Posted by Janicholson on December 12, 2021 at 13:22:16 from (24.240.46.228):
In Reply to: Re: OT:3G,5G.... posted by docmirror on December 12, 2021 at 12:08:37:
The following info from Wiki is accurate. There is no real (original)4G it was morphed from 3G by researchers and system designers. The Tellecom industry decided to call it 4G LTE to keep it simple. That didn't work. Long Term Evolution (LTE) is techno speak for Work in Progress. That work got stuck so long that it became a standard. Jim
Long-term evolution
In telecommunications, Long-Term Evolution (LTE) is a standard for wireless broadband communication for mobile devices and data terminals, based on the GSM/EDGE and UMTS/HSPA technologies. It increases the capacity and speed using a different radio interface together with core network improvements.[1][2] LTE is the upgrade path for carriers with both GSM/UMTS networks and CDMA2000 networks. The different LTE frequencies and bands used in different countries mean that only multi-band phones are able to use LTE in all countries where it is supported.
The standard is developed by the 3GPP (3rd Generation Partnership Project) and is specified in its Release 8 document series, with minor enhancements described in Release 9. LTE is sometimes known as 3.95G and has been marketed both as 4G LTE and as Advanced 4G,[citation needed] but it does not meet the technical criteria of a 4G wireless service, as specified in the 3GPP Release 8 and 9 document series for LTE Advanced. The requirements were originally set forth by the ITU-R organisation in the IMT Advanced specification. However, due to marketing pressures and the significant advancements that WiMAX, Evolved High Speed Packet Access, and LTE bring to the original 3G technologies, ITU later decided that LTE together with the aforementioned technologies can be called 4G technologies.[3] The LTE Advanced standard formally satisfies the ITU-R requirements to be considered IMT-Advanced.[4] To differentiate LTE Advanced and WiMAX-Advanced from current 4G technologies, ITU has defined them as True 4G.[5][6]
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