 kbit/s 4,8 kbit/s 9,6 kbit/s 14,4 kbit/s 19,2 kbit/s 28,8 kbit/s 38,4 kbit/s 48 kbit/s 56 kbit/s
NOTE 1: NOTE 2:
These services are also supported by the GSM Phase 2 Specifications. In case of UTRAN the user rates 2400 and 4800 bit/s are not supported.
3.1.4
V.120
Access Structure Asynch Asynch, Synch Asynch, Synch Asynch, Synch Asynch, Synch Asynch, Synch Asynch, Synch Asynch, Synch Asynch, Synch Asynch, Synch User Information Layer 1 protocol V.120 V.120 V.120 V.120 V.120 V.120 V.120 V.120 V.120 V.120 QoS Attribute NT NT NT NT NT NT NT NT NT NT Note 3 Note 3 Note 3 Notes
Fixed Network User Rate 1,2 kbit/s 2,4 kbit/s 4,8 kbit/s 9,6 kbit/s 14,4 kbit/s 19,2 kbit/s 28,8 kbit/s 38,4 kbit/s 48 kbit/s 56 kbit/s
Note 1
Note 2
NOTE 1: Requires a new code point in V.120 specification to be defined. NOTE 2: Not applicable in a 56 kbit/s environment. NOTE 3: In case of UTRAN the user rates 1200, 2400 and 4800 bit/s toward the fixed network can be provided only for asynchronous non-transparent (NT) mobile terminated calls.
3.1.5
64 kbit/s
Synch
Bit transparent
3.1.6
PIAFS
Access Structure Asynch Asynch User Information Layer 1 protocol PIAFS PIAFS QoS Attribute NT NT Notes
3GPP
Release 1999
11
3.1.7
3.1.8
Multimedia Call
Access Structure Synch Synch Synch Synch Synch Information Transfer Capability 3.1kHz Audio UDI 3.1kHz Audio RDI UDI User Information Layer 1 protocol H.223 & H.245 H.223 & H.245 H.223 & H.245 H.223 & H.245 H.223 & H.245 QoS Attribute T T T T T Notes
Fixed Network User Rate 28,8 kbit/s 32,0 kbit/s 33,6 kbit/s 56 kbit/s 64 kbit/s
Note
NOTE:
3GPP
Release 1999
12
SP-99520 S1-991075 SP-000054 S1-000132 SP-000192 S1-000274 SP-000371 S1-000561 SP-010039 S1-010252
3GPP