uplink frequency

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• 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

• 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

• 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

• High-Speed Uplink Packet Access — (HSUPA) is a 3G mobile telephony protocol in the HSPA family with up link speeds up to 5.76 Mbit/s. The name HSUPA was created by Nokia. The 3GPP does not support the name HSUPA , but instead uses the name Enhanced Uplink (EUL). [… …   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

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

• 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

• OSCAR — This article is about the satellite. For other uses, see Oscar (disambiguation). OSCAR 1 OSCAR is an acronym for Orbiting Satellite Carrying Amateur Radio. OSCAR series satellites use amateur radio frequencies to facilitate communication between… …   Wikipedia

• telecommunications media — Introduction       equipment and systems metal wire, terrestrial and satellite radio, and optical fibre employed in the transmission of electromagnetic signals. Transmission media and the problem of signal degradation       Every… …   Universalium

• Satellite Internet access — Satellite Internet services are used in locations where terrestrial Internet access is not available and in locations which move frequently. Internet access via satellite is available worldwide, including vessels at sea and mobile land… …   Wikipedia