Full Form of HSDPA:
High-Speed Downlink Packet Access
HSDPA Full Form is High-Speed Downlink Packet Access. HSDPA can be considered as an upgrade to the first 3G UMTS system, which offers much higher data download speeds. As data is mainly transferred across the downlink, compared to the uplink, it was considered a higher priority to upgrade it. HSDPA allows more users to improve and use their internet connectivity on a cellular device, which is what the majority of the users wanted.
Major HSDPA Technologies:
- Modulation –The major component of HSDPA operation is the using another modulation. Initially, WCDMA the only modulation scheme was QPSK, but with HSDPA, 16-QAM is used, which allows higher data rates.
- Faster Hybrid Automatic Repeat Requests – This has been executed to remove the requirement of a floating spreading factor.
- Improved Scheduling – Improvements have also been made in the field of scheduling. The traffic of data can be scheduled in a more effective manner by moving the intelligence into the base station.
- Additional Channels – Additional channels have been created to ensure that the data traffic is moved at a higher rate.
Benefits of HSDPA:
- HSDPA ensures that peak user data ranges of 10MBPS is
- It enhances the network packet data capacity and efficiency.
- HSDPA users notice higher data speeds as wells as reduced time in response.
- Further, the service availability is also better.
Thus, we can conclude that HSDPA is a successful technology to replace GSM. As it evolved from WCDMA, it is backward compatible with older WCDMA systems. This technology is integrated into almost all smartphones and current cellular devices.