> Why would you need to fall back if there is more LTE coverage than 3G/CDMA coverage?
More LTE coverage than 3G doesn't mean the LTE coverage area is a superset of the 3G coverage area, as long as there is any 3G coverage area that doesn't have LTE coverage, you might benefit from fallback to avoid no coverage.
More LTE coverage than 3G doesn't mean the LTE coverage area is a superset of the 3G coverage area, as long as there is any 3G coverage area that doesn't have LTE coverage, you might benefit from fallback to avoid no coverage.