CDG, 3GPP2 Publish UMB Specs
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WiMAX and UMB
whats the difference between WiMAX and UMB, sprint will stay with cdma, so cdma has two types of G4 technology???
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WiMAX is not in the CDMA or GSM families. It's completely different.
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so sprint wont be g4 then? or how does that works
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its just different technology
non cdma or gsm based
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Sprint is leaving the CDMA family for 4G
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No they aren’t. They will continue to use CDMA just as if Verizon will continue to use theirs. In the future, that may change to just their LTE, UMB or Wimax choices.
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I only meant for their 4G deployment, not as a whole. And when I say CDMA Family, I mean the 3GPP2 Family.
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Sprint is going to go to Wimax, which is 4G.
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There isn’t much a fundamental difference. Sprint will be going to 4G as an overlay to their current CDMA operations for their 4G choice. CDMA’s UMB isn’t really theirs and the same thing with GSM’s LTE. It uses very different transmissions. OFDM/A and MIMO. Wimax uses MIMO and OFDMA. LTE uses OFDMA/MIMO and what is known as SC-FDMA. UMB uses OFDM/A and MIMO.
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I love how Wimax, LTE and UMB are all using OFDM/A. more royalties for Qualcomm.
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