3.13 HSPA Performance in Practice
After the introduction of how UMTS works from a technical point of view, this section takes a look at which features are used in practice and how. Looking back at early networks, voice calls are still handled the same way now as then. The way packet data is transferred, however, has completely changed with HSPA. This section is therefore a snapshot of how the system performs in practice at the time of publication. It is likely that features, which have been standardized but not yet been deployed, such as, for example, CPC or multicarrier HSPA over different bands, will again change use cases and performance in the future.
3.13.1 Throughput in Practice
In practice, the experienced throughput depends on a variety of different factors:
With a HSDPA category 8 and HSUPA category 6 device, downlink speeds of 6 Mbit/s and uplink speeds of around 1.5 Mbit/s can be reached in practice under very good signal conditions. But even under less favorable conditions, ...