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Huawei E220 3G/GPRS Modem. USB 3G/GPRS modems have a terminal-like interface over USB with V.42bis, and RFC 1144 data formats. Some models include an external antenna connector. Modem cards for laptop PCs, or external USB modems are available, similar in shape and size to a computer mouse, or a pendrive.
There is a series of related technologies that were developed based on CGI that enhances the location precision: Cell Global Identity with Timing Advance (CGI+TA), Enhanced CGI (E-CGI), Cell ID for WCDMA, Uplink Time Difference Of Arrival (U-TDOA) and Any Time Interrogation (ATI), and the high accuracy terminal based method Assisted Global ...
PT Telekomunikasi Selular, trading as Telkomsel, is an Indonesian telecommunications company founded in 1995. Its ownership is divided between Telkom Indonesia (69.9%) and Singtel (30.1%), which serves as Telkom's consumer services arm starting 1 July 2023 by its management takeover of IndiHome . [ 1 ]
WSDMA (Wideband Space Division Multiple Access) is a high bandwidth channel access method, developed for multi-transceiver systems such as active array antennas.WSDMA is a beamforming technique suitable for overlay on the latest air-interface protocols including WCDMA and OFDM.
Indonesia: CDMA2000 1xRTT, EV-DO Rel. 0 800 Dec 2002: May 2014 [107] Spectrum re-allocated for E-GSM 900 (Band 8). au
CDMA2000 1X (IS-2000), also known as 1x and 1xRTT, is the core CDMA2000 wireless air interface standard.The designation "1x", meaning 1 times radio transmission technology, indicates the same radio frequency (RF) bandwidth as IS-95: a duplex pair of 1.25 MHz radio channels. 1xRTT almost doubles the capacity of IS-95 by adding 64 more traffic channels to the forward link, orthogonal to (in ...
The Universal Mobile Telecommunications System (UMTS) is a 3G mobile cellular system for networks based on the GSM standard. 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.
Qualcomm agreed to license its CDMA patents for variants such as WCDMA. [89] There were 240 million CDMA 3G subscribers by 2004 and 143 carriers in 67 countries by 2005. [69] Qualcomm claimed to own 38 percent of WCDMA's essential patents, whereas European GSM interests sponsored a research paper alleging Qualcomm only owned 19 percent. [64]