Difference Between HSDPA and HSUPA

HSPA or High Speed packet access refers to third-generation technology for mobile broadband. It mainly consists of two protocols that are used in tandem, known as HSDPA and HSUPA. HSDPA refers to High Speed Downlink Packet Access, and HSUPA refers to High Speed Uplink Packet Access. These two protocols have some distinct features.

HSDPA vs HSUPA

The main difference between HSDPA and HSUPA is that HSDPA or High Speed Downlink Packet Access is the protocol that helps to enhance the downlink of the data transmission, on the other hand, HSUPA or high speed uplink packet access is the protocol that helps to enhance the uplink of the data transmission from the mobile device to mobile network.

HSDPA and HSUPA

HSDPA or high speed downlink packet access refers to a mobile communication protocol that helps networks based on UMTS to have a higher speed of data transfer. HSDPA or High Speed Downlink Packet Access was one of the many initiatives designed for improving the 3G system so that it could keep pace with advancements in IoT technology and mobile.

HSUPA or high speed uplink access refers to a mobile communication protocol that helps networks based on UMTS to have higher data uplink rates. It achieves its high performance by scheduling more efficient uplink in the faster retransmission control and base station. It is also known as E-DCH or Enhanced Uplink Dedicated Channel.

Comparison Table Between HSDPA and HSUPA 

Parameters of Comparison  HSDPAHSUPA
DefinitionHSDPA refers to a mobile communication protocol that is used in UMTS radio networks for speeding up transfer rates and improving data capacity.     HSUPA refers to a mobile communication protocol that is used in UMTS radio networks for speeding up data uploads. 
AimThe main aims of HSDPA were to reduce the cost per bit of information and increase the subscriber numbers per cell and decrease the delays.       The main aim of HSUPA is to provide higher downlink speeds.
AffectHSDPA generally affects browsing and downloading.     HSUPA generally affects sending emails and uploading files.
Deployment timeMost of the time HSDPA is deployed way ahead of HSUPA.     Most of the time HSUPA is deployed later than HSDPA.
SpeedHSDPA is faster than HSUPA.     HSUPA has a lower speed compared to HSDPA.

What is HSDPA?

HSDPA or High Speed Downlink Packet Access refers to an enhanced third-generation mobile communication protocol which is also known as 3G+ AND 3.5G. HSDPA helps networks based on UMTS for achieving higher capacity and speeds of data. It was introduced with Release 5 of 3GPP.

By introducing HSDPA for UMTS networks, it doubled the capacity of the network and enhanced the speeds of download data by almost 5 times. Initially, HSDPA was deployed at 1.8 Mbps, but later it increased its speed. It specifies the transfer speed of data up to 2 Mbps per cell for uploads and 14.4 Mbps for downloads.

It delivers lower latency compared to 3G, which means low numbers of dropped data packets and the performance is less laggy. For this, HSDPA is very useful in areas like time-sensitive industrial areas. It also opened up new opportunities for delivering IoT projects by using cellular networks. 

During 2007 many telcos began selling HSDPA modems all around the world for providing the mobile broadband connection. The popularity of HSDPA has increased the sales of landline replacement boxes over the years. These boxes provide HSDPA for data via WiFi and Ethernet. The HSDPA connection 250 HSDPA networks launched mobile broadband services commercially in 109 countries in 2009. 

What is HSUPA?

HSUPA or High Speed Uplink Packet Access refers to a third-generation radio interface standard for wireless cellular data cards or handsets that improves the traffic handling and increases the data rate of existing UMTS standards. It works with the third generation mobile telephone network and provides a maximum speed of 5.76 Mbps. 

HSUPA is both a successor and a compliment to HSDPA, which provides very fast rates of data, but only for download side or downlink. HSUPA networks and devices consist of HSDPA and WCDMA technology. These are backward-compatible with networks and devices, which support only those technologies.

HSUPA is defined and maintained by the 3GPP or Third Generation Partnership Project. The 3GPP group consists of several telecommunication associations and is involved in making specifications for the third-generation mobile phone system. 3G allows simultaneous transfer of both non-voice data and voice data, among its services. For making use of HSPA protocols, your mobile device needs to be HSPA-enabled.

HSUPA improves the E-DCH’s performance by reducing delays and increasing throughput. HSUPA enhances the speed of connectivity of mobile devices with the network. It is designed to match the required protocol parameters and signal for wireless communication quickly. It also reduces the latency for improving the performance.

Main Differences Between HSDPA and HSUPA

  1. HSDPA refers to a mobile communication protocol that is used in UMTS radio networks for speeding up transfer rates and improving data capacity. On the other hand, HSUPA refers to a mobile communication protocol that is used in UMTS radio networks for speeding up data uploads.
  2. The main aims of HSDPA were to reduce the cost per bit of information and increase the subscriber numbers per cell and decrease the delays. The main aim of HSUPA is to provide higher downlink speeds.
  3. HSDPA generally affects browsing and downloading. HSUPA generally affects sending emails and uploading files.
  4. Most of the time HSDPA is deployed way ahead of HSUPA, on the contrary, most of the time HSUPA is deployed later than HSDPA.
  5. HSDPA is faster than HSUPA and HSUPA has a lower speed compared to HSDPA.

Conclusion

Both HSDPA or High Speed Downlink Packet Access and HSUPA or High Speed Uplink Packet Access are part of HSPA or High Speed Packet Access. HSDPA is the protocol that provides data or information to the user, on the other hand, HSUPA is the protocol that provides data or information up from the user.

The main difference between HSDPA and HSUPA is that the first one helps to increase the downlink of the data transmission and the latter helps to increase the uplink of the data transmission from the mobile device to the mobile network. Both these protocols are 3GPP releases that are targeted to increase the downlink and uplink in mobile networks.

References

  1. https://scholar.google.com/scholar?hl=en&as_sdt=0%2C5&q=what+is+HSDPA&btnG=#d=gs_qabs&u=%23p%3DY59PWxhr5RcJ
  2. https://scholar.google.com/scholar?hl=en&as_sdt=0%2C5&q=what+is+HSuPA&btnG=#d=gs_qabs&u=%23p%3Dqk34kQOvPt0J
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