3 Definitions, symbols and abbreviations
3GPP43.130GSM/EDGE Iur-g interfaceRelease 17Stage 2TS
3.1 Definitions
For the purposes of the present document, the terms and definitions given in 3GPP TR 21.905 [1] and the following ones apply:
A/Gb mode: mode of operation of the MS when connected to the Core Network via GERAN and the A and/or Gb interfaces.
MS: Unless stated otherwise, this refers with no distinction to both MS and UE.
Iu mode: mode of operation of the MS when connected to the Core Network via GERAN or UTRAN and the Iu interface.
RAN node: a BSS or a RNC.
3.2 Symbols
For the purposes of the present document, the following symbols apply:
A Interface between a BSS and an MSC
Gb Interface between a BSS and an SGSN
Iu Interface between a BSS/RNC and the CN
Iur Interface between two RNSs
Iur-g Interface between two BSSs or between a BSS and an RNS
Um Interface between a GERAN MS and a BSS
Uu Interface between a UE and the RNS
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
BSC Base Station Controller
BSS Base Station Sub-system
CBSS Controlling Base Station Sub-system
CN Core Network
CRNC Controlling Radio Network Controller
GERAN Gsm/Edge Radio Access Network
GPRS General Packet Radio Service
GRA Geran Registration Area
LA Location Area
MS Mobile Station
MSC Mobile Switching Centre
NACC Network Assisted Cell Change
NNSF NAS Node Selection Function
RA Routeing Area
RAN Radio Access Network
RNC Radio Network Controller
RNS Radio Network Sub-system
RNSAP Radio Network Subsystem Application Part
RNTI Radio Network Temporary Identity
RRA Ran Registration Area
RRM Radio Resource Management
SBSC Serving Bsc
SBSS Serving Bss
SGSN Serving Gprs Support Node
SRNC Serving Rnc
TBSS Target BSS
UE User Equipment
UMTS Universal Mobile Telephony System
URA Utran Registration Area
UTRAN Umts Terrestrial Radio Access Network