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Cingular, the predecessor to AT&T, supported legacy D-AMPS/TDMA and analog wireless networks. In March 2006, Cingular announced that these networks would be shut down by February 2008. As of March 31, 2007, Cingular ended TDMA supported for GoPhone (pre-paid) customers. On July 15, 2007, AT&T TDMA on 1900 MHz was retired, while TDMA on 850 MHz ...
EDGE is part of ITU's 3G definition. [4] Evolved EDGE continues in release 7 of the 3GPP standard providing reduced latency and more than doubled performance e.g. to complement High-Speed Packet Access . Peak bit-rates of up to 1 Mbit/s and typical bit-rates of 400 kbit/s can be expected.
Originally BellSouth Mobility DCS, then Cingular Wireless, [84] then Aio Wireless, then rebranded as the new GSM Cricket Wireless: 310: 160: T-Mobile: T-Mobile US: Not operational: GSM 1900 [84] GSM shut down Feb 2025 [144] 310: 170: AT&T: AT&T Mobility: Operational: GSM 1900: Formerly Pacific Bell Wireless, then Cingular Wireless [84] CA/NV ...
The Cingular brand was officially wiped off Cingular Wireless was purchased by AT&T, as part of AT&T's acquisition of BellSouth in 2006. 2007 Departures: 'Cingular' dropped as AT&T absorbs company
The Universal Mobile Telecommunications System (UMTS) is a 3G mobile cellular system for networks based on the GSM standard. [1] Developed and maintained by the 3GPP (3rd Generation Partnership Project), UMTS is a component of the International Telecommunication Union IMT-2000 standard set and compares with the CDMA2000 standard set for networks based on the competing cdmaOne technology.
Drive test solution must support capture of GNSS information along the drive route. Gapless full frequency recording; Support of 2G, 3G, 4G LTE and 5G NR measurements. Data testing such as HTTP, latency and FTP speed tests. Voice and SMS testing. Video streaming testing support on mobile network. Frequency scanning function for all RAN technology.
Freedom of Mobile Multimedia Access (FOMA) is the brand name of the W-CDMA-based 3G telecommunications services being offered by the Japanese telecommunications service provider NTT DoCoMo. It is an implementation of the Universal Mobile Telecommunications System (UMTS) and was the world's first 3G mobile data service to commence commercial ...
In 3G, the most prevalent technology was UMTS with CDMA-2000 in close contention. All radio access technologies have to solve the same problems: to divide the finite RF spectrum among multiple users as efficiently as possible. GSM uses TDMA and FDMA for user and cell separation. UMTS, IS-95 and CDMA-2000 use CDMA. WiMAX and LTE use OFDM.