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authorOliver Smith <osmith@sysmocom.de>2018-12-13 11:32:49 +0100
committerOliver Smith <osmith@sysmocom.de>2019-01-21 15:08:39 +0100
commit2bca846fab0412ccc74d9cb0328d3f374fd71933 (patch)
tree4a486df432834514644fa04160b7460de4a49259
parent0f41399d36770fb6d2069d5aea7e5315beb368e6 (diff)
common: extend glossary.adoc
Add EIR, IMEISV, LU, SS, TS, USSD, and VLR, clarify the difference between IMEI and IMEISV. Change-Id: I054a8599a78eb5e62ab7af914875e1c8a992af71
-rw-r--r--common/chapters/glossary.adoc24
1 files changed, 23 insertions, 1 deletions
diff --git a/common/chapters/glossary.adoc b/common/chapters/glossary.adoc
index 74973b3..e8fed3c 100644
--- a/common/chapters/glossary.adoc
+++ b/common/chapters/glossary.adoc
@@ -85,6 +85,9 @@ EDGE::
GPRS; introduces 8PSK
EGPRS::
Enhanced GPRS; the part of EDGE relating to GPRS services
+EIR::
+ Equipment Identity Register; core network element that stores and manages
+ IMEI numbers
ESME::
External SMS Entity; an external application interfacing with a SMSC
over SMPP
@@ -128,7 +131,11 @@ HPLMN::
IE::
Information Element
IMEI::
- International Mobile Equipment Identity; unique identifier for the mobile phone
+ International Mobile Equipment Identity; unique 14-digit decimal number to
+ globally identify a mobile device, optionally with a 15th checksum digit
+IMEISV::
+ IMEI software version; unique 14-digit decimal number to globally identify a
+ mobile device (same as IMEI) plus two software version digits (total digits: 16)
IMSI::
International Mobile Subscriber Identity; 15-digit unique identifier
for the subscriber/SIM; starts with MCC/MNC of issuing operator
@@ -147,6 +154,9 @@ LLC::
44.064_ <<3gpp-ts-44-064>>)
Location Area::
Location Area; a geographic area containing multiple BTS
+LU::
+ Location Updating; can be of type IMSI-Attach or Periodic. Procedure that
+ indicates a subscriber's physical presence in a given radio cell.
M2PA::
MTP2 Peer-to-Peer Adaptation; a SIGTRAN Variant (_RFC 4165_ <<ietf-rfc4165>>)
M2UA::
@@ -284,6 +294,10 @@ SMSC::
Short Message Service Center; store-and-forward relay for short messages
SS7::
Signaling System No. 7; Classic digital telephony signaling system
+SS::
+ Supplementary Services; query and set various service parameters between
+ subscriber and core network (e.g. USSD, 3rd-party calls, hold/retrieve,
+ advice-of-charge, call deflection)
SSH::
Secure Shell; _IETF RFC 4250_ <<ietf-rfc4251>> to 4254
SSN::
@@ -306,6 +320,8 @@ TFTP::
Trivial File Transfer Protocol; (_IETF RFC 1350_ <<ietf-rfc1350>>)
TRX::
Transceiver; element of a BTS serving a single carrier
+TS::
+ Technical Specification
u-Boot::
Boot loader used in various embedded systems
UBI::
@@ -324,10 +340,16 @@ uplink::
USIM::
Universal Subscriber Identity Module; application running on a UICC
to provide subscriber identity for UMTS and GSM networks
+USSD::
+ Unstructured Supplementary Service Data; textual dialog between subscriber
+ and core network, e.g. '*#100#' -> 'Your extension is 1234'
VCTCXO::
Voltage Controlled, Temperature Compensated Crystal Oscillator; a
precision oscillator, superior to a classic crystal oscillator, but
inferior to an OCXO
+VLR::
+ Visitor Location Register; volatile storage of attached subscribers in
+ the MSC
VPLMN::
Visited PLMN; the network in which the subscriber is currently
registered; may differ from HPLMN when on roaming