What is the difference between 3GPP-LTE and 3GPP2-UMB standards?

Question

3GPP = Third Generation Partnership Project

LTE= Long Term Evolution

UMB = Ultra Mobile Broaband

Answer 1

LTE vs UMB provides difference between LTE and UMB standards.

Answer 2

Here is a non technical perspective.

UMB was another candidate technology for 4G mainly driven by Qualcomm. Needless to say it was an attempt to promote a technology by Qualcomm to keep most of it's patents such as "Flash OFDMA" etc to benefit from royalty in long term. But after "CDMA burn" operators were least interested to fall into a trap again. UMB could not find industry acceptance and died prematurely.

Thanks to the wide global acceptance of LTE (& LTE-A). Now we have a single coherence standard for 4G.