Enhanced High-Speed Packet Access - HSPA+

HASP+ Goals:-

• Provide spectrum efficiency, peak data rates & latency comparable to LTE in 5 MHz
• Allow operation in an optimized packet-only mode for voice and data
• backward compatible with Release 99 through Release 6
• smooth migration path to LTE/SAE through commonality, and 
  facilitate joint technology operation

Contents:-


1. Background: HSPA Evolution

• HSPA+ introduced to continue focus on enhancements to HSPA
• Aggressive HSPA+goals for enhancing HSPA
• HOMs increase the number of bits/symbols transmitted, thereby increasing the peak rate
• HOM Peak Rate Performance Benefits: DL 64-QAM & UL 16-QAM

2. Higher data rates

• Fixed Beam Switching (FBS)
• MIMO in HSPA+

3. Signaling Improvements

• Continuous Packet Connectivity (CPC)
• Enhanced CELL_FACH & Enhanced Paging Procedure

4. Architecture Evolution/ Home NodeB

• Enhanced Layer-2 Support for High Data Rates
• MAC-ehs in NodeB
• Evolved HSPA Architecture

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