Unconfigured Ad Widget

Collapse

Announcement

Collapse
No announcement yet.

NEWS: NEW techonology generation "LTE"

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • NEWS: NEW techonology generation "LTE"

    Around the web, seem that the next generation of mobile data-voice techonology is called "LTE" and "LTE-advanced".

    Initiated in 2004, the Long Term Evolution (LTE) project focused on enhancing the Universal Terrestrial Radio Access (UTRA) and optimizing 3GPP’s radio access architecture.

    Targets were to have average user throughput of three- to four-times the Release 6 HSDPA levels in the Downlink (100Mbps), and two to three times the HSUPA levels in the Uplink (50Mbps).
    In 2007, the LTE of the 3rd generation radio access technology – "E UTRA" – progressed from the feasibility study stage to the first issue of approved Technical Specifications. By the end of 2008, these specifications will be sufficiently stable for commercial implementation.

    Orthogonal Frequency Division Multiplexing (OFDM) has been selected for the Downlink and Single Carrier-Frequency Division Multiple Access (SC-FDMA) for the Uplink. The Downlink will support data modulation schemes QPSK, 16QAM, and 64QAM and the Uplink will support BPSK, QPSK, 8PSK and 16QAM.

    LTE’s E UTRA will be extremely flexible, using a number of defined channel bandwidths between 1.25 and 20 MHz (contrasted with UTRA’s fixed 5 MHz channels).

    [IMG][/IMG]
    The 3GPP unites seven telecommunications standard development organizations to help them produce reports and specifications for that define 3GPP technologies.
Working...
X