High Speed Packet Access

High Speed Packet Access (English: High-Speed Packet Access) protocol is a collection of mobile phone in the realm of 3.5 G that extend and improve the performance of the protocol Universal Mobile Telecommunications System (UMTS). [1] High-Speed Downlink Packet Access (HSDPA), High-Speed Uplink Packet Access (HSUPA), and High Speed Packet Access + (HSPA +) is part of the High-Speed Packet Access (HSPA).

HSPA is the result of the development of the first wave of 3G technology, Release 99 (R99). HSPA able to work so much faster when compared with R99 connection. Related CDMA network, in line with other HSPA Evolution Data Optimized (EV-DO), which is the development of CDMA2000. [2]

Most of the HSPA network is spread on the spectrum of 1900 MHz and 2100 MHz, but some run at 850 MHz. Larger spectrum is used because the operator can reach a wider area and its ability to refarming and reallocation of UHF spectrum.

HSPA provides data transmission rates differ in the data stream down (downlink) and the current rise (uplink), related to the development of standards that made the Third Generation Partnership Project (3GPP). Further development of HSPA can be more easy access to the virtual world as full of neat features and sophisticated so as to reduce the cost per megabit of data transfer.

In the year 2008 there were more than 32 million HSPA connections in the world. This is contrary to the end of the first quarter of 2007 amounted to only 3 million. In the same year, some 80 states already have a HSPA service with more than 467,000 types of HSPA devices available around the world, such as mobile devices, notebooks, data cards, wireless routers, USB Modem.

HSDPA is a protocol that improves the downlink or decline data from the server to the device (download) [2], with speeds of 14.4 Mbit / s. While the uplink in HSDPA technology to reach 384 kbit / s. With such speed, mobile device users can receive large data such as an attachment to an e-mail, presentations in the form of Power Point, atupun can open a Web page. As an illustration, the network speed HSDPA 3.6 Mbit / s can download music data which is about 3 Mb in 8.3 seconds and the video data size 5 Mb in 13.9 seconds. HSDPA present since 2006 in Europe. [4]...

HSUPA is a protocol that improves the phone or the uplink process penaikkan data from the device to the server (upload) [2] which reaches 5.76 Mbit / s.Dengan this speed, users can more easily upload text, images, and videos to your personal blog or sites like YouTube in just a few seconds. HSUPA can also make it easier to do streaming video with DVD quality, video conferencing, real-time games, e-mail, and MMS. [5] When there is a failure in data transmission, HSUPA can do resent. [5] The level of transmission speed can also be adapted to the situation when an interruption occurs transmisi.HSUPA networks commercially launched the first time in early 2007. [6]


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