diff options
author | Neels Hofmeyr <nhofmeyr@sysmocom.de> | 2016-03-22 08:43:59 +0100 |
---|---|---|
committer | Harald Welte <laforge@gnumonks.org> | 2016-03-22 08:43:59 +0100 |
commit | f4a9a47019acf1691e32a7f8f02c29f6395b7405 (patch) | |
tree | 5a2afd7c0019ce8dbac25323c102fa47452c1836 /common/chapters/glossary.adoc | |
parent | 682a07a82335e7b1af57f94b61eb4c3a1191f3bb (diff) |
glossary: some fixes, unify style, streamline language
Fix A5 description concerning A5/2 (not in use).
Fix UICC: 'Circuit Card', not 'Chip Circuit', and replace 'FIXME'.
NITB: like OsmoNITB just without Osmo, reference OsmoNITB.
Add some words/explanations (FPGA, MSC, OXCO, UICC, VTY).
Fix minor typos ('Freee', 'usees', over-eager dashes '-',
capitalisation).
Use 'an' before acronyms pronounced starting with a vocal ('S', 'M').
Use 'a' before 'U'.
Unify style:
Use semicoli ';' instead of periods '.' or commas ',' where appropriate.
Use lower case letters after semicoli.
Diffstat (limited to 'common/chapters/glossary.adoc')
-rw-r--r-- | common/chapters/glossary.adoc | 113 |
1 files changed, 59 insertions, 54 deletions
diff --git a/common/chapters/glossary.adoc b/common/chapters/glossary.adoc index 2a6ce89..14c65f5 100644 --- a/common/chapters/glossary.adoc +++ b/common/chapters/glossary.adoc @@ -8,10 +8,10 @@ A Interface:: <<3gpp-ts-48-008>>) A3/A8:: Algorithm 3 and 8; Authentication and key generation algorithm in GSM - and GPRS. COMP128v1/v2/v3 or MILENAGE are typically used + and GPRS, typically COMP128v1/v2/v3 or MILENAGE are typically used A5:: Algorithm 5; Air-interface encryption of GSM; currently only A5/0 - through A5/3 are in use + (no encryption), A5/1 and A5/3 are in use Abis Interface:: Interface between BTS and BSC, traditionally over E1 (_3GPP TS 48.058_ <<3gpp-ts-48-058>> and _3GPP TS 52.021_ <<3gpp-ts-52-021>>) @@ -19,10 +19,10 @@ AGCH:: Access Grant Channel on Um interface; used to assign a dedicated channel in response to RACH request AGPL:: - GNU Affero General Public License, a copyleft-style Freee Software License + GNU Affero General Public License, a copyleft-style Free Software License ARFCN:: - Absolute Radio Frequency Channel Number, specifying a tuple of uplink - and downlink frequency + Absolute Radio Frequency Channel Number; specifies a tuple of uplink + and downlink frequencies AUC:: Authentication Center; central database of authentication key material for each subscriber @@ -52,7 +52,7 @@ Cell:: A cell in a cellular network, served by a BTS CEPT:: Conférence européenne des administrations des postes et des - télécommunications; European onference of Postal and Telecommunications + télécommunications; European Conference of Postal and Telecommunications Administrations. CGI:: Cell Global Identifier comprised of MCC, MNC, LAC and BSIC @@ -76,18 +76,18 @@ EDGE:: EGPRS:: Enhanced GPRS; the part of EDGE relating to GPRS services ESME:: - External SMS Entity. An external application interfacing with a SMSC + External SMS Entity; an external application interfacing with a SMSC over SMPP ETSI:: European Telecommunications Standardization Institute FPGA:: - Field Programmable Gate Array. Programmable digital logic + Field Programmable Gate Array; programmable digital logic hardware Gb:: Interface between PCU and SGSN in GPRS/EDGE network; uses NS, BSSGP, LLC GERAN:: GPRS/EDGE Radio Access Network GFDL:: - GNU Free Documentation License, a copyleft-style Documentation License + GNU Free Documentation License; a copyleft-style Documentation License GGSN:: GPRS Gateway Support Node; gateway between GPRS and external (IP) network GMSK:: @@ -95,16 +95,16 @@ GMSK:: GPL:: GNU General Public License, a copyleft-style Freee Software License Gp:: - Gp interface between SGSN and GGSN; usees GTP protocol + Gp interface between SGSN and GGSN; uses GTP protocol GPS:: - Global Positioning System. Provides a high accuracy clock reference - next to position. + Global Positioning System; provides a highly accurate clock reference + besides the global position GSM:: Global System for Mobile Communications. ETSI/3GPP Standard of a 2G digital cellular network GSMTAP:: - GSM tap. Pseudo-Standard for encapsulating GSM protocol layers over - UDP/IP for means of analysis + GSM tap; pseudo standard for encapsulating GSM protocol layers over + UDP/IP for analysis GTP:: GPRS Tunnel Protocol; used between SGSN and GGSN HLR:: @@ -117,11 +117,11 @@ IMEI:: International Mobile Equipment Identity; unique identifier for the mobile phone IMSI:: International Mobile Subscriber Identity; 15-digit unique identifier - for the subscriber/SIM, starts with MCC/MNC of issuing operator + for the subscriber/SIM; starts with MCC/MNC of issuing operator IP:: Internet Protocol (_IETF RFC 791_ <<ietf-rfc791>>) IPA:: - The _ip.access GSM over IP_ protocol, used to multiplex a single TCP connection + _ip.access GSM over IP_ protocol; used to multiplex a single TCP connection LAC:: Location Area Code; 16bit identifier of Location Area within network LAPD:: @@ -138,15 +138,16 @@ MCC:: MGW:: Media Gateway MM:: - Mobility Management; Part of the GSM Layer 3 Protocol + Mobility Management; part of the GSM Layer 3 Protocol MNC:: Mobile Network Code; identifies network within a country; assigned by national regulator MNO:: - Mobile Network Operator; Operator with real physical radio network under his MCC/MNC + Mobile Network Operator; operator with physical radio network under his MCC/MNC MS:: - Mobile Station, the mobile phone / GSM Modem + Mobile Station; a mobile phone / GSM Modem MSC:: - Mobile Switching Center + Mobile Switching Center; network element in the circuit-switcehd + core network MSISDN:: Mobile Subscriber ISDN Number; telephone number of the subscriber MVNO:: @@ -154,7 +155,8 @@ MVNO:: NCC:: Network Color Code; assigned by national regulator NITB:: - Network In The Box; integrating BSC,MSC,VLR,HLR,SMSC functions + Network In The Box; combines functionality traditionally proivided + by BSC, MSC, VLR, HLR, SMSC functions; see OsmoNITB NSEI:: NS Entity Identifier NVCI:: @@ -164,7 +166,8 @@ NWL:: NS:: Network Service; protocol on Gb interface (_3GPP TS 48.016_ <<3gpp-ts-48-016>>) OCXO:: - Oven Controlled Crystal Oscillator. A very high-precision oscillator. + Oven Controlled Crystal Oscillator; very high precision oscillator, + superior to a VCTCXO OML:: Operation & Maintenance Link (ETSI/_3GPP TS 52.021_ <<3gpp-ts-52-021>>) OpenBSC:: @@ -172,22 +175,23 @@ OpenBSC:: OpenGGSN:: Open Source implementation of a GPRS Packet Control Unit OpenVPN:: - Open-Source Virtual Private Network. Used to establish encrypted private networks over untrusted public networks. + Open-Source Virtual Private Network; software employed to establish + encrypted private networks over untrusted public networks Osmocom:: - Open Source MObile COMmunications; Collaborative community for + Open Source MObile COMmunications; collaborative community for implementing communications protocols and systems, including GSM, GPRS, TETRA, DECT, GMR and others OsmoBSC:: Open Source implementation of a GSM Base Station Controller OsmoNITB:: - Open Source implementation of a GSM Network In The Box, comprising - functionality that traditionally required BSC, MSC, VLR, HLR, AUC, SMSC + Open Source implementation of a GSM Network In The Box, combines + functionality traditionally provided by BSC, MSC, VLR, HLR, AUC, SMSC OsmoSGSN:: Open Source implementation of a Serving GPRS Support Node OsmoPCU:: Open Source implementation of a GPRS Packet Control Unit PCH:: - Paging Channel on downlink Um interface; used by network to page a MS + Paging Channel on downlink Um interface; used by network to page an MS PCU:: Packet Control Unit; used to manage Layer 2 of the GPRS radio interface PDCH:: @@ -200,11 +204,11 @@ RACH:: Random Access Channel on uplink Um interface; used by MS to request establishment of a dedicated channel RF:: - Radio Frequency (synonymous to transceiver equipment, e.g. being on or off) + Radio Frequency Roaming:: Procedure in which a subscriber of one network is using the radio - network of another network, often in different countries, but national - roaming exists in some countries, too + network of another network, often in different countries; in some + countris national roaming exists Routing Area:: Routing Area; GPRS specific sub-division of Location Area RR:: @@ -212,7 +216,7 @@ RR:: RSL:: Radio Signalling Link (_3GPP TS 48.058_ <<3gpp-ts-48-058>>) RTP:: - Real-Time Transport Protocol (_IETF RFC 3550_ <<ietf-rfc3550>>). Used to + Real-Time Transport Protocol (_IETF RFC 3550_ <<ietf-rfc3550>>); Used to transport audio/video streams over UDP/IP SACCH:: Slow Associate Control Channel on Um interface; bundled to a TCH or @@ -225,55 +229,56 @@ SDK:: SIM:: Subscriber Identity Module; small chip card storing subscriber identity Site:: - A site is a location where one or multiple BTSs are installed, - typically three BTS for three sectors + A site is a location where one or more BTSs are installed, + typically three BTSs for three sectors SMPP:: - Short Message Peer-to-Peer; TCP based protocol how external entities - can interface with SMSC + Short Message Peer-to-Peer; TCP based protocol to interface external + entities with an SMSC SMSC:: - Short Message Service Center; Store-and-forward relay for short messages + Short Message Service Center; store-and-forward relay for short messages SSH:: - Secure Shell, _IETF RFC 4250_ <<ietf-rfc4251>> to 4254 + Secure Shell; _IETF RFC 4250_ <<ietf-rfc4251>> to 4254 syslog:: System logging service of UNIX-like operating systems System Information:: A set of downlink messages on the BCCH and SACCH of the Um interface describing properties of the cell and network TCH:: - Traffic Channel, used for circuit-switched user traffic (mostly voice) + Traffic Channel; used for circuit-switched user traffic (mostly voice) in GSM TCP:: - Transmission Control Protocol (_IETF RFC 793_ <<ietf-rfc793>>) + Transmission Control Protocol; (_IETF RFC 793_ <<ietf-rfc793>>) TFTP:: - Trivial File Transfer Protocol (_IETF RFC 1350_ <<ietf-rfc1350>>) + Trivial File Transfer Protocol; (_IETF RFC 1350_ <<ietf-rfc1350>>) TRX:: - Transceiver; Element of a BTS serving a single carrier + Transceiver; element of a BTS serving a single carrier u-Boot:: - The name of a boot loader used in a lot of embedded systems + Boot loader used in various embedded systems UBI:: - A MTD wear leveling system to deal with NAND flash in Linux + An MTD wear leveling system to deal with NAND flash in Linux UBL:: - The name for the initial bootloader loaded by the TI Davinci SoC + Initial bootloader loaded by the TI Davinci SoC UDP:: User Datagram Protocol (_IETF RFC 768_ <<ietf-rfc768>>) UICC:: - Universal Integrated Chip Circuit. A smart card according to _ETSI + Universal Integrated Chip Card; A smart card according to _ETSI TR 102 216_ <<etsi-tr102216>> Um interface:: U mobile; Radio interface between MS and BTS uplink:: - Direction of messages / signals from the mobile phone towards the network + Direction of messages: Signals from the mobile phone towards the network USIM:: - Universal Subscriber Identity Module; Application running on an UICC - to provide subscriber identity for UMTS and GSM networks. + Universal Subscriber Identity Module; application running on a UICC + to provide subscriber identity for UMTS and GSM networks VCTCXO:: - Voltage Controlled, Temperature Compensated Crystal Oscillator. A - precision oscillator, better than a classic Crystal Oscillator, but - inferior to an OCXO. + Voltage Controlled, Temperature Compensated Crystal Oscillator; a + precision oscillator, superior to a classic crystal oscillator, but + inferior to an OCXO VPLMN:: Visited PLMN; the network in which the subscriber is currently - registered. May differ from HPLMN when on roaming. + registered; may differ from HPLMN when on roaming VTY:: - Virtual TeletYpe. A textual command-line interface for configuration - and introspection. + Virtual TeletYpe; a textual command-line interface for configuration + and introspection, e.g. the OsmoBSC configuration file as well as + its telnet link on port 4242 |