Ultra Mobile Broadband (UMB)
Definition - What does Ultra Mobile Broadband (UMB) mean?
UMB was part of the 3rd Generation Partnership Project 2 (3GPP2), the standard body for CDMA2000.
Techopedia explains Ultra Mobile Broadband (UMB)
In 2008, UMB was canceled because its sponsors favored Long Term Evolution (LTE), a 3GPP project. LTE is the successor to the Global System for Mobile Communications (GSM) network technologies. 3GPP added hand-off support of other technologies to LTE, including CDMA2000 1x and 1xEV-DO. CDMA2000 1x and 1xEV-DO are CDMA technology standards with UMB hand-off support.
These developments have made UMB a redundant technology, while LTE has been established as the universal upgrade path for all wireless networks.