How will IMS impact HSPA?
HSDPA and HSUPA are radio capabilities that bring “broadband” access speeds to UMTS networks, so technically, HSPA is relatively decoupled from IMS. However, in competitive markets, the availability of HSPA increases the likelihood that one or more operators will offer flat-rate broadband Internet access, which in turn increases the likelihood that 3rd parties will implement Internet-based (non-IMS) services over mobile networks.
