HSPA (High-Speed Packet Access) is a wireless technology that improves 3G networks to provide faster data speeds for mobile internet access. It is made up of two protocols - HSDPA for faster downloads and HSUPA for faster uploads. HSPA provides download speeds of up to 14 Mbps and upload speeds of up to 5.8 Mbps, allowing users to transfer large files and stream content more smoothly with low latency. It uses advanced techniques like adaptive modulation and coding as well as fast scheduling and retransmissions. HSPA has continued to evolve through releases that deliver even higher speeds and additional capabilities.

2. What is HSPA ?
• High Speed Packet Access
• A wireless access technology designed for increasing the
capacity of Internet connectivity from 3G mobile terminals
• 3G(3rd Generation)Mobile Telecommunication is based on
UMTS protocols

3. WCDMA & UMTS
• Universal Mobile Telecommunications System
• UMTS uses WCDMA radio access Technology
• Wideband Code Division Multiplexing Access
• It employs Spread –spectrum Technology uses
large Bandwidth-5MHz

4. WCDMA

5. The Architecture of HSPA
The amalgamation of two mobile
telephony protocols
1.HSDPA(High Speed Downlink Packet Access)
2.HSUPA(High Speed Uplink Packet Access)
Basic Parts:
• UE(User Equipment)
• Node B
• RNC(Radio Network Controller)

6. HSDPA
• High Speed Downlink Shared Channel (HSDSCH)
High Speed Signaling Control Channel (HS-SCCH)
• High Speed Dedicated Physical Control Channel(HS-DPCCH)
• Channel Quality Information (CQI)
• HARQ ACK/NACK Information

7. • Adaptive Modulation and Coding
• Fast scheduling
• Fast retransmissions
How Dose it Work

8. HSUPA
• Enhanced Dedicated Channel (E-DCH)
• Efficient uplink scheduling
• Fast uplink retransmissions

9. Advantages
• Downloading Speed-14Mbps uploading Speed-5.8 Mbps
• Smooth for Transferring Large file ,live streaming and Web Browsing
• Low latency below 50 m sec
• It uses Shared Channel Transmissions
• Recovering Losing Data by Soft Combining Method At the time of
retransmission

10. • Communication range
If UE is Far away from Base Station(Node B)it cannot get the total Bandwidth
• Number of users
The Quality of Service is Depends upon the Users
• Cost
Expense to upgrade the whole system
Expense to Upgrade User Equipment
Disadvantages

11. • Evolved of HSPA (HSPA+)
• Multiple Input Multiple Output Technology
• Higher Order Modulations
• Multi Carrier Technology
Advancement of HSPA

12. 2000 2001 2002 2003 2004 2005 2006
UMTS(Rel
99)
WCDMA
DL-384 kbps
UL-384 kbps
Release 5
(03/2002)
HSDPA
DL-14.4 Mbps
UL-384 kbps
Release 6
(12/2004)
HSUPA
DL-14.4 Mbps
UL-5.8 Mbps
Release 7
(12/2006)
HSPA+
DL-42Mbps
UL-11 Mbps
Development Of HSPA

13. Conclusion
HSPA (High-Speed Packet Access) is a mobile telephony protocol
which is based on packet sand is used in the 3G or 3.5G radio
networks in order to increase the size of data to be stored and the
speed of the rates of data transfer.
HSPA provides five times the download speeds of the previous
versions by improving spectral efficiency and providing high
download speeds and low latency thus allowing users to download
large files quickly.

14. Reference
3G Evolution HSPA and LTE for Mobile Broadband
-by Eric Dalhman
www.nomor.de
www.3gpp.org

15. Thank You 