For the purposes of the present document, the terms given in
TR 21.905 and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in
TR 21.905.
alert-SC:
service element provided by a GSM/UMTS/EPS/5GS PLMN to inform an SC which has previously initiated unsuccessful short message delivery attempt(s) to a specific MS/UE, that the MS/UE is now recognized by the PLMN to have recovered operation.
Gateway MSC For Short Message Service (SMS-GMSC):
function of an MSC capable of receiving a short message from an SC, interrogating an HLR/HSS/UDM for routing information and SMS info, and delivering the short message to the VMSC/SGSN/MME/SMSF of the recipient MS/UE.
Interworking MSC For Short Message Service (SMS-IWMSC):
function of an MSC capable of receiving a short message from within the PLMN and submitting it to the recipient SC.
IP-Short-Message-Gateway (IP-SM-GW):
function responsible for protocol interworking between the IP-based UE and the SC.
Service Centre (SC):
function responsible for the relaying and store and forwarding of a short message between an SME and an MS/UE.
For the purposes of the present document, the abbreviations given in
TR 21.905 and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in
TR 21.905.
GPSI
Generic Public Subscription Identifier
MNPF
Mobile Number Portability Function
MO SMS
Mobile Originated Short Message Service
MT SMS
Mobile Terminated Short Message Service
NAS
Non-Access-Stratum
NP
Number Portability
NRF
Network Repository Function
SBA
Service Based Architecture
SBI
Service Based Interface
SCP
Service Communication Proxy
SMS
Short Message Service
SM MO
Short Message Mobile Originated
SM MT
Short Message Mobile Terminated
SMSF
Short Message Service Function
SMSoNAS
SMS over NAS
UDM
Unified Data Management