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Content for  TS 25.420  Word version:  16.0.0

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1  ScopeWord‑p. 6

The present document is an introduction to the TSG RAN TS 25.42x series of UMTS Technical Specifications that define the Iur Interface. It is a logical interface for the interconnection of two Radio Network Controller (RNC) components of the UMTS Terrestrial Radio Access Network (UTRAN) for the UMTS system.

2  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]
TS 25.427: "UTRAN Iub/Iur Interface User Plane Protocol for DCH Data Streams".
[2]
TS 25.425: "UTRAN Iur Interface: User Plane Protocols for Common Transport Channel Data Streams".
[3]
TS 25.421: "UTRAN Iur Interface: Layer 1".
[4]
TS 25.422: "UTRAN Iur Interface: Signalling Transport".
[5]
TS 25.423: "UTRAN Iur Interface: Radio Network Subsystem Application Part (RNSAP) signalling".
[6]
TS 25.424: "UTRAN Iur Interface: Data Transport & Transport Signalling ".
[7]  Void
[8]
TS 25.426: "UTRAN Iur & Iub Interface: Data Transport & Transport Signalling for DCH Data Streams".
[9]
ITU-T Recommendation Q.711 (1996-07): "Functional description of the signalling connection control part".
[10]
ITU-T Recommendation Q.712 (1996-07): "Definition and function of signalling connection control part messages".
[11]
ITU-T Recommendation Q.713 (1996-07): "Signalling connection control part formats and codes".
[12]
ITU-T Recommendation Q.714 (1996-07): "Signalling connection control part procedures".
[13]
TS 23.003: "Numbering, Addressing and Identification".
[14]  Void
[15]  Void
[16]  Void
[17]
TR 43.930: "Iur-g interface; Stage 2".
→ to date, withdrawn by 3GPP
[18]
TS 25.346: "Introduction of the Multimedia Broadcast/Multicast Service (MBMS) in the Radio Access Network (RAN); Stage 2".
[19]
TS 25.319: "Enhanced Uplink; Overall description; Stage 2".
[20]
TS 25.415: "UTRAN Iu interface user plane protocols"
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3  Definitions and abbreviationsWord‑p. 7

3.1  Definitions

None.

3.2  Abbreviations

For the purposes of the present document, the following abbreviations apply:
AAL2
ATM Adaptation Layer type 2
AAL5
ATM Adaptation Layer type 5
ALCAP
Access Link Control Application Part
ATM
Asynchronous Transfer Mode
BSS
Base Station Subsystem
CRNC
Controlling RNC
CTP
Common Transport Protocol
DCH
Dedicated Transport Channel
DL
Downlink
DPCH
Dedicated Physical Channel
DRNC
Drift Radio Network Controller
DRNS
Drift Radio Network Subsystem
DSCH
Downlink Shared Channel
E-DCH
Enhanced Dedicated Channel
EDGE
Enhanced Data rates for GSM Evolution
FACH
Forward Access Channel
F-DPCH
Fractional DPCH
FFS
For Further Study
GERAN
GSM/EDGE Radio Access Network
GSM
Global System for Mobile communications
GT
Global Title
HARQ
Hybrid Automatic Repeat Request
HS-DSCH
High Speed Downlink Shared Channel
IP
Internet Protocol
MAC
Medium Access Control
MBMS
Multimedia Broadcast Multicast Service
MRNC
MBMS Master RNC
MTP3-B
Message Transfer Part level 3 (for Q.2140)
PLMN
Public Land Mobile Network
PTM
Point To Multipoint
PTP
Point To Point
QoS
Quality of Service
RACH
Random Access Channel
RF
Radio Frequency
RNC
Radio Network Controller
RNS
Radio Network Subsystem
RNSAP
Radio Network Subsystem Application Part
RRC
Radio Resource Control
SCCP
Signalling Connection Control Part
SPC
Signalling Point Code
SRNC
Serving Radio Network Controller
SRNS
Serving Radio Network Subsystem
SS7
Signalling System No 7
SSCF-NNI
Service Specific Co-ordination Function - Network Node Interface
SSCOP
Service Specific Connection Oriented Protocol
SSN
Sub-System Number
STC
Signalling Transport Converter
UDP
User Datagram Protocol
UE
User Equipment
UL
Up-link
UMTS
Universal Mobile Telecommunication System
URA
UTRAN Registration Area
USCH
Uplink Shared Channel
UTRAN
UMTS Terrestrial Radio Access Network
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3.3  Specification NotationsWord‑p. 8

For the purposes of the present document, the following notations apply:
[FDD]
This tagging of a word indicates that the word preceding the tag "[FDD]" applies only to FDD. This tagging of a heading indicates that the heading preceding the tag "[FDD]" and the section following the heading applies only to FDD.
[TDD]
This tagging of a word indicates that the word preceding the tag "[TDD]" applies only to TDD, including 7.68 Mcps TDD, 3.84Mcps TDD and 1.28Mcps TDD. This tagging of a heading indicates that the heading preceding the tag "[TDD]" and the section following the heading applies only to TDD, including 7.68 Mcps TDD, 3.84Mcps TDD and 1.28Mcps TDD.
[3.84Mcps TDD]
This tagging of a word indicates that the word preceding the tag "[3.84Mcps TDD]" applies only to 3.84Mcps TDD. This tagging of a heading indicates that the heading preceding the tag "[3.84Mcps TDD]" and the section following the heading applies only to 3.84Mcps TDD.
[1.28Mcps TDD]
This tagging of a word indicates that the word preceding the tag "[1.28Mcps TDD]" applies only to 1.28Mcps TDD. This tagging of a heading indicates that the heading preceding the tag "[1.28Mcps TDD]" and the section following the heading applies only to 1.28Mcps TDD.
[7.68Mcps TDD]
This tagging of a word indicates that the word preceding the tag "[7.68Mcps TDD]" applies only to 7.68Mcps TDD. This tagging of a heading indicates that the heading preceding the tag "[7.68Mcps TDD]" and the section following the heading applies only to 7.68Mcps TDD.
[FDD - …]
This tagging indicates that the enclosed text following the "[FDD - " applies only to FDD. Multiple sequential paragraphs applying only to FDD are enclosed separately to enable insertion of TDD specific (or common) paragraphs between the FDD specific paragraphs.
[TDD - …]
This tagging indicates that the enclosed text following the "[TDD - " applies only to TDD including 7.68 Mcps TDD, 3.84Mcps TDD and 1.28Mcps TDD. Multiple sequential paragraphs applying only to TDD are enclosed separately to enable insertion of FDD specific (or common) paragraphs between the TDD specific paragraphs.
[3.84Mcps TDD - …]
This tagging indicates that the enclosed text following the "[3.84Mcps TDD - " applies only to 3.84Mcps TDD. Multiple sequential paragraphs applying only to 3.84Mcps TDD are enclosed separately to enable insertion of FDD and TDD specific (or common) paragraphs between the 3.84Mcps TDD specific paragraphs.
[1.28Mcps TDD - …]
This tagging indicates that the enclosed text following the "[1.28Mcps TDD - " applies only to 1.28Mcps TDD. Multiple sequential paragraphs applying only to 1.28Mcps TDD are enclosed separately to enable insertion of FDD and TDD specific (or common) paragraphs between the 1.28Mcps TDD specific paragraphs.
[7.68Mcps TDD - …]
This tagging indicates that the enclosed text following the "[7.68Mcps TDD - " applies only to 7.68Mcps TDD. Multiple sequential paragraphs applying only to 7.68Mcps TDD are enclosed separately to enable insertion of FDD and TDD specific (or common) paragraphs between the 7.68Mcps TDD specific paragraphs.
Procedure
When referring to a procedure in the specification, the Procedure Name is written with the first letters in each word in upper case characters followed by the word "procedure", e.g. RNSAP Basic Mobility Procedures.
Message
When referring to a message in the specification, the MESSAGE NAME is written with all letters in upper case characters followed by the word "message", e.g. RADIO LINK SETUP REQUEST message.
Frame
When referring to a control or data frame in the specification, the CONTROL/DATA FRAME NAME is written with all letters in upper case characters followed by the words "control/data frame", e.g. DCH data frame.
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