Initially the downlink was addressed using high speed downlink packet access, HSDPA and then upgrades were added to the uplink with high speed uplink packet access. Further upgrades were added later with dual carrier and MIMO capabilities to raise the data speeds hugely above those first envisaged for 3G.
The UMTS cellular system as defined under the 3GPP Release 99 standard was orientated more towards switched circuit operation and was not well suited to packet operation. Additionally greater speeds were required by users than could be provided with the original UMTS networks.
Accordingly the changes required for HSPA were incorporated into many UMTS networks to enable them to operate more in the manner required for current applications. HSPA provides a number of significant benefits that enable the new service to provide a far better performance for the user. For the network operator, the introduction of 3G HSPA technology brings a cost reduction per bit carried as well as an increase in system capacity.
With the increase in data traffic, and operators looking to bring in increased revenue from data transmission, this is a particularly attractive proposition. A further advantage of the introduction of 3G HSPA is that it can often be rolled out by incorporating a software update into the system. This means its use brings significant benefits to user and operator alike.
The two technologies were released at different times through 3GPP. They also have different properties resulting from the different modes of operation that are required. In view of these facts they were often treated as almost separate entities. Now they are generally rolled out together. Share this: Twitter Facebook.
RCR Wireless News. Editorial Reports. Editorial Report: The challenges and opportunities of small cell network densification October 27, October 26, October 17, White Papers.
October 28, October 12, Editorial Webinar: Creative destruction: How network disaggregation changes everything November 4, November 4, Editorial Webinar: The role of hyperscalers in enterprise 5G November 4, Editorial Webinar: Rural Broadband in the real world November 3, Featured Content. The main advance in HSPA over older technologies is improvement in the protocols, or communications rules, that facilitate the movement of voice and data packets between hand-held devices and base stations.
Communications network engineers work to improve the speed, amount of data per channel, number of channels, error detection, and methods of data encoding and decoding. As a result of these more efficient protocols, users of broadband-hungry multimedia services can download content quicker.
Users, for example, are less likely to experience the delayed buffering of video that was indicative of older generation air interface protocols. It downloads at a peak data rate of 14 megabits per second Mbps and uploads at 5.
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