GSM - Useful Acronyms. The following is a compiled list of mobile terms and acronyms taken from a GSM Association supported publication. GThe first generation of analogue mobile phone technologies including AMPS, TACS and NMT2. GThe second generation of digital mobile phone technologies including GSM, CDMA IS- 9. D- AMPS IS- 1. 36. GThe enhancement of GSM which includes technologies such as GPRS3. GThe third generation of mobile phone technologies covered by the ITU IMT- 2.

GPPThe 3rd Generation Partnership Project, a grouping of international standards bodies, operators and vendors with the responsibility of standardising the WCDMA based members of the IMT- 2. GPP2. The counterpart of 3. GPP with responsibility for standardising the CDMA2. Error Resource Conflict Pci Serial Bus Controller In Slot 1 Motherboard. IMT- 2. 00. 0 family.

GSM Useful Acronyms - Learn European Mobile Communication Standard GSM basics along with billing concepts associated with GSM technology and GSM Mobile Phones. What is IMEI, A5, and GSM Location Tracking? The International Mobile Station Equipment Identity or IMEI is a number, usually unique, used by a GSM network to.

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GPP2 is spearheaded by ANSI8. PSKOctantal Phase Shift Keying. Back to top. A5/1/2/3/8. XEncryption algorithms for GSM networks. AALATM Adaptation Layer. ABRAvailable Bit Rate. A- bis. Interface between the BSC and BTS in a GSM network.

ABAccess Burst; used for random access and characterised by a longer guard period to allow for burst transmission from a MS that does not know the correct timing advance when first contacting a network. ACTEApprovals Committee for Terminal Equipment. ACTSAdvanced Communications Technologies and Services, an European technology initiative. ACUAntenna Combining Unit. ADPCMAdaptive Differential Pulse Code Modulation; a form of voice compression that typically uses 3. AFCAutomatic Frequency Control. AGCHAccess Grant Channel; downlink only, BTS allocates a TCH or SDCCH to the MS, allowing it access to the network.

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Air interface. In a mobile phone network, the radio transmission path between the base station and the mobile terminal. A- interface. Interface between the MSC and BSS in a GSM network. AMAmplitude Modulation.

AMPSAdvanced Mobile Phone System, the analogue mobile phone technology used in North and South America and in around 3. Operates in the 8. MHz band using FDMA technology. AMRAdaptive Multi- Rate codec. Developed in 1. 99.

GSM networks, the AMR has been adopted by 3. GPP for 3. GAnalogue. The representation of information by a continuously variable physical quantity such as voltage. ANSIAmerican National Standards Institute. An non- profit making US organisation, which does not carry out standardisation work but reviews the work of standards bodies and assigns them category codes and numbers. ANSI- 1. 36. See D- AMPSAPIApplication Program Interface. Ao. CAdvice of Charge.

ARIBAssociation of Radio Industries and Businesses. An organisation established by Japan's Ministry of Posts and Communications to act as the standardisation authority for radio communication and broadcasting. ARPUAverage Revenue Per User. ASCIIAmerican Standard Code for Information Interchange. ASICApplication Specific Integrated Circuit.

ASPApplication Service Provider. Asymmetric Transmission. Data transmissions where the traffic from the network to the subscriber is at a higher rate than the traffic from the subscriber to the network. A- TDMAAdvanced Time Division Multiple Access. ATMAsynchronous Transfer Mode; a multiplexed information transfer and switching method in which the data is organised into fixed length 5. AUCAuthentication Centre; the element within a GSM network which generates the parameters for subscriber authentication.

Back to top. Bandwidth. A term meaning both the width of a transmission channel in terms of Hertz and the maximum transmission speed in bits per second that it will support. BCHBroadcast Channels; carry only downlink information and are mainly responsible for synchronisation and frequency correction (BCCH, FCCH and SCH)BCCHBroadcast Control Channel; the logical channel used in cellular networks to broadcast signalling and control information to all mobile phones within the network.

B- CDMABroadband Code Division Multiple Access. B- ISDNBroadband ISDNBERBit Error Rate; the percentage of received bits in error compared to the total number of bits received. BERTBit Error Rate Test. Bit. A bit is the smallest unit of information technology. As bits are made up using the binary number system, all multiples of bits must be powers of two, i.

Transmission speeds are given in bits per second (bit/s)Bluetooth. A low power, short range wireless technology designed to provide a replacement for the serial cable. Operating in the 2. GHz ISM band, Bluetooth can connect a wide range of personal, professional and domestic devices such as laptop computers and mobile phones together wirelessly. BHCABusy Hour Call Attempts; the number of call attempts made during a network's busiest hour of the day.

BSCBase Station Controller; the network entity controlling a number of Base Transceiver Stations. BSSBase Station System/Subsystem. BTSBase Transceiver Station; the network entity, which communicates with the mobile station. Back to top. CAICommon Air Interface; a standard developed for the UK's public CT2 networks which enabled the same handset to be used on different networks.

CAMELCustomised Application for Mobile network Enhanced Logic; an IN feature in GSM networks that enables users to carry personal services with them when roaming into other networks that support CAMELCSECAMEL Service Environment. Capacity. A measure of a cellular network's ability to support simultaneous calls.

CBCell Broadcast. CCCall Control; manages call connections. CCBCustomer Care and Billing. CCCHCommon Control Channels; a group of uplink and downlink channels between the MS and the BTS (see PCH, AGCH and RACH)CCS7. Common Channel Signalling No. CDMACode Division Multiple Access; also known as spread spectrum, CDMA cellular systems utilise a single frequency band for all traffic, differentiating the individual transmissions by assigning them unique codes before transmission.

There are a number of variants of CDMA (see W- CDMA, B- CDMA, TD- SCDMA et al)CDMAone. The first commercial CDMA cellular system; deployed in North America and Korea; also known as IS- 9. Aol Money And Daily Finance Quotes here. CDMA2. 00. 0A member of the IMT- 2. G family; backwardly compatible with cdma. One. CDMA 1. XThe first generation of cdma.

CDMA 2. X and CDMA 3. X but this no longer appears likely CDMA 1.

X EV- DOA variant of CDMA 1. X which delivers data only. CDPDCellular Digital Packet Data; a packet switched data service largely deployed in the USA. The service uses idle analogue channels to carry the packetised information. CDPSKCoherent Differential Phase Shift Keying.

CDRCall Detail Records; the record made within the cellular network of all details of both incoming and outgoing calls made by subscribers, The CDR is passed to the billing system for action. Cell. The area covered by a cellular base station. A cell site may sectorise its antennas to service several cells from one location. Cell site. The facility housing the transmitters/receivers, the antennas and associated equipment.

Cell splitting. The process of converting a single cell to multiple cells by sectorising the antennas in the cell site or constructing additional cells within a cell site. CELPCode Excited Linear Prediction; an analogue to digital voice coding scheme, there are a number of variants used in cellular systems. CEPTConference of European Posts and Telecommunications. A organisation of national posts, telegraphs and telephone administrations.

Until 1. 98. 8, when this work was taken over by ETSI, the main European body for telecommunications standardisation. CEPT established the original GSM standardisation group. CFCall Forwarding. CICarrier to Interference ratio. CIBERCellular Intercarrier Billing Exchange Roamer Record. CIDCaller Identification. Circuit switching.

A method used in telecommunications where a temporary dedicated circuit of constant bandwidth is established between two distant endpoints in a network. Mainly used for voice traffic; the opposite of packet switching. CLIDCalling Line Identification.

CLIPCalling Line Identification Presentation. CLIRCalling Line Identification Restriction.