HSPA High Speed Packet Access

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HSPAHigh Speed Packet Access
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Aim

• This presentation aims to analyze the confusion
  and over sayings surrounding the relative merits
  of various wireless broadband technologies like
  WiMAX, EDGE and get to the real reasons that will
  influence the success of mobile broadband and
  its ability to deliver broadband for all and
  everywhere.

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OUTLINE

• Introduction
• Adoption
• Architecture of HSPA
• Comparison with WiMAX

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Introduction HSPA

• HSPA, the undisputed choice for mobile
• broadband
• HSPA offers operators a single network for
  multiple services.
• HSPA a state-of-the art technology.
• HSUPA is to follow HSDPA
• HSPAHSDPA HSUPA

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Adoption of HSPA
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HSDPA

• High Speed Downlink Packet Access
• High speed data enhancement for WCDMA/UMTS
• Peak theoretical speeds of 14.4 Mbps
• Current devices support 7.2 Mbps throughput
• Methods used by HSDPA
• Short transmission time interval (TTI)
• Fast scheduling and user diversity
• Higher-order modulation
• Fast link adaptation
• Fast hybrid automatic-repeat-request (HARQ)

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HSUPA

• High Speed Uplink Packet Access
• 85 increase in overall cell throughput on the
  uplink
• Achievable rates of 1 Mbps on the uplink
• Reduced packet delays to as low as 30 msec
• Methods used by HSUPA
• An enhanced dedicated physical channel
• A short TTI, as low as 2 msec, which allows
  faster responses to changing radio conditions and
  error conditions
• Fast Hybrid ARQ, which improves the efficiency of
  error processing

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Architecture
GGSN- Gateway GPRS Support Node SGSN- Serving
GPRS Support Node RNC- Radio n/w
Controller DHCP-Dynamic Host Configuration
Protocol HSS-Home subscriber
server PCRF-Policy Control Charging Rules
Function
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EXPLANATION

• HSPA is a Frequency Division Duplex (FDD)
  technology, in which the uplink and downlink are
  in separate frequency channels (usually denoted
  as 2x5MHz).
• RNC- Radio Network controller
• That is connected between Base Stations and Core
  Network.

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Evolution of 3GPP family of standards
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COMPARISONS

• HSPA is a Frequency Division Duplex (FDD)
  technology. Mobile WiMAX is a Time Division
  Duplex (TDD) technology,
• uplink and downlink frequency channels

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Technology
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Spectral Efficiency
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Architecture
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Comparison of various technology
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HSPA

• HSPA Objectives
• Achieve performance close to LTE in 5 MHz of
  spectrum.
• Provide smooth internetworking between HSPA and
  LTE, thereby facilitating the operation of both
  technologies.
• Allow operation in a packet-only mode for both
  voice and data.
• Facilitate migration from current HSPA
  infrastructure to HSPA infrastructure.

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HSPA/HSPA One Tunnel Architecture
GGSN- Gateway GPRS Support Node SGSN- Serving
GPRS Support Node RNC- Radio n/w Controller
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Technologies used in mobile broad band
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FUTURE PERSPECTIVE

• However, HSPA is only one step in the evolution
  of mobile broadband.
• Delivering peak rates of 14Mbps in the downlink
  and 5.8Mbps in the uplink today, its evolution
  adds support for MIMO and 64QAM that will deliver
  42Mbps in the downlink and 11.5Mbps in the
  uplink.
• In parallel, LTE will deliver further
  enhancements in peak rates (exceeding 100Mbps),
  in addition to scalable channel bandwidths using
  OFDMA with both TDD and FDD operation. LTE and
  HSPA-evolved offer maximum spectrum flexibility
  while delivering true high-speed, high-quality 4G
  performance.

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CONCLUSION

• HSPA is the undisputed leader in mobile broadband
  services covering both traditional mobile
  terminals and personal consumer devices such as
  notebooks, ultra mobile PCs, cameras, portable
  game consoles and music players
• Economically viable and affordable with respect
  to rest of Gadgets of ecosystem.
• Ever-improving performance, with
  commercially-proven transmission bit-rates of up
  to 14Mbps today and up to 42Mbps in the near
  future
• highly economic urban and rural coverage, with up
  to 200km cell range and measured speeds in excess
  of 2Mbps at the cell border

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• HSPA is a clearly defined and easily adopted
  evolution path.

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REFERANCES

• 1 3G Americas, Mobile Broadband EDGE, HSPA
  and LTE, September 2006, www.3gamericas.org/Engli
  sh/Technology_Center/WhitePapers/
• 2 Ericsson white paper, Basic Concepts of
  HSPA, February 2007.
• 3 Nokia A Comparison between EDGE and
  Alternative Technologies, June 5, 2001,
  www.3gamericas.org
• 4 http//www.rysavy.com/papers.html, May 2007
• 5 www.ericsson.com

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• THANK YOU