WiMAX RF Planning

Subject: 4G WiMAX
Category: Radio
Duration: 3 days

Course outline:

WiMAX RF Design Process

● RF Planning workflow
● Inputs to and targets for the planning; expected outputs
● Coverage and capacity requirements
● Planning constraints
● Significant differences in planning when compared to GSM and UMTS

WiMAX Architecture and Air Interface (tool-based)

● WiMAX waves, releases and system profiles; WiMAX Forum certification
● WiMAX network architecture: nodes and interfaces
● BS and MS architecture
● Radio frame for mobile WiMAX (FDD and TDD)
● OFDMA parameters for WirelessMAN-OFDMA
● Data mapping for downlink and uplink
● Preambles and pilots
● Link-level radio interface simulations

Radio Propagation Principles (tool-based)

● Spectrum considerations and WiMAX frequency bands
● RF channel definitions
● MS and BS transmitter power parameters
● Large-scale and small-scale propagation effects; pathloss, shadowing and fading
● Propagation models: statistical, empirical and deterministic
● Configuration and tuning of the propagation model

Antenna Considerations and MIMO

● Antenna properties – size, gain, beam-width, polarization, front-to-back ratio
● WiMAX diversity techniques
● Spatial multiplexing, single-user and multi-user MIMO
● Transmission modes and MIMO feedback signaling
● Impact on WIMAX link budget and capacity.
● Antenna system sharing options

Coverage Planning and Link Budgets (tool-based)

● Link budgets, gains and losses
● Role of adaptive modulation and coding scheme
● Requirements for signal-to-noise-and-interference ratio (SNIR) and receiver sensitivity
● Thermal noise calculations and interference estimation
● Maximum allowed path loss
● Impact of cyclic prefix length on the link budget
● Indoor considerations
● Impact of antenna configuration
● Range determination and site-to-site distance estimation
● Signal level and best server coverage plots
● SNIR and spectrum efficiency coverage plots
● Site sharing options coverage with the use of repeaters
● WIMAX downlink and uplink link budget exercises
● Planning tool configuration and simulations

Frequency Reuse and Interference Management (tool-based)

● Interference avoidance, cancellation and coordination
● Interference management vs. FUSC, PUSC and AMC
● Interference scenarios for FDD and TDD
● Considerations for Single Frequency Network (SFN)
● Frequency-parallel schemes (OFDMA) in SFN
● Classical frequency reuse concept (integer reuse)
● Fractional frequency reuse methods including soft reuse and partial reuse
● Frequency planning performance evaluations and simulations

WiMAX Capacity Planning (tool-based)

● QoS concept and QoS classes
● Traffic types and device types
● Impact of MCS and SNIR distribution on
● Capacity planning with MIMO
● Influence of Modulation and Coding Scheme distribution sector capacity
● Overview of backhaul network options and requirements
● Exercises in capacity calculations
● Planning tool configuration and simulations

RAN Procedures Configuration

● Preamble planning
● Configuration of FUSC, PUSC, OPUSC, AMC
● Cell reselection and handover parameters
● Uplink and downlink transmit power control

WiMAX Inter-working with Other Networks

● Roaming: data access via home network and data access via visited network
● Inter-working with 3GPP E-UTRAN and CDMA 2000 networks

To receive more information: