2-day instructor-led training with case studies

The goal of “UMTS Air Interface” is to present details for the radio interface of UMTS. It encourages the participants to understand the intricacies of the radio interface, its challenges and what all data is exchanged by the UE bearing the environmental conditions.

The UMTS Air Interface course describes the physical layer of the UMTS radio access as defined in the UMTS standards. It provides an understanding of the WCDMA access method and how the generation and allocation of codes are handled in UMTS. Further, the different types of channels used in the UMTS radio access are discussed as well as the physical channels. The UMTS transmitter in UE and Node B with all its channels is explained in detail. The QPSK modulation technique, selected for UMTS, is also covered.

The various physical layer procedures such as cell search, random access, packet access, dedicated channels establishment and power control are described. Multiple services from/to one and the same UE is a challenge for the transmitter. The course presents how the services are multiplexed together, and mapped on to physical channels.

The participants will gain a detailed end-to-end knowledge of the UMTS technology, its benefits and potential pitfalls.

A basic knowledge of GSM/CDMA, IP and data communication technology will be required.

For technicians, engineers and managers responsible for planning, design, and operation of UMTS networks and indoor design services.

• UMTS System introduction
• The UMTS transmitter

• UMTS W-CDMA coding
• I/Q- and time multiplexing
• QPSK
• Complex spreading

• Physical channels
• Radio frame timing of downlink physical channels

• Cell Search with asynchronous base station operation
• Random Access
• Packet Access
• Paging with discontinuous reception
• Dedicated channel synchronization

• The physical layer processing chain with CRC detection,
• Convolutional coding
• Turbo coding
• Interleaving
• Radio frame
• Slot segmentation

• Higher data rare DL
• New channels
• Radio Modulation Method
• Fast Link Adaptation by Node B

• Uplink Power Control
• Downlink Power Control