frequency-division duplexing
1Frequency-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… …
2Orthogonal frequency-division multiple access — Multiplex techniques Circuit mode (constant bandwidth) TDM · FDM · SDM Polarization multiplexing Spatial multiplexing (MIMO) …
3Time division multiple access — This article is about the channel access method. The name TDMA is also commonly used in the United States to refer to Digital AMPS, which is an obsolete mobile telephone standard that uses TDMA to control channel access. Time division multiple… …
4Code division multiple access — This article is about a channel access method. For the mobile phone technology referred to as CDMA, see IS 95 and CDMA2000. Multiplex techniques Circuit mode (constant bandwidth) TDM · FDM  …
5Multi-carrier code division multiple access — (MC CDMA) is a multiple access scheme used in OFDM based telecommunication systems, allowing the system to support multiple users at the same time. MC CDMA spreads each user symbol in the frequency domain. That is, each user symbol is carried… …
6Multi-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 …
7Duplex (telecommunications) — A duplex communication system is a system composed of two connected parties or devices that can communicate with one another in both directions. The term multiplexing is used when describing communication between more than two parties or devices …
8UMTS-TDD — is a mobile data network standard built upon the UMTS 3G cellular mobile phone standard, using a TD CDMA, TD SCDMA, or other 3GPP approved, air interface that uses Time Division Duplexing to duplex spectrum between the up link and down link.… …
9Integrated Digital Enhanced Network — IDEN redirects here. For other uses, see Iden (disambiguation). Integrated Digital Enhanced Network (iDEN) is a mobile telecommunications technology, developed by Motorola, which provides its users the benefits of a trunked radio and a cellular… …
10B-Netz — was an analog, commercial mobile radio telephone network that operated by the Deutsche Bundespost in Germany (at first only West Germany) from 1972 until 1994. The system was also implemented in neighboring countries Austria, The Netherlands and… …
