All terminology and Alachtasrat design / engineer Ahmad Nagib

[ahmednagib22]

[BB5 - base band 5

BCC - Base-station Color Code

B-CDMA - Broadband Code Division Multiple Access

BCH - Broadcast Channels( carry only downlink information and are mainly responsible for synchronisation and frequency correction (BCCH, FCCH and SCH)

BCCH - Brodcast Control Channel
the logical channel used in cellular networks to broadcast signalling and control information to all mobile phones within the network

BER - Bit Error Rate; the percentage of received bits in error compared to the total number of bits received

BERT - Bit Error Rate Test


BGA - ball grid array

BHCA - Busy Hour Call Attempts( the number of call attempts made during a network’s busiest hour of the day)

B-ISDN - Broadband ISDN

BPS - Bits Per Second
( a measure of how fast binary digits can be sent through a channel. The number of 0s and 1s that travel down the channel per second.)


BREW - Binary Runtime Environment for Wireless
BREW - is an open source application development platform for wireless devices equipped for code division multiple access BREW makes it possible for developers to create portable applications that will work on any handsets equipped with CDMA chipsets. A similar and competing platform is J2ME (**** 2 Micro Edition), from SunMicrosystems.


BSC - Base Station Controller
BSS - Base Station System
Base Station Subsystem
BSIC - Base Station Identity Code or
Base transceiver Station Identity Code


BTS - Base Transceiver Station
(This device allows communication between phones and cellular network or it is the network entity which communicates with the mobile station)





Back -light Illumination
illuminates a wireless device’s display and keypad for better low light viewing
Band :
a specific range of frequencies in the radio frequency (RF) spectrum.



Battery:
A chargeable device which provides the mobile phone with power. A variety of battery technologies have been used for mobile phones including nickel cadmiu(NiCad),nickel ****l hydride (NiMH) and lithium ion (Li-ion)
Battery status/Battery charge display
An indication of the amount of battery life remaining
Battery Capacity the capacity of wireless devices’ battery. Measured in milliampere hours (mAh).
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C1 - path loss-criterium

C2 - cell-reselection criterion


Call barring
A service which enables users to bar certain incoming or outgoing calls on their mobile phones

Call timer:
A service which keeps track of the amount of airtime being used by the subscriber on a cumulative basis

Call divert:
The capability to divert incoming calls to another phone (fixed or mobile) or to an answering service

Call hold:
The ability to put an ongoing call on hold whilst answering or making a second call

Caller ID:
Caller Identification (displays the name/number of the person calling a mobile phone. Also known as CLI)

CAI - Common Air Interface
( a standard developed for the UK’s public CT2 networks which enabled the same handset to be used on different networks)

CAMEL - Customised 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 CAMEL)

CB - Cell Broadcast


CC - Call Control(manages call connections)

CCB - Customer Care and Billing

CCCH - Common Control Channels; a group of uplink and downlink channels between the MS and the BTS (see PCH, AGCH and RACH)


CCONT- Current Controller (in nokia fones)

CCS7 - Common Channel Signalling No. 7



CDMA - Code Division Multiple Access
(Code Division Multiple Access; also known as spread spectrum (or IS-95), 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-95

CDMA2000:
A member of the IMT-2000 3G family; backwardly compatible with cdmaOne

CDMA 1X:
The first generation of cdma2000; the standardisation process indicated that there would be CDMA 2X and CDMA 3X but this no longer appears likely

CDMA 1X EV-DO:
A variant of CDMA 1X which delivers data only

CDPD - Cellular Digital Packet Data (a packet switched data service largely deployed in the USA. The service uses idle ****ogue channels to carry the packetised information.)

CDPSK - Coherent Differential Phase Shift Keying

CDR - Call 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 ********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



Cell Site:
a fixed cellular tower and radio antenna that handles communication with subscribers in a particular area or cell. A cellular network is made up of many cell sites, all connected back to the wired phone system.

CELP:
Code Excited Linear Prediction; an ****ogue to digital voice coding scheme, there are a number of variants used in cellular systemsCEPT - Conference of European Posts and Telecommunications.

(A organisation of national posts, telegraphs and telephone administrations. Until 1988, when this work was take over by ETSI, the main European body for telecommunications standardisation. CEPT established the original GSM standardisation group)

CF - Call Forwarding

CI - Carrier to Interference ratio

CIBER - Cellular Intercarrier Billing Exchange Roamer Record

CID - Caller 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

CLID - Calling Line Identification

CLIP - Calling Line Identification Presentation
CLIR - Calling Line Identification Restriction
CM - Connection Management(it is used to set up, maintain and take down call connections)

CNR - carrier to noise ratio
CNT- Content



COBBA- Common Baseband ****og

CPE - Customer Premises Equipment; all the equipment on the end user’s side of the network interface

CPU - Central Processing Unit

CMOS - Complementary ****l Oxide Substrate


Codec:
A word formed by combining coder and decoder the codec is a device which encodes and decodes signals. The voice codec in a cellular network converts voice signals into and back from bit strings. In GSM networks, in addition to the standard voice codec, it is possible to implement Half Rate (HR) codecs and Enhanced Full Rate (EFR) codecs

Control signal:
A signal sent to a cellular phone from a base station or vice versa which carries information essential to the call but not including the audio portion of a conversation

CRC - Cyclic Redundancy Check

CRM - Customer Relationship Management


CSE - CAMEL Service Environment

CSS - Customer Support System

CT - Cordless Telephony

CT0:
Zero generation cordless telephony; the earliest domestic cordless phones which used ****ogue technology and which had severe limitations in terms of range and security


CT2:
Second generation cordless telephony;

CT1:
First generation cordless telephony; Improved ****ogue phones with greater range and security; a number of European nations produced CT1 standards

CT2-CAI:
Second generation cordless telephony-common air interface
(Using digital technology CT2 phones offered greater range, improved security and a wide range of new functionalities. Used in both domestic and cordless PABX deployments, CT2 was standardised as an interim ETS but was overwhelmed by DECT)

CTA - Cordless Terminal Adaptor (a DECT term)

CTM - Cordless Terminal Mobility

CTR - Common Technical Regulation

CUG - Closed User Group


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D/A - Digital to ****ogue conversion

DAC - Digital to ****ogue Convertor

DAMA - Demand Assigned Multiple Access

D-AMPS - Digital AMPS, a US wireless standard also known as IS-136

DAN - DECT Access Node



Data capable:
Mobile phones which have the capability to enable transmission of data from a laptop computer or PDA via the phone

Datacable : interface for conecting a mobile fone to pc

db - decibel (unit if sound)
DB - Dummy Burst; transmitted as a filler in unused timeslots of the carrier
DCT /3,4 - digital core technology

DCT/L - digital core technology linda


DCCH - Digital Control Channel
DTCH - Digital Traffic Channel
DTX - Discontinous Transmission Exchange

DCA - Dynamic Channel Assignment

DCCH - Dedicated Control Channels
( responsible for roaming, handovers, encryption etc)

DCE - Data Communications Equipment

DCH - Data Clearing House

DCPSK - Differentially Coherent Phase Shift Keying

DCS1800 - Digital Cellular System at 1800MHz, now known as GSM1800


DECT - Digitally Enhanced Cordless Telecommunications system, a second generation digital cordless technology standardised by ETSI

DEPSK - Differential Encoded Phase Shift Keying

DES - Digital Encryption Standard



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[XxTQxX]

nice info good work thanks man !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!