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16-QAM 16-Phase Quadrature Amplitude Modulation Dieu che bien do cau phuongpha 16 muc.1G The first generation of analogue mobile phone technologies including AMPS,TACS and NMT The he thu nhat cua cong nghe dien thoai di dong bao gom AMPS,TACS v NMT2.5G The enhancement of GSM which includes technologies such as GPRS Sunang cap cua GSM bao gom cac cong nghe nhu GPRS2G The second generation of digital mobile phone technologies including GSM,CDMA IS-95 and D-AMPS IS-136 The he thu hai cua cac cong nghe dien thoai so baogom GSM, CDMA IS-95 va D-AMPS IS-963G The third generation of mobile phone technologies covered by the ITU IMT-2000family The he thu ba cua cac cong nghe dien thoai di dong duoc bao phu boi ho ITUIMT-20003GPP The 3rd Generation Partnership Project, a grouping of international standardsbodies, operators and vendors with the responsibility of standardising the WCDMA basedmembers of the IMT-2000 family Du on hung von the he thu ba, su hop thnh nhumcua cac nhom tieu chuan, nha hoat dong va nguoi ban quoc te voi nhiem vu tieu chuanhoa WCDMA dua tren cac thanh vien cua IMT-20003GPP(2) Third Generation Partnership Project (2) Du on hung chung von the hethu 3 (2)64-QAM 64-Phase Quadrature Amplitude Modulation Dieu che bien do cau phuongpha 64 muc8PSK Octant Phase Shift Keying Khua dich pha 8 mucA5/1/2/3/8X Encryption algorithms for GSM networks Thuat toon mat mo hua cho

mang GSMAAL ATM Adaptation Layer Lop tuong thich ATMAB Access Burst Cum truy capA-bis Interface between the BSC and BTS in a GSM network Giao tiep giua BSC vBTS trong mang GSMABR Available Bit Rate Toc do bit co gia triACTS Advanced Communications Technologies and Services a European technologyinitiative Cung nghe v dich vu thung tin tien boACU Antenna Combining Unit Don vi to hop antenADC Analog-to-Digital Converter Bo chuyen doi tuong tu-soADPCM Adaptive Differential Pulse Code Modulation; a form of voice

compression that typically uses 32kbit/s Dieu che mo xung vi sai thoch nghi; motdang cua non thoai co ban su dung 32 kbpsADSL Asymmetric Digital Subscriber Line Duong day thue bao so batdoi xungAES Advanced Encryption Standard Chuan mat mo cao capAFC Automatic Frequency ControlDieu khien tan so tu dongAGCH Access Grant Channel; downlink only, BTS allocates a TCH or SDCCH to theMS, allowing it access to the network Kenh tro giup truy cap, chi co duong xuong,BTS cap phat mot TCH hoac SDCCH den MS, cho phep no truy cap den mangAHB Advanced High-performance Bus Bus hieu suat cao tien boA-interface Interface between the MSC and BSS in a GSM network Giao tiep giua

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MSC v BSS trong mang GSMAir interface In a mobile phone network, the radio transmission path between the basestation and the mobile terminal Trong mang dien thoai di dong, duong truyen danvo tuyen giua tram goc va dau cuoi di dongAM Amplitude Modulation Dieu che bien doAMPS Advanced Mobile Phone System He thong dien thoai di dong cao capAMR Adaptive Multi-Rate codec. Developed in 1999 for use in GSM networks, theAMR Bo bion-giai mo da toc do thich nghi. Duoc phat trien vao nam 1999 de su dungtrong mang GSM, AMRAnalogue The representation of information by a continuously variable physicalquantity such as voltage Su tronh by cua thung tin bang mot luong vat ly co thethay doi lien tuc nhu dien apANSI American National Standards Institute Vien tiou chuan quoc gia Hoa Ky

APB Advanced Peripheral Bus Bus ngoai vi cao capAPI Application Program Interface Giao tiep chuong tronh ung dungARIB Association of Radio Industries and Businesses Su lion ket cung nghe vutuyen v kinh doanhASCII American Standard Code for Information Interchange Mo tiou chuan HoaKy cho Trao doi thong tinASP Application Service Provider Nh cung cap dich vu ung dungA-TDMA Advanced Time Division Multiple Access Da truy cap phan chia theotan so cao capATM Asynchronous Transfer ModeChe do truyen bat doi xungATM-CS ATM Convergence Sublayer Lop con hoi tu ATM

AUC Authentication Centre; the element within a GSM network which generates theparameters for subscriber authentication Trung tom nhan thuc, thnh phan trongmang GSM nu phot coc thung so cho nhan thuc thuo baoAWS Advanced Wireless Services Dich vu vu tuyen cao capBCCH Broadcast Control Channel Kenh dieu khien quang baB-CDMA Broadband Code Division Multiple Access Da truy cap phan chia theomo bang rongBCH Broadcast Channels; carry only downlink information and are mainly responsiblefor synchronisation and frequency correction (BCCH, FCCH and SCH) Kenh quangba; chi mang thong tin duong xuong va chu yeu chiu trach nhiem cho dong bo va hieuchinh tan so (BCCH, FCCH va SCH)

BER Bit Error Rate; the percentage of received bits in error compared to the totalnumber of bits received Ti le loi bit, Phan tram cua bit nhan duoc bi loi so voi tongso bit nhan duocBERT Bit Error Rate Test Kiem tra ti le loi bitBGCF Breakout Gateway Control Function Chuc nang dieu khien cong breakoutBHCA Busy Hour Call Attempts Thu cuoc goi gio cao diemBICN Bearer Independent Core Network Mang lui doc lap truyen tinB-ISDN Broadband ISDN ISDN bang rongBPSK Binary Phase-Shift Keying Khua dich pha nhi phonBS Base Station Tram goc

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BSC Base Station Controller Dieu khien tram gocBSS Base Station System/Subsystem He thong/he thong con tram gocBTS Base Transceiver Station (base station) Tram thu phot goc (tram goc)BTS Base Transceiver Station; the network entity which communicates with themobile station Tram thu phot goc, thuc the mang thong tin voi tram di dong.BWA Broadband Wireless Access Truy cap vo tuyen bang rongCAI Common Air Interface Giao tiep khung kho chungCB Cell Broadcast Quang bo cellCC Call Control; manages call connections Dieu khien cuoc goi; quan ly ket noicuoc goiCCCH Common Control Channels; a group of uplink and downlink channels between theMS and the BTS (see PCH, AGCH and RACH) Kenh dieu khien chung, mot nhomcac kenh duong len va duong xuong giua MS va BTS (PCH, AGCH va RACH)

CCS7 Common Channel Signalling No. 7 Boo hieu konh chung so 7CDMA Code Division multiple Access Da truy cap phan chia theo moCDMA 1X The first generation of cdma2000; the standardisation process indicatedthat there would be CDMA 2X and CDMA 3X but this no longer appears likely The hethu nhat cua cdma2000; quo tronh chuan hua chi ra rang su cu CDMA 2X v CDMA 3Xnhung dieu nay co the lau hon nuaCDMA 1X EV-DO A variant of CDMA 1X which delivers data only Mot thay doicua CDMA 1X no chi phan phoi du lieuCDMA2000 A member of the IMT-2000 3G family; backwardly compatible withcdmaOne Mot thnh vion cua ho IMT-2000 3G; canh tranh tro lai voi cdmaOneCDPD Cellular Digital Packet Data; a packet switched data service largely deployed in

the USA. The service uses idle analogue channels to carry the packetised information.Du lieu goi so te bao, mot dich vu chuyen mach goi duoc trien khai rong roi o My.Thiet bi su dung konh tuong tu roi de mang thong tin dong goiCDPSK Coherent Differential Phase Shift Keying Khua dich pha vi sai ket hopCDR Call Detail Records; Ghi om chi tiet cuoc goiCEPT Conference of European Posts and Telecommunications. Hoi Nghi Buu chinhva vien thong Chau AuCF Call Forwarding Huong cuoc goiCI Carrier to Interference ratio Ti so sung mang tron nhieuCID Caller Identification Nhan dang nguoi goiCLID Calling Line Identification Nhan dang duong day goi

CM Connection Management; is used to set up, maintain and take down callconnections Quan ly ket noi; duoc su dung de thiet lap, duy tro v giai phung ket noicuoc goiCodec A word formed by combining coder and decoder the codec is a device whichencodes and decodes signals. The voice codec in a cellular network converts voicesignals into and back from bit strings. In GSM networks, in addition to the standard voicecodec, it is possible to implement Half Rate (HR) codecs and Enhanced Full Rate (EFR)codecs Mot tu duoc honh thnh boi su ket hop coder v decoder, codec l mot thiet bi mohua v giai mo ton hieu. Codec thoai trong mang te bo chuyen doi tin hieu thoan thanhva tro ve tu chuoi bit. Trong mang GSM, them vao codec thoai tieu chuan, no co the thuchien ban toc do (HR) va toc do day du nang cao (EFR)

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COFDM Coded OFDM OFDM duoc mo huaCPE Customer Premises Equipment; all the equipment on the end users side of thenetwork interface Thiet bi phia khach hang; tat ca thiet bi tren phia dau cuoi nguoi sudung cua giao tiepCPS Common Part Sublayer Lop con phan chungCPU Central Processing Unit Don vi xu ly trung tomCRC Cyclic Redundancy Code Mo du chu kyCRM Customer Relationship Management Quan ly moi quan he khoch hngCSCF Call State Control Function Chuc nang dieu khien trang thai cuoc goiCSS Customer Support System He thong ho tro khoch hngCT Cordless Telephony Dien thoai khung doyCT0 Zero generation cordless telephony; the earliest domestic cordless phones whichused analogue technology and which had severe limitations in terms of range and security

Dien thoai khong day the he thu 0; dien thoai khong day trong nha som nhat no sudung cong nghe tuong tu va co gioi han du doi ve khoang cach bao matCT1 First generation cordless telephony; Improved analogue phones with greater rangeand security; a number of European nations produced CT1 standards Dien thoaikhong day the he dau tien, Dien thoai tuong tu duoc cai tien voi khoang cach va bao matlon hon; Nhieu quoc gia Chau Au do san xuat tiou chuan CT1CT2 Second generation cordless telephony; Using digital technology CT2 phonesoffered greater range, improved security and a wide range of new functionalities. Used inboth domestic and cordless PABX deployments, CT2 was standardised as an interim ETSbut was overwhelmed by DECT Dien thoai khong day the he thu 2; Viec su dungdien thoai CT2 cong nghe so cung cap khoang cach lon hon, bao mat duoc cai thien va

khoang cach cua cac chuc nang moi. Duoc su dung trong ca nha o va trien khai PABXkhong day, CT2 duoc chuan hoa nhu mot qua do ETS nhung duoc lan ap boi DECTCT2-CAI Second generation cordless telephony-common air interface Dienthoai khong day the he thu hai giao tiep khong khi chungCTA Cordless Terminal Adaptor; a DECT term Bo tuong thich dau cuoi khong day;CTM Cordless Terminal Mobility Dau cuoi di dong khong dayCUG Closed User Group Nhom nguoi su dung dungD/A Digital to Analogue conversion Chuyen doi so sang tuong tuDAB Digital audio Broadcast Quang bo om thanh soDAC Digital to Analogue Convertor Bo chuyen doi so sang tuong tuD-AMPS Digital AMPS, a US wireless standard also known as IS-136 AMPS

so, mot chuan khong day duoc biet nhu IS-136DAN DECT Access Node Nyt truy cap DECTDB Dummy Burst; transmitted as a filler in unused timeslots of the carrier Cumgia, duoc phat nhu mot bo loc o cac khe thoi gian khong duoc su dung cua song mangDCA Dynamic Channel Assignment An dinh kenh dongDCCH Dedicated Control Channels; responsible for roaming, handovers, encryption etc.(See SDCCH, SACCH and FACCH) Kenh dieu khien danh rieng; chiu trach nhiem chochuyen vung, chuyen giao, mat mo hua,..(SDCCH, SACCH v FACCH)DCE Data Communications Equipment Thiet bi thung tin du lieuDCPSK Differentially Coherent Phase Shift Keying Khua dich pha ket hop vi sai

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DCS1800 Digital Cellular System at 1800MHz, now known as GSM1800 Hethong te bo so o 1800 MHz, hien nay duoc biet nhu GSM1800DEPSK Differential Encoded Phase Shift Keying Khua dich pha mo hua vi saiDES Digital Encryption Standard Chuan mat mo soDFSK Double Frequency Shift Keying Khua dich tan kopDHCP Dynamic Host Configuration Protocol Giao thuc cau honh Host dongDigital a method of representing information as numbers with discrete values; usuallyexpressed as a sequence of bits Mot phuong phap tronh by thung tin nhu so voi giatri roi rac; thuong thuong bieu dien nhu chuoi bitDL Downlink Duong xuongDMA Direct Memory Access Truy cap bo nho truc tiepDPCM Differential Pulse Code Modulation Dieu xung mo vi saiDPSK Digital Phase Shift Keying Khua dich pha so

DQPSK Digital Quadrature Phase Shift Keying Khoa dich pha cau phuong soDS-CDMA Direct Sequence CDMA CDMA trai pho truc tiepDSL Digital Subscriber Line Duong day soDSLAM Digital Subscriber Line Access Multiplexer Bo ghep kenh truy cap duongday thue bao soDSP Digital Signal Processing Xu ly ton hieu soDTE Data Terminal Equipment Thiet bi dau cuoi du lieuDTMF Dual Tone MultiFrequency; better know as Touch Tone. The tones generated bytouching the keys on the phone are used for a variety of purposes including voice mailsystems and voice messaging Mo da tan. Cac tone duoc phat boi viec cham vao cac khoatren dien thoai duoc su dung cho muc dich khac nhau nhu he thong mail thoai va tin nhan

thoai.DTX Discontinuous Transmission Truyen dan khung lion tucDual Band The capability of GSM infrastructure elements and handsets to workacross both the 900MHz and 1800MHz bands. The capability to seamlessly handoverbetween the two bands offers operators major capacity gains Kha nang cua co soha tang GSM, cac thanh phan va thiet bi cam tay lam viec xuyen qua ca bang tan 900 va1800MHz.. kha nang de chuyen giao mot cach lien tuc giua hai bang tan cung cap chonha hoat dong do loi dung luong chu yeuDuplex The wireless technique where one frequency band is used for traffic from thenetwork to the subscriber (the downlink) and another, widely separated, band is used fortraffic from the subscriber to the network (the uplink) Cong nghe khong day o do

mot bang tan duoc su dung cho luu luong tu mang den thue bao (duong xuong) va bangtan khac duoc tach biet nhau duoc su dung cho luu luong tu thue bao den mang (duonglen)DVB Digital Video Broadcast Quang bo video soE1 Wired digital transmission format supporting 2.048 Mbit/s Dinh dang truyen danso co day ho tro 2.048 MbpsECC Error Correction CodeMo hieu chinh loiEDGE Enhanced Data rates for Global Evolution Toc do du lieu nang cao chotien trien toan cauEEPROM Electrically Erasable Programmable Read Only Memory Bo nho chidoc chuong tronh cu the xua bang dien

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EGSM Extended (frequency range) GSM GSM mo rongEIR Equipment Identity Register; a database that contains a list of all valid mobilestations within a network based on their IMEI Thanh ghi nhan dang thiet bi, mot coso du lieu bao gom mot danh sach cac tram di dong co gia tri trong mang dua tren IMEIEPROM Erasable Programmable Read Only Memory Bo nho chi doc chuong tronhcu the xuaErlang A dimensionless unit of average traffic density in a telecommunications network

Mot don vi khong co thu nguyen cua mat do luu luong trung bonh trong mangvien thungESN Electronic Serial Number; a 32-bit number that uniquely identifies a mobilephone So serial dien tu, mot so 32 bit, nhan dang duy nhat mot dien thoai di dongETS European Telecommunications Standard Tiou chuan vien thung Chou uETSI European Telecommunications Standards Institute: The European groupresponsible for defining telecommunications standards Vien tieu chuan vien thongChau Au: nhom nhung nguoi Chau Au dinh nghia cac chuan vien thongEV-DO EVolution - Data Optimised Tien hoa-Toi uu hua du lieuEV-DV EVolution - Data and Voice Tien hua-Du lieu v ThoaiFACCH Fast Associated Control Channel; similar to the SDCCH but used inparallel for operation of the TCH. If the data rate of the SACCH is insufficient borrowingmode is used Kenh dieu khien lien ket nhanh, tuong tu nhu SDCCH nhung duoc su dungsong song cho hoat dong cua TCH. Neu toc do du lieu cua SACCH khong du tho che domuon duoc su dung.FB Frequency Correction Burst; used for frequency synchronisation of the mobile

Cum hieu chinh tan so; duoc su dung cho dong bo tan so cua di dong

FBWA Fixed Broadband Wireless Access Truy cap vo tuyen bang rong co dinhFCCH Frequency Correction Channel; downlink only, correction of MS frequencies,transmission of frequency standard to MS etc. Kenh hieu chinh tan so; chi duongxuong, hieu chinh tan so cua MS, truyen dan chuan tan so den MSFDD Frequency Division Duplex Song cung phon chia theo tan soFDMA Frequency Division Multiple Access-a transmission technique where theassigned frequency band for a network is divided into sub-bands which are allocated to asubscriber for the duration of their calls Da truy cap phan chia theo tan so- mot kythuat truyen dan o do bang tan duoc an dinh cho mang duoc phan chia thanh cac bang tancon, no duoc cap phat den thue bao trong suot qua tronh cuoc goi cua chyngFEC Forward Error Correction Hieu chinh loi truoc

FFT Fast Fourier Transform Bien doi Fourier nhanhFH Frequency Hopping Nhay tanFH-CDMA Frequency Hopping CDMA CDMA nhay tanFLASH-OFDM Fast Low Latency Access with Seamless Handoff - OFDM

Truy cap tre thap nhanh voi chuyen giao lion tuc-OFDMFMC Fixed Mobile Convergence Hoi tu di dong co dinhFMI Fixed Mobile Integration Tich hop di dong co dinhFSK Frequency Shift Keying; a method of using frequency modulation to send digitalinformation Khoa dich tan; mot phuong phap su dung tan so de gui thong tin soFSS Fixed Satellite Service Dich vu ve tinh co dinhGbit/s A unit of data transmission rate equal to one billion bits per second Don vi cua toc

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do truyen dan du lieu bang voi mot trieu bit tren giayGCF Global Certification Forum Dien dan chung nhan toan cauGHz A unit of frequency equal to one billion Hertz per second Don vi tan so bangmot mot trieu Hertz tron gioy.GMPCS Global Mobile Personal Communications by Satellite Thong tin canhan di dong toan cau boi ve tinhGMSC Gateway Mobile Services Switching Centre; the gateway between two networks

Trung tam chuyen mach dich vu di dong cong; Cong giua hai mangGMSK Gaussian filtered Minimum Shift Keying; a refinement of FSK which minimisesadjacent channel interference Khoa dich pha toi thieu duoc loc Gaussian; Viec loc FSKvoi su dieu chinh nho nhat nhieu kenhGPRS General Packet Radio Service Dich vu vu tuyen gui tong hopGRX GPRS Roaming Exchange Trao doi chuyen vung GPRS

GSM Global System for Mobile communication He thong toan cau cho thong tin didongGSM Global System for Mobility He thong toan cau cho di dongHA Home Agent Tram nhHandoff The transfer of control of a cellular phone call in progress from one cell toanother, without any discontinuity Chuyen dieu khien cua mot cuoc goi dien thoai tebao tu mot cell nay den mot cell khac ma khong co bat ky gian doanHDLC High level Data Link Control Dieu khien lien ket du lieu cap do caoHIPERLAN High Performance Radio Local Access Network; a wireless local areanetwork being standardised by ETSI (Also HIPERLAN2) Mang truy cap noi hat votuyen hieu suat cao; mot mang noi hat khong day dang duoc chuan hoa boi ETSI (cung

HIPERLAN2)HLR Home Location Register; the database within a GSM network which stores all thesubscriber data. An important element in the roaming process Thanh ghi dinh vithuong tru; mot co so du lieu trong mang GSM no luu tru tat ca du lieu thuo bao. Motthnh phan quan trong trong quo tronh chuyen vungHSDPA High-Speed Downlink Packet Access Truy cap goi duong xuongtoc do caoHUMAN High-speed Unlicensed MAN MAN khong duoc cap phep toc do caoIEEE Institute of Electrical and Electronics Engineers Vien cua ky su dien va dientuIMEI International Mobile Equipment Identity Nhan dang thiet bi di dong quoc te

IMS IP Multimedia Subsystem He thong con da phuong tien IPIMSI International Mobile Subscriber Identity; an internal subscriber identity used onlyby the networkNhan dang thue bao di dong quoc te; mot nhan dang thue bao noi bo duocsu dung chi boi mangIMT-2000 The family of third generation technologies approved by the ITU. Thereare five members of the family: IMT-DS, a direct sequence WCDMA FDD solutionIMT-TC, a WCDMA TDD solution IMT-MC, a multicarrier solution developed fromcdma2000 IMT-SC, a single carrier solution developed from IS-136/UWC-136 IMT-FT,a TDMA/TDD solution derived from DECT Ho cung nghe the he thu ba duoc phe chuanboi ITU. Co nam thanh vien cua ho: IMT-DS, IMT-TC giai phap WCDMA FDD chuoitruc tiep, Mot giai phap da song mang duoc phat trien tu cdma2000 IMT-SC, mot giai

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phap don song mang duoc phat trien tu IS-136/UWC-136 IMT-FT, giai phapTDMA/TDD duoc nhan tu DECTIN Intelligent Network Mang thung minhINAP Intelligent Network Application Part Phan ung dung mang thung minhInternet A loose confederation of autonomous databases and networks. Originallydeveloped for academic use the Internet is now a global structure of millions of sitesaccessible by anyone Mot lien bang tu tri long leo co so du lieu va mang. Ban duoc phattrien cho hoc vien, Internet ngay nay la mot cau truc toan cau cua hang trieu vi tri co thetoi duoc boi bat cu nguoi naoIntranet A private network which utilises the same techniques as the Internet but isaccessible only by authorised users Mot mang rieng no su dung cac cong nghe khacnhau nhu Internet nhwgn co the chi toi duoc boi nhung nguoi dung duoc chung thucIP Internet Protocol Giao thuc InternetIP-CAN IP- Connectivity Access Network Mang truy cap ket noi dua tron IPIPv6 The next generation of IP addressing designed to replace the current system IPv4which uses a 32 bit address code which limits the number of possible addresses. IPv6uses a 128 bit code ensuring that the possible number of IP addresses will be virtuallylimitless The he tiep theo cua IP dia chi duoc the ke de thay the cho he thong Ipv4hien hanh su dung 32 bit dia chi gioi han so dia chi co kha nang. Ipv6 su dung 128 bitdam bao so dia chi IP co kha nang se gan nhu vo hanIS-136 Cellular standard also known as TDMA or D-AMPS Tieu chuan te baocung duoc biet nhu TDMA hoac D-AMPSIS-54 The first evolution in the USA from analogue to digital technology. Used a hybridof analogue and digital technology, superseded by IS-136 Su phat trien dau tien o My tu

cong nghe tuong tu den cong nghe so. Su dung ghep cong nghe tuong tu va so duoc thaythe bo IS-136IS-95 Cellular standard know also as cdmaOne Tieu chuan te bao cung biet nhucdmaOneISDN Integrated Services Digital Network Mang so tich hop da dich vuISIM IMS Subscriber Identity Module Modulr nhan dang thuo bao IMSISO International Standards Organisation To chuc tiou chuan quoc teISP Internet Service Provider Nh cung cap dich vu InternetITU International Telecommunications Union Uy ban vien thung quoc teITU-R ITU Telecommunications Radio Sector Khu vuc vu tuyen vien thung ITUITU-T ITU Telecommunications Standardisation Sector Khu vuc tiou chuan hua vien

thung ITULAN Local Area Network Mang noi hatLAP Link Access Protocol Giao thuc truy cap lion ketLMSS Land Mobile Satellite Service Dich vu ve tinh di dong mat datLOS Line of Sight Tam nhon thangMAC Media Access Control; the lower sublayer of the OSI system Dieu khientruy cap moi truong; lop con thap hon cua he thong OSIMAN Metropolitan Area Network Mang vung do thiMAP Mobile Application Part Phan ung dung di dongMbit/s Megabit: a unit of data transmission speed equal to one million bits per second

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Don vi cua toc do truyen dan du lieu bang voi mot trieu bit tren giayMBWA Mobile Broadband Wireless Access Truy cap vo tuyen bang rong di dongMCPA Multi Carrier Power Amplifier Bo khuech dai cong suat da song mangMcps Megachips per second (chip rate) Megachip tron gioyMFSK Multiple Frequency Shift Keying Khoa dich pha da tan soMG Media Gateway Cong da phuong tienMGCF Media Gateway Control Function Chuc nang dieu khien cong da phuong tienMHz Megahertz; a unit of frequency equal to one million Hertz Don vi tan so bangvoi mot trieu HertzMMDS Multichannel Multipoint Distribution Service Dich vu phan phoi dadiem da kenhMMI Man Machine Interface Giao tiep nguoi mayMMS Multimedia Messaging Service; an evolution of SMS, MMS goes beyond text

messaging offering various kinds of multimedia content including images, audio andvideo clips Dich vu tin nhan da phuong tien; su tien hoa cua SMS, MMS vuot qua tinnhan van ban cung cap cac loai khac nhau cua noi dung da phuong tien bao gom anh, amthanh va clip videoMNO Mobile Network Operator Nha van hanh mang di dongMS Mobile Station Tram di dongMSC Mobile Switching Centre; the switching centre of a mobile phone network, theMSC has interfaces to the BSCs, HLR, VLR and other MSCs Trung tam chuyenmach di dong, trung tam chuyen mach cua mang dien thoai di dong, MSC co giao tiepvoi BSC, HLR, VLR va cac MSC khacMSISDN Mobile Station International ISDN Number So ISDN quoc te tram di

dongMSK Minimum Shift Keying; Another term for FFSK Khua dich pha toi thieu; motton khoc cua FFSKMT Mobile Terminal Dau cuoi di dongMVPN Mobile Virtual Private Network Mang rieng ao di dongNA(P)T Network Address (port) Translation Phep dich dia chi (cong) mangNACF Network Access Configuration Function Chuc nang cau honh truy cap mangN-AMPS Narrowband AMPS AMPS bang hepNASS Network Attachment Sub-System He thong con gan vo mangNB Normal Burst; used to carry traffic and control channels except RACH Cumbonh thuong; duoc su dung de mang luu luong va dieu khien kenh loai tru RACH

NGN Next Generation Network Mang the he moiNLOS Non-Line-of-Sight Tam nhon khung thangNMT Nordic Mobile Telephone system; an analogue cellular technology deployed inthe Nordic countries in the late 1970s; variations were also deployed in the Beneluxcountries and in Russia. He thong dien thoai di dong Bac Au; Mot cong nghe te baotuong tu duoc trien khai o cac nuoc Bac Au vao cuoi nhung nam 1970; Nhung bien doicung duoc trien khai o Benelux va NgaNode B The element in a UMTS network which interfaces with the mobile station,analogous to a BTS in a GSM network Mot thanh phan cua mang UTMS no giaotiep voi tram di dong, giong voi BTS trong mang GSM

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O&M Operations and Maintenance Van hanh va bao duongOFDM Orthogonal Frequency Division Multiplexing Ghop konh phon chia theotan so truc giaoOFDMA Orthogonal Frequency Division Multiplexing Access Da truy capphan chia theo tan so truc giaoOMC Operations and Maintenance Centre Trung tam van hanh va bao duongOMC-R The radio OMC OMC vu tuyenOMC-S The switching OMC OMC chuyen machOSA Open Services Architecture Kien tryc dich vu moOSI Open Systems Interconnection; a seven layer model for protocols defined by ISO

Ket noi he thong mo; Mot mu honh bay lop cho coc giao thuc duoc dinh nghia boiISOOSS Operation Support System He thong ho tro van hnh

PACS Personal Access Communication System; a digital cordless technology developedinitially by Bell Labs in the US, PACS was designed to compete with DECT Hethong thong tin truy cap ca nhan; Mot cong nghe khong day so duoc phat trien khoi dauboi Bell Labs o My, PACS duoc thiet ke de canh tranh voi DECTPAP Public Access Profile; a DECT termPCH Paging Channel; downlink only, the MS is informed of incoming calls by the BTSvia the PCH Kenh paging; chi duong xuong, MS duoc thong tin cua cuoc goi den boiBTS thong qua PCHPCM Pulse Code Modulation; the standard digital voice format at 64kbit/s Dieuxung mo; Dinh dang thoai so tiou chuan o 64 kbpsPCMCIA Personal Computer Memory Card Interface Association Hoi lion hiep

giao tiep the nho moy tonh coc nhon.PCN Personal Communications Network; a designation initially used in the UK to referto networks operating in the 1800MHz band (see also DCS1800). Mang thong tin canhan; mot thiet ke duoc su dung dau tien o Anh de am chi mang hoat dong o bang tan1800 MHz (cung biet nhu DCS 1800).PCS Personal Communications Service Dich vu thung tin co nhonPCS 1900 Personal Communications Systems 1900MHz; the terminology used in theUS to describe the new digital networks being deployed in the 1900MHz band; rarelyused today He thong thong tin cac nhan 1900 MHz; thuat ngu duoc su dung o My demo ta mang so moi dang trien khai o bang tan 1900MHz; hiem su dung ngay nayPCU Packet Control Unit; an element in a GPRS/UMTS network Don vi dieu khien so;

mot thanh phan trong mang GPRS/UMTSPDA Personal Digital Assistant Ho tro so co nhonPDC Personal Digital Communications; a digital cellular technology developed anddeployed uniquely in Japan. A TDMA technology, PDC is incompatible with any otherdigital cellular standard Thong tin so ca nhan; Cong nghe te bao duoc phat trien vatrien khai duy nhat o Nhat ban. Cong nghe TDMA, PDCPDF Packet Data Function Chuc nang du lieu goiPDG Packet Data Gateway Cong du lieu guiPDSN Packet Data Serving Node Nyt dich vu du lieu guiPHY Physical Layer Lop vat lyPIN Personal Identifier Number So nhan dang co nhon

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PKI Public Key Infrastructure Ha tang co so khoa cong congPLMN Public Land Mobile Network; any cellular operators network Mang di dongmat dat cong cong; bat ky mang cua nha van hanh te bao naoPMP Point-to-Multipoint Diem toi da diemPMR Private Mobile Radiocommunications; two-way radio technology widely used fordespatch and delivery services, taxi companies and the like. See TETRA Thong tin votuyen di dong ca nhan; hai cong nghe vo tuyen duoc su dung rong rai cho viec gui vaphan phat cac dich vu, nhu cac cong ty taxiPOTS Plain Old Telephone Service Dich vu dien thoai truyen thongPROM Programmable Read Only Memory Bo nho chi doc chuong tronhPSDN Public Switched Data Network Mang du lieu chuyen mach cung congPSK Phase Shift Keying Khua dich phaPSPDN Public Switched Packet Data Network Mang du lieu gui chuyen

mach cung congPSTN Public Switched Telephone Network Mang dien thoai chuyen mach cong congPSU Power Supply Unit Khoi cung cap cung suatPTO Public Telecommunication Operator Nh van hnh vien thung cung congPTP Point to Point Diem toi diemPTT Posts, Telephone and Telegraph Administration Quan ly buu chinh, vienthong va dien tinhPTT Push-to-Talk; a feature of PMR systems Mot dac tinh cua he thong PMRPWT Personal Wireless Telecommunications; a variant of DECT developed for use inthe USA Vien thong vo tuyen ca nhan; mot thay doi cua DECT duoc phat trien chosu dung o My

QAM Quadrature Amplitude Modulation Dieu che bien do cau phuongQAPSK Quadrature Amplitude Phase Shift Keying Khua dich pha bien do cauphuongQoS Quality of Service; a broad term to describe the performance attributes of an end-to-end connection Chat luong dich vu; mot ten thong thuong de mo ta thuoc tinh hieuqua cua ket noi end to endQPSK Quadrature Phase-Shift Keying Khoa dich pha cau phuongRACE Research in Advanced Communications in Europe Nghion cuu thung tin tiontien o Chou uRACH Random Access Channel; uplink only, allows the MS to request an SDCCH inresponse to a page or for a call Konh truy cap ngau nhion; chi duong len, cho phep

MS yeu cau mot kenh SDCCH de dap ung cho nhan tin hoac cho cuoc goiRACS Resource and Admission Control Subsystem He thong con dieu khien tai nguyenva quan lyRAM Random Access Memory Bo nho truy cap ngau nhionRF Radio Frequency Tan so vu tuyenRFP Radio Fixed Part; equivalent to a base station in a DECT system Phan co dinhvo tuyen; Tuong duong voi tram goc trong he thong DECTRNC Radio Network Controller Dieu khien mang vo tuyenRNC Radio Network Controller; the element which controls the Node Bs within aUMTS network. It is roughly analogous to a BSC in a GSM network Dieu khien

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mang vo tuyen; mot thanh phan dieu khien nut BS trong mang UMTS. No tuong tu motcach dai khai voi BSC trong mang GSMRoaming A service unique to GSM which enables a subscriber to make and receivecalls when outside the service area of his home network e.g. when travelling abroad

Mot dich vu duy nhat voi GSM cho phop mot thuo bao thuc hien v nhan cuocgoi khi bon ngoi vung dich vu cua mang nh cua anh ay chang han khi du lich ra nuocngoaiRouter A device which forwards information in a network on a connectionless basis

Mot thiet bi dinh huong thong tin trong mang tren co so khong ket noiRP Radio Part Phan vu tuyenRRM Radio Resource Management, part of the UMTS infrastructure Quan ly tinguyon vu tuyen, phan cua co so ha tang UMTSRT Remote Terminal Dau cuoi tu xaRX Receiver Bo thuSACCH Slow Associated Control Channel; transmits continuous measurements inparallel with operation of TCH or SDCCH; needed for handover decisions Kenh dieukhien lien ket cham; phat lien tuc cac phep do song song voi hoat dong cua TCH hoacSDCCH; can cho quyet dinh chuyen giaoSAP Service Access Point Diem truy cap dich vuSB Synchronisation Burst; used for time synchronisation of the mobil Cum dong bo;duoc su dung cho dong bo thoi gian cua di dongS-CDMA Synchronous CDMA (see CDMA) CDMA dong boSCH Synchronisation Channel; downlink only frame synchronisation and identificationof base station Kenh dong bo; chi dong bo khung duong xuong va nhan dang tram goc

SCM Session Control Manager Quan ly dieu khien phion lm viecSCP Switching/Service Control Point Diem dieu khien dich vu/chuyen machSDCCH Stand-alone Dedicated Control Channel; communications channelbetween the MS and the BTS. Used for signalling during call set-up before a TCH isallocated Kenh dieu khien danh rieng dung mot monh; konh thung tin giua MS vBTS. Duoc su dung cho bao hieu suot qua tronh thiet lap cuoc goi truoc khi mot TCHduoc cap photSDLC Synchronous Data Link Control Dieu khien lien ket du lieu dong boSDMA Spatial Division Multiple Access Da truy cap phan chia theo khong gianSGSN Serving GPRS Support Node Nyt ho tro dich vu GPRSSGSN Serving GPRS Support Node; the gateway between the RNC and the core

network in a GPRS/UMTS network Nyt ho tro dich vu GPRS; cong giua RNC v manglui trong mang GPRS/UMTSSIM Subscriber Identity Module; A smart card containing the telephone number of thesubscriber, encoded network identification details, the PIN and other user data such as thephone book. A users SIM card can be moved from phone to phone as it contains all thekey information required to activate the phone Module nhan dang thue bao; motcard thong minh bao gom so dien thoai cua thue bao, chi tiet nhan dang mang duoc mohua; PIN v du lieu nguoi dung khac nhau danh ba. The SIM cua nguoi su dung co theduoc di chuyen tu dien thoai nay den dien thoai khac, no bao gom tat ca cac thong tin chuyeu duoc yeu cau de kich hoat dien thoaiSIP Session Initiation Protocol Giao thuc khoi tao phion lm viec

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SMS Short Message Service; a text message service which enables users to send shortmessages (160 characters) to other users. A very popular service, particularly amongstyoung people, with 400 billion SMS messages sent worldwide in 2002 Dich vu tinnhan ngan; mot dich vu tin nhan van ban cho phep nguoi su dung gui tin nhan ngan (160ky tu) den nguoi su dung khac. Mot dich vu rat pho bien, dac biet giua nhung nguoi tretuoi, voi 400 ti tin nhan SMS duoc gui quanh the gioi vao nam 2002SMSC SMS Centre-the network entity which switches SMS traffic Trung tam SMS-Thucthe chuyen mach luu luong SMSSMSCB SMS Cell Broadcast Quang bo te bo SMSSMS-MO SMS Mobile Originated Di dong SMS khoi dauSMS-MT SMS Mobile Terminated Di dong SMS ket thucSMS-PP SMS Point to Point SMS diem toi diemSoC System on Chip He thong tron Chip

SP Service Provider Nh cung cap dich vuSQAM Staggered Quadrature Amplitude Modulation Dieu che bien do cau phuongso leSQPSK Staggered Quadrature Phase Shift Keying Khoa dich pha cau phuong soleSS7 Signalling System Number 7 (See CCS7) He thong boo hieu so 7 (CCS7)SSCS Service Specific Convergence Sublayer Lop hoi tu dac trung dich vuSSP Service Switching Point Diem chuyen mach dich vuSTM Synchronous Transfer Mode Che do truyen dan dong boStreaming One way transmission of video and audio content Mot coch truyen dannoi dung honh anh v om thanh

Symbian A company created by Psion, Nokia, Ericsson and Motorola in 1998 withthe aim of developing and standardising an operating system which enable mobile phonesfrom different manufacturers to exchange information The operating system is known asEPOC. Matsushita has subsequently joined Symbian Cong ty duoc tao boi Psion,Nokia, Ericsson va Motorola vao nam 1998 voi muc dich phat trien va chuan hoa hethong hoat dong cho phep dien thoai di dong tu cac nha san xuat khac nhau trao doi thongtin. He thon hoat dong duoc biet nhu EPOC. Matsushita ve sau do gia nhap SymbianT1 Wired digital transmission format supporting 1.544 Mbit/s Dinh dang truyen danso co day ho tro 1.544 MbpsTACS Total Access Communications System (an AMPS variant deployed in a numberof countries principally the UK) He thong thung tin truy cap tong cong (mot thay doi

AMPS duoc trien khai o mot so nuoc phan lon o UKTCH Traffic Channel Kenh luu luongTCP/IP Transfer Control Protocol / Internet Protocol Giao thuc dieu khientruyen dan/ Giao thuc InternetTD-CDMA Time Division CDMA CDMA phon chia thoi gianTDD Time Division Duplex Song cung phon chia theo thoi gianTDD Time Division Duplex; a radio technology for use in unpaired spectrum.WCDMA/UMTS includes a band for TDD mode usage and both PHS and DECT use thistechnology Song cong phan chia theo thoi gian; Cong nghe vo tuyen cho viec su dungpho khong co doi, WCDMA/UMTS bao gom mot bang tan cho su dung che do TDD vaccar PHS va DECT su dung cong nghe nay

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TDMA Time Division Multiple Access; a technique for multiplexing multiple users ontoa single channel on a single carrier by splitting the carrier into time slots and allocatingthese on a as-needed basis Da truy cap phan chia theo thoi gian; mot chong nghe choghep kenh nhieu nguoi su dung thanh mot kenh don tren mot song mang bang cach catsong mang thanh nhieu khe thoi gian va cap phat cac khe nay khi duoc yeu cauTD-SCDMA Time Division - Synchronous Code Division Multiple Access Datruy cap phan chia theo mo dong bo - phan chia theo thoi gianTRAU Transcoder Rate Adapter Unit; the transport unit for a 16kbit/s traffic channel onthe A-bis interface Don vi tuong tich toc do mo hua chuyen doi; don vu truyen tai chokenh luu luong 16kbps tren giao dien A-bisTri-band Refers to a mobile phone able to operate on the three internationallydesignated GSM frequencies- 900, 1800 and 1900MHz Xem mot dien thoai di dongco the hoat dong tren ba tan so GSM duoc chi dinh tren bonh dien quoc te -900, 1800 v1900 MHzTrueSync A technology which enables the optimal synchronisation of calendars,address books, action lists and memoranda. It enables multi-point, one-stepsynchronisation of wireless and wireline devices, desktop computers and server-basedapplications and services Mot cong nghe cho phep dong bo tot nhat cua lich, so diachi, danh sach hoat dong va ghi nho. No cho phep da diem, dong bo mot buoc cua cacthiet bi khong day va co day, may tinh de ban va sever dua tren ung dung va dich vuTRX Transmitter/receiver (transceiver) Bo Phot/thuTX Transmitter Bo photUI User Interface Giao tiep nguoi dungUL Uplink Duong len

Um The air interface between the BTS and the MS in a GSM network Giao tiepkhung kho giua BTS v MS trong mang GSMUMA Unlicensed Mobile Access Truy cap di dong khong cap phepUMTS Universal Mobile Telecommunications System; now subsumed into the IMT-2000 family as the WCDMA technology. He thong vien thong di dong toan cau; baygio no duoc gop thanh ho IMT-2000 nhu cong nghe WCDMAU-NII Unlicensed National Information Infrastructure (bandwidth for wireless LANnetworks by FCC 5.15 to 5.35 GHz and 5.75 to 5.825 GHz) Co so ha tang thongtin quoc gia khong duoc cap phep (bang thong cho mang LAN khong day boi FCC 5.15den 5.35 GHz va 5.75 den 5.825 GHz)UPN Universal Personal Number So co nhon ton cau

UPT Universal Personal Telecommunications Vien thong di dong toan cauURL Uniform Resource Locator; the addressing system of the Internet He thong diachi cua InternetUSIM Universal Subscriber Identity Module; the 3G equivalent of the GSM SIM

Module nhan dang thuo bao ton cau; SIM 3G giong voi GSMUSO Universal Service Obligation Troch nhiem dich vu ton cauUTRA Universal Terrestrial Radio Access; the air interface component of WCDMA.

Truy cap vu tuyen thuoc ton cau; thnh phan giao tiep khung kho cua WCDMA.UTRAN Universal Terrestrial Radio Access Network; the UMTS radio accessnetwork comprising the RNC, Node B and the air interface Mang truy cap vu truyenthuoc ton cau; mang truy cap vu tuyen UMTS bao gom RNC, nyt B v giao tiep khung

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khoUu The air interface between the Node B and the MS in a UMTS network. Giaotiep khung kho giua nyt B v MS trong mang UMTSUWB Ultra Wide Band Bang cuc rongVAS Value Added Services Dich vu gia tri gia tangVBR Variable Bit Rate Toc do bit thay doiVHE Virtual Home Environment Moi truong nha aoVLR Visitor Location Register Thanh ghi dinh vi tam truVo-coder Voice coder Mo hua thoaiVoIP Voice over Internet Protocol Thoai qua giao thuc InternetVPN Virtual Private Network Mang riong aoVSAT Very Small Aperture Terminal/ Dau cuoi khau do rat nhoWAN Wide Area Network Mang dien rong

WAP Wireless Application Protocol; Giao thuc ung dung khung doyWCDMA Wide Band Code Division Multiple Access Da truy cap phan chia theomo bang rongWDSL Wireless Digital Subscriber Line Duong day thue bao so khong dayWiMAX Worldwide Interoperability of Microwave Access Kha nang tuong tactoan cau cho truy cap vi baWISP Wireless Internet Service Provider Nh cung cap dich vu Internet khung doyWLANWireless Local Area Network Mang noi hat khung doyWLL Wireless Local Loop Vung lap noi hat khung doyWMN Wireless Metropolitan Area Network Mang do thi khong dayWQAM Weighted Quadrature Amplitude Modulation Dieu che bien do cau

phuong co trong luongADC Analog to Digital Conversion Bo chuyen doi tuong tu - soADSL Asymmetric Digital Suscriber Line Day thue bao so khong doi xungAM Amplitude Modulation Dieu che khoa dich bien doAMI Alternate Mark Inversion Ma dao dau luan phienAPP A Posteriory Probability Xac suat sauASK Amplitude Shift Keying Dieu che khoa dich phaATM Asynchronous Transfer ModePhuong thuc truyen dan khong dong boATSC Advanced Television Systems Committee To chuc chuan hoa truyen hinh cuaMyAWGN Additive White Gaussian Noise Nhieu tap am Gauss trang cong

BER Bit Error Ratio Ti le loi bitBnZS Bipolar with n-Zero Substitution Ma duong dayBPSK Bipolar Phase Shift Keying Khoa dich pha hai cucCAP Carrierless Aplitude Phase modulation Dieu che bien do pha khong su dungsong mangCMI Coded Mark Inversion Ma duong dayCOFDM Coded OFDM Dieu che OFDM co ma hoaCRC Cyclic Redundancy Checking Phuong phap phat hien loi du thua vongCSMA/ CA Carrier Sence Multiple Access with Collision Avoidance Da truy nhapdung song mang cam bien voi tranh xung dot

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CSMA/ CD Carrier Sence Multiple Access with Collision Detection Da truy nhapdung song mang cam bien voi phat hien xung dotDAB Digital Audio Broadcasting Phat thanh so quang baDAC Digital to Analog Conversion Bo bien doi so-tuong tuDFC Distributed Coordinate Function Chuc nang dieu phoi phan tanDMT Discrete Multi-Tone Dieu che da am roi racDSB Double Side Band Song bienDSL Digital Subscriber Line Duong day thue bao soDSLAM DSL Access Module Khoi ghep kenh truy nhap DSLDSP Digital Signal Processor Bo xu ly tin hieu soDVB Digital Video Broadcasting Truyen hinh so quang baDVB-T Digital Video Broadcasting Teresstrial Truyen hinh so quang ba matdat

EC Echo Canceller Thiet bi khu tieng vongETSI European Telecommunications Standard Institute Vien tieu chuan vien thongChau AuFDD Frequency Division Duplex Song cong phan chia theo tan soFDDI Fiber Distributed Data Interface Chuan cho mang cap quangFDM Frequency Division Modullation Ghep kenh phan chia theo tan soFEC Forward Error Checking Sua loi truocFEXT Far End Crosstalk Xuyen am dau xaFFT Fast Fourier Transform Bien doi Fourier nhanhFIR Finite Impulse Response Bo loc so co dap ung xung huu hanFSK Frequency Shift Keying Dieu che khoa dich tan

FSK Frequency Shift Keying Khoa pha theo tan soHDB3 Hight Density Bipolar-3 Ma duong dayHDSL High-bit-rate DSL Duong day thue bao so toc do bit caoHDTV High-Definition Television Truyen hinh do phan giai caoICI InterChanel Inference Nhieu lien kenhIDFT Inverse Discrete Fourier Transform Bien doi Fourier roi rac nguocIFFT Inverse Fast Fourier Transform Bien doi Fourier nhanh nguocISBN Intergrated Services Digital Broadcasting Chuan truyen hinh cua NhatISDN Intergrated Services Digital Network Mang so da dich vuISI InterSymbol Interference Nhieu giao thoa giua cac ky tuITU International Telecommunications Union To chuc vien thong quoc teLAN Local Area Network Mang cuc boLLC Logical Link Control Dieu khien lien ket logicLPF Low Pass Filter Bo loc thong thapMAC Media Access Control Dieu khien truy cap moi truongMAP Maximum a posteriori Probality Xac suat sau cuc daiMODEM Modulation/Demodulation Dieu che/giai dieu cheMPEG Motion Picture Experts Group Nhom chuyen gia hinh anh dongMUX Multiplexer Bo ghep kenhNEXT Near End Crosstalk Xuyen am dau ganNRZ Non Return Zeror Ma duong truyen NRZ

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OFDM Orthorgonal Frequency Division Multiplexing Ghep kenh phan chia theo tanso truc giaoPFC Point Coordinate Function Chuc nang dieu phoi diemPLC PowerLine Communication Thong tin duong day tai dienPOTS Plain Old Telephone Service Dich vu thoai thong thuongPRBS Pseudo Random Binary Sequence Chuoi nhi phan gia ngau nhienPSD Power Spectral Density Mat do pho cong suatPSK Phase Shift Keying Khoa dich phaPSTN Public Switch Telephone Network Mang dien thoai chuyen mach cong congQAM Quadrature Amplitude Modulation Dieu che bien do cau phuongQPSK Quadrature Phase Shift Keying Khoa dich pha cau phuongRFI Radio Frequency Interference Nhieu tan so vo tuyenRSC Recursive Symmetric Code Ma doi xung de quy

SFN Single Frequency Network Mang don tanSNR Signal to Noise Ratio Ti so tin hieu tren tap am (S/N)SOVA Soft input Soft output Viterbi Algorithm Giai thuat Viterbi memSSB Single Side Band Don bienTDD Time Division DuplexSong cong phan chia theo thoi gianTDMA Time Division Multiple Access Da truy nhap phan chia theo thoi gianVDSL Very High-speed DSLDuong day thue bao so toc do rat caoWLANWireless LAN Mang cuc bo khong dayAUC Authentication Centre/ Trung tom nhan thucBER Bit Error Ratio/Ty so bit loi.BSC Base Station Controler/Bo dieu khien tram goc.

BSS Base Station Subsystem/Phon he tram goc.BTS Base Tranceiver Station/Tram vu tuyen goc.BPSK Binary Phase Shift Keying/Khua dich pha nhi phon.BG Border Gateway/ Cong bion gioiBSSGP Base Station System GPRS Protocol/ Giao thuc GPRS tram co soCDMA Code Division Multiple Access/Da truy cap chia theo mo.C/I Carrier to Interference ratio/Ty so sung mang tron nhieu.CR Chip Rate/Toc do chip (tuong duong voi toc do trai pho cua kenh).CS Circuit Switch/Chuyen mach konh.CEPT Conference of European Postal and Telecommunications / Hoinghi cac co quan quan ly vien thung v buu chinh Chau AuCSPDN Circuit Switched Public Data Network/ Mang so lieu cungcong chuyen mach konhCN Core Network Mang luiCPC Closed-loop Power Control Dieu chinh cung suat vung konDSSS Direct Sequence Spreading Spectrum Trai pho chuoi truc tiepEDGE Enhanced Data rate for GSM Evolution./ Tang toc do truyendanEIR Equipment Identity Register/ Thanh ghi nhan dang thiet biECSD Enhanced circuit- switched dataFDD Frequency Division Duplex/Ghop konh song cung phon chia theo tan so.

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FDMA Frequence Division Multiple Access/Da truy cap phan chia theo tan soFHSS Frequency Hopping Spreading Spectrum/ Trai pho kieu nhaytanGSM Global System for Mobile Communication/Thong tin di dong toan cauGPS Global Position System/He thong dinh vi toan cau.GPRS General Packet Radio Services/Dich vu vu tuyen gui chung.GMSC Gateway MSC/ MSC congGMSK Gaussian minimum shift keying / Dieu che khoo dich pha toi thieuGGSN Gateway GPRS Support Node/ Nyt dinh tuyen GPRSGTP GPRS Tunneling Protocol/ Giao thuc ngamHandover Chuyen giao.HSCSD Hight Speed Circuit Switched Data/ He thong chuyen mach kenhtoc do cao.

HLR Home Location Register/ Thanh ghi dinh vi thuong tryIMT-2000 International Mobile Telecommunication/Tieu chuan thong tin di dongtoan cau.IMSI International Mobile Subscriber Identity/So nhan dang thue bao di dongquoc te.IP Internet Protocol/Giao thuc Internet.IS-95A Interim Standard 95A/Tieu chuan thong tin di dong TDMA cai tien cua My(Qualcomm)ISDN Integrated Servive Digital Network/Mang so da dich vu.IWF InterWorking Function/ Chuc nang tuong tac mangIMEI International Mobile Equipment Identity/ Nhan dang thiet bi di

dong ton cauLAC Link Access Control/Dieu khien truy nhap lien ket.LAI Location Area Indentify/Nhan dang vung vi tro.LLC Logical Link Control/Dieu khien lion ket logic.LR Location Registration/Dang ky vi tri.ME Mobile Equipment/Thiet bi di dong.MS Mobile Station/Tram di dong.MTP Message Transfer Part/Phan truyen ban tin.MSC Mobile Service Switching Center/Tong dai di dong.MT Mobile Terminal/ Dau cuoi di dongMMS Multimedia Messaging Services/ Dich vu nhan tin da phuong

tienNode B L nyt logic ket cuoi giao dien IuB voi RNC.ODMA Opportunity Driven Multiplex Access/Da truy cap theo co hoi.OM Operation and Management/Khai thac va bao duong.OPC Open-Loop Power Control/ Dieu chinh cung suat vung hoOLPC Outer-Loop Power Control / Dieu chinh cung suat vung ngoiPCCC Parallel Concatenated Convolutional Code/Mo xoan muc noi song song.PCS Personal Communication Services/Dich vu thung tin co nhon.PLMN Public Land Mobile Network/Mang di dong mat dat cong cong.PSTN Public Switched Telephone Network/Mang chuyen mach thoai cung cong.

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PSPDN Packet Switched Public Data Network/ Mang so lieu cungcong chuyen mach guiPIN Peronal Indentity Number/ So nhan dang thuo baoPS Packet Switched Chuyen mach guiPSK Phase Shift Keying/ Khoo dich phaPDP Packet Data Protocol/ Giao thuc so lieu guiPCU Packet Control Unit/ Khoi kiem soot guiPDU Protocol Data Unit/ Don vi du lieu giao thuc mangQPSK Quarternary Phase Shift Keying/Khua dich pha vuung guc.RNC Radio Network Controller/ Bo dieu khien mang vu tuyenSS Switched System / He thong chuyen machSIM Subscriber Identity Modulle/ Module nhan dang thuo baoSNDCP SubNetwork Dependent Convergence Protocol/ Giao thuc hoi

tu phu thuoc mang conSGSN Services GPRS Support Node/ Nyt phuc vu thuo baoTDMA Time Division Multiple Access/Da truy cap phan chia theo thoi gianTDD Time Division Duplex / Ghop song cung phon chia thoi gian.TRAU Transcoder and rate adapter unit Khoi chuyen doi mo v thochung toc do caoTE Terminal Equipment Thiet bi dau cuoiTHSS Time Hopping Spreading Spectrum Trai pho nhay thoi gianUTRAN Universal Terrestrial Radio Access Network / Mang truy nhap vo tuyenmat dat toan cau.UMTS Universal Mobile Telecommunnication System He thong thung tin di dong

ton cauUE User EquipmentVLR Visistor Location Registor Thanh ghi dinh vi tam tryVTS Video Streaming Truyen anh dongWCDMA Wideband Code Division Multiplex Access/Da truy cap phan chia theo mobang rong.WAP Wireless Application Protocol/Giao thuc ung dung vu tuyen3GPP Third Generation Partnership Project To chuc chuan hua mang di dong the he thu3AAS Adaptive Antenna System He thong antenna thoch ungACK Acknowledgement (In ARQ Protocols) Boo nhan (trong giao thuc ARQ)

ACLR Adjacent Channel Leakage Ratio He so ru ri konh lon canAGW Access Gateway (in LTE/SAE) Cong truy nhapAM Acknowledged Mode (RLC Configuration) Che do boo nhan (cau honh RLC)AMC Adaptive Modulation And Coding Mo hua v dieu che thoch nghiARQ Automatic Repeat-Request You cau lap lai tu dongBCCH Broadcast Control Channel Kenh dieu khien quang boBCH Broadcast Channel Konh quang boBER Bit-Error Rate Ty le loi bitBLER Block-Error Rate Ty le loi khoiBM-SC Broadcast/Multicast Service Center Trung tom dich vu

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broadcast/multicastBPSK Binary Phase-Shift Keying Khua dich pha nhi phonBS Base Station Tram gocBSC Base Station Controller Khoi dieu khien tram gocBTC Block Turbo Code Mo turbo khoiBTS Base Transceiver Station Tram thu phot gocCC Convolutional Code Mo chapCDM Code-Division Multiplexing Ghop konh phon chia theo moCDMA Code Division Multiple Access Da truy nhap phon chia theo moCN Core Network Mang luiCP Cyclic Prefix Tien to tuan honCPC Continuous Packet Connectivity Kha nang ket noi gui lion tucCPICH Common Pilot Channel Konh hoa tiou chung

CQI Channel Quality Indicator Chi thi chat luong konh truyenCRC Cyclic Redundancy Check Kiem tra tinh du tuan honCS Circuit Switched Chuyen mach konhDCCH Dedicated Control Channel Kenh dieu khien dnh riongDCH Dedicated Channel Konh dnh riongDFE Decision Feedback Equalization Con bang hoi tiep de quyet dinhDFT Discrete Fourier Transform Bien doi fourier roi racDFTS-OFDM DFT-Spread OFDM, See Also SC-FDMA OFDM trai pho DFT, cungduoc xem nhu la SC-FDMADL Downlink Duong xuongDL-SCH Downlink Shared Channel Konh chia se duong xuong

DPCCH Dedicated Physical Control Channel Kenh dieu khien vat ly dnh riongDPCH Dedicated Physical Channel Konh vat ly dnh riongDPDCH Dedicated Physical Data Channel Konh du lieu vat ly dnh riongDRX Discontinuous Reception Su thu nhan khung lion tucDTCH Dedicated Traffic Channel Kenh luu luong dnh riongDTX Discontinuous Transmission Su phot khung lion tucE-DCH Enhanced Dedicated Channel Konh dnh riong nong caoeNodeB E-UTRAN NodeB NodeB E-UTRANEPC Evolved Packet Core Lui gui cai tienETSI European Telecommunication Standards Institute Vien tiou chuan vien thungChou uFCC Federal Communications Commission Hoi dong truyen thung lion bangFDD Frequency Division Duplex Song cung phon chia theo tan soFDM Frequency Division Multiplexing Ghop konh phon chia theo tan soFDMA Frequency Division Multiple Access Da truy nhap phon chia theo tan soFFT Fast Fourier Transform Bien doi fourier nhanhGERAN GSM EDGE RAN Mang truy nhap vu tuyen GSM EDGEGPRS General Packet Radio Services Dich vu vu tuyen gui tong hopGSM Global Sytem For Mobile Communications He thong truyen thong di dong toncauHARQ Hybrid ARQ ARQ hon hop

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HSCSD High Speed Circuit Switched Data Du lieu chuyen mach konh toc docaoHLR Home Location Register Thanh ghi dinh vi thuong tryHS-DSCH High-Speed Downlink Shared Channel Konh chia se duong xuongtoc do caoHSDPA High Speed Downlink Packet Access Truy nhap goi duong xuong toc docaoHSPA High Speed Packet Access Truy nhap gui toc do caoHSUPA High Speed Uplink Packet Access Truy nhap goi duong lon toc do caoIEEE Institute Of Electrical And Electronics Engineers Vien ky su dien va dien tuIFFT Inverse FFT FFT dao nguocIMS IP Multimedia Subsystem He thong con da truyen thung IPIMT-2000 International Mobile Telecommunications 2000 Vien thong di dong

quoc te 2000IR Incremental Redundancy Su du thua gia tangITU International Telecommunications Union Hiep hoi vien thung quoc teLTE Long Term Evolution Su phot trien di hanMAC Medium Access Control Dieu khien truy nhap moi truongMBMS Multimedia Broadcast/Multicast Service Broadcast da truyenthung/dich vu multicastMBS Multicast And Broadcast Service Dich vu multicast v broadcastMIMO Multiple Input Multiple Ouput Nhieu dau vo nhieu dau raMSC Mobile Switching Center Trung tom chuyen mach di dongNAK Negative Acknowledgement (In ARQ Protocols) Boo nhan that bai (trong giao

thuc ARQ)NodeB NodeB, a logical node handling transmission/reception in multiple cells.Commonly, but not necessarily, corresponding to a base station Mot node logic dieukhien viec phot v thu trong nhieu te bo. Cu khi cun xem nhu tuong ung voi mot tramgoc.OFDM Orthogonal Frequency Division Multiplexing Ghop konh phon chia theotan so truc giaoOFDMA Orthogonal Frequency Division Multiple Access Da truy nhap phonchia theo tan so truc giaoPAPR Peak to Average Power Ratio He so cung suat dinh tron trung bonhPAR Peak to Average Ratio He so dinh tron trung bonh (giong nhu PAPR)

PCCH Paging Control Channel Kenh dieu khien tom goiPCH Paging Channel Konh tom goiPCI Pre-coding Control IndicationChi thi dieu khien tien mo huaPDCCH Physical Downlink Control Channel Kenh dieu khien duong xuong vat lyPDCP Packet Data Convergence Protocol Giao thuc hoi tu du lieu guiPDSCH Physical Downlink Shared Channel Konh chia se duong xuong vat lyPDU Protocol Data Unit Don vi du lieu giao thucPHY Physical layer Lop vat lyQAM Quadrature Amplitude Modulation Dieu che bien do cau phuongQoS Quality of Service Chat luong dich vu

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QPSK Quadrature Phase Shift Keying Khua dich pha cau phuongRAN Radio Access Network Mang truy nhap vu tuyenRB Resource Block Khoi ti nguyonRF Radio Frequency Tan so vu tuyenRLC Radio Link Protocol Giao thuc lion ket vu tuyenRNC Radio Network Controller Khoi dieu khien mang vu tuyenROHC Robust Header Compression Nen tieu de manh meRRC Radio Resource Control Dieu khien ti nguyon vu tuyenRS Reference Symbol Ky hieu tham khaoRSN Retransmission Sequence Number So thu tu truyen laiSC-FDMA Single Carrier FDMA FDMA don song mangSDMA Spatial Division Multiple Access Da truy nhap phon chia theo khung gianSFBC Space Frequency Block Coding Mo hua khoi khung gian-tan so

SIR Signal To Interference Ratio He so ton hieu tron nhieuSNR Signal To Noise Ratio He so ton hieu tron tap omTD-CDMA Time Dvision-Code Division Multiple Access Da truy nhap phonchia theo mo v thoi gianTDD Time Division DuplexSong cung phon chia thoi gianTDM Time Division Multiplexing Ghop konh phon chia theo thoi gianTDMA Time Division Multiple Access Da truy nhap phon chia theo thoi gianTD-SCDMA Time Division-Synchronous Code Division Multiple Access Datruy nhap phon chia theo mo dong bo, phon chia theo thoi gianTF Transport Format Dinh dang truyen taiTFC Transport Format Combination Su ket hop dinh dang truyen tai

TM Transparent Mode (RLC Configuration) Che do trong suot (cau honh RLC)TTI Transmission Time Interval Khoang thoi gian truyen danUE User Equipment, the 3GPP name for the mobile terminal Thiet bi nguoi dung,ten 3GPP dat cho thiet bi dau cuoi di dongUL Uplink Duong lonUL-SCH Uplink Shared Channel Konh chia se duong lonUM Unacknowledgement Mode (RLC Configuration) Che do khung boo nhan (cauhonh RLC)UMTS Universal Mobile Telecommunications System He thong vien thong di dongton cauUTRA Universal Terrestrial Radio Access Truy nhap vu tuyen mat dat ton cau

UTRAN Universal Terrestrial Radio Access Network Mang truy nhap vu tuyen matdat ton cauWCDMA Wideband Code Division Multiple Access Da truy nhap bang rong phonchia theo moVoIP Voice Over IP Thoai qua IPZC Zadoff-Chu Chuoi Zadoff-Chu3R Regenerated, Retimed, Reshaped Tai tao, dinh thoi, chinh sua.ALSO Automatic Line ShutOff Ngat duong day tu dong.AM Analog Maintenance Bao duong tuong tu.AMP Amplifier Khuech dai.

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ARP Automatic Power Reduction Giam cong suat tu dong.ASE Amplifier Spontaneous Emission Khuech dai tu phat.CPG Circuit Pack Group Card nhum.DAC Dual Amplifier Circuit Mach khuech dai Dual (kep).DRA Distributed Raman Amplifier Khuech dai phan bo Raman.DWDM Dense Wavelength Division Multiplexing Ghep konh theo buoc songmat do cao.DX Digital Cross Connect Ket noi choo so.EDFA Erbium Doped Fiber Amplifier Soi khuech dai Erbium.EOL End Of Life Ket thuc su song (tuoi tho cua thiet bi).ILF Interleave Filter Bo loc xen.INTLVInterleave Xen.LA Line Amplifier Bo khuech dai duong day.

LH-1600G Long Haul-1600G Thiet bi khuech dai duong di 1600G.MSA Mid-Stage Access Diem truy nhap tang giua.NDSF Non Dispersion Shifted Fiber Soi quang khung dich ton sac.OADM Optical Add/Drop Multiplexing Bo ghop xen/rot quang.ODEMUX Optical DeMultiplexing Bo toch quang.OLA Optical Line Amplifier Khuech dai duong day quang.OLT Optical Line Terminal Dau cuoi duong day quang.OMUX Optical Multiplexing Bo ghop quang.OSA Optical Spectrum Analyser Bo phon toch pho quang.OSC Optical Service Channel Konh dich vu quang.OSNR Optical Signal to Noise Ratio Ti so ton hieu tron nhieu.

OTR Optical Transport Repeater Bo lap quang.OTU Optical Transmission Section Doan truyen dan quang.PBE Push Button Equalization Chuc nang can bang.PO Power Optimizer Bo toi uu hoa cong suat.SNCP Sub-Network Connection Protecting Bao ve ket noi mang con.WT Walength Translation Chuyen doi buoc song.A First Generation The he thu nhat2G Second Generation The he thu hai3G Third Generation The he thu ba3GPP Third-Generation Partnership Project De on xoy dung he thong thung tin di dongthe he thu ba3GPP2 Third-Generation Partnership Project 2 De on 2 xoy dung he thong thong tindi dong the he thu baAAA Authentication, Authorization, Accounting Xoc thuc, cap phep va tinh cuocAAAF AAA Foreign AAA ngoai laiAAAH AAA Home AAA thuong tryAAAL AAA Local AAA cuc boAAL ATM Adaptation Layer Lop thoch ung ATMAMPS Advanced Mobile Phone Systems He thong dien thoai di dong tien ochAPI Application Programming Interface Giao dien chuong tronh ung dungAPN Access Point Name Ton diem truy nhap

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ATM Asynchronous Tranfer Mode Phuong thuc truyen khong dong boAuC Authentication Center Trung tom nhan thucBGCF Breakout Gateway Control Function Chuc nang dieu khien cong ngatBICC Bear Independent Call Control Protocol Giao thuc dieu khien cuoc goi doclap vat mangBRAN Broadband Radio Access Network Mang truy nhap vu tuyen bang rongBS Base Station/Tram goc \n Bearer Service /Dich vu tai tinBSC Base Station Controller Bo dieu khien tram gocBSS Base Station Subsystem Phon he tram gocBTS Base Transceiver Station-Tram thu phot goc \n Base Transceiver System Hethong thu phot gocCAMEL Customized Applications for Mobile Enhanced LogicCAP CAMEL Application Part Phan ung dung CAMEL

CDMA Code Division Multiple Access Da truy nhap phon chia theo moCDR Call Detail Record Bao cao so luoc cuoc goiCM Connection Management Quan ly ket noiCN Core Network Mang luiCRC Cyclic Redundance Check Kiem tra vung duCS Circuit Switched Chuyen mach konhCSCF Call State Control Function/Chuc nang dieu khien trang thoi cuoc goi \nCallSession Control Function /Chuc nang dieu khien phion cuoc goiCSE CAMEL Service Environment Moi truong dich vu CAMELCS-MGW Circuit Switched Media Gateway Cong phuong tien chuyen machkonh

DB Database Cau tryc du lieu co banDHCP Dynamic Host Configuration Protocol Giao thuc thiet lap host tu dongDNS Domain Name System He thong ton vungDS-CDMA Direct Sequence Code Division Multiple Access Da truy nhap phonchia theo mo chuoi truc tiepDSSS Direct Sequence Spread Spectrum Ky thuat trai pho chuoi truc tiepEDGE Enhanced Data Rates for Global GSM Evolution Toc do so lieu tang cuongphot trien GSMEIR Equipment Identity Register Thanh ghi nhan dang thiet biESA Enhanced Subscriber Authentication Nhan thuc thue bao tang cuongETSI European Telecommunication Standards Institute Vien tiou chuan vien thung

Chou uFA Foreign Agent Toc tu ngoai laiFDD Frequency Division Duplex Ghop song cung phon chia theo tan soFDMA Frequency Division Multiple Access Da truy nhap phon chia theo tan soGERAN GSM EDGE Radio Access Network Mang truy nhap vu tuyen GSMEDGEGFA Gateway Foreign Agent Toc tu ngoai lai congGGSN Gateway GPRS Support Node Nyt ho tro GPRS congGMSC Gateway Mobile Switching Centre Trung tom chuyen mach di dong congGPRS General Packet Radio Service Dich vu vu tuyen gui chung

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GRE General Routing Encapsulation Su bao boc dinh tuyen chungGSCF GPRS Service Control Function \n Chuc nang dieu khien dich vu GPRSGSM Global System for Mobile Communication He thong thong tin di dong ton cauGSN GPRS Support Node Nyt ho tro GPRSGTP GPRS Tunneling Protocol Giao thuc duong ham GPRSHA Home Agent Toc tu thuong tryHAAA Home AAA AAA thuong tryHDB Home Database Cau tryc du lieu thuong tryHDR High Data Rate Toc do du lieu caoHLR Home Location Register Thanh ghi dinh vi thuong tryHSS Home Subscriber Server Bo phuc vu thue bao thuong tryHSCSD High Speed Circuit Switched Data So lieu chuyen mach konh toc do caoII-CSCF Interrogating Call State Control Function Chuc nang dieu khien trang

thoi cuoc goi tham vanIETF Internet Engineering Steering Group Nhom dac troch ky thuat InternetIM Instant Message Ban tin tuc thoiIMEI International Mobile Station Equipment Identity Bo nhan dang thiet bi tram didong quoc teIM-MGW IP Multimedia Media Gateway Cong da phuong tien IPIMT-2000 International Mobile Telecommunication - 2000 Tiou chuan thong tindi dong ton cau 2000IMS IP Multimedia Subsystem Phon he da phuong tien IPIMSI International Mobile Subscriber Identity Nhan dang thue bao di dong quoc teIM-SSF IP Multimedia Service Switching Function Chuc nang chuyen mach dich

vu da phuong tien IPIN Intelligent Network Mang thung minhIP Internet Protocol Giao thuc InternetIPOA IP Over ATM IP tron ATMIPOS IP Over SONET IP tron SONETIPv4 Internet Protocol version 4 Giao thuc Internet phion ban 4IPv6 Internet Protocol version 6 Giao thuc Internet phion ban 6IS-54 Interim Standard-54 Tieu chuan thong tin di dong TDMA cua My (do AT &Tde xuat)IS-136 Interim Standard-136 Tieu chuan thong tin di dong TDMA cai tien cua My (doAT&T de xuat)

IS-95A Interim Standard-95A Tieu chuan thong tin di dong CDMA cua My (do Qualcomde xuat)ISC IMS Service Control/ Dieu khien dich vu IMSISDN Integrated Services Digital Network Mang toch hop dich vu soISP Internet Service Provider Nh cung cap dich vu InternetISUP ISDN User Part Phan doi tuong su dung ISDNITU International Telecommunication Union Lien doan vien thung quoc teITU-T ITU Telecommunication Standardization Sector Vung chuan vien thung ITUIWF Interworking Function Chuc nang ket noi mangLA Location Area Vung dinh vi

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LAC L2TP Access Concentrator/Bo tap trung truy nhap /L2TPLink AccessControl/Location Area Code /Dieu khion truy nhap duong truyen/Mo vung dinh viLAI Location Area Identifier Bo nhan dang vung dinh viLAN Local Area Network Mang cuc boLSP Label Switched Parth Tuyen duong su dung phuong thuc chuyen mach nhonLSR Label Switching Router Thiet bi dinh tuyen chuyen mach nhonMAC Media Access Control/Dieu khien truy nhap muc phuong tien truyenthung/Message Authentication Code /Mo nhan thuc tin nhanMAP Mobile Application Part Phan ung dung di dongMCC Mobile Country Code Mo quoc gia cua di dongMC-CDMA Multi-Carrier Code Division Multiple Access Da truy nhap phonchia theo mo da song mangME Mobile Equipment Thiet bi di dong

MG Media Gateway Cong phuong tienMGC Media Gateway Controller Bo dieu khien cong phuong tienMGCF Media Gateway Control Function Chuc nang dieu khien cong phuong tienMIP Mobile IP IP cua di dongMMD Multimedia Domain Vung da phuong tienMMS Multimedia Messaging Service Dich vu nhan tin da phuong tienMN Mobile Node Nut di dongMNC Mobile Network CodeMo mang cua di dongMRC Multimedia Resource Controller Bo dieu khien nguon tai nguyen da phuongtienMRF Multimedia Resource Function Chuc nang du tru tai nguyen da phuong tien

MPLS Multiprotocol Label Switching Chuyen mach nhon da giao thucMPOA Multiprotocol over ATM Da giao thuc qua ATMMRFC Multimedia Resource Function Controller Bo dieu khien chuc nang du tru tainguyen da phuong tienMRFP Multimedia Resource Function Processor Bo xu ly chuc nang du tru tai nguyenda phuong tienMS Mobile Station Tram di dongMSC Mobile-services Switching Center Trung tam chuyen mach dich vu didong\nMobile Switching Center -Trung tam chuyen mach di dongMSF MultiService Switching Forum Dien dan chuyen mach da dich vuMSIN Mobile Subscriber Identification Number So nhan dang thue bao di dong

MSIDN Mobile Subscriber ISDN Number So ISDN cua thue bao di dongMSS MultiService Switching Systems He thong chuyen mach da dich vuMT Mobile Termination/Ket cuoi o MS \nMobile Terminal -Dau cuoi di dongNAI Network Access Identifier Bo nhan dang truy nhap mangNAS Network Access Server Bo phuc vu truy nhap mangNAT Network Address Translator Bo chuyen (dich) dia chi mangNGN Next Generation Network Mang the he sauN-ISDN Narrowband-ISDN Mang ISDN bang hepNID Network ID ID cua mangNMSI National Mobile Subscriber Identity Nhan dang thue bao di dong quoc gia

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NMT Nordic Mobile TelephoneNode B Node B Nyt BNSAPI Network-Layer Service Access Point Identifier Bo nhan dang diem truy nhapdich vu lop mangOOAM&P Operation, Administration, Maintenance, and ProvisioningOSA Open Service Access Truy nhap dich vu moPCF Packet Control Function Chuc nang dieu khien gui \n Policy Control Function

Chuc nang dieu khien chinh sachPCH Paging Channel Kenh tim goiPCU Packet Control Unit Don vi dieu khien guiP-CSCF Proxy Call State Control Function Chuc nang dieu khien trang thoi cuocgoi du truPDF Policy Decision Function

PDP Packet Data Protocol \n Policy Decision PointPDS Packet Data Subsystem Phon he du lieu guiPDSN Packet Data Serving Node Nyt dich vu du lieu guiPDU Packet Data Unit Don vi du lieu guiPLMN Public Land Mobile Network Mang di dong mat dat cung congP-MIP Paging in Mobile IP Tom goi trong Mobile IPPMM Packet Mobility Management Quan ly di dong guiPOST Plain Old Telephone Service Dich vu thoai truyen thongPPP Point-to-Point Protocol Giao thuc diem-diemPS Packet Switched Chuyen mach guiPSTN Public Switched Telephone Network Mang chuyen mach thoai cung cong

P-TMSI Packet TMSI TMSI guiQoS Quality of Service Chat luong dich vuQPSK Quadrature Phase Shift Keying Khoo chuyen pha vuung gucQAMRAB Radio Access Bearer Dich vu mang truy nhap vu tuyenRAN Radio Access Network Mang truy nhap vu tuyenRANAP Radio Access Network Application Part Phan ung dung mang truynhap vu tuyenRAB ID RAB Identifier Bo nhan dang RABRB Radio BearerRLC Radio Link Control Dieu khien ket noi vu tuyen

RIP Realtime Internet Protocol Giao thuc boo hieu IP cho coc ung dung thoi gianthucRN Radio Network Mang vu tuyenRNC Radio Network Controller Bo dieu khien mang vu tuyenRNS Radio Network Subsystem Phon he mang vu tuyenRRC Radio Resource Control Dieu khien ti nguyon vu tuyenRTP Realtime Transport Protocol Giao thuc truyen tai thoi gian thucRTT Radio Transmission Technology Ky thuat truyen dan vu tuyenSAP Service Access Point Diem truy nhap dich vuSCCP Signalling Connection Control Part Phan dieu khien ket noi boo hieu

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SCP Service Control Point Diem dieu khien dich vuSCS Service Capability Server Bo phuc vu dung luong dich vuS-CSCF Serving Call State Control Function Chuc nang dieu khien trang thoi cuocgoi dang phuc vuSDH Synchronous Digital Hierarchy He thong phon cap so dong boSDU Selection and Distribution Unit - Don vi phon phoi v lua chon \n Service DataUnit /Don vi du lieu dich vuSG Signalling Gateway Cong boo hieuSGSN Serving GPRS Support Node Nyt ho tro GPRS dang phuc vuSIM Subscriber Identity Module Cau tryc nhan dang thuo baoSIP Session Initiation Protocol Giao thuc khoi dong phionSMS Short Message Service Dich vu ban tin nganSN Service Node-Nyt dich vu \n Serving Network - Mang dang phuc vu

SONET Synchronous Optical Network Mang truyen dan quang dong boSRNS Serving Radio Network Subsystem Phon he mang vu tuyen phuc vuSS7 Signalling System No.7 Mang boo hieu so 7TA Terminal Adapter Bo thoch ung dau cuoiTACS Total Access Communication Services Dich vu vien thung truy nhap tongTCP Transmission Control Protocol Giao thuc dieu khien truyen danTDD Time Division DuplexGhop song cung phon chia theo thoi gianTDMA Time Division Multiple Access Da truy nhap phon chia theo thoi gianTE Terminal Equipment Thiet bi dau cuoiTEID Tunnel Endpoint Identifier Bo nhan dang diem ket thuc duong hamTMSI Temporary Mobile Subscriber Identity Bo nhan dang thue bao di dong tam

thoiTTL Time to Live Thoi gian ton taiUA User AgentUAC User Agent ClientUDP User DatagramProtocol Giao thuc du lieu nguoi dungUE User Equipment Thiet bi nguoi dungUIM User Identity Module Cau truc nhan dang nguoi dungUMTS Universal Mobile Telecommunication System He thong vien thong di dongton cau 3GURA UTRAN Registration Area Vung dang ky UTRANUSIM UMTS Subscriber Identity Module - Cau truc nhan dang thuo bao UMTS \n

Universal Subscriber Identity Module - Cau truc nhan dang thuo bao ton cauUTRAN UMTS Terrestrial Radio Access Network-Mang truy nhap vu tuyen matdat UMTS \n Universal Terrestrial Radio Access Network - Mang truy nhap vu tuyenmat dat ton cauVAAA Visited AAA AAA tam tryVAS Value-Added Service Dich vu gio tri gia tangVLR Visitor Location Register Thanh ghi dinh vi tam tryVMS Voice Message System He thong ban tin thoaiVoIP Voice over IP Thoai trong IPVPN Virtual Private Network Mang riong ao

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WCDMA Wideband Code Division Multiple Access Da truy nhap phon chia theomo bang rongWLAN Wireless Local Area Network Mang cuc bo khung doyWWW World Wide WebWDM Wavelength Division Ghep kenh buoc song