EV-DO Rev. B is transforming the user experience of millions of EV-DO subscribers by bringing Multicarrier (carrier aggregation) and other techniques, many of which are a cost-effective network upgrade from Rev. A.
Since the world’s first commercial launch in 2010, many operators across the world have embraced EV-DO Rev. B. Rev. B. transforms the user experience of millions of EV-DO subscribers. It is a cost-effective upgrade from Rev. A and occurs in two phases — Phase 1: Multicarrier, and Phase 2: Hardware.
The step up to Rev. B begins with a software upgrade technique called multicarrier, which aggregates up to three Rev. A channels, or carriers. By employing more channels for data, Rev. B enables higher data rates, lower latency, greater capacity and an enhanced mobile broadband experience.
Using multicarrier, Rev. B triples existing data rates for all users in the cell including those at the cell edge. It also doubles the capacity for bursty applications such as web browsing.
The second phase of a Rev. B upgrade raises downlink peak rates to an amazingly fast 14.7 Mbps by employing the commercially available CSM6850 cell station modem. This highly optimized modem supports four carriers on a single card, lowering deployment cost for operators. Phase 2 also introduces BTS interference cancellation, which increases uplink capacity by ~65%.
Qualcomm Technologies' wide range of chipsets has helped populate and accelerate the Rev. B device market with everything from USB dongles/ modems to featured phones and smartphones.
Mar 21, 2010