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The C/I calculation in UL is calculated so that C(j,k) is the received power from the UEj,k at the j-th BS.                                    (Eq. 54) where Pt is the transmit power of the UE in dBm (see UL Power control below) and effective_pathloss is defin...

The frequency of the UE in UL is calculated as follow (Eq. 61) with Diff taking into account for any difference between the BWsystem and the effective bandwidth ( ) so that (Eq. 62) where FUE: Centre frequency of the UE; Fsystem: Frequency of the syst...

In OFDMA UL, the power control is applied to the active users (i.e. the mobile users with specific RBs) so that the UE Tx power is adjusted with respect to the effective path loss (i.e. based on the MCL) to the BS it is connected to. In 3GPP ‎[12], the UL powe...

The concept of a simple correlation model for shadow fading has been widely adopted in LTE co-existence studies mostly employed in uplink case. The propagation attenuation is modelled as the product of the path loss and the shadow fading. The shadow fading is ...

'IMT-2020', better known as 5G, is implemented in SEAMCAT according to the specifications outlined in Recommendation ITU-R M.2101 – 'Modelling and simulation of IMT networks and systems for use in sharing and compatibility studies' \[ref\].The SEAMCAT implemen...

There are two different types of network structure: Homogeneous networks and Heterogeneous networks. A homogeneous network structure consists of a single base station type. It can be a macro, a micro or an indoor base station. A heterogeneous network structure...

IMT-2020 system tab has similar interface as OFDMA system as explained in section 9.3. 

The simulation algorithm is implemented according to the specification outlined in Rec. ITU-R M.2101 – section 3.4.1 for downlink and section 3.4.2 for uplink. This implementation addresses both cases of IMT-2020 as the interfering and victim system.Flowcharts...

Introduction A key. feature of IMT-2020 systems are beamforming array antennas which use phase shifting to an array of individually fed antenna elements to dynamically steer a beam towards a specific user in order to maximise throughput. The main beamforming a...

Active Antenna System Active Antenna System are described in Recommendation ITU-R M.2101 and the extended sub-array AAS model with suggested parameters in ITU-R Working Party 5D Chairman's Report in Chapter 4 Annex 4.4 ITU-R WP5D document 5D/716 "Characteristi...

In Section 7.5. of this Handbook it is explained cellular network positioning of BSs and MSs which is applicable also to IMT-2020 systems in general. In addition to cellular positioning mentioned above, for Hybrid system consisting of combination of Macro and ...

A look up table is used to map throughput in terms of spectral efficiency (bps per Hz) with respect to calculated SINR (= C/(I+N)) (dB) level. Bitrate mapping is connecting radio link quality parameter of SINR to data rates which is then considered in bitrate ...

The results tab for the case of IMT-2020 as a victim system and the produced outputs are similar to those for OFDMA (see section 9)

A typical scenario consists of one victim link which describes the communication system being interfered and at least one interfering link which describes the interfering system(s) that may cause interference to the victim link. CDMA or OFDMA systems are mode...

This option allows SEAMCAT to generate multiple interferers which may have the same or different technical characteristics from each other.  The following menu buttons are available in the interfering system links control panel. Add an ...

This option corresponds to duplicate n times a specific interfering links on a circle or on a hexagonal grid as illustrated below in (a) and (b) respectively. It is available by clicking on (  ). These interferers have the same characteristics as the reference...

Within one interfering link, you can define a number of active interfering transmitters when the mode "None" or "Uniform density" is selected. These active transmitters have the same technical characteristics (i.e. a simple duplicate) and they are deployed spa...

The ILT to VLR path can have several combinations as shown in Figure 224. Four panels characterised the path between the ILT and ILR.  Figure 221: ILT to VLR path combination with generic and cellular system   Figure 222: Transmitter to Victim...