We are independent & ad-supported. We may earn a commission for purchases made through our links.
Advertiser Disclosure
Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.
How We Make Money
We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently of our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.
Networking

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

What is HSUPA?

By K. Schurman
Updated: May 17, 2024

The High-Speed Uplink Packet Access (HSUPA) protocol works with the 3G mobile telephone network, providing a maximum uplink speed of 5.76 megabits per second (Mbps). HSUPA is a part of the High-Speed Packet Access (HSPA) software family of protocols, maintained and defined by the 3rd Generation Partnership Project (3GPP). The 3GPP group, made up of numerous telecommunications associations, is involved in creating specifications for the 3G mobile phone system. Among its services, 3G allows simultaneous transfer of both voice data and non-voice data. To make use of HSPA protocols, you must have a mobile device that is HSPA-enabled.

HSUPA improves the performance of the enhanced dedicated channel (E-DCH) by increasing throughput and reducing delays. In other words, it increases the speed at which your mobile device can communicate with the network. The HSUPA is designed to quickly match the signal and protocol parameters required for wireless communications, also known as link adaptation. The new protocol also improves performance by reducing latency.

The latest version of HSUPA, with its uplink speed of 5.76 Mbps, can provide many more potential uses of Internet applications for 3G mobile devices. With better speeds, users might be more inclined to upload videos, for example. In terms of how the HSUPA protocol performs its work, it is similar to the High-Speed Downlink Packet Access (HSDPA) protocol. HSDPA essentially gives mobile devices the ability to receive large files, including e-mail attachments and web pages.

HSUPA makes use of a few new features, as well. Fast Hybrid Automatic Repeat reQuest (ARQ) is one of them. This allows the base station in the mobile network to make an immediate request to retransmit data, should it contain errors. By making retransmission requests more efficient, the overall data transmission can occur more quickly.

Multi-Code Transmission is a new feature as well. It allows for simultaneous use of as many as four codes by one user, rather than using one code per user. With multiple codes available at the same time, the user will see an increase in the uplink data rate.

Short Transmission Time Interval, which makes use of an uplink interval of either 2 milliseconds (ms) or 10 ms, is yet another new feature made available by HSUPA. The previous uplink interval ranged from 10 ms to 40 ms. With a shorter interval, overall transmission times are shorter.

Nokia actually created the name HSUPA but the 3GPP uses the term Enhanced Uplink (EUL) to refer to HSUPA.

WiseGeek is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Discussion Comments
By livlife40 — On Jun 15, 2011

I just got a new smartphone, and have been able to download and view videos for the first time on a mobile. I hope that the HSUPA and network near where I work is upgraded in the near future though, because downloads get pretty slow and choppy in that area.

Share
WiseGeek, in your inbox

Our latest articles, guides, and more, delivered daily.

WiseGeek, in your inbox

Our latest articles, guides, and more, delivered daily.