Daftar Istilah Telekomukasi

1xRTT (One times Radio Transmission Technology)—The first version of CDMA2000 technology that has peak downlink speeds of 307 Kbps and uplink speeds of 144 Kbps.

1xEV-DO (One times Evolution Data Optimized)—The first phase of 1xEV technology that increases peak download speeds to 2.4 Mbps.

2G (second generation)—The second generation of mobile phone technology introduced during the 1990s. This generation added data capabilities to mobile phones, including Internet and email access.

3G (third generation)—Third-generation mobile phone technology appeared in the 2000s and forms the foundation of our current mobile phone capabilities.
3G technology offers even faster Internet access, plus enables worldwide
roaming capabilities.

4G (fourth generation)—The next generation of wireless technology that goes beyond what is currently available.
The various industry groups driving development expect 4G technology to offer increased voice, video, and multimedia capabilities; a higher network capacity; improved spectral efficiency; and high-speed data rates over current 3G benchmarks.

Access network—A network that grants end users access to the network core and network services.

AIMS (Advances to IP Multimedia Subsystem)—Advances proposed to the subsystem supporting multimedia sessions, standardized by 3GPP.

Air interface—The radio link between a user’s mobile device and the wireless carrier’s base station.

AWAWS(Advanced Wireless Services)—The wireless telecommunications spectrum band that’s used for wireless voice, data, messaging services, and multimedia.

CDMA (Code Division Multiple Access)—A method for sending multiple voice and/or data signals simultaneously across the radio spectrum.

DFE (Decision Feedback Equalizer)—A channel equalization technology of MIMO to help deliver good performance and high data rates.

eNodeB (Evolved Node B)—An integrated LTE base station and radio network controller that manages radio resources, performs subscriber scheduling, and initiates connections to the air interface.

FDD (Frequency Division Duplex)—A duplexing scheme in wireless communications used in voice-only applications that supports two-way radio communications by using two distinct radio channels.

GPRS (General Packet Radio Service)—A packet-based wireless communications service that offers peak data rates of 56 Kbps to 114 Kbps, while maintaining a continuous Internet connection for mobile devices.


GSM (Global System for Mobile Communications)—A 2G digital wireless telephony system that uses a variation of TDMA (Time Division Multiple Access) for network access.

HSDPAPA (High-Speed Downlink Packet Access)—A 3G wireless telephony protocol derived from the HSPA protocols that enable UMTS-based networks to have higher data transfer speeds and capacity.

HSPAPA (High-Speed Packet Access)—A collection of wireless telephony protocols that improve upon the performance offered by UMTS. HSPA consists of two existing protocols: HSDPA and HSUPA.

HSUPAPA (High-Speed Uplink Packet Access)—A 3G wireless telephony protocol derived from the HSPA protocols that offer peak uplink speeds of up to 5.76 Mbps.

IMS (IP Multimedia Subsystem)—The network architectural framework for delivering multimedia to mobile devices.

LTE (Long Term Evolution)—A 4G technology proposed and developed by 3GPP to improve the UMTS wireless standard.

MIMO (Multiple-Input and Multiple-Output)—A smart antenna technology that uses multiple antennas at the transmitter and receiver to improve communications performance.

MLSE (Maximum Likelihood Sequence Estimator)—An algorithm that is one of a number of techniques developed for processing signals with intersymbol interference. MLSE is used to minimize the probability of error within the radio channel.

OFDM (Orthogonal Frequency-Division Multiplexing)—A frequency-division multiplexing scheme used as a digital multi-carrier modulation method primarily used to carry data across a number of subcarriers. OFDM helps negate severe channel conditions and offers greater spectral efficiency.

OFDMA (Orthogonal Frequency-Division Multiple Access)—A multi-user version of OFDM.

PARPAR (Peak to Average Ratio)—The ratio of the instantaneous peak value or maximum magnitude of a signal parameter to its time-averaged value.

RANRAN(Radio Access Network)—The part of the wireless network that is positioned between mobile devices and the wireless carrier’s core network. The term RAN is often used to describe GSM, UMTS, and other wireless technology standards.

RTRTD(Round Trip Delay)—RTD is a measurement of the overall delay encountered on both the transmit and receive direction.

SC-FDMA (Single Carrier Frequency-Division Multiple Access)—Similar to OFDM, SC-FDMA is a frequency-division multiplexing scheme that can operate either as a linearly precoded OFDMA scheme or a single-carrier multiple access scheme. SC-FDMA is the uplink multiple access scheme in LTE.

SFN (Single Frequency Network)—A broadcast network where multiple transmitters send the same signal simultaneously over the same frequency channel.

TCP/IP (Transmission Control Protocol/Internet Protocol)—A collection of communications protocols used to connect hosts to each other on the Internet.

TDD (Time Division Duplex)—A duplexing scheme in wireless communications that uses a single radio frequency to transmit in both the downstream and upstream directions.

UMTS (Universal Mobile Telecommunications System)—A 3G broadband service that allows for the packet-based transmission of text, digitized voice, video, and multimedia content.

UWB (Ultra-Wideband)—A wireless technology that enables the transmission of data over a large bandwidth (greater than 500 MHz).

WiMAX (Worldwide Interoperability for Microwave Access)—A technology proposed by IEEE as a wireless standard for point-to-point communications and cellular access.