3g evolution of hspa

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3g evolution of hspa

  1. 1. 3G Evolution of HSPA PRESENTED BY- R.RANJITH KUMAR
  2. 2. HSPA - Introduction HSPA, which means of High Speed Packet Access and it is the combination of two mobile telephony protocols, High Speed Downlink Packet Access (HSDPA) and High Speed Uplink Packet Access (HSUPA), that extends and improves the performance of existing 3G mobile telecommunication networks utilizing the WCDMA protocols. HSPA evolution first introduced downlink part called HSDPA in Release 98, Uplink evolution followed later in Release 99 by the name of HSUPA.
  3. 3. Requirements of HSPAData Rate - Demand for higher peak data rates. Delay - Lower latency. Capacity - Better capacity and throughput. - Better spectrum efficiency. - Finer resource granularity. Coverage - Better coverage for higher data rate.
  4. 4. FEATURESHSPA improves the end-user experience by: Increasing peak data rates to 14.4 Mbps in the downlink and 5.8 Mbps in the uplink. Link adaptation in downlink.
  5. 5. TECHNOLOGIES USEDShared-channel transmission, which results in efficient use of available code and power resources in WCDMA. A shorter Transmission Time Interval (TTI) , which reduces roundtrip time and improves the tracking of fast channel variations. Link adaptation, which maximizes channel usage and enables the base station to operate at close to maximum cell power. MIMO, which exploits antenna diversity to provide further improvements in bit-rates and system capacity.
  6. 6. HSPA PEAK DATA RATESDownlink  Theoretical up to 14.4 Mbps  Initial capability 1.8 – 3.6 Mbps # of codes Modulation Uplink  Theoretical up to 5.76 Mbps  Initial capability 1.46 Mbps Max data rate # of codes TTI Max data rate 5 codes QPSK 1.8 Mbps 2 x SF4 2 ms 10 ms 1.46 Mbps 5 codes 16-QAM 3.6 Mbps 2 x SF2 10 ms 2.0 Mbps 10 codes 16-QAM 7.2 Mbps 2 x SF2 2 ms 2.9 Mbps 15 codes 16-QAM 10.1 Mbps 2 x SF2 + 2 x SF4 2 ms 5.76 Mbps 15 codes 64-QAM 14.4 Mbps
  7. 7. HSPA Operation-
  8. 8. HSPA+ * This is the Advanced technology of HSPA. * Data rate: - Downlink : 42 Mbps - Uplink : 11 Mbps * Modulation: - Downlink : 64 QAM - Uplink : 16 QAM
  9. 9. Main Features of HSPA+ * Higher order modulation. * Multiple Input Multiple Output. * Continuous packet connectivity.
  10. 10. Higher Order Modulation-
  11. 11. APPLICATIONS- * Used in the process of Optimization. * Accessing of data.
  12. 12. THANK YOU!

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