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8.2.2 General

8 CDMA module 8.2 CDMA system tab

You can enter the frequency. The frequency value is overwritten at the “Scenario” tab level.  Table 26: General system panel Description Symbol Type Unit Comments Frequency f Distribution or Scalar MHz Distribution of the centre freq...

8.3 General settings

8 CDMA module

Introduction

8 CDMA module 8.3 General settings

The General settings tabsheet contains a range of CDMA system parameters as well as some parameters that depend on the modelled direction of CDMA link (uplink vs. downlink). 7 panels characterised the CDMA system. The below graphic represent the CDMA UL when a...

8.3.1 CDMA general settings

8 CDMA module 8.3 General settings

Table 27: CDMA general settings input parameters Description Symbol Type Unit Comments Receiver Noise Figure   Scalar dB Equipment-specific noise figure of receiver. It is used to calculate the noise floor. See Section‎1.2.2 Hand...

8.3.2 Local environment

8 CDMA module 8.3 General settings

You can choose the suitable indoor and outdoor ratio for the mobile station to be used by the propagation model. Further details are presented in Section ‎5.4.3.

8.3.3 Receiver settings

8 CDMA module 8.3 General settings

This content of this panel depends whether CDMA system is a victim or an interfering system. If the CDMA is a victim, you will have to set the blocking mask. It is a shared interface with OFDMA. Figure 192: Cellular panel receiver settings   Table 27: Receive...

8.3.4 Transmitter settings

8 CDMA module 8.3 General settings

This content of this panel depends whether CDMA system is a victim or an interfering system.  If the CDMA is an interferer, you will have to set the spectrum emission mask and the emissions floor. It is a shared interface with OFDMA.   Figure 190: Cellular pan...

8.3.5 CDMA uplink

8 CDMA module 8.3 General settings

This is only available if CDMA UL selected.   Table 29: CDMA UL input parameters for the power control Description Symbol Type Unit Comments Target network noise rise   Scalar dB Specific level of noise th...

8.3.6 CDMA downlink

8 CDMA module 8.3 General settings

This panel is available only if CDMA DL selected.   Table 30: CDMA DL input parameters for the power control Description Symbol Type Unit Comments Success threshold   Scalar dB Threshold to determine perfect link quality. Base St...

8.3.7 CDMA capacity

8 CDMA module 8.3 General settings

The capacity of the simulated system (i.e. how many mobiles per cell should be generated in the system) is dependent on all other settings and cannot always be easily deducted from these. Therefore SEAMCAT has a feature that allows for automatic determination ...

8.3.8 Propagation Model

8 CDMA module 8.3 General settings

You can choose the suitable propagation model to be applied when calculating signal loss along the transmitter and the receiver path. A choice and settings of propagation models are presented in ‎ANNEX 17:. 

8.4 Positioning

8 CDMA module

See section ‎7.5, common to CDMA and OFDMA on the positioning of BSs and MSs.

8.5 CDMA Link level data

8 CDMA module

8.5.1 CDMA link level system mapping

8 CDMA module 8.5 CDMA Link level data

Power control is a crucial mechanism in CDMA mobile radio networks, which needs to be modeled in SEAMCAT. It is a complex process involving various layers of signaling, measurement and modulation/demodulation procedures. It is not feasible to model signaling, ...

8.5.2 CDMA DL Power Control Methodology (VOICE ONLY)

8 CDMA module 8.5 CDMA Link level data

Figure 193 presents the dependency between the condition of a user in the network (the so called geometry), mobile speed and soft handover state of the UE that are needed to map a particular link quality to the channel power requirement.   Figure 193: Po...

8.5.3 CDMA uplink Power Control Methodology in SEAMCAT (VOICE ONLY)

8 CDMA module 8.5 CDMA Link level data

Performance characteristics of individual links to be used in the power control module of SEAMCAT are generated a priori from link level simulations. This usually includes several mappings between requested link quality (e.g. block error rate, BLER) and requir...

8.6 CDMA Downlink - simulation algorithm

8 CDMA module

8.6.1 Simulation Methodology

8 CDMA module 8.6 CDMA Downlink - simulation algorithm

The main goal of the downlink power control in SEAMCAT is to calculate the total BS output power and the success rate (% of calls with no link quality degradation) for a given snapshot of the system. BS output power is a key parameter in the scenarios where CD...