PDA & Smartphone Cell Phones

LTE (Long) Term Evolution is the next big step in mobile communications, and will be in the 3rd Generation Partnership Project (3GPP introduced) Version 8. Were initiated in 2004 LTE targets for average users have 3.4 times the performance of HSDPA Release 6 levels in the downlink (100 Mbps) and 2-3 times the levels in uplink HSUPA (50 Mbps). The goals for LTE include improving spectral efficiency, reduce costs, improve services, the use of new spectrum opportunities, and reformulated the range, and better integration with other standards. E-UTRA/OFDMA, IP and IMSLTE using the Evolved UMTS Terrestrial Radio Access (E-UTRA) air interface based on OFDMA and is more than that of TDMA used in GSM and CDMA technology used in GSM / UMTS and CDMA2000. In addition, instead of packet structures owned LTE is fully IP packets and travels Voice over IP (VoIP). IP is part of the package evolved LTE system (EPS), which has been called, "System Architecture Evolution (SAE). IP Multimedia Subsystem (IMS), an integrated framework for all telecommunications to provide IP-based integrated including LTE. LTE AdvantagesThe main advantages are high performance, low latency, plug and play, FDD (Frequency Division Duplex) and TDD (Time Division Duplex) on the same platform, improving the user experience and simple architecture, and thus reduce operating costs (OPEX). LTE is also a seamless connection with existing networks, including GSM, CDMA and WCDMA. LTE also appears in a number of different frequency bands in the world, including the 2nd 6-GHz, which is perfect as a band of capacity, because operators are able to guarantee a maximum of 2 × 20 MHz of spectrum. LTE seems to be reformulated in GSM bands 900 MHz and 1800 MHz and provides excellent coverage and global roaming market in the rest of the 3GPP. Technology Demos • In September 2006 showed Siemens Networks, in collaboration with Research NOMOR the first direct emulation of an LTE network to the media and investors. • In February 2007, has selected Ericsson for the first time in the world LTE at bit rates up to 144 Mbit / s. • In September 2007 proved, NTT DoCoMo of LTE data rates of 200 Mbit / s with power consumption under 100mW during testing. • In December 2007, Nokia Siemens Networks announced that a study of long-term evolution (LTE) wireless data network, reaching speeds) of data from up to 173 megabits per second (Mbps • In April 2008, presented Ericsson M700 mobile platform, the first commercially available LTE platform capabilities, with data rates up to 100 Mbps in the downlink and up to 50 Mbps in the uplink. The platform can be used to produce data devices such as laptop modems, cards ExpressCard and USB modems for notebooks and other small form modems suitable for consumer electronic devices. commercial release in 2009, it is expected that the products of the 2010 platform. adoptionVarious carrier's carrier supports GSM or HSUPA as Rogers Wireless, AT & T, TeliaSonera, T-Mobile, Vodafone, France Telecom and Telecom Italia Mobile announced or spoken publicly about his commitment to LTE, and we can assume that to improve their networks to LTE at some point in the near future. Verizon Wireless is currently testing its LTE network and selects Ericsson and Alcatel-Lucent as a supplier of core network LTE network. It also provides a co-owner Vodafone field trials of LTE in this behavior year. MetroPCS, Telus Mobility, China Telecom / Unicom and KDDI of Japan have announced that they have chosen LTE as the 4G network technology. This year, Huawei signed contracts with TeliaSonera for the world's first commercial building LTE network . After the acquisition, Huawei's end-to-end solution that includes LTE LTE base stations and core network), OSS (Operations Support System. It also offers services such as network design, implementation, integration and support systems. TeliaSonera also holds hands with Ericsson commercial LTE network.

Tags: Communication, Next, Step, wireless