HSPA

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HSPA

(High Speed Packet Access) A family of high-speed 3G and 4G digital data services governed by the 3rd Generation Partnership Project (3GPP). Deployed by GSM cellular carriers, at the end of 2014, nearly two billion subscribers were using HSPA worldwide. Although based on WCDMA, HSPA is a major enhancement with more channels and enhanced modulation schemes. In addition, HSPA can recover faster from errors (see HARQ).

First deployed in the U.S. in 2005, subsequent HSPA+ (HSPA Plus) releases added support for multiple antennas and was designated as a 4G technology by the ITU (see MIMO). See LTE, 4G, 3GPP, DC HSPA, cellular generations, Wi-Fi vs. cellular, WCDMA, TDMA and GSM.
          Maximum Down   Maximum UpHSDPA        HSUPA         Mbps         MbpsWCDMA       .4 (QPSK)    .4 (QPSK)

 3GPPRelease#  Name  5  HSPA       14.4 (16QAM)

  6  HSPA                    5.7 (QPSK)

  7  HSPA+/4G
     2x2 MIMO   28 (16QAM)   11 (16QAM)
  8  2x2 MIMO   42 (64QAM)   11 (16QAM)
  9  2x2 MIMO   84 (64QAM)   23 (16QAM)
 10  2x2 MIMO  168 (64QAM)   23 (16QAM)
 11  4x4 MIMO  336 (64QAM)   35 (64QAM)
 12  4x4 MIMO  336 (64QAM)   35 (64QAM)
 (modulation method)  See  QAM and  QPSK.



Support for 3G HSPA and 2G EDGE
When this iPhone 3G was in range of a 3G cell tower, it used HSPA. However, it throttled down to the EDGE (E) channel when 3G was not available.




Support for 3G HSPA and 2G EDGE
When this iPhone 3G was in range of a 3G cell tower, it used HSPA. However, it throttled down to the EDGE (E) channel when 3G was not available.
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References in periodicals archive ?
[57], published on January 2017, has evaluated the ibuprofen intrarectal way ofadministration, which became as effective as the oral way in VLBW neonates with hsPDA. After treatment, in both groups the authors demonstrated higher levels of Cystatin-C, a biomarker of glomerular filtration which can suggest nephrotoxicity, indicating the necessity of a closely clinical observation especially in patients with a damaged renal function.
In most full term infants, the ductus arteriosus closes during the first 48 hours after birth.4 However, in many small preterm infants the ductus remains open allowing an increasing systemic-to-pulmonary shunt as the pulmonary vascular resistance falls due to the elevated sensitivity of the ductal tissue to the dilating effects of prostaglandins and low sensitivity to the effects of oxygen.5 As a result, the ductus of preterm infants can remain open for many days, and although it may constrict initially, it frequently reopens6 resulting in, the decreased in the systemic blood flow, while the pulmonary blood flow is increased.7 This is labelled as hemodynamically significant PDA (HsPDA).
Also to be noted, is the 21Mbps HSPDA connectivity mentioned.
ZTE Corporation, a provider of telecomms equipment and network solutions, announced on 30 September the unveiling of its U990 high-end HSPDA TD-SCDMA mobile handset.
Featuring a 3 megapixel camera, 1GB internal memory, HSPDA up to 3.6Mbps and with a stylish stainless steel finish and depth of only 9.9mm - the sublimely simple Samsung U800 is not just powerful on the inside, but beautiful on the outside.
“The evolution of technologies such as HSPDA and LTE will help operators keep pace with the QoS requirements of mobile broadband consumers.”
TELECOMWORLDWIRE-30 September 2008-Vodafone UK launches VF830 HSPDA handset(C)1994-2008 M2 COMMUNICATIONS LTD http://www.m2.com
The announcement also indicated that T-Mobile intends to release HSPDA devices for use on its network in the near future.
The tool works across multiple technology mobile networks including WiMAX, HSPDA, 2, 2.5 and 3G, giving it the ability to analyse complex deployment and capacity scenarios.
Australian telecomms company Telstra has selected SurfKitchen, a provider of On-Device Portal Applications, to power the user experience behind the launch of its Next G High Speed Downlink Packet Access (HSPDA) network.
The optimised network delivers SmarTone-Vodafone's Mobile Broadband, providing the first commercial wireless data service, with HSPDA coverage, throughout Hong Kong.