HSDPA training course description
High Speed Downlink Packet Access (HSDPA) provides a 8-10Mbps packet based service in
W-CDMA. This theory based course provides an overview of the HSDPA enhancements and the
technologies which are involved.
Who will benefit?
Anyone working with HSDPA.
HSDPA course prerequisites
W-CDMA.
HSDPA training course objectives
By the end of the course delegates will be able to:
- Explain the relationship between HSDPA and UMTS
- Describe the benefits of HSDPA.
- Explain the HSDPA technical enhancements.
- Explain packet flows in HSDPA.
- Recognise the migration issues involved with HSDPA.
Duration: 2 days
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HSDPA
training course contents
UMTS review
UMTS architecture, components, interfaces, protocols, W-CDMA, standards, 3GPPr5, 3GPPr6, evolution to HSDPA.
HSDPA basics
What is HSDPA, key features, system capacities, data rates, delays. Key concepts: Adaptive modulation and coding (AMC), QPSK, 16QAM, HARQ, MAC-hs, multiplexing, subframes.
HSDPA channels
Logical, transport, physical channels, dedicated vs. shared channels, HS-PDSCH, HS-SCCH, HS-DPCCH, code multiplexing.
MAC-hs
Controlling HS-DSCH, flow control, buffering, priority queues, packet scheduling, fast packet scheduling, Selecting modulation and coding. HARQ: Packet retransmissions, Incremental redundancy, comparison with ARQ, TFRC.
HSDPA migration
HSDPA in the Radio Access Network (RAN), reuse of existing UMTS components, changes required, Impact on Iub/Iur interfaces, new and modified NBAP procedures, backwards compatibility.
Packet flows
Packet data session setup, simultaneous voice and data, QoS, TCP flow control, WCDMA
packet scheduler, mobility procedures.
HSDPA phase 2 (3GPP r6)
Antenna array techniques, beamforming techniques, Multiple Input Multiple Output (MIMO). Phase 3 possibilities (OFDM air interface).
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