downlink frequency

См. также в других словарях:

• Downlink CNR — (Carrier to noise ratio in satellite reception) is an important figure in system TVRO design. Below are certain parameters used in CNR computation. Contents 1 Figure of merit 2 Path loss 3 EIRP 4 Baseband …   Wikipedia

• Frequency-division multiple access — or FDMA is an channel access method that is used by radio systems to share a certain radio spectrum between multiple users. The users are individually allocated one or several frequency bands, allowing them to access the radio system without… …   Wikipedia

• Downlink — Der Downlink [daʊnlɪŋk] bezeichnet in einem Kommunikationssystem diejenige Verbindung (engl. link) mit der Datenflußrichtung, welche aus der Sicht eines Endgerätes aus Richtung des Telekommunikationsnetzes kommt. Der Downlink dient dem Download… …   Deutsch Wikipedia

• GSM frequency bands — or frequency ranges are the cellular frequencies designated by the ITU for the operation of GSM mobile phones. Contents 1 GSM frequency bands 1.1 GSM 900, GSM 1800 and EGSM/EGSM 900 1.1.1 GSM 1800 …   Wikipedia

• High-Speed Downlink Packet Access — (HSDPA) is an enhanced 3G (third generation) mobile telephony communications protocol in the High Speed Packet Access (HSPA) family, also dubbed 3.5G, 3G+ or turbo 3G, which allows networks based on Universal Mobile Telecommunications System… …   Wikipedia

• Orthogonal frequency-division multiplexing — Passband modulation v · d · e Analog modulation AM · …   Wikipedia

• UTRA Absolute Radio Frequency Channel Number — Die UTRA Absolute Radio Frequency Channel Number, kurz UARFCN, ist eine ganze Zahl, die aus der Sendefrequenz eines UMTS Trägers berechnet wird. UTRA ist die Abkürzung für UMTS Terrestrial Radio Access.[1] Der wesentliche Unterschied zur ARFCN in …   Deutsch Wikipedia

• UMTS Absolute Radio Frequency Channel Number — Die UMTS Absolute Radio Frequency Channel Number, kurz UARFCN, ist eine ganze Zahl, die aus der Sendefrequenz eines UMTS Trägers berechnet wird. Die UARFCN berechnet sich zu: mit mit …   Deutsch Wikipedia

• Dynamic single-frequency networks — (DSFN) is a transmitter macrodiversity technique for OFDM based cellular networks. DSFN is based on the idea of single frequency networks (SFN), which is a group of radio transmitters that send the same signal simultaneously over the same… …   Wikipedia

• Multi-frequency time division multiple access — MF TDMA (Multi Frequency, Time Division Multiple Access) is the leading technology for dynamically sharing bandwidth resources in an over the air, two way communications network. Many variations of MF TDMA technology (including simple TDMA) exist …   Wikipedia

• Intermediate frequency — In communications and electronic engineering, an intermediate frequency (IF) is a frequency to which a carrier frequency is shifted as an intermediate step in transmission or reception. The intermediate frequency is created by mixing the carrier… …   Wikipedia